can't ssh into the instance failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "root@10.128.1.28" "pwd"]: exit status 255 ssh: connect to host 10.128.1.28 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-job-test-job-2 port 1 (session ID: 8a34031568eb43653ec1a4aeb67a48bcd1348fe259405b5c12ae943deb404c0f, active connections: 1). [ 28.744932][ T1] finish_task_switch+0x239/0x790 [ 28.744932][ T1] ? dump_stack+0x1de/0x1f0 [ 28.744932][ T1] __schedule+0x7d3/0x1580 [ 28.744932][ T1] ? __sched_text_start+0x8/0x8 [ 28.744932][ T1] schedule+0xa8/0x260 [ 28.744932][ T1] schedule_timeout+0x717/0xc50 [ 28.744932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.744932][ T1] ? find_held_lock+0x35/0x130 [ 28.744932][ T1] ? usleep_range+0x170/0x170 [ 28.744932][ T1] ? kasan_check_write+0x14/0x20 [ 28.744932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.744932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.744932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.744932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.744932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.744932][ T1] ? kasan_check_read+0x11/0x20 [ 28.744932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.744932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.744932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.744932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.744932][ T1] ? kasan_check_read+0x11/0x20 [ 28.744932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.744932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.744932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.744932][ T1] ? pointer+0x750/0x750 [ 28.744932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.744932][ T1] ? process_one_work+0x1790/0x1790 [ 28.744932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.744932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.744932][ T1] ? vsprintf+0x40/0x40 [ 28.744932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.744932][ T1] create_worker+0x25c/0x570 [ 28.744932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.744932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.744932][ T1] ? find_next_bit+0x107/0x130 [ 28.744932][ T1] workqueue_init+0x5cf/0x71e [ 28.744932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.744932][ T1] ? rest_init+0x37b/0x37b [ 28.744932][ T1] kernel_init+0x12/0x1c5 [ 28.744932][ T1] ret_from_fork+0x24/0x30 [ 28.744990][ T1] mmgrab (____ptrval____) to 4 [ 28.749753][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.754932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.754932][ T1] Call Trace: [ 28.754932][ T1] dump_stack+0x172/0x1f0 [ 28.754932][ T1] __schedule+0xd03/0x1580 [ 28.754932][ T1] ? __sched_text_start+0x8/0x8 [ 28.754932][ T1] schedule+0xa8/0x260 [ 28.754932][ T1] schedule_timeout+0x717/0xc50 [ 28.754932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.754932][ T1] ? find_held_lock+0x35/0x130 [ 28.754932][ T1] ? usleep_range+0x170/0x170 [ 28.754932][ T1] ? kasan_check_write+0x14/0x20 [ 28.754932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.754932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.754932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.754932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.754932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.754932][ T1] ? kasan_check_read+0x11/0x20 [ 28.754932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.754932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.754932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.754932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.754932][ T1] ? kasan_check_read+0x11/0x20 [ 28.754932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.754932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.754932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.754932][ T1] ? pointer+0x750/0x750 [ 28.754932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.754932][ T1] ? process_one_work+0x1790/0x1790 [ 28.754932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.754932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.754932][ T1] ? vsprintf+0x40/0x40 [ 28.754932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.754932][ T1] create_worker+0x25c/0x570 [ 28.754932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.754932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.754932][ T1] ? find_next_bit+0x107/0x130 [ 28.754932][ T1] workqueue_init+0x5cf/0x71e [ 28.754932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.754932][ T1] ? rest_init+0x37b/0x37b [ 28.754932][ T1] kernel_init+0x12/0x1c5 [ 28.754932][ T1] ret_from_fork+0x24/0x30 [ 28.754971][ T7] mmdrop (____ptrval____) before 4 [ 28.760091][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.764932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.764932][ T7] Call Trace: [ 28.764932][ T7] dump_stack+0x172/0x1f0 [ 28.764932][ T7] finish_task_switch+0x239/0x790 [ 28.764932][ T7] ? dump_stack+0x1de/0x1f0 [ 28.764932][ T7] __schedule+0x7d3/0x1580 [ 28.764932][ T7] ? __sched_text_start+0x8/0x8 [ 28.764932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.764932][ T7] schedule+0xa8/0x260 [ 28.764932][ T7] kthread+0x27a/0x420 [ 28.764932][ T7] ? process_one_work+0x1790/0x1790 [ 28.764932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.764932][ T7] ret_from_fork+0x24/0x30 [ 28.764974][ T7] mmgrab (____ptrval____) to 4 [ 28.769744][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.774932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.774932][ T7] Call Trace: [ 28.774932][ T7] dump_stack+0x172/0x1f0 [ 28.774932][ T7] __schedule+0xd03/0x1580 [ 28.774932][ T7] ? __sched_text_start+0x8/0x8 [ 28.774932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.774932][ T7] schedule+0xa8/0x260 [ 28.774932][ T7] kthread+0x27a/0x420 [ 28.774932][ T7] ? process_one_work+0x1790/0x1790 [ 28.774932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.774932][ T7] ret_from_fork+0x24/0x30 [ 28.774963][ T1] mmdrop (____ptrval____) before 4 [ 28.780248][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.784932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.784932][ T1] Call Trace: [ 28.784932][ T1] dump_stack+0x172/0x1f0 [ 28.784932][ T1] finish_task_switch+0x239/0x790 [ 28.784932][ T1] ? dump_stack+0x1de/0x1f0 [ 28.784932][ T1] __schedule+0x7d3/0x1580 [ 28.784932][ T1] ? __sched_text_start+0x8/0x8 [ 28.784932][ T1] schedule+0xa8/0x260 [ 28.784932][ T1] schedule_timeout+0x717/0xc50 [ 28.784932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.784932][ T1] ? find_held_lock+0x35/0x130 [ 28.784932][ T1] ? usleep_range+0x170/0x170 [ 28.784932][ T1] ? kasan_check_write+0x14/0x20 [ 28.784932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.784932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.784932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.784932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.784932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.784932][ T1] ? kasan_check_read+0x11/0x20 [ 28.784932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.784932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.784932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.784932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.784932][ T1] ? kasan_check_read+0x11/0x20 [ 28.784932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.784932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.784932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.784932][ T1] ? pointer+0x750/0x750 [ 28.784932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.784932][ T1] ? process_one_work+0x1790/0x1790 [ 28.784932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.784932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.784932][ T1] ? vsprintf+0x40/0x40 [ 28.784932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.784932][ T1] create_worker+0x25c/0x570 [ 28.784932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.784932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.784932][ T1] ? find_next_bit+0x107/0x130 [ 28.784932][ T1] workqueue_init+0x5cf/0x71e [ 28.784932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.784932][ T1] ? rest_init+0x37b/0x37b [ 28.784932][ T1] kernel_init+0x12/0x1c5 [ 28.784932][ T1] ret_from_fork+0x24/0x30 [ 28.784978][ T1] mmgrab (____ptrval____) to 4 [ 28.789758][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.794932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.794932][ T1] Call Trace: [ 28.794932][ T1] dump_stack+0x172/0x1f0 [ 28.794932][ T1] __schedule+0xd03/0x1580 [ 28.794932][ T1] ? __sched_text_start+0x8/0x8 [ 28.794932][ T1] schedule+0xa8/0x260 [ 28.794932][ T1] schedule_timeout+0x717/0xc50 [ 28.794932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.794932][ T1] ? find_held_lock+0x35/0x130 [ 28.794932][ T1] ? usleep_range+0x170/0x170 [ 28.794932][ T1] ? kasan_check_write+0x14/0x20 [ 28.794932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.794932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.794932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.794932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.794932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.794932][ T1] ? kasan_check_read+0x11/0x20 [ 28.794932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.794932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.794932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.794932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.794932][ T1] ? kasan_check_read+0x11/0x20 [ 28.794932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.794932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.794932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.794932][ T1] ? pointer+0x750/0x750 [ 28.794932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.794932][ T1] ? process_one_work+0x1790/0x1790 [ 28.794932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.794932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.794932][ T1] ? vsprintf+0x40/0x40 [ 28.794932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.794932][ T1] create_worker+0x25c/0x570 [ 28.794932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.794932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.794932][ T1] ? find_next_bit+0x107/0x130 [ 28.794932][ T1] workqueue_init+0x5cf/0x71e [ 28.794932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.794932][ T1] ? rest_init+0x37b/0x37b [ 28.794932][ T1] kernel_init+0x12/0x1c5 [ 28.794932][ T1] ret_from_fork+0x24/0x30 [ 28.794964][ T7] mmdrop (____ptrval____) before 4 [ 28.804975][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.812302][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.814932][ T7] Call Trace: [ 28.814932][ T7] dump_stack+0x172/0x1f0 [ 28.814932][ T7] finish_task_switch+0x239/0x790 [ 28.814932][ T7] ? dump_stack+0x1de/0x1f0 [ 28.814932][ T7] __schedule+0x7d3/0x1580 [ 28.814932][ T7] ? __sched_text_start+0x8/0x8 [ 28.814932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.814932][ T7] schedule+0xa8/0x260 [ 28.814932][ T7] kthread+0x27a/0x420 [ 28.814932][ T7] ? process_one_work+0x1790/0x1790 [ 28.814932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.814932][ T7] ret_from_fork+0x24/0x30 [ 28.814977][ T7] mmgrab (____ptrval____) to 4 [ 28.819750][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.824932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.824932][ T7] Call Trace: [ 28.824932][ T7] dump_stack+0x172/0x1f0 [ 28.824932][ T7] __schedule+0xd03/0x1580 [ 28.824932][ T7] ? __sched_text_start+0x8/0x8 [ 28.824932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.824932][ T7] schedule+0xa8/0x260 [ 28.824932][ T7] kthread+0x27a/0x420 [ 28.824932][ T7] ? process_one_work+0x1790/0x1790 [ 28.824932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.824932][ T7] ret_from_fork+0x24/0x30 [ 28.824968][ T1] mmdrop (____ptrval____) before 4 [ 28.834982][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.842279][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.844932][ T1] Call Trace: [ 28.844932][ T1] dump_stack+0x172/0x1f0 [ 28.844932][ T1] finish_task_switch+0x239/0x790 [ 28.844932][ T1] ? dump_stack+0x1de/0x1f0 [ 28.844932][ T1] __schedule+0x7d3/0x1580 [ 28.844932][ T1] ? __sched_text_start+0x8/0x8 [ 28.844932][ T1] schedule+0xa8/0x260 [ 28.844932][ T1] schedule_timeout+0x717/0xc50 [ 28.844932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.844932][ T1] ? find_held_lock+0x35/0x130 [ 28.844932][ T1] ? usleep_range+0x170/0x170 [ 28.844932][ T1] ? kasan_check_write+0x14/0x20 [ 28.844932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.844932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.844932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.844932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.844932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.844932][ T1] ? kasan_check_read+0x11/0x20 [ 28.844932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.844932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.844932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.844932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.844932][ T1] ? kasan_check_read+0x11/0x20 [ 28.844932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.844932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.844932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.844932][ T1] ? pointer+0x750/0x750 [ 28.844932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.844932][ T1] ? process_one_work+0x1790/0x1790 [ 28.844932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.844932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.844932][ T1] ? vsprintf+0x40/0x40 [ 28.844932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.844932][ T1] create_worker+0x25c/0x570 [ 28.844932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.844932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.844932][ T1] ? find_next_bit+0x107/0x130 [ 28.844932][ T1] workqueue_init+0x5cf/0x71e [ 28.844932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.844932][ T1] ? rest_init+0x37b/0x37b [ 28.844932][ T1] kernel_init+0x12/0x1c5 [ 28.844932][ T1] ret_from_fork+0x24/0x30 [ 28.844975][ T1] mmgrab (____ptrval____) to 4 [ 28.849751][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.854932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.854932][ T1] Call Trace: [ 28.854932][ T1] dump_stack+0x172/0x1f0 [ 28.854932][ T1] __schedule+0xd03/0x1580 [ 28.854932][ T1] ? __sched_text_start+0x8/0x8 [ 28.854932][ T1] schedule+0xa8/0x260 [ 28.854932][ T1] schedule_timeout+0x717/0xc50 [ 28.854932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.854932][ T1] ? find_held_lock+0x35/0x130 [ 28.854932][ T1] ? usleep_range+0x170/0x170 [ 28.854932][ T1] ? kasan_check_write+0x14/0x20 [ 28.854932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.854932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.854932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.854932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.854932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.854932][ T1] ? kasan_check_read+0x11/0x20 [ 28.854932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.854932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.854932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.854932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.854932][ T1] ? kasan_check_read+0x11/0x20 [ 28.854932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.854932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.854932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.854932][ T1] ? pointer+0x750/0x750 [ 28.854932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.854932][ T1] ? process_one_work+0x1790/0x1790 [ 28.854932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.854932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.854932][ T1] ? vsprintf+0x40/0x40 [ 28.854932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.854932][ T1] create_worker+0x25c/0x570 [ 28.854932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.854932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.854932][ T1] ? find_next_bit+0x107/0x130 [ 28.854932][ T1] workqueue_init+0x5cf/0x71e [ 28.854932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.854932][ T1] ? rest_init+0x37b/0x37b [ 28.854932][ T1] kernel_init+0x12/0x1c5 [ 28.854932][ T1] ret_from_fork+0x24/0x30 [ 28.854963][ T7] mmdrop (____ptrval____) before 4 [ 28.860081][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.864932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.864932][ T7] Call Trace: [ 28.864932][ T7] dump_stack+0x172/0x1f0 [ 28.864932][ T7] finish_task_switch+0x239/0x790 [ 28.864932][ T7] ? dump_stack+0x1de/0x1f0 [ 28.864932][ T7] __schedule+0x7d3/0x1580 [ 28.864932][ T7] ? __sched_text_start+0x8/0x8 [ 28.864932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.864932][ T7] schedule+0xa8/0x260 [ 28.864932][ T7] kthread+0x27a/0x420 [ 28.864932][ T7] ? process_one_work+0x1790/0x1790 [ 28.864932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.864932][ T7] ret_from_fork+0x24/0x30 [ 28.864977][ T7] mmgrab (____ptrval____) to 4 [ 28.869849][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.874932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.874932][ T7] Call Trace: [ 28.874932][ T7] dump_stack+0x172/0x1f0 [ 28.874932][ T7] __schedule+0xd03/0x1580 [ 28.874932][ T7] ? __sched_text_start+0x8/0x8 [ 28.874932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.874932][ T7] schedule+0xa8/0x260 [ 28.874932][ T7] kthread+0x27a/0x420 [ 28.874932][ T7] ? process_one_work+0x1790/0x1790 [ 28.874932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.874932][ T7] ret_from_fork+0x24/0x30 [ 28.874994][ T1] mmdrop (____ptrval____) before 4 [ 28.884971][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.892410][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.894932][ T1] Call Trace: [ 28.894932][ T1] dump_stack+0x172/0x1f0 [ 28.894932][ T1] finish_task_switch+0x239/0x790 [ 28.894932][ T1] ? dump_stack+0x1de/0x1f0 [ 28.894932][ T1] __schedule+0x7d3/0x1580 [ 28.894932][ T1] ? __sched_text_start+0x8/0x8 [ 28.894932][ T1] schedule+0xa8/0x260 [ 28.894932][ T1] schedule_timeout+0x717/0xc50 [ 28.894932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.894932][ T1] ? find_held_lock+0x35/0x130 [ 28.894932][ T1] ? usleep_range+0x170/0x170 [ 28.894932][ T1] ? kasan_check_write+0x14/0x20 [ 28.894932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.894932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.894932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.894932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.894932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.894932][ T1] ? kasan_check_read+0x11/0x20 [ 28.894932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.894932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.894932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.894932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.894932][ T1] ? kasan_check_read+0x11/0x20 [ 28.894932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.894932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.894932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.894932][ T1] ? pointer+0x750/0x750 [ 28.894932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.894932][ T1] ? process_one_work+0x1790/0x1790 [ 28.894932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.894932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.894932][ T1] ? vsprintf+0x40/0x40 [ 28.894932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.894932][ T1] create_worker+0x25c/0x570 [ 28.894932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.894932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.894932][ T1] ? find_next_bit+0x107/0x130 [ 28.894932][ T1] workqueue_init+0x5cf/0x71e [ 28.894932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.894932][ T1] ? rest_init+0x37b/0x37b [ 28.894932][ T1] kernel_init+0x12/0x1c5 [ 28.894932][ T1] ret_from_fork+0x24/0x30 [ 28.894974][ T1] mmgrab (____ptrval____) to 4 [ 28.899896][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.904932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.904932][ T1] Call Trace: [ 28.904932][ T1] dump_stack+0x172/0x1f0 [ 28.904932][ T1] __schedule+0xd03/0x1580 [ 28.904932][ T1] ? __sched_text_start+0x8/0x8 [ 28.904932][ T1] schedule+0xa8/0x260 [ 28.904932][ T1] schedule_timeout+0x717/0xc50 [ 28.904932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.904932][ T1] ? find_held_lock+0x35/0x130 [ 28.904932][ T1] ? usleep_range+0x170/0x170 [ 28.904932][ T1] ? kasan_check_write+0x14/0x20 [ 28.904932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.904932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.904932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.904932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.904932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.904932][ T1] ? kasan_check_read+0x11/0x20 [ 28.904932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.904932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.904932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.904932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.904932][ T1] ? kasan_check_read+0x11/0x20 [ 28.904932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.904932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.904932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.904932][ T1] ? pointer+0x750/0x750 [ 28.904932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.904932][ T1] ? process_one_work+0x1790/0x1790 [ 28.904932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.904932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.904932][ T1] ? vsprintf+0x40/0x40 [ 28.904932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.904932][ T1] create_worker+0x25c/0x570 [ 28.904932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.904932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.904932][ T1] ? find_next_bit+0x107/0x130 [ 28.904932][ T1] workqueue_init+0x5cf/0x71e [ 28.904932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.904932][ T1] ? rest_init+0x37b/0x37b [ 28.904932][ T1] kernel_init+0x12/0x1c5 [ 28.904932][ T1] ret_from_fork+0x24/0x30 [ 28.904962][ T7] mmdrop (____ptrval____) before 4 [ 28.910078][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.914932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.914932][ T7] Call Trace: [ 28.914932][ T7] dump_stack+0x172/0x1f0 [ 28.914932][ T7] finish_task_switch+0x239/0x790 [ 28.914932][ T7] ? dump_stack+0x1de/0x1f0 [ 28.914932][ T7] __schedule+0x7d3/0x1580 [ 28.914932][ T7] ? __sched_text_start+0x8/0x8 [ 28.914932][ T7] ? ___preempt_schedule+0x16/0x18 [ 28.914932][ T7] schedule+0xa8/0x260 [ 28.914932][ T7] kthread+0x27a/0x420 [ 28.914932][ T7] ? process_one_work+0x1790/0x1790 [ 28.914932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.914932][ T7] ret_from_fork+0x24/0x30 [ 28.914996][ T7] mmgrab (____ptrval____) to 4 [ 28.919804][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 28.924932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.924932][ T7] Call Trace: [ 28.924932][ T7] dump_stack+0x172/0x1f0 [ 28.924932][ T7] __schedule+0xd03/0x1580 [ 28.924932][ T7] ? __sched_text_start+0x8/0x8 [ 28.924932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.924932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.924932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.924932][ T7] ? kthread_data+0x58/0xc0 [ 28.924932][ T7] schedule+0xa8/0x260 [ 28.924932][ T7] worker_thread+0x248/0xe40 [ 28.924932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 28.924932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 28.924932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 28.924932][ T7] kthread+0x354/0x420 [ 28.924932][ T7] ? process_one_work+0x1790/0x1790 [ 28.924932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.924932][ T7] ret_from_fork+0x24/0x30 [ 28.924963][ T1] mmdrop (____ptrval____) before 4 [ 28.930283][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.934932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.934932][ T1] Call Trace: [ 28.934932][ T1] dump_stack+0x172/0x1f0 [ 28.934932][ T1] finish_task_switch+0x239/0x790 [ 28.934932][ T1] ? dump_stack+0x1de/0x1f0 [ 28.934932][ T1] __schedule+0x7d3/0x1580 [ 28.934932][ T1] ? __sched_text_start+0x8/0x8 [ 28.934932][ T1] schedule+0xa8/0x260 [ 28.934932][ T1] schedule_timeout+0x717/0xc50 [ 28.934932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.934932][ T1] ? find_held_lock+0x35/0x130 [ 28.934932][ T1] ? usleep_range+0x170/0x170 [ 28.934932][ T1] ? kasan_check_write+0x14/0x20 [ 28.934932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.934932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 28.934932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.934932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 28.934932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 28.934932][ T1] ? kasan_check_read+0x11/0x20 [ 28.934932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 28.934932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.934932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 28.934932][ T1] ? wake_up_q+0xf0/0xf0 [ 28.934932][ T1] ? kasan_check_read+0x11/0x20 [ 28.934932][ T1] __kthread_create_on_node+0x289/0x460 [ 28.934932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.934932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.934932][ T1] ? pointer+0x750/0x750 [ 28.934932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.934932][ T1] ? process_one_work+0x1790/0x1790 [ 28.934932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.934932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.934932][ T1] ? vsprintf+0x40/0x40 [ 28.934932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.934932][ T1] create_worker+0x25c/0x570 [ 28.934932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.934932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.934932][ T1] ? find_next_bit+0x107/0x130 [ 28.934932][ T1] workqueue_init+0x5cf/0x71e [ 28.934932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.934932][ T1] ? rest_init+0x37b/0x37b [ 28.934932][ T1] kernel_init+0x12/0x1c5 [ 28.934932][ T1] ret_from_fork+0x24/0x30 [ 28.935085][ T1] mmgrab (____ptrval____) to 4 [ 28.939853][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.944932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.944932][ T1] Call Trace: [ 28.944932][ T1] dump_stack+0x172/0x1f0 [ 28.944932][ T1] __schedule+0xd03/0x1580 [ 28.944932][ T1] ? __sched_text_start+0x8/0x8 [ 28.944932][ T1] ? create_worker+0x3d4/0x570 [ 28.944932][ T1] ? preempt_schedule+0x4b/0x60 [ 28.944932][ T1] preempt_schedule_common+0x4f/0xe0 [ 28.944932][ T1] preempt_schedule+0x4b/0x60 [ 28.944932][ T1] ___preempt_schedule+0x16/0x18 [ 28.944932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 28.944932][ T1] create_worker+0x3d4/0x570 [ 28.944932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.944932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.944932][ T1] ? find_next_bit+0x107/0x130 [ 28.944932][ T1] workqueue_init+0x5cf/0x71e [ 28.944932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.944932][ T1] ? rest_init+0x37b/0x37b [ 28.944932][ T1] kernel_init+0x12/0x1c5 [ 28.944932][ T1] ret_from_fork+0x24/0x30 [ 28.944965][ T6] mmdrop (____ptrval____) before 4 [ 28.954981][ T6] CPU: 0 PID: 6 Comm: kworker/0:0H Not tainted 5.2.0-rc2+ #1 [ 28.962450][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.964932][ T6] Call Trace: [ 28.964932][ T6] dump_stack+0x172/0x1f0 [ 28.964932][ T6] finish_task_switch+0x239/0x790 [ 28.964932][ T6] ? dump_stack+0x1de/0x1f0 [ 28.964932][ T6] __schedule+0x7d3/0x1580 [ 28.964932][ T6] ? __sched_text_start+0x8/0x8 [ 28.964932][ T6] ? ___preempt_schedule+0x16/0x18 [ 28.964932][ T6] schedule+0xa8/0x260 [ 28.964932][ T6] kthread+0x27a/0x420 [ 28.964932][ T6] ? process_one_work+0x1790/0x1790 [ 28.964932][ T6] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.964932][ T6] ret_from_fork+0x24/0x30 [ 28.964990][ T6] mmgrab (____ptrval____) to 4 [ 28.969754][ T6] CPU: 0 PID: 6 Comm: kworker/0:0H Not tainted 5.2.0-rc2+ #1 [ 28.974932][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.974932][ T6] Call Trace: [ 28.974932][ T6] dump_stack+0x172/0x1f0 [ 28.974932][ T6] __schedule+0xd03/0x1580 [ 28.974932][ T6] ? __sched_text_start+0x8/0x8 [ 28.974932][ T6] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.974932][ T6] ? _raw_spin_unlock_irq+0x28/0x90 [ 28.974932][ T6] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.974932][ T6] ? kthread_data+0x58/0xc0 [ 28.974932][ T6] schedule+0xa8/0x260 [ 28.974932][ T6] worker_thread+0x248/0xe40 [ 28.974932][ T6] ? trace_hardirqs_on+0x67/0x220 [ 28.974932][ T6] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 28.974932][ T6] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 28.974932][ T6] kthread+0x354/0x420 [ 28.974932][ T6] ? process_one_work+0x1790/0x1790 [ 28.974932][ T6] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 28.974932][ T6] ret_from_fork+0x24/0x30 [ 28.974961][ T1] mmdrop (____ptrval____) before 4 [ 28.980457][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.984932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.984932][ T1] Call Trace: [ 28.984932][ T1] dump_stack+0x172/0x1f0 [ 28.984932][ T1] finish_task_switch+0x239/0x790 [ 28.984932][ T1] ? dump_stack+0x1de/0x1f0 [ 28.984932][ T1] __schedule+0x7d3/0x1580 [ 28.984932][ T1] ? __sched_text_start+0x8/0x8 [ 28.984932][ T1] ? create_worker+0x3d4/0x570 [ 28.984932][ T1] ? preempt_schedule+0x4b/0x60 [ 28.984932][ T1] preempt_schedule_common+0x4f/0xe0 [ 28.984932][ T1] preempt_schedule+0x4b/0x60 [ 28.984932][ T1] ___preempt_schedule+0x16/0x18 [ 28.984932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 28.984932][ T1] create_worker+0x3d4/0x570 [ 28.984932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.984932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.984932][ T1] ? find_next_bit+0x107/0x130 [ 28.984932][ T1] workqueue_init+0x5cf/0x71e [ 28.984932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.984932][ T1] ? rest_init+0x37b/0x37b [ 28.984932][ T1] kernel_init+0x12/0x1c5 [ 28.984932][ T1] ret_from_fork+0x24/0x30 [ 28.985120][ T1] mmgrab (____ptrval____) to 4 [ 28.990001][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 28.994932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.994932][ T1] Call Trace: [ 28.994932][ T1] dump_stack+0x172/0x1f0 [ 28.994932][ T1] __schedule+0xd03/0x1580 [ 28.994932][ T1] ? __sched_text_start+0x8/0x8 [ 28.994932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 28.994932][ T1] ? preempt_schedule+0x4b/0x60 [ 28.994932][ T1] preempt_schedule_common+0x4f/0xe0 [ 28.994932][ T1] preempt_schedule+0x4b/0x60 [ 28.994932][ T1] ___preempt_schedule+0x16/0x18 [ 28.994932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 28.994932][ T1] try_to_wake_up+0xc8/0x13f0 [ 28.994932][ T1] ? migrate_swap_stop+0x920/0x920 [ 28.994932][ T1] ? kasan_check_read+0x11/0x20 [ 28.994932][ T1] wake_up_process+0x10/0x20 [ 28.994932][ T1] __kthread_create_on_node+0x281/0x460 [ 28.994932][ T1] ? kthread_parkme+0xb0/0xb0 [ 28.994932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.994932][ T1] ? pointer+0x750/0x750 [ 28.994932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.994932][ T1] ? process_one_work+0x1790/0x1790 [ 28.994932][ T1] kthread_create_on_node+0xbb/0xf0 [ 28.994932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 28.994932][ T1] ? vsprintf+0x40/0x40 [ 28.994932][ T1] ? ___preempt_schedule+0x16/0x18 [ 28.994932][ T1] create_worker+0x25c/0x570 [ 28.994932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 28.994932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 28.994932][ T1] ? find_next_bit+0x107/0x130 [ 28.994932][ T1] workqueue_init+0x690/0x71e [ 28.994932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 28.994932][ T1] ? rest_init+0x37b/0x37b [ 28.994932][ T1] kernel_init+0x12/0x1c5 [ 28.994932][ T1] ret_from_fork+0x24/0x30 [ 28.994965][ T2] mmdrop (____ptrval____) before 4 [ 29.004975][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.011999][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.014932][ T2] Call Trace: [ 29.014932][ T2] dump_stack+0x172/0x1f0 [ 29.014932][ T2] finish_task_switch+0x239/0x790 [ 29.014932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.014932][ T2] __schedule+0x7d3/0x1580 [ 29.014932][ T2] ? __sched_text_start+0x8/0x8 [ 29.014932][ T2] schedule+0xa8/0x260 [ 29.014932][ T2] kthreadd+0x5cc/0x740 [ 29.014932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.014932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.014932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.014932][ T2] ret_from_fork+0x24/0x30 [ 29.014977][ T2] mmgrab (____ptrval____) to 4 [ 29.019784][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.024932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.024932][ T2] Call Trace: [ 29.024932][ T2] dump_stack+0x172/0x1f0 [ 29.024932][ T2] __schedule+0xd03/0x1580 [ 29.024932][ T2] ? __sched_text_start+0x8/0x8 [ 29.024932][ T2] schedule+0xa8/0x260 [ 29.024932][ T2] kthreadd+0x5cc/0x740 [ 29.024932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.024932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.024932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.024932][ T2] ret_from_fork+0x24/0x30 [ 29.024964][ T1] mmdrop (____ptrval____) before 4 [ 29.034973][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.042087][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.044932][ T1] Call Trace: [ 29.044932][ T1] dump_stack+0x172/0x1f0 [ 29.044932][ T1] finish_task_switch+0x239/0x790 [ 29.044932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.044932][ T1] __schedule+0x7d3/0x1580 [ 29.044932][ T1] ? __sched_text_start+0x8/0x8 [ 29.044932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.044932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.044932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.044932][ T1] preempt_schedule+0x4b/0x60 [ 29.044932][ T1] ___preempt_schedule+0x16/0x18 [ 29.044932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.044932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.044932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.044932][ T1] ? kasan_check_read+0x11/0x20 [ 29.044932][ T1] wake_up_process+0x10/0x20 [ 29.044932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.044932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.044932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.044932][ T1] ? pointer+0x750/0x750 [ 29.044932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.044932][ T1] ? process_one_work+0x1790/0x1790 [ 29.044932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.044932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.044932][ T1] ? vsprintf+0x40/0x40 [ 29.044932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.044932][ T1] create_worker+0x25c/0x570 [ 29.044932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.044932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.044932][ T1] ? find_next_bit+0x107/0x130 [ 29.044932][ T1] workqueue_init+0x690/0x71e [ 29.044932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.044932][ T1] ? rest_init+0x37b/0x37b [ 29.044932][ T1] kernel_init+0x12/0x1c5 [ 29.044932][ T1] ret_from_fork+0x24/0x30 [ 29.044982][ T1] mmgrab (____ptrval____) to 4 [ 29.049753][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.054932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.054932][ T1] Call Trace: [ 29.054932][ T1] dump_stack+0x172/0x1f0 [ 29.054932][ T1] __schedule+0xd03/0x1580 [ 29.054932][ T1] ? __sched_text_start+0x8/0x8 [ 29.054932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.054932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.054932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.054932][ T1] preempt_schedule+0x4b/0x60 [ 29.054932][ T1] ___preempt_schedule+0x16/0x18 [ 29.054932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.054932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.054932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.054932][ T1] ? kasan_check_read+0x11/0x20 [ 29.054932][ T1] wake_up_process+0x10/0x20 [ 29.054932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.054932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.054932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.054932][ T1] ? pointer+0x750/0x750 [ 29.054932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.054932][ T1] ? process_one_work+0x1790/0x1790 [ 29.054932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.054932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.054932][ T1] ? vsprintf+0x40/0x40 [ 29.054932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.054932][ T1] create_worker+0x25c/0x570 [ 29.054932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.054932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.054932][ T1] ? find_next_bit+0x107/0x130 [ 29.054932][ T1] workqueue_init+0x690/0x71e [ 29.054932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.054932][ T1] ? rest_init+0x37b/0x37b [ 29.054932][ T1] kernel_init+0x12/0x1c5 [ 29.054932][ T1] ret_from_fork+0x24/0x30 [ 29.054963][ T2] mmdrop (____ptrval____) before 4 [ 29.060092][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.064932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.064932][ T2] Call Trace: [ 29.064932][ T2] dump_stack+0x172/0x1f0 [ 29.064932][ T2] finish_task_switch+0x239/0x790 [ 29.064932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.064932][ T2] __schedule+0x7d3/0x1580 [ 29.064932][ T2] ? __sched_text_start+0x8/0x8 [ 29.064932][ T2] schedule+0xa8/0x260 [ 29.064932][ T2] kthreadd+0x5cc/0x740 [ 29.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.064932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.064932][ T2] ret_from_fork+0x24/0x30 [ 29.064985][ T2] mmgrab (____ptrval____) to 4 [ 29.069843][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.074932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.074932][ T2] Call Trace: [ 29.074932][ T2] dump_stack+0x172/0x1f0 [ 29.074932][ T2] __schedule+0xd03/0x1580 [ 29.074932][ T2] ? __sched_text_start+0x8/0x8 [ 29.074932][ T2] schedule+0xa8/0x260 [ 29.074932][ T2] kthreadd+0x5cc/0x740 [ 29.074932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.074932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.074932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.074932][ T2] ret_from_fork+0x24/0x30 [ 29.074967][ T1] mmdrop (____ptrval____) before 4 [ 29.084977][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.092205][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.094932][ T1] Call Trace: [ 29.094932][ T1] dump_stack+0x172/0x1f0 [ 29.094932][ T1] finish_task_switch+0x239/0x790 [ 29.094932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.094932][ T1] __schedule+0x7d3/0x1580 [ 29.094932][ T1] ? __sched_text_start+0x8/0x8 [ 29.094932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.094932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.094932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.094932][ T1] preempt_schedule+0x4b/0x60 [ 29.094932][ T1] ___preempt_schedule+0x16/0x18 [ 29.094932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.094932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.094932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.094932][ T1] ? kasan_check_read+0x11/0x20 [ 29.094932][ T1] wake_up_process+0x10/0x20 [ 29.094932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.094932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.094932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.094932][ T1] ? pointer+0x750/0x750 [ 29.094932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.094932][ T1] ? process_one_work+0x1790/0x1790 [ 29.094932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.094932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.094932][ T1] ? vsprintf+0x40/0x40 [ 29.094932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.094932][ T1] create_worker+0x25c/0x570 [ 29.094932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.094932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.094932][ T1] ? find_next_bit+0x107/0x130 [ 29.094932][ T1] workqueue_init+0x690/0x71e [ 29.094932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.094932][ T1] ? rest_init+0x37b/0x37b [ 29.094932][ T1] kernel_init+0x12/0x1c5 [ 29.094932][ T1] ret_from_fork+0x24/0x30 [ 29.094976][ T1] mmgrab (____ptrval____) to 4 [ 29.099949][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.104932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.104932][ T1] Call Trace: [ 29.104932][ T1] dump_stack+0x172/0x1f0 [ 29.104932][ T1] __schedule+0xd03/0x1580 [ 29.104932][ T1] ? __sched_text_start+0x8/0x8 [ 29.104932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.104932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.104932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.104932][ T1] preempt_schedule+0x4b/0x60 [ 29.104932][ T1] ___preempt_schedule+0x16/0x18 [ 29.104932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.104932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.104932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.104932][ T1] ? kasan_check_read+0x11/0x20 [ 29.104932][ T1] wake_up_process+0x10/0x20 [ 29.104932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.104932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.104932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.104932][ T1] ? pointer+0x750/0x750 [ 29.104932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.104932][ T1] ? process_one_work+0x1790/0x1790 [ 29.104932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.104932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.104932][ T1] ? vsprintf+0x40/0x40 [ 29.104932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.104932][ T1] create_worker+0x25c/0x570 [ 29.104932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.104932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.104932][ T1] ? find_next_bit+0x107/0x130 [ 29.104932][ T1] workqueue_init+0x690/0x71e [ 29.104932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.104932][ T1] ? rest_init+0x37b/0x37b [ 29.104932][ T1] kernel_init+0x12/0x1c5 [ 29.104932][ T1] ret_from_fork+0x24/0x30 [ 29.104961][ T2] mmdrop (____ptrval____) before 4 [ 29.110073][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.114932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.114932][ T2] Call Trace: [ 29.114932][ T2] dump_stack+0x172/0x1f0 [ 29.114932][ T2] finish_task_switch+0x239/0x790 [ 29.114932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.114932][ T2] __schedule+0x7d3/0x1580 [ 29.114932][ T2] ? __sched_text_start+0x8/0x8 [ 29.114932][ T2] schedule+0xa8/0x260 [ 29.114932][ T2] kthreadd+0x5cc/0x740 [ 29.114932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.114932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.114932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.114932][ T2] ret_from_fork+0x24/0x30 [ 29.114977][ T2] mmgrab (____ptrval____) to 4 [ 29.119803][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.124932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.124932][ T2] Call Trace: [ 29.124932][ T2] dump_stack+0x172/0x1f0 [ 29.124932][ T2] __schedule+0xd03/0x1580 [ 29.124932][ T2] ? __sched_text_start+0x8/0x8 [ 29.124932][ T2] schedule+0xa8/0x260 [ 29.124932][ T2] kthreadd+0x5cc/0x740 [ 29.124932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.124932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.124932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.124932][ T2] ret_from_fork+0x24/0x30 [ 29.124965][ T1] mmdrop (____ptrval____) before 4 [ 29.130076][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.134932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.134932][ T1] Call Trace: [ 29.134932][ T1] dump_stack+0x172/0x1f0 [ 29.134932][ T1] finish_task_switch+0x239/0x790 [ 29.134932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.134932][ T1] __schedule+0x7d3/0x1580 [ 29.134932][ T1] ? __sched_text_start+0x8/0x8 [ 29.134932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.134932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.134932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.134932][ T1] preempt_schedule+0x4b/0x60 [ 29.134932][ T1] ___preempt_schedule+0x16/0x18 [ 29.134932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.134932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.134932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.134932][ T1] ? kasan_check_read+0x11/0x20 [ 29.134932][ T1] wake_up_process+0x10/0x20 [ 29.134932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.134932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.134932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.134932][ T1] ? pointer+0x750/0x750 [ 29.134932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.134932][ T1] ? process_one_work+0x1790/0x1790 [ 29.134932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.134932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.134932][ T1] ? vsprintf+0x40/0x40 [ 29.134932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.134932][ T1] create_worker+0x25c/0x570 [ 29.134932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.134932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.134932][ T1] ? find_next_bit+0x107/0x130 [ 29.134932][ T1] workqueue_init+0x690/0x71e [ 29.134932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.134932][ T1] ? rest_init+0x37b/0x37b [ 29.134932][ T1] kernel_init+0x12/0x1c5 [ 29.134932][ T1] ret_from_fork+0x24/0x30 [ 29.134972][ T1] mmgrab (____ptrval____) to 4 [ 29.139727][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.144932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.144932][ T1] Call Trace: [ 29.144932][ T1] dump_stack+0x172/0x1f0 [ 29.144932][ T1] __schedule+0xd03/0x1580 [ 29.144932][ T1] ? __sched_text_start+0x8/0x8 [ 29.144932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.144932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.144932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.144932][ T1] preempt_schedule+0x4b/0x60 [ 29.144932][ T1] ___preempt_schedule+0x16/0x18 [ 29.144932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.144932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.144932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.144932][ T1] ? kasan_check_read+0x11/0x20 [ 29.144932][ T1] wake_up_process+0x10/0x20 [ 29.144932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.144932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.144932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.144932][ T1] ? pointer+0x750/0x750 [ 29.144932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.144932][ T1] ? process_one_work+0x1790/0x1790 [ 29.144932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.144932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.144932][ T1] ? vsprintf+0x40/0x40 [ 29.144932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.144932][ T1] create_worker+0x25c/0x570 [ 29.144932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.144932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.144932][ T1] ? find_next_bit+0x107/0x130 [ 29.144932][ T1] workqueue_init+0x690/0x71e [ 29.144932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.144932][ T1] ? rest_init+0x37b/0x37b [ 29.144932][ T1] kernel_init+0x12/0x1c5 [ 29.144932][ T1] ret_from_fork+0x24/0x30 [ 29.144963][ T2] mmdrop (____ptrval____) before 4 [ 29.150252][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.154932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.154932][ T2] Call Trace: [ 29.154932][ T2] dump_stack+0x172/0x1f0 [ 29.154932][ T2] finish_task_switch+0x239/0x790 [ 29.154932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.154932][ T2] __schedule+0x7d3/0x1580 [ 29.154932][ T2] ? __sched_text_start+0x8/0x8 [ 29.154932][ T2] schedule+0xa8/0x260 [ 29.154932][ T2] kthreadd+0x5cc/0x740 [ 29.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.154932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.154932][ T2] ret_from_fork+0x24/0x30 [ 29.154976][ T2] mmgrab (____ptrval____) to 4 [ 29.159756][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.164932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.164932][ T2] Call Trace: [ 29.164932][ T2] dump_stack+0x172/0x1f0 [ 29.164932][ T2] __schedule+0xd03/0x1580 [ 29.164932][ T2] ? __sched_text_start+0x8/0x8 [ 29.164932][ T2] schedule+0xa8/0x260 [ 29.164932][ T2] kthreadd+0x5cc/0x740 [ 29.164932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.164932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.164932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.164932][ T2] ret_from_fork+0x24/0x30 [ 29.164964][ T1] mmdrop (____ptrval____) before 4 [ 29.170202][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.174932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.174932][ T1] Call Trace: [ 29.174932][ T1] dump_stack+0x172/0x1f0 [ 29.174932][ T1] finish_task_switch+0x239/0x790 [ 29.174932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.174932][ T1] __schedule+0x7d3/0x1580 [ 29.174932][ T1] ? __sched_text_start+0x8/0x8 [ 29.174932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.174932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.174932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.174932][ T1] preempt_schedule+0x4b/0x60 [ 29.174932][ T1] ___preempt_schedule+0x16/0x18 [ 29.174932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.174932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.174932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.174932][ T1] ? kasan_check_read+0x11/0x20 [ 29.174932][ T1] wake_up_process+0x10/0x20 [ 29.174932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.174932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.174932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.174932][ T1] ? pointer+0x750/0x750 [ 29.174932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.174932][ T1] ? process_one_work+0x1790/0x1790 [ 29.174932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.174932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.174932][ T1] ? vsprintf+0x40/0x40 [ 29.174932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.174932][ T1] create_worker+0x25c/0x570 [ 29.174932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.174932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.174932][ T1] ? find_next_bit+0x107/0x130 [ 29.174932][ T1] workqueue_init+0x690/0x71e [ 29.174932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.174932][ T1] ? rest_init+0x37b/0x37b [ 29.174932][ T1] kernel_init+0x12/0x1c5 [ 29.174932][ T1] ret_from_fork+0x24/0x30 [ 29.174975][ T1] mmgrab (____ptrval____) to 4 [ 29.179745][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.184932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.184932][ T1] Call Trace: [ 29.184932][ T1] dump_stack+0x172/0x1f0 [ 29.184932][ T1] __schedule+0xd03/0x1580 [ 29.184932][ T1] ? __sched_text_start+0x8/0x8 [ 29.184932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.184932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.184932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.184932][ T1] preempt_schedule+0x4b/0x60 [ 29.184932][ T1] ___preempt_schedule+0x16/0x18 [ 29.184932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.184932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.184932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.184932][ T1] ? kasan_check_read+0x11/0x20 [ 29.184932][ T1] wake_up_process+0x10/0x20 [ 29.184932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.184932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.184932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.184932][ T1] ? pointer+0x750/0x750 [ 29.184932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.184932][ T1] ? process_one_work+0x1790/0x1790 [ 29.184932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.184932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.184932][ T1] ? vsprintf+0x40/0x40 [ 29.184932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.184932][ T1] create_worker+0x25c/0x570 [ 29.184932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.184932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.184932][ T1] ? find_next_bit+0x107/0x130 [ 29.184932][ T1] workqueue_init+0x690/0x71e [ 29.184932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.184932][ T1] ? rest_init+0x37b/0x37b [ 29.184932][ T1] kernel_init+0x12/0x1c5 [ 29.184932][ T1] ret_from_fork+0x24/0x30 [ 29.184963][ T2] mmdrop (____ptrval____) before 4 [ 29.194970][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.201998][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.204932][ T2] Call Trace: [ 29.204932][ T2] dump_stack+0x172/0x1f0 [ 29.204932][ T2] finish_task_switch+0x239/0x790 [ 29.204932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.204932][ T2] __schedule+0x7d3/0x1580 [ 29.204932][ T2] ? __sched_text_start+0x8/0x8 [ 29.204932][ T2] schedule+0xa8/0x260 [ 29.204932][ T2] kthreadd+0x5cc/0x740 [ 29.204932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.204932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.204932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.204932][ T2] ret_from_fork+0x24/0x30 [ 29.204976][ T2] mmgrab (____ptrval____) to 4 [ 29.209856][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.214932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.214932][ T2] Call Trace: [ 29.214932][ T2] dump_stack+0x172/0x1f0 [ 29.214932][ T2] __schedule+0xd03/0x1580 [ 29.214932][ T2] ? __sched_text_start+0x8/0x8 [ 29.214932][ T2] schedule+0xa8/0x260 [ 29.214932][ T2] kthreadd+0x5cc/0x740 [ 29.214932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.214932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.214932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.214932][ T2] ret_from_fork+0x24/0x30 [ 29.214967][ T1] mmdrop (____ptrval____) before 4 [ 29.224968][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.232257][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.234932][ T1] Call Trace: [ 29.234932][ T1] dump_stack+0x172/0x1f0 [ 29.234932][ T1] finish_task_switch+0x239/0x790 [ 29.234932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.234932][ T1] __schedule+0x7d3/0x1580 [ 29.234932][ T1] ? __sched_text_start+0x8/0x8 [ 29.234932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.234932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.234932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.234932][ T1] preempt_schedule+0x4b/0x60 [ 29.234932][ T1] ___preempt_schedule+0x16/0x18 [ 29.234932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.234932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.234932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.234932][ T1] ? kasan_check_read+0x11/0x20 [ 29.234932][ T1] wake_up_process+0x10/0x20 [ 29.234932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.234932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.234932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.234932][ T1] ? pointer+0x750/0x750 [ 29.234932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.234932][ T1] ? process_one_work+0x1790/0x1790 [ 29.234932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.234932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.234932][ T1] ? vsprintf+0x40/0x40 [ 29.234932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.234932][ T1] create_worker+0x25c/0x570 [ 29.234932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.234932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.234932][ T1] ? find_next_bit+0x107/0x130 [ 29.234932][ T1] workqueue_init+0x690/0x71e [ 29.234932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.234932][ T1] ? rest_init+0x37b/0x37b [ 29.234932][ T1] kernel_init+0x12/0x1c5 [ 29.234932][ T1] ret_from_fork+0x24/0x30 [ 29.235000][ T1] mmgrab (____ptrval____) to 4 [ 29.239761][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.244932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.244932][ T1] Call Trace: [ 29.244932][ T1] dump_stack+0x172/0x1f0 [ 29.244932][ T1] __schedule+0xd03/0x1580 [ 29.244932][ T1] ? __sched_text_start+0x8/0x8 [ 29.244932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.244932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.244932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.244932][ T1] preempt_schedule+0x4b/0x60 [ 29.244932][ T1] ___preempt_schedule+0x16/0x18 [ 29.244932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.244932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.244932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.244932][ T1] ? kasan_check_read+0x11/0x20 [ 29.244932][ T1] wake_up_process+0x10/0x20 [ 29.244932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.244932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.244932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.244932][ T1] ? pointer+0x750/0x750 [ 29.244932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.244932][ T1] ? process_one_work+0x1790/0x1790 [ 29.244932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.244932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.244932][ T1] ? vsprintf+0x40/0x40 [ 29.244932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.244932][ T1] create_worker+0x25c/0x570 [ 29.244932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.244932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.244932][ T1] ? find_next_bit+0x107/0x130 [ 29.244932][ T1] workqueue_init+0x690/0x71e [ 29.244932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.244932][ T1] ? rest_init+0x37b/0x37b [ 29.244932][ T1] kernel_init+0x12/0x1c5 [ 29.244932][ T1] ret_from_fork+0x24/0x30 [ 29.244972][ T2] mmdrop (____ptrval____) before 4 [ 29.250170][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.254932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.254932][ T2] Call Trace: [ 29.254932][ T2] dump_stack+0x172/0x1f0 [ 29.254932][ T2] finish_task_switch+0x239/0x790 [ 29.254932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.254932][ T2] __schedule+0x7d3/0x1580 [ 29.254932][ T2] ? __sched_text_start+0x8/0x8 [ 29.254932][ T2] schedule+0xa8/0x260 [ 29.254932][ T2] kthreadd+0x5cc/0x740 [ 29.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.254932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.254932][ T2] ret_from_fork+0x24/0x30 [ 29.255078][ T2] mmgrab (____ptrval____) to 4 [ 29.260127][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.264932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.264932][ T2] Call Trace: [ 29.264932][ T2] dump_stack+0x172/0x1f0 [ 29.264932][ T2] __schedule+0xd03/0x1580 [ 29.264932][ T2] ? __sched_text_start+0x8/0x8 [ 29.264932][ T2] schedule+0xa8/0x260 [ 29.264932][ T2] kthreadd+0x5cc/0x740 [ 29.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.264932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.264932][ T2] ret_from_fork+0x24/0x30 [ 29.264961][ T7] mmdrop (____ptrval____) before 4 [ 29.274968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.283249][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.284932][ T7] Call Trace: [ 29.284932][ T7] dump_stack+0x172/0x1f0 [ 29.284932][ T7] finish_task_switch+0x239/0x790 [ 29.284932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.284932][ T7] __schedule+0x7d3/0x1580 [ 29.284932][ T7] ? __sched_text_start+0x8/0x8 [ 29.284932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.284932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.284932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.284932][ T7] ? kthread_data+0x58/0xc0 [ 29.284932][ T7] schedule+0xa8/0x260 [ 29.284932][ T7] worker_thread+0x248/0xe40 [ 29.284932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.284932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.284932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.284932][ T7] kthread+0x354/0x420 [ 29.284932][ T7] ? process_one_work+0x1790/0x1790 [ 29.284932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.284932][ T7] ret_from_fork+0x24/0x30 [ 29.285001][ T7] mmgrab (____ptrval____) to 4 [ 29.289799][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.294932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.294932][ T7] Call Trace: [ 29.294932][ T7] dump_stack+0x172/0x1f0 [ 29.294932][ T7] __schedule+0xd03/0x1580 [ 29.294932][ T7] ? __sched_text_start+0x8/0x8 [ 29.294932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.294932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.294932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.294932][ T7] ? kthread_data+0x58/0xc0 [ 29.294932][ T7] schedule+0xa8/0x260 [ 29.294932][ T7] worker_thread+0x248/0xe40 [ 29.294932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.294932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.294932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.294932][ T7] kthread+0x354/0x420 [ 29.294932][ T7] ? process_one_work+0x1790/0x1790 [ 29.294932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.294932][ T7] ret_from_fork+0x24/0x30 [ 29.294960][ T1] mmdrop (____ptrval____) before 4 [ 29.300185][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.304932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.304932][ T1] Call Trace: [ 29.304932][ T1] dump_stack+0x172/0x1f0 [ 29.304932][ T1] finish_task_switch+0x239/0x790 [ 29.304932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.304932][ T1] __schedule+0x7d3/0x1580 [ 29.304932][ T1] ? __sched_text_start+0x8/0x8 [ 29.304932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.304932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.304932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.304932][ T1] preempt_schedule+0x4b/0x60 [ 29.304932][ T1] ___preempt_schedule+0x16/0x18 [ 29.304932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.304932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.304932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.304932][ T1] ? kasan_check_read+0x11/0x20 [ 29.304932][ T1] wake_up_process+0x10/0x20 [ 29.304932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.304932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.304932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.304932][ T1] ? pointer+0x750/0x750 [ 29.304932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.304932][ T1] ? process_one_work+0x1790/0x1790 [ 29.304932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.304932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.304932][ T1] ? vsprintf+0x40/0x40 [ 29.304932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.304932][ T1] create_worker+0x25c/0x570 [ 29.304932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.304932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.304932][ T1] ? find_next_bit+0x107/0x130 [ 29.304932][ T1] workqueue_init+0x690/0x71e [ 29.304932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.304932][ T1] ? rest_init+0x37b/0x37b [ 29.304932][ T1] kernel_init+0x12/0x1c5 [ 29.304932][ T1] ret_from_fork+0x24/0x30 [ 29.304973][ T1] mmgrab (____ptrval____) to 4 [ 29.310245][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.314932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.314932][ T1] Call Trace: [ 29.314932][ T1] dump_stack+0x172/0x1f0 [ 29.314932][ T1] __schedule+0xd03/0x1580 [ 29.314932][ T1] ? __sched_text_start+0x8/0x8 [ 29.314932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.314932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.314932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.314932][ T1] preempt_schedule+0x4b/0x60 [ 29.314932][ T1] ___preempt_schedule+0x16/0x18 [ 29.314932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.314932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.314932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.314932][ T1] ? kasan_check_read+0x11/0x20 [ 29.314932][ T1] wake_up_process+0x10/0x20 [ 29.314932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.314932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.314932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.314932][ T1] ? pointer+0x750/0x750 [ 29.314932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.314932][ T1] ? process_one_work+0x1790/0x1790 [ 29.314932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.314932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.314932][ T1] ? vsprintf+0x40/0x40 [ 29.314932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.314932][ T1] create_worker+0x25c/0x570 [ 29.314932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.314932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.314932][ T1] ? find_next_bit+0x107/0x130 [ 29.314932][ T1] workqueue_init+0x690/0x71e [ 29.314932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.314932][ T1] ? rest_init+0x37b/0x37b [ 29.314932][ T1] kernel_init+0x12/0x1c5 [ 29.314932][ T1] ret_from_fork+0x24/0x30 [ 29.314966][ T2] mmdrop (____ptrval____) before 4 [ 29.320390][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.324932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.324932][ T2] Call Trace: [ 29.324932][ T2] dump_stack+0x172/0x1f0 [ 29.324932][ T2] finish_task_switch+0x239/0x790 [ 29.324932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.324932][ T2] __schedule+0x7d3/0x1580 [ 29.324932][ T2] ? __sched_text_start+0x8/0x8 [ 29.324932][ T2] schedule+0xa8/0x260 [ 29.324932][ T2] kthreadd+0x5cc/0x740 [ 29.324932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.324932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.324932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.324932][ T2] ret_from_fork+0x24/0x30 [ 29.324974][ T2] mmgrab (____ptrval____) to 4 [ 29.329843][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.334932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.334932][ T2] Call Trace: [ 29.334932][ T2] dump_stack+0x172/0x1f0 [ 29.334932][ T2] __schedule+0xd03/0x1580 [ 29.334932][ T2] ? __sched_text_start+0x8/0x8 [ 29.334932][ T2] schedule+0xa8/0x260 [ 29.334932][ T2] kthreadd+0x5cc/0x740 [ 29.334932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.334932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.334932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.334932][ T2] ret_from_fork+0x24/0x30 [ 29.334962][ T1] mmdrop (____ptrval____) before 4 [ 29.344971][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.352290][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.354932][ T1] Call Trace: [ 29.354932][ T1] dump_stack+0x172/0x1f0 [ 29.354932][ T1] finish_task_switch+0x239/0x790 [ 29.354932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.354932][ T1] __schedule+0x7d3/0x1580 [ 29.354932][ T1] ? __sched_text_start+0x8/0x8 [ 29.354932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.354932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.354932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.354932][ T1] preempt_schedule+0x4b/0x60 [ 29.354932][ T1] ___preempt_schedule+0x16/0x18 [ 29.354932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.354932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.354932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.354932][ T1] ? kasan_check_read+0x11/0x20 [ 29.354932][ T1] wake_up_process+0x10/0x20 [ 29.354932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.354932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.354932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.354932][ T1] ? pointer+0x750/0x750 [ 29.354932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.354932][ T1] ? process_one_work+0x1790/0x1790 [ 29.354932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.354932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.354932][ T1] ? vsprintf+0x40/0x40 [ 29.354932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.354932][ T1] create_worker+0x25c/0x570 [ 29.354932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.354932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.354932][ T1] ? find_next_bit+0x107/0x130 [ 29.354932][ T1] workqueue_init+0x690/0x71e [ 29.354932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.354932][ T1] ? rest_init+0x37b/0x37b [ 29.354932][ T1] kernel_init+0x12/0x1c5 [ 29.354932][ T1] ret_from_fork+0x24/0x30 [ 29.354980][ T1] mmgrab (____ptrval____) to 4 [ 29.359904][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.364932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.364932][ T1] Call Trace: [ 29.364932][ T1] dump_stack+0x172/0x1f0 [ 29.364932][ T1] __schedule+0xd03/0x1580 [ 29.364932][ T1] ? __sched_text_start+0x8/0x8 [ 29.364932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.364932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.364932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.364932][ T1] preempt_schedule+0x4b/0x60 [ 29.364932][ T1] ___preempt_schedule+0x16/0x18 [ 29.364932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.364932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.364932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.364932][ T1] ? kasan_check_read+0x11/0x20 [ 29.364932][ T1] wake_up_process+0x10/0x20 [ 29.364932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.364932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.364932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.364932][ T1] ? pointer+0x750/0x750 [ 29.364932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.364932][ T1] ? process_one_work+0x1790/0x1790 [ 29.364932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.364932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.364932][ T1] ? vsprintf+0x40/0x40 [ 29.364932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.364932][ T1] create_worker+0x25c/0x570 [ 29.364932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.364932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.364932][ T1] ? find_next_bit+0x107/0x130 [ 29.364932][ T1] workqueue_init+0x690/0x71e [ 29.364932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.364932][ T1] ? rest_init+0x37b/0x37b [ 29.364932][ T1] kernel_init+0x12/0x1c5 [ 29.364932][ T1] ret_from_fork+0x24/0x30 [ 29.364961][ T7] mmdrop (____ptrval____) before 4 [ 29.370181][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.374932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.374932][ T7] Call Trace: [ 29.374932][ T7] dump_stack+0x172/0x1f0 [ 29.374932][ T7] finish_task_switch+0x239/0x790 [ 29.374932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.374932][ T7] __schedule+0x7d3/0x1580 [ 29.374932][ T7] ? __sched_text_start+0x8/0x8 [ 29.374932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.374932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.374932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.374932][ T7] ? kthread_data+0x58/0xc0 [ 29.374932][ T7] schedule+0xa8/0x260 [ 29.374932][ T7] worker_thread+0x248/0xe40 [ 29.374932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.374932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.374932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.374932][ T7] kthread+0x354/0x420 [ 29.374932][ T7] ? process_one_work+0x1790/0x1790 [ 29.374932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.374932][ T7] ret_from_fork+0x24/0x30 [ 29.374973][ T7] mmgrab (____ptrval____) to 4 [ 29.379868][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.384932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.384932][ T7] Call Trace: [ 29.384932][ T7] dump_stack+0x172/0x1f0 [ 29.384932][ T7] __schedule+0xd03/0x1580 [ 29.384932][ T7] ? __sched_text_start+0x8/0x8 [ 29.384932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.384932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.384932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.384932][ T7] ? kthread_data+0x58/0xc0 [ 29.384932][ T7] schedule+0xa8/0x260 [ 29.384932][ T7] worker_thread+0x248/0xe40 [ 29.384932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.384932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.384932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.384932][ T7] kthread+0x354/0x420 [ 29.384932][ T7] ? process_one_work+0x1790/0x1790 [ 29.384932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.384932][ T7] ret_from_fork+0x24/0x30 [ 29.384965][ T2] mmdrop (____ptrval____) before 4 [ 29.391368][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.394932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.394932][ T2] Call Trace: [ 29.394932][ T2] dump_stack+0x172/0x1f0 [ 29.394932][ T2] finish_task_switch+0x239/0x790 [ 29.394932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.394932][ T2] __schedule+0x7d3/0x1580 [ 29.394932][ T2] ? __sched_text_start+0x8/0x8 [ 29.394932][ T2] schedule+0xa8/0x260 [ 29.394932][ T2] kthreadd+0x5cc/0x740 [ 29.394932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.394932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.394932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.394932][ T2] ret_from_fork+0x24/0x30 [ 29.394978][ T2] mmgrab (____ptrval____) to 4 [ 29.400462][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.404932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.404932][ T2] Call Trace: [ 29.404932][ T2] dump_stack+0x172/0x1f0 [ 29.404932][ T2] __schedule+0xd03/0x1580 [ 29.404932][ T2] ? __sched_text_start+0x8/0x8 [ 29.404932][ T2] schedule+0xa8/0x260 [ 29.404932][ T2] kthreadd+0x5cc/0x740 [ 29.404932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.404932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.404932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.404932][ T2] ret_from_fork+0x24/0x30 [ 29.404961][ T7] mmdrop (____ptrval____) before 4 [ 29.410370][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.414932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.414932][ T7] Call Trace: [ 29.414932][ T7] dump_stack+0x172/0x1f0 [ 29.414932][ T7] finish_task_switch+0x239/0x790 [ 29.414932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.414932][ T7] __schedule+0x7d3/0x1580 [ 29.414932][ T7] ? __sched_text_start+0x8/0x8 [ 29.414932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.414932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.414932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.414932][ T7] ? kthread_data+0x58/0xc0 [ 29.414932][ T7] schedule+0xa8/0x260 [ 29.414932][ T7] worker_thread+0x248/0xe40 [ 29.414932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.414932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.414932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.414932][ T7] kthread+0x354/0x420 [ 29.414932][ T7] ? process_one_work+0x1790/0x1790 [ 29.414932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.414932][ T7] ret_from_fork+0x24/0x30 [ 29.414973][ T7] mmgrab (____ptrval____) to 4 [ 29.419737][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.424932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.424932][ T7] Call Trace: [ 29.424932][ T7] dump_stack+0x172/0x1f0 [ 29.424932][ T7] __schedule+0xd03/0x1580 [ 29.424932][ T7] ? __sched_text_start+0x8/0x8 [ 29.424932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.424932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.424932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.424932][ T7] ? kthread_data+0x58/0xc0 [ 29.424932][ T7] schedule+0xa8/0x260 [ 29.424932][ T7] worker_thread+0x248/0xe40 [ 29.424932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.424932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.424932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.424932][ T7] kthread+0x354/0x420 [ 29.424932][ T7] ? process_one_work+0x1790/0x1790 [ 29.424932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.424932][ T7] ret_from_fork+0x24/0x30 [ 29.424962][ T1] mmdrop (____ptrval____) before 4 [ 29.430118][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.434932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.434932][ T1] Call Trace: [ 29.434932][ T1] dump_stack+0x172/0x1f0 [ 29.434932][ T1] finish_task_switch+0x239/0x790 [ 29.434932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.434932][ T1] __schedule+0x7d3/0x1580 [ 29.434932][ T1] ? __sched_text_start+0x8/0x8 [ 29.434932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.434932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.434932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.434932][ T1] preempt_schedule+0x4b/0x60 [ 29.434932][ T1] ___preempt_schedule+0x16/0x18 [ 29.434932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.434932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.434932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.434932][ T1] ? kasan_check_read+0x11/0x20 [ 29.434932][ T1] wake_up_process+0x10/0x20 [ 29.434932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.434932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.434932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.434932][ T1] ? pointer+0x750/0x750 [ 29.434932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.434932][ T1] ? process_one_work+0x1790/0x1790 [ 29.434932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.434932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.434932][ T1] ? vsprintf+0x40/0x40 [ 29.434932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.434932][ T1] create_worker+0x25c/0x570 [ 29.434932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.434932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.434932][ T1] ? find_next_bit+0x107/0x130 [ 29.434932][ T1] workqueue_init+0x690/0x71e [ 29.434932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.434932][ T1] ? rest_init+0x37b/0x37b [ 29.434932][ T1] kernel_init+0x12/0x1c5 [ 29.434932][ T1] ret_from_fork+0x24/0x30 [ 29.434974][ T1] mmgrab (____ptrval____) to 4 [ 29.439761][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.444932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.444932][ T1] Call Trace: [ 29.444932][ T1] dump_stack+0x172/0x1f0 [ 29.444932][ T1] __schedule+0xd03/0x1580 [ 29.444932][ T1] ? __sched_text_start+0x8/0x8 [ 29.444932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.444932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.444932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.444932][ T1] preempt_schedule+0x4b/0x60 [ 29.444932][ T1] ___preempt_schedule+0x16/0x18 [ 29.444932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.444932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.444932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.444932][ T1] ? kasan_check_read+0x11/0x20 [ 29.444932][ T1] wake_up_process+0x10/0x20 [ 29.444932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.444932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.444932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.444932][ T1] ? pointer+0x750/0x750 [ 29.444932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.444932][ T1] ? process_one_work+0x1790/0x1790 [ 29.444932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.444932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.444932][ T1] ? vsprintf+0x40/0x40 [ 29.444932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.444932][ T1] create_worker+0x25c/0x570 [ 29.444932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.444932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.444932][ T1] ? find_next_bit+0x107/0x130 [ 29.444932][ T1] workqueue_init+0x690/0x71e [ 29.444932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.444932][ T1] ? rest_init+0x37b/0x37b [ 29.444932][ T1] kernel_init+0x12/0x1c5 [ 29.444932][ T1] ret_from_fork+0x24/0x30 [ 29.444964][ T2] mmdrop (____ptrval____) before 4 [ 29.450286][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.454932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.454932][ T2] Call Trace: [ 29.454932][ T2] dump_stack+0x172/0x1f0 [ 29.454932][ T2] finish_task_switch+0x239/0x790 [ 29.454932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.454932][ T2] __schedule+0x7d3/0x1580 [ 29.454932][ T2] ? __sched_text_start+0x8/0x8 [ 29.454932][ T2] schedule+0xa8/0x260 [ 29.454932][ T2] kthreadd+0x5cc/0x740 [ 29.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.454932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.454932][ T2] ret_from_fork+0x24/0x30 [ 29.454973][ T2] mmgrab (____ptrval____) to 4 [ 29.459858][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.464932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.464932][ T2] Call Trace: [ 29.464932][ T2] dump_stack+0x172/0x1f0 [ 29.464932][ T2] __schedule+0xd03/0x1580 [ 29.464932][ T2] ? __sched_text_start+0x8/0x8 [ 29.464932][ T2] schedule+0xa8/0x260 [ 29.464932][ T2] kthreadd+0x5cc/0x740 [ 29.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.464932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.464932][ T2] ret_from_fork+0x24/0x30 [ 29.464960][ T7] mmdrop (____ptrval____) before 4 [ 29.474968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.482390][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.484932][ T7] Call Trace: [ 29.484932][ T7] dump_stack+0x172/0x1f0 [ 29.484932][ T7] finish_task_switch+0x239/0x790 [ 29.484932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.484932][ T7] __schedule+0x7d3/0x1580 [ 29.484932][ T7] ? __sched_text_start+0x8/0x8 [ 29.484932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.484932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.484932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.484932][ T7] ? kthread_data+0x58/0xc0 [ 29.484932][ T7] schedule+0xa8/0x260 [ 29.484932][ T7] worker_thread+0x248/0xe40 [ 29.484932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.484932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.484932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.484932][ T7] kthread+0x354/0x420 [ 29.484932][ T7] ? process_one_work+0x1790/0x1790 [ 29.484932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.484932][ T7] ret_from_fork+0x24/0x30 [ 29.484976][ T7] mmgrab (____ptrval____) to 4 [ 29.490358][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.494932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.494932][ T7] Call Trace: [ 29.494932][ T7] dump_stack+0x172/0x1f0 [ 29.494932][ T7] __schedule+0xd03/0x1580 [ 29.494932][ T7] ? __sched_text_start+0x8/0x8 [ 29.494932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.494932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.494932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.494932][ T7] ? kthread_data+0x58/0xc0 [ 29.494932][ T7] schedule+0xa8/0x260 [ 29.494932][ T7] worker_thread+0x248/0xe40 [ 29.494932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.494932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.494932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.494932][ T7] kthread+0x354/0x420 [ 29.494932][ T7] ? process_one_work+0x1790/0x1790 [ 29.494932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.494932][ T7] ret_from_fork+0x24/0x30 [ 29.494962][ T1] mmdrop (____ptrval____) before 4 [ 29.504958][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.512183][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.514932][ T1] Call Trace: [ 29.514932][ T1] dump_stack+0x172/0x1f0 [ 29.514932][ T1] finish_task_switch+0x239/0x790 [ 29.514932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.514932][ T1] __schedule+0x7d3/0x1580 [ 29.514932][ T1] ? __sched_text_start+0x8/0x8 [ 29.514932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.514932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.514932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.514932][ T1] preempt_schedule+0x4b/0x60 [ 29.514932][ T1] ___preempt_schedule+0x16/0x18 [ 29.514932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.514932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.514932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.514932][ T1] ? kasan_check_read+0x11/0x20 [ 29.514932][ T1] wake_up_process+0x10/0x20 [ 29.514932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.514932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.514932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.514932][ T1] ? pointer+0x750/0x750 [ 29.514932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.514932][ T1] ? process_one_work+0x1790/0x1790 [ 29.514932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.514932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.514932][ T1] ? vsprintf+0x40/0x40 [ 29.514932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.514932][ T1] create_worker+0x25c/0x570 [ 29.514932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.514932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.514932][ T1] ? find_next_bit+0x107/0x130 [ 29.514932][ T1] workqueue_init+0x690/0x71e [ 29.514932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.514932][ T1] ? rest_init+0x37b/0x37b [ 29.514932][ T1] kernel_init+0x12/0x1c5 [ 29.514932][ T1] ret_from_fork+0x24/0x30 [ 29.514974][ T1] mmgrab (____ptrval____) to 4 [ 29.520302][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.524932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.524932][ T1] Call Trace: [ 29.524932][ T1] dump_stack+0x172/0x1f0 [ 29.524932][ T1] __schedule+0xd03/0x1580 [ 29.524932][ T1] ? __sched_text_start+0x8/0x8 [ 29.524932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.524932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.524932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.524932][ T1] preempt_schedule+0x4b/0x60 [ 29.524932][ T1] ___preempt_schedule+0x16/0x18 [ 29.524932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.524932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.524932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.524932][ T1] ? kasan_check_read+0x11/0x20 [ 29.524932][ T1] wake_up_process+0x10/0x20 [ 29.524932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.524932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.524932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.524932][ T1] ? pointer+0x750/0x750 [ 29.524932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.524932][ T1] ? process_one_work+0x1790/0x1790 [ 29.524932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.524932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.524932][ T1] ? vsprintf+0x40/0x40 [ 29.524932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.524932][ T1] create_worker+0x25c/0x570 [ 29.524932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.524932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.524932][ T1] ? find_next_bit+0x107/0x130 [ 29.524932][ T1] workqueue_init+0x690/0x71e [ 29.524932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.524932][ T1] ? rest_init+0x37b/0x37b [ 29.524932][ T1] kernel_init+0x12/0x1c5 [ 29.524932][ T1] ret_from_fork+0x24/0x30 [ 29.524960][ T2] mmdrop (____ptrval____) before 4 [ 29.531274][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.534932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.534932][ T2] Call Trace: [ 29.534932][ T2] dump_stack+0x172/0x1f0 [ 29.534932][ T2] finish_task_switch+0x239/0x790 [ 29.534932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.534932][ T2] __schedule+0x7d3/0x1580 [ 29.534932][ T2] ? __sched_text_start+0x8/0x8 [ 29.534932][ T2] schedule+0xa8/0x260 [ 29.534932][ T2] kthreadd+0x5cc/0x740 [ 29.534932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.534932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.534932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.534932][ T2] ret_from_fork+0x24/0x30 [ 29.534975][ T2] mmgrab (____ptrval____) to 4 [ 29.539926][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.544932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.544932][ T2] Call Trace: [ 29.544932][ T2] dump_stack+0x172/0x1f0 [ 29.544932][ T2] __schedule+0xd03/0x1580 [ 29.544932][ T2] ? __sched_text_start+0x8/0x8 [ 29.544932][ T2] schedule+0xa8/0x260 [ 29.544932][ T2] kthreadd+0x5cc/0x740 [ 29.544932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.544932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.544932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.544932][ T2] ret_from_fork+0x24/0x30 [ 29.544964][ T7] mmdrop (____ptrval____) before 4 [ 29.550352][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.554932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.554932][ T7] Call Trace: [ 29.554932][ T7] dump_stack+0x172/0x1f0 [ 29.554932][ T7] finish_task_switch+0x239/0x790 [ 29.554932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.554932][ T7] __schedule+0x7d3/0x1580 [ 29.554932][ T7] ? __sched_text_start+0x8/0x8 [ 29.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.554932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.554932][ T7] ? kthread_data+0x58/0xc0 [ 29.554932][ T7] schedule+0xa8/0x260 [ 29.554932][ T7] worker_thread+0x248/0xe40 [ 29.554932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.554932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.554932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.554932][ T7] kthread+0x354/0x420 [ 29.554932][ T7] ? process_one_work+0x1790/0x1790 [ 29.554932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.554932][ T7] ret_from_fork+0x24/0x30 [ 29.554988][ T7] mmgrab (____ptrval____) to 4 [ 29.560023][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.564932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.564932][ T7] Call Trace: [ 29.564932][ T7] dump_stack+0x172/0x1f0 [ 29.564932][ T7] __schedule+0xd03/0x1580 [ 29.564932][ T7] ? __sched_text_start+0x8/0x8 [ 29.564932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.564932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.564932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.564932][ T7] ? kthread_data+0x58/0xc0 [ 29.564932][ T7] schedule+0xa8/0x260 [ 29.564932][ T7] worker_thread+0x248/0xe40 [ 29.564932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.564932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.564932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.564932][ T7] kthread+0x354/0x420 [ 29.564932][ T7] ? process_one_work+0x1790/0x1790 [ 29.564932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.564932][ T7] ret_from_fork+0x24/0x30 [ 29.564960][ T1] mmdrop (____ptrval____) before 4 [ 29.574964][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.582322][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.584932][ T1] Call Trace: [ 29.584932][ T1] dump_stack+0x172/0x1f0 [ 29.584932][ T1] finish_task_switch+0x239/0x790 [ 29.584932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.584932][ T1] __schedule+0x7d3/0x1580 [ 29.584932][ T1] ? __sched_text_start+0x8/0x8 [ 29.584932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.584932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.584932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.584932][ T1] preempt_schedule+0x4b/0x60 [ 29.584932][ T1] ___preempt_schedule+0x16/0x18 [ 29.584932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.584932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.584932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.584932][ T1] ? kasan_check_read+0x11/0x20 [ 29.584932][ T1] wake_up_process+0x10/0x20 [ 29.584932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.584932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.584932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.584932][ T1] ? pointer+0x750/0x750 [ 29.584932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.584932][ T1] ? process_one_work+0x1790/0x1790 [ 29.584932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.584932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.584932][ T1] ? vsprintf+0x40/0x40 [ 29.584932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.584932][ T1] create_worker+0x25c/0x570 [ 29.584932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.584932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.584932][ T1] ? find_next_bit+0x107/0x130 [ 29.584932][ T1] workqueue_init+0x690/0x71e [ 29.584932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.584932][ T1] ? rest_init+0x37b/0x37b [ 29.584932][ T1] kernel_init+0x12/0x1c5 [ 29.584932][ T1] ret_from_fork+0x24/0x30 [ 29.584975][ T1] mmgrab (____ptrval____) to 4 [ 29.590018][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.594932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.594932][ T1] Call Trace: [ 29.594932][ T1] dump_stack+0x172/0x1f0 [ 29.594932][ T1] __schedule+0xd03/0x1580 [ 29.594932][ T1] ? __sched_text_start+0x8/0x8 [ 29.594932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.594932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.594932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.594932][ T1] preempt_schedule+0x4b/0x60 [ 29.594932][ T1] ___preempt_schedule+0x16/0x18 [ 29.594932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.594932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.594932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.594932][ T1] ? kasan_check_read+0x11/0x20 [ 29.594932][ T1] wake_up_process+0x10/0x20 [ 29.594932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.594932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.594932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.594932][ T1] ? pointer+0x750/0x750 [ 29.594932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.594932][ T1] ? process_one_work+0x1790/0x1790 [ 29.594932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.594932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.594932][ T1] ? vsprintf+0x40/0x40 [ 29.594932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.594932][ T1] create_worker+0x25c/0x570 [ 29.594932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.594932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.594932][ T1] ? find_next_bit+0x107/0x130 [ 29.594932][ T1] workqueue_init+0x690/0x71e [ 29.594932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.594932][ T1] ? rest_init+0x37b/0x37b [ 29.594932][ T1] kernel_init+0x12/0x1c5 [ 29.594932][ T1] ret_from_fork+0x24/0x30 [ 29.594962][ T2] mmdrop (____ptrval____) before 4 [ 29.604972][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.611990][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.614932][ T2] Call Trace: [ 29.614932][ T2] dump_stack+0x172/0x1f0 [ 29.614932][ T2] finish_task_switch+0x239/0x790 [ 29.614932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.614932][ T2] __schedule+0x7d3/0x1580 [ 29.614932][ T2] ? __sched_text_start+0x8/0x8 [ 29.614932][ T2] schedule+0xa8/0x260 [ 29.614932][ T2] kthreadd+0x5cc/0x740 [ 29.614932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.614932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.614932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.614932][ T2] ret_from_fork+0x24/0x30 [ 29.614974][ T2] mmgrab (____ptrval____) to 4 [ 29.619776][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.624932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.624932][ T2] Call Trace: [ 29.624932][ T2] dump_stack+0x172/0x1f0 [ 29.624932][ T2] __schedule+0xd03/0x1580 [ 29.624932][ T2] ? __sched_text_start+0x8/0x8 [ 29.624932][ T2] schedule+0xa8/0x260 [ 29.624932][ T2] kthreadd+0x5cc/0x740 [ 29.624932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.624932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.624932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.624932][ T2] ret_from_fork+0x24/0x30 [ 29.624963][ T7] mmdrop (____ptrval____) before 4 [ 29.630287][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.634932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.634932][ T7] Call Trace: [ 29.634932][ T7] dump_stack+0x172/0x1f0 [ 29.634932][ T7] finish_task_switch+0x239/0x790 [ 29.634932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.634932][ T7] __schedule+0x7d3/0x1580 [ 29.634932][ T7] ? __sched_text_start+0x8/0x8 [ 29.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.634932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.634932][ T7] ? kthread_data+0x58/0xc0 [ 29.634932][ T7] schedule+0xa8/0x260 [ 29.634932][ T7] worker_thread+0x248/0xe40 [ 29.634932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.634932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.634932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.634932][ T7] kthread+0x354/0x420 [ 29.634932][ T7] ? process_one_work+0x1790/0x1790 [ 29.634932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.634932][ T7] ret_from_fork+0x24/0x30 [ 29.634977][ T7] mmgrab (____ptrval____) to 4 [ 29.639750][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.644932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.644932][ T7] Call Trace: [ 29.644932][ T7] dump_stack+0x172/0x1f0 [ 29.644932][ T7] __schedule+0xd03/0x1580 [ 29.644932][ T7] ? __sched_text_start+0x8/0x8 [ 29.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.644932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.644932][ T7] ? kthread_data+0x58/0xc0 [ 29.644932][ T7] schedule+0xa8/0x260 [ 29.644932][ T7] worker_thread+0x248/0xe40 [ 29.644932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.644932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.644932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.644932][ T7] kthread+0x354/0x420 [ 29.644932][ T7] ? process_one_work+0x1790/0x1790 [ 29.644932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.644932][ T7] ret_from_fork+0x24/0x30 [ 29.644964][ T1] mmdrop (____ptrval____) before 4 [ 29.650171][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.654932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.654932][ T1] Call Trace: [ 29.654932][ T1] dump_stack+0x172/0x1f0 [ 29.654932][ T1] finish_task_switch+0x239/0x790 [ 29.654932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.654932][ T1] __schedule+0x7d3/0x1580 [ 29.654932][ T1] ? __sched_text_start+0x8/0x8 [ 29.654932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.654932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.654932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.654932][ T1] preempt_schedule+0x4b/0x60 [ 29.654932][ T1] ___preempt_schedule+0x16/0x18 [ 29.654932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.654932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.654932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.654932][ T1] ? kasan_check_read+0x11/0x20 [ 29.654932][ T1] wake_up_process+0x10/0x20 [ 29.654932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.654932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.654932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.654932][ T1] ? pointer+0x750/0x750 [ 29.654932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.654932][ T1] ? process_one_work+0x1790/0x1790 [ 29.654932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.654932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.654932][ T1] ? vsprintf+0x40/0x40 [ 29.654932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.654932][ T1] create_worker+0x25c/0x570 [ 29.654932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.654932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.654932][ T1] ? find_next_bit+0x107/0x130 [ 29.654932][ T1] workqueue_init+0x690/0x71e [ 29.654932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.654932][ T1] ? rest_init+0x37b/0x37b [ 29.654932][ T1] kernel_init+0x12/0x1c5 [ 29.654932][ T1] ret_from_fork+0x24/0x30 [ 29.654976][ T1] mmgrab (____ptrval____) to 4 [ 29.659749][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.664932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.664932][ T1] Call Trace: [ 29.664932][ T1] dump_stack+0x172/0x1f0 [ 29.664932][ T1] __schedule+0xd03/0x1580 [ 29.664932][ T1] ? __sched_text_start+0x8/0x8 [ 29.664932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.664932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.664932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.664932][ T1] preempt_schedule+0x4b/0x60 [ 29.664932][ T1] ___preempt_schedule+0x16/0x18 [ 29.664932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.664932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.664932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.664932][ T1] ? kasan_check_read+0x11/0x20 [ 29.664932][ T1] wake_up_process+0x10/0x20 [ 29.664932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.664932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.664932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.664932][ T1] ? pointer+0x750/0x750 [ 29.664932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.664932][ T1] ? process_one_work+0x1790/0x1790 [ 29.664932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.664932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.664932][ T1] ? vsprintf+0x40/0x40 [ 29.664932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.664932][ T1] create_worker+0x25c/0x570 [ 29.664932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.664932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.664932][ T1] ? find_next_bit+0x107/0x130 [ 29.664932][ T1] workqueue_init+0x690/0x71e [ 29.664932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.664932][ T1] ? rest_init+0x37b/0x37b [ 29.664932][ T1] kernel_init+0x12/0x1c5 [ 29.664932][ T1] ret_from_fork+0x24/0x30 [ 29.664963][ T2] mmdrop (____ptrval____) before 4 [ 29.674971][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.682381][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.684932][ T2] Call Trace: [ 29.684932][ T2] dump_stack+0x172/0x1f0 [ 29.684932][ T2] finish_task_switch+0x239/0x790 [ 29.684932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.684932][ T2] __schedule+0x7d3/0x1580 [ 29.684932][ T2] ? __sched_text_start+0x8/0x8 [ 29.684932][ T2] schedule+0xa8/0x260 [ 29.684932][ T2] kthreadd+0x5cc/0x740 [ 29.684932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.684932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.684932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.684932][ T2] ret_from_fork+0x24/0x30 [ 29.684976][ T2] mmgrab (____ptrval____) to 4 [ 29.689778][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.694932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.694932][ T2] Call Trace: [ 29.694932][ T2] dump_stack+0x172/0x1f0 [ 29.694932][ T2] __schedule+0xd03/0x1580 [ 29.694932][ T2] ? __sched_text_start+0x8/0x8 [ 29.694932][ T2] schedule+0xa8/0x260 [ 29.694932][ T2] kthreadd+0x5cc/0x740 [ 29.694932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.694932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.694932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.694932][ T2] ret_from_fork+0x24/0x30 [ 29.694961][ T7] mmdrop (____ptrval____) before 4 [ 29.704962][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.712248][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.714932][ T7] Call Trace: [ 29.714932][ T7] dump_stack+0x172/0x1f0 [ 29.714932][ T7] finish_task_switch+0x239/0x790 [ 29.714932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.714932][ T7] __schedule+0x7d3/0x1580 [ 29.714932][ T7] ? __sched_text_start+0x8/0x8 [ 29.714932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.714932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.714932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.714932][ T7] ? kthread_data+0x58/0xc0 [ 29.714932][ T7] schedule+0xa8/0x260 [ 29.714932][ T7] worker_thread+0x248/0xe40 [ 29.714932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.714932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.714932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.714932][ T7] kthread+0x354/0x420 [ 29.714932][ T7] ? process_one_work+0x1790/0x1790 [ 29.714932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.714932][ T7] ret_from_fork+0x24/0x30 [ 29.714987][ T7] mmgrab (____ptrval____) to 4 [ 29.719754][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.724932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.724932][ T7] Call Trace: [ 29.724932][ T7] dump_stack+0x172/0x1f0 [ 29.724932][ T7] __schedule+0xd03/0x1580 [ 29.724932][ T7] ? __sched_text_start+0x8/0x8 [ 29.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.724932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.724932][ T7] ? kthread_data+0x58/0xc0 [ 29.724932][ T7] schedule+0xa8/0x260 [ 29.724932][ T7] worker_thread+0x248/0xe40 [ 29.724932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.724932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.724932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.724932][ T7] kthread+0x354/0x420 [ 29.724932][ T7] ? process_one_work+0x1790/0x1790 [ 29.724932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.724932][ T7] ret_from_fork+0x24/0x30 [ 29.724964][ T1] mmdrop (____ptrval____) before 4 [ 29.730074][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.734932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.734932][ T1] Call Trace: [ 29.734932][ T1] dump_stack+0x172/0x1f0 [ 29.734932][ T1] finish_task_switch+0x239/0x790 [ 29.734932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.734932][ T1] __schedule+0x7d3/0x1580 [ 29.734932][ T1] ? __sched_text_start+0x8/0x8 [ 29.734932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.734932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.734932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.734932][ T1] preempt_schedule+0x4b/0x60 [ 29.734932][ T1] ___preempt_schedule+0x16/0x18 [ 29.734932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.734932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.734932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.734932][ T1] ? kasan_check_read+0x11/0x20 [ 29.734932][ T1] wake_up_process+0x10/0x20 [ 29.734932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.734932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.734932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.734932][ T1] ? pointer+0x750/0x750 [ 29.734932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.734932][ T1] ? process_one_work+0x1790/0x1790 [ 29.734932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.734932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.734932][ T1] ? vsprintf+0x40/0x40 [ 29.734932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.734932][ T1] create_worker+0x25c/0x570 [ 29.734932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.734932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.734932][ T1] ? find_next_bit+0x107/0x130 [ 29.734932][ T1] workqueue_init+0x690/0x71e [ 29.734932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.734932][ T1] ? rest_init+0x37b/0x37b [ 29.734932][ T1] kernel_init+0x12/0x1c5 [ 29.734932][ T1] ret_from_fork+0x24/0x30 [ 29.734975][ T1] mmgrab (____ptrval____) to 4 [ 29.739740][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.744932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.744932][ T1] Call Trace: [ 29.744932][ T1] dump_stack+0x172/0x1f0 [ 29.744932][ T1] __schedule+0xd03/0x1580 [ 29.744932][ T1] ? __sched_text_start+0x8/0x8 [ 29.744932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.744932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.744932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.744932][ T1] preempt_schedule+0x4b/0x60 [ 29.744932][ T1] ___preempt_schedule+0x16/0x18 [ 29.744932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.744932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.744932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.744932][ T1] ? kasan_check_read+0x11/0x20 [ 29.744932][ T1] wake_up_process+0x10/0x20 [ 29.744932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.744932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.744932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.744932][ T1] ? pointer+0x750/0x750 [ 29.744932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.744932][ T1] ? process_one_work+0x1790/0x1790 [ 29.744932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.744932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.744932][ T1] ? vsprintf+0x40/0x40 [ 29.744932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.744932][ T1] create_worker+0x25c/0x570 [ 29.744932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.744932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.744932][ T1] ? find_next_bit+0x107/0x130 [ 29.744932][ T1] workqueue_init+0x690/0x71e [ 29.744932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.744932][ T1] ? rest_init+0x37b/0x37b [ 29.744932][ T1] kernel_init+0x12/0x1c5 [ 29.744932][ T1] ret_from_fork+0x24/0x30 [ 29.744977][ T2] mmdrop (____ptrval____) before 4 [ 29.750328][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.754932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.754932][ T2] Call Trace: [ 29.754932][ T2] dump_stack+0x172/0x1f0 [ 29.754932][ T2] finish_task_switch+0x239/0x790 [ 29.754932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.754932][ T2] __schedule+0x7d3/0x1580 [ 29.754932][ T2] ? __sched_text_start+0x8/0x8 [ 29.754932][ T2] schedule+0xa8/0x260 [ 29.754932][ T2] kthreadd+0x5cc/0x740 [ 29.754932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.754932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.754932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.754932][ T2] ret_from_fork+0x24/0x30 [ 29.754977][ T2] mmgrab (____ptrval____) to 4 [ 29.759835][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.764932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.764932][ T2] Call Trace: [ 29.764932][ T2] dump_stack+0x172/0x1f0 [ 29.764932][ T2] __schedule+0xd03/0x1580 [ 29.764932][ T2] ? __sched_text_start+0x8/0x8 [ 29.764932][ T2] schedule+0xa8/0x260 [ 29.764932][ T2] kthreadd+0x5cc/0x740 [ 29.764932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.764932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.764932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.764932][ T2] ret_from_fork+0x24/0x30 [ 29.764970][ T7] mmdrop (____ptrval____) before 4 [ 29.774979][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.783087][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.784932][ T7] Call Trace: [ 29.784932][ T7] dump_stack+0x172/0x1f0 [ 29.784932][ T7] finish_task_switch+0x239/0x790 [ 29.784932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.784932][ T7] __schedule+0x7d3/0x1580 [ 29.784932][ T7] ? __sched_text_start+0x8/0x8 [ 29.784932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.784932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.784932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.784932][ T7] ? kthread_data+0x58/0xc0 [ 29.784932][ T7] schedule+0xa8/0x260 [ 29.784932][ T7] worker_thread+0x248/0xe40 [ 29.784932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.784932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.784932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.784932][ T7] kthread+0x354/0x420 [ 29.784932][ T7] ? process_one_work+0x1790/0x1790 [ 29.784932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.784932][ T7] ret_from_fork+0x24/0x30 [ 29.784976][ T7] mmgrab (____ptrval____) to 4 [ 29.790210][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.794932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.794932][ T7] Call Trace: [ 29.794932][ T7] dump_stack+0x172/0x1f0 [ 29.794932][ T7] __schedule+0xd03/0x1580 [ 29.794932][ T7] ? __sched_text_start+0x8/0x8 [ 29.794932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.794932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.794932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.794932][ T7] ? kthread_data+0x58/0xc0 [ 29.794932][ T7] schedule+0xa8/0x260 [ 29.794932][ T7] worker_thread+0x248/0xe40 [ 29.794932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.794932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.794932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.794932][ T7] kthread+0x354/0x420 [ 29.794932][ T7] ? process_one_work+0x1790/0x1790 [ 29.794932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.794932][ T7] ret_from_fork+0x24/0x30 [ 29.794963][ T1] mmdrop (____ptrval____) before 4 [ 29.800255][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.804932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.804932][ T1] Call Trace: [ 29.804932][ T1] dump_stack+0x172/0x1f0 [ 29.804932][ T1] finish_task_switch+0x239/0x790 [ 29.804932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.804932][ T1] __schedule+0x7d3/0x1580 [ 29.804932][ T1] ? __sched_text_start+0x8/0x8 [ 29.804932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.804932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.804932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.804932][ T1] preempt_schedule+0x4b/0x60 [ 29.804932][ T1] ___preempt_schedule+0x16/0x18 [ 29.804932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.804932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.804932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.804932][ T1] ? kasan_check_read+0x11/0x20 [ 29.804932][ T1] wake_up_process+0x10/0x20 [ 29.804932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.804932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.804932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.804932][ T1] ? pointer+0x750/0x750 [ 29.804932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.804932][ T1] ? process_one_work+0x1790/0x1790 [ 29.804932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.804932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.804932][ T1] ? vsprintf+0x40/0x40 [ 29.804932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.804932][ T1] create_worker+0x25c/0x570 [ 29.804932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.804932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.804932][ T1] ? find_next_bit+0x107/0x130 [ 29.804932][ T1] workqueue_init+0x690/0x71e [ 29.804932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.804932][ T1] ? rest_init+0x37b/0x37b [ 29.804932][ T1] kernel_init+0x12/0x1c5 [ 29.804932][ T1] ret_from_fork+0x24/0x30 [ 29.804976][ T1] mmgrab (____ptrval____) to 4 [ 29.809768][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.814932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.814932][ T1] Call Trace: [ 29.814932][ T1] dump_stack+0x172/0x1f0 [ 29.814932][ T1] __schedule+0xd03/0x1580 [ 29.814932][ T1] ? __sched_text_start+0x8/0x8 [ 29.814932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.814932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.814932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.814932][ T1] preempt_schedule+0x4b/0x60 [ 29.814932][ T1] ___preempt_schedule+0x16/0x18 [ 29.814932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.814932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.814932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.814932][ T1] ? kasan_check_read+0x11/0x20 [ 29.814932][ T1] wake_up_process+0x10/0x20 [ 29.814932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.814932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.814932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.814932][ T1] ? pointer+0x750/0x750 [ 29.814932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.814932][ T1] ? process_one_work+0x1790/0x1790 [ 29.814932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.814932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.814932][ T1] ? vsprintf+0x40/0x40 [ 29.814932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.814932][ T1] create_worker+0x25c/0x570 [ 29.814932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.814932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.814932][ T1] ? find_next_bit+0x107/0x130 [ 29.814932][ T1] workqueue_init+0x690/0x71e [ 29.814932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.814932][ T1] ? rest_init+0x37b/0x37b [ 29.814932][ T1] kernel_init+0x12/0x1c5 [ 29.814932][ T1] ret_from_fork+0x24/0x30 [ 29.814963][ T2] mmdrop (____ptrval____) before 4 [ 29.824972][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.832072][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.834932][ T2] Call Trace: [ 29.834932][ T2] dump_stack+0x172/0x1f0 [ 29.834932][ T2] finish_task_switch+0x239/0x790 [ 29.834932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.834932][ T2] __schedule+0x7d3/0x1580 [ 29.834932][ T2] ? __sched_text_start+0x8/0x8 [ 29.834932][ T2] schedule+0xa8/0x260 [ 29.834932][ T2] kthreadd+0x5cc/0x740 [ 29.834932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.834932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.834932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.834932][ T2] ret_from_fork+0x24/0x30 [ 29.834974][ T2] mmgrab (____ptrval____) to 4 [ 29.840210][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.844932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.844932][ T2] Call Trace: [ 29.844932][ T2] dump_stack+0x172/0x1f0 [ 29.844932][ T2] __schedule+0xd03/0x1580 [ 29.844932][ T2] ? __sched_text_start+0x8/0x8 [ 29.844932][ T2] schedule+0xa8/0x260 [ 29.844932][ T2] kthreadd+0x5cc/0x740 [ 29.844932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.844932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.844932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.844932][ T2] ret_from_fork+0x24/0x30 [ 29.844963][ T1] mmdrop (____ptrval____) before 4 [ 29.854970][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.862257][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.864932][ T1] Call Trace: [ 29.864932][ T1] dump_stack+0x172/0x1f0 [ 29.864932][ T1] finish_task_switch+0x239/0x790 [ 29.864932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.864932][ T1] __schedule+0x7d3/0x1580 [ 29.864932][ T1] ? __sched_text_start+0x8/0x8 [ 29.864932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.864932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.864932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.864932][ T1] preempt_schedule+0x4b/0x60 [ 29.864932][ T1] ___preempt_schedule+0x16/0x18 [ 29.864932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.864932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.864932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.864932][ T1] ? kasan_check_read+0x11/0x20 [ 29.864932][ T1] wake_up_process+0x10/0x20 [ 29.864932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.864932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.864932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.864932][ T1] ? pointer+0x750/0x750 [ 29.864932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.864932][ T1] ? process_one_work+0x1790/0x1790 [ 29.864932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.864932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.864932][ T1] ? vsprintf+0x40/0x40 [ 29.864932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.864932][ T1] create_worker+0x25c/0x570 [ 29.864932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.864932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.864932][ T1] ? find_next_bit+0x107/0x130 [ 29.864932][ T1] workqueue_init+0x690/0x71e [ 29.864932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.864932][ T1] ? rest_init+0x37b/0x37b [ 29.864932][ T1] kernel_init+0x12/0x1c5 [ 29.864932][ T1] ret_from_fork+0x24/0x30 [ 29.864976][ T1] mmgrab (____ptrval____) to 4 [ 29.869871][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.874932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.874932][ T1] Call Trace: [ 29.874932][ T1] dump_stack+0x172/0x1f0 [ 29.874932][ T1] __schedule+0xd03/0x1580 [ 29.874932][ T1] ? __sched_text_start+0x8/0x8 [ 29.874932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.874932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.874932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.874932][ T1] preempt_schedule+0x4b/0x60 [ 29.874932][ T1] ___preempt_schedule+0x16/0x18 [ 29.874932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.874932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.874932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.874932][ T1] ? kasan_check_read+0x11/0x20 [ 29.874932][ T1] wake_up_process+0x10/0x20 [ 29.874932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.874932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.874932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.874932][ T1] ? pointer+0x750/0x750 [ 29.874932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.874932][ T1] ? process_one_work+0x1790/0x1790 [ 29.874932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.874932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.874932][ T1] ? vsprintf+0x40/0x40 [ 29.874932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.874932][ T1] create_worker+0x25c/0x570 [ 29.874932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.874932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.874932][ T1] ? find_next_bit+0x107/0x130 [ 29.874932][ T1] workqueue_init+0x690/0x71e [ 29.874932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.874932][ T1] ? rest_init+0x37b/0x37b [ 29.874932][ T1] kernel_init+0x12/0x1c5 [ 29.874932][ T1] ret_from_fork+0x24/0x30 [ 29.874964][ T7] mmdrop (____ptrval____) before 4 [ 29.880076][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.884932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.884932][ T7] Call Trace: [ 29.884932][ T7] dump_stack+0x172/0x1f0 [ 29.884932][ T7] finish_task_switch+0x239/0x790 [ 29.884932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.884932][ T7] __schedule+0x7d3/0x1580 [ 29.884932][ T7] ? __sched_text_start+0x8/0x8 [ 29.884932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.884932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.884932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.884932][ T7] ? kthread_data+0x58/0xc0 [ 29.884932][ T7] schedule+0xa8/0x260 [ 29.884932][ T7] worker_thread+0x248/0xe40 [ 29.884932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.884932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.884932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.884932][ T7] kthread+0x354/0x420 [ 29.884932][ T7] ? process_one_work+0x1790/0x1790 [ 29.884932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.884932][ T7] ret_from_fork+0x24/0x30 [ 29.884976][ T7] mmgrab (____ptrval____) to 4 [ 29.889872][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.894932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.894932][ T7] Call Trace: [ 29.894932][ T7] dump_stack+0x172/0x1f0 [ 29.894932][ T7] __schedule+0xd03/0x1580 [ 29.894932][ T7] ? __sched_text_start+0x8/0x8 [ 29.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.894932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.894932][ T7] ? kthread_data+0x58/0xc0 [ 29.894932][ T7] schedule+0xa8/0x260 [ 29.894932][ T7] worker_thread+0x248/0xe40 [ 29.894932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.894932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.894932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.894932][ T7] kthread+0x354/0x420 [ 29.894932][ T7] ? process_one_work+0x1790/0x1790 [ 29.894932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.894932][ T7] ret_from_fork+0x24/0x30 [ 29.894963][ T2] mmdrop (____ptrval____) before 4 [ 29.904973][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.912129][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.914932][ T2] Call Trace: [ 29.914932][ T2] dump_stack+0x172/0x1f0 [ 29.914932][ T2] finish_task_switch+0x239/0x790 [ 29.914932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.914932][ T2] __schedule+0x7d3/0x1580 [ 29.914932][ T2] ? __sched_text_start+0x8/0x8 [ 29.914932][ T2] schedule+0xa8/0x260 [ 29.914932][ T2] kthreadd+0x5cc/0x740 [ 29.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.914932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.914932][ T2] ret_from_fork+0x24/0x30 [ 29.914975][ T2] mmgrab (____ptrval____) to 4 [ 29.919750][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.924932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.924932][ T2] Call Trace: [ 29.924932][ T2] dump_stack+0x172/0x1f0 [ 29.924932][ T2] __schedule+0xd03/0x1580 [ 29.924932][ T2] ? __sched_text_start+0x8/0x8 [ 29.924932][ T2] schedule+0xa8/0x260 [ 29.924932][ T2] kthreadd+0x5cc/0x740 [ 29.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.924932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.924932][ T2] ret_from_fork+0x24/0x30 [ 29.924963][ T7] mmdrop (____ptrval____) before 4 [ 29.930073][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.934932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.934932][ T7] Call Trace: [ 29.934932][ T7] dump_stack+0x172/0x1f0 [ 29.934932][ T7] finish_task_switch+0x239/0x790 [ 29.934932][ T7] ? dump_stack+0x1de/0x1f0 [ 29.934932][ T7] __schedule+0x7d3/0x1580 [ 29.934932][ T7] ? __sched_text_start+0x8/0x8 [ 29.934932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.934932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.934932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.934932][ T7] ? kthread_data+0x58/0xc0 [ 29.934932][ T7] schedule+0xa8/0x260 [ 29.934932][ T7] worker_thread+0x248/0xe40 [ 29.934932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.934932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.934932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.934932][ T7] kthread+0x354/0x420 [ 29.934932][ T7] ? process_one_work+0x1790/0x1790 [ 29.934932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.934932][ T7] ret_from_fork+0x24/0x30 [ 29.934978][ T7] mmgrab (____ptrval____) to 4 [ 29.940462][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 29.944932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.944932][ T7] Call Trace: [ 29.944932][ T7] dump_stack+0x172/0x1f0 [ 29.944932][ T7] __schedule+0xd03/0x1580 [ 29.944932][ T7] ? __sched_text_start+0x8/0x8 [ 29.944932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.944932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 29.944932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.944932][ T7] ? kthread_data+0x58/0xc0 [ 29.944932][ T7] schedule+0xa8/0x260 [ 29.944932][ T7] worker_thread+0x248/0xe40 [ 29.944932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 29.944932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 29.944932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 29.944932][ T7] kthread+0x354/0x420 [ 29.944932][ T7] ? process_one_work+0x1790/0x1790 [ 29.944932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 29.944932][ T7] ret_from_fork+0x24/0x30 [ 29.944963][ T1] mmdrop (____ptrval____) before 4 [ 29.954978][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.962382][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.964932][ T1] Call Trace: [ 29.964932][ T1] dump_stack+0x172/0x1f0 [ 29.964932][ T1] finish_task_switch+0x239/0x790 [ 29.964932][ T1] ? dump_stack+0x1de/0x1f0 [ 29.964932][ T1] __schedule+0x7d3/0x1580 [ 29.964932][ T1] ? __sched_text_start+0x8/0x8 [ 29.964932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.964932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.964932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.964932][ T1] preempt_schedule+0x4b/0x60 [ 29.964932][ T1] ___preempt_schedule+0x16/0x18 [ 29.964932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.964932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.964932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.964932][ T1] ? kasan_check_read+0x11/0x20 [ 29.964932][ T1] wake_up_process+0x10/0x20 [ 29.964932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.964932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.964932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.964932][ T1] ? pointer+0x750/0x750 [ 29.964932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.964932][ T1] ? process_one_work+0x1790/0x1790 [ 29.964932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.964932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.964932][ T1] ? vsprintf+0x40/0x40 [ 29.964932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.964932][ T1] create_worker+0x25c/0x570 [ 29.964932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.964932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.964932][ T1] ? find_next_bit+0x107/0x130 [ 29.964932][ T1] workqueue_init+0x690/0x71e [ 29.964932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.964932][ T1] ? rest_init+0x37b/0x37b [ 29.964932][ T1] kernel_init+0x12/0x1c5 [ 29.964932][ T1] ret_from_fork+0x24/0x30 [ 29.964976][ T1] mmgrab (____ptrval____) to 4 [ 29.970143][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 29.974932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.974932][ T1] Call Trace: [ 29.974932][ T1] dump_stack+0x172/0x1f0 [ 29.974932][ T1] __schedule+0xd03/0x1580 [ 29.974932][ T1] ? __sched_text_start+0x8/0x8 [ 29.974932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 29.974932][ T1] ? preempt_schedule+0x4b/0x60 [ 29.974932][ T1] preempt_schedule_common+0x4f/0xe0 [ 29.974932][ T1] preempt_schedule+0x4b/0x60 [ 29.974932][ T1] ___preempt_schedule+0x16/0x18 [ 29.974932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 29.974932][ T1] try_to_wake_up+0xc8/0x13f0 [ 29.974932][ T1] ? migrate_swap_stop+0x920/0x920 [ 29.974932][ T1] ? kasan_check_read+0x11/0x20 [ 29.974932][ T1] wake_up_process+0x10/0x20 [ 29.974932][ T1] __kthread_create_on_node+0x281/0x460 [ 29.974932][ T1] ? kthread_parkme+0xb0/0xb0 [ 29.974932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 29.974932][ T1] ? pointer+0x750/0x750 [ 29.974932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 29.974932][ T1] ? process_one_work+0x1790/0x1790 [ 29.974932][ T1] kthread_create_on_node+0xbb/0xf0 [ 29.974932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 29.974932][ T1] ? vsprintf+0x40/0x40 [ 29.974932][ T1] ? ___preempt_schedule+0x16/0x18 [ 29.974932][ T1] create_worker+0x25c/0x570 [ 29.974932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 29.974932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 29.974932][ T1] ? find_next_bit+0x107/0x130 [ 29.974932][ T1] workqueue_init+0x690/0x71e [ 29.974932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 29.974932][ T1] ? rest_init+0x37b/0x37b [ 29.974932][ T1] kernel_init+0x12/0x1c5 [ 29.974932][ T1] ret_from_fork+0x24/0x30 [ 29.974965][ T2] mmdrop (____ptrval____) before 4 [ 29.984975][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 29.992285][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.994932][ T2] Call Trace: [ 29.994932][ T2] dump_stack+0x172/0x1f0 [ 29.994932][ T2] finish_task_switch+0x239/0x790 [ 29.994932][ T2] ? dump_stack+0x1de/0x1f0 [ 29.994932][ T2] __schedule+0x7d3/0x1580 [ 29.994932][ T2] ? __sched_text_start+0x8/0x8 [ 29.994932][ T2] schedule+0xa8/0x260 [ 29.994932][ T2] kthreadd+0x5cc/0x740 [ 29.994932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.994932][ T2] ? calculate_sigpending+0x87/0xa0 [ 29.994932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 29.994932][ T2] ret_from_fork+0x24/0x30 [ 29.994977][ T2] mmgrab (____ptrval____) to 4 [ 29.999843][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.004932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.004932][ T2] Call Trace: [ 30.004932][ T2] dump_stack+0x172/0x1f0 [ 30.004932][ T2] __schedule+0xd03/0x1580 [ 30.004932][ T2] ? __sched_text_start+0x8/0x8 [ 30.004932][ T2] schedule+0xa8/0x260 [ 30.004932][ T2] kthreadd+0x5cc/0x740 [ 30.004932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.004932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.004932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.004932][ T2] ret_from_fork+0x24/0x30 [ 30.004966][ T7] mmdrop (____ptrval____) before 4 [ 30.011211][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.014932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.014932][ T7] Call Trace: [ 30.014932][ T7] dump_stack+0x172/0x1f0 [ 30.014932][ T7] finish_task_switch+0x239/0x790 [ 30.014932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.014932][ T7] __schedule+0x7d3/0x1580 [ 30.014932][ T7] ? __sched_text_start+0x8/0x8 [ 30.014932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.014932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.014932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.014932][ T7] ? kthread_data+0x58/0xc0 [ 30.014932][ T7] schedule+0xa8/0x260 [ 30.014932][ T7] worker_thread+0x248/0xe40 [ 30.014932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.014932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.014932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.014932][ T7] kthread+0x354/0x420 [ 30.014932][ T7] ? process_one_work+0x1790/0x1790 [ 30.014932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.014932][ T7] ret_from_fork+0x24/0x30 [ 30.014975][ T7] mmgrab (____ptrval____) to 4 [ 30.020128][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.024932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.024932][ T7] Call Trace: [ 30.024932][ T7] dump_stack+0x172/0x1f0 [ 30.024932][ T7] __schedule+0xd03/0x1580 [ 30.024932][ T7] ? __sched_text_start+0x8/0x8 [ 30.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.024932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.024932][ T7] ? kthread_data+0x58/0xc0 [ 30.024932][ T7] schedule+0xa8/0x260 [ 30.024932][ T7] worker_thread+0x248/0xe40 [ 30.024932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.024932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.024932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.024932][ T7] kthread+0x354/0x420 [ 30.024932][ T7] ? process_one_work+0x1790/0x1790 [ 30.024932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.024932][ T7] ret_from_fork+0x24/0x30 [ 30.024965][ T1] mmdrop (____ptrval____) before 4 [ 30.030231][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.034932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.034932][ T1] Call Trace: [ 30.034932][ T1] dump_stack+0x172/0x1f0 [ 30.034932][ T1] finish_task_switch+0x239/0x790 [ 30.034932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.034932][ T1] __schedule+0x7d3/0x1580 [ 30.034932][ T1] ? __sched_text_start+0x8/0x8 [ 30.034932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.034932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.034932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.034932][ T1] preempt_schedule+0x4b/0x60 [ 30.034932][ T1] ___preempt_schedule+0x16/0x18 [ 30.034932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.034932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.034932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.034932][ T1] ? kasan_check_read+0x11/0x20 [ 30.034932][ T1] wake_up_process+0x10/0x20 [ 30.034932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.034932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.034932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.034932][ T1] ? pointer+0x750/0x750 [ 30.034932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.034932][ T1] ? process_one_work+0x1790/0x1790 [ 30.034932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.034932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.034932][ T1] ? vsprintf+0x40/0x40 [ 30.034932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.034932][ T1] create_worker+0x25c/0x570 [ 30.034932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.034932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.034932][ T1] ? find_next_bit+0x107/0x130 [ 30.034932][ T1] workqueue_init+0x690/0x71e [ 30.034932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.034932][ T1] ? rest_init+0x37b/0x37b [ 30.034932][ T1] kernel_init+0x12/0x1c5 [ 30.034932][ T1] ret_from_fork+0x24/0x30 [ 30.034976][ T1] mmgrab (____ptrval____) to 4 [ 30.039752][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.044932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.044932][ T1] Call Trace: [ 30.044932][ T1] dump_stack+0x172/0x1f0 [ 30.044932][ T1] __schedule+0xd03/0x1580 [ 30.044932][ T1] ? __sched_text_start+0x8/0x8 [ 30.044932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.044932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.044932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.044932][ T1] preempt_schedule+0x4b/0x60 [ 30.044932][ T1] ___preempt_schedule+0x16/0x18 [ 30.044932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.044932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.044932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.044932][ T1] ? kasan_check_read+0x11/0x20 [ 30.044932][ T1] wake_up_process+0x10/0x20 [ 30.044932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.044932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.044932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.044932][ T1] ? pointer+0x750/0x750 [ 30.044932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.044932][ T1] ? process_one_work+0x1790/0x1790 [ 30.044932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.044932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.044932][ T1] ? vsprintf+0x40/0x40 [ 30.044932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.044932][ T1] create_worker+0x25c/0x570 [ 30.044932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.044932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.044932][ T1] ? find_next_bit+0x107/0x130 [ 30.044932][ T1] workqueue_init+0x690/0x71e [ 30.044932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.044932][ T1] ? rest_init+0x37b/0x37b [ 30.044932][ T1] kernel_init+0x12/0x1c5 [ 30.044932][ T1] ret_from_fork+0x24/0x30 [ 30.044967][ T2] mmdrop (____ptrval____) before 4 [ 30.052474][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.054932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.054932][ T2] Call Trace: [ 30.054932][ T2] dump_stack+0x172/0x1f0 [ 30.054932][ T2] finish_task_switch+0x239/0x790 [ 30.054932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.054932][ T2] __schedule+0x7d3/0x1580 [ 30.054932][ T2] ? __sched_text_start+0x8/0x8 [ 30.054932][ T2] schedule+0xa8/0x260 [ 30.054932][ T2] kthreadd+0x5cc/0x740 [ 30.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.054932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.054932][ T2] ret_from_fork+0x24/0x30 [ 30.054975][ T2] mmgrab (____ptrval____) to 4 [ 30.059872][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.064932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.064932][ T2] Call Trace: [ 30.064932][ T2] dump_stack+0x172/0x1f0 [ 30.064932][ T2] __schedule+0xd03/0x1580 [ 30.064932][ T2] ? __sched_text_start+0x8/0x8 [ 30.064932][ T2] schedule+0xa8/0x260 [ 30.064932][ T2] kthreadd+0x5cc/0x740 [ 30.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.064932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.064932][ T2] ret_from_fork+0x24/0x30 [ 30.064975][ T7] mmdrop (____ptrval____) before 4 [ 30.070402][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.074932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.074932][ T7] Call Trace: [ 30.074932][ T7] dump_stack+0x172/0x1f0 [ 30.074932][ T7] finish_task_switch+0x239/0x790 [ 30.074932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.074932][ T7] __schedule+0x7d3/0x1580 [ 30.074932][ T7] ? __sched_text_start+0x8/0x8 [ 30.074932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.074932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.074932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.074932][ T7] ? kthread_data+0x58/0xc0 [ 30.074932][ T7] schedule+0xa8/0x260 [ 30.074932][ T7] worker_thread+0x248/0xe40 [ 30.074932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.074932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.074932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.074932][ T7] kthread+0x354/0x420 [ 30.074932][ T7] ? process_one_work+0x1790/0x1790 [ 30.074932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.074932][ T7] ret_from_fork+0x24/0x30 [ 30.074978][ T7] mmgrab (____ptrval____) to 4 [ 30.081332][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.084932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.084932][ T7] Call Trace: [ 30.084932][ T7] dump_stack+0x172/0x1f0 [ 30.084932][ T7] __schedule+0xd03/0x1580 [ 30.084932][ T7] ? __sched_text_start+0x8/0x8 [ 30.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.084932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.084932][ T7] ? kthread_data+0x58/0xc0 [ 30.084932][ T7] schedule+0xa8/0x260 [ 30.084932][ T7] worker_thread+0x248/0xe40 [ 30.084932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.084932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.084932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.084932][ T7] kthread+0x354/0x420 [ 30.084932][ T7] ? process_one_work+0x1790/0x1790 [ 30.084932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.084932][ T7] ret_from_fork+0x24/0x30 [ 30.084963][ T1] mmdrop (____ptrval____) before 4 [ 30.090301][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.094932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.094932][ T1] Call Trace: [ 30.094932][ T1] dump_stack+0x172/0x1f0 [ 30.094932][ T1] finish_task_switch+0x239/0x790 [ 30.094932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.094932][ T1] __schedule+0x7d3/0x1580 [ 30.094932][ T1] ? __sched_text_start+0x8/0x8 [ 30.094932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.094932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.094932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.094932][ T1] preempt_schedule+0x4b/0x60 [ 30.094932][ T1] ___preempt_schedule+0x16/0x18 [ 30.094932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.094932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.094932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.094932][ T1] ? kasan_check_read+0x11/0x20 [ 30.094932][ T1] wake_up_process+0x10/0x20 [ 30.094932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.094932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.094932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.094932][ T1] ? pointer+0x750/0x750 [ 30.094932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.094932][ T1] ? process_one_work+0x1790/0x1790 [ 30.094932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.094932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.094932][ T1] ? vsprintf+0x40/0x40 [ 30.094932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.094932][ T1] create_worker+0x25c/0x570 [ 30.094932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.094932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.094932][ T1] ? find_next_bit+0x107/0x130 [ 30.094932][ T1] workqueue_init+0x690/0x71e [ 30.094932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.094932][ T1] ? rest_init+0x37b/0x37b [ 30.094932][ T1] kernel_init+0x12/0x1c5 [ 30.094932][ T1] ret_from_fork+0x24/0x30 [ 30.094976][ T1] mmgrab (____ptrval____) to 4 [ 30.099767][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.104932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.104932][ T1] Call Trace: [ 30.104932][ T1] dump_stack+0x172/0x1f0 [ 30.104932][ T1] __schedule+0xd03/0x1580 [ 30.104932][ T1] ? __sched_text_start+0x8/0x8 [ 30.104932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.104932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.104932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.104932][ T1] preempt_schedule+0x4b/0x60 [ 30.104932][ T1] ___preempt_schedule+0x16/0x18 [ 30.104932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.104932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.104932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.104932][ T1] ? kasan_check_read+0x11/0x20 [ 30.104932][ T1] wake_up_process+0x10/0x20 [ 30.104932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.104932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.104932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.104932][ T1] ? pointer+0x750/0x750 [ 30.104932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.104932][ T1] ? process_one_work+0x1790/0x1790 [ 30.104932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.104932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.104932][ T1] ? vsprintf+0x40/0x40 [ 30.104932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.104932][ T1] create_worker+0x25c/0x570 [ 30.104932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.104932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.104932][ T1] ? find_next_bit+0x107/0x130 [ 30.104932][ T1] workqueue_init+0x690/0x71e [ 30.104932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.104932][ T1] ? rest_init+0x37b/0x37b [ 30.104932][ T1] kernel_init+0x12/0x1c5 [ 30.104932][ T1] ret_from_fork+0x24/0x30 [ 30.104963][ T2] mmdrop (____ptrval____) before 4 [ 30.114974][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.121993][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.124932][ T2] Call Trace: [ 30.124932][ T2] dump_stack+0x172/0x1f0 [ 30.124932][ T2] finish_task_switch+0x239/0x790 [ 30.124932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.124932][ T2] __schedule+0x7d3/0x1580 [ 30.124932][ T2] ? __sched_text_start+0x8/0x8 [ 30.124932][ T2] schedule+0xa8/0x260 [ 30.124932][ T2] kthreadd+0x5cc/0x740 [ 30.124932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.124932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.124932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.124932][ T2] ret_from_fork+0x24/0x30 [ 30.124972][ T2] mmgrab (____ptrval____) to 4 [ 30.129814][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.134932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.134932][ T2] Call Trace: [ 30.134932][ T2] dump_stack+0x172/0x1f0 [ 30.134932][ T2] __schedule+0xd03/0x1580 [ 30.134932][ T2] ? __sched_text_start+0x8/0x8 [ 30.134932][ T2] schedule+0xa8/0x260 [ 30.134932][ T2] kthreadd+0x5cc/0x740 [ 30.134932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.134932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.134932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.134932][ T2] ret_from_fork+0x24/0x30 [ 30.134962][ T7] mmdrop (____ptrval____) before 4 [ 30.144975][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.152477][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.154932][ T7] Call Trace: [ 30.154932][ T7] dump_stack+0x172/0x1f0 [ 30.154932][ T7] finish_task_switch+0x239/0x790 [ 30.154932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.154932][ T7] __schedule+0x7d3/0x1580 [ 30.154932][ T7] ? __sched_text_start+0x8/0x8 [ 30.154932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.154932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.154932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.154932][ T7] ? kthread_data+0x58/0xc0 [ 30.154932][ T7] schedule+0xa8/0x260 [ 30.154932][ T7] worker_thread+0x248/0xe40 [ 30.154932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.154932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.154932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.154932][ T7] kthread+0x354/0x420 [ 30.154932][ T7] ? process_one_work+0x1790/0x1790 [ 30.154932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.154932][ T7] ret_from_fork+0x24/0x30 [ 30.154976][ T7] mmgrab (____ptrval____) to 4 [ 30.159787][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.164932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.164932][ T7] Call Trace: [ 30.164932][ T7] dump_stack+0x172/0x1f0 [ 30.164932][ T7] __schedule+0xd03/0x1580 [ 30.164932][ T7] ? __sched_text_start+0x8/0x8 [ 30.164932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.164932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.164932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.164932][ T7] ? kthread_data+0x58/0xc0 [ 30.164932][ T7] schedule+0xa8/0x260 [ 30.164932][ T7] worker_thread+0x248/0xe40 [ 30.164932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.164932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.164932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.164932][ T7] kthread+0x354/0x420 [ 30.164932][ T7] ? process_one_work+0x1790/0x1790 [ 30.164932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.164932][ T7] ret_from_fork+0x24/0x30 [ 30.164963][ T1] mmdrop (____ptrval____) before 4 [ 30.170084][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.174932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.174932][ T1] Call Trace: [ 30.174932][ T1] dump_stack+0x172/0x1f0 [ 30.174932][ T1] finish_task_switch+0x239/0x790 [ 30.174932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.174932][ T1] __schedule+0x7d3/0x1580 [ 30.174932][ T1] ? __sched_text_start+0x8/0x8 [ 30.174932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.174932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.174932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.174932][ T1] preempt_schedule+0x4b/0x60 [ 30.174932][ T1] ___preempt_schedule+0x16/0x18 [ 30.174932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.174932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.174932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.174932][ T1] ? kasan_check_read+0x11/0x20 [ 30.174932][ T1] wake_up_process+0x10/0x20 [ 30.174932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.174932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.174932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.174932][ T1] ? pointer+0x750/0x750 [ 30.174932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.174932][ T1] ? process_one_work+0x1790/0x1790 [ 30.174932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.174932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.174932][ T1] ? vsprintf+0x40/0x40 [ 30.174932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.174932][ T1] create_worker+0x25c/0x570 [ 30.174932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.174932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.174932][ T1] ? find_next_bit+0x107/0x130 [ 30.174932][ T1] workqueue_init+0x690/0x71e [ 30.174932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.174932][ T1] ? rest_init+0x37b/0x37b [ 30.174932][ T1] kernel_init+0x12/0x1c5 [ 30.174932][ T1] ret_from_fork+0x24/0x30 [ 30.174974][ T1] mmgrab (____ptrval____) to 4 [ 30.179909][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.184932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.184932][ T1] Call Trace: [ 30.184932][ T1] dump_stack+0x172/0x1f0 [ 30.184932][ T1] __schedule+0xd03/0x1580 [ 30.184932][ T1] ? __sched_text_start+0x8/0x8 [ 30.184932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.184932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.184932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.184932][ T1] preempt_schedule+0x4b/0x60 [ 30.184932][ T1] ___preempt_schedule+0x16/0x18 [ 30.184932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.184932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.184932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.184932][ T1] ? kasan_check_read+0x11/0x20 [ 30.184932][ T1] wake_up_process+0x10/0x20 [ 30.184932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.184932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.184932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.184932][ T1] ? pointer+0x750/0x750 [ 30.184932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.184932][ T1] ? process_one_work+0x1790/0x1790 [ 30.184932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.184932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.184932][ T1] ? vsprintf+0x40/0x40 [ 30.184932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.184932][ T1] create_worker+0x25c/0x570 [ 30.184932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.184932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.184932][ T1] ? find_next_bit+0x107/0x130 [ 30.184932][ T1] workqueue_init+0x690/0x71e [ 30.184932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.184932][ T1] ? rest_init+0x37b/0x37b [ 30.184932][ T1] kernel_init+0x12/0x1c5 [ 30.184932][ T1] ret_from_fork+0x24/0x30 [ 30.184960][ T2] mmdrop (____ptrval____) before 4 [ 30.194967][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.202024][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.204932][ T2] Call Trace: [ 30.204932][ T2] dump_stack+0x172/0x1f0 [ 30.204932][ T2] finish_task_switch+0x239/0x790 [ 30.204932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.204932][ T2] __schedule+0x7d3/0x1580 [ 30.204932][ T2] ? __sched_text_start+0x8/0x8 [ 30.204932][ T2] schedule+0xa8/0x260 [ 30.204932][ T2] kthreadd+0x5cc/0x740 [ 30.204932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.204932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.204932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.204932][ T2] ret_from_fork+0x24/0x30 [ 30.204981][ T2] mmgrab (____ptrval____) to 4 [ 30.209961][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.214932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.214932][ T2] Call Trace: [ 30.214932][ T2] dump_stack+0x172/0x1f0 [ 30.214932][ T2] __schedule+0xd03/0x1580 [ 30.214932][ T2] ? __sched_text_start+0x8/0x8 [ 30.214932][ T2] schedule+0xa8/0x260 [ 30.214932][ T2] kthreadd+0x5cc/0x740 [ 30.214932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.214932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.214932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.214932][ T2] ret_from_fork+0x24/0x30 [ 30.214961][ T7] mmdrop (____ptrval____) before 4 [ 30.224971][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.232317][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.234932][ T7] Call Trace: [ 30.234932][ T7] dump_stack+0x172/0x1f0 [ 30.234932][ T7] finish_task_switch+0x239/0x790 [ 30.234932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.234932][ T7] __schedule+0x7d3/0x1580 [ 30.234932][ T7] ? __sched_text_start+0x8/0x8 [ 30.234932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.234932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.234932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.234932][ T7] ? kthread_data+0x58/0xc0 [ 30.234932][ T7] schedule+0xa8/0x260 [ 30.234932][ T7] worker_thread+0x248/0xe40 [ 30.234932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.234932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.234932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.234932][ T7] kthread+0x354/0x420 [ 30.234932][ T7] ? process_one_work+0x1790/0x1790 [ 30.234932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.234932][ T7] ret_from_fork+0x24/0x30 [ 30.234972][ T7] mmgrab (____ptrval____) to 4 [ 30.239729][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.244932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.244932][ T7] Call Trace: [ 30.244932][ T7] dump_stack+0x172/0x1f0 [ 30.244932][ T7] __schedule+0xd03/0x1580 [ 30.244932][ T7] ? __sched_text_start+0x8/0x8 [ 30.244932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.244932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.244932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.244932][ T7] ? kthread_data+0x58/0xc0 [ 30.244932][ T7] schedule+0xa8/0x260 [ 30.244932][ T7] worker_thread+0x248/0xe40 [ 30.244932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.244932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.244932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.244932][ T7] kthread+0x354/0x420 [ 30.244932][ T7] ? process_one_work+0x1790/0x1790 [ 30.244932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.244932][ T7] ret_from_fork+0x24/0x30 [ 30.244974][ T1] mmdrop (____ptrval____) before 4 [ 30.250093][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.254932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.254932][ T1] Call Trace: [ 30.254932][ T1] dump_stack+0x172/0x1f0 [ 30.254932][ T1] finish_task_switch+0x239/0x790 [ 30.254932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.254932][ T1] __schedule+0x7d3/0x1580 [ 30.254932][ T1] ? __sched_text_start+0x8/0x8 [ 30.254932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.254932][ T1] ? preempt_schedule+0x4b/0x60 [ 30.254932][ T1] preempt_schedule_common+0x4f/0xe0 [ 30.254932][ T1] preempt_schedule+0x4b/0x60 [ 30.254932][ T1] ___preempt_schedule+0x16/0x18 [ 30.254932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.254932][ T1] try_to_wake_up+0xc8/0x13f0 [ 30.254932][ T1] ? migrate_swap_stop+0x920/0x920 [ 30.254932][ T1] ? kasan_check_read+0x11/0x20 [ 30.254932][ T1] wake_up_process+0x10/0x20 [ 30.254932][ T1] __kthread_create_on_node+0x281/0x460 [ 30.254932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.254932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.254932][ T1] ? pointer+0x750/0x750 [ 30.254932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.254932][ T1] ? process_one_work+0x1790/0x1790 [ 30.254932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.254932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.254932][ T1] ? vsprintf+0x40/0x40 [ 30.254932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.254932][ T1] create_worker+0x25c/0x570 [ 30.254932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.254932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.254932][ T1] ? find_next_bit+0x107/0x130 [ 30.254932][ T1] workqueue_init+0x690/0x71e [ 30.254932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.254932][ T1] ? rest_init+0x37b/0x37b [ 30.254932][ T1] kernel_init+0x12/0x1c5 [ 30.254932][ T1] ret_from_fork+0x24/0x30 [ 30.254991][ T1] mmgrab (____ptrval____) to 4 [ 30.259861][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.264932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.264932][ T1] Call Trace: [ 30.264932][ T1] dump_stack+0x172/0x1f0 [ 30.264932][ T1] __schedule+0xd03/0x1580 [ 30.264932][ T1] ? __sched_text_start+0x8/0x8 [ 30.264932][ T1] schedule+0xa8/0x260 [ 30.264932][ T1] schedule_timeout+0x717/0xc50 [ 30.264932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.264932][ T1] ? find_held_lock+0x35/0x130 [ 30.264932][ T1] ? usleep_range+0x170/0x170 [ 30.264932][ T1] ? kasan_check_write+0x14/0x20 [ 30.264932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.264932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.264932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.264932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.264932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.264932][ T1] ? kasan_check_read+0x11/0x20 [ 30.264932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.264932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.264932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.264932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.264932][ T1] ? kasan_check_read+0x11/0x20 [ 30.264932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.264932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.264932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.264932][ T1] ? pointer+0x750/0x750 [ 30.264932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.264932][ T1] ? process_one_work+0x1790/0x1790 [ 30.264932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.264932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.264932][ T1] ? vsprintf+0x40/0x40 [ 30.264932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.264932][ T1] create_worker+0x25c/0x570 [ 30.264932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.264932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.264932][ T1] ? find_next_bit+0x107/0x130 [ 30.264932][ T1] workqueue_init+0x690/0x71e [ 30.264932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.264932][ T1] ? rest_init+0x37b/0x37b [ 30.264932][ T1] kernel_init+0x12/0x1c5 [ 30.264932][ T1] ret_from_fork+0x24/0x30 [ 30.264960][ T2] mmdrop (____ptrval____) before 4 [ 30.274969][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.282168][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.284932][ T2] Call Trace: [ 30.284932][ T2] dump_stack+0x172/0x1f0 [ 30.284932][ T2] finish_task_switch+0x239/0x790 [ 30.284932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.284932][ T2] __schedule+0x7d3/0x1580 [ 30.284932][ T2] ? __sched_text_start+0x8/0x8 [ 30.284932][ T2] schedule+0xa8/0x260 [ 30.284932][ T2] kthreadd+0x5cc/0x740 [ 30.284932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.284932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.284932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.284932][ T2] ret_from_fork+0x24/0x30 [ 30.284974][ T2] mmgrab (____ptrval____) to 4 [ 30.289764][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.294932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.294932][ T2] Call Trace: [ 30.294932][ T2] dump_stack+0x172/0x1f0 [ 30.294932][ T2] __schedule+0xd03/0x1580 [ 30.294932][ T2] ? __sched_text_start+0x8/0x8 [ 30.294932][ T2] schedule+0xa8/0x260 [ 30.294932][ T2] kthreadd+0x5cc/0x740 [ 30.294932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.294932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.294932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.294932][ T2] ret_from_fork+0x24/0x30 [ 30.294961][ T7] mmdrop (____ptrval____) before 4 [ 30.304965][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.312616][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.314932][ T7] Call Trace: [ 30.314932][ T7] dump_stack+0x172/0x1f0 [ 30.314932][ T7] finish_task_switch+0x239/0x790 [ 30.314932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.314932][ T7] __schedule+0x7d3/0x1580 [ 30.314932][ T7] ? __sched_text_start+0x8/0x8 [ 30.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.314932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.314932][ T7] ? kthread_data+0x58/0xc0 [ 30.314932][ T7] schedule+0xa8/0x260 [ 30.314932][ T7] worker_thread+0x248/0xe40 [ 30.314932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.314932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.314932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.314932][ T7] kthread+0x354/0x420 [ 30.314932][ T7] ? process_one_work+0x1790/0x1790 [ 30.314932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.314932][ T7] ret_from_fork+0x24/0x30 [ 30.314975][ T7] mmgrab (____ptrval____) to 4 [ 30.319805][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.324932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.324932][ T7] Call Trace: [ 30.324932][ T7] dump_stack+0x172/0x1f0 [ 30.324932][ T7] __schedule+0xd03/0x1580 [ 30.324932][ T7] ? __sched_text_start+0x8/0x8 [ 30.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.324932][ T7] ? kthread_data+0x58/0xc0 [ 30.324932][ T7] schedule+0xa8/0x260 [ 30.324932][ T7] worker_thread+0x248/0xe40 [ 30.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.324932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.324932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.324932][ T7] kthread+0x354/0x420 [ 30.324932][ T7] ? process_one_work+0x1790/0x1790 [ 30.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.324932][ T7] ret_from_fork+0x24/0x30 [ 30.324960][ T2] mmdrop (____ptrval____) before 4 [ 30.334967][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.342587][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.344932][ T2] Call Trace: [ 30.344932][ T2] dump_stack+0x172/0x1f0 [ 30.344932][ T2] finish_task_switch+0x239/0x790 [ 30.344932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.344932][ T2] __schedule+0x7d3/0x1580 [ 30.344932][ T2] ? __sched_text_start+0x8/0x8 [ 30.344932][ T2] schedule+0xa8/0x260 [ 30.344932][ T2] kthreadd+0x5cc/0x740 [ 30.344932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.344932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.344932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.344932][ T2] ret_from_fork+0x24/0x30 [ 30.344972][ T2] mmgrab (____ptrval____) to 4 [ 30.349968][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.354932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.354932][ T2] Call Trace: [ 30.354932][ T2] dump_stack+0x172/0x1f0 [ 30.354932][ T2] __schedule+0xd03/0x1580 [ 30.354932][ T2] ? __sched_text_start+0x8/0x8 [ 30.354932][ T2] schedule+0xa8/0x260 [ 30.354932][ T2] kthreadd+0x5cc/0x740 [ 30.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.354932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.354932][ T2] ret_from_fork+0x24/0x30 [ 30.354961][ T7] mmdrop (____ptrval____) before 4 [ 30.364966][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.372244][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.374932][ T7] Call Trace: [ 30.374932][ T7] dump_stack+0x172/0x1f0 [ 30.374932][ T7] finish_task_switch+0x239/0x790 [ 30.374932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.374932][ T7] __schedule+0x7d3/0x1580 [ 30.374932][ T7] ? __sched_text_start+0x8/0x8 [ 30.374932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.374932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.374932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.374932][ T7] ? kthread_data+0x58/0xc0 [ 30.374932][ T7] schedule+0xa8/0x260 [ 30.374932][ T7] worker_thread+0x248/0xe40 [ 30.374932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.374932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.374932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.374932][ T7] kthread+0x354/0x420 [ 30.374932][ T7] ? process_one_work+0x1790/0x1790 [ 30.374932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.374932][ T7] ret_from_fork+0x24/0x30 [ 30.374972][ T7] mmgrab (____ptrval____) to 4 [ 30.379732][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.384932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.384932][ T7] Call Trace: [ 30.384932][ T7] dump_stack+0x172/0x1f0 [ 30.384932][ T7] __schedule+0xd03/0x1580 [ 30.384932][ T7] ? __sched_text_start+0x8/0x8 [ 30.384932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.384932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.384932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.384932][ T7] ? kthread_data+0x58/0xc0 [ 30.384932][ T7] schedule+0xa8/0x260 [ 30.384932][ T7] worker_thread+0x248/0xe40 [ 30.384932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.384932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.384932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.384932][ T7] kthread+0x354/0x420 [ 30.384932][ T7] ? process_one_work+0x1790/0x1790 [ 30.384932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.384932][ T7] ret_from_fork+0x24/0x30 [ 30.384966][ T2] mmdrop (____ptrval____) before 4 [ 30.394973][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.402857][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.404932][ T2] Call Trace: [ 30.404932][ T2] dump_stack+0x172/0x1f0 [ 30.404932][ T2] finish_task_switch+0x239/0x790 [ 30.404932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.404932][ T2] __schedule+0x7d3/0x1580 [ 30.404932][ T2] ? __sched_text_start+0x8/0x8 [ 30.404932][ T2] schedule+0xa8/0x260 [ 30.404932][ T2] kthreadd+0x5cc/0x740 [ 30.404932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.404932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.404932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.404932][ T2] ret_from_fork+0x24/0x30 [ 30.404973][ T2] mmgrab (____ptrval____) to 4 [ 30.409741][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.414932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.414932][ T2] Call Trace: [ 30.414932][ T2] dump_stack+0x172/0x1f0 [ 30.414932][ T2] __schedule+0xd03/0x1580 [ 30.414932][ T2] ? __sched_text_start+0x8/0x8 [ 30.414932][ T2] schedule+0xa8/0x260 [ 30.414932][ T2] kthreadd+0x5cc/0x740 [ 30.414932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.414932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.414932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.414932][ T2] ret_from_fork+0x24/0x30 [ 30.414961][ T7] mmdrop (____ptrval____) before 4 [ 30.424956][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.432370][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.434932][ T7] Call Trace: [ 30.434932][ T7] dump_stack+0x172/0x1f0 [ 30.434932][ T7] finish_task_switch+0x239/0x790 [ 30.434932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.434932][ T7] __schedule+0x7d3/0x1580 [ 30.434932][ T7] ? __sched_text_start+0x8/0x8 [ 30.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.434932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.434932][ T7] ? kthread_data+0x58/0xc0 [ 30.434932][ T7] schedule+0xa8/0x260 [ 30.434932][ T7] worker_thread+0x248/0xe40 [ 30.434932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.434932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.434932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.434932][ T7] kthread+0x354/0x420 [ 30.434932][ T7] ? process_one_work+0x1790/0x1790 [ 30.434932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.434932][ T7] ret_from_fork+0x24/0x30 [ 30.434972][ T7] mmgrab (____ptrval____) to 4 [ 30.439938][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.444932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.444932][ T7] Call Trace: [ 30.444932][ T7] dump_stack+0x172/0x1f0 [ 30.444932][ T7] __schedule+0xd03/0x1580 [ 30.444932][ T7] ? __sched_text_start+0x8/0x8 [ 30.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.444932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.444932][ T7] ? kthread_data+0x58/0xc0 [ 30.444932][ T7] schedule+0xa8/0x260 [ 30.444932][ T7] worker_thread+0x248/0xe40 [ 30.444932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.444932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.444932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.444932][ T7] kthread+0x354/0x420 [ 30.444932][ T7] ? process_one_work+0x1790/0x1790 [ 30.444932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.444932][ T7] ret_from_fork+0x24/0x30 [ 30.444961][ T2] mmdrop (____ptrval____) before 4 [ 30.454973][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.462199][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.464932][ T2] Call Trace: [ 30.464932][ T2] dump_stack+0x172/0x1f0 [ 30.464932][ T2] finish_task_switch+0x239/0x790 [ 30.464932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.464932][ T2] __schedule+0x7d3/0x1580 [ 30.464932][ T2] ? __sched_text_start+0x8/0x8 [ 30.464932][ T2] schedule+0xa8/0x260 [ 30.464932][ T2] kthreadd+0x5cc/0x740 [ 30.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.464932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.464932][ T2] ret_from_fork+0x24/0x30 [ 30.464971][ T2] mmgrab (____ptrval____) to 4 [ 30.469768][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.474932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.474932][ T2] Call Trace: [ 30.474932][ T2] dump_stack+0x172/0x1f0 [ 30.474932][ T2] __schedule+0xd03/0x1580 [ 30.474932][ T2] ? __sched_text_start+0x8/0x8 [ 30.474932][ T2] schedule+0xa8/0x260 [ 30.474932][ T2] kthreadd+0x5cc/0x740 [ 30.474932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.474932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.474932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.474932][ T2] ret_from_fork+0x24/0x30 [ 30.474960][ T7] mmdrop (____ptrval____) before 4 [ 30.484967][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.492417][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.494932][ T7] Call Trace: [ 30.494932][ T7] dump_stack+0x172/0x1f0 [ 30.494932][ T7] finish_task_switch+0x239/0x790 [ 30.494932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.494932][ T7] __schedule+0x7d3/0x1580 [ 30.494932][ T7] ? __sched_text_start+0x8/0x8 [ 30.494932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.494932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.494932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.494932][ T7] ? kthread_data+0x58/0xc0 [ 30.494932][ T7] schedule+0xa8/0x260 [ 30.494932][ T7] worker_thread+0x248/0xe40 [ 30.494932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.494932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.494932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.494932][ T7] kthread+0x354/0x420 [ 30.494932][ T7] ? process_one_work+0x1790/0x1790 [ 30.494932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.494932][ T7] ret_from_fork+0x24/0x30 [ 30.494971][ T7] mmgrab (____ptrval____) to 4 [ 30.499735][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.504932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.504932][ T7] Call Trace: [ 30.504932][ T7] dump_stack+0x172/0x1f0 [ 30.504932][ T7] __schedule+0xd03/0x1580 [ 30.504932][ T7] ? __sched_text_start+0x8/0x8 [ 30.504932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.504932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.504932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.504932][ T7] ? kthread_data+0x58/0xc0 [ 30.504932][ T7] schedule+0xa8/0x260 [ 30.504932][ T7] worker_thread+0x248/0xe40 [ 30.504932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.504932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.504932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.504932][ T7] kthread+0x354/0x420 [ 30.504932][ T7] ? process_one_work+0x1790/0x1790 [ 30.504932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.504932][ T7] ret_from_fork+0x24/0x30 [ 30.504959][ T2] mmdrop (____ptrval____) before 4 [ 30.514962][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.522277][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.524932][ T2] Call Trace: [ 30.524932][ T2] dump_stack+0x172/0x1f0 [ 30.524932][ T2] finish_task_switch+0x239/0x790 [ 30.524932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.524932][ T2] __schedule+0x7d3/0x1580 [ 30.524932][ T2] ? __sched_text_start+0x8/0x8 [ 30.524932][ T2] schedule+0xa8/0x260 [ 30.524932][ T2] kthreadd+0x5cc/0x740 [ 30.524932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.524932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.524932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.524932][ T2] ret_from_fork+0x24/0x30 [ 30.524972][ T2] mmgrab (____ptrval____) to 4 [ 30.529820][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.534932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.534932][ T2] Call Trace: [ 30.534932][ T2] dump_stack+0x172/0x1f0 [ 30.534932][ T2] __schedule+0xd03/0x1580 [ 30.534932][ T2] ? __sched_text_start+0x8/0x8 [ 30.534932][ T2] schedule+0xa8/0x260 [ 30.534932][ T2] kthreadd+0x5cc/0x740 [ 30.534932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.534932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.534932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.534932][ T2] ret_from_fork+0x24/0x30 [ 30.534959][ T7] mmdrop (____ptrval____) before 4 [ 30.540223][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.544932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.544932][ T7] Call Trace: [ 30.544932][ T7] dump_stack+0x172/0x1f0 [ 30.544932][ T7] finish_task_switch+0x239/0x790 [ 30.544932][ T7] ? dump_stack+0x1de/0x1f0 [ 30.544932][ T7] __schedule+0x7d3/0x1580 [ 30.544932][ T7] ? __sched_text_start+0x8/0x8 [ 30.544932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.544932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.544932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.544932][ T7] ? kthread_data+0x58/0xc0 [ 30.544932][ T7] schedule+0xa8/0x260 [ 30.544932][ T7] worker_thread+0x248/0xe40 [ 30.544932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.544932][ T7] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 30.544932][ T7] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 30.544932][ T7] kthread+0x354/0x420 [ 30.544932][ T7] ? process_one_work+0x1790/0x1790 [ 30.544932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.544932][ T7] ret_from_fork+0x24/0x30 [ 30.545000][ T7] mmgrab (____ptrval____) to 4 [ 30.549935][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 30.554932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.554932][ T7] Workqueue: 0x0 (events) [ 30.554932][ T7] Call Trace: [ 30.554932][ T7] dump_stack+0x172/0x1f0 [ 30.554932][ T7] __schedule+0xd03/0x1580 [ 30.554932][ T7] ? __sched_text_start+0x8/0x8 [ 30.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.554932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.554932][ T7] ? kthread_data+0x58/0xc0 [ 30.554932][ T7] schedule+0xa8/0x260 [ 30.554932][ T7] worker_thread+0x248/0xe40 [ 30.554932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 30.554932][ T7] kthread+0x354/0x420 [ 30.554932][ T7] ? process_one_work+0x1790/0x1790 [ 30.554932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.554932][ T7] ret_from_fork+0x24/0x30 [ 30.554959][ T2] mmdrop (____ptrval____) before 4 [ 30.560280][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.564932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.564932][ T2] Call Trace: [ 30.564932][ T2] dump_stack+0x172/0x1f0 [ 30.564932][ T2] finish_task_switch+0x239/0x790 [ 30.564932][ T2] ? dump_stack+0x1de/0x1f0 [ 30.564932][ T2] __schedule+0x7d3/0x1580 [ 30.564932][ T2] ? __sched_text_start+0x8/0x8 [ 30.564932][ T2] schedule+0xa8/0x260 [ 30.564932][ T2] kthreadd+0x5cc/0x740 [ 30.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.564932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.564932][ T2] ret_from_fork+0x24/0x30 [ 30.565462][ T2] mmgrab (____ptrval____) to 4 [ 30.570493][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.574932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.574932][ T2] Call Trace: [ 30.574932][ T2] dump_stack+0x172/0x1f0 [ 30.574932][ T2] __schedule+0xd03/0x1580 [ 30.574932][ T2] ? __sched_text_start+0x8/0x8 [ 30.574932][ T2] schedule+0xa8/0x260 [ 30.574932][ T2] kthreadd+0x5cc/0x740 [ 30.574932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.574932][ T2] ? calculate_sigpending+0x87/0xa0 [ 30.574932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 30.574932][ T2] ret_from_fork+0x24/0x30 [ 30.574957][ T8] mmdrop (____ptrval____) before 4 [ 30.580100][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.584932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.584932][ T8] Call Trace: [ 30.584932][ T8] dump_stack+0x172/0x1f0 [ 30.584932][ T8] finish_task_switch+0x239/0x790 [ 30.584932][ T8] ? __switch_to+0x12e/0xf70 [ 30.584932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.584932][ T8] schedule_tail+0xe/0x130 [ 30.584932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.584932][ T8] ret_from_fork+0x8/0x30 [ 30.584998][ T8] mmgrab (____ptrval____) to 4 [ 30.589758][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.594932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.594932][ T8] Call Trace: [ 30.594932][ T8] dump_stack+0x172/0x1f0 [ 30.594932][ T8] __schedule+0xd03/0x1580 [ 30.594932][ T8] ? __sched_text_start+0x8/0x8 [ 30.594932][ T8] ? complete+0x61/0x80 [ 30.594932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.594932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.594932][ T8] preempt_schedule+0x4b/0x60 [ 30.594932][ T8] ___preempt_schedule+0x16/0x18 [ 30.594932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.594932][ T8] complete+0x61/0x80 [ 30.594932][ T8] kthread+0x275/0x420 [ 30.594932][ T8] ? process_one_work+0x1790/0x1790 [ 30.594932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.594932][ T8] ret_from_fork+0x24/0x30 [ 30.594960][ T1] mmdrop (____ptrval____) before 4 [ 30.600196][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.604932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.604932][ T1] Call Trace: [ 30.604932][ T1] dump_stack+0x172/0x1f0 [ 30.604932][ T1] finish_task_switch+0x239/0x790 [ 30.604932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.604932][ T1] __schedule+0x7d3/0x1580 [ 30.604932][ T1] ? __sched_text_start+0x8/0x8 [ 30.604932][ T1] schedule+0xa8/0x260 [ 30.604932][ T1] schedule_timeout+0x717/0xc50 [ 30.604932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.604932][ T1] ? find_held_lock+0x35/0x130 [ 30.604932][ T1] ? usleep_range+0x170/0x170 [ 30.604932][ T1] ? kasan_check_write+0x14/0x20 [ 30.604932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.604932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.604932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.604932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.604932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.604932][ T1] ? kasan_check_read+0x11/0x20 [ 30.604932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.604932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.604932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.604932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.604932][ T1] ? kasan_check_read+0x11/0x20 [ 30.604932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.604932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.604932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.604932][ T1] ? pointer+0x750/0x750 [ 30.604932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.604932][ T1] ? process_one_work+0x1790/0x1790 [ 30.604932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.604932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.604932][ T1] ? vsprintf+0x40/0x40 [ 30.604932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.604932][ T1] create_worker+0x25c/0x570 [ 30.604932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.604932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.604932][ T1] ? find_next_bit+0x107/0x130 [ 30.604932][ T1] workqueue_init+0x690/0x71e [ 30.604932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.604932][ T1] ? rest_init+0x37b/0x37b [ 30.604932][ T1] kernel_init+0x12/0x1c5 [ 30.604932][ T1] ret_from_fork+0x24/0x30 [ 30.604974][ T1] mmgrab (____ptrval____) to 4 [ 30.609848][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.614932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.614932][ T1] Call Trace: [ 30.614932][ T1] dump_stack+0x172/0x1f0 [ 30.614932][ T1] __schedule+0xd03/0x1580 [ 30.614932][ T1] ? __sched_text_start+0x8/0x8 [ 30.614932][ T1] schedule+0xa8/0x260 [ 30.614932][ T1] schedule_timeout+0x717/0xc50 [ 30.614932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.614932][ T1] ? find_held_lock+0x35/0x130 [ 30.614932][ T1] ? usleep_range+0x170/0x170 [ 30.614932][ T1] ? kasan_check_write+0x14/0x20 [ 30.614932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.614932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.614932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.614932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.614932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.614932][ T1] ? kasan_check_read+0x11/0x20 [ 30.614932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.614932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.614932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.614932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.614932][ T1] ? kasan_check_read+0x11/0x20 [ 30.614932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.614932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.614932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.614932][ T1] ? pointer+0x750/0x750 [ 30.614932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.614932][ T1] ? process_one_work+0x1790/0x1790 [ 30.614932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.614932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.614932][ T1] ? vsprintf+0x40/0x40 [ 30.614932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.614932][ T1] create_worker+0x25c/0x570 [ 30.614932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.614932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.614932][ T1] ? find_next_bit+0x107/0x130 [ 30.614932][ T1] workqueue_init+0x690/0x71e [ 30.614932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.614932][ T1] ? rest_init+0x37b/0x37b [ 30.614932][ T1] kernel_init+0x12/0x1c5 [ 30.614932][ T1] ret_from_fork+0x24/0x30 [ 30.614962][ T8] mmdrop (____ptrval____) before 4 [ 30.620079][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.624932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.624932][ T8] Call Trace: [ 30.624932][ T8] dump_stack+0x172/0x1f0 [ 30.624932][ T8] finish_task_switch+0x239/0x790 [ 30.624932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.624932][ T8] __schedule+0x7d3/0x1580 [ 30.624932][ T8] ? __sched_text_start+0x8/0x8 [ 30.624932][ T8] ? complete+0x61/0x80 [ 30.624932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.624932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.624932][ T8] preempt_schedule+0x4b/0x60 [ 30.624932][ T8] ___preempt_schedule+0x16/0x18 [ 30.624932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.624932][ T8] complete+0x61/0x80 [ 30.624932][ T8] kthread+0x275/0x420 [ 30.624932][ T8] ? process_one_work+0x1790/0x1790 [ 30.624932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.624932][ T8] ret_from_fork+0x24/0x30 [ 30.624975][ T8] mmgrab (____ptrval____) to 4 [ 30.629863][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.634932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.634932][ T8] Call Trace: [ 30.634932][ T8] dump_stack+0x172/0x1f0 [ 30.634932][ T8] __schedule+0xd03/0x1580 [ 30.634932][ T8] ? __sched_text_start+0x8/0x8 [ 30.634932][ T8] ? complete+0x61/0x80 [ 30.634932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.634932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.634932][ T8] preempt_schedule+0x4b/0x60 [ 30.634932][ T8] ___preempt_schedule+0x16/0x18 [ 30.634932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.634932][ T8] complete+0x61/0x80 [ 30.634932][ T8] kthread+0x275/0x420 [ 30.634932][ T8] ? process_one_work+0x1790/0x1790 [ 30.634932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.634932][ T8] ret_from_fork+0x24/0x30 [ 30.634963][ T1] mmdrop (____ptrval____) before 4 [ 30.640087][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.644932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.644932][ T1] Call Trace: [ 30.644932][ T1] dump_stack+0x172/0x1f0 [ 30.644932][ T1] finish_task_switch+0x239/0x790 [ 30.644932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.644932][ T1] __schedule+0x7d3/0x1580 [ 30.644932][ T1] ? __sched_text_start+0x8/0x8 [ 30.644932][ T1] schedule+0xa8/0x260 [ 30.644932][ T1] schedule_timeout+0x717/0xc50 [ 30.644932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.644932][ T1] ? find_held_lock+0x35/0x130 [ 30.644932][ T1] ? usleep_range+0x170/0x170 [ 30.644932][ T1] ? kasan_check_write+0x14/0x20 [ 30.644932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.644932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.644932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.644932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.644932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.644932][ T1] ? kasan_check_read+0x11/0x20 [ 30.644932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.644932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.644932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.644932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.644932][ T1] ? kasan_check_read+0x11/0x20 [ 30.644932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.644932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.644932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.644932][ T1] ? pointer+0x750/0x750 [ 30.644932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.644932][ T1] ? process_one_work+0x1790/0x1790 [ 30.644932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.644932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.644932][ T1] ? vsprintf+0x40/0x40 [ 30.644932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.644932][ T1] create_worker+0x25c/0x570 [ 30.644932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.644932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.644932][ T1] ? find_next_bit+0x107/0x130 [ 30.644932][ T1] workqueue_init+0x690/0x71e [ 30.644932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.644932][ T1] ? rest_init+0x37b/0x37b [ 30.644932][ T1] kernel_init+0x12/0x1c5 [ 30.644932][ T1] ret_from_fork+0x24/0x30 [ 30.644974][ T1] mmgrab (____ptrval____) to 4 [ 30.649745][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.654932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.654932][ T1] Call Trace: [ 30.654932][ T1] dump_stack+0x172/0x1f0 [ 30.654932][ T1] __schedule+0xd03/0x1580 [ 30.654932][ T1] ? __sched_text_start+0x8/0x8 [ 30.654932][ T1] schedule+0xa8/0x260 [ 30.654932][ T1] schedule_timeout+0x717/0xc50 [ 30.654932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.654932][ T1] ? find_held_lock+0x35/0x130 [ 30.654932][ T1] ? usleep_range+0x170/0x170 [ 30.654932][ T1] ? kasan_check_write+0x14/0x20 [ 30.654932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.654932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.654932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.654932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.654932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.654932][ T1] ? kasan_check_read+0x11/0x20 [ 30.654932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.654932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.654932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.654932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.654932][ T1] ? kasan_check_read+0x11/0x20 [ 30.654932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.654932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.654932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.654932][ T1] ? pointer+0x750/0x750 [ 30.654932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.654932][ T1] ? process_one_work+0x1790/0x1790 [ 30.654932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.654932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.654932][ T1] ? vsprintf+0x40/0x40 [ 30.654932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.654932][ T1] create_worker+0x25c/0x570 [ 30.654932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.654932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.654932][ T1] ? find_next_bit+0x107/0x130 [ 30.654932][ T1] workqueue_init+0x690/0x71e [ 30.654932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.654932][ T1] ? rest_init+0x37b/0x37b [ 30.654932][ T1] kernel_init+0x12/0x1c5 [ 30.654932][ T1] ret_from_fork+0x24/0x30 [ 30.654962][ T8] mmdrop (____ptrval____) before 4 [ 30.660147][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.664932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.664932][ T8] Call Trace: [ 30.664932][ T8] dump_stack+0x172/0x1f0 [ 30.664932][ T8] finish_task_switch+0x239/0x790 [ 30.664932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.664932][ T8] __schedule+0x7d3/0x1580 [ 30.664932][ T8] ? __sched_text_start+0x8/0x8 [ 30.664932][ T8] ? complete+0x61/0x80 [ 30.664932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.664932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.664932][ T8] preempt_schedule+0x4b/0x60 [ 30.664932][ T8] ___preempt_schedule+0x16/0x18 [ 30.664932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.664932][ T8] complete+0x61/0x80 [ 30.664932][ T8] kthread+0x275/0x420 [ 30.664932][ T8] ? process_one_work+0x1790/0x1790 [ 30.664932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.664932][ T8] ret_from_fork+0x24/0x30 [ 30.664980][ T8] mmgrab (____ptrval____) to 4 [ 30.670830][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.674932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.674932][ T8] Call Trace: [ 30.674932][ T8] dump_stack+0x172/0x1f0 [ 30.674932][ T8] __schedule+0xd03/0x1580 [ 30.674932][ T8] ? __sched_text_start+0x8/0x8 [ 30.674932][ T8] ? complete+0x61/0x80 [ 30.674932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.674932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.674932][ T8] preempt_schedule+0x4b/0x60 [ 30.674932][ T8] ___preempt_schedule+0x16/0x18 [ 30.674932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.674932][ T8] complete+0x61/0x80 [ 30.674932][ T8] kthread+0x275/0x420 [ 30.674932][ T8] ? process_one_work+0x1790/0x1790 [ 30.674932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.674932][ T8] ret_from_fork+0x24/0x30 [ 30.674963][ T1] mmdrop (____ptrval____) before 4 [ 30.680921][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.684932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.684932][ T1] Call Trace: [ 30.684932][ T1] dump_stack+0x172/0x1f0 [ 30.684932][ T1] finish_task_switch+0x239/0x790 [ 30.684932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.684932][ T1] __schedule+0x7d3/0x1580 [ 30.684932][ T1] ? __sched_text_start+0x8/0x8 [ 30.684932][ T1] schedule+0xa8/0x260 [ 30.684932][ T1] schedule_timeout+0x717/0xc50 [ 30.684932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.684932][ T1] ? find_held_lock+0x35/0x130 [ 30.684932][ T1] ? usleep_range+0x170/0x170 [ 30.684932][ T1] ? kasan_check_write+0x14/0x20 [ 30.684932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.684932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.684932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.684932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.684932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.684932][ T1] ? kasan_check_read+0x11/0x20 [ 30.684932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.684932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.684932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.684932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.684932][ T1] ? kasan_check_read+0x11/0x20 [ 30.684932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.684932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.684932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.684932][ T1] ? pointer+0x750/0x750 [ 30.684932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.684932][ T1] ? process_one_work+0x1790/0x1790 [ 30.684932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.684932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.684932][ T1] ? vsprintf+0x40/0x40 [ 30.684932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.684932][ T1] create_worker+0x25c/0x570 [ 30.684932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.684932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.684932][ T1] ? find_next_bit+0x107/0x130 [ 30.684932][ T1] workqueue_init+0x690/0x71e [ 30.684932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.684932][ T1] ? rest_init+0x37b/0x37b [ 30.684932][ T1] kernel_init+0x12/0x1c5 [ 30.684932][ T1] ret_from_fork+0x24/0x30 [ 30.684990][ T1] mmgrab (____ptrval____) to 4 [ 30.690048][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.694932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.694932][ T1] Call Trace: [ 30.694932][ T1] dump_stack+0x172/0x1f0 [ 30.694932][ T1] __schedule+0xd03/0x1580 [ 30.694932][ T1] ? __sched_text_start+0x8/0x8 [ 30.694932][ T1] schedule+0xa8/0x260 [ 30.694932][ T1] schedule_timeout+0x717/0xc50 [ 30.694932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.694932][ T1] ? find_held_lock+0x35/0x130 [ 30.694932][ T1] ? usleep_range+0x170/0x170 [ 30.694932][ T1] ? kasan_check_write+0x14/0x20 [ 30.694932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.694932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.694932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.694932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.694932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.694932][ T1] ? kasan_check_read+0x11/0x20 [ 30.694932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.694932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.694932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.694932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.694932][ T1] ? kasan_check_read+0x11/0x20 [ 30.694932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.694932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.694932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.694932][ T1] ? pointer+0x750/0x750 [ 30.694932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.694932][ T1] ? process_one_work+0x1790/0x1790 [ 30.694932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.694932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.694932][ T1] ? vsprintf+0x40/0x40 [ 30.694932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.694932][ T1] create_worker+0x25c/0x570 [ 30.694932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.694932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.694932][ T1] ? find_next_bit+0x107/0x130 [ 30.694932][ T1] workqueue_init+0x690/0x71e [ 30.694932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.694932][ T1] ? rest_init+0x37b/0x37b [ 30.694932][ T1] kernel_init+0x12/0x1c5 [ 30.694932][ T1] ret_from_fork+0x24/0x30 [ 30.694970][ T8] mmdrop (____ptrval____) before 4 [ 30.700216][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.704932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.704932][ T8] Call Trace: [ 30.704932][ T8] dump_stack+0x172/0x1f0 [ 30.704932][ T8] finish_task_switch+0x239/0x790 [ 30.704932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.704932][ T8] __schedule+0x7d3/0x1580 [ 30.704932][ T8] ? __sched_text_start+0x8/0x8 [ 30.704932][ T8] ? complete+0x61/0x80 [ 30.704932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.704932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.704932][ T8] preempt_schedule+0x4b/0x60 [ 30.704932][ T8] ___preempt_schedule+0x16/0x18 [ 30.704932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.704932][ T8] complete+0x61/0x80 [ 30.704932][ T8] kthread+0x275/0x420 [ 30.704932][ T8] ? process_one_work+0x1790/0x1790 [ 30.704932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.704932][ T8] ret_from_fork+0x24/0x30 [ 30.704973][ T8] mmgrab (____ptrval____) to 4 [ 30.709739][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.714932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.714932][ T8] Call Trace: [ 30.714932][ T8] dump_stack+0x172/0x1f0 [ 30.714932][ T8] __schedule+0xd03/0x1580 [ 30.714932][ T8] ? __sched_text_start+0x8/0x8 [ 30.714932][ T8] ? complete+0x61/0x80 [ 30.714932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.714932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.714932][ T8] preempt_schedule+0x4b/0x60 [ 30.714932][ T8] ___preempt_schedule+0x16/0x18 [ 30.714932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.714932][ T8] complete+0x61/0x80 [ 30.714932][ T8] kthread+0x275/0x420 [ 30.714932][ T8] ? process_one_work+0x1790/0x1790 [ 30.714932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.714932][ T8] ret_from_fork+0x24/0x30 [ 30.714963][ T1] mmdrop (____ptrval____) before 4 [ 30.720082][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.724932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.724932][ T1] Call Trace: [ 30.724932][ T1] dump_stack+0x172/0x1f0 [ 30.724932][ T1] finish_task_switch+0x239/0x790 [ 30.724932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.724932][ T1] __schedule+0x7d3/0x1580 [ 30.724932][ T1] ? __sched_text_start+0x8/0x8 [ 30.724932][ T1] schedule+0xa8/0x260 [ 30.724932][ T1] schedule_timeout+0x717/0xc50 [ 30.724932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.724932][ T1] ? find_held_lock+0x35/0x130 [ 30.724932][ T1] ? usleep_range+0x170/0x170 [ 30.724932][ T1] ? kasan_check_write+0x14/0x20 [ 30.724932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.724932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.724932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.724932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.724932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.724932][ T1] ? kasan_check_read+0x11/0x20 [ 30.724932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.724932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.724932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.724932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.724932][ T1] ? kasan_check_read+0x11/0x20 [ 30.724932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.724932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.724932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.724932][ T1] ? pointer+0x750/0x750 [ 30.724932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.724932][ T1] ? process_one_work+0x1790/0x1790 [ 30.724932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.724932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.724932][ T1] ? vsprintf+0x40/0x40 [ 30.724932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.724932][ T1] create_worker+0x25c/0x570 [ 30.724932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.724932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.724932][ T1] ? find_next_bit+0x107/0x130 [ 30.724932][ T1] workqueue_init+0x690/0x71e [ 30.724932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.724932][ T1] ? rest_init+0x37b/0x37b [ 30.724932][ T1] kernel_init+0x12/0x1c5 [ 30.724932][ T1] ret_from_fork+0x24/0x30 [ 30.724977][ T1] mmgrab (____ptrval____) to 4 [ 30.730004][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.734932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.734932][ T1] Call Trace: [ 30.734932][ T1] dump_stack+0x172/0x1f0 [ 30.734932][ T1] __schedule+0xd03/0x1580 [ 30.734932][ T1] ? __sched_text_start+0x8/0x8 [ 30.734932][ T1] schedule+0xa8/0x260 [ 30.734932][ T1] schedule_timeout+0x717/0xc50 [ 30.734932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.734932][ T1] ? find_held_lock+0x35/0x130 [ 30.734932][ T1] ? usleep_range+0x170/0x170 [ 30.734932][ T1] ? kasan_check_write+0x14/0x20 [ 30.734932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.734932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.734932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.734932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.734932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.734932][ T1] ? kasan_check_read+0x11/0x20 [ 30.734932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.734932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.734932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.734932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.734932][ T1] ? kasan_check_read+0x11/0x20 [ 30.734932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.734932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.734932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.734932][ T1] ? pointer+0x750/0x750 [ 30.734932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.734932][ T1] ? process_one_work+0x1790/0x1790 [ 30.734932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.734932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.734932][ T1] ? vsprintf+0x40/0x40 [ 30.734932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.734932][ T1] create_worker+0x25c/0x570 [ 30.734932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.734932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.734932][ T1] ? find_next_bit+0x107/0x130 [ 30.734932][ T1] workqueue_init+0x690/0x71e [ 30.734932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.734932][ T1] ? rest_init+0x37b/0x37b [ 30.734932][ T1] kernel_init+0x12/0x1c5 [ 30.734932][ T1] ret_from_fork+0x24/0x30 [ 30.734962][ T8] mmdrop (____ptrval____) before 4 [ 30.740074][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.744932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.744932][ T8] Call Trace: [ 30.744932][ T8] dump_stack+0x172/0x1f0 [ 30.744932][ T8] finish_task_switch+0x239/0x790 [ 30.744932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.744932][ T8] __schedule+0x7d3/0x1580 [ 30.744932][ T8] ? __sched_text_start+0x8/0x8 [ 30.744932][ T8] ? complete+0x61/0x80 [ 30.744932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.744932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.744932][ T8] preempt_schedule+0x4b/0x60 [ 30.744932][ T8] ___preempt_schedule+0x16/0x18 [ 30.744932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.744932][ T8] complete+0x61/0x80 [ 30.744932][ T8] kthread+0x275/0x420 [ 30.744932][ T8] ? process_one_work+0x1790/0x1790 [ 30.744932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.744932][ T8] ret_from_fork+0x24/0x30 [ 30.744988][ T8] mmgrab (____ptrval____) to 4 [ 30.749755][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.754932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.754932][ T8] Call Trace: [ 30.754932][ T8] dump_stack+0x172/0x1f0 [ 30.754932][ T8] __schedule+0xd03/0x1580 [ 30.754932][ T8] ? __sched_text_start+0x8/0x8 [ 30.754932][ T8] ? complete+0x61/0x80 [ 30.754932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.754932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.754932][ T8] preempt_schedule+0x4b/0x60 [ 30.754932][ T8] ___preempt_schedule+0x16/0x18 [ 30.754932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.754932][ T8] complete+0x61/0x80 [ 30.754932][ T8] kthread+0x275/0x420 [ 30.754932][ T8] ? process_one_work+0x1790/0x1790 [ 30.754932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.754932][ T8] ret_from_fork+0x24/0x30 [ 30.754961][ T1] mmdrop (____ptrval____) before 4 [ 30.760196][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.764932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.764932][ T1] Call Trace: [ 30.764932][ T1] dump_stack+0x172/0x1f0 [ 30.764932][ T1] finish_task_switch+0x239/0x790 [ 30.764932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.764932][ T1] __schedule+0x7d3/0x1580 [ 30.764932][ T1] ? __sched_text_start+0x8/0x8 [ 30.764932][ T1] schedule+0xa8/0x260 [ 30.764932][ T1] schedule_timeout+0x717/0xc50 [ 30.764932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.764932][ T1] ? find_held_lock+0x35/0x130 [ 30.764932][ T1] ? usleep_range+0x170/0x170 [ 30.764932][ T1] ? kasan_check_write+0x14/0x20 [ 30.764932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.764932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.764932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.764932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.764932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.764932][ T1] ? kasan_check_read+0x11/0x20 [ 30.764932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.764932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.764932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.764932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.764932][ T1] ? kasan_check_read+0x11/0x20 [ 30.764932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.764932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.764932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.764932][ T1] ? pointer+0x750/0x750 [ 30.764932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.764932][ T1] ? process_one_work+0x1790/0x1790 [ 30.764932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.764932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.764932][ T1] ? vsprintf+0x40/0x40 [ 30.764932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.764932][ T1] create_worker+0x25c/0x570 [ 30.764932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.764932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.764932][ T1] ? find_next_bit+0x107/0x130 [ 30.764932][ T1] workqueue_init+0x690/0x71e [ 30.764932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.764932][ T1] ? rest_init+0x37b/0x37b [ 30.764932][ T1] kernel_init+0x12/0x1c5 [ 30.764932][ T1] ret_from_fork+0x24/0x30 [ 30.764975][ T1] mmgrab (____ptrval____) to 4 [ 30.770161][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.774932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.774932][ T1] Call Trace: [ 30.774932][ T1] dump_stack+0x172/0x1f0 [ 30.774932][ T1] __schedule+0xd03/0x1580 [ 30.774932][ T1] ? __sched_text_start+0x8/0x8 [ 30.774932][ T1] schedule+0xa8/0x260 [ 30.774932][ T1] schedule_timeout+0x717/0xc50 [ 30.774932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.774932][ T1] ? find_held_lock+0x35/0x130 [ 30.774932][ T1] ? usleep_range+0x170/0x170 [ 30.774932][ T1] ? kasan_check_write+0x14/0x20 [ 30.774932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.774932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.774932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.774932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.774932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.774932][ T1] ? kasan_check_read+0x11/0x20 [ 30.774932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.774932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.774932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.774932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.774932][ T1] ? kasan_check_read+0x11/0x20 [ 30.774932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.774932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.774932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.774932][ T1] ? pointer+0x750/0x750 [ 30.774932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.774932][ T1] ? process_one_work+0x1790/0x1790 [ 30.774932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.774932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.774932][ T1] ? vsprintf+0x40/0x40 [ 30.774932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.774932][ T1] create_worker+0x25c/0x570 [ 30.774932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.774932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.774932][ T1] ? find_next_bit+0x107/0x130 [ 30.774932][ T1] workqueue_init+0x690/0x71e [ 30.774932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.774932][ T1] ? rest_init+0x37b/0x37b [ 30.774932][ T1] kernel_init+0x12/0x1c5 [ 30.774932][ T1] ret_from_fork+0x24/0x30 [ 30.774961][ T8] mmdrop (____ptrval____) before 4 [ 30.780078][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.784932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.784932][ T8] Call Trace: [ 30.784932][ T8] dump_stack+0x172/0x1f0 [ 30.784932][ T8] finish_task_switch+0x239/0x790 [ 30.784932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.784932][ T8] __schedule+0x7d3/0x1580 [ 30.784932][ T8] ? __sched_text_start+0x8/0x8 [ 30.784932][ T8] ? complete+0x61/0x80 [ 30.784932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.784932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.784932][ T8] preempt_schedule+0x4b/0x60 [ 30.784932][ T8] ___preempt_schedule+0x16/0x18 [ 30.784932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.784932][ T8] complete+0x61/0x80 [ 30.784932][ T8] kthread+0x275/0x420 [ 30.784932][ T8] ? process_one_work+0x1790/0x1790 [ 30.784932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.784932][ T8] ret_from_fork+0x24/0x30 [ 30.784975][ T8] mmgrab (____ptrval____) to 4 [ 30.789740][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.794932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.794932][ T8] Call Trace: [ 30.794932][ T8] dump_stack+0x172/0x1f0 [ 30.794932][ T8] __schedule+0xd03/0x1580 [ 30.794932][ T8] ? __sched_text_start+0x8/0x8 [ 30.794932][ T8] ? complete+0x61/0x80 [ 30.794932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.794932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.794932][ T8] preempt_schedule+0x4b/0x60 [ 30.794932][ T8] ___preempt_schedule+0x16/0x18 [ 30.794932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.794932][ T8] complete+0x61/0x80 [ 30.794932][ T8] kthread+0x275/0x420 [ 30.794932][ T8] ? process_one_work+0x1790/0x1790 [ 30.794932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.794932][ T8] ret_from_fork+0x24/0x30 [ 30.794963][ T1] mmdrop (____ptrval____) before 4 [ 30.800118][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.804932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.804932][ T1] Call Trace: [ 30.804932][ T1] dump_stack+0x172/0x1f0 [ 30.804932][ T1] finish_task_switch+0x239/0x790 [ 30.804932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.804932][ T1] __schedule+0x7d3/0x1580 [ 30.804932][ T1] ? __sched_text_start+0x8/0x8 [ 30.804932][ T1] schedule+0xa8/0x260 [ 30.804932][ T1] schedule_timeout+0x717/0xc50 [ 30.804932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.804932][ T1] ? find_held_lock+0x35/0x130 [ 30.804932][ T1] ? usleep_range+0x170/0x170 [ 30.804932][ T1] ? kasan_check_write+0x14/0x20 [ 30.804932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.804932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.804932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.804932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.804932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.804932][ T1] ? kasan_check_read+0x11/0x20 [ 30.804932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.804932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.804932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.804932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.804932][ T1] ? kasan_check_read+0x11/0x20 [ 30.804932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.804932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.804932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.804932][ T1] ? pointer+0x750/0x750 [ 30.804932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.804932][ T1] ? process_one_work+0x1790/0x1790 [ 30.804932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.804932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.804932][ T1] ? vsprintf+0x40/0x40 [ 30.804932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.804932][ T1] create_worker+0x25c/0x570 [ 30.804932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.804932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.804932][ T1] ? find_next_bit+0x107/0x130 [ 30.804932][ T1] workqueue_init+0x690/0x71e [ 30.804932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.804932][ T1] ? rest_init+0x37b/0x37b [ 30.804932][ T1] kernel_init+0x12/0x1c5 [ 30.804932][ T1] ret_from_fork+0x24/0x30 [ 30.804975][ T1] mmgrab (____ptrval____) to 4 [ 30.809831][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.814932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.814932][ T1] Call Trace: [ 30.814932][ T1] dump_stack+0x172/0x1f0 [ 30.814932][ T1] __schedule+0xd03/0x1580 [ 30.814932][ T1] ? __sched_text_start+0x8/0x8 [ 30.814932][ T1] schedule+0xa8/0x260 [ 30.814932][ T1] schedule_timeout+0x717/0xc50 [ 30.814932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.814932][ T1] ? find_held_lock+0x35/0x130 [ 30.814932][ T1] ? usleep_range+0x170/0x170 [ 30.814932][ T1] ? kasan_check_write+0x14/0x20 [ 30.814932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.814932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.814932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.814932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.814932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.814932][ T1] ? kasan_check_read+0x11/0x20 [ 30.814932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.814932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.814932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.814932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.814932][ T1] ? kasan_check_read+0x11/0x20 [ 30.814932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.814932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.814932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.814932][ T1] ? pointer+0x750/0x750 [ 30.814932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.814932][ T1] ? process_one_work+0x1790/0x1790 [ 30.814932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.814932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.814932][ T1] ? vsprintf+0x40/0x40 [ 30.814932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.814932][ T1] create_worker+0x25c/0x570 [ 30.814932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.814932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.814932][ T1] ? find_next_bit+0x107/0x130 [ 30.814932][ T1] workqueue_init+0x690/0x71e [ 30.814932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.814932][ T1] ? rest_init+0x37b/0x37b [ 30.814932][ T1] kernel_init+0x12/0x1c5 [ 30.814932][ T1] ret_from_fork+0x24/0x30 [ 30.814960][ T8] mmdrop (____ptrval____) before 4 [ 30.820220][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.824932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.824932][ T8] Call Trace: [ 30.824932][ T8] dump_stack+0x172/0x1f0 [ 30.824932][ T8] finish_task_switch+0x239/0x790 [ 30.824932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.824932][ T8] __schedule+0x7d3/0x1580 [ 30.824932][ T8] ? __sched_text_start+0x8/0x8 [ 30.824932][ T8] ? complete+0x61/0x80 [ 30.824932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.824932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.824932][ T8] preempt_schedule+0x4b/0x60 [ 30.824932][ T8] ___preempt_schedule+0x16/0x18 [ 30.824932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.824932][ T8] complete+0x61/0x80 [ 30.824932][ T8] kthread+0x275/0x420 [ 30.824932][ T8] ? process_one_work+0x1790/0x1790 [ 30.824932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.824932][ T8] ret_from_fork+0x24/0x30 [ 30.824977][ T8] mmgrab (____ptrval____) to 4 [ 30.830113][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.834932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.834932][ T8] Call Trace: [ 30.834932][ T8] dump_stack+0x172/0x1f0 [ 30.834932][ T8] __schedule+0xd03/0x1580 [ 30.834932][ T8] ? __sched_text_start+0x8/0x8 [ 30.834932][ T8] ? complete+0x61/0x80 [ 30.834932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.834932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.834932][ T8] preempt_schedule+0x4b/0x60 [ 30.834932][ T8] ___preempt_schedule+0x16/0x18 [ 30.834932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.834932][ T8] complete+0x61/0x80 [ 30.834932][ T8] kthread+0x275/0x420 [ 30.834932][ T8] ? process_one_work+0x1790/0x1790 [ 30.834932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.834932][ T8] ret_from_fork+0x24/0x30 [ 30.834961][ T1] mmdrop (____ptrval____) before 4 [ 30.840074][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.844932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.844932][ T1] Call Trace: [ 30.844932][ T1] dump_stack+0x172/0x1f0 [ 30.844932][ T1] finish_task_switch+0x239/0x790 [ 30.844932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.844932][ T1] __schedule+0x7d3/0x1580 [ 30.844932][ T1] ? __sched_text_start+0x8/0x8 [ 30.844932][ T1] schedule+0xa8/0x260 [ 30.844932][ T1] schedule_timeout+0x717/0xc50 [ 30.844932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.844932][ T1] ? find_held_lock+0x35/0x130 [ 30.844932][ T1] ? usleep_range+0x170/0x170 [ 30.844932][ T1] ? kasan_check_write+0x14/0x20 [ 30.844932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.844932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.844932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.844932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.844932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.844932][ T1] ? kasan_check_read+0x11/0x20 [ 30.844932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.844932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.844932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.844932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.844932][ T1] ? kasan_check_read+0x11/0x20 [ 30.844932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.844932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.844932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.844932][ T1] ? pointer+0x750/0x750 [ 30.844932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.844932][ T1] ? process_one_work+0x1790/0x1790 [ 30.844932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.844932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.844932][ T1] ? vsprintf+0x40/0x40 [ 30.844932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.844932][ T1] create_worker+0x25c/0x570 [ 30.844932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.844932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.844932][ T1] ? find_next_bit+0x107/0x130 [ 30.844932][ T1] workqueue_init+0x690/0x71e [ 30.844932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.844932][ T1] ? rest_init+0x37b/0x37b [ 30.844932][ T1] kernel_init+0x12/0x1c5 [ 30.844932][ T1] ret_from_fork+0x24/0x30 [ 30.844974][ T1] mmgrab (____ptrval____) to 4 [ 30.849749][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.854932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.854932][ T1] Call Trace: [ 30.854932][ T1] dump_stack+0x172/0x1f0 [ 30.854932][ T1] __schedule+0xd03/0x1580 [ 30.854932][ T1] ? __sched_text_start+0x8/0x8 [ 30.854932][ T1] schedule+0xa8/0x260 [ 30.854932][ T1] schedule_timeout+0x717/0xc50 [ 30.854932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.854932][ T1] ? find_held_lock+0x35/0x130 [ 30.854932][ T1] ? usleep_range+0x170/0x170 [ 30.854932][ T1] ? kasan_check_write+0x14/0x20 [ 30.854932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.854932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.854932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.854932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.854932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.854932][ T1] ? kasan_check_read+0x11/0x20 [ 30.854932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.854932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.854932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.854932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.854932][ T1] ? kasan_check_read+0x11/0x20 [ 30.854932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.854932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.854932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.854932][ T1] ? pointer+0x750/0x750 [ 30.854932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.854932][ T1] ? process_one_work+0x1790/0x1790 [ 30.854932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.854932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.854932][ T1] ? vsprintf+0x40/0x40 [ 30.854932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.854932][ T1] create_worker+0x25c/0x570 [ 30.854932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.854932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.854932][ T1] ? find_next_bit+0x107/0x130 [ 30.854932][ T1] workqueue_init+0x690/0x71e [ 30.854932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.854932][ T1] ? rest_init+0x37b/0x37b [ 30.854932][ T1] kernel_init+0x12/0x1c5 [ 30.854932][ T1] ret_from_fork+0x24/0x30 [ 30.854963][ T8] mmdrop (____ptrval____) before 4 [ 30.860162][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.864932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.864932][ T8] Call Trace: [ 30.864932][ T8] dump_stack+0x172/0x1f0 [ 30.864932][ T8] finish_task_switch+0x239/0x790 [ 30.864932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.864932][ T8] __schedule+0x7d3/0x1580 [ 30.864932][ T8] ? __sched_text_start+0x8/0x8 [ 30.864932][ T8] ? complete+0x61/0x80 [ 30.864932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.864932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.864932][ T8] preempt_schedule+0x4b/0x60 [ 30.864932][ T8] ___preempt_schedule+0x16/0x18 [ 30.864932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.864932][ T8] complete+0x61/0x80 [ 30.864932][ T8] kthread+0x275/0x420 [ 30.864932][ T8] ? process_one_work+0x1790/0x1790 [ 30.864932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.864932][ T8] ret_from_fork+0x24/0x30 [ 30.864974][ T8] mmgrab (____ptrval____) to 4 [ 30.869783][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.874932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.874932][ T8] Call Trace: [ 30.874932][ T8] dump_stack+0x172/0x1f0 [ 30.874932][ T8] __schedule+0xd03/0x1580 [ 30.874932][ T8] ? __sched_text_start+0x8/0x8 [ 30.874932][ T8] ? complete+0x61/0x80 [ 30.874932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.874932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.874932][ T8] preempt_schedule+0x4b/0x60 [ 30.874932][ T8] ___preempt_schedule+0x16/0x18 [ 30.874932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.874932][ T8] complete+0x61/0x80 [ 30.874932][ T8] kthread+0x275/0x420 [ 30.874932][ T8] ? process_one_work+0x1790/0x1790 [ 30.874932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.874932][ T8] ret_from_fork+0x24/0x30 [ 30.874962][ T1] mmdrop (____ptrval____) before 4 [ 30.884963][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.892170][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.894932][ T1] Call Trace: [ 30.894932][ T1] dump_stack+0x172/0x1f0 [ 30.894932][ T1] finish_task_switch+0x239/0x790 [ 30.894932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.894932][ T1] __schedule+0x7d3/0x1580 [ 30.894932][ T1] ? __sched_text_start+0x8/0x8 [ 30.894932][ T1] schedule+0xa8/0x260 [ 30.894932][ T1] schedule_timeout+0x717/0xc50 [ 30.894932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.894932][ T1] ? find_held_lock+0x35/0x130 [ 30.894932][ T1] ? usleep_range+0x170/0x170 [ 30.894932][ T1] ? kasan_check_write+0x14/0x20 [ 30.894932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.894932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.894932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.894932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.894932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.894932][ T1] ? kasan_check_read+0x11/0x20 [ 30.894932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.894932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.894932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.894932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.894932][ T1] ? kasan_check_read+0x11/0x20 [ 30.894932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.894932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.894932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.894932][ T1] ? pointer+0x750/0x750 [ 30.894932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.894932][ T1] ? process_one_work+0x1790/0x1790 [ 30.894932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.894932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.894932][ T1] ? vsprintf+0x40/0x40 [ 30.894932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.894932][ T1] create_worker+0x25c/0x570 [ 30.894932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.894932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.894932][ T1] ? find_next_bit+0x107/0x130 [ 30.894932][ T1] workqueue_init+0x690/0x71e [ 30.894932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.894932][ T1] ? rest_init+0x37b/0x37b [ 30.894932][ T1] kernel_init+0x12/0x1c5 [ 30.894932][ T1] ret_from_fork+0x24/0x30 [ 30.894974][ T1] mmgrab (____ptrval____) to 4 [ 30.899998][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.904932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.904932][ T1] Call Trace: [ 30.904932][ T1] dump_stack+0x172/0x1f0 [ 30.904932][ T1] __schedule+0xd03/0x1580 [ 30.904932][ T1] ? __sched_text_start+0x8/0x8 [ 30.904932][ T1] schedule+0xa8/0x260 [ 30.904932][ T1] schedule_timeout+0x717/0xc50 [ 30.904932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.904932][ T1] ? find_held_lock+0x35/0x130 [ 30.904932][ T1] ? usleep_range+0x170/0x170 [ 30.904932][ T1] ? kasan_check_write+0x14/0x20 [ 30.904932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.904932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.904932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.904932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.904932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.904932][ T1] ? kasan_check_read+0x11/0x20 [ 30.904932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.904932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.904932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.904932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.904932][ T1] ? kasan_check_read+0x11/0x20 [ 30.904932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.904932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.904932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.904932][ T1] ? pointer+0x750/0x750 [ 30.904932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.904932][ T1] ? process_one_work+0x1790/0x1790 [ 30.904932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.904932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.904932][ T1] ? vsprintf+0x40/0x40 [ 30.904932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.904932][ T1] create_worker+0x25c/0x570 [ 30.904932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.904932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.904932][ T1] ? find_next_bit+0x107/0x130 [ 30.904932][ T1] workqueue_init+0x690/0x71e [ 30.904932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.904932][ T1] ? rest_init+0x37b/0x37b [ 30.904932][ T1] kernel_init+0x12/0x1c5 [ 30.904932][ T1] ret_from_fork+0x24/0x30 [ 30.904962][ T8] mmdrop (____ptrval____) before 4 [ 30.914966][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.922883][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.924932][ T8] Call Trace: [ 30.924932][ T8] dump_stack+0x172/0x1f0 [ 30.924932][ T8] finish_task_switch+0x239/0x790 [ 30.924932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.924932][ T8] __schedule+0x7d3/0x1580 [ 30.924932][ T8] ? __sched_text_start+0x8/0x8 [ 30.924932][ T8] ? complete+0x61/0x80 [ 30.924932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.924932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.924932][ T8] preempt_schedule+0x4b/0x60 [ 30.924932][ T8] ___preempt_schedule+0x16/0x18 [ 30.924932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.924932][ T8] complete+0x61/0x80 [ 30.924932][ T8] kthread+0x275/0x420 [ 30.924932][ T8] ? process_one_work+0x1790/0x1790 [ 30.924932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.924932][ T8] ret_from_fork+0x24/0x30 [ 30.924984][ T8] mmgrab (____ptrval____) to 4 [ 30.929817][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.934932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.934932][ T8] Call Trace: [ 30.934932][ T8] dump_stack+0x172/0x1f0 [ 30.934932][ T8] __schedule+0xd03/0x1580 [ 30.934932][ T8] ? __sched_text_start+0x8/0x8 [ 30.934932][ T8] ? complete+0x61/0x80 [ 30.934932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.934932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.934932][ T8] preempt_schedule+0x4b/0x60 [ 30.934932][ T8] ___preempt_schedule+0x16/0x18 [ 30.934932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.934932][ T8] complete+0x61/0x80 [ 30.934932][ T8] kthread+0x275/0x420 [ 30.934932][ T8] ? process_one_work+0x1790/0x1790 [ 30.934932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.934932][ T8] ret_from_fork+0x24/0x30 [ 30.934971][ T1] mmdrop (____ptrval____) before 4 [ 30.940192][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.944932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.944932][ T1] Call Trace: [ 30.944932][ T1] dump_stack+0x172/0x1f0 [ 30.944932][ T1] finish_task_switch+0x239/0x790 [ 30.944932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.944932][ T1] __schedule+0x7d3/0x1580 [ 30.944932][ T1] ? __sched_text_start+0x8/0x8 [ 30.944932][ T1] schedule+0xa8/0x260 [ 30.944932][ T1] schedule_timeout+0x717/0xc50 [ 30.944932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.944932][ T1] ? find_held_lock+0x35/0x130 [ 30.944932][ T1] ? usleep_range+0x170/0x170 [ 30.944932][ T1] ? kasan_check_write+0x14/0x20 [ 30.944932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.944932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.944932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.944932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.944932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.944932][ T1] ? kasan_check_read+0x11/0x20 [ 30.944932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.944932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.944932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.944932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.944932][ T1] ? kasan_check_read+0x11/0x20 [ 30.944932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.944932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.944932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.944932][ T1] ? pointer+0x750/0x750 [ 30.944932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.944932][ T1] ? process_one_work+0x1790/0x1790 [ 30.944932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.944932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.944932][ T1] ? vsprintf+0x40/0x40 [ 30.944932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.944932][ T1] create_worker+0x25c/0x570 [ 30.944932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.944932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.944932][ T1] ? find_next_bit+0x107/0x130 [ 30.944932][ T1] workqueue_init+0x690/0x71e [ 30.944932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.944932][ T1] ? rest_init+0x37b/0x37b [ 30.944932][ T1] kernel_init+0x12/0x1c5 [ 30.944932][ T1] ret_from_fork+0x24/0x30 [ 30.944973][ T1] mmgrab (____ptrval____) to 4 [ 30.949832][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.954932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.954932][ T1] Call Trace: [ 30.954932][ T1] dump_stack+0x172/0x1f0 [ 30.954932][ T1] __schedule+0xd03/0x1580 [ 30.954932][ T1] ? __sched_text_start+0x8/0x8 [ 30.954932][ T1] schedule+0xa8/0x260 [ 30.954932][ T1] schedule_timeout+0x717/0xc50 [ 30.954932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.954932][ T1] ? find_held_lock+0x35/0x130 [ 30.954932][ T1] ? usleep_range+0x170/0x170 [ 30.954932][ T1] ? kasan_check_write+0x14/0x20 [ 30.954932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.954932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.954932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.954932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.954932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.954932][ T1] ? kasan_check_read+0x11/0x20 [ 30.954932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.954932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.954932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.954932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.954932][ T1] ? kasan_check_read+0x11/0x20 [ 30.954932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.954932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.954932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.954932][ T1] ? pointer+0x750/0x750 [ 30.954932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.954932][ T1] ? process_one_work+0x1790/0x1790 [ 30.954932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.954932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.954932][ T1] ? vsprintf+0x40/0x40 [ 30.954932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.954932][ T1] create_worker+0x25c/0x570 [ 30.954932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.954932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.954932][ T1] ? find_next_bit+0x107/0x130 [ 30.954932][ T1] workqueue_init+0x690/0x71e [ 30.954932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.954932][ T1] ? rest_init+0x37b/0x37b [ 30.954932][ T1] kernel_init+0x12/0x1c5 [ 30.954932][ T1] ret_from_fork+0x24/0x30 [ 30.954961][ T8] mmdrop (____ptrval____) before 4 [ 30.960126][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.964932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.964932][ T8] Call Trace: [ 30.964932][ T8] dump_stack+0x172/0x1f0 [ 30.964932][ T8] finish_task_switch+0x239/0x790 [ 30.964932][ T8] ? dump_stack+0x1de/0x1f0 [ 30.964932][ T8] __schedule+0x7d3/0x1580 [ 30.964932][ T8] ? __sched_text_start+0x8/0x8 [ 30.964932][ T8] ? complete+0x61/0x80 [ 30.964932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.964932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.964932][ T8] preempt_schedule+0x4b/0x60 [ 30.964932][ T8] ___preempt_schedule+0x16/0x18 [ 30.964932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.964932][ T8] complete+0x61/0x80 [ 30.964932][ T8] kthread+0x275/0x420 [ 30.964932][ T8] ? process_one_work+0x1790/0x1790 [ 30.964932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.964932][ T8] ret_from_fork+0x24/0x30 [ 30.964977][ T8] mmgrab (____ptrval____) to 4 [ 30.969779][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 30.974932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.974932][ T8] Call Trace: [ 30.974932][ T8] dump_stack+0x172/0x1f0 [ 30.974932][ T8] __schedule+0xd03/0x1580 [ 30.974932][ T8] ? __sched_text_start+0x8/0x8 [ 30.974932][ T8] ? complete+0x61/0x80 [ 30.974932][ T8] ? preempt_schedule+0x4b/0x60 [ 30.974932][ T8] preempt_schedule_common+0x4f/0xe0 [ 30.974932][ T8] preempt_schedule+0x4b/0x60 [ 30.974932][ T8] ___preempt_schedule+0x16/0x18 [ 30.974932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 30.974932][ T8] complete+0x61/0x80 [ 30.974932][ T8] kthread+0x275/0x420 [ 30.974932][ T8] ? process_one_work+0x1790/0x1790 [ 30.974932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 30.974932][ T8] ret_from_fork+0x24/0x30 [ 30.974961][ T1] mmdrop (____ptrval____) before 4 [ 30.980075][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.984932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.984932][ T1] Call Trace: [ 30.984932][ T1] dump_stack+0x172/0x1f0 [ 30.984932][ T1] finish_task_switch+0x239/0x790 [ 30.984932][ T1] ? dump_stack+0x1de/0x1f0 [ 30.984932][ T1] __schedule+0x7d3/0x1580 [ 30.984932][ T1] ? __sched_text_start+0x8/0x8 [ 30.984932][ T1] schedule+0xa8/0x260 [ 30.984932][ T1] schedule_timeout+0x717/0xc50 [ 30.984932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.984932][ T1] ? find_held_lock+0x35/0x130 [ 30.984932][ T1] ? usleep_range+0x170/0x170 [ 30.984932][ T1] ? kasan_check_write+0x14/0x20 [ 30.984932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.984932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.984932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.984932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.984932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.984932][ T1] ? kasan_check_read+0x11/0x20 [ 30.984932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.984932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.984932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.984932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.984932][ T1] ? kasan_check_read+0x11/0x20 [ 30.984932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.984932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.984932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.984932][ T1] ? pointer+0x750/0x750 [ 30.984932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.984932][ T1] ? process_one_work+0x1790/0x1790 [ 30.984932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.984932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.984932][ T1] ? vsprintf+0x40/0x40 [ 30.984932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.984932][ T1] create_worker+0x25c/0x570 [ 30.984932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.984932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.984932][ T1] ? find_next_bit+0x107/0x130 [ 30.984932][ T1] workqueue_init+0x690/0x71e [ 30.984932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.984932][ T1] ? rest_init+0x37b/0x37b [ 30.984932][ T1] kernel_init+0x12/0x1c5 [ 30.984932][ T1] ret_from_fork+0x24/0x30 [ 30.984976][ T1] mmgrab (____ptrval____) to 4 [ 30.989871][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 30.994932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.994932][ T1] Call Trace: [ 30.994932][ T1] dump_stack+0x172/0x1f0 [ 30.994932][ T1] __schedule+0xd03/0x1580 [ 30.994932][ T1] ? __sched_text_start+0x8/0x8 [ 30.994932][ T1] schedule+0xa8/0x260 [ 30.994932][ T1] schedule_timeout+0x717/0xc50 [ 30.994932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.994932][ T1] ? find_held_lock+0x35/0x130 [ 30.994932][ T1] ? usleep_range+0x170/0x170 [ 30.994932][ T1] ? kasan_check_write+0x14/0x20 [ 30.994932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.994932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 30.994932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 30.994932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 30.994932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 30.994932][ T1] ? kasan_check_read+0x11/0x20 [ 30.994932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 30.994932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 30.994932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 30.994932][ T1] ? wake_up_q+0xf0/0xf0 [ 30.994932][ T1] ? kasan_check_read+0x11/0x20 [ 30.994932][ T1] __kthread_create_on_node+0x289/0x460 [ 30.994932][ T1] ? kthread_parkme+0xb0/0xb0 [ 30.994932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.994932][ T1] ? pointer+0x750/0x750 [ 30.994932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.994932][ T1] ? process_one_work+0x1790/0x1790 [ 30.994932][ T1] kthread_create_on_node+0xbb/0xf0 [ 30.994932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 30.994932][ T1] ? vsprintf+0x40/0x40 [ 30.994932][ T1] ? ___preempt_schedule+0x16/0x18 [ 30.994932][ T1] create_worker+0x25c/0x570 [ 30.994932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 30.994932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.994932][ T1] ? find_next_bit+0x107/0x130 [ 30.994932][ T1] workqueue_init+0x690/0x71e [ 30.994932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 30.994932][ T1] ? rest_init+0x37b/0x37b [ 30.994932][ T1] kernel_init+0x12/0x1c5 [ 30.994932][ T1] ret_from_fork+0x24/0x30 [ 30.994965][ T8] mmdrop (____ptrval____) before 4 [ 31.004975][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.012252][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.014932][ T8] Call Trace: [ 31.014932][ T8] dump_stack+0x172/0x1f0 [ 31.014932][ T8] finish_task_switch+0x239/0x790 [ 31.014932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.014932][ T8] __schedule+0x7d3/0x1580 [ 31.014932][ T8] ? __sched_text_start+0x8/0x8 [ 31.014932][ T8] ? complete+0x61/0x80 [ 31.014932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.014932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.014932][ T8] preempt_schedule+0x4b/0x60 [ 31.014932][ T8] ___preempt_schedule+0x16/0x18 [ 31.014932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.014932][ T8] complete+0x61/0x80 [ 31.014932][ T8] kthread+0x275/0x420 [ 31.014932][ T8] ? process_one_work+0x1790/0x1790 [ 31.014932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.014932][ T8] ret_from_fork+0x24/0x30 [ 31.014982][ T8] mmgrab (____ptrval____) to 4 [ 31.019760][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.024932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.024932][ T8] Call Trace: [ 31.024932][ T8] dump_stack+0x172/0x1f0 [ 31.024932][ T8] __schedule+0xd03/0x1580 [ 31.024932][ T8] ? __sched_text_start+0x8/0x8 [ 31.024932][ T8] ? complete+0x61/0x80 [ 31.024932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.024932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.024932][ T8] preempt_schedule+0x4b/0x60 [ 31.024932][ T8] ___preempt_schedule+0x16/0x18 [ 31.024932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.024932][ T8] complete+0x61/0x80 [ 31.024932][ T8] kthread+0x275/0x420 [ 31.024932][ T8] ? process_one_work+0x1790/0x1790 [ 31.024932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.024932][ T8] ret_from_fork+0x24/0x30 [ 31.024961][ T1] mmdrop (____ptrval____) before 4 [ 31.030075][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.034932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.034932][ T1] Call Trace: [ 31.034932][ T1] dump_stack+0x172/0x1f0 [ 31.034932][ T1] finish_task_switch+0x239/0x790 [ 31.034932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.034932][ T1] __schedule+0x7d3/0x1580 [ 31.034932][ T1] ? __sched_text_start+0x8/0x8 [ 31.034932][ T1] schedule+0xa8/0x260 [ 31.034932][ T1] schedule_timeout+0x717/0xc50 [ 31.034932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.034932][ T1] ? find_held_lock+0x35/0x130 [ 31.034932][ T1] ? usleep_range+0x170/0x170 [ 31.034932][ T1] ? kasan_check_write+0x14/0x20 [ 31.034932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.034932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.034932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.034932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.034932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.034932][ T1] ? kasan_check_read+0x11/0x20 [ 31.034932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.034932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.034932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.034932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.034932][ T1] ? kasan_check_read+0x11/0x20 [ 31.034932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.034932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.034932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.034932][ T1] ? pointer+0x750/0x750 [ 31.034932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.034932][ T1] ? process_one_work+0x1790/0x1790 [ 31.034932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.034932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.034932][ T1] ? vsprintf+0x40/0x40 [ 31.034932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.034932][ T1] create_worker+0x25c/0x570 [ 31.034932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.034932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.034932][ T1] ? find_next_bit+0x107/0x130 [ 31.034932][ T1] workqueue_init+0x690/0x71e [ 31.034932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.034932][ T1] ? rest_init+0x37b/0x37b [ 31.034932][ T1] kernel_init+0x12/0x1c5 [ 31.034932][ T1] ret_from_fork+0x24/0x30 [ 31.034974][ T1] mmgrab (____ptrval____) to 4 [ 31.039834][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.044932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.044932][ T1] Call Trace: [ 31.044932][ T1] dump_stack+0x172/0x1f0 [ 31.044932][ T1] __schedule+0xd03/0x1580 [ 31.044932][ T1] ? __sched_text_start+0x8/0x8 [ 31.044932][ T1] schedule+0xa8/0x260 [ 31.044932][ T1] schedule_timeout+0x717/0xc50 [ 31.044932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.044932][ T1] ? find_held_lock+0x35/0x130 [ 31.044932][ T1] ? usleep_range+0x170/0x170 [ 31.044932][ T1] ? kasan_check_write+0x14/0x20 [ 31.044932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.044932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.044932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.044932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.044932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.044932][ T1] ? kasan_check_read+0x11/0x20 [ 31.044932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.044932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.044932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.044932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.044932][ T1] ? kasan_check_read+0x11/0x20 [ 31.044932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.044932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.044932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.044932][ T1] ? pointer+0x750/0x750 [ 31.044932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.044932][ T1] ? process_one_work+0x1790/0x1790 [ 31.044932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.044932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.044932][ T1] ? vsprintf+0x40/0x40 [ 31.044932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.044932][ T1] create_worker+0x25c/0x570 [ 31.044932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.044932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.044932][ T1] ? find_next_bit+0x107/0x130 [ 31.044932][ T1] workqueue_init+0x690/0x71e [ 31.044932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.044932][ T1] ? rest_init+0x37b/0x37b [ 31.044932][ T1] kernel_init+0x12/0x1c5 [ 31.044932][ T1] ret_from_fork+0x24/0x30 [ 31.044966][ T8] mmdrop (____ptrval____) before 4 [ 31.050086][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.054932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.054932][ T8] Call Trace: [ 31.054932][ T8] dump_stack+0x172/0x1f0 [ 31.054932][ T8] finish_task_switch+0x239/0x790 [ 31.054932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.054932][ T8] __schedule+0x7d3/0x1580 [ 31.054932][ T8] ? __sched_text_start+0x8/0x8 [ 31.054932][ T8] ? complete+0x61/0x80 [ 31.054932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.054932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.054932][ T8] preempt_schedule+0x4b/0x60 [ 31.054932][ T8] ___preempt_schedule+0x16/0x18 [ 31.054932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.054932][ T8] complete+0x61/0x80 [ 31.054932][ T8] kthread+0x275/0x420 [ 31.054932][ T8] ? process_one_work+0x1790/0x1790 [ 31.054932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.054932][ T8] ret_from_fork+0x24/0x30 [ 31.054977][ T8] mmgrab (____ptrval____) to 4 [ 31.059921][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.064932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.064932][ T8] Call Trace: [ 31.064932][ T8] dump_stack+0x172/0x1f0 [ 31.064932][ T8] __schedule+0xd03/0x1580 [ 31.064932][ T8] ? __sched_text_start+0x8/0x8 [ 31.064932][ T8] ? complete+0x61/0x80 [ 31.064932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.064932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.064932][ T8] preempt_schedule+0x4b/0x60 [ 31.064932][ T8] ___preempt_schedule+0x16/0x18 [ 31.064932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.064932][ T8] complete+0x61/0x80 [ 31.064932][ T8] kthread+0x275/0x420 [ 31.064932][ T8] ? process_one_work+0x1790/0x1790 [ 31.064932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.064932][ T8] ret_from_fork+0x24/0x30 [ 31.064963][ T1] mmdrop (____ptrval____) before 4 [ 31.074967][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.083912][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.084932][ T1] Call Trace: [ 31.084932][ T1] dump_stack+0x172/0x1f0 [ 31.084932][ T1] finish_task_switch+0x239/0x790 [ 31.084932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.084932][ T1] __schedule+0x7d3/0x1580 [ 31.084932][ T1] ? __sched_text_start+0x8/0x8 [ 31.084932][ T1] schedule+0xa8/0x260 [ 31.084932][ T1] schedule_timeout+0x717/0xc50 [ 31.084932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.084932][ T1] ? find_held_lock+0x35/0x130 [ 31.084932][ T1] ? usleep_range+0x170/0x170 [ 31.084932][ T1] ? kasan_check_write+0x14/0x20 [ 31.084932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.084932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.084932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.084932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.084932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.084932][ T1] ? kasan_check_read+0x11/0x20 [ 31.084932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.084932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.084932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.084932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.084932][ T1] ? kasan_check_read+0x11/0x20 [ 31.084932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.084932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.084932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.084932][ T1] ? pointer+0x750/0x750 [ 31.084932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.084932][ T1] ? process_one_work+0x1790/0x1790 [ 31.084932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.084932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.084932][ T1] ? vsprintf+0x40/0x40 [ 31.084932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.084932][ T1] create_worker+0x25c/0x570 [ 31.084932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.084932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.084932][ T1] ? find_next_bit+0x107/0x130 [ 31.084932][ T1] workqueue_init+0x690/0x71e [ 31.084932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.084932][ T1] ? rest_init+0x37b/0x37b [ 31.084932][ T1] kernel_init+0x12/0x1c5 [ 31.084932][ T1] ret_from_fork+0x24/0x30 [ 31.084974][ T1] mmgrab (____ptrval____) to 4 [ 31.089822][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.094932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.094932][ T1] Call Trace: [ 31.094932][ T1] dump_stack+0x172/0x1f0 [ 31.094932][ T1] __schedule+0xd03/0x1580 [ 31.094932][ T1] ? __sched_text_start+0x8/0x8 [ 31.094932][ T1] schedule+0xa8/0x260 [ 31.094932][ T1] schedule_timeout+0x717/0xc50 [ 31.094932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.094932][ T1] ? find_held_lock+0x35/0x130 [ 31.094932][ T1] ? usleep_range+0x170/0x170 [ 31.094932][ T1] ? kasan_check_write+0x14/0x20 [ 31.094932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.094932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.094932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.094932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.094932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.094932][ T1] ? kasan_check_read+0x11/0x20 [ 31.094932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.094932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.094932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.094932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.094932][ T1] ? kasan_check_read+0x11/0x20 [ 31.094932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.094932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.094932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.094932][ T1] ? pointer+0x750/0x750 [ 31.094932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.094932][ T1] ? process_one_work+0x1790/0x1790 [ 31.094932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.094932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.094932][ T1] ? vsprintf+0x40/0x40 [ 31.094932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.094932][ T1] create_worker+0x25c/0x570 [ 31.094932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.094932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.094932][ T1] ? find_next_bit+0x107/0x130 [ 31.094932][ T1] workqueue_init+0x690/0x71e [ 31.094932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.094932][ T1] ? rest_init+0x37b/0x37b [ 31.094932][ T1] kernel_init+0x12/0x1c5 [ 31.094932][ T1] ret_from_fork+0x24/0x30 [ 31.094964][ T8] mmdrop (____ptrval____) before 4 [ 31.104972][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.112151][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.114932][ T8] Call Trace: [ 31.114932][ T8] dump_stack+0x172/0x1f0 [ 31.114932][ T8] finish_task_switch+0x239/0x790 [ 31.114932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.114932][ T8] __schedule+0x7d3/0x1580 [ 31.114932][ T8] ? __sched_text_start+0x8/0x8 [ 31.114932][ T8] ? complete+0x61/0x80 [ 31.114932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.114932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.114932][ T8] preempt_schedule+0x4b/0x60 [ 31.114932][ T8] ___preempt_schedule+0x16/0x18 [ 31.114932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.114932][ T8] complete+0x61/0x80 [ 31.114932][ T8] kthread+0x275/0x420 [ 31.114932][ T8] ? process_one_work+0x1790/0x1790 [ 31.114932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.114932][ T8] ret_from_fork+0x24/0x30 [ 31.114975][ T8] mmgrab (____ptrval____) to 4 [ 31.120318][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.124932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.124932][ T8] Call Trace: [ 31.124932][ T8] dump_stack+0x172/0x1f0 [ 31.124932][ T8] __schedule+0xd03/0x1580 [ 31.124932][ T8] ? __sched_text_start+0x8/0x8 [ 31.124932][ T8] ? complete+0x61/0x80 [ 31.124932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.124932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.124932][ T8] preempt_schedule+0x4b/0x60 [ 31.124932][ T8] ___preempt_schedule+0x16/0x18 [ 31.124932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.124932][ T8] complete+0x61/0x80 [ 31.124932][ T8] kthread+0x275/0x420 [ 31.124932][ T8] ? process_one_work+0x1790/0x1790 [ 31.124932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.124932][ T8] ret_from_fork+0x24/0x30 [ 31.124965][ T1] mmdrop (____ptrval____) before 4 [ 31.130208][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.134932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.134932][ T1] Call Trace: [ 31.134932][ T1] dump_stack+0x172/0x1f0 [ 31.134932][ T1] finish_task_switch+0x239/0x790 [ 31.134932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.134932][ T1] __schedule+0x7d3/0x1580 [ 31.134932][ T1] ? __sched_text_start+0x8/0x8 [ 31.134932][ T1] schedule+0xa8/0x260 [ 31.134932][ T1] schedule_timeout+0x717/0xc50 [ 31.134932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.134932][ T1] ? find_held_lock+0x35/0x130 [ 31.134932][ T1] ? usleep_range+0x170/0x170 [ 31.134932][ T1] ? kasan_check_write+0x14/0x20 [ 31.134932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.134932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.134932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.134932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.134932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.134932][ T1] ? kasan_check_read+0x11/0x20 [ 31.134932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.134932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.134932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.134932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.134932][ T1] ? kasan_check_read+0x11/0x20 [ 31.134932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.134932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.134932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.134932][ T1] ? pointer+0x750/0x750 [ 31.134932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.134932][ T1] ? process_one_work+0x1790/0x1790 [ 31.134932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.134932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.134932][ T1] ? vsprintf+0x40/0x40 [ 31.134932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.134932][ T1] create_worker+0x25c/0x570 [ 31.134932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.134932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.134932][ T1] ? find_next_bit+0x107/0x130 [ 31.134932][ T1] workqueue_init+0x690/0x71e [ 31.134932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.134932][ T1] ? rest_init+0x37b/0x37b [ 31.134932][ T1] kernel_init+0x12/0x1c5 [ 31.134932][ T1] ret_from_fork+0x24/0x30 [ 31.134976][ T1] mmgrab (____ptrval____) to 4 [ 31.140353][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.144932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.144932][ T1] Call Trace: [ 31.144932][ T1] dump_stack+0x172/0x1f0 [ 31.144932][ T1] __schedule+0xd03/0x1580 [ 31.144932][ T1] ? __sched_text_start+0x8/0x8 [ 31.144932][ T1] schedule+0xa8/0x260 [ 31.144932][ T1] schedule_timeout+0x717/0xc50 [ 31.144932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.144932][ T1] ? find_held_lock+0x35/0x130 [ 31.144932][ T1] ? usleep_range+0x170/0x170 [ 31.144932][ T1] ? kasan_check_write+0x14/0x20 [ 31.144932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.144932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.144932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.144932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.144932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.144932][ T1] ? kasan_check_read+0x11/0x20 [ 31.144932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.144932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.144932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.144932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.144932][ T1] ? kasan_check_read+0x11/0x20 [ 31.144932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.144932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.144932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.144932][ T1] ? pointer+0x750/0x750 [ 31.144932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.144932][ T1] ? process_one_work+0x1790/0x1790 [ 31.144932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.144932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.144932][ T1] ? vsprintf+0x40/0x40 [ 31.144932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.144932][ T1] create_worker+0x25c/0x570 [ 31.144932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.144932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.144932][ T1] ? find_next_bit+0x107/0x130 [ 31.144932][ T1] workqueue_init+0x690/0x71e [ 31.144932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.144932][ T1] ? rest_init+0x37b/0x37b [ 31.144932][ T1] kernel_init+0x12/0x1c5 [ 31.144932][ T1] ret_from_fork+0x24/0x30 [ 31.144987][ T8] mmdrop (____ptrval____) before 4 [ 31.154969][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.161992][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.164932][ T8] Call Trace: [ 31.164932][ T8] dump_stack+0x172/0x1f0 [ 31.164932][ T8] finish_task_switch+0x239/0x790 [ 31.164932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.164932][ T8] __schedule+0x7d3/0x1580 [ 31.164932][ T8] ? __sched_text_start+0x8/0x8 [ 31.164932][ T8] ? complete+0x61/0x80 [ 31.164932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.164932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.164932][ T8] preempt_schedule+0x4b/0x60 [ 31.164932][ T8] ___preempt_schedule+0x16/0x18 [ 31.164932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.164932][ T8] complete+0x61/0x80 [ 31.164932][ T8] kthread+0x275/0x420 [ 31.164932][ T8] ? process_one_work+0x1790/0x1790 [ 31.164932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.164932][ T8] ret_from_fork+0x24/0x30 [ 31.164976][ T8] mmgrab (____ptrval____) to 4 [ 31.170163][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.174932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.174932][ T8] Call Trace: [ 31.174932][ T8] dump_stack+0x172/0x1f0 [ 31.174932][ T8] __schedule+0xd03/0x1580 [ 31.174932][ T8] ? __sched_text_start+0x8/0x8 [ 31.174932][ T8] ? complete+0x61/0x80 [ 31.174932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.174932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.174932][ T8] preempt_schedule+0x4b/0x60 [ 31.174932][ T8] ___preempt_schedule+0x16/0x18 [ 31.174932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.174932][ T8] complete+0x61/0x80 [ 31.174932][ T8] kthread+0x275/0x420 [ 31.174932][ T8] ? process_one_work+0x1790/0x1790 [ 31.174932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.174932][ T8] ret_from_fork+0x24/0x30 [ 31.174964][ T7] mmdrop (____ptrval____) before 4 [ 31.180250][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.184932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.184932][ T7] Workqueue: 0x0 (events) [ 31.184932][ T7] Call Trace: [ 31.184932][ T7] dump_stack+0x172/0x1f0 [ 31.184932][ T7] finish_task_switch+0x239/0x790 [ 31.184932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.184932][ T7] __schedule+0x7d3/0x1580 [ 31.184932][ T7] ? __sched_text_start+0x8/0x8 [ 31.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.184932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.184932][ T7] ? kthread_data+0x58/0xc0 [ 31.184932][ T7] schedule+0xa8/0x260 [ 31.184932][ T7] worker_thread+0x248/0xe40 [ 31.184932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.184932][ T7] kthread+0x354/0x420 [ 31.184932][ T7] ? process_one_work+0x1790/0x1790 [ 31.184932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.184932][ T7] ret_from_fork+0x24/0x30 [ 31.184976][ T7] mmgrab (____ptrval____) to 4 [ 31.189760][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.194932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.194932][ T7] Workqueue: 0x0 (events) [ 31.194932][ T7] Call Trace: [ 31.194932][ T7] dump_stack+0x172/0x1f0 [ 31.194932][ T7] __schedule+0xd03/0x1580 [ 31.194932][ T7] ? __sched_text_start+0x8/0x8 [ 31.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.194932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.194932][ T7] ? kthread_data+0x58/0xc0 [ 31.194932][ T7] schedule+0xa8/0x260 [ 31.194932][ T7] worker_thread+0x248/0xe40 [ 31.194932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.194932][ T7] kthread+0x354/0x420 [ 31.194932][ T7] ? process_one_work+0x1790/0x1790 [ 31.194932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.194932][ T7] ret_from_fork+0x24/0x30 [ 31.194965][ T1] mmdrop (____ptrval____) before 4 [ 31.204973][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.212743][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.214932][ T1] Call Trace: [ 31.214932][ T1] dump_stack+0x172/0x1f0 [ 31.214932][ T1] finish_task_switch+0x239/0x790 [ 31.214932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.214932][ T1] __schedule+0x7d3/0x1580 [ 31.214932][ T1] ? __sched_text_start+0x8/0x8 [ 31.214932][ T1] schedule+0xa8/0x260 [ 31.214932][ T1] schedule_timeout+0x717/0xc50 [ 31.214932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.214932][ T1] ? find_held_lock+0x35/0x130 [ 31.214932][ T1] ? usleep_range+0x170/0x170 [ 31.214932][ T1] ? kasan_check_write+0x14/0x20 [ 31.214932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.214932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.214932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.214932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.214932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.214932][ T1] ? kasan_check_read+0x11/0x20 [ 31.214932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.214932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.214932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.214932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.214932][ T1] ? kasan_check_read+0x11/0x20 [ 31.214932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.214932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.214932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.214932][ T1] ? pointer+0x750/0x750 [ 31.214932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.214932][ T1] ? process_one_work+0x1790/0x1790 [ 31.214932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.214932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.214932][ T1] ? vsprintf+0x40/0x40 [ 31.214932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.214932][ T1] create_worker+0x25c/0x570 [ 31.214932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.214932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.214932][ T1] ? find_next_bit+0x107/0x130 [ 31.214932][ T1] workqueue_init+0x690/0x71e [ 31.214932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.214932][ T1] ? rest_init+0x37b/0x37b [ 31.214932][ T1] kernel_init+0x12/0x1c5 [ 31.214932][ T1] ret_from_fork+0x24/0x30 [ 31.214984][ T1] mmgrab (____ptrval____) to 4 [ 31.220195][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.224932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.224932][ T1] Call Trace: [ 31.224932][ T1] dump_stack+0x172/0x1f0 [ 31.224932][ T1] __schedule+0xd03/0x1580 [ 31.224932][ T1] ? __sched_text_start+0x8/0x8 [ 31.224932][ T1] schedule+0xa8/0x260 [ 31.224932][ T1] schedule_timeout+0x717/0xc50 [ 31.224932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.224932][ T1] ? find_held_lock+0x35/0x130 [ 31.224932][ T1] ? usleep_range+0x170/0x170 [ 31.224932][ T1] ? kasan_check_write+0x14/0x20 [ 31.224932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.224932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.224932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.224932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.224932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.224932][ T1] ? kasan_check_read+0x11/0x20 [ 31.224932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.224932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.224932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.224932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.224932][ T1] ? kasan_check_read+0x11/0x20 [ 31.224932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.224932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.224932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.224932][ T1] ? pointer+0x750/0x750 [ 31.224932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.224932][ T1] ? process_one_work+0x1790/0x1790 [ 31.224932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.224932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.224932][ T1] ? vsprintf+0x40/0x40 [ 31.224932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.224932][ T1] create_worker+0x25c/0x570 [ 31.224932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.224932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.224932][ T1] ? find_next_bit+0x107/0x130 [ 31.224932][ T1] workqueue_init+0x690/0x71e [ 31.224932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.224932][ T1] ? rest_init+0x37b/0x37b [ 31.224932][ T1] kernel_init+0x12/0x1c5 [ 31.224932][ T1] ret_from_fork+0x24/0x30 [ 31.224964][ T8] mmdrop (____ptrval____) before 4 [ 31.234977][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.242386][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.244932][ T8] Call Trace: [ 31.244932][ T8] dump_stack+0x172/0x1f0 [ 31.244932][ T8] finish_task_switch+0x239/0x790 [ 31.244932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.244932][ T8] __schedule+0x7d3/0x1580 [ 31.244932][ T8] ? __sched_text_start+0x8/0x8 [ 31.244932][ T8] ? complete+0x61/0x80 [ 31.244932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.244932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.244932][ T8] preempt_schedule+0x4b/0x60 [ 31.244932][ T8] ___preempt_schedule+0x16/0x18 [ 31.244932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.244932][ T8] complete+0x61/0x80 [ 31.244932][ T8] kthread+0x275/0x420 [ 31.244932][ T8] ? process_one_work+0x1790/0x1790 [ 31.244932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.244932][ T8] ret_from_fork+0x24/0x30 [ 31.244988][ T8] mmgrab (____ptrval____) to 4 [ 31.249765][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.254932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.254932][ T8] Call Trace: [ 31.254932][ T8] dump_stack+0x172/0x1f0 [ 31.254932][ T8] __schedule+0xd03/0x1580 [ 31.254932][ T8] ? __sched_text_start+0x8/0x8 [ 31.254932][ T8] ? complete+0x61/0x80 [ 31.254932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.254932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.254932][ T8] preempt_schedule+0x4b/0x60 [ 31.254932][ T8] ___preempt_schedule+0x16/0x18 [ 31.254932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.254932][ T8] complete+0x61/0x80 [ 31.254932][ T8] kthread+0x275/0x420 [ 31.254932][ T8] ? process_one_work+0x1790/0x1790 [ 31.254932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.254932][ T8] ret_from_fork+0x24/0x30 [ 31.254962][ T7] mmdrop (____ptrval____) before 4 [ 31.260245][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.264932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.264932][ T7] Workqueue: 0x0 (events) [ 31.264932][ T7] Call Trace: [ 31.264932][ T7] dump_stack+0x172/0x1f0 [ 31.264932][ T7] finish_task_switch+0x239/0x790 [ 31.264932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.264932][ T7] __schedule+0x7d3/0x1580 [ 31.264932][ T7] ? __sched_text_start+0x8/0x8 [ 31.264932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.264932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.264932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.264932][ T7] ? kthread_data+0x58/0xc0 [ 31.264932][ T7] schedule+0xa8/0x260 [ 31.264932][ T7] worker_thread+0x248/0xe40 [ 31.264932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.264932][ T7] kthread+0x354/0x420 [ 31.264932][ T7] ? process_one_work+0x1790/0x1790 [ 31.264932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.264932][ T7] ret_from_fork+0x24/0x30 [ 31.264975][ T7] mmgrab (____ptrval____) to 4 [ 31.269834][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.274932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.274932][ T7] Workqueue: 0x0 (events) [ 31.274932][ T7] Call Trace: [ 31.274932][ T7] dump_stack+0x172/0x1f0 [ 31.274932][ T7] __schedule+0xd03/0x1580 [ 31.274932][ T7] ? __sched_text_start+0x8/0x8 [ 31.274932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.274932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.274932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.274932][ T7] ? kthread_data+0x58/0xc0 [ 31.274932][ T7] schedule+0xa8/0x260 [ 31.274932][ T7] worker_thread+0x248/0xe40 [ 31.274932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.274932][ T7] kthread+0x354/0x420 [ 31.274932][ T7] ? process_one_work+0x1790/0x1790 [ 31.274932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.274932][ T7] ret_from_fork+0x24/0x30 [ 31.274964][ T1] mmdrop (____ptrval____) before 4 [ 31.284977][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.293234][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.294932][ T1] Call Trace: [ 31.294932][ T1] dump_stack+0x172/0x1f0 [ 31.294932][ T1] finish_task_switch+0x239/0x790 [ 31.294932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.294932][ T1] __schedule+0x7d3/0x1580 [ 31.294932][ T1] ? __sched_text_start+0x8/0x8 [ 31.294932][ T1] schedule+0xa8/0x260 [ 31.294932][ T1] schedule_timeout+0x717/0xc50 [ 31.294932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.294932][ T1] ? find_held_lock+0x35/0x130 [ 31.294932][ T1] ? usleep_range+0x170/0x170 [ 31.294932][ T1] ? kasan_check_write+0x14/0x20 [ 31.294932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.294932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.294932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.294932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.294932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.294932][ T1] ? kasan_check_read+0x11/0x20 [ 31.294932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.294932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.294932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.294932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.294932][ T1] ? kasan_check_read+0x11/0x20 [ 31.294932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.294932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.294932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.294932][ T1] ? pointer+0x750/0x750 [ 31.294932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.294932][ T1] ? process_one_work+0x1790/0x1790 [ 31.294932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.294932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.294932][ T1] ? vsprintf+0x40/0x40 [ 31.294932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.294932][ T1] create_worker+0x25c/0x570 [ 31.294932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.294932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.294932][ T1] ? find_next_bit+0x107/0x130 [ 31.294932][ T1] workqueue_init+0x690/0x71e [ 31.294932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.294932][ T1] ? rest_init+0x37b/0x37b [ 31.294932][ T1] kernel_init+0x12/0x1c5 [ 31.294932][ T1] ret_from_fork+0x24/0x30 [ 31.294976][ T1] mmgrab (____ptrval____) to 4 [ 31.300161][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.304932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.304932][ T1] Call Trace: [ 31.304932][ T1] dump_stack+0x172/0x1f0 [ 31.304932][ T1] __schedule+0xd03/0x1580 [ 31.304932][ T1] ? __sched_text_start+0x8/0x8 [ 31.304932][ T1] schedule+0xa8/0x260 [ 31.304932][ T1] schedule_timeout+0x717/0xc50 [ 31.304932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.304932][ T1] ? find_held_lock+0x35/0x130 [ 31.304932][ T1] ? usleep_range+0x170/0x170 [ 31.304932][ T1] ? kasan_check_write+0x14/0x20 [ 31.304932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.304932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.304932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.304932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.304932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.304932][ T1] ? kasan_check_read+0x11/0x20 [ 31.304932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.304932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.304932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.304932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.304932][ T1] ? kasan_check_read+0x11/0x20 [ 31.304932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.304932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.304932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.304932][ T1] ? pointer+0x750/0x750 [ 31.304932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.304932][ T1] ? process_one_work+0x1790/0x1790 [ 31.304932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.304932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.304932][ T1] ? vsprintf+0x40/0x40 [ 31.304932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.304932][ T1] create_worker+0x25c/0x570 [ 31.304932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.304932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.304932][ T1] ? find_next_bit+0x107/0x130 [ 31.304932][ T1] workqueue_init+0x690/0x71e [ 31.304932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.304932][ T1] ? rest_init+0x37b/0x37b [ 31.304932][ T1] kernel_init+0x12/0x1c5 [ 31.304932][ T1] ret_from_fork+0x24/0x30 [ 31.304966][ T7] mmdrop (____ptrval____) before 4 [ 31.314980][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.322369][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.324932][ T7] Workqueue: 0x0 (events) [ 31.324932][ T7] Call Trace: [ 31.324932][ T7] dump_stack+0x172/0x1f0 [ 31.324932][ T7] finish_task_switch+0x239/0x790 [ 31.324932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.324932][ T7] __schedule+0x7d3/0x1580 [ 31.324932][ T7] ? __sched_text_start+0x8/0x8 [ 31.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.324932][ T7] ? kthread_data+0x58/0xc0 [ 31.324932][ T7] schedule+0xa8/0x260 [ 31.324932][ T7] worker_thread+0x248/0xe40 [ 31.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.324932][ T7] kthread+0x354/0x420 [ 31.324932][ T7] ? process_one_work+0x1790/0x1790 [ 31.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.324932][ T7] ret_from_fork+0x24/0x30 [ 31.324979][ T7] mmgrab (____ptrval____) to 4 [ 31.330029][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.334932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.334932][ T7] Workqueue: 0x0 (events) [ 31.334932][ T7] Call Trace: [ 31.334932][ T7] dump_stack+0x172/0x1f0 [ 31.334932][ T7] __schedule+0xd03/0x1580 [ 31.334932][ T7] ? __sched_text_start+0x8/0x8 [ 31.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.334932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.334932][ T7] ? kthread_data+0x58/0xc0 [ 31.334932][ T7] schedule+0xa8/0x260 [ 31.334932][ T7] worker_thread+0x248/0xe40 [ 31.334932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.334932][ T7] kthread+0x354/0x420 [ 31.334932][ T7] ? process_one_work+0x1790/0x1790 [ 31.334932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.334932][ T7] ret_from_fork+0x24/0x30 [ 31.334964][ T8] mmdrop (____ptrval____) before 4 [ 31.340451][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.344932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.344932][ T8] Call Trace: [ 31.344932][ T8] dump_stack+0x172/0x1f0 [ 31.344932][ T8] finish_task_switch+0x239/0x790 [ 31.344932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.344932][ T8] __schedule+0x7d3/0x1580 [ 31.344932][ T8] ? __sched_text_start+0x8/0x8 [ 31.344932][ T8] ? complete+0x61/0x80 [ 31.344932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.344932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.344932][ T8] preempt_schedule+0x4b/0x60 [ 31.344932][ T8] ___preempt_schedule+0x16/0x18 [ 31.344932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.344932][ T8] complete+0x61/0x80 [ 31.344932][ T8] kthread+0x275/0x420 [ 31.344932][ T8] ? process_one_work+0x1790/0x1790 [ 31.344932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.344932][ T8] ret_from_fork+0x24/0x30 [ 31.344980][ T8] mmgrab (____ptrval____) to 4 [ 31.349753][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.354932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.354932][ T8] Call Trace: [ 31.354932][ T8] dump_stack+0x172/0x1f0 [ 31.354932][ T8] __schedule+0xd03/0x1580 [ 31.354932][ T8] ? __sched_text_start+0x8/0x8 [ 31.354932][ T8] ? complete+0x61/0x80 [ 31.354932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.354932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.354932][ T8] preempt_schedule+0x4b/0x60 [ 31.354932][ T8] ___preempt_schedule+0x16/0x18 [ 31.354932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.354932][ T8] complete+0x61/0x80 [ 31.354932][ T8] kthread+0x275/0x420 [ 31.354932][ T8] ? process_one_work+0x1790/0x1790 [ 31.354932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.354932][ T8] ret_from_fork+0x24/0x30 [ 31.354963][ T1] mmdrop (____ptrval____) before 4 [ 31.364971][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.372083][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.374932][ T1] Call Trace: [ 31.374932][ T1] dump_stack+0x172/0x1f0 [ 31.374932][ T1] finish_task_switch+0x239/0x790 [ 31.374932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.374932][ T1] __schedule+0x7d3/0x1580 [ 31.374932][ T1] ? __sched_text_start+0x8/0x8 [ 31.374932][ T1] schedule+0xa8/0x260 [ 31.374932][ T1] schedule_timeout+0x717/0xc50 [ 31.374932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.374932][ T1] ? find_held_lock+0x35/0x130 [ 31.374932][ T1] ? usleep_range+0x170/0x170 [ 31.374932][ T1] ? kasan_check_write+0x14/0x20 [ 31.374932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.374932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.374932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.374932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.374932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.374932][ T1] ? kasan_check_read+0x11/0x20 [ 31.374932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.374932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.374932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.374932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.374932][ T1] ? kasan_check_read+0x11/0x20 [ 31.374932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.374932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.374932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.374932][ T1] ? pointer+0x750/0x750 [ 31.374932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.374932][ T1] ? process_one_work+0x1790/0x1790 [ 31.374932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.374932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.374932][ T1] ? vsprintf+0x40/0x40 [ 31.374932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.374932][ T1] create_worker+0x25c/0x570 [ 31.374932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.374932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.374932][ T1] ? find_next_bit+0x107/0x130 [ 31.374932][ T1] workqueue_init+0x690/0x71e [ 31.374932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.374932][ T1] ? rest_init+0x37b/0x37b [ 31.374932][ T1] kernel_init+0x12/0x1c5 [ 31.374932][ T1] ret_from_fork+0x24/0x30 [ 31.374982][ T1] mmgrab (____ptrval____) to 4 [ 31.379750][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.384932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.384932][ T1] Call Trace: [ 31.384932][ T1] dump_stack+0x172/0x1f0 [ 31.384932][ T1] __schedule+0xd03/0x1580 [ 31.384932][ T1] ? __sched_text_start+0x8/0x8 [ 31.384932][ T1] schedule+0xa8/0x260 [ 31.384932][ T1] schedule_timeout+0x717/0xc50 [ 31.384932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.384932][ T1] ? find_held_lock+0x35/0x130 [ 31.384932][ T1] ? usleep_range+0x170/0x170 [ 31.384932][ T1] ? kasan_check_write+0x14/0x20 [ 31.384932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.384932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.384932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.384932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.384932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.384932][ T1] ? kasan_check_read+0x11/0x20 [ 31.384932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.384932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.384932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.384932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.384932][ T1] ? kasan_check_read+0x11/0x20 [ 31.384932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.384932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.384932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.384932][ T1] ? pointer+0x750/0x750 [ 31.384932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.384932][ T1] ? process_one_work+0x1790/0x1790 [ 31.384932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.384932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.384932][ T1] ? vsprintf+0x40/0x40 [ 31.384932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.384932][ T1] create_worker+0x25c/0x570 [ 31.384932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.384932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.384932][ T1] ? find_next_bit+0x107/0x130 [ 31.384932][ T1] workqueue_init+0x690/0x71e [ 31.384932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.384932][ T1] ? rest_init+0x37b/0x37b [ 31.384932][ T1] kernel_init+0x12/0x1c5 [ 31.384932][ T1] ret_from_fork+0x24/0x30 [ 31.384963][ T8] mmdrop (____ptrval____) before 4 [ 31.394972][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.402275][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.404932][ T8] Call Trace: [ 31.404932][ T8] dump_stack+0x172/0x1f0 [ 31.404932][ T8] finish_task_switch+0x239/0x790 [ 31.404932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.404932][ T8] __schedule+0x7d3/0x1580 [ 31.404932][ T8] ? __sched_text_start+0x8/0x8 [ 31.404932][ T8] ? complete+0x61/0x80 [ 31.404932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.404932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.404932][ T8] preempt_schedule+0x4b/0x60 [ 31.404932][ T8] ___preempt_schedule+0x16/0x18 [ 31.404932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.404932][ T8] complete+0x61/0x80 [ 31.404932][ T8] kthread+0x275/0x420 [ 31.404932][ T8] ? process_one_work+0x1790/0x1790 [ 31.404932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.404932][ T8] ret_from_fork+0x24/0x30 [ 31.404976][ T8] mmgrab (____ptrval____) to 4 [ 31.410043][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.414932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.414932][ T8] Call Trace: [ 31.414932][ T8] dump_stack+0x172/0x1f0 [ 31.414932][ T8] __schedule+0xd03/0x1580 [ 31.414932][ T8] ? __sched_text_start+0x8/0x8 [ 31.414932][ T8] ? complete+0x61/0x80 [ 31.414932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.414932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.414932][ T8] preempt_schedule+0x4b/0x60 [ 31.414932][ T8] ___preempt_schedule+0x16/0x18 [ 31.414932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.414932][ T8] complete+0x61/0x80 [ 31.414932][ T8] kthread+0x275/0x420 [ 31.414932][ T8] ? process_one_work+0x1790/0x1790 [ 31.414932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.414932][ T8] ret_from_fork+0x24/0x30 [ 31.414963][ T7] mmdrop (____ptrval____) before 4 [ 31.424980][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.432392][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.434932][ T7] Workqueue: 0x0 (events) [ 31.434932][ T7] Call Trace: [ 31.434932][ T7] dump_stack+0x172/0x1f0 [ 31.434932][ T7] finish_task_switch+0x239/0x790 [ 31.434932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.434932][ T7] __schedule+0x7d3/0x1580 [ 31.434932][ T7] ? __sched_text_start+0x8/0x8 [ 31.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.434932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.434932][ T7] ? kthread_data+0x58/0xc0 [ 31.434932][ T7] schedule+0xa8/0x260 [ 31.434932][ T7] worker_thread+0x248/0xe40 [ 31.434932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.434932][ T7] kthread+0x354/0x420 [ 31.434932][ T7] ? process_one_work+0x1790/0x1790 [ 31.434932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.434932][ T7] ret_from_fork+0x24/0x30 [ 31.434995][ T7] mmgrab (____ptrval____) to 4 [ 31.439979][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.444932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.444932][ T7] Workqueue: 0x0 (events) [ 31.444932][ T7] Call Trace: [ 31.444932][ T7] dump_stack+0x172/0x1f0 [ 31.444932][ T7] __schedule+0xd03/0x1580 [ 31.444932][ T7] ? __sched_text_start+0x8/0x8 [ 31.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.444932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.444932][ T7] ? kthread_data+0x58/0xc0 [ 31.444932][ T7] schedule+0xa8/0x260 [ 31.444932][ T7] worker_thread+0x248/0xe40 [ 31.444932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.444932][ T7] kthread+0x354/0x420 [ 31.444932][ T7] ? process_one_work+0x1790/0x1790 [ 31.444932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.444932][ T7] ret_from_fork+0x24/0x30 [ 31.444965][ T1] mmdrop (____ptrval____) before 4 [ 31.454967][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.462159][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.464932][ T1] Call Trace: [ 31.464932][ T1] dump_stack+0x172/0x1f0 [ 31.464932][ T1] finish_task_switch+0x239/0x790 [ 31.464932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.464932][ T1] __schedule+0x7d3/0x1580 [ 31.464932][ T1] ? __sched_text_start+0x8/0x8 [ 31.464932][ T1] schedule+0xa8/0x260 [ 31.464932][ T1] schedule_timeout+0x717/0xc50 [ 31.464932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.464932][ T1] ? find_held_lock+0x35/0x130 [ 31.464932][ T1] ? usleep_range+0x170/0x170 [ 31.464932][ T1] ? kasan_check_write+0x14/0x20 [ 31.464932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.464932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.464932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.464932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.464932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.464932][ T1] ? kasan_check_read+0x11/0x20 [ 31.464932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.464932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.464932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.464932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.464932][ T1] ? kasan_check_read+0x11/0x20 [ 31.464932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.464932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.464932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.464932][ T1] ? pointer+0x750/0x750 [ 31.464932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.464932][ T1] ? process_one_work+0x1790/0x1790 [ 31.464932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.464932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.464932][ T1] ? vsprintf+0x40/0x40 [ 31.464932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.464932][ T1] create_worker+0x25c/0x570 [ 31.464932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.464932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.464932][ T1] ? find_next_bit+0x107/0x130 [ 31.464932][ T1] workqueue_init+0x690/0x71e [ 31.464932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.464932][ T1] ? rest_init+0x37b/0x37b [ 31.464932][ T1] kernel_init+0x12/0x1c5 [ 31.464932][ T1] ret_from_fork+0x24/0x30 [ 31.464983][ T1] mmgrab (____ptrval____) to 4 [ 31.470006][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.474932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.474932][ T1] Call Trace: [ 31.474932][ T1] dump_stack+0x172/0x1f0 [ 31.474932][ T1] __schedule+0xd03/0x1580 [ 31.474932][ T1] ? __sched_text_start+0x8/0x8 [ 31.474932][ T1] schedule+0xa8/0x260 [ 31.474932][ T1] schedule_timeout+0x717/0xc50 [ 31.474932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.474932][ T1] ? find_held_lock+0x35/0x130 [ 31.474932][ T1] ? usleep_range+0x170/0x170 [ 31.474932][ T1] ? kasan_check_write+0x14/0x20 [ 31.474932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.474932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.474932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.474932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.474932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.474932][ T1] ? kasan_check_read+0x11/0x20 [ 31.474932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.474932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.474932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.474932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.474932][ T1] ? kasan_check_read+0x11/0x20 [ 31.474932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.474932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.474932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.474932][ T1] ? pointer+0x750/0x750 [ 31.474932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.474932][ T1] ? process_one_work+0x1790/0x1790 [ 31.474932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.474932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.474932][ T1] ? vsprintf+0x40/0x40 [ 31.474932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.474932][ T1] create_worker+0x25c/0x570 [ 31.474932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.474932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.474932][ T1] ? find_next_bit+0x107/0x130 [ 31.474932][ T1] workqueue_init+0x690/0x71e [ 31.474932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.474932][ T1] ? rest_init+0x37b/0x37b [ 31.474932][ T1] kernel_init+0x12/0x1c5 [ 31.474932][ T1] ret_from_fork+0x24/0x30 [ 31.474963][ T8] mmdrop (____ptrval____) before 4 [ 31.484965][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.492299][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.494932][ T8] Call Trace: [ 31.494932][ T8] dump_stack+0x172/0x1f0 [ 31.494932][ T8] finish_task_switch+0x239/0x790 [ 31.494932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.494932][ T8] __schedule+0x7d3/0x1580 [ 31.494932][ T8] ? __sched_text_start+0x8/0x8 [ 31.494932][ T8] ? complete+0x61/0x80 [ 31.494932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.494932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.494932][ T8] preempt_schedule+0x4b/0x60 [ 31.494932][ T8] ___preempt_schedule+0x16/0x18 [ 31.494932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.494932][ T8] complete+0x61/0x80 [ 31.494932][ T8] kthread+0x275/0x420 [ 31.494932][ T8] ? process_one_work+0x1790/0x1790 [ 31.494932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.494932][ T8] ret_from_fork+0x24/0x30 [ 31.494974][ T8] mmgrab (____ptrval____) to 4 [ 31.499737][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.504932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.504932][ T8] Call Trace: [ 31.504932][ T8] dump_stack+0x172/0x1f0 [ 31.504932][ T8] __schedule+0xd03/0x1580 [ 31.504932][ T8] ? __sched_text_start+0x8/0x8 [ 31.504932][ T8] ? complete+0x61/0x80 [ 31.504932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.504932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.504932][ T8] preempt_schedule+0x4b/0x60 [ 31.504932][ T8] ___preempt_schedule+0x16/0x18 [ 31.504932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.504932][ T8] complete+0x61/0x80 [ 31.504932][ T8] kthread+0x275/0x420 [ 31.504932][ T8] ? process_one_work+0x1790/0x1790 [ 31.504932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.504932][ T8] ret_from_fork+0x24/0x30 [ 31.504963][ T7] mmdrop (____ptrval____) before 4 [ 31.514973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.522450][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.524932][ T7] Workqueue: 0x0 (events) [ 31.524932][ T7] Call Trace: [ 31.524932][ T7] dump_stack+0x172/0x1f0 [ 31.524932][ T7] finish_task_switch+0x239/0x790 [ 31.524932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.524932][ T7] __schedule+0x7d3/0x1580 [ 31.524932][ T7] ? __sched_text_start+0x8/0x8 [ 31.524932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.524932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.524932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.524932][ T7] ? kthread_data+0x58/0xc0 [ 31.524932][ T7] schedule+0xa8/0x260 [ 31.524932][ T7] worker_thread+0x248/0xe40 [ 31.524932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.524932][ T7] kthread+0x354/0x420 [ 31.524932][ T7] ? process_one_work+0x1790/0x1790 [ 31.524932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.524932][ T7] ret_from_fork+0x24/0x30 [ 31.524974][ T7] mmgrab (____ptrval____) to 4 [ 31.529848][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.534932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.534932][ T7] Workqueue: 0x0 (events) [ 31.534932][ T7] Call Trace: [ 31.534932][ T7] dump_stack+0x172/0x1f0 [ 31.534932][ T7] __schedule+0xd03/0x1580 [ 31.534932][ T7] ? __sched_text_start+0x8/0x8 [ 31.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.534932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.534932][ T7] ? kthread_data+0x58/0xc0 [ 31.534932][ T7] schedule+0xa8/0x260 [ 31.534932][ T7] worker_thread+0x248/0xe40 [ 31.534932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.534932][ T7] kthread+0x354/0x420 [ 31.534932][ T7] ? process_one_work+0x1790/0x1790 [ 31.534932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.534932][ T7] ret_from_fork+0x24/0x30 [ 31.534965][ T1] mmdrop (____ptrval____) before 4 [ 31.544966][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.552184][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.554932][ T1] Call Trace: [ 31.554932][ T1] dump_stack+0x172/0x1f0 [ 31.554932][ T1] finish_task_switch+0x239/0x790 [ 31.554932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.554932][ T1] __schedule+0x7d3/0x1580 [ 31.554932][ T1] ? __sched_text_start+0x8/0x8 [ 31.554932][ T1] schedule+0xa8/0x260 [ 31.554932][ T1] schedule_timeout+0x717/0xc50 [ 31.554932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.554932][ T1] ? find_held_lock+0x35/0x130 [ 31.554932][ T1] ? usleep_range+0x170/0x170 [ 31.554932][ T1] ? kasan_check_write+0x14/0x20 [ 31.554932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.554932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.554932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.554932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.554932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.554932][ T1] ? kasan_check_read+0x11/0x20 [ 31.554932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.554932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.554932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.554932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.554932][ T1] ? kasan_check_read+0x11/0x20 [ 31.554932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.554932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.554932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.554932][ T1] ? pointer+0x750/0x750 [ 31.554932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.554932][ T1] ? process_one_work+0x1790/0x1790 [ 31.554932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.554932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.554932][ T1] ? vsprintf+0x40/0x40 [ 31.554932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.554932][ T1] create_worker+0x25c/0x570 [ 31.554932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.554932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.554932][ T1] ? find_next_bit+0x107/0x130 [ 31.554932][ T1] workqueue_init+0x690/0x71e [ 31.554932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.554932][ T1] ? rest_init+0x37b/0x37b [ 31.554932][ T1] kernel_init+0x12/0x1c5 [ 31.554932][ T1] ret_from_fork+0x24/0x30 [ 31.554976][ T1] mmgrab (____ptrval____) to 4 [ 31.559827][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.564932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.564932][ T1] Call Trace: [ 31.564932][ T1] dump_stack+0x172/0x1f0 [ 31.564932][ T1] __schedule+0xd03/0x1580 [ 31.564932][ T1] ? __sched_text_start+0x8/0x8 [ 31.564932][ T1] schedule+0xa8/0x260 [ 31.564932][ T1] schedule_timeout+0x717/0xc50 [ 31.564932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.564932][ T1] ? find_held_lock+0x35/0x130 [ 31.564932][ T1] ? usleep_range+0x170/0x170 [ 31.564932][ T1] ? kasan_check_write+0x14/0x20 [ 31.564932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.564932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.564932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.564932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.564932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.564932][ T1] ? kasan_check_read+0x11/0x20 [ 31.564932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.564932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.564932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.564932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.564932][ T1] ? kasan_check_read+0x11/0x20 [ 31.564932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.564932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.564932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.564932][ T1] ? pointer+0x750/0x750 [ 31.564932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.564932][ T1] ? process_one_work+0x1790/0x1790 [ 31.564932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.564932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.564932][ T1] ? vsprintf+0x40/0x40 [ 31.564932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.564932][ T1] create_worker+0x25c/0x570 [ 31.564932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.564932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.564932][ T1] ? find_next_bit+0x107/0x130 [ 31.564932][ T1] workqueue_init+0x690/0x71e [ 31.564932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.564932][ T1] ? rest_init+0x37b/0x37b [ 31.564932][ T1] kernel_init+0x12/0x1c5 [ 31.564932][ T1] ret_from_fork+0x24/0x30 [ 31.564962][ T8] mmdrop (____ptrval____) before 4 [ 31.570170][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.574932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.574932][ T8] Call Trace: [ 31.574932][ T8] dump_stack+0x172/0x1f0 [ 31.574932][ T8] finish_task_switch+0x239/0x790 [ 31.574932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.574932][ T8] __schedule+0x7d3/0x1580 [ 31.574932][ T8] ? __sched_text_start+0x8/0x8 [ 31.574932][ T8] ? complete+0x61/0x80 [ 31.574932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.574932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.574932][ T8] preempt_schedule+0x4b/0x60 [ 31.574932][ T8] ___preempt_schedule+0x16/0x18 [ 31.574932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.574932][ T8] complete+0x61/0x80 [ 31.574932][ T8] kthread+0x275/0x420 [ 31.574932][ T8] ? process_one_work+0x1790/0x1790 [ 31.574932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.574932][ T8] ret_from_fork+0x24/0x30 [ 31.574976][ T8] mmgrab (____ptrval____) to 4 [ 31.579953][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.584932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.584932][ T8] Call Trace: [ 31.584932][ T8] dump_stack+0x172/0x1f0 [ 31.584932][ T8] __schedule+0xd03/0x1580 [ 31.584932][ T8] ? __sched_text_start+0x8/0x8 [ 31.584932][ T8] ? complete+0x61/0x80 [ 31.584932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.584932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.584932][ T8] preempt_schedule+0x4b/0x60 [ 31.584932][ T8] ___preempt_schedule+0x16/0x18 [ 31.584932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.584932][ T8] complete+0x61/0x80 [ 31.584932][ T8] kthread+0x275/0x420 [ 31.584932][ T8] ? process_one_work+0x1790/0x1790 [ 31.584932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.584932][ T8] ret_from_fork+0x24/0x30 [ 31.584964][ T7] mmdrop (____ptrval____) before 4 [ 31.591431][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.594932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.594932][ T7] Workqueue: 0x0 (events) [ 31.594932][ T7] Call Trace: [ 31.594932][ T7] dump_stack+0x172/0x1f0 [ 31.594932][ T7] finish_task_switch+0x239/0x790 [ 31.594932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.594932][ T7] __schedule+0x7d3/0x1580 [ 31.594932][ T7] ? __sched_text_start+0x8/0x8 [ 31.594932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.594932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.594932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.594932][ T7] ? kthread_data+0x58/0xc0 [ 31.594932][ T7] schedule+0xa8/0x260 [ 31.594932][ T7] worker_thread+0x248/0xe40 [ 31.594932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.594932][ T7] kthread+0x354/0x420 [ 31.594932][ T7] ? process_one_work+0x1790/0x1790 [ 31.594932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.594932][ T7] ret_from_fork+0x24/0x30 [ 31.594976][ T7] mmgrab (____ptrval____) to 4 [ 31.599839][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.604932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.604932][ T7] Workqueue: 0x0 (events) [ 31.604932][ T7] Call Trace: [ 31.604932][ T7] dump_stack+0x172/0x1f0 [ 31.604932][ T7] __schedule+0xd03/0x1580 [ 31.604932][ T7] ? __sched_text_start+0x8/0x8 [ 31.604932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.604932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.604932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.604932][ T7] ? kthread_data+0x58/0xc0 [ 31.604932][ T7] schedule+0xa8/0x260 [ 31.604932][ T7] worker_thread+0x248/0xe40 [ 31.604932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.604932][ T7] kthread+0x354/0x420 [ 31.604932][ T7] ? process_one_work+0x1790/0x1790 [ 31.604932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.604932][ T7] ret_from_fork+0x24/0x30 [ 31.604964][ T1] mmdrop (____ptrval____) before 4 [ 31.614977][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.622355][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.624932][ T1] Call Trace: [ 31.624932][ T1] dump_stack+0x172/0x1f0 [ 31.624932][ T1] finish_task_switch+0x239/0x790 [ 31.624932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.624932][ T1] __schedule+0x7d3/0x1580 [ 31.624932][ T1] ? __sched_text_start+0x8/0x8 [ 31.624932][ T1] schedule+0xa8/0x260 [ 31.624932][ T1] schedule_timeout+0x717/0xc50 [ 31.624932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.624932][ T1] ? find_held_lock+0x35/0x130 [ 31.624932][ T1] ? usleep_range+0x170/0x170 [ 31.624932][ T1] ? kasan_check_write+0x14/0x20 [ 31.624932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.624932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.624932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.624932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.624932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.624932][ T1] ? kasan_check_read+0x11/0x20 [ 31.624932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.624932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.624932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.624932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.624932][ T1] ? kasan_check_read+0x11/0x20 [ 31.624932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.624932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.624932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.624932][ T1] ? pointer+0x750/0x750 [ 31.624932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.624932][ T1] ? process_one_work+0x1790/0x1790 [ 31.624932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.624932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.624932][ T1] ? vsprintf+0x40/0x40 [ 31.624932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.624932][ T1] create_worker+0x25c/0x570 [ 31.624932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.624932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.624932][ T1] ? find_next_bit+0x107/0x130 [ 31.624932][ T1] workqueue_init+0x690/0x71e [ 31.624932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.624932][ T1] ? rest_init+0x37b/0x37b [ 31.624932][ T1] kernel_init+0x12/0x1c5 [ 31.624932][ T1] ret_from_fork+0x24/0x30 [ 31.624976][ T1] mmgrab (____ptrval____) to 4 [ 31.630224][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.634932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.634932][ T1] Call Trace: [ 31.634932][ T1] dump_stack+0x172/0x1f0 [ 31.634932][ T1] __schedule+0xd03/0x1580 [ 31.634932][ T1] ? __sched_text_start+0x8/0x8 [ 31.634932][ T1] schedule+0xa8/0x260 [ 31.634932][ T1] schedule_timeout+0x717/0xc50 [ 31.634932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.634932][ T1] ? find_held_lock+0x35/0x130 [ 31.634932][ T1] ? usleep_range+0x170/0x170 [ 31.634932][ T1] ? kasan_check_write+0x14/0x20 [ 31.634932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.634932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.634932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.634932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.634932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.634932][ T1] ? kasan_check_read+0x11/0x20 [ 31.634932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.634932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.634932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.634932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.634932][ T1] ? kasan_check_read+0x11/0x20 [ 31.634932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.634932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.634932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.634932][ T1] ? pointer+0x750/0x750 [ 31.634932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.634932][ T1] ? process_one_work+0x1790/0x1790 [ 31.634932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.634932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.634932][ T1] ? vsprintf+0x40/0x40 [ 31.634932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.634932][ T1] create_worker+0x25c/0x570 [ 31.634932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.634932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.634932][ T1] ? find_next_bit+0x107/0x130 [ 31.634932][ T1] workqueue_init+0x690/0x71e [ 31.634932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.634932][ T1] ? rest_init+0x37b/0x37b [ 31.634932][ T1] kernel_init+0x12/0x1c5 [ 31.634932][ T1] ret_from_fork+0x24/0x30 [ 31.634981][ T8] mmdrop (____ptrval____) before 4 [ 31.644986][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.654479][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.654932][ T8] Call Trace: [ 31.654932][ T8] dump_stack+0x172/0x1f0 [ 31.654932][ T8] finish_task_switch+0x239/0x790 [ 31.654932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.654932][ T8] __schedule+0x7d3/0x1580 [ 31.654932][ T8] ? __sched_text_start+0x8/0x8 [ 31.654932][ T8] ? complete+0x61/0x80 [ 31.654932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.654932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.654932][ T8] preempt_schedule+0x4b/0x60 [ 31.654932][ T8] ___preempt_schedule+0x16/0x18 [ 31.654932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.654932][ T8] complete+0x61/0x80 [ 31.654932][ T8] kthread+0x275/0x420 [ 31.654932][ T8] ? process_one_work+0x1790/0x1790 [ 31.654932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.654932][ T8] ret_from_fork+0x24/0x30 [ 31.654984][ T8] mmgrab (____ptrval____) to 4 [ 31.659752][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.664932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.664932][ T8] Call Trace: [ 31.664932][ T8] dump_stack+0x172/0x1f0 [ 31.664932][ T8] __schedule+0xd03/0x1580 [ 31.664932][ T8] ? __sched_text_start+0x8/0x8 [ 31.664932][ T8] ? complete+0x61/0x80 [ 31.664932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.664932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.664932][ T8] preempt_schedule+0x4b/0x60 [ 31.664932][ T8] ___preempt_schedule+0x16/0x18 [ 31.664932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.664932][ T8] complete+0x61/0x80 [ 31.664932][ T8] kthread+0x275/0x420 [ 31.664932][ T8] ? process_one_work+0x1790/0x1790 [ 31.664932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.664932][ T8] ret_from_fork+0x24/0x30 [ 31.664963][ T7] mmdrop (____ptrval____) before 4 [ 31.674975][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.683051][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.684932][ T7] Workqueue: 0x0 (events) [ 31.684932][ T7] Call Trace: [ 31.684932][ T7] dump_stack+0x172/0x1f0 [ 31.684932][ T7] finish_task_switch+0x239/0x790 [ 31.684932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.684932][ T7] __schedule+0x7d3/0x1580 [ 31.684932][ T7] ? __sched_text_start+0x8/0x8 [ 31.684932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.684932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.684932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.684932][ T7] ? kthread_data+0x58/0xc0 [ 31.684932][ T7] schedule+0xa8/0x260 [ 31.684932][ T7] worker_thread+0x248/0xe40 [ 31.684932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.684932][ T7] kthread+0x354/0x420 [ 31.684932][ T7] ? process_one_work+0x1790/0x1790 [ 31.684932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.684932][ T7] ret_from_fork+0x24/0x30 [ 31.684975][ T7] mmgrab (____ptrval____) to 4 [ 31.689849][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.694932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.694932][ T7] Workqueue: 0x0 (events) [ 31.694932][ T7] Call Trace: [ 31.694932][ T7] dump_stack+0x172/0x1f0 [ 31.694932][ T7] __schedule+0xd03/0x1580 [ 31.694932][ T7] ? __sched_text_start+0x8/0x8 [ 31.694932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.694932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.694932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.694932][ T7] ? kthread_data+0x58/0xc0 [ 31.694932][ T7] schedule+0xa8/0x260 [ 31.694932][ T7] worker_thread+0x248/0xe40 [ 31.694932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.694932][ T7] kthread+0x354/0x420 [ 31.694932][ T7] ? process_one_work+0x1790/0x1790 [ 31.694932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.694932][ T7] ret_from_fork+0x24/0x30 [ 31.694963][ T1] mmdrop (____ptrval____) before 4 [ 31.704972][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.712085][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.714932][ T1] Call Trace: [ 31.714932][ T1] dump_stack+0x172/0x1f0 [ 31.714932][ T1] finish_task_switch+0x239/0x790 [ 31.714932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.714932][ T1] __schedule+0x7d3/0x1580 [ 31.714932][ T1] ? __sched_text_start+0x8/0x8 [ 31.714932][ T1] schedule+0xa8/0x260 [ 31.714932][ T1] schedule_timeout+0x717/0xc50 [ 31.714932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.714932][ T1] ? find_held_lock+0x35/0x130 [ 31.714932][ T1] ? usleep_range+0x170/0x170 [ 31.714932][ T1] ? kasan_check_write+0x14/0x20 [ 31.714932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.714932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.714932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.714932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.714932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.714932][ T1] ? kasan_check_read+0x11/0x20 [ 31.714932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.714932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.714932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.714932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.714932][ T1] ? kasan_check_read+0x11/0x20 [ 31.714932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.714932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.714932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.714932][ T1] ? pointer+0x750/0x750 [ 31.714932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.714932][ T1] ? process_one_work+0x1790/0x1790 [ 31.714932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.714932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.714932][ T1] ? vsprintf+0x40/0x40 [ 31.714932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.714932][ T1] create_worker+0x25c/0x570 [ 31.714932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.714932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.714932][ T1] ? find_next_bit+0x107/0x130 [ 31.714932][ T1] workqueue_init+0x690/0x71e [ 31.714932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.714932][ T1] ? rest_init+0x37b/0x37b [ 31.714932][ T1] kernel_init+0x12/0x1c5 [ 31.714932][ T1] ret_from_fork+0x24/0x30 [ 31.714978][ T1] mmgrab (____ptrval____) to 4 [ 31.720146][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.724932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.724932][ T1] Call Trace: [ 31.724932][ T1] dump_stack+0x172/0x1f0 [ 31.724932][ T1] __schedule+0xd03/0x1580 [ 31.724932][ T1] ? __sched_text_start+0x8/0x8 [ 31.724932][ T1] schedule+0xa8/0x260 [ 31.724932][ T1] schedule_timeout+0x717/0xc50 [ 31.724932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.724932][ T1] ? find_held_lock+0x35/0x130 [ 31.724932][ T1] ? usleep_range+0x170/0x170 [ 31.724932][ T1] ? kasan_check_write+0x14/0x20 [ 31.724932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.724932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.724932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.724932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.724932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.724932][ T1] ? kasan_check_read+0x11/0x20 [ 31.724932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.724932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.724932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.724932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.724932][ T1] ? kasan_check_read+0x11/0x20 [ 31.724932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.724932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.724932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.724932][ T1] ? pointer+0x750/0x750 [ 31.724932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.724932][ T1] ? process_one_work+0x1790/0x1790 [ 31.724932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.724932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.724932][ T1] ? vsprintf+0x40/0x40 [ 31.724932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.724932][ T1] create_worker+0x25c/0x570 [ 31.724932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.724932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.724932][ T1] ? find_next_bit+0x107/0x130 [ 31.724932][ T1] workqueue_init+0x690/0x71e [ 31.724932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.724932][ T1] ? rest_init+0x37b/0x37b [ 31.724932][ T1] kernel_init+0x12/0x1c5 [ 31.724932][ T1] ret_from_fork+0x24/0x30 [ 31.724964][ T8] mmdrop (____ptrval____) before 4 [ 31.734971][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.741995][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.744932][ T8] Call Trace: [ 31.744932][ T8] dump_stack+0x172/0x1f0 [ 31.744932][ T8] finish_task_switch+0x239/0x790 [ 31.744932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.744932][ T8] __schedule+0x7d3/0x1580 [ 31.744932][ T8] ? __sched_text_start+0x8/0x8 [ 31.744932][ T8] ? complete+0x61/0x80 [ 31.744932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.744932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.744932][ T8] preempt_schedule+0x4b/0x60 [ 31.744932][ T8] ___preempt_schedule+0x16/0x18 [ 31.744932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.744932][ T8] complete+0x61/0x80 [ 31.744932][ T8] kthread+0x275/0x420 [ 31.744932][ T8] ? process_one_work+0x1790/0x1790 [ 31.744932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.744932][ T8] ret_from_fork+0x24/0x30 [ 31.745000][ T8] mmgrab (____ptrval____) to 4 [ 31.750216][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.754932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.754932][ T8] Call Trace: [ 31.754932][ T8] dump_stack+0x172/0x1f0 [ 31.754932][ T8] __schedule+0xd03/0x1580 [ 31.754932][ T8] ? __sched_text_start+0x8/0x8 [ 31.754932][ T8] ? complete+0x61/0x80 [ 31.754932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.754932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.754932][ T8] preempt_schedule+0x4b/0x60 [ 31.754932][ T8] ___preempt_schedule+0x16/0x18 [ 31.754932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.754932][ T8] complete+0x61/0x80 [ 31.754932][ T8] kthread+0x275/0x420 [ 31.754932][ T8] ? process_one_work+0x1790/0x1790 [ 31.754932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.754932][ T8] ret_from_fork+0x24/0x30 [ 31.754973][ T7] mmdrop (____ptrval____) before 4 [ 31.760449][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.764932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.764932][ T7] Workqueue: 0x0 (events) [ 31.764932][ T7] Call Trace: [ 31.764932][ T7] dump_stack+0x172/0x1f0 [ 31.764932][ T7] finish_task_switch+0x239/0x790 [ 31.764932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.764932][ T7] __schedule+0x7d3/0x1580 [ 31.764932][ T7] ? __sched_text_start+0x8/0x8 [ 31.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.764932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.764932][ T7] ? kthread_data+0x58/0xc0 [ 31.764932][ T7] schedule+0xa8/0x260 [ 31.764932][ T7] worker_thread+0x248/0xe40 [ 31.764932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.764932][ T7] kthread+0x354/0x420 [ 31.764932][ T7] ? process_one_work+0x1790/0x1790 [ 31.764932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.764932][ T7] ret_from_fork+0x24/0x30 [ 31.764980][ T7] mmgrab (____ptrval____) to 4 [ 31.770146][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.774932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.774932][ T7] Workqueue: 0x0 (events) [ 31.774932][ T7] Call Trace: [ 31.774932][ T7] dump_stack+0x172/0x1f0 [ 31.774932][ T7] __schedule+0xd03/0x1580 [ 31.774932][ T7] ? __sched_text_start+0x8/0x8 [ 31.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.774932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.774932][ T7] ? kthread_data+0x58/0xc0 [ 31.774932][ T7] schedule+0xa8/0x260 [ 31.774932][ T7] worker_thread+0x248/0xe40 [ 31.774932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.774932][ T7] kthread+0x354/0x420 [ 31.774932][ T7] ? process_one_work+0x1790/0x1790 [ 31.774932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.774932][ T7] ret_from_fork+0x24/0x30 [ 31.774978][ T1] mmdrop (____ptrval____) before 4 [ 31.784974][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.792096][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.794932][ T1] Call Trace: [ 31.794932][ T1] dump_stack+0x172/0x1f0 [ 31.794932][ T1] finish_task_switch+0x239/0x790 [ 31.794932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.794932][ T1] __schedule+0x7d3/0x1580 [ 31.794932][ T1] ? __sched_text_start+0x8/0x8 [ 31.794932][ T1] schedule+0xa8/0x260 [ 31.794932][ T1] schedule_timeout+0x717/0xc50 [ 31.794932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.794932][ T1] ? find_held_lock+0x35/0x130 [ 31.794932][ T1] ? usleep_range+0x170/0x170 [ 31.794932][ T1] ? kasan_check_write+0x14/0x20 [ 31.794932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.794932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.794932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.794932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.794932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.794932][ T1] ? kasan_check_read+0x11/0x20 [ 31.794932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.794932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.794932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.794932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.794932][ T1] ? kasan_check_read+0x11/0x20 [ 31.794932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.794932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.794932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.794932][ T1] ? pointer+0x750/0x750 [ 31.794932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.794932][ T1] ? process_one_work+0x1790/0x1790 [ 31.794932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.794932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.794932][ T1] ? vsprintf+0x40/0x40 [ 31.794932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.794932][ T1] create_worker+0x25c/0x570 [ 31.794932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.794932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.794932][ T1] ? find_next_bit+0x107/0x130 [ 31.794932][ T1] workqueue_init+0x690/0x71e [ 31.794932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.794932][ T1] ? rest_init+0x37b/0x37b [ 31.794932][ T1] kernel_init+0x12/0x1c5 [ 31.794932][ T1] ret_from_fork+0x24/0x30 [ 31.794975][ T1] mmgrab (____ptrval____) to 4 [ 31.799889][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.804932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.804932][ T1] Call Trace: [ 31.804932][ T1] dump_stack+0x172/0x1f0 [ 31.804932][ T1] __schedule+0xd03/0x1580 [ 31.804932][ T1] ? __sched_text_start+0x8/0x8 [ 31.804932][ T1] schedule+0xa8/0x260 [ 31.804932][ T1] schedule_timeout+0x717/0xc50 [ 31.804932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.804932][ T1] ? find_held_lock+0x35/0x130 [ 31.804932][ T1] ? usleep_range+0x170/0x170 [ 31.804932][ T1] ? kasan_check_write+0x14/0x20 [ 31.804932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.804932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.804932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.804932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.804932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.804932][ T1] ? kasan_check_read+0x11/0x20 [ 31.804932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.804932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.804932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.804932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.804932][ T1] ? kasan_check_read+0x11/0x20 [ 31.804932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.804932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.804932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.804932][ T1] ? pointer+0x750/0x750 [ 31.804932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.804932][ T1] ? process_one_work+0x1790/0x1790 [ 31.804932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.804932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.804932][ T1] ? vsprintf+0x40/0x40 [ 31.804932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.804932][ T1] create_worker+0x25c/0x570 [ 31.804932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.804932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.804932][ T1] ? find_next_bit+0x107/0x130 [ 31.804932][ T1] workqueue_init+0x690/0x71e [ 31.804932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.804932][ T1] ? rest_init+0x37b/0x37b [ 31.804932][ T1] kernel_init+0x12/0x1c5 [ 31.804932][ T1] ret_from_fork+0x24/0x30 [ 31.804970][ T7] mmdrop (____ptrval____) before 4 [ 31.814973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.822378][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.824932][ T7] Workqueue: 0x0 (events) [ 31.824932][ T7] Call Trace: [ 31.824932][ T7] dump_stack+0x172/0x1f0 [ 31.824932][ T7] finish_task_switch+0x239/0x790 [ 31.824932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.824932][ T7] __schedule+0x7d3/0x1580 [ 31.824932][ T7] ? __sched_text_start+0x8/0x8 [ 31.824932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.824932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.824932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.824932][ T7] ? kthread_data+0x58/0xc0 [ 31.824932][ T7] schedule+0xa8/0x260 [ 31.824932][ T7] worker_thread+0x248/0xe40 [ 31.824932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.824932][ T7] kthread+0x354/0x420 [ 31.824932][ T7] ? process_one_work+0x1790/0x1790 [ 31.824932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.824932][ T7] ret_from_fork+0x24/0x30 [ 31.824974][ T7] mmgrab (____ptrval____) to 4 [ 31.829739][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.834932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.834932][ T7] Workqueue: 0x0 (events) [ 31.834932][ T7] Call Trace: [ 31.834932][ T7] dump_stack+0x172/0x1f0 [ 31.834932][ T7] __schedule+0xd03/0x1580 [ 31.834932][ T7] ? __sched_text_start+0x8/0x8 [ 31.834932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.834932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.834932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.834932][ T7] ? kthread_data+0x58/0xc0 [ 31.834932][ T7] schedule+0xa8/0x260 [ 31.834932][ T7] worker_thread+0x248/0xe40 [ 31.834932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.834932][ T7] kthread+0x354/0x420 [ 31.834932][ T7] ? process_one_work+0x1790/0x1790 [ 31.834932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.834932][ T7] ret_from_fork+0x24/0x30 [ 31.834986][ T8] mmdrop (____ptrval____) before 4 [ 31.840128][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.844932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.844932][ T8] Call Trace: [ 31.844932][ T8] dump_stack+0x172/0x1f0 [ 31.844932][ T8] finish_task_switch+0x239/0x790 [ 31.844932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.844932][ T8] __schedule+0x7d3/0x1580 [ 31.844932][ T8] ? __sched_text_start+0x8/0x8 [ 31.844932][ T8] ? complete+0x61/0x80 [ 31.844932][ T8] ? preempt_schedule+0x4b/0x60 [ 31.844932][ T8] preempt_schedule_common+0x4f/0xe0 [ 31.844932][ T8] preempt_schedule+0x4b/0x60 [ 31.844932][ T8] ___preempt_schedule+0x16/0x18 [ 31.844932][ T8] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 31.844932][ T8] complete+0x61/0x80 [ 31.844932][ T8] kthread+0x275/0x420 [ 31.844932][ T8] ? process_one_work+0x1790/0x1790 [ 31.844932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.844932][ T8] ret_from_fork+0x24/0x30 [ 31.844982][ T8] mmgrab (____ptrval____) to 4 [ 31.850205][ T8] CPU: 0 PID: 8 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 31.854932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.854932][ T8] Call Trace: [ 31.854932][ T8] dump_stack+0x172/0x1f0 [ 31.854932][ T8] __schedule+0xd03/0x1580 [ 31.854932][ T8] ? __sched_text_start+0x8/0x8 [ 31.854932][ T8] ? ___preempt_schedule+0x16/0x18 [ 31.854932][ T8] schedule+0xa8/0x260 [ 31.854932][ T8] kthread+0x27a/0x420 [ 31.854932][ T8] ? process_one_work+0x1790/0x1790 [ 31.854932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.854932][ T8] ret_from_fork+0x24/0x30 [ 31.854964][ T1] mmdrop (____ptrval____) before 4 [ 31.864980][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.872176][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.874932][ T1] Call Trace: [ 31.874932][ T1] dump_stack+0x172/0x1f0 [ 31.874932][ T1] finish_task_switch+0x239/0x790 [ 31.874932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.874932][ T1] __schedule+0x7d3/0x1580 [ 31.874932][ T1] ? __sched_text_start+0x8/0x8 [ 31.874932][ T1] schedule+0xa8/0x260 [ 31.874932][ T1] schedule_timeout+0x717/0xc50 [ 31.874932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.874932][ T1] ? find_held_lock+0x35/0x130 [ 31.874932][ T1] ? usleep_range+0x170/0x170 [ 31.874932][ T1] ? kasan_check_write+0x14/0x20 [ 31.874932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.874932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.874932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.874932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.874932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.874932][ T1] ? kasan_check_read+0x11/0x20 [ 31.874932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.874932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.874932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.874932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.874932][ T1] ? kasan_check_read+0x11/0x20 [ 31.874932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.874932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.874932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.874932][ T1] ? pointer+0x750/0x750 [ 31.874932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.874932][ T1] ? process_one_work+0x1790/0x1790 [ 31.874932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.874932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.874932][ T1] ? vsprintf+0x40/0x40 [ 31.874932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.874932][ T1] create_worker+0x25c/0x570 [ 31.874932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.874932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.874932][ T1] ? find_next_bit+0x107/0x130 [ 31.874932][ T1] workqueue_init+0x690/0x71e [ 31.874932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.874932][ T1] ? rest_init+0x37b/0x37b [ 31.874932][ T1] kernel_init+0x12/0x1c5 [ 31.874932][ T1] ret_from_fork+0x24/0x30 [ 31.874977][ T1] mmgrab (____ptrval____) to 4 [ 31.879913][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.884932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.884932][ T1] Call Trace: [ 31.884932][ T1] dump_stack+0x172/0x1f0 [ 31.884932][ T1] __schedule+0xd03/0x1580 [ 31.884932][ T1] ? __sched_text_start+0x8/0x8 [ 31.884932][ T1] schedule+0xa8/0x260 [ 31.884932][ T1] schedule_timeout+0x717/0xc50 [ 31.884932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.884932][ T1] ? find_held_lock+0x35/0x130 [ 31.884932][ T1] ? usleep_range+0x170/0x170 [ 31.884932][ T1] ? kasan_check_write+0x14/0x20 [ 31.884932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.884932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.884932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.884932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.884932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.884932][ T1] ? kasan_check_read+0x11/0x20 [ 31.884932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.884932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.884932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.884932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.884932][ T1] ? kasan_check_read+0x11/0x20 [ 31.884932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.884932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.884932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.884932][ T1] ? pointer+0x750/0x750 [ 31.884932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.884932][ T1] ? process_one_work+0x1790/0x1790 [ 31.884932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.884932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.884932][ T1] ? vsprintf+0x40/0x40 [ 31.884932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.884932][ T1] create_worker+0x25c/0x570 [ 31.884932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.884932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.884932][ T1] ? find_next_bit+0x107/0x130 [ 31.884932][ T1] workqueue_init+0x690/0x71e [ 31.884932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.884932][ T1] ? rest_init+0x37b/0x37b [ 31.884932][ T1] kernel_init+0x12/0x1c5 [ 31.884932][ T1] ret_from_fork+0x24/0x30 [ 31.884965][ T7] mmdrop (____ptrval____) before 4 [ 31.890310][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.894932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.894932][ T7] Workqueue: 0x0 (events) [ 31.894932][ T7] Call Trace: [ 31.894932][ T7] dump_stack+0x172/0x1f0 [ 31.894932][ T7] finish_task_switch+0x239/0x790 [ 31.894932][ T7] ? dump_stack+0x1de/0x1f0 [ 31.894932][ T7] __schedule+0x7d3/0x1580 [ 31.894932][ T7] ? __sched_text_start+0x8/0x8 [ 31.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.894932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.894932][ T7] ? kthread_data+0x58/0xc0 [ 31.894932][ T7] schedule+0xa8/0x260 [ 31.894932][ T7] worker_thread+0x248/0xe40 [ 31.894932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.894932][ T7] kthread+0x354/0x420 [ 31.894932][ T7] ? process_one_work+0x1790/0x1790 [ 31.894932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.894932][ T7] ret_from_fork+0x24/0x30 [ 31.895008][ T7] mmgrab (____ptrval____) to 4 [ 31.900205][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 31.904932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.904932][ T7] Workqueue: 0x0 (events) [ 31.904932][ T7] Call Trace: [ 31.904932][ T7] dump_stack+0x172/0x1f0 [ 31.904932][ T7] __schedule+0xd03/0x1580 [ 31.904932][ T7] ? __sched_text_start+0x8/0x8 [ 31.904932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.904932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.904932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.904932][ T7] ? kthread_data+0x58/0xc0 [ 31.904932][ T7] schedule+0xa8/0x260 [ 31.904932][ T7] worker_thread+0x248/0xe40 [ 31.904932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 31.904932][ T7] kthread+0x354/0x420 [ 31.904932][ T7] ? process_one_work+0x1790/0x1790 [ 31.904932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.904932][ T7] ret_from_fork+0x24/0x30 [ 31.904963][ T1] mmdrop (____ptrval____) before 4 [ 31.914977][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.922275][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.924932][ T1] Call Trace: [ 31.924932][ T1] dump_stack+0x172/0x1f0 [ 31.924932][ T1] finish_task_switch+0x239/0x790 [ 31.924932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.924932][ T1] __schedule+0x7d3/0x1580 [ 31.924932][ T1] ? __sched_text_start+0x8/0x8 [ 31.924932][ T1] schedule+0xa8/0x260 [ 31.924932][ T1] schedule_timeout+0x717/0xc50 [ 31.924932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.924932][ T1] ? find_held_lock+0x35/0x130 [ 31.924932][ T1] ? usleep_range+0x170/0x170 [ 31.924932][ T1] ? kasan_check_write+0x14/0x20 [ 31.924932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.924932][ T1] ? wait_for_completion_killable+0x29e/0x500 [ 31.924932][ T1] ? _raw_spin_unlock_irq+0x28/0x90 [ 31.924932][ T1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 31.924932][ T1] ? trace_hardirqs_on+0x67/0x220 [ 31.924932][ T1] ? kasan_check_read+0x11/0x20 [ 31.924932][ T1] wait_for_completion_killable+0x2a6/0x500 [ 31.924932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 31.924932][ T1] ? wait_for_completion_interruptible_timeout+0x4c0/0x4c0 [ 31.924932][ T1] ? wake_up_q+0xf0/0xf0 [ 31.924932][ T1] ? kasan_check_read+0x11/0x20 [ 31.924932][ T1] __kthread_create_on_node+0x289/0x460 [ 31.924932][ T1] ? kthread_parkme+0xb0/0xb0 [ 31.924932][ T1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.924932][ T1] ? pointer+0x750/0x750 [ 31.924932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.924932][ T1] ? process_one_work+0x1790/0x1790 [ 31.924932][ T1] kthread_create_on_node+0xbb/0xf0 [ 31.924932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 31.924932][ T1] ? vsprintf+0x40/0x40 [ 31.924932][ T1] ? ___preempt_schedule+0x16/0x18 [ 31.924932][ T1] create_worker+0x25c/0x570 [ 31.924932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.924932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.924932][ T1] ? find_next_bit+0x107/0x130 [ 31.924932][ T1] workqueue_init+0x690/0x71e [ 31.924932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.924932][ T1] ? rest_init+0x37b/0x37b [ 31.924932][ T1] kernel_init+0x12/0x1c5 [ 31.924932][ T1] ret_from_fork+0x24/0x30 [ 31.925038][ T1] mmgrab (____ptrval____) to 4 [ 31.929839][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.934932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.934932][ T1] Call Trace: [ 31.934932][ T1] dump_stack+0x172/0x1f0 [ 31.934932][ T1] __schedule+0xd03/0x1580 [ 31.934932][ T1] ? __sched_text_start+0x8/0x8 [ 31.934932][ T1] ? create_worker+0x3d4/0x570 [ 31.934932][ T1] ? preempt_schedule+0x4b/0x60 [ 31.934932][ T1] preempt_schedule_common+0x4f/0xe0 [ 31.934932][ T1] preempt_schedule+0x4b/0x60 [ 31.934932][ T1] ___preempt_schedule+0x16/0x18 [ 31.934932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 31.934932][ T1] create_worker+0x3d4/0x570 [ 31.934932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.934932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.934932][ T1] ? find_next_bit+0x107/0x130 [ 31.934932][ T1] workqueue_init+0x690/0x71e [ 31.934932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.934932][ T1] ? rest_init+0x37b/0x37b [ 31.934932][ T1] kernel_init+0x12/0x1c5 [ 31.934932][ T1] ret_from_fork+0x24/0x30 [ 31.934965][ T8] mmdrop (____ptrval____) before 4 [ 31.940092][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 31.944932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.944932][ T8] Call Trace: [ 31.944932][ T8] dump_stack+0x172/0x1f0 [ 31.944932][ T8] finish_task_switch+0x239/0x790 [ 31.944932][ T8] ? dump_stack+0x1de/0x1f0 [ 31.944932][ T8] __schedule+0x7d3/0x1580 [ 31.944932][ T8] ? __sched_text_start+0x8/0x8 [ 31.944932][ T8] ? ___preempt_schedule+0x16/0x18 [ 31.944932][ T8] schedule+0xa8/0x260 [ 31.944932][ T8] kthread+0x27a/0x420 [ 31.944932][ T8] ? process_one_work+0x1790/0x1790 [ 31.944932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.944932][ T8] ret_from_fork+0x24/0x30 [ 31.944978][ T8] mmgrab (____ptrval____) to 4 [ 31.949962][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 31.954932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.954932][ T8] Call Trace: [ 31.954932][ T8] dump_stack+0x172/0x1f0 [ 31.954932][ T8] __schedule+0xd03/0x1580 [ 31.954932][ T8] ? __sched_text_start+0x8/0x8 [ 31.954932][ T8] ? ___preempt_schedule+0x16/0x18 [ 31.954932][ T8] schedule+0xa8/0x260 [ 31.954932][ T8] kthread+0x27a/0x420 [ 31.954932][ T8] ? process_one_work+0x1790/0x1790 [ 31.954932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 31.954932][ T8] ret_from_fork+0x24/0x30 [ 31.954964][ T1] mmdrop (____ptrval____) before 4 [ 31.964977][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.972087][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.974932][ T1] Call Trace: [ 31.974932][ T1] dump_stack+0x172/0x1f0 [ 31.974932][ T1] finish_task_switch+0x239/0x790 [ 31.974932][ T1] ? dump_stack+0x1de/0x1f0 [ 31.974932][ T1] __schedule+0x7d3/0x1580 [ 31.974932][ T1] ? __sched_text_start+0x8/0x8 [ 31.974932][ T1] ? create_worker+0x3d4/0x570 [ 31.974932][ T1] ? preempt_schedule+0x4b/0x60 [ 31.974932][ T1] preempt_schedule_common+0x4f/0xe0 [ 31.974932][ T1] preempt_schedule+0x4b/0x60 [ 31.974932][ T1] ___preempt_schedule+0x16/0x18 [ 31.974932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 31.974932][ T1] create_worker+0x3d4/0x570 [ 31.974932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.974932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.974932][ T1] ? find_next_bit+0x107/0x130 [ 31.974932][ T1] workqueue_init+0x690/0x71e [ 31.974932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.974932][ T1] ? rest_init+0x37b/0x37b [ 31.974932][ T1] kernel_init+0x12/0x1c5 [ 31.974932][ T1] ret_from_fork+0x24/0x30 [ 31.974974][ T1] mmgrab (____ptrval____) to 4 [ 31.979903][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 31.984932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.984932][ T1] Call Trace: [ 31.984932][ T1] dump_stack+0x172/0x1f0 [ 31.984932][ T1] __schedule+0xd03/0x1580 [ 31.984932][ T1] ? __sched_text_start+0x8/0x8 [ 31.984932][ T1] ? create_worker+0x3d4/0x570 [ 31.984932][ T1] ? preempt_schedule+0x4b/0x60 [ 31.984932][ T1] preempt_schedule_common+0x4f/0xe0 [ 31.984932][ T1] preempt_schedule+0x4b/0x60 [ 31.984932][ T1] ___preempt_schedule+0x16/0x18 [ 31.984932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 31.984932][ T1] create_worker+0x3d4/0x570 [ 31.984932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 31.984932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.984932][ T1] ? find_next_bit+0x107/0x130 [ 31.984932][ T1] workqueue_init+0x690/0x71e [ 31.984932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 31.984932][ T1] ? rest_init+0x37b/0x37b [ 31.984932][ T1] kernel_init+0x12/0x1c5 [ 31.984932][ T1] ret_from_fork+0x24/0x30 [ 31.984963][ T8] mmdrop (____ptrval____) before 4 [ 31.994968][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.002800][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.004932][ T8] Call Trace: [ 32.004932][ T8] dump_stack+0x172/0x1f0 [ 32.004932][ T8] finish_task_switch+0x239/0x790 [ 32.004932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.004932][ T8] __schedule+0x7d3/0x1580 [ 32.004932][ T8] ? __sched_text_start+0x8/0x8 [ 32.004932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.004932][ T8] schedule+0xa8/0x260 [ 32.004932][ T8] kthread+0x27a/0x420 [ 32.004932][ T8] ? process_one_work+0x1790/0x1790 [ 32.004932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.004932][ T8] ret_from_fork+0x24/0x30 [ 32.004976][ T8] mmgrab (____ptrval____) to 4 [ 32.009890][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.014932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.014932][ T8] Call Trace: [ 32.014932][ T8] dump_stack+0x172/0x1f0 [ 32.014932][ T8] __schedule+0xd03/0x1580 [ 32.014932][ T8] ? __sched_text_start+0x8/0x8 [ 32.014932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.014932][ T8] schedule+0xa8/0x260 [ 32.014932][ T8] kthread+0x27a/0x420 [ 32.014932][ T8] ? process_one_work+0x1790/0x1790 [ 32.014932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.014932][ T8] ret_from_fork+0x24/0x30 [ 32.014965][ T1] mmdrop (____ptrval____) before 4 [ 32.020256][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.024932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.024932][ T1] Call Trace: [ 32.024932][ T1] dump_stack+0x172/0x1f0 [ 32.024932][ T1] finish_task_switch+0x239/0x790 [ 32.024932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.024932][ T1] __schedule+0x7d3/0x1580 [ 32.024932][ T1] ? __sched_text_start+0x8/0x8 [ 32.024932][ T1] ? create_worker+0x3d4/0x570 [ 32.024932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.024932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.024932][ T1] preempt_schedule+0x4b/0x60 [ 32.024932][ T1] ___preempt_schedule+0x16/0x18 [ 32.024932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.024932][ T1] create_worker+0x3d4/0x570 [ 32.024932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.024932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.024932][ T1] ? find_next_bit+0x107/0x130 [ 32.024932][ T1] workqueue_init+0x690/0x71e [ 32.024932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.024932][ T1] ? rest_init+0x37b/0x37b [ 32.024932][ T1] kernel_init+0x12/0x1c5 [ 32.024932][ T1] ret_from_fork+0x24/0x30 [ 32.024973][ T1] mmgrab (____ptrval____) to 4 [ 32.029740][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.034932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.034932][ T1] Call Trace: [ 32.034932][ T1] dump_stack+0x172/0x1f0 [ 32.034932][ T1] __schedule+0xd03/0x1580 [ 32.034932][ T1] ? __sched_text_start+0x8/0x8 [ 32.034932][ T1] ? create_worker+0x3d4/0x570 [ 32.034932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.034932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.034932][ T1] preempt_schedule+0x4b/0x60 [ 32.034932][ T1] ___preempt_schedule+0x16/0x18 [ 32.034932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.034932][ T1] create_worker+0x3d4/0x570 [ 32.034932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.034932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.034932][ T1] ? find_next_bit+0x107/0x130 [ 32.034932][ T1] workqueue_init+0x690/0x71e [ 32.034932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.034932][ T1] ? rest_init+0x37b/0x37b [ 32.034932][ T1] kernel_init+0x12/0x1c5 [ 32.034932][ T1] ret_from_fork+0x24/0x30 [ 32.034963][ T8] mmdrop (____ptrval____) before 4 [ 32.040172][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.044932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.044932][ T8] Call Trace: [ 32.044932][ T8] dump_stack+0x172/0x1f0 [ 32.044932][ T8] finish_task_switch+0x239/0x790 [ 32.044932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.044932][ T8] __schedule+0x7d3/0x1580 [ 32.044932][ T8] ? __sched_text_start+0x8/0x8 [ 32.044932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.044932][ T8] schedule+0xa8/0x260 [ 32.044932][ T8] kthread+0x27a/0x420 [ 32.044932][ T8] ? process_one_work+0x1790/0x1790 [ 32.044932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.044932][ T8] ret_from_fork+0x24/0x30 [ 32.044976][ T8] mmgrab (____ptrval____) to 4 [ 32.049827][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.054932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.054932][ T8] Call Trace: [ 32.054932][ T8] dump_stack+0x172/0x1f0 [ 32.054932][ T8] __schedule+0xd03/0x1580 [ 32.054932][ T8] ? __sched_text_start+0x8/0x8 [ 32.054932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.054932][ T8] schedule+0xa8/0x260 [ 32.054932][ T8] kthread+0x27a/0x420 [ 32.054932][ T8] ? process_one_work+0x1790/0x1790 [ 32.054932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.054932][ T8] ret_from_fork+0x24/0x30 [ 32.054963][ T1] mmdrop (____ptrval____) before 4 [ 32.060074][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.064932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.064932][ T1] Call Trace: [ 32.064932][ T1] dump_stack+0x172/0x1f0 [ 32.064932][ T1] finish_task_switch+0x239/0x790 [ 32.064932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.064932][ T1] __schedule+0x7d3/0x1580 [ 32.064932][ T1] ? __sched_text_start+0x8/0x8 [ 32.064932][ T1] ? create_worker+0x3d4/0x570 [ 32.064932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.064932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.064932][ T1] preempt_schedule+0x4b/0x60 [ 32.064932][ T1] ___preempt_schedule+0x16/0x18 [ 32.064932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.064932][ T1] create_worker+0x3d4/0x570 [ 32.064932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.064932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.064932][ T1] ? find_next_bit+0x107/0x130 [ 32.064932][ T1] workqueue_init+0x690/0x71e [ 32.064932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.064932][ T1] ? rest_init+0x37b/0x37b [ 32.064932][ T1] kernel_init+0x12/0x1c5 [ 32.064932][ T1] ret_from_fork+0x24/0x30 [ 32.064974][ T1] mmgrab (____ptrval____) to 4 [ 32.069801][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.074932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.074932][ T1] Call Trace: [ 32.074932][ T1] dump_stack+0x172/0x1f0 [ 32.074932][ T1] __schedule+0xd03/0x1580 [ 32.074932][ T1] ? __sched_text_start+0x8/0x8 [ 32.074932][ T1] ? create_worker+0x3d4/0x570 [ 32.074932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.074932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.074932][ T1] preempt_schedule+0x4b/0x60 [ 32.074932][ T1] ___preempt_schedule+0x16/0x18 [ 32.074932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.074932][ T1] create_worker+0x3d4/0x570 [ 32.074932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.074932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.074932][ T1] ? find_next_bit+0x107/0x130 [ 32.074932][ T1] workqueue_init+0x690/0x71e [ 32.074932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.074932][ T1] ? rest_init+0x37b/0x37b [ 32.074932][ T1] kernel_init+0x12/0x1c5 [ 32.074932][ T1] ret_from_fork+0x24/0x30 [ 32.074962][ T8] mmdrop (____ptrval____) before 4 [ 32.080099][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.084932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.084932][ T8] Call Trace: [ 32.084932][ T8] dump_stack+0x172/0x1f0 [ 32.084932][ T8] finish_task_switch+0x239/0x790 [ 32.084932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.084932][ T8] __schedule+0x7d3/0x1580 [ 32.084932][ T8] ? __sched_text_start+0x8/0x8 [ 32.084932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.084932][ T8] schedule+0xa8/0x260 [ 32.084932][ T8] kthread+0x27a/0x420 [ 32.084932][ T8] ? process_one_work+0x1790/0x1790 [ 32.084932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.084932][ T8] ret_from_fork+0x24/0x30 [ 32.084976][ T8] mmgrab (____ptrval____) to 4 [ 32.092916][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.094932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.094932][ T8] Call Trace: [ 32.094932][ T8] dump_stack+0x172/0x1f0 [ 32.094932][ T8] __schedule+0xd03/0x1580 [ 32.094932][ T8] ? __sched_text_start+0x8/0x8 [ 32.094932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.094932][ T8] schedule+0xa8/0x260 [ 32.094932][ T8] kthread+0x27a/0x420 [ 32.094932][ T8] ? process_one_work+0x1790/0x1790 [ 32.094932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.094932][ T8] ret_from_fork+0x24/0x30 [ 32.094963][ T1] mmdrop (____ptrval____) before 4 [ 32.104970][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.112164][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.114932][ T1] Call Trace: [ 32.114932][ T1] dump_stack+0x172/0x1f0 [ 32.114932][ T1] finish_task_switch+0x239/0x790 [ 32.114932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.114932][ T1] __schedule+0x7d3/0x1580 [ 32.114932][ T1] ? __sched_text_start+0x8/0x8 [ 32.114932][ T1] ? create_worker+0x3d4/0x570 [ 32.114932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.114932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.114932][ T1] preempt_schedule+0x4b/0x60 [ 32.114932][ T1] ___preempt_schedule+0x16/0x18 [ 32.114932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.114932][ T1] create_worker+0x3d4/0x570 [ 32.114932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.114932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.114932][ T1] ? find_next_bit+0x107/0x130 [ 32.114932][ T1] workqueue_init+0x690/0x71e [ 32.114932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.114932][ T1] ? rest_init+0x37b/0x37b [ 32.114932][ T1] kernel_init+0x12/0x1c5 [ 32.114932][ T1] ret_from_fork+0x24/0x30 [ 32.114974][ T1] mmgrab (____ptrval____) to 4 [ 32.119932][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.124932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.124932][ T1] Call Trace: [ 32.124932][ T1] dump_stack+0x172/0x1f0 [ 32.124932][ T1] __schedule+0xd03/0x1580 [ 32.124932][ T1] ? __sched_text_start+0x8/0x8 [ 32.124932][ T1] ? create_worker+0x3d4/0x570 [ 32.124932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.124932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.124932][ T1] preempt_schedule+0x4b/0x60 [ 32.124932][ T1] ___preempt_schedule+0x16/0x18 [ 32.124932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.124932][ T1] create_worker+0x3d4/0x570 [ 32.124932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.124932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.124932][ T1] ? find_next_bit+0x107/0x130 [ 32.124932][ T1] workqueue_init+0x690/0x71e [ 32.124932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.124932][ T1] ? rest_init+0x37b/0x37b [ 32.124932][ T1] kernel_init+0x12/0x1c5 [ 32.124932][ T1] ret_from_fork+0x24/0x30 [ 32.124966][ T8] mmdrop (____ptrval____) before 4 [ 32.130177][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.134932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.134932][ T8] Call Trace: [ 32.134932][ T8] dump_stack+0x172/0x1f0 [ 32.134932][ T8] finish_task_switch+0x239/0x790 [ 32.134932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.134932][ T8] __schedule+0x7d3/0x1580 [ 32.134932][ T8] ? __sched_text_start+0x8/0x8 [ 32.134932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.134932][ T8] schedule+0xa8/0x260 [ 32.134932][ T8] kthread+0x27a/0x420 [ 32.134932][ T8] ? process_one_work+0x1790/0x1790 [ 32.134932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.134932][ T8] ret_from_fork+0x24/0x30 [ 32.134984][ T8] mmgrab (____ptrval____) to 4 [ 32.139748][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.144932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.144932][ T8] Call Trace: [ 32.144932][ T8] dump_stack+0x172/0x1f0 [ 32.144932][ T8] __schedule+0xd03/0x1580 [ 32.144932][ T8] ? __sched_text_start+0x8/0x8 [ 32.144932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.144932][ T8] schedule+0xa8/0x260 [ 32.144932][ T8] kthread+0x27a/0x420 [ 32.144932][ T8] ? process_one_work+0x1790/0x1790 [ 32.144932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.144932][ T8] ret_from_fork+0x24/0x30 [ 32.144963][ T1] mmdrop (____ptrval____) before 4 [ 32.150083][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.154932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.154932][ T1] Call Trace: [ 32.154932][ T1] dump_stack+0x172/0x1f0 [ 32.154932][ T1] finish_task_switch+0x239/0x790 [ 32.154932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.154932][ T1] __schedule+0x7d3/0x1580 [ 32.154932][ T1] ? __sched_text_start+0x8/0x8 [ 32.154932][ T1] ? create_worker+0x3d4/0x570 [ 32.154932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.154932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.154932][ T1] preempt_schedule+0x4b/0x60 [ 32.154932][ T1] ___preempt_schedule+0x16/0x18 [ 32.154932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.154932][ T1] create_worker+0x3d4/0x570 [ 32.154932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.154932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.154932][ T1] ? find_next_bit+0x107/0x130 [ 32.154932][ T1] workqueue_init+0x690/0x71e [ 32.154932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.154932][ T1] ? rest_init+0x37b/0x37b [ 32.154932][ T1] kernel_init+0x12/0x1c5 [ 32.154932][ T1] ret_from_fork+0x24/0x30 [ 32.154976][ T1] mmgrab (____ptrval____) to 4 [ 32.159908][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.164932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.164932][ T1] Call Trace: [ 32.164932][ T1] dump_stack+0x172/0x1f0 [ 32.164932][ T1] __schedule+0xd03/0x1580 [ 32.164932][ T1] ? __sched_text_start+0x8/0x8 [ 32.164932][ T1] ? create_worker+0x3d4/0x570 [ 32.164932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.164932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.164932][ T1] preempt_schedule+0x4b/0x60 [ 32.164932][ T1] ___preempt_schedule+0x16/0x18 [ 32.164932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.164932][ T1] create_worker+0x3d4/0x570 [ 32.164932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.164932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.164932][ T1] ? find_next_bit+0x107/0x130 [ 32.164932][ T1] workqueue_init+0x690/0x71e [ 32.164932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.164932][ T1] ? rest_init+0x37b/0x37b [ 32.164932][ T1] kernel_init+0x12/0x1c5 [ 32.164932][ T1] ret_from_fork+0x24/0x30 [ 32.164965][ T8] mmdrop (____ptrval____) before 4 [ 32.170090][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.174932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.174932][ T8] Call Trace: [ 32.174932][ T8] dump_stack+0x172/0x1f0 [ 32.174932][ T8] finish_task_switch+0x239/0x790 [ 32.174932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.174932][ T8] __schedule+0x7d3/0x1580 [ 32.174932][ T8] ? __sched_text_start+0x8/0x8 [ 32.174932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.174932][ T8] schedule+0xa8/0x260 [ 32.174932][ T8] kthread+0x27a/0x420 [ 32.174932][ T8] ? process_one_work+0x1790/0x1790 [ 32.174932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.174932][ T8] ret_from_fork+0x24/0x30 [ 32.174972][ T8] mmgrab (____ptrval____) to 4 [ 32.179788][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.184932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.184932][ T8] Call Trace: [ 32.184932][ T8] dump_stack+0x172/0x1f0 [ 32.184932][ T8] __schedule+0xd03/0x1580 [ 32.184932][ T8] ? __sched_text_start+0x8/0x8 [ 32.184932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.184932][ T8] schedule+0xa8/0x260 [ 32.184932][ T8] kthread+0x27a/0x420 [ 32.184932][ T8] ? process_one_work+0x1790/0x1790 [ 32.184932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.184932][ T8] ret_from_fork+0x24/0x30 [ 32.184964][ T1] mmdrop (____ptrval____) before 4 [ 32.190089][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.194932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.194932][ T1] Call Trace: [ 32.194932][ T1] dump_stack+0x172/0x1f0 [ 32.194932][ T1] finish_task_switch+0x239/0x790 [ 32.194932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.194932][ T1] __schedule+0x7d3/0x1580 [ 32.194932][ T1] ? __sched_text_start+0x8/0x8 [ 32.194932][ T1] ? create_worker+0x3d4/0x570 [ 32.194932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.194932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.194932][ T1] preempt_schedule+0x4b/0x60 [ 32.194932][ T1] ___preempt_schedule+0x16/0x18 [ 32.194932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.194932][ T1] create_worker+0x3d4/0x570 [ 32.194932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.194932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.194932][ T1] ? find_next_bit+0x107/0x130 [ 32.194932][ T1] workqueue_init+0x690/0x71e [ 32.194932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.194932][ T1] ? rest_init+0x37b/0x37b [ 32.194932][ T1] kernel_init+0x12/0x1c5 [ 32.194932][ T1] ret_from_fork+0x24/0x30 [ 32.194975][ T1] mmgrab (____ptrval____) to 4 [ 32.199853][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.204932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.204932][ T1] Call Trace: [ 32.204932][ T1] dump_stack+0x172/0x1f0 [ 32.204932][ T1] __schedule+0xd03/0x1580 [ 32.204932][ T1] ? __sched_text_start+0x8/0x8 [ 32.204932][ T1] ? create_worker+0x3d4/0x570 [ 32.204932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.204932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.204932][ T1] preempt_schedule+0x4b/0x60 [ 32.204932][ T1] ___preempt_schedule+0x16/0x18 [ 32.204932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.204932][ T1] create_worker+0x3d4/0x570 [ 32.204932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.204932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.204932][ T1] ? find_next_bit+0x107/0x130 [ 32.204932][ T1] workqueue_init+0x690/0x71e [ 32.204932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.204932][ T1] ? rest_init+0x37b/0x37b [ 32.204932][ T1] kernel_init+0x12/0x1c5 [ 32.204932][ T1] ret_from_fork+0x24/0x30 [ 32.204963][ T8] mmdrop (____ptrval____) before 4 [ 32.214975][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.222440][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.224932][ T8] Call Trace: [ 32.224932][ T8] dump_stack+0x172/0x1f0 [ 32.224932][ T8] finish_task_switch+0x239/0x790 [ 32.224932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.224932][ T8] __schedule+0x7d3/0x1580 [ 32.224932][ T8] ? __sched_text_start+0x8/0x8 [ 32.224932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.224932][ T8] schedule+0xa8/0x260 [ 32.224932][ T8] kthread+0x27a/0x420 [ 32.224932][ T8] ? process_one_work+0x1790/0x1790 [ 32.224932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.224932][ T8] ret_from_fork+0x24/0x30 [ 32.224977][ T8] mmgrab (____ptrval____) to 4 [ 32.230286][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.234932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.234932][ T8] Call Trace: [ 32.234932][ T8] dump_stack+0x172/0x1f0 [ 32.234932][ T8] __schedule+0xd03/0x1580 [ 32.234932][ T8] ? __sched_text_start+0x8/0x8 [ 32.234932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.234932][ T8] schedule+0xa8/0x260 [ 32.234932][ T8] kthread+0x27a/0x420 [ 32.234932][ T8] ? process_one_work+0x1790/0x1790 [ 32.234932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.234932][ T8] ret_from_fork+0x24/0x30 [ 32.234963][ T1] mmdrop (____ptrval____) before 4 [ 32.240122][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.244932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.244932][ T1] Call Trace: [ 32.244932][ T1] dump_stack+0x172/0x1f0 [ 32.244932][ T1] finish_task_switch+0x239/0x790 [ 32.244932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.244932][ T1] __schedule+0x7d3/0x1580 [ 32.244932][ T1] ? __sched_text_start+0x8/0x8 [ 32.244932][ T1] ? create_worker+0x3d4/0x570 [ 32.244932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.244932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.244932][ T1] preempt_schedule+0x4b/0x60 [ 32.244932][ T1] ___preempt_schedule+0x16/0x18 [ 32.244932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.244932][ T1] create_worker+0x3d4/0x570 [ 32.244932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.244932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.244932][ T1] ? find_next_bit+0x107/0x130 [ 32.244932][ T1] workqueue_init+0x690/0x71e [ 32.244932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.244932][ T1] ? rest_init+0x37b/0x37b [ 32.244932][ T1] kernel_init+0x12/0x1c5 [ 32.244932][ T1] ret_from_fork+0x24/0x30 [ 32.244992][ T1] mmgrab (____ptrval____) to 4 [ 32.250033][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.254932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.254932][ T1] Call Trace: [ 32.254932][ T1] dump_stack+0x172/0x1f0 [ 32.254932][ T1] __schedule+0xd03/0x1580 [ 32.254932][ T1] ? __sched_text_start+0x8/0x8 [ 32.254932][ T1] ? create_worker+0x3d4/0x570 [ 32.254932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.254932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.254932][ T1] preempt_schedule+0x4b/0x60 [ 32.254932][ T1] ___preempt_schedule+0x16/0x18 [ 32.254932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.254932][ T1] create_worker+0x3d4/0x570 [ 32.254932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.254932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.254932][ T1] ? find_next_bit+0x107/0x130 [ 32.254932][ T1] workqueue_init+0x690/0x71e [ 32.254932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.254932][ T1] ? rest_init+0x37b/0x37b [ 32.254932][ T1] kernel_init+0x12/0x1c5 [ 32.254932][ T1] ret_from_fork+0x24/0x30 [ 32.254963][ T8] mmdrop (____ptrval____) before 4 [ 32.264968][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.273733][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.274932][ T8] Call Trace: [ 32.274932][ T8] dump_stack+0x172/0x1f0 [ 32.274932][ T8] finish_task_switch+0x239/0x790 [ 32.274932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.274932][ T8] __schedule+0x7d3/0x1580 [ 32.274932][ T8] ? __sched_text_start+0x8/0x8 [ 32.274932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.274932][ T8] schedule+0xa8/0x260 [ 32.274932][ T8] kthread+0x27a/0x420 [ 32.274932][ T8] ? process_one_work+0x1790/0x1790 [ 32.274932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.274932][ T8] ret_from_fork+0x24/0x30 [ 32.274977][ T8] mmgrab (____ptrval____) to 4 [ 32.279789][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.284932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.284932][ T8] Call Trace: [ 32.284932][ T8] dump_stack+0x172/0x1f0 [ 32.284932][ T8] __schedule+0xd03/0x1580 [ 32.284932][ T8] ? __sched_text_start+0x8/0x8 [ 32.284932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.284932][ T8] schedule+0xa8/0x260 [ 32.284932][ T8] kthread+0x27a/0x420 [ 32.284932][ T8] ? process_one_work+0x1790/0x1790 [ 32.284932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.284932][ T8] ret_from_fork+0x24/0x30 [ 32.284965][ T1] mmdrop (____ptrval____) before 4 [ 32.290084][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.294932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.294932][ T1] Call Trace: [ 32.294932][ T1] dump_stack+0x172/0x1f0 [ 32.294932][ T1] finish_task_switch+0x239/0x790 [ 32.294932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.294932][ T1] __schedule+0x7d3/0x1580 [ 32.294932][ T1] ? __sched_text_start+0x8/0x8 [ 32.294932][ T1] ? create_worker+0x3d4/0x570 [ 32.294932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.294932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.294932][ T1] preempt_schedule+0x4b/0x60 [ 32.294932][ T1] ___preempt_schedule+0x16/0x18 [ 32.294932][ T1] _raw_spin_unlock_irq+0x74/0x90 [ 32.294932][ T1] create_worker+0x3d4/0x570 [ 32.294932][ T1] ? init_rescuer.part.0+0x190/0x190 [ 32.294932][ T1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.294932][ T1] ? find_next_bit+0x107/0x130 [ 32.294932][ T1] workqueue_init+0x690/0x71e [ 32.294932][ T1] kernel_init_freeable+0x2c0/0x5c3 [ 32.294932][ T1] ? rest_init+0x37b/0x37b [ 32.294932][ T1] kernel_init+0x12/0x1c5 [ 32.294932][ T1] ret_from_fork+0x24/0x30 [ 32.295304][ T1] mmgrab (____ptrval____) to 4 [ 32.300196][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.304932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.304932][ T1] Call Trace: [ 32.304932][ T1] dump_stack+0x172/0x1f0 [ 32.304932][ T1] __schedule+0xd03/0x1580 [ 32.304932][ T1] ? __sched_text_start+0x8/0x8 [ 32.304932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.304932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.304932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.304932][ T1] preempt_schedule+0x4b/0x60 [ 32.304932][ T1] ___preempt_schedule+0x16/0x18 [ 32.304932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.304932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.304932][ T1] link_pwq+0x151/0x2a0 [ 32.304932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.304932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.304932][ T1] ? cpumask_next+0x41/0x50 [ 32.304932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.304932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.304932][ T1] init_mm_internals+0x24/0x3c9 [ 32.304932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.304932][ T1] ? rest_init+0x37b/0x37b [ 32.304932][ T1] kernel_init+0x12/0x1c5 [ 32.304932][ T1] ret_from_fork+0x24/0x30 [ 32.304962][ T7] mmdrop (____ptrval____) before 4 [ 32.310197][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.314932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.314932][ T7] Workqueue: 0x0 (events) [ 32.314932][ T7] Call Trace: [ 32.314932][ T7] dump_stack+0x172/0x1f0 [ 32.314932][ T7] finish_task_switch+0x239/0x790 [ 32.314932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.314932][ T7] __schedule+0x7d3/0x1580 [ 32.314932][ T7] ? __sched_text_start+0x8/0x8 [ 32.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.314932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.314932][ T7] ? kthread_data+0x58/0xc0 [ 32.314932][ T7] schedule+0xa8/0x260 [ 32.314932][ T7] worker_thread+0x248/0xe40 [ 32.314932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.314932][ T7] kthread+0x354/0x420 [ 32.314932][ T7] ? process_one_work+0x1790/0x1790 [ 32.314932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.314932][ T7] ret_from_fork+0x24/0x30 [ 32.314976][ T7] mmgrab (____ptrval____) to 4 [ 32.319921][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.324932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.324932][ T7] Workqueue: 0x0 (events) [ 32.324932][ T7] Call Trace: [ 32.324932][ T7] dump_stack+0x172/0x1f0 [ 32.324932][ T7] __schedule+0xd03/0x1580 [ 32.324932][ T7] ? __sched_text_start+0x8/0x8 [ 32.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.324932][ T7] ? kthread_data+0x58/0xc0 [ 32.324932][ T7] schedule+0xa8/0x260 [ 32.324932][ T7] worker_thread+0x248/0xe40 [ 32.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.324932][ T7] kthread+0x354/0x420 [ 32.324932][ T7] ? process_one_work+0x1790/0x1790 [ 32.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.324932][ T7] ret_from_fork+0x24/0x30 [ 32.324969][ T1] mmdrop (____ptrval____) before 4 [ 32.334998][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.342268][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.344932][ T1] Call Trace: [ 32.344932][ T1] dump_stack+0x172/0x1f0 [ 32.344932][ T1] finish_task_switch+0x239/0x790 [ 32.344932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.344932][ T1] __schedule+0x7d3/0x1580 [ 32.344932][ T1] ? __sched_text_start+0x8/0x8 [ 32.344932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.344932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.344932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.344932][ T1] preempt_schedule+0x4b/0x60 [ 32.344932][ T1] ___preempt_schedule+0x16/0x18 [ 32.344932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.344932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.344932][ T1] link_pwq+0x151/0x2a0 [ 32.344932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.344932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.344932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.344932][ T1] ? cpumask_next+0x41/0x50 [ 32.344932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.344932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.344932][ T1] init_mm_internals+0x24/0x3c9 [ 32.344932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.344932][ T1] ? rest_init+0x37b/0x37b [ 32.344932][ T1] kernel_init+0x12/0x1c5 [ 32.344932][ T1] ret_from_fork+0x24/0x30 [ 32.344975][ T1] mmgrab (____ptrval____) to 4 [ 32.349740][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.354932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.354932][ T1] Call Trace: [ 32.354932][ T1] dump_stack+0x172/0x1f0 [ 32.354932][ T1] __schedule+0xd03/0x1580 [ 32.354932][ T1] ? __sched_text_start+0x8/0x8 [ 32.354932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.354932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.354932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.354932][ T1] preempt_schedule+0x4b/0x60 [ 32.354932][ T1] ___preempt_schedule+0x16/0x18 [ 32.354932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.354932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.354932][ T1] link_pwq+0x151/0x2a0 [ 32.354932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.354932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.354932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.354932][ T1] ? cpumask_next+0x41/0x50 [ 32.354932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.354932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.354932][ T1] init_mm_internals+0x24/0x3c9 [ 32.354932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.354932][ T1] ? rest_init+0x37b/0x37b [ 32.354932][ T1] kernel_init+0x12/0x1c5 [ 32.354932][ T1] ret_from_fork+0x24/0x30 [ 32.354961][ T8] mmdrop (____ptrval____) before 4 [ 32.364965][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.372451][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.374932][ T8] Call Trace: [ 32.374932][ T8] dump_stack+0x172/0x1f0 [ 32.374932][ T8] finish_task_switch+0x239/0x790 [ 32.374932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.374932][ T8] __schedule+0x7d3/0x1580 [ 32.374932][ T8] ? __sched_text_start+0x8/0x8 [ 32.374932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.374932][ T8] schedule+0xa8/0x260 [ 32.374932][ T8] kthread+0x27a/0x420 [ 32.374932][ T8] ? process_one_work+0x1790/0x1790 [ 32.374932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.374932][ T8] ret_from_fork+0x24/0x30 [ 32.374976][ T8] mmgrab (____ptrval____) to 4 [ 32.379823][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.384932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.384932][ T8] Call Trace: [ 32.384932][ T8] dump_stack+0x172/0x1f0 [ 32.384932][ T8] __schedule+0xd03/0x1580 [ 32.384932][ T8] ? __sched_text_start+0x8/0x8 [ 32.384932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.384932][ T8] schedule+0xa8/0x260 [ 32.384932][ T8] kthread+0x27a/0x420 [ 32.384932][ T8] ? process_one_work+0x1790/0x1790 [ 32.384932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.384932][ T8] ret_from_fork+0x24/0x30 [ 32.384962][ T7] mmdrop (____ptrval____) before 4 [ 32.390160][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.394932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.394932][ T7] Workqueue: 0x0 (events) [ 32.394932][ T7] Call Trace: [ 32.394932][ T7] dump_stack+0x172/0x1f0 [ 32.394932][ T7] finish_task_switch+0x239/0x790 [ 32.394932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.394932][ T7] __schedule+0x7d3/0x1580 [ 32.394932][ T7] ? __sched_text_start+0x8/0x8 [ 32.394932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.394932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.394932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.394932][ T7] ? kthread_data+0x58/0xc0 [ 32.394932][ T7] schedule+0xa8/0x260 [ 32.394932][ T7] worker_thread+0x248/0xe40 [ 32.394932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.394932][ T7] kthread+0x354/0x420 [ 32.394932][ T7] ? process_one_work+0x1790/0x1790 [ 32.394932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.394932][ T7] ret_from_fork+0x24/0x30 [ 32.394976][ T7] mmgrab (____ptrval____) to 4 [ 32.399744][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.404932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.404932][ T7] Workqueue: 0x0 (events) [ 32.404932][ T7] Call Trace: [ 32.404932][ T7] dump_stack+0x172/0x1f0 [ 32.404932][ T7] __schedule+0xd03/0x1580 [ 32.404932][ T7] ? __sched_text_start+0x8/0x8 [ 32.404932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.404932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.404932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.404932][ T7] ? kthread_data+0x58/0xc0 [ 32.404932][ T7] schedule+0xa8/0x260 [ 32.404932][ T7] worker_thread+0x248/0xe40 [ 32.404932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.404932][ T7] kthread+0x354/0x420 [ 32.404932][ T7] ? process_one_work+0x1790/0x1790 [ 32.404932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.404932][ T7] ret_from_fork+0x24/0x30 [ 32.404961][ T1] mmdrop (____ptrval____) before 4 [ 32.410176][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.414932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.414932][ T1] Call Trace: [ 32.414932][ T1] dump_stack+0x172/0x1f0 [ 32.414932][ T1] finish_task_switch+0x239/0x790 [ 32.414932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.414932][ T1] __schedule+0x7d3/0x1580 [ 32.414932][ T1] ? __sched_text_start+0x8/0x8 [ 32.414932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.414932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.414932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.414932][ T1] preempt_schedule+0x4b/0x60 [ 32.414932][ T1] ___preempt_schedule+0x16/0x18 [ 32.414932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.414932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.414932][ T1] link_pwq+0x151/0x2a0 [ 32.414932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.414932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.414932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.414932][ T1] ? cpumask_next+0x41/0x50 [ 32.414932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.414932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.414932][ T1] init_mm_internals+0x24/0x3c9 [ 32.414932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.414932][ T1] ? rest_init+0x37b/0x37b [ 32.414932][ T1] kernel_init+0x12/0x1c5 [ 32.414932][ T1] ret_from_fork+0x24/0x30 [ 32.414975][ T1] mmgrab (____ptrval____) to 4 [ 32.419835][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.424932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.424932][ T1] Call Trace: [ 32.424932][ T1] dump_stack+0x172/0x1f0 [ 32.424932][ T1] __schedule+0xd03/0x1580 [ 32.424932][ T1] ? __sched_text_start+0x8/0x8 [ 32.424932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.424932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.424932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.424932][ T1] preempt_schedule+0x4b/0x60 [ 32.424932][ T1] ___preempt_schedule+0x16/0x18 [ 32.424932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.424932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.424932][ T1] link_pwq+0x151/0x2a0 [ 32.424932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.424932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.424932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.424932][ T1] ? cpumask_next+0x41/0x50 [ 32.424932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.424932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.424932][ T1] init_mm_internals+0x24/0x3c9 [ 32.424932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.424932][ T1] ? rest_init+0x37b/0x37b [ 32.424932][ T1] kernel_init+0x12/0x1c5 [ 32.424932][ T1] ret_from_fork+0x24/0x30 [ 32.424962][ T8] mmdrop (____ptrval____) before 4 [ 32.434964][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.442725][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.444932][ T8] Call Trace: [ 32.444932][ T8] dump_stack+0x172/0x1f0 [ 32.444932][ T8] finish_task_switch+0x239/0x790 [ 32.444932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.444932][ T8] __schedule+0x7d3/0x1580 [ 32.444932][ T8] ? __sched_text_start+0x8/0x8 [ 32.444932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.444932][ T8] schedule+0xa8/0x260 [ 32.444932][ T8] kthread+0x27a/0x420 [ 32.444932][ T8] ? process_one_work+0x1790/0x1790 [ 32.444932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.444932][ T8] ret_from_fork+0x24/0x30 [ 32.444974][ T8] mmgrab (____ptrval____) to 4 [ 32.450125][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.454932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.454932][ T8] Call Trace: [ 32.454932][ T8] dump_stack+0x172/0x1f0 [ 32.454932][ T8] __schedule+0xd03/0x1580 [ 32.454932][ T8] ? __sched_text_start+0x8/0x8 [ 32.454932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.454932][ T8] schedule+0xa8/0x260 [ 32.454932][ T8] kthread+0x27a/0x420 [ 32.454932][ T8] ? process_one_work+0x1790/0x1790 [ 32.454932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.454932][ T8] ret_from_fork+0x24/0x30 [ 32.454963][ T7] mmdrop (____ptrval____) before 4 [ 32.464961][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.472235][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.474932][ T7] Workqueue: 0x0 (events) [ 32.474932][ T7] Call Trace: [ 32.474932][ T7] dump_stack+0x172/0x1f0 [ 32.474932][ T7] finish_task_switch+0x239/0x790 [ 32.474932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.474932][ T7] __schedule+0x7d3/0x1580 [ 32.474932][ T7] ? __sched_text_start+0x8/0x8 [ 32.474932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.474932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.474932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.474932][ T7] ? kthread_data+0x58/0xc0 [ 32.474932][ T7] schedule+0xa8/0x260 [ 32.474932][ T7] worker_thread+0x248/0xe40 [ 32.474932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.474932][ T7] kthread+0x354/0x420 [ 32.474932][ T7] ? process_one_work+0x1790/0x1790 [ 32.474932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.474932][ T7] ret_from_fork+0x24/0x30 [ 32.474976][ T7] mmgrab (____ptrval____) to 4 [ 32.479738][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.484932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.484932][ T7] Workqueue: 0x0 (events) [ 32.484932][ T7] Call Trace: [ 32.484932][ T7] dump_stack+0x172/0x1f0 [ 32.484932][ T7] __schedule+0xd03/0x1580 [ 32.484932][ T7] ? __sched_text_start+0x8/0x8 [ 32.484932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.484932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.484932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.484932][ T7] ? kthread_data+0x58/0xc0 [ 32.484932][ T7] schedule+0xa8/0x260 [ 32.484932][ T7] worker_thread+0x248/0xe40 [ 32.484932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.484932][ T7] kthread+0x354/0x420 [ 32.484932][ T7] ? process_one_work+0x1790/0x1790 [ 32.484932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.484932][ T7] ret_from_fork+0x24/0x30 [ 32.484963][ T1] mmdrop (____ptrval____) before 4 [ 32.494962][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.502177][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.504932][ T1] Call Trace: [ 32.504932][ T1] dump_stack+0x172/0x1f0 [ 32.504932][ T1] finish_task_switch+0x239/0x790 [ 32.504932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.504932][ T1] __schedule+0x7d3/0x1580 [ 32.504932][ T1] ? __sched_text_start+0x8/0x8 [ 32.504932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.504932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.504932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.504932][ T1] preempt_schedule+0x4b/0x60 [ 32.504932][ T1] ___preempt_schedule+0x16/0x18 [ 32.504932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.504932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.504932][ T1] link_pwq+0x151/0x2a0 [ 32.504932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.504932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.504932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.504932][ T1] ? cpumask_next+0x41/0x50 [ 32.504932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.504932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.504932][ T1] init_mm_internals+0x24/0x3c9 [ 32.504932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.504932][ T1] ? rest_init+0x37b/0x37b [ 32.504932][ T1] kernel_init+0x12/0x1c5 [ 32.504932][ T1] ret_from_fork+0x24/0x30 [ 32.504980][ T1] mmgrab (____ptrval____) to 4 [ 32.509847][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.514932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.514932][ T1] Call Trace: [ 32.514932][ T1] dump_stack+0x172/0x1f0 [ 32.514932][ T1] __schedule+0xd03/0x1580 [ 32.514932][ T1] ? __sched_text_start+0x8/0x8 [ 32.514932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.514932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.514932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.514932][ T1] preempt_schedule+0x4b/0x60 [ 32.514932][ T1] ___preempt_schedule+0x16/0x18 [ 32.514932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.514932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.514932][ T1] link_pwq+0x151/0x2a0 [ 32.514932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.514932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.514932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.514932][ T1] ? cpumask_next+0x41/0x50 [ 32.514932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.514932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.514932][ T1] init_mm_internals+0x24/0x3c9 [ 32.514932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.514932][ T1] ? rest_init+0x37b/0x37b [ 32.514932][ T1] kernel_init+0x12/0x1c5 [ 32.514932][ T1] ret_from_fork+0x24/0x30 [ 32.514967][ T8] mmdrop (____ptrval____) before 4 [ 32.520155][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.524932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.524932][ T8] Call Trace: [ 32.524932][ T8] dump_stack+0x172/0x1f0 [ 32.524932][ T8] finish_task_switch+0x239/0x790 [ 32.524932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.524932][ T8] __schedule+0x7d3/0x1580 [ 32.524932][ T8] ? __sched_text_start+0x8/0x8 [ 32.524932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.524932][ T8] schedule+0xa8/0x260 [ 32.524932][ T8] kthread+0x27a/0x420 [ 32.524932][ T8] ? process_one_work+0x1790/0x1790 [ 32.524932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.524932][ T8] ret_from_fork+0x24/0x30 [ 32.524976][ T8] mmgrab (____ptrval____) to 4 [ 32.529743][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.534932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.534932][ T8] Call Trace: [ 32.534932][ T8] dump_stack+0x172/0x1f0 [ 32.534932][ T8] __schedule+0xd03/0x1580 [ 32.534932][ T8] ? __sched_text_start+0x8/0x8 [ 32.534932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.534932][ T8] schedule+0xa8/0x260 [ 32.534932][ T8] kthread+0x27a/0x420 [ 32.534932][ T8] ? process_one_work+0x1790/0x1790 [ 32.534932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.534932][ T8] ret_from_fork+0x24/0x30 [ 32.534966][ T7] mmdrop (____ptrval____) before 4 [ 32.544973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.553071][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.554932][ T7] Workqueue: 0x0 (events) [ 32.554932][ T7] Call Trace: [ 32.554932][ T7] dump_stack+0x172/0x1f0 [ 32.554932][ T7] finish_task_switch+0x239/0x790 [ 32.554932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.554932][ T7] __schedule+0x7d3/0x1580 [ 32.554932][ T7] ? __sched_text_start+0x8/0x8 [ 32.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.554932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.554932][ T7] ? kthread_data+0x58/0xc0 [ 32.554932][ T7] schedule+0xa8/0x260 [ 32.554932][ T7] worker_thread+0x248/0xe40 [ 32.554932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.554932][ T7] kthread+0x354/0x420 [ 32.554932][ T7] ? process_one_work+0x1790/0x1790 [ 32.554932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.554932][ T7] ret_from_fork+0x24/0x30 [ 32.554976][ T7] mmgrab (____ptrval____) to 4 [ 32.560000][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.564932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.564932][ T7] Workqueue: 0x0 (events) [ 32.564932][ T7] Call Trace: [ 32.564932][ T7] dump_stack+0x172/0x1f0 [ 32.564932][ T7] __schedule+0xd03/0x1580 [ 32.564932][ T7] ? __sched_text_start+0x8/0x8 [ 32.564932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.564932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.564932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.564932][ T7] ? kthread_data+0x58/0xc0 [ 32.564932][ T7] schedule+0xa8/0x260 [ 32.564932][ T7] worker_thread+0x248/0xe40 [ 32.564932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.564932][ T7] kthread+0x354/0x420 [ 32.564932][ T7] ? process_one_work+0x1790/0x1790 [ 32.564932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.564932][ T7] ret_from_fork+0x24/0x30 [ 32.564962][ T1] mmdrop (____ptrval____) before 4 [ 32.574968][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.582551][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.584932][ T1] Call Trace: [ 32.584932][ T1] dump_stack+0x172/0x1f0 [ 32.584932][ T1] finish_task_switch+0x239/0x790 [ 32.584932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.584932][ T1] __schedule+0x7d3/0x1580 [ 32.584932][ T1] ? __sched_text_start+0x8/0x8 [ 32.584932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.584932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.584932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.584932][ T1] preempt_schedule+0x4b/0x60 [ 32.584932][ T1] ___preempt_schedule+0x16/0x18 [ 32.584932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.584932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.584932][ T1] link_pwq+0x151/0x2a0 [ 32.584932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.584932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.584932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.584932][ T1] ? cpumask_next+0x41/0x50 [ 32.584932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.584932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.584932][ T1] init_mm_internals+0x24/0x3c9 [ 32.584932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.584932][ T1] ? rest_init+0x37b/0x37b [ 32.584932][ T1] kernel_init+0x12/0x1c5 [ 32.584932][ T1] ret_from_fork+0x24/0x30 [ 32.584974][ T1] mmgrab (____ptrval____) to 4 [ 32.590201][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.594932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.594932][ T1] Call Trace: [ 32.594932][ T1] dump_stack+0x172/0x1f0 [ 32.594932][ T1] __schedule+0xd03/0x1580 [ 32.594932][ T1] ? __sched_text_start+0x8/0x8 [ 32.594932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.594932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.594932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.594932][ T1] preempt_schedule+0x4b/0x60 [ 32.594932][ T1] ___preempt_schedule+0x16/0x18 [ 32.594932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.594932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.594932][ T1] link_pwq+0x151/0x2a0 [ 32.594932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.594932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.594932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.594932][ T1] ? cpumask_next+0x41/0x50 [ 32.594932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.594932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.594932][ T1] init_mm_internals+0x24/0x3c9 [ 32.594932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.594932][ T1] ? rest_init+0x37b/0x37b [ 32.594932][ T1] kernel_init+0x12/0x1c5 [ 32.594932][ T1] ret_from_fork+0x24/0x30 [ 32.594965][ T8] mmdrop (____ptrval____) before 4 [ 32.604970][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.612350][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.614932][ T8] Call Trace: [ 32.614932][ T8] dump_stack+0x172/0x1f0 [ 32.614932][ T8] finish_task_switch+0x239/0x790 [ 32.614932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.614932][ T8] __schedule+0x7d3/0x1580 [ 32.614932][ T8] ? __sched_text_start+0x8/0x8 [ 32.614932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.614932][ T8] schedule+0xa8/0x260 [ 32.614932][ T8] kthread+0x27a/0x420 [ 32.614932][ T8] ? process_one_work+0x1790/0x1790 [ 32.614932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.614932][ T8] ret_from_fork+0x24/0x30 [ 32.614973][ T8] mmgrab (____ptrval____) to 4 [ 32.619871][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.624932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.624932][ T8] Call Trace: [ 32.624932][ T8] dump_stack+0x172/0x1f0 [ 32.624932][ T8] __schedule+0xd03/0x1580 [ 32.624932][ T8] ? __sched_text_start+0x8/0x8 [ 32.624932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.624932][ T8] schedule+0xa8/0x260 [ 32.624932][ T8] kthread+0x27a/0x420 [ 32.624932][ T8] ? process_one_work+0x1790/0x1790 [ 32.624932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.624932][ T8] ret_from_fork+0x24/0x30 [ 32.624964][ T7] mmdrop (____ptrval____) before 4 [ 32.634969][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.642331][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.644932][ T7] Workqueue: 0x0 (events) [ 32.644932][ T7] Call Trace: [ 32.644932][ T7] dump_stack+0x172/0x1f0 [ 32.644932][ T7] finish_task_switch+0x239/0x790 [ 32.644932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.644932][ T7] __schedule+0x7d3/0x1580 [ 32.644932][ T7] ? __sched_text_start+0x8/0x8 [ 32.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.644932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.644932][ T7] ? kthread_data+0x58/0xc0 [ 32.644932][ T7] schedule+0xa8/0x260 [ 32.644932][ T7] worker_thread+0x248/0xe40 [ 32.644932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.644932][ T7] kthread+0x354/0x420 [ 32.644932][ T7] ? process_one_work+0x1790/0x1790 [ 32.644932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.644932][ T7] ret_from_fork+0x24/0x30 [ 32.644981][ T7] mmgrab (____ptrval____) to 4 [ 32.649821][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.654932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.654932][ T7] Workqueue: 0x0 (events) [ 32.654932][ T7] Call Trace: [ 32.654932][ T7] dump_stack+0x172/0x1f0 [ 32.654932][ T7] __schedule+0xd03/0x1580 [ 32.654932][ T7] ? __sched_text_start+0x8/0x8 [ 32.654932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.654932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.654932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.654932][ T7] ? kthread_data+0x58/0xc0 [ 32.654932][ T7] schedule+0xa8/0x260 [ 32.654932][ T7] worker_thread+0x248/0xe40 [ 32.654932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.654932][ T7] kthread+0x354/0x420 [ 32.654932][ T7] ? process_one_work+0x1790/0x1790 [ 32.654932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.654932][ T7] ret_from_fork+0x24/0x30 [ 32.654963][ T1] mmdrop (____ptrval____) before 4 [ 32.664964][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.672196][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.674932][ T1] Call Trace: [ 32.674932][ T1] dump_stack+0x172/0x1f0 [ 32.674932][ T1] finish_task_switch+0x239/0x790 [ 32.674932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.674932][ T1] __schedule+0x7d3/0x1580 [ 32.674932][ T1] ? __sched_text_start+0x8/0x8 [ 32.674932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.674932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.674932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.674932][ T1] preempt_schedule+0x4b/0x60 [ 32.674932][ T1] ___preempt_schedule+0x16/0x18 [ 32.674932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.674932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.674932][ T1] link_pwq+0x151/0x2a0 [ 32.674932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.674932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.674932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.674932][ T1] ? cpumask_next+0x41/0x50 [ 32.674932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.674932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.674932][ T1] init_mm_internals+0x24/0x3c9 [ 32.674932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.674932][ T1] ? rest_init+0x37b/0x37b [ 32.674932][ T1] kernel_init+0x12/0x1c5 [ 32.674932][ T1] ret_from_fork+0x24/0x30 [ 32.674977][ T1] mmgrab (____ptrval____) to 4 [ 32.680139][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.684932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.684932][ T1] Call Trace: [ 32.684932][ T1] dump_stack+0x172/0x1f0 [ 32.684932][ T1] __schedule+0xd03/0x1580 [ 32.684932][ T1] ? __sched_text_start+0x8/0x8 [ 32.684932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.684932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.684932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.684932][ T1] preempt_schedule+0x4b/0x60 [ 32.684932][ T1] ___preempt_schedule+0x16/0x18 [ 32.684932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.684932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.684932][ T1] link_pwq+0x151/0x2a0 [ 32.684932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.684932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.684932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.684932][ T1] ? cpumask_next+0x41/0x50 [ 32.684932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.684932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.684932][ T1] init_mm_internals+0x24/0x3c9 [ 32.684932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.684932][ T1] ? rest_init+0x37b/0x37b [ 32.684932][ T1] kernel_init+0x12/0x1c5 [ 32.684932][ T1] ret_from_fork+0x24/0x30 [ 32.684963][ T8] mmdrop (____ptrval____) before 4 [ 32.694971][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.702608][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.704932][ T8] Call Trace: [ 32.704932][ T8] dump_stack+0x172/0x1f0 [ 32.704932][ T8] finish_task_switch+0x239/0x790 [ 32.704932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.704932][ T8] __schedule+0x7d3/0x1580 [ 32.704932][ T8] ? __sched_text_start+0x8/0x8 [ 32.704932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.704932][ T8] schedule+0xa8/0x260 [ 32.704932][ T8] kthread+0x27a/0x420 [ 32.704932][ T8] ? process_one_work+0x1790/0x1790 [ 32.704932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.704932][ T8] ret_from_fork+0x24/0x30 [ 32.704973][ T8] mmgrab (____ptrval____) to 4 [ 32.709733][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.714932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.714932][ T8] Call Trace: [ 32.714932][ T8] dump_stack+0x172/0x1f0 [ 32.714932][ T8] __schedule+0xd03/0x1580 [ 32.714932][ T8] ? __sched_text_start+0x8/0x8 [ 32.714932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.714932][ T8] schedule+0xa8/0x260 [ 32.714932][ T8] kthread+0x27a/0x420 [ 32.714932][ T8] ? process_one_work+0x1790/0x1790 [ 32.714932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.714932][ T8] ret_from_fork+0x24/0x30 [ 32.714961][ T7] mmdrop (____ptrval____) before 4 [ 32.720067][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.724932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.724932][ T7] Workqueue: 0x0 (events) [ 32.724932][ T7] Call Trace: [ 32.724932][ T7] dump_stack+0x172/0x1f0 [ 32.724932][ T7] finish_task_switch+0x239/0x790 [ 32.724932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.724932][ T7] __schedule+0x7d3/0x1580 [ 32.724932][ T7] ? __sched_text_start+0x8/0x8 [ 32.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.724932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.724932][ T7] ? kthread_data+0x58/0xc0 [ 32.724932][ T7] schedule+0xa8/0x260 [ 32.724932][ T7] worker_thread+0x248/0xe40 [ 32.724932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.724932][ T7] kthread+0x354/0x420 [ 32.724932][ T7] ? process_one_work+0x1790/0x1790 [ 32.724932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.724932][ T7] ret_from_fork+0x24/0x30 [ 32.724973][ T7] mmgrab (____ptrval____) to 4 [ 32.729947][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.734932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.734932][ T7] Workqueue: 0x0 (events) [ 32.734932][ T7] Call Trace: [ 32.734932][ T7] dump_stack+0x172/0x1f0 [ 32.734932][ T7] __schedule+0xd03/0x1580 [ 32.734932][ T7] ? __sched_text_start+0x8/0x8 [ 32.734932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.734932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.734932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.734932][ T7] ? kthread_data+0x58/0xc0 [ 32.734932][ T7] schedule+0xa8/0x260 [ 32.734932][ T7] worker_thread+0x248/0xe40 [ 32.734932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.734932][ T7] kthread+0x354/0x420 [ 32.734932][ T7] ? process_one_work+0x1790/0x1790 [ 32.734932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.734932][ T7] ret_from_fork+0x24/0x30 [ 32.734962][ T1] mmdrop (____ptrval____) before 4 [ 32.744983][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.752089][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.754932][ T1] Call Trace: [ 32.754932][ T1] dump_stack+0x172/0x1f0 [ 32.754932][ T1] finish_task_switch+0x239/0x790 [ 32.754932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.754932][ T1] __schedule+0x7d3/0x1580 [ 32.754932][ T1] ? __sched_text_start+0x8/0x8 [ 32.754932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.754932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.754932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.754932][ T1] preempt_schedule+0x4b/0x60 [ 32.754932][ T1] ___preempt_schedule+0x16/0x18 [ 32.754932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.754932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.754932][ T1] link_pwq+0x151/0x2a0 [ 32.754932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.754932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.754932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.754932][ T1] ? cpumask_next+0x41/0x50 [ 32.754932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.754932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.754932][ T1] init_mm_internals+0x24/0x3c9 [ 32.754932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.754932][ T1] ? rest_init+0x37b/0x37b [ 32.754932][ T1] kernel_init+0x12/0x1c5 [ 32.754932][ T1] ret_from_fork+0x24/0x30 [ 32.754979][ T1] mmgrab (____ptrval____) to 4 [ 32.759738][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.764932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.764932][ T1] Call Trace: [ 32.764932][ T1] dump_stack+0x172/0x1f0 [ 32.764932][ T1] __schedule+0xd03/0x1580 [ 32.764932][ T1] ? __sched_text_start+0x8/0x8 [ 32.764932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.764932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.764932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.764932][ T1] preempt_schedule+0x4b/0x60 [ 32.764932][ T1] ___preempt_schedule+0x16/0x18 [ 32.764932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.764932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.764932][ T1] link_pwq+0x151/0x2a0 [ 32.764932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.764932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.764932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.764932][ T1] ? cpumask_next+0x41/0x50 [ 32.764932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.764932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.764932][ T1] init_mm_internals+0x24/0x3c9 [ 32.764932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.764932][ T1] ? rest_init+0x37b/0x37b [ 32.764932][ T1] kernel_init+0x12/0x1c5 [ 32.764932][ T1] ret_from_fork+0x24/0x30 [ 32.764962][ T8] mmdrop (____ptrval____) before 4 [ 32.770074][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.774932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.774932][ T8] Call Trace: [ 32.774932][ T8] dump_stack+0x172/0x1f0 [ 32.774932][ T8] finish_task_switch+0x239/0x790 [ 32.774932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.774932][ T8] __schedule+0x7d3/0x1580 [ 32.774932][ T8] ? __sched_text_start+0x8/0x8 [ 32.774932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.774932][ T8] schedule+0xa8/0x260 [ 32.774932][ T8] kthread+0x27a/0x420 [ 32.774932][ T8] ? process_one_work+0x1790/0x1790 [ 32.774932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.774932][ T8] ret_from_fork+0x24/0x30 [ 32.774973][ T8] mmgrab (____ptrval____) to 4 [ 32.779732][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.784932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.784932][ T8] Call Trace: [ 32.784932][ T8] dump_stack+0x172/0x1f0 [ 32.784932][ T8] __schedule+0xd03/0x1580 [ 32.784932][ T8] ? __sched_text_start+0x8/0x8 [ 32.784932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.784932][ T8] schedule+0xa8/0x260 [ 32.784932][ T8] kthread+0x27a/0x420 [ 32.784932][ T8] ? process_one_work+0x1790/0x1790 [ 32.784932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.784932][ T8] ret_from_fork+0x24/0x30 [ 32.794952][ T7] mmdrop (____ptrval____) before 4 [ 32.800055][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.804932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.804932][ T7] Workqueue: 0x0 (events) [ 32.804932][ T7] Call Trace: [ 32.804932][ T7] dump_stack+0x172/0x1f0 [ 32.804932][ T7] finish_task_switch+0x239/0x790 [ 32.804932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.804932][ T7] __schedule+0x7d3/0x1580 [ 32.804932][ T7] ? __sched_text_start+0x8/0x8 [ 32.804932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.804932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.804932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.804932][ T7] ? kthread_data+0x58/0xc0 [ 32.804932][ T7] schedule+0xa8/0x260 [ 32.804932][ T7] worker_thread+0x248/0xe40 [ 32.804932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.804932][ T7] kthread+0x354/0x420 [ 32.804932][ T7] ? process_one_work+0x1790/0x1790 [ 32.804932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.804932][ T7] ret_from_fork+0x24/0x30 [ 32.804974][ T7] mmgrab (____ptrval____) to 4 [ 32.809858][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.814932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.814932][ T7] Workqueue: 0x0 (events) [ 32.814932][ T7] Call Trace: [ 32.814932][ T7] dump_stack+0x172/0x1f0 [ 32.814932][ T7] __schedule+0xd03/0x1580 [ 32.814932][ T7] ? __sched_text_start+0x8/0x8 [ 32.814932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.814932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.814932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.814932][ T7] ? kthread_data+0x58/0xc0 [ 32.814932][ T7] schedule+0xa8/0x260 [ 32.814932][ T7] worker_thread+0x248/0xe40 [ 32.814932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.814932][ T7] kthread+0x354/0x420 [ 32.814932][ T7] ? process_one_work+0x1790/0x1790 [ 32.814932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.814932][ T7] ret_from_fork+0x24/0x30 [ 32.814961][ T8] mmdrop (____ptrval____) before 4 [ 32.820128][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.824932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.824932][ T8] Call Trace: [ 32.824932][ T8] dump_stack+0x172/0x1f0 [ 32.824932][ T8] finish_task_switch+0x239/0x790 [ 32.824932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.824932][ T8] __schedule+0x7d3/0x1580 [ 32.824932][ T8] ? __sched_text_start+0x8/0x8 [ 32.824932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.824932][ T8] schedule+0xa8/0x260 [ 32.824932][ T8] kthread+0x27a/0x420 [ 32.824932][ T8] ? process_one_work+0x1790/0x1790 [ 32.824932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.824932][ T8] ret_from_fork+0x24/0x30 [ 32.824974][ T8] mmgrab (____ptrval____) to 4 [ 32.829849][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.834932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.834932][ T8] Call Trace: [ 32.834932][ T8] dump_stack+0x172/0x1f0 [ 32.834932][ T8] __schedule+0xd03/0x1580 [ 32.834932][ T8] ? __sched_text_start+0x8/0x8 [ 32.834932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.834932][ T8] schedule+0xa8/0x260 [ 32.834932][ T8] kthread+0x27a/0x420 [ 32.834932][ T8] ? process_one_work+0x1790/0x1790 [ 32.834932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.834932][ T8] ret_from_fork+0x24/0x30 [ 32.834962][ T1] mmdrop (____ptrval____) before 4 [ 32.844964][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.852064][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.854932][ T1] Call Trace: [ 32.854932][ T1] dump_stack+0x172/0x1f0 [ 32.854932][ T1] finish_task_switch+0x239/0x790 [ 32.854932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.854932][ T1] __schedule+0x7d3/0x1580 [ 32.854932][ T1] ? __sched_text_start+0x8/0x8 [ 32.854932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.854932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.854932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.854932][ T1] preempt_schedule+0x4b/0x60 [ 32.854932][ T1] ___preempt_schedule+0x16/0x18 [ 32.854932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.854932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.854932][ T1] link_pwq+0x151/0x2a0 [ 32.854932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.854932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.854932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.854932][ T1] ? cpumask_next+0x41/0x50 [ 32.854932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.854932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.854932][ T1] init_mm_internals+0x24/0x3c9 [ 32.854932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.854932][ T1] ? rest_init+0x37b/0x37b [ 32.854932][ T1] kernel_init+0x12/0x1c5 [ 32.854932][ T1] ret_from_fork+0x24/0x30 [ 32.854974][ T1] mmgrab (____ptrval____) to 4 [ 32.859735][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.864932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.864932][ T1] Call Trace: [ 32.864932][ T1] dump_stack+0x172/0x1f0 [ 32.864932][ T1] __schedule+0xd03/0x1580 [ 32.864932][ T1] ? __sched_text_start+0x8/0x8 [ 32.864932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.864932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.864932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.864932][ T1] preempt_schedule+0x4b/0x60 [ 32.864932][ T1] ___preempt_schedule+0x16/0x18 [ 32.864932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.864932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.864932][ T1] link_pwq+0x151/0x2a0 [ 32.864932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.864932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.864932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.864932][ T1] ? cpumask_next+0x41/0x50 [ 32.864932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.864932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.864932][ T1] init_mm_internals+0x24/0x3c9 [ 32.864932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.864932][ T1] ? rest_init+0x37b/0x37b [ 32.864932][ T1] kernel_init+0x12/0x1c5 [ 32.864932][ T1] ret_from_fork+0x24/0x30 [ 32.864961][ T7] mmdrop (____ptrval____) before 4 [ 32.874963][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.882365][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.884932][ T7] Workqueue: 0x0 (events) [ 32.884932][ T7] Call Trace: [ 32.884932][ T7] dump_stack+0x172/0x1f0 [ 32.884932][ T7] finish_task_switch+0x239/0x790 [ 32.884932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.884932][ T7] __schedule+0x7d3/0x1580 [ 32.884932][ T7] ? __sched_text_start+0x8/0x8 [ 32.884932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.884932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.884932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.884932][ T7] ? kthread_data+0x58/0xc0 [ 32.884932][ T7] schedule+0xa8/0x260 [ 32.884932][ T7] worker_thread+0x248/0xe40 [ 32.884932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.884932][ T7] kthread+0x354/0x420 [ 32.884932][ T7] ? process_one_work+0x1790/0x1790 [ 32.884932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.884932][ T7] ret_from_fork+0x24/0x30 [ 32.884973][ T7] mmgrab (____ptrval____) to 4 [ 32.889725][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.894932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.894932][ T7] Workqueue: 0x0 (events) [ 32.894932][ T7] Call Trace: [ 32.894932][ T7] dump_stack+0x172/0x1f0 [ 32.894932][ T7] __schedule+0xd03/0x1580 [ 32.894932][ T7] ? __sched_text_start+0x8/0x8 [ 32.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.894932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.894932][ T7] ? kthread_data+0x58/0xc0 [ 32.894932][ T7] schedule+0xa8/0x260 [ 32.894932][ T7] worker_thread+0x248/0xe40 [ 32.894932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.894932][ T7] kthread+0x354/0x420 [ 32.894932][ T7] ? process_one_work+0x1790/0x1790 [ 32.894932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.894932][ T7] ret_from_fork+0x24/0x30 [ 32.894962][ T8] mmdrop (____ptrval____) before 4 [ 32.900488][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.904932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.904932][ T8] Call Trace: [ 32.904932][ T8] dump_stack+0x172/0x1f0 [ 32.904932][ T8] finish_task_switch+0x239/0x790 [ 32.904932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.904932][ T8] __schedule+0x7d3/0x1580 [ 32.904932][ T8] ? __sched_text_start+0x8/0x8 [ 32.904932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.904932][ T8] schedule+0xa8/0x260 [ 32.904932][ T8] kthread+0x27a/0x420 [ 32.904932][ T8] ? process_one_work+0x1790/0x1790 [ 32.904932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.904932][ T8] ret_from_fork+0x24/0x30 [ 32.904977][ T8] mmgrab (____ptrval____) to 4 [ 32.909751][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.914932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.914932][ T8] Call Trace: [ 32.914932][ T8] dump_stack+0x172/0x1f0 [ 32.914932][ T8] __schedule+0xd03/0x1580 [ 32.914932][ T8] ? __sched_text_start+0x8/0x8 [ 32.914932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.914932][ T8] schedule+0xa8/0x260 [ 32.914932][ T8] kthread+0x27a/0x420 [ 32.914932][ T8] ? process_one_work+0x1790/0x1790 [ 32.914932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.914932][ T8] ret_from_fork+0x24/0x30 [ 32.914962][ T1] mmdrop (____ptrval____) before 4 [ 32.920096][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.924932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.924932][ T1] Call Trace: [ 32.924932][ T1] dump_stack+0x172/0x1f0 [ 32.924932][ T1] finish_task_switch+0x239/0x790 [ 32.924932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.924932][ T1] __schedule+0x7d3/0x1580 [ 32.924932][ T1] ? __sched_text_start+0x8/0x8 [ 32.924932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.924932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.924932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.924932][ T1] preempt_schedule+0x4b/0x60 [ 32.924932][ T1] ___preempt_schedule+0x16/0x18 [ 32.924932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.924932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.924932][ T1] link_pwq+0x151/0x2a0 [ 32.924932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.924932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.924932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.924932][ T1] ? cpumask_next+0x41/0x50 [ 32.924932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.924932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.924932][ T1] init_mm_internals+0x24/0x3c9 [ 32.924932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.924932][ T1] ? rest_init+0x37b/0x37b [ 32.924932][ T1] kernel_init+0x12/0x1c5 [ 32.924932][ T1] ret_from_fork+0x24/0x30 [ 32.924981][ T1] mmgrab (____ptrval____) to 4 [ 32.929775][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.934932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.934932][ T1] Call Trace: [ 32.934932][ T1] dump_stack+0x172/0x1f0 [ 32.934932][ T1] __schedule+0xd03/0x1580 [ 32.934932][ T1] ? __sched_text_start+0x8/0x8 [ 32.934932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.934932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.934932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.934932][ T1] preempt_schedule+0x4b/0x60 [ 32.934932][ T1] ___preempt_schedule+0x16/0x18 [ 32.934932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.934932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.934932][ T1] link_pwq+0x151/0x2a0 [ 32.934932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.934932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.934932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.934932][ T1] ? cpumask_next+0x41/0x50 [ 32.934932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.934932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.934932][ T1] init_mm_internals+0x24/0x3c9 [ 32.934932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.934932][ T1] ? rest_init+0x37b/0x37b [ 32.934932][ T1] kernel_init+0x12/0x1c5 [ 32.934932][ T1] ret_from_fork+0x24/0x30 [ 32.934962][ T7] mmdrop (____ptrval____) before 4 [ 32.940070][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.944932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.944932][ T7] Workqueue: 0x0 (events) [ 32.944932][ T7] Call Trace: [ 32.944932][ T7] dump_stack+0x172/0x1f0 [ 32.944932][ T7] finish_task_switch+0x239/0x790 [ 32.944932][ T7] ? dump_stack+0x1de/0x1f0 [ 32.944932][ T7] __schedule+0x7d3/0x1580 [ 32.944932][ T7] ? __sched_text_start+0x8/0x8 [ 32.944932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.944932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.944932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.944932][ T7] ? kthread_data+0x58/0xc0 [ 32.944932][ T7] schedule+0xa8/0x260 [ 32.944932][ T7] worker_thread+0x248/0xe40 [ 32.944932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.944932][ T7] kthread+0x354/0x420 [ 32.944932][ T7] ? process_one_work+0x1790/0x1790 [ 32.944932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.944932][ T7] ret_from_fork+0x24/0x30 [ 32.944973][ T7] mmgrab (____ptrval____) to 4 [ 32.949729][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 32.954932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.954932][ T7] Workqueue: 0x0 (events) [ 32.954932][ T7] Call Trace: [ 32.954932][ T7] dump_stack+0x172/0x1f0 [ 32.954932][ T7] __schedule+0xd03/0x1580 [ 32.954932][ T7] ? __sched_text_start+0x8/0x8 [ 32.954932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.954932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 32.954932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.954932][ T7] ? kthread_data+0x58/0xc0 [ 32.954932][ T7] schedule+0xa8/0x260 [ 32.954932][ T7] worker_thread+0x248/0xe40 [ 32.954932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 32.954932][ T7] kthread+0x354/0x420 [ 32.954932][ T7] ? process_one_work+0x1790/0x1790 [ 32.954932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.954932][ T7] ret_from_fork+0x24/0x30 [ 32.954961][ T8] mmdrop (____ptrval____) before 4 [ 32.960302][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.964932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.964932][ T8] Call Trace: [ 32.964932][ T8] dump_stack+0x172/0x1f0 [ 32.964932][ T8] finish_task_switch+0x239/0x790 [ 32.964932][ T8] ? dump_stack+0x1de/0x1f0 [ 32.964932][ T8] __schedule+0x7d3/0x1580 [ 32.964932][ T8] ? __sched_text_start+0x8/0x8 [ 32.964932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.964932][ T8] schedule+0xa8/0x260 [ 32.964932][ T8] kthread+0x27a/0x420 [ 32.964932][ T8] ? process_one_work+0x1790/0x1790 [ 32.964932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.964932][ T8] ret_from_fork+0x24/0x30 [ 32.965006][ T8] mmgrab (____ptrval____) to 4 [ 32.969764][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 32.974932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.974932][ T8] Call Trace: [ 32.974932][ T8] dump_stack+0x172/0x1f0 [ 32.974932][ T8] __schedule+0xd03/0x1580 [ 32.974932][ T8] ? __sched_text_start+0x8/0x8 [ 32.974932][ T8] ? ___preempt_schedule+0x16/0x18 [ 32.974932][ T8] schedule+0xa8/0x260 [ 32.974932][ T8] kthread+0x27a/0x420 [ 32.974932][ T8] ? process_one_work+0x1790/0x1790 [ 32.974932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 32.974932][ T8] ret_from_fork+0x24/0x30 [ 32.974974][ T1] mmdrop (____ptrval____) before 4 [ 32.984989][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 32.992353][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.994932][ T1] Call Trace: [ 32.994932][ T1] dump_stack+0x172/0x1f0 [ 32.994932][ T1] finish_task_switch+0x239/0x790 [ 32.994932][ T1] ? dump_stack+0x1de/0x1f0 [ 32.994932][ T1] __schedule+0x7d3/0x1580 [ 32.994932][ T1] ? __sched_text_start+0x8/0x8 [ 32.994932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 32.994932][ T1] ? preempt_schedule+0x4b/0x60 [ 32.994932][ T1] preempt_schedule_common+0x4f/0xe0 [ 32.994932][ T1] preempt_schedule+0x4b/0x60 [ 32.994932][ T1] ___preempt_schedule+0x16/0x18 [ 32.994932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 32.994932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 32.994932][ T1] link_pwq+0x151/0x2a0 [ 32.994932][ T1] alloc_workqueue+0xb93/0xf00 [ 32.994932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 32.994932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 32.994932][ T1] ? cpumask_next+0x41/0x50 [ 32.994932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.994932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 32.994932][ T1] init_mm_internals+0x24/0x3c9 [ 32.994932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 32.994932][ T1] ? rest_init+0x37b/0x37b [ 32.994932][ T1] kernel_init+0x12/0x1c5 [ 32.994932][ T1] ret_from_fork+0x24/0x30 [ 32.994973][ T1] mmgrab (____ptrval____) to 4 [ 32.999728][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.004932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.004932][ T1] Call Trace: [ 33.004932][ T1] dump_stack+0x172/0x1f0 [ 33.004932][ T1] __schedule+0xd03/0x1580 [ 33.004932][ T1] ? __sched_text_start+0x8/0x8 [ 33.004932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.004932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.004932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.004932][ T1] preempt_schedule+0x4b/0x60 [ 33.004932][ T1] ___preempt_schedule+0x16/0x18 [ 33.004932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.004932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.004932][ T1] link_pwq+0x151/0x2a0 [ 33.004932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.004932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.004932][ T1] ? cpumask_next+0x41/0x50 [ 33.004932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.004932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.004932][ T1] init_mm_internals+0x24/0x3c9 [ 33.004932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.004932][ T1] ? rest_init+0x37b/0x37b [ 33.004932][ T1] kernel_init+0x12/0x1c5 [ 33.004932][ T1] ret_from_fork+0x24/0x30 [ 33.004965][ T7] mmdrop (____ptrval____) before 4 [ 33.010637][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.014932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.014932][ T7] Workqueue: 0x0 (events) [ 33.014932][ T7] Call Trace: [ 33.014932][ T7] dump_stack+0x172/0x1f0 [ 33.014932][ T7] finish_task_switch+0x239/0x790 [ 33.014932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.014932][ T7] __schedule+0x7d3/0x1580 [ 33.014932][ T7] ? __sched_text_start+0x8/0x8 [ 33.014932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.014932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.014932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.014932][ T7] ? kthread_data+0x58/0xc0 [ 33.014932][ T7] schedule+0xa8/0x260 [ 33.014932][ T7] worker_thread+0x248/0xe40 [ 33.014932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.014932][ T7] kthread+0x354/0x420 [ 33.014932][ T7] ? process_one_work+0x1790/0x1790 [ 33.014932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.014932][ T7] ret_from_fork+0x24/0x30 [ 33.014974][ T7] mmgrab (____ptrval____) to 4 [ 33.019876][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.024932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.024932][ T7] Workqueue: 0x0 (events) [ 33.024932][ T7] Call Trace: [ 33.024932][ T7] dump_stack+0x172/0x1f0 [ 33.024932][ T7] __schedule+0xd03/0x1580 [ 33.024932][ T7] ? __sched_text_start+0x8/0x8 [ 33.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.024932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.024932][ T7] ? kthread_data+0x58/0xc0 [ 33.024932][ T7] schedule+0xa8/0x260 [ 33.024932][ T7] worker_thread+0x248/0xe40 [ 33.024932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.024932][ T7] kthread+0x354/0x420 [ 33.024932][ T7] ? process_one_work+0x1790/0x1790 [ 33.024932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.024932][ T7] ret_from_fork+0x24/0x30 [ 33.024964][ T8] mmdrop (____ptrval____) before 4 [ 33.030268][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.034932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.034932][ T8] Call Trace: [ 33.034932][ T8] dump_stack+0x172/0x1f0 [ 33.034932][ T8] finish_task_switch+0x239/0x790 [ 33.034932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.034932][ T8] __schedule+0x7d3/0x1580 [ 33.034932][ T8] ? __sched_text_start+0x8/0x8 [ 33.034932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.034932][ T8] schedule+0xa8/0x260 [ 33.034932][ T8] kthread+0x27a/0x420 [ 33.034932][ T8] ? process_one_work+0x1790/0x1790 [ 33.034932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.034932][ T8] ret_from_fork+0x24/0x30 [ 33.034977][ T8] mmgrab (____ptrval____) to 4 [ 33.039779][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.044932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.044932][ T8] Call Trace: [ 33.044932][ T8] dump_stack+0x172/0x1f0 [ 33.044932][ T8] __schedule+0xd03/0x1580 [ 33.044932][ T8] ? __sched_text_start+0x8/0x8 [ 33.044932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.044932][ T8] schedule+0xa8/0x260 [ 33.044932][ T8] kthread+0x27a/0x420 [ 33.044932][ T8] ? process_one_work+0x1790/0x1790 [ 33.044932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.044932][ T8] ret_from_fork+0x24/0x30 [ 33.044964][ T1] mmdrop (____ptrval____) before 4 [ 33.050100][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.054932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.054932][ T1] Call Trace: [ 33.054932][ T1] dump_stack+0x172/0x1f0 [ 33.054932][ T1] finish_task_switch+0x239/0x790 [ 33.054932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.054932][ T1] __schedule+0x7d3/0x1580 [ 33.054932][ T1] ? __sched_text_start+0x8/0x8 [ 33.054932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.054932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.054932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.054932][ T1] preempt_schedule+0x4b/0x60 [ 33.054932][ T1] ___preempt_schedule+0x16/0x18 [ 33.054932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.054932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.054932][ T1] link_pwq+0x151/0x2a0 [ 33.054932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.054932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.054932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.054932][ T1] ? cpumask_next+0x41/0x50 [ 33.054932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.054932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.054932][ T1] init_mm_internals+0x24/0x3c9 [ 33.054932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.054932][ T1] ? rest_init+0x37b/0x37b [ 33.054932][ T1] kernel_init+0x12/0x1c5 [ 33.054932][ T1] ret_from_fork+0x24/0x30 [ 33.054976][ T1] mmgrab (____ptrval____) to 4 [ 33.060035][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.064932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.064932][ T1] Call Trace: [ 33.064932][ T1] dump_stack+0x172/0x1f0 [ 33.064932][ T1] __schedule+0xd03/0x1580 [ 33.064932][ T1] ? __sched_text_start+0x8/0x8 [ 33.064932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.064932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.064932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.064932][ T1] preempt_schedule+0x4b/0x60 [ 33.064932][ T1] ___preempt_schedule+0x16/0x18 [ 33.064932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.064932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.064932][ T1] link_pwq+0x151/0x2a0 [ 33.064932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.064932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.064932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.064932][ T1] ? cpumask_next+0x41/0x50 [ 33.064932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.064932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.064932][ T1] init_mm_internals+0x24/0x3c9 [ 33.064932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.064932][ T1] ? rest_init+0x37b/0x37b [ 33.064932][ T1] kernel_init+0x12/0x1c5 [ 33.064932][ T1] ret_from_fork+0x24/0x30 [ 33.064960][ T7] mmdrop (____ptrval____) before 4 [ 33.074968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.082330][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.084932][ T7] Workqueue: 0x0 (events) [ 33.084932][ T7] Call Trace: [ 33.084932][ T7] dump_stack+0x172/0x1f0 [ 33.084932][ T7] finish_task_switch+0x239/0x790 [ 33.084932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.084932][ T7] __schedule+0x7d3/0x1580 [ 33.084932][ T7] ? __sched_text_start+0x8/0x8 [ 33.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.084932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.084932][ T7] ? kthread_data+0x58/0xc0 [ 33.084932][ T7] schedule+0xa8/0x260 [ 33.084932][ T7] worker_thread+0x248/0xe40 [ 33.084932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.084932][ T7] kthread+0x354/0x420 [ 33.084932][ T7] ? process_one_work+0x1790/0x1790 [ 33.084932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.084932][ T7] ret_from_fork+0x24/0x30 [ 33.084974][ T7] mmgrab (____ptrval____) to 4 [ 33.089780][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.094932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.094932][ T7] Workqueue: 0x0 (events) [ 33.094932][ T7] Call Trace: [ 33.094932][ T7] dump_stack+0x172/0x1f0 [ 33.094932][ T7] __schedule+0xd03/0x1580 [ 33.094932][ T7] ? __sched_text_start+0x8/0x8 [ 33.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.094932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.094932][ T7] ? kthread_data+0x58/0xc0 [ 33.094932][ T7] schedule+0xa8/0x260 [ 33.094932][ T7] worker_thread+0x248/0xe40 [ 33.094932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.094932][ T7] kthread+0x354/0x420 [ 33.094932][ T7] ? process_one_work+0x1790/0x1790 [ 33.094932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.094932][ T7] ret_from_fork+0x24/0x30 [ 33.094963][ T8] mmdrop (____ptrval____) before 4 [ 33.104966][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.112532][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.114932][ T8] Call Trace: [ 33.114932][ T8] dump_stack+0x172/0x1f0 [ 33.114932][ T8] finish_task_switch+0x239/0x790 [ 33.114932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.114932][ T8] __schedule+0x7d3/0x1580 [ 33.114932][ T8] ? __sched_text_start+0x8/0x8 [ 33.114932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.114932][ T8] schedule+0xa8/0x260 [ 33.114932][ T8] kthread+0x27a/0x420 [ 33.114932][ T8] ? process_one_work+0x1790/0x1790 [ 33.114932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.114932][ T8] ret_from_fork+0x24/0x30 [ 33.114973][ T8] mmgrab (____ptrval____) to 4 [ 33.119726][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.124932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.124932][ T8] Call Trace: [ 33.124932][ T8] dump_stack+0x172/0x1f0 [ 33.124932][ T8] __schedule+0xd03/0x1580 [ 33.124932][ T8] ? __sched_text_start+0x8/0x8 [ 33.124932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.124932][ T8] schedule+0xa8/0x260 [ 33.124932][ T8] kthread+0x27a/0x420 [ 33.124932][ T8] ? process_one_work+0x1790/0x1790 [ 33.124932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.124932][ T8] ret_from_fork+0x24/0x30 [ 33.124964][ T1] mmdrop (____ptrval____) before 4 [ 33.134985][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.142495][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.144932][ T1] Call Trace: [ 33.144932][ T1] dump_stack+0x172/0x1f0 [ 33.144932][ T1] finish_task_switch+0x239/0x790 [ 33.144932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.144932][ T1] __schedule+0x7d3/0x1580 [ 33.144932][ T1] ? __sched_text_start+0x8/0x8 [ 33.144932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.144932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.144932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.144932][ T1] preempt_schedule+0x4b/0x60 [ 33.144932][ T1] ___preempt_schedule+0x16/0x18 [ 33.144932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.144932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.144932][ T1] link_pwq+0x151/0x2a0 [ 33.144932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.144932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.144932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.144932][ T1] ? cpumask_next+0x41/0x50 [ 33.144932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.144932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.144932][ T1] init_mm_internals+0x24/0x3c9 [ 33.144932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.144932][ T1] ? rest_init+0x37b/0x37b [ 33.144932][ T1] kernel_init+0x12/0x1c5 [ 33.144932][ T1] ret_from_fork+0x24/0x30 [ 33.144976][ T1] mmgrab (____ptrval____) to 4 [ 33.149931][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.154932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.154932][ T1] Call Trace: [ 33.154932][ T1] dump_stack+0x172/0x1f0 [ 33.154932][ T1] __schedule+0xd03/0x1580 [ 33.154932][ T1] ? __sched_text_start+0x8/0x8 [ 33.154932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.154932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.154932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.154932][ T1] preempt_schedule+0x4b/0x60 [ 33.154932][ T1] ___preempt_schedule+0x16/0x18 [ 33.154932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.154932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.154932][ T1] link_pwq+0x151/0x2a0 [ 33.154932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.154932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.154932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.154932][ T1] ? cpumask_next+0x41/0x50 [ 33.154932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.154932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.154932][ T1] init_mm_internals+0x24/0x3c9 [ 33.154932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.154932][ T1] ? rest_init+0x37b/0x37b [ 33.154932][ T1] kernel_init+0x12/0x1c5 [ 33.154932][ T1] ret_from_fork+0x24/0x30 [ 33.154963][ T7] mmdrop (____ptrval____) before 4 [ 33.164973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.172352][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.174932][ T7] Workqueue: 0x0 (events) [ 33.174932][ T7] Call Trace: [ 33.174932][ T7] dump_stack+0x172/0x1f0 [ 33.174932][ T7] finish_task_switch+0x239/0x790 [ 33.174932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.174932][ T7] __schedule+0x7d3/0x1580 [ 33.174932][ T7] ? __sched_text_start+0x8/0x8 [ 33.174932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.174932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.174932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.174932][ T7] ? kthread_data+0x58/0xc0 [ 33.174932][ T7] schedule+0xa8/0x260 [ 33.174932][ T7] worker_thread+0x248/0xe40 [ 33.174932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.174932][ T7] kthread+0x354/0x420 [ 33.174932][ T7] ? process_one_work+0x1790/0x1790 [ 33.174932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.174932][ T7] ret_from_fork+0x24/0x30 [ 33.174974][ T7] mmgrab (____ptrval____) to 4 [ 33.179738][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.184932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.184932][ T7] Workqueue: 0x0 (events) [ 33.184932][ T7] Call Trace: [ 33.184932][ T7] dump_stack+0x172/0x1f0 [ 33.184932][ T7] __schedule+0xd03/0x1580 [ 33.184932][ T7] ? __sched_text_start+0x8/0x8 [ 33.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.184932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.184932][ T7] ? kthread_data+0x58/0xc0 [ 33.184932][ T7] schedule+0xa8/0x260 [ 33.184932][ T7] worker_thread+0x248/0xe40 [ 33.184932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.184932][ T7] kthread+0x354/0x420 [ 33.184932][ T7] ? process_one_work+0x1790/0x1790 [ 33.184932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.184932][ T7] ret_from_fork+0x24/0x30 [ 33.184959][ T8] mmdrop (____ptrval____) before 4 [ 33.194967][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.202328][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.204932][ T8] Call Trace: [ 33.204932][ T8] dump_stack+0x172/0x1f0 [ 33.204932][ T8] finish_task_switch+0x239/0x790 [ 33.204932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.204932][ T8] __schedule+0x7d3/0x1580 [ 33.204932][ T8] ? __sched_text_start+0x8/0x8 [ 33.204932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.204932][ T8] schedule+0xa8/0x260 [ 33.204932][ T8] kthread+0x27a/0x420 [ 33.204932][ T8] ? process_one_work+0x1790/0x1790 [ 33.204932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.204932][ T8] ret_from_fork+0x24/0x30 [ 33.204973][ T8] mmgrab (____ptrval____) to 4 [ 33.209731][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.214932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.214932][ T8] Call Trace: [ 33.214932][ T8] dump_stack+0x172/0x1f0 [ 33.214932][ T8] __schedule+0xd03/0x1580 [ 33.214932][ T8] ? __sched_text_start+0x8/0x8 [ 33.214932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.214932][ T8] schedule+0xa8/0x260 [ 33.214932][ T8] kthread+0x27a/0x420 [ 33.214932][ T8] ? process_one_work+0x1790/0x1790 [ 33.214932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.214932][ T8] ret_from_fork+0x24/0x30 [ 33.214960][ T1] mmdrop (____ptrval____) before 4 [ 33.220069][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.224932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.224932][ T1] Call Trace: [ 33.224932][ T1] dump_stack+0x172/0x1f0 [ 33.224932][ T1] finish_task_switch+0x239/0x790 [ 33.224932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.224932][ T1] __schedule+0x7d3/0x1580 [ 33.224932][ T1] ? __sched_text_start+0x8/0x8 [ 33.224932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.224932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.224932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.224932][ T1] preempt_schedule+0x4b/0x60 [ 33.224932][ T1] ___preempt_schedule+0x16/0x18 [ 33.224932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.224932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.224932][ T1] link_pwq+0x151/0x2a0 [ 33.224932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.224932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.224932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.224932][ T1] ? cpumask_next+0x41/0x50 [ 33.224932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.224932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.224932][ T1] init_mm_internals+0x24/0x3c9 [ 33.224932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.224932][ T1] ? rest_init+0x37b/0x37b [ 33.224932][ T1] kernel_init+0x12/0x1c5 [ 33.224932][ T1] ret_from_fork+0x24/0x30 [ 33.224971][ T1] mmgrab (____ptrval____) to 4 [ 33.229730][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.234932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.234932][ T1] Call Trace: [ 33.234932][ T1] dump_stack+0x172/0x1f0 [ 33.234932][ T1] __schedule+0xd03/0x1580 [ 33.234932][ T1] ? __sched_text_start+0x8/0x8 [ 33.234932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.234932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.234932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.234932][ T1] preempt_schedule+0x4b/0x60 [ 33.234932][ T1] ___preempt_schedule+0x16/0x18 [ 33.234932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.234932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.234932][ T1] link_pwq+0x151/0x2a0 [ 33.234932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.234932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.234932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.234932][ T1] ? cpumask_next+0x41/0x50 [ 33.234932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.234932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.234932][ T1] init_mm_internals+0x24/0x3c9 [ 33.234932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.234932][ T1] ? rest_init+0x37b/0x37b [ 33.234932][ T1] kernel_init+0x12/0x1c5 [ 33.234932][ T1] ret_from_fork+0x24/0x30 [ 33.234981][ T7] mmdrop (____ptrval____) before 4 [ 33.240088][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.244932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.244932][ T7] Workqueue: 0x0 (events) [ 33.244932][ T7] Call Trace: [ 33.244932][ T7] dump_stack+0x172/0x1f0 [ 33.244932][ T7] finish_task_switch+0x239/0x790 [ 33.244932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.244932][ T7] __schedule+0x7d3/0x1580 [ 33.244932][ T7] ? __sched_text_start+0x8/0x8 [ 33.244932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.244932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.244932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.244932][ T7] ? kthread_data+0x58/0xc0 [ 33.244932][ T7] schedule+0xa8/0x260 [ 33.244932][ T7] worker_thread+0x248/0xe40 [ 33.244932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.244932][ T7] kthread+0x354/0x420 [ 33.244932][ T7] ? process_one_work+0x1790/0x1790 [ 33.244932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.244932][ T7] ret_from_fork+0x24/0x30 [ 33.244997][ T7] mmgrab (____ptrval____) to 4 [ 33.249754][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.254932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.254932][ T7] Workqueue: 0x0 (events) [ 33.254932][ T7] Call Trace: [ 33.254932][ T7] dump_stack+0x172/0x1f0 [ 33.254932][ T7] __schedule+0xd03/0x1580 [ 33.254932][ T7] ? __sched_text_start+0x8/0x8 [ 33.254932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.254932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.254932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.254932][ T7] ? kthread_data+0x58/0xc0 [ 33.254932][ T7] schedule+0xa8/0x260 [ 33.254932][ T7] worker_thread+0x248/0xe40 [ 33.254932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.254932][ T7] kthread+0x354/0x420 [ 33.254932][ T7] ? process_one_work+0x1790/0x1790 [ 33.254932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.254932][ T7] ret_from_fork+0x24/0x30 [ 33.254959][ T8] mmdrop (____ptrval____) before 4 [ 33.260066][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.264932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.264932][ T8] Call Trace: [ 33.264932][ T8] dump_stack+0x172/0x1f0 [ 33.264932][ T8] finish_task_switch+0x239/0x790 [ 33.264932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.264932][ T8] __schedule+0x7d3/0x1580 [ 33.264932][ T8] ? __sched_text_start+0x8/0x8 [ 33.264932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.264932][ T8] schedule+0xa8/0x260 [ 33.264932][ T8] kthread+0x27a/0x420 [ 33.264932][ T8] ? process_one_work+0x1790/0x1790 [ 33.264932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.264932][ T8] ret_from_fork+0x24/0x30 [ 33.264973][ T8] mmgrab (____ptrval____) to 4 [ 33.269922][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.274932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.274932][ T8] Call Trace: [ 33.274932][ T8] dump_stack+0x172/0x1f0 [ 33.274932][ T8] __schedule+0xd03/0x1580 [ 33.274932][ T8] ? __sched_text_start+0x8/0x8 [ 33.274932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.274932][ T8] schedule+0xa8/0x260 [ 33.274932][ T8] kthread+0x27a/0x420 [ 33.274932][ T8] ? process_one_work+0x1790/0x1790 [ 33.274932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.274932][ T8] ret_from_fork+0x24/0x30 [ 33.274961][ T1] mmdrop (____ptrval____) before 4 [ 33.280070][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.284932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.284932][ T1] Call Trace: [ 33.284932][ T1] dump_stack+0x172/0x1f0 [ 33.284932][ T1] finish_task_switch+0x239/0x790 [ 33.284932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.284932][ T1] __schedule+0x7d3/0x1580 [ 33.284932][ T1] ? __sched_text_start+0x8/0x8 [ 33.284932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.284932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.284932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.284932][ T1] preempt_schedule+0x4b/0x60 [ 33.284932][ T1] ___preempt_schedule+0x16/0x18 [ 33.284932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.284932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.284932][ T1] link_pwq+0x151/0x2a0 [ 33.284932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.284932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.284932][ T1] ? cpumask_next+0x41/0x50 [ 33.284932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.284932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.284932][ T1] init_mm_internals+0x24/0x3c9 [ 33.284932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.284932][ T1] ? rest_init+0x37b/0x37b [ 33.284932][ T1] kernel_init+0x12/0x1c5 [ 33.284932][ T1] ret_from_fork+0x24/0x30 [ 33.284972][ T1] mmgrab (____ptrval____) to 4 [ 33.289834][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.294932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.294932][ T1] Call Trace: [ 33.294932][ T1] dump_stack+0x172/0x1f0 [ 33.294932][ T1] __schedule+0xd03/0x1580 [ 33.294932][ T1] ? __sched_text_start+0x8/0x8 [ 33.294932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.294932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.294932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.294932][ T1] preempt_schedule+0x4b/0x60 [ 33.294932][ T1] ___preempt_schedule+0x16/0x18 [ 33.294932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.294932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.294932][ T1] link_pwq+0x151/0x2a0 [ 33.294932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.294932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.294932][ T1] ? cpumask_next+0x41/0x50 [ 33.294932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.294932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.294932][ T1] init_mm_internals+0x24/0x3c9 [ 33.294932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.294932][ T1] ? rest_init+0x37b/0x37b [ 33.294932][ T1] kernel_init+0x12/0x1c5 [ 33.294932][ T1] ret_from_fork+0x24/0x30 [ 33.294960][ T7] mmdrop (____ptrval____) before 4 [ 33.304959][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.312572][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.314932][ T7] Workqueue: 0x0 (events) [ 33.314932][ T7] Call Trace: [ 33.314932][ T7] dump_stack+0x172/0x1f0 [ 33.314932][ T7] finish_task_switch+0x239/0x790 [ 33.314932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.314932][ T7] __schedule+0x7d3/0x1580 [ 33.314932][ T7] ? __sched_text_start+0x8/0x8 [ 33.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.314932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.314932][ T7] ? kthread_data+0x58/0xc0 [ 33.314932][ T7] schedule+0xa8/0x260 [ 33.314932][ T7] worker_thread+0x248/0xe40 [ 33.314932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.314932][ T7] kthread+0x354/0x420 [ 33.314932][ T7] ? process_one_work+0x1790/0x1790 [ 33.314932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.314932][ T7] ret_from_fork+0x24/0x30 [ 33.314975][ T7] mmgrab (____ptrval____) to 4 [ 33.319968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.324932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.324932][ T7] Workqueue: 0x0 (events) [ 33.324932][ T7] Call Trace: [ 33.324932][ T7] dump_stack+0x172/0x1f0 [ 33.324932][ T7] __schedule+0xd03/0x1580 [ 33.324932][ T7] ? __sched_text_start+0x8/0x8 [ 33.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.324932][ T7] ? kthread_data+0x58/0xc0 [ 33.324932][ T7] schedule+0xa8/0x260 [ 33.324932][ T7] worker_thread+0x248/0xe40 [ 33.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.324932][ T7] kthread+0x354/0x420 [ 33.324932][ T7] ? process_one_work+0x1790/0x1790 [ 33.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.324932][ T7] ret_from_fork+0x24/0x30 [ 33.324962][ T8] mmdrop (____ptrval____) before 4 [ 33.334979][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.342390][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.344932][ T8] Call Trace: [ 33.344932][ T8] dump_stack+0x172/0x1f0 [ 33.344932][ T8] finish_task_switch+0x239/0x790 [ 33.344932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.344932][ T8] __schedule+0x7d3/0x1580 [ 33.344932][ T8] ? __sched_text_start+0x8/0x8 [ 33.344932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.344932][ T8] schedule+0xa8/0x260 [ 33.344932][ T8] kthread+0x27a/0x420 [ 33.344932][ T8] ? process_one_work+0x1790/0x1790 [ 33.344932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.344932][ T8] ret_from_fork+0x24/0x30 [ 33.344973][ T8] mmgrab (____ptrval____) to 4 [ 33.349843][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.354932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.354932][ T8] Call Trace: [ 33.354932][ T8] dump_stack+0x172/0x1f0 [ 33.354932][ T8] __schedule+0xd03/0x1580 [ 33.354932][ T8] ? __sched_text_start+0x8/0x8 [ 33.354932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.354932][ T8] schedule+0xa8/0x260 [ 33.354932][ T8] kthread+0x27a/0x420 [ 33.354932][ T8] ? process_one_work+0x1790/0x1790 [ 33.354932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.354932][ T8] ret_from_fork+0x24/0x30 [ 33.354963][ T1] mmdrop (____ptrval____) before 4 [ 33.364973][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.372199][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.374932][ T1] Call Trace: [ 33.374932][ T1] dump_stack+0x172/0x1f0 [ 33.374932][ T1] finish_task_switch+0x239/0x790 [ 33.374932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.374932][ T1] __schedule+0x7d3/0x1580 [ 33.374932][ T1] ? __sched_text_start+0x8/0x8 [ 33.374932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.374932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.374932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.374932][ T1] preempt_schedule+0x4b/0x60 [ 33.374932][ T1] ___preempt_schedule+0x16/0x18 [ 33.374932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.374932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.374932][ T1] link_pwq+0x151/0x2a0 [ 33.374932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.374932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.374932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.374932][ T1] ? cpumask_next+0x41/0x50 [ 33.374932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.374932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.374932][ T1] init_mm_internals+0x24/0x3c9 [ 33.374932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.374932][ T1] ? rest_init+0x37b/0x37b [ 33.374932][ T1] kernel_init+0x12/0x1c5 [ 33.374932][ T1] ret_from_fork+0x24/0x30 [ 33.374975][ T1] mmgrab (____ptrval____) to 4 [ 33.379764][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.384932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.384932][ T1] Call Trace: [ 33.384932][ T1] dump_stack+0x172/0x1f0 [ 33.384932][ T1] __schedule+0xd03/0x1580 [ 33.384932][ T1] ? __sched_text_start+0x8/0x8 [ 33.384932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.384932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.384932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.384932][ T1] preempt_schedule+0x4b/0x60 [ 33.384932][ T1] ___preempt_schedule+0x16/0x18 [ 33.384932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.384932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.384932][ T1] link_pwq+0x151/0x2a0 [ 33.384932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.384932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.384932][ T1] ? cpumask_next+0x41/0x50 [ 33.384932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.384932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.384932][ T1] init_mm_internals+0x24/0x3c9 [ 33.384932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.384932][ T1] ? rest_init+0x37b/0x37b [ 33.384932][ T1] kernel_init+0x12/0x1c5 [ 33.384932][ T1] ret_from_fork+0x24/0x30 [ 33.384962][ T7] mmdrop (____ptrval____) before 4 [ 33.394966][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.402987][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.404932][ T7] Workqueue: 0x0 (events) [ 33.404932][ T7] Call Trace: [ 33.404932][ T7] dump_stack+0x172/0x1f0 [ 33.404932][ T7] finish_task_switch+0x239/0x790 [ 33.404932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.404932][ T7] __schedule+0x7d3/0x1580 [ 33.404932][ T7] ? __sched_text_start+0x8/0x8 [ 33.404932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.404932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.404932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.404932][ T7] ? kthread_data+0x58/0xc0 [ 33.404932][ T7] schedule+0xa8/0x260 [ 33.404932][ T7] worker_thread+0x248/0xe40 [ 33.404932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.404932][ T7] kthread+0x354/0x420 [ 33.404932][ T7] ? process_one_work+0x1790/0x1790 [ 33.404932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.404932][ T7] ret_from_fork+0x24/0x30 [ 33.404975][ T7] mmgrab (____ptrval____) to 4 [ 33.409728][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.414932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.414932][ T7] Workqueue: 0x0 (events) [ 33.414932][ T7] Call Trace: [ 33.414932][ T7] dump_stack+0x172/0x1f0 [ 33.414932][ T7] __schedule+0xd03/0x1580 [ 33.414932][ T7] ? __sched_text_start+0x8/0x8 [ 33.414932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.414932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.414932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.414932][ T7] ? kthread_data+0x58/0xc0 [ 33.414932][ T7] schedule+0xa8/0x260 [ 33.414932][ T7] worker_thread+0x248/0xe40 [ 33.414932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.414932][ T7] kthread+0x354/0x420 [ 33.414932][ T7] ? process_one_work+0x1790/0x1790 [ 33.414932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.414932][ T7] ret_from_fork+0x24/0x30 [ 33.414962][ T8] mmdrop (____ptrval____) before 4 [ 33.424974][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.432432][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.434932][ T8] Call Trace: [ 33.434932][ T8] dump_stack+0x172/0x1f0 [ 33.434932][ T8] finish_task_switch+0x239/0x790 [ 33.434932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.434932][ T8] __schedule+0x7d3/0x1580 [ 33.434932][ T8] ? __sched_text_start+0x8/0x8 [ 33.434932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.434932][ T8] schedule+0xa8/0x260 [ 33.434932][ T8] kthread+0x27a/0x420 [ 33.434932][ T8] ? process_one_work+0x1790/0x1790 [ 33.434932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.434932][ T8] ret_from_fork+0x24/0x30 [ 33.434974][ T8] mmgrab (____ptrval____) to 4 [ 33.439811][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.444932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.444932][ T8] Call Trace: [ 33.444932][ T8] dump_stack+0x172/0x1f0 [ 33.444932][ T8] __schedule+0xd03/0x1580 [ 33.444932][ T8] ? __sched_text_start+0x8/0x8 [ 33.444932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.444932][ T8] schedule+0xa8/0x260 [ 33.444932][ T8] kthread+0x27a/0x420 [ 33.444932][ T8] ? process_one_work+0x1790/0x1790 [ 33.444932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.444932][ T8] ret_from_fork+0x24/0x30 [ 33.444965][ T1] mmdrop (____ptrval____) before 4 [ 33.450086][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.454932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.454932][ T1] Call Trace: [ 33.454932][ T1] dump_stack+0x172/0x1f0 [ 33.454932][ T1] finish_task_switch+0x239/0x790 [ 33.454932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.454932][ T1] __schedule+0x7d3/0x1580 [ 33.454932][ T1] ? __sched_text_start+0x8/0x8 [ 33.454932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.454932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.454932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.454932][ T1] preempt_schedule+0x4b/0x60 [ 33.454932][ T1] ___preempt_schedule+0x16/0x18 [ 33.454932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.454932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.454932][ T1] link_pwq+0x151/0x2a0 [ 33.454932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.454932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.454932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.454932][ T1] ? cpumask_next+0x41/0x50 [ 33.454932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.454932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.454932][ T1] init_mm_internals+0x24/0x3c9 [ 33.454932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.454932][ T1] ? rest_init+0x37b/0x37b [ 33.454932][ T1] kernel_init+0x12/0x1c5 [ 33.454932][ T1] ret_from_fork+0x24/0x30 [ 33.454978][ T1] mmgrab (____ptrval____) to 4 [ 33.459793][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.464932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.464932][ T1] Call Trace: [ 33.464932][ T1] dump_stack+0x172/0x1f0 [ 33.464932][ T1] __schedule+0xd03/0x1580 [ 33.464932][ T1] ? __sched_text_start+0x8/0x8 [ 33.464932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.464932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.464932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.464932][ T1] preempt_schedule+0x4b/0x60 [ 33.464932][ T1] ___preempt_schedule+0x16/0x18 [ 33.464932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.464932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.464932][ T1] link_pwq+0x151/0x2a0 [ 33.464932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.464932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.464932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.464932][ T1] ? cpumask_next+0x41/0x50 [ 33.464932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.464932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.464932][ T1] init_mm_internals+0x24/0x3c9 [ 33.464932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.464932][ T1] ? rest_init+0x37b/0x37b [ 33.464932][ T1] kernel_init+0x12/0x1c5 [ 33.464932][ T1] ret_from_fork+0x24/0x30 [ 33.464962][ T7] mmdrop (____ptrval____) before 4 [ 33.474972][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.482750][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.484932][ T7] Workqueue: 0x0 (events) [ 33.484932][ T7] Call Trace: [ 33.484932][ T7] dump_stack+0x172/0x1f0 [ 33.484932][ T7] finish_task_switch+0x239/0x790 [ 33.484932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.484932][ T7] __schedule+0x7d3/0x1580 [ 33.484932][ T7] ? __sched_text_start+0x8/0x8 [ 33.484932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.484932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.484932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.484932][ T7] ? kthread_data+0x58/0xc0 [ 33.484932][ T7] schedule+0xa8/0x260 [ 33.484932][ T7] worker_thread+0x248/0xe40 [ 33.484932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.484932][ T7] kthread+0x354/0x420 [ 33.484932][ T7] ? process_one_work+0x1790/0x1790 [ 33.484932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.484932][ T7] ret_from_fork+0x24/0x30 [ 33.484973][ T7] mmgrab (____ptrval____) to 4 [ 33.489850][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.494932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.494932][ T7] Workqueue: 0x0 (events) [ 33.494932][ T7] Call Trace: [ 33.494932][ T7] dump_stack+0x172/0x1f0 [ 33.494932][ T7] __schedule+0xd03/0x1580 [ 33.494932][ T7] ? __sched_text_start+0x8/0x8 [ 33.494932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.494932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.494932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.494932][ T7] ? kthread_data+0x58/0xc0 [ 33.494932][ T7] schedule+0xa8/0x260 [ 33.494932][ T7] worker_thread+0x248/0xe40 [ 33.494932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.494932][ T7] kthread+0x354/0x420 [ 33.494932][ T7] ? process_one_work+0x1790/0x1790 [ 33.494932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.494932][ T7] ret_from_fork+0x24/0x30 [ 33.494964][ T8] mmdrop (____ptrval____) before 4 [ 33.500331][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.504932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.504932][ T8] Call Trace: [ 33.504932][ T8] dump_stack+0x172/0x1f0 [ 33.504932][ T8] finish_task_switch+0x239/0x790 [ 33.504932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.504932][ T8] __schedule+0x7d3/0x1580 [ 33.504932][ T8] ? __sched_text_start+0x8/0x8 [ 33.504932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.504932][ T8] schedule+0xa8/0x260 [ 33.504932][ T8] kthread+0x27a/0x420 [ 33.504932][ T8] ? process_one_work+0x1790/0x1790 [ 33.504932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.504932][ T8] ret_from_fork+0x24/0x30 [ 33.504977][ T8] mmgrab (____ptrval____) to 4 [ 33.510167][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.514932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.514932][ T8] Call Trace: [ 33.514932][ T8] dump_stack+0x172/0x1f0 [ 33.514932][ T8] __schedule+0xd03/0x1580 [ 33.514932][ T8] ? __sched_text_start+0x8/0x8 [ 33.514932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.514932][ T8] schedule+0xa8/0x260 [ 33.514932][ T8] kthread+0x27a/0x420 [ 33.514932][ T8] ? process_one_work+0x1790/0x1790 [ 33.514932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.514932][ T8] ret_from_fork+0x24/0x30 [ 33.514965][ T1] mmdrop (____ptrval____) before 4 [ 33.524977][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.532798][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.534932][ T1] Call Trace: [ 33.534932][ T1] dump_stack+0x172/0x1f0 [ 33.534932][ T1] finish_task_switch+0x239/0x790 [ 33.534932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.534932][ T1] __schedule+0x7d3/0x1580 [ 33.534932][ T1] ? __sched_text_start+0x8/0x8 [ 33.534932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.534932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.534932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.534932][ T1] preempt_schedule+0x4b/0x60 [ 33.534932][ T1] ___preempt_schedule+0x16/0x18 [ 33.534932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.534932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.534932][ T1] link_pwq+0x151/0x2a0 [ 33.534932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.534932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.534932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.534932][ T1] ? cpumask_next+0x41/0x50 [ 33.534932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.534932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.534932][ T1] init_mm_internals+0x24/0x3c9 [ 33.534932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.534932][ T1] ? rest_init+0x37b/0x37b [ 33.534932][ T1] kernel_init+0x12/0x1c5 [ 33.534932][ T1] ret_from_fork+0x24/0x30 [ 33.534975][ T1] mmgrab (____ptrval____) to 4 [ 33.539945][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.544932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.544932][ T1] Call Trace: [ 33.544932][ T1] dump_stack+0x172/0x1f0 [ 33.544932][ T1] __schedule+0xd03/0x1580 [ 33.544932][ T1] ? __sched_text_start+0x8/0x8 [ 33.544932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.544932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.544932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.544932][ T1] preempt_schedule+0x4b/0x60 [ 33.544932][ T1] ___preempt_schedule+0x16/0x18 [ 33.544932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.544932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.544932][ T1] link_pwq+0x151/0x2a0 [ 33.544932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.544932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.544932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.544932][ T1] ? cpumask_next+0x41/0x50 [ 33.544932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.544932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.544932][ T1] init_mm_internals+0x24/0x3c9 [ 33.544932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.544932][ T1] ? rest_init+0x37b/0x37b [ 33.544932][ T1] kernel_init+0x12/0x1c5 [ 33.544932][ T1] ret_from_fork+0x24/0x30 [ 33.544963][ T8] mmdrop (____ptrval____) before 4 [ 33.550083][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.554932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.554932][ T8] Call Trace: [ 33.554932][ T8] dump_stack+0x172/0x1f0 [ 33.554932][ T8] finish_task_switch+0x239/0x790 [ 33.554932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.554932][ T8] __schedule+0x7d3/0x1580 [ 33.554932][ T8] ? __sched_text_start+0x8/0x8 [ 33.554932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.554932][ T8] schedule+0xa8/0x260 [ 33.554932][ T8] kthread+0x27a/0x420 [ 33.554932][ T8] ? process_one_work+0x1790/0x1790 [ 33.554932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.554932][ T8] ret_from_fork+0x24/0x30 [ 33.554977][ T8] mmgrab (____ptrval____) to 4 [ 33.560433][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.564932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.564932][ T8] Call Trace: [ 33.564932][ T8] dump_stack+0x172/0x1f0 [ 33.564932][ T8] __schedule+0xd03/0x1580 [ 33.564932][ T8] ? __sched_text_start+0x8/0x8 [ 33.564932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.564932][ T8] schedule+0xa8/0x260 [ 33.564932][ T8] kthread+0x27a/0x420 [ 33.564932][ T8] ? process_one_work+0x1790/0x1790 [ 33.564932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.564932][ T8] ret_from_fork+0x24/0x30 [ 33.564963][ T7] mmdrop (____ptrval____) before 4 [ 33.574983][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.582559][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.584932][ T7] Workqueue: 0x0 (events) [ 33.584932][ T7] Call Trace: [ 33.584932][ T7] dump_stack+0x172/0x1f0 [ 33.584932][ T7] finish_task_switch+0x239/0x790 [ 33.584932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.584932][ T7] __schedule+0x7d3/0x1580 [ 33.584932][ T7] ? __sched_text_start+0x8/0x8 [ 33.584932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.584932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.584932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.584932][ T7] ? kthread_data+0x58/0xc0 [ 33.584932][ T7] schedule+0xa8/0x260 [ 33.584932][ T7] worker_thread+0x248/0xe40 [ 33.584932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.584932][ T7] kthread+0x354/0x420 [ 33.584932][ T7] ? process_one_work+0x1790/0x1790 [ 33.584932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.584932][ T7] ret_from_fork+0x24/0x30 [ 33.584980][ T7] mmgrab (____ptrval____) to 4 [ 33.590386][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.594932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.594932][ T7] Workqueue: 0x0 (events) [ 33.594932][ T7] Call Trace: [ 33.594932][ T7] dump_stack+0x172/0x1f0 [ 33.594932][ T7] __schedule+0xd03/0x1580 [ 33.594932][ T7] ? __sched_text_start+0x8/0x8 [ 33.594932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.594932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.594932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.594932][ T7] ? kthread_data+0x58/0xc0 [ 33.594932][ T7] schedule+0xa8/0x260 [ 33.594932][ T7] worker_thread+0x248/0xe40 [ 33.594932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.594932][ T7] kthread+0x354/0x420 [ 33.594932][ T7] ? process_one_work+0x1790/0x1790 [ 33.594932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.594932][ T7] ret_from_fork+0x24/0x30 [ 33.594964][ T1] mmdrop (____ptrval____) before 4 [ 33.600077][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.604932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.604932][ T1] Call Trace: [ 33.604932][ T1] dump_stack+0x172/0x1f0 [ 33.604932][ T1] finish_task_switch+0x239/0x790 [ 33.604932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.604932][ T1] __schedule+0x7d3/0x1580 [ 33.604932][ T1] ? __sched_text_start+0x8/0x8 [ 33.604932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.604932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.604932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.604932][ T1] preempt_schedule+0x4b/0x60 [ 33.604932][ T1] ___preempt_schedule+0x16/0x18 [ 33.604932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.604932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.604932][ T1] link_pwq+0x151/0x2a0 [ 33.604932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.604932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.604932][ T1] ? cpumask_next+0x41/0x50 [ 33.604932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.604932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.604932][ T1] init_mm_internals+0x24/0x3c9 [ 33.604932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.604932][ T1] ? rest_init+0x37b/0x37b [ 33.604932][ T1] kernel_init+0x12/0x1c5 [ 33.604932][ T1] ret_from_fork+0x24/0x30 [ 33.604992][ T1] mmgrab (____ptrval____) to 4 [ 33.610194][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.614932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.614932][ T1] Call Trace: [ 33.614932][ T1] dump_stack+0x172/0x1f0 [ 33.614932][ T1] __schedule+0xd03/0x1580 [ 33.614932][ T1] ? __sched_text_start+0x8/0x8 [ 33.614932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.614932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.614932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.614932][ T1] preempt_schedule+0x4b/0x60 [ 33.614932][ T1] ___preempt_schedule+0x16/0x18 [ 33.614932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.614932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.614932][ T1] link_pwq+0x151/0x2a0 [ 33.614932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.614932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.614932][ T1] ? cpumask_next+0x41/0x50 [ 33.614932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.614932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.614932][ T1] init_mm_internals+0x24/0x3c9 [ 33.614932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.614932][ T1] ? rest_init+0x37b/0x37b [ 33.614932][ T1] kernel_init+0x12/0x1c5 [ 33.614932][ T1] ret_from_fork+0x24/0x30 [ 33.614962][ T8] mmdrop (____ptrval____) before 4 [ 33.620204][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.624932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.624932][ T8] Call Trace: [ 33.624932][ T8] dump_stack+0x172/0x1f0 [ 33.624932][ T8] finish_task_switch+0x239/0x790 [ 33.624932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.624932][ T8] __schedule+0x7d3/0x1580 [ 33.624932][ T8] ? __sched_text_start+0x8/0x8 [ 33.624932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.624932][ T8] schedule+0xa8/0x260 [ 33.624932][ T8] kthread+0x27a/0x420 [ 33.624932][ T8] ? process_one_work+0x1790/0x1790 [ 33.624932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.624932][ T8] ret_from_fork+0x24/0x30 [ 33.624975][ T8] mmgrab (____ptrval____) to 4 [ 33.630714][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.634932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.634932][ T8] Call Trace: [ 33.634932][ T8] dump_stack+0x172/0x1f0 [ 33.634932][ T8] __schedule+0xd03/0x1580 [ 33.634932][ T8] ? __sched_text_start+0x8/0x8 [ 33.634932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.634932][ T8] schedule+0xa8/0x260 [ 33.634932][ T8] kthread+0x27a/0x420 [ 33.634932][ T8] ? process_one_work+0x1790/0x1790 [ 33.634932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.634932][ T8] ret_from_fork+0x24/0x30 [ 33.634961][ T7] mmdrop (____ptrval____) before 4 [ 33.640164][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.644932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.644932][ T7] Workqueue: 0x0 (events) [ 33.644932][ T7] Call Trace: [ 33.644932][ T7] dump_stack+0x172/0x1f0 [ 33.644932][ T7] finish_task_switch+0x239/0x790 [ 33.644932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.644932][ T7] __schedule+0x7d3/0x1580 [ 33.644932][ T7] ? __sched_text_start+0x8/0x8 [ 33.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.644932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.644932][ T7] ? kthread_data+0x58/0xc0 [ 33.644932][ T7] schedule+0xa8/0x260 [ 33.644932][ T7] worker_thread+0x248/0xe40 [ 33.644932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.644932][ T7] kthread+0x354/0x420 [ 33.644932][ T7] ? process_one_work+0x1790/0x1790 [ 33.644932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.644932][ T7] ret_from_fork+0x24/0x30 [ 33.644975][ T7] mmgrab (____ptrval____) to 4 [ 33.649736][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.654932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.654932][ T7] Workqueue: 0x0 (events) [ 33.654932][ T7] Call Trace: [ 33.654932][ T7] dump_stack+0x172/0x1f0 [ 33.654932][ T7] __schedule+0xd03/0x1580 [ 33.654932][ T7] ? __sched_text_start+0x8/0x8 [ 33.654932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.654932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.654932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.654932][ T7] ? kthread_data+0x58/0xc0 [ 33.654932][ T7] schedule+0xa8/0x260 [ 33.654932][ T7] worker_thread+0x248/0xe40 [ 33.654932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.654932][ T7] kthread+0x354/0x420 [ 33.654932][ T7] ? process_one_work+0x1790/0x1790 [ 33.654932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.654932][ T7] ret_from_fork+0x24/0x30 [ 33.654962][ T1] mmdrop (____ptrval____) before 4 [ 33.660065][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.664932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.664932][ T1] Call Trace: [ 33.664932][ T1] dump_stack+0x172/0x1f0 [ 33.664932][ T1] finish_task_switch+0x239/0x790 [ 33.664932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.664932][ T1] __schedule+0x7d3/0x1580 [ 33.664932][ T1] ? __sched_text_start+0x8/0x8 [ 33.664932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.664932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.664932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.664932][ T1] preempt_schedule+0x4b/0x60 [ 33.664932][ T1] ___preempt_schedule+0x16/0x18 [ 33.664932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.664932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.664932][ T1] link_pwq+0x151/0x2a0 [ 33.664932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.664932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.664932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.664932][ T1] ? cpumask_next+0x41/0x50 [ 33.664932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.664932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.664932][ T1] init_mm_internals+0x24/0x3c9 [ 33.664932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.664932][ T1] ? rest_init+0x37b/0x37b [ 33.664932][ T1] kernel_init+0x12/0x1c5 [ 33.664932][ T1] ret_from_fork+0x24/0x30 [ 33.664975][ T1] mmgrab (____ptrval____) to 4 [ 33.669825][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.674932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.674932][ T1] Call Trace: [ 33.674932][ T1] dump_stack+0x172/0x1f0 [ 33.674932][ T1] __schedule+0xd03/0x1580 [ 33.674932][ T1] ? __sched_text_start+0x8/0x8 [ 33.674932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.674932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.674932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.674932][ T1] preempt_schedule+0x4b/0x60 [ 33.674932][ T1] ___preempt_schedule+0x16/0x18 [ 33.674932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.674932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.674932][ T1] link_pwq+0x151/0x2a0 [ 33.674932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.674932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.674932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.674932][ T1] ? cpumask_next+0x41/0x50 [ 33.674932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.674932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.674932][ T1] init_mm_internals+0x24/0x3c9 [ 33.674932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.674932][ T1] ? rest_init+0x37b/0x37b [ 33.674932][ T1] kernel_init+0x12/0x1c5 [ 33.674932][ T1] ret_from_fork+0x24/0x30 [ 33.674969][ T8] mmdrop (____ptrval____) before 4 [ 33.684971][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.692333][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.694932][ T8] Call Trace: [ 33.694932][ T8] dump_stack+0x172/0x1f0 [ 33.694932][ T8] finish_task_switch+0x239/0x790 [ 33.694932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.694932][ T8] __schedule+0x7d3/0x1580 [ 33.694932][ T8] ? __sched_text_start+0x8/0x8 [ 33.694932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.694932][ T8] schedule+0xa8/0x260 [ 33.694932][ T8] kthread+0x27a/0x420 [ 33.694932][ T8] ? process_one_work+0x1790/0x1790 [ 33.694932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.694932][ T8] ret_from_fork+0x24/0x30 [ 33.694974][ T8] mmgrab (____ptrval____) to 4 [ 33.699731][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.704932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.704932][ T8] Call Trace: [ 33.704932][ T8] dump_stack+0x172/0x1f0 [ 33.704932][ T8] __schedule+0xd03/0x1580 [ 33.704932][ T8] ? __sched_text_start+0x8/0x8 [ 33.704932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.704932][ T8] schedule+0xa8/0x260 [ 33.704932][ T8] kthread+0x27a/0x420 [ 33.704932][ T8] ? process_one_work+0x1790/0x1790 [ 33.704932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.704932][ T8] ret_from_fork+0x24/0x30 [ 33.704961][ T7] mmdrop (____ptrval____) before 4 [ 33.710190][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.714932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.714932][ T7] Workqueue: 0x0 (events) [ 33.714932][ T7] Call Trace: [ 33.714932][ T7] dump_stack+0x172/0x1f0 [ 33.714932][ T7] finish_task_switch+0x239/0x790 [ 33.714932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.714932][ T7] __schedule+0x7d3/0x1580 [ 33.714932][ T7] ? __sched_text_start+0x8/0x8 [ 33.714932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.714932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.714932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.714932][ T7] ? kthread_data+0x58/0xc0 [ 33.714932][ T7] schedule+0xa8/0x260 [ 33.714932][ T7] worker_thread+0x248/0xe40 [ 33.714932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.714932][ T7] kthread+0x354/0x420 [ 33.714932][ T7] ? process_one_work+0x1790/0x1790 [ 33.714932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.714932][ T7] ret_from_fork+0x24/0x30 [ 33.715002][ T7] mmgrab (____ptrval____) to 4 [ 33.719802][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.724932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.724932][ T7] Workqueue: 0x0 (events) [ 33.724932][ T7] Call Trace: [ 33.724932][ T7] dump_stack+0x172/0x1f0 [ 33.724932][ T7] __schedule+0xd03/0x1580 [ 33.724932][ T7] ? __sched_text_start+0x8/0x8 [ 33.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.724932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.724932][ T7] ? kthread_data+0x58/0xc0 [ 33.724932][ T7] schedule+0xa8/0x260 [ 33.724932][ T7] worker_thread+0x248/0xe40 [ 33.724932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.724932][ T7] kthread+0x354/0x420 [ 33.724932][ T7] ? process_one_work+0x1790/0x1790 [ 33.724932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.724932][ T7] ret_from_fork+0x24/0x30 [ 33.724965][ T1] mmdrop (____ptrval____) before 4 [ 33.730203][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.734932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.734932][ T1] Call Trace: [ 33.734932][ T1] dump_stack+0x172/0x1f0 [ 33.734932][ T1] finish_task_switch+0x239/0x790 [ 33.734932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.734932][ T1] __schedule+0x7d3/0x1580 [ 33.734932][ T1] ? __sched_text_start+0x8/0x8 [ 33.734932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.734932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.734932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.734932][ T1] preempt_schedule+0x4b/0x60 [ 33.734932][ T1] ___preempt_schedule+0x16/0x18 [ 33.734932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.734932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.734932][ T1] link_pwq+0x151/0x2a0 [ 33.734932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.734932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.734932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.734932][ T1] ? cpumask_next+0x41/0x50 [ 33.734932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.734932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.734932][ T1] init_mm_internals+0x24/0x3c9 [ 33.734932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.734932][ T1] ? rest_init+0x37b/0x37b [ 33.734932][ T1] kernel_init+0x12/0x1c5 [ 33.734932][ T1] ret_from_fork+0x24/0x30 [ 33.734973][ T1] mmgrab (____ptrval____) to 4 [ 33.739735][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.744932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.744932][ T1] Call Trace: [ 33.744932][ T1] dump_stack+0x172/0x1f0 [ 33.744932][ T1] __schedule+0xd03/0x1580 [ 33.744932][ T1] ? __sched_text_start+0x8/0x8 [ 33.744932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.744932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.744932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.744932][ T1] preempt_schedule+0x4b/0x60 [ 33.744932][ T1] ___preempt_schedule+0x16/0x18 [ 33.744932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.744932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.744932][ T1] link_pwq+0x151/0x2a0 [ 33.744932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.744932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.744932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.744932][ T1] ? cpumask_next+0x41/0x50 [ 33.744932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.744932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.744932][ T1] init_mm_internals+0x24/0x3c9 [ 33.744932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.744932][ T1] ? rest_init+0x37b/0x37b [ 33.744932][ T1] kernel_init+0x12/0x1c5 [ 33.744932][ T1] ret_from_fork+0x24/0x30 [ 33.744975][ T8] mmdrop (____ptrval____) before 4 [ 33.750087][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.754932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.754932][ T8] Call Trace: [ 33.754932][ T8] dump_stack+0x172/0x1f0 [ 33.754932][ T8] finish_task_switch+0x239/0x790 [ 33.754932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.754932][ T8] __schedule+0x7d3/0x1580 [ 33.754932][ T8] ? __sched_text_start+0x8/0x8 [ 33.754932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.754932][ T8] schedule+0xa8/0x260 [ 33.754932][ T8] kthread+0x27a/0x420 [ 33.754932][ T8] ? process_one_work+0x1790/0x1790 [ 33.754932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.754932][ T8] ret_from_fork+0x24/0x30 [ 33.754977][ T8] mmgrab (____ptrval____) to 4 [ 33.759768][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.764932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.764932][ T8] Call Trace: [ 33.764932][ T8] dump_stack+0x172/0x1f0 [ 33.764932][ T8] __schedule+0xd03/0x1580 [ 33.764932][ T8] ? __sched_text_start+0x8/0x8 [ 33.764932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.764932][ T8] schedule+0xa8/0x260 [ 33.764932][ T8] kthread+0x27a/0x420 [ 33.764932][ T8] ? process_one_work+0x1790/0x1790 [ 33.764932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.764932][ T8] ret_from_fork+0x24/0x30 [ 33.764962][ T7] mmdrop (____ptrval____) before 4 [ 33.770065][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.774932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.774932][ T7] Workqueue: 0x0 (events) [ 33.774932][ T7] Call Trace: [ 33.774932][ T7] dump_stack+0x172/0x1f0 [ 33.774932][ T7] finish_task_switch+0x239/0x790 [ 33.774932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.774932][ T7] __schedule+0x7d3/0x1580 [ 33.774932][ T7] ? __sched_text_start+0x8/0x8 [ 33.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.774932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.774932][ T7] ? kthread_data+0x58/0xc0 [ 33.774932][ T7] schedule+0xa8/0x260 [ 33.774932][ T7] worker_thread+0x248/0xe40 [ 33.774932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.774932][ T7] kthread+0x354/0x420 [ 33.774932][ T7] ? process_one_work+0x1790/0x1790 [ 33.774932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.774932][ T7] ret_from_fork+0x24/0x30 [ 33.774973][ T7] mmgrab (____ptrval____) to 4 [ 33.779729][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.784932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.784932][ T7] Workqueue: 0x0 (events) [ 33.784932][ T7] Call Trace: [ 33.784932][ T7] dump_stack+0x172/0x1f0 [ 33.784932][ T7] __schedule+0xd03/0x1580 [ 33.784932][ T7] ? __sched_text_start+0x8/0x8 [ 33.784932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.784932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.784932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.784932][ T7] ? kthread_data+0x58/0xc0 [ 33.784932][ T7] schedule+0xa8/0x260 [ 33.784932][ T7] worker_thread+0x248/0xe40 [ 33.784932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.784932][ T7] kthread+0x354/0x420 [ 33.784932][ T7] ? process_one_work+0x1790/0x1790 [ 33.784932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.784932][ T7] ret_from_fork+0x24/0x30 [ 33.784962][ T1] mmdrop (____ptrval____) before 4 [ 33.790176][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.794932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.794932][ T1] Call Trace: [ 33.794932][ T1] dump_stack+0x172/0x1f0 [ 33.794932][ T1] finish_task_switch+0x239/0x790 [ 33.794932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.794932][ T1] __schedule+0x7d3/0x1580 [ 33.794932][ T1] ? __sched_text_start+0x8/0x8 [ 33.794932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.794932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.794932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.794932][ T1] preempt_schedule+0x4b/0x60 [ 33.794932][ T1] ___preempt_schedule+0x16/0x18 [ 33.794932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.794932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.794932][ T1] link_pwq+0x151/0x2a0 [ 33.794932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.794932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.794932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.794932][ T1] ? cpumask_next+0x41/0x50 [ 33.794932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.794932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.794932][ T1] init_mm_internals+0x24/0x3c9 [ 33.794932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.794932][ T1] ? rest_init+0x37b/0x37b [ 33.794932][ T1] kernel_init+0x12/0x1c5 [ 33.794932][ T1] ret_from_fork+0x24/0x30 [ 33.794974][ T1] mmgrab (____ptrval____) to 4 [ 33.799731][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.804932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.804932][ T1] Call Trace: [ 33.804932][ T1] dump_stack+0x172/0x1f0 [ 33.804932][ T1] __schedule+0xd03/0x1580 [ 33.804932][ T1] ? __sched_text_start+0x8/0x8 [ 33.804932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.804932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.804932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.804932][ T1] preempt_schedule+0x4b/0x60 [ 33.804932][ T1] ___preempt_schedule+0x16/0x18 [ 33.804932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.804932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.804932][ T1] link_pwq+0x151/0x2a0 [ 33.804932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.804932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.804932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.804932][ T1] ? cpumask_next+0x41/0x50 [ 33.804932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.804932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.804932][ T1] init_mm_internals+0x24/0x3c9 [ 33.804932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.804932][ T1] ? rest_init+0x37b/0x37b [ 33.804932][ T1] kernel_init+0x12/0x1c5 [ 33.804932][ T1] ret_from_fork+0x24/0x30 [ 33.804961][ T8] mmdrop (____ptrval____) before 4 [ 33.814963][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.822326][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.824932][ T8] Call Trace: [ 33.824932][ T8] dump_stack+0x172/0x1f0 [ 33.824932][ T8] finish_task_switch+0x239/0x790 [ 33.824932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.824932][ T8] __schedule+0x7d3/0x1580 [ 33.824932][ T8] ? __sched_text_start+0x8/0x8 [ 33.824932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.824932][ T8] schedule+0xa8/0x260 [ 33.824932][ T8] kthread+0x27a/0x420 [ 33.824932][ T8] ? process_one_work+0x1790/0x1790 [ 33.824932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.824932][ T8] ret_from_fork+0x24/0x30 [ 33.824976][ T8] mmgrab (____ptrval____) to 4 [ 33.829742][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.834932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.834932][ T8] Call Trace: [ 33.834932][ T8] dump_stack+0x172/0x1f0 [ 33.834932][ T8] __schedule+0xd03/0x1580 [ 33.834932][ T8] ? __sched_text_start+0x8/0x8 [ 33.834932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.834932][ T8] schedule+0xa8/0x260 [ 33.834932][ T8] kthread+0x27a/0x420 [ 33.834932][ T8] ? process_one_work+0x1790/0x1790 [ 33.834932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.834932][ T8] ret_from_fork+0x24/0x30 [ 33.834962][ T7] mmdrop (____ptrval____) before 4 [ 33.844970][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.852363][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.854932][ T7] Workqueue: 0x0 (events) [ 33.854932][ T7] Call Trace: [ 33.854932][ T7] dump_stack+0x172/0x1f0 [ 33.854932][ T7] finish_task_switch+0x239/0x790 [ 33.854932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.854932][ T7] __schedule+0x7d3/0x1580 [ 33.854932][ T7] ? __sched_text_start+0x8/0x8 [ 33.854932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.854932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.854932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.854932][ T7] ? kthread_data+0x58/0xc0 [ 33.854932][ T7] schedule+0xa8/0x260 [ 33.854932][ T7] worker_thread+0x248/0xe40 [ 33.854932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.854932][ T7] kthread+0x354/0x420 [ 33.854932][ T7] ? process_one_work+0x1790/0x1790 [ 33.854932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.854932][ T7] ret_from_fork+0x24/0x30 [ 33.854974][ T7] mmgrab (____ptrval____) to 4 [ 33.859764][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.864932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.864932][ T7] Workqueue: 0x0 (events) [ 33.864932][ T7] Call Trace: [ 33.864932][ T7] dump_stack+0x172/0x1f0 [ 33.864932][ T7] __schedule+0xd03/0x1580 [ 33.864932][ T7] ? __sched_text_start+0x8/0x8 [ 33.864932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.864932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.864932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.864932][ T7] ? kthread_data+0x58/0xc0 [ 33.864932][ T7] schedule+0xa8/0x260 [ 33.864932][ T7] worker_thread+0x248/0xe40 [ 33.864932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.864932][ T7] kthread+0x354/0x420 [ 33.864932][ T7] ? process_one_work+0x1790/0x1790 [ 33.864932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.864932][ T7] ret_from_fork+0x24/0x30 [ 33.864962][ T1] mmdrop (____ptrval____) before 4 [ 33.870064][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.874932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.874932][ T1] Call Trace: [ 33.874932][ T1] dump_stack+0x172/0x1f0 [ 33.874932][ T1] finish_task_switch+0x239/0x790 [ 33.874932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.874932][ T1] __schedule+0x7d3/0x1580 [ 33.874932][ T1] ? __sched_text_start+0x8/0x8 [ 33.874932][ T1] ? pwq_adjust_max_active+0x3b1/0x5c0 [ 33.874932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.874932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.874932][ T1] preempt_schedule+0x4b/0x60 [ 33.874932][ T1] ___preempt_schedule+0x16/0x18 [ 33.874932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.874932][ T1] pwq_adjust_max_active+0x3b1/0x5c0 [ 33.874932][ T1] link_pwq+0x151/0x2a0 [ 33.874932][ T1] alloc_workqueue+0xb93/0xf00 [ 33.874932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.874932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.874932][ T1] ? cpumask_next+0x41/0x50 [ 33.874932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.874932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.874932][ T1] init_mm_internals+0x24/0x3c9 [ 33.874932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.874932][ T1] ? rest_init+0x37b/0x37b [ 33.874932][ T1] kernel_init+0x12/0x1c5 [ 33.874932][ T1] ret_from_fork+0x24/0x30 [ 33.875076][ T1] mmgrab (____ptrval____) to 4 [ 33.879843][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.884932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.884932][ T1] Call Trace: [ 33.884932][ T1] dump_stack+0x172/0x1f0 [ 33.884932][ T1] __schedule+0xd03/0x1580 [ 33.884932][ T1] ? __sched_text_start+0x8/0x8 [ 33.884932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 33.884932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.884932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.884932][ T1] preempt_schedule+0x4b/0x60 [ 33.884932][ T1] ___preempt_schedule+0x16/0x18 [ 33.884932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.884932][ T1] try_to_wake_up+0xc8/0x13f0 [ 33.884932][ T1] ? migrate_swap_stop+0x920/0x920 [ 33.884932][ T1] ? kasan_check_read+0x11/0x20 [ 33.884932][ T1] wake_up_process+0x10/0x20 [ 33.884932][ T1] __kthread_create_on_node+0x281/0x460 [ 33.884932][ T1] ? kthread_parkme+0xb0/0xb0 [ 33.884932][ T1] ? find_held_lock+0x35/0x130 [ 33.884932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.884932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 33.884932][ T1] kthread_create_on_node+0xbb/0xf0 [ 33.884932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 33.884932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 33.884932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 33.884932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.884932][ T1] init_rescuer.part.0+0x7d/0x190 [ 33.884932][ T1] alloc_workqueue+0x669/0xf00 [ 33.884932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.884932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.884932][ T1] ? cpumask_next+0x41/0x50 [ 33.884932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.884932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.884932][ T1] init_mm_internals+0x24/0x3c9 [ 33.884932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.884932][ T1] ? rest_init+0x37b/0x37b [ 33.884932][ T1] kernel_init+0x12/0x1c5 [ 33.884932][ T1] ret_from_fork+0x24/0x30 [ 33.884961][ T2] mmdrop (____ptrval____) before 4 [ 33.894975][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 33.902002][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.904932][ T2] Call Trace: [ 33.904932][ T2] dump_stack+0x172/0x1f0 [ 33.904932][ T2] finish_task_switch+0x239/0x790 [ 33.904932][ T2] ? dump_stack+0x1de/0x1f0 [ 33.904932][ T2] __schedule+0x7d3/0x1580 [ 33.904932][ T2] ? __sched_text_start+0x8/0x8 [ 33.904932][ T2] schedule+0xa8/0x260 [ 33.904932][ T2] kthreadd+0x5cc/0x740 [ 33.904932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 33.904932][ T2] ? calculate_sigpending+0x87/0xa0 [ 33.904932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 33.904932][ T2] ret_from_fork+0x24/0x30 [ 33.904975][ T2] mmgrab (____ptrval____) to 4 [ 33.909737][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 33.914932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.914932][ T2] Call Trace: [ 33.914932][ T2] dump_stack+0x172/0x1f0 [ 33.914932][ T2] __schedule+0xd03/0x1580 [ 33.914932][ T2] ? __sched_text_start+0x8/0x8 [ 33.914932][ T2] schedule+0xa8/0x260 [ 33.914932][ T2] kthreadd+0x5cc/0x740 [ 33.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 33.914932][ T2] ? calculate_sigpending+0x87/0xa0 [ 33.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 33.914932][ T2] ret_from_fork+0x24/0x30 [ 33.914964][ T1] mmdrop (____ptrval____) before 4 [ 33.920145][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.924932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.924932][ T1] Call Trace: [ 33.924932][ T1] dump_stack+0x172/0x1f0 [ 33.924932][ T1] finish_task_switch+0x239/0x790 [ 33.924932][ T1] ? dump_stack+0x1de/0x1f0 [ 33.924932][ T1] __schedule+0x7d3/0x1580 [ 33.924932][ T1] ? __sched_text_start+0x8/0x8 [ 33.924932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 33.924932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.924932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.924932][ T1] preempt_schedule+0x4b/0x60 [ 33.924932][ T1] ___preempt_schedule+0x16/0x18 [ 33.924932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.924932][ T1] try_to_wake_up+0xc8/0x13f0 [ 33.924932][ T1] ? migrate_swap_stop+0x920/0x920 [ 33.924932][ T1] ? kasan_check_read+0x11/0x20 [ 33.924932][ T1] wake_up_process+0x10/0x20 [ 33.924932][ T1] __kthread_create_on_node+0x281/0x460 [ 33.924932][ T1] ? kthread_parkme+0xb0/0xb0 [ 33.924932][ T1] ? find_held_lock+0x35/0x130 [ 33.924932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.924932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 33.924932][ T1] kthread_create_on_node+0xbb/0xf0 [ 33.924932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 33.924932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 33.924932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 33.924932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.924932][ T1] init_rescuer.part.0+0x7d/0x190 [ 33.924932][ T1] alloc_workqueue+0x669/0xf00 [ 33.924932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.924932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.924932][ T1] ? cpumask_next+0x41/0x50 [ 33.924932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.924932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.924932][ T1] init_mm_internals+0x24/0x3c9 [ 33.924932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.924932][ T1] ? rest_init+0x37b/0x37b [ 33.924932][ T1] kernel_init+0x12/0x1c5 [ 33.924932][ T1] ret_from_fork+0x24/0x30 [ 33.924977][ T1] mmgrab (____ptrval____) to 4 [ 33.929857][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 33.934932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.934932][ T1] Call Trace: [ 33.934932][ T1] dump_stack+0x172/0x1f0 [ 33.934932][ T1] __schedule+0xd03/0x1580 [ 33.934932][ T1] ? __sched_text_start+0x8/0x8 [ 33.934932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 33.934932][ T1] ? preempt_schedule+0x4b/0x60 [ 33.934932][ T1] preempt_schedule_common+0x4f/0xe0 [ 33.934932][ T1] preempt_schedule+0x4b/0x60 [ 33.934932][ T1] ___preempt_schedule+0x16/0x18 [ 33.934932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 33.934932][ T1] try_to_wake_up+0xc8/0x13f0 [ 33.934932][ T1] ? migrate_swap_stop+0x920/0x920 [ 33.934932][ T1] ? kasan_check_read+0x11/0x20 [ 33.934932][ T1] wake_up_process+0x10/0x20 [ 33.934932][ T1] __kthread_create_on_node+0x281/0x460 [ 33.934932][ T1] ? kthread_parkme+0xb0/0xb0 [ 33.934932][ T1] ? find_held_lock+0x35/0x130 [ 33.934932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.934932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 33.934932][ T1] kthread_create_on_node+0xbb/0xf0 [ 33.934932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 33.934932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 33.934932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 33.934932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.934932][ T1] init_rescuer.part.0+0x7d/0x190 [ 33.934932][ T1] alloc_workqueue+0x669/0xf00 [ 33.934932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 33.934932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 33.934932][ T1] ? cpumask_next+0x41/0x50 [ 33.934932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 33.934932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 33.934932][ T1] init_mm_internals+0x24/0x3c9 [ 33.934932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 33.934932][ T1] ? rest_init+0x37b/0x37b [ 33.934932][ T1] kernel_init+0x12/0x1c5 [ 33.934932][ T1] ret_from_fork+0x24/0x30 [ 33.934962][ T8] mmdrop (____ptrval____) before 4 [ 33.940297][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.944932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.944932][ T8] Call Trace: [ 33.944932][ T8] dump_stack+0x172/0x1f0 [ 33.944932][ T8] finish_task_switch+0x239/0x790 [ 33.944932][ T8] ? dump_stack+0x1de/0x1f0 [ 33.944932][ T8] __schedule+0x7d3/0x1580 [ 33.944932][ T8] ? __sched_text_start+0x8/0x8 [ 33.944932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.944932][ T8] schedule+0xa8/0x260 [ 33.944932][ T8] kthread+0x27a/0x420 [ 33.944932][ T8] ? process_one_work+0x1790/0x1790 [ 33.944932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.944932][ T8] ret_from_fork+0x24/0x30 [ 33.944976][ T8] mmgrab (____ptrval____) to 4 [ 33.949739][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 33.954932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.954932][ T8] Call Trace: [ 33.954932][ T8] dump_stack+0x172/0x1f0 [ 33.954932][ T8] __schedule+0xd03/0x1580 [ 33.954932][ T8] ? __sched_text_start+0x8/0x8 [ 33.954932][ T8] ? ___preempt_schedule+0x16/0x18 [ 33.954932][ T8] schedule+0xa8/0x260 [ 33.954932][ T8] kthread+0x27a/0x420 [ 33.954932][ T8] ? process_one_work+0x1790/0x1790 [ 33.954932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.954932][ T8] ret_from_fork+0x24/0x30 [ 33.964949][ T7] mmdrop (____ptrval____) before 4 [ 33.970158][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.974932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.974932][ T7] Workqueue: 0x0 (events) [ 33.974932][ T7] Call Trace: [ 33.974932][ T7] dump_stack+0x172/0x1f0 [ 33.974932][ T7] finish_task_switch+0x239/0x790 [ 33.974932][ T7] ? dump_stack+0x1de/0x1f0 [ 33.974932][ T7] __schedule+0x7d3/0x1580 [ 33.974932][ T7] ? __sched_text_start+0x8/0x8 [ 33.974932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.974932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.974932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.974932][ T7] ? kthread_data+0x58/0xc0 [ 33.974932][ T7] schedule+0xa8/0x260 [ 33.974932][ T7] worker_thread+0x248/0xe40 [ 33.974932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.974932][ T7] kthread+0x354/0x420 [ 33.974932][ T7] ? process_one_work+0x1790/0x1790 [ 33.974932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.974932][ T7] ret_from_fork+0x24/0x30 [ 33.974973][ T7] mmgrab (____ptrval____) to 4 [ 33.979823][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 33.984932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.984932][ T7] Workqueue: 0x0 (events) [ 33.984932][ T7] Call Trace: [ 33.984932][ T7] dump_stack+0x172/0x1f0 [ 33.984932][ T7] __schedule+0xd03/0x1580 [ 33.984932][ T7] ? __sched_text_start+0x8/0x8 [ 33.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 33.984932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.984932][ T7] ? kthread_data+0x58/0xc0 [ 33.984932][ T7] schedule+0xa8/0x260 [ 33.984932][ T7] worker_thread+0x248/0xe40 [ 33.984932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 33.984932][ T7] kthread+0x354/0x420 [ 33.984932][ T7] ? process_one_work+0x1790/0x1790 [ 33.984932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 33.984932][ T7] ret_from_fork+0x24/0x30 [ 33.984961][ T1] mmdrop (____ptrval____) before 4 [ 33.994959][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.002060][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.004932][ T1] Call Trace: [ 34.004932][ T1] dump_stack+0x172/0x1f0 [ 34.004932][ T1] finish_task_switch+0x239/0x790 [ 34.004932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.004932][ T1] __schedule+0x7d3/0x1580 [ 34.004932][ T1] ? __sched_text_start+0x8/0x8 [ 34.004932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.004932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.004932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.004932][ T1] preempt_schedule+0x4b/0x60 [ 34.004932][ T1] ___preempt_schedule+0x16/0x18 [ 34.004932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.004932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.004932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.004932][ T1] ? kasan_check_read+0x11/0x20 [ 34.004932][ T1] wake_up_process+0x10/0x20 [ 34.004932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.004932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.004932][ T1] ? find_held_lock+0x35/0x130 [ 34.004932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.004932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.004932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.004932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.004932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.004932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.004932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.004932][ T1] alloc_workqueue+0x669/0xf00 [ 34.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.004932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.004932][ T1] ? cpumask_next+0x41/0x50 [ 34.004932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.004932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.004932][ T1] init_mm_internals+0x24/0x3c9 [ 34.004932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.004932][ T1] ? rest_init+0x37b/0x37b [ 34.004932][ T1] kernel_init+0x12/0x1c5 [ 34.004932][ T1] ret_from_fork+0x24/0x30 [ 34.004978][ T1] mmgrab (____ptrval____) to 4 [ 34.009737][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.014932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.014932][ T1] Call Trace: [ 34.014932][ T1] dump_stack+0x172/0x1f0 [ 34.014932][ T1] __schedule+0xd03/0x1580 [ 34.014932][ T1] ? __sched_text_start+0x8/0x8 [ 34.014932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.014932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.014932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.014932][ T1] preempt_schedule+0x4b/0x60 [ 34.014932][ T1] ___preempt_schedule+0x16/0x18 [ 34.014932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.014932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.014932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.014932][ T1] ? kasan_check_read+0x11/0x20 [ 34.014932][ T1] wake_up_process+0x10/0x20 [ 34.014932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.014932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.014932][ T1] ? find_held_lock+0x35/0x130 [ 34.014932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.014932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.014932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.014932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.014932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.014932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.014932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.014932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.014932][ T1] alloc_workqueue+0x669/0xf00 [ 34.014932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.014932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.014932][ T1] ? cpumask_next+0x41/0x50 [ 34.014932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.014932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.014932][ T1] init_mm_internals+0x24/0x3c9 [ 34.014932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.014932][ T1] ? rest_init+0x37b/0x37b [ 34.014932][ T1] kernel_init+0x12/0x1c5 [ 34.014932][ T1] ret_from_fork+0x24/0x30 [ 34.014961][ T8] mmdrop (____ptrval____) before 4 [ 34.020140][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.024932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.024932][ T8] Call Trace: [ 34.024932][ T8] dump_stack+0x172/0x1f0 [ 34.024932][ T8] finish_task_switch+0x239/0x790 [ 34.024932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.024932][ T8] __schedule+0x7d3/0x1580 [ 34.024932][ T8] ? __sched_text_start+0x8/0x8 [ 34.024932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.024932][ T8] schedule+0xa8/0x260 [ 34.024932][ T8] kthread+0x27a/0x420 [ 34.024932][ T8] ? process_one_work+0x1790/0x1790 [ 34.024932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.024932][ T8] ret_from_fork+0x24/0x30 [ 34.024973][ T8] mmgrab (____ptrval____) to 4 [ 34.029772][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.034932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.034932][ T8] Call Trace: [ 34.034932][ T8] dump_stack+0x172/0x1f0 [ 34.034932][ T8] __schedule+0xd03/0x1580 [ 34.034932][ T8] ? __sched_text_start+0x8/0x8 [ 34.034932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.034932][ T8] schedule+0xa8/0x260 [ 34.034932][ T8] kthread+0x27a/0x420 [ 34.034932][ T8] ? process_one_work+0x1790/0x1790 [ 34.034932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.034932][ T8] ret_from_fork+0x24/0x30 [ 34.034959][ T2] mmdrop (____ptrval____) before 4 [ 34.044970][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.051977][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.054932][ T2] Call Trace: [ 34.054932][ T2] dump_stack+0x172/0x1f0 [ 34.054932][ T2] finish_task_switch+0x239/0x790 [ 34.054932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.054932][ T2] __schedule+0x7d3/0x1580 [ 34.054932][ T2] ? __sched_text_start+0x8/0x8 [ 34.054932][ T2] schedule+0xa8/0x260 [ 34.054932][ T2] kthreadd+0x5cc/0x740 [ 34.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.054932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.054932][ T2] ret_from_fork+0x24/0x30 [ 34.054975][ T2] mmgrab (____ptrval____) to 4 [ 34.059769][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.064932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.064932][ T2] Call Trace: [ 34.064932][ T2] dump_stack+0x172/0x1f0 [ 34.064932][ T2] __schedule+0xd03/0x1580 [ 34.064932][ T2] ? __sched_text_start+0x8/0x8 [ 34.064932][ T2] schedule+0xa8/0x260 [ 34.064932][ T2] kthreadd+0x5cc/0x740 [ 34.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.064932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.064932][ T2] ret_from_fork+0x24/0x30 [ 34.064961][ T7] mmdrop (____ptrval____) before 4 [ 34.074961][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.082268][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.084932][ T7] Workqueue: 0x0 (events) [ 34.084932][ T7] Call Trace: [ 34.084932][ T7] dump_stack+0x172/0x1f0 [ 34.084932][ T7] finish_task_switch+0x239/0x790 [ 34.084932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.084932][ T7] __schedule+0x7d3/0x1580 [ 34.084932][ T7] ? __sched_text_start+0x8/0x8 [ 34.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.084932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.084932][ T7] ? kthread_data+0x58/0xc0 [ 34.084932][ T7] schedule+0xa8/0x260 [ 34.084932][ T7] worker_thread+0x248/0xe40 [ 34.084932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.084932][ T7] kthread+0x354/0x420 [ 34.084932][ T7] ? process_one_work+0x1790/0x1790 [ 34.084932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.084932][ T7] ret_from_fork+0x24/0x30 [ 34.084973][ T7] mmgrab (____ptrval____) to 4 [ 34.089894][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.094932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.094932][ T7] Workqueue: 0x0 (events) [ 34.094932][ T7] Call Trace: [ 34.094932][ T7] dump_stack+0x172/0x1f0 [ 34.094932][ T7] __schedule+0xd03/0x1580 [ 34.094932][ T7] ? __sched_text_start+0x8/0x8 [ 34.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.094932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.094932][ T7] ? kthread_data+0x58/0xc0 [ 34.094932][ T7] schedule+0xa8/0x260 [ 34.094932][ T7] worker_thread+0x248/0xe40 [ 34.094932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.094932][ T7] kthread+0x354/0x420 [ 34.094932][ T7] ? process_one_work+0x1790/0x1790 [ 34.094932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.094932][ T7] ret_from_fork+0x24/0x30 [ 34.094964][ T8] mmdrop (____ptrval____) before 4 [ 34.100555][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.104932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.104932][ T8] Call Trace: [ 34.104932][ T8] dump_stack+0x172/0x1f0 [ 34.104932][ T8] finish_task_switch+0x239/0x790 [ 34.104932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.104932][ T8] __schedule+0x7d3/0x1580 [ 34.104932][ T8] ? __sched_text_start+0x8/0x8 [ 34.104932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.104932][ T8] schedule+0xa8/0x260 [ 34.104932][ T8] kthread+0x27a/0x420 [ 34.104932][ T8] ? process_one_work+0x1790/0x1790 [ 34.104932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.104932][ T8] ret_from_fork+0x24/0x30 [ 34.104974][ T8] mmgrab (____ptrval____) to 4 [ 34.110018][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.114932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.114932][ T8] Call Trace: [ 34.114932][ T8] dump_stack+0x172/0x1f0 [ 34.114932][ T8] __schedule+0xd03/0x1580 [ 34.114932][ T8] ? __sched_text_start+0x8/0x8 [ 34.114932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.114932][ T8] schedule+0xa8/0x260 [ 34.114932][ T8] kthread+0x27a/0x420 [ 34.114932][ T8] ? process_one_work+0x1790/0x1790 [ 34.114932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.114932][ T8] ret_from_fork+0x24/0x30 [ 34.114962][ T1] mmdrop (____ptrval____) before 4 [ 34.120077][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.124932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.124932][ T1] Call Trace: [ 34.124932][ T1] dump_stack+0x172/0x1f0 [ 34.124932][ T1] finish_task_switch+0x239/0x790 [ 34.124932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.124932][ T1] __schedule+0x7d3/0x1580 [ 34.124932][ T1] ? __sched_text_start+0x8/0x8 [ 34.124932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.124932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.124932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.124932][ T1] preempt_schedule+0x4b/0x60 [ 34.124932][ T1] ___preempt_schedule+0x16/0x18 [ 34.124932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.124932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.124932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.124932][ T1] ? kasan_check_read+0x11/0x20 [ 34.124932][ T1] wake_up_process+0x10/0x20 [ 34.124932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.124932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.124932][ T1] ? find_held_lock+0x35/0x130 [ 34.124932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.124932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.124932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.124932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.124932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.124932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.124932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.124932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.124932][ T1] alloc_workqueue+0x669/0xf00 [ 34.124932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.124932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.124932][ T1] ? cpumask_next+0x41/0x50 [ 34.124932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.124932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.124932][ T1] init_mm_internals+0x24/0x3c9 [ 34.124932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.124932][ T1] ? rest_init+0x37b/0x37b [ 34.124932][ T1] kernel_init+0x12/0x1c5 [ 34.124932][ T1] ret_from_fork+0x24/0x30 [ 34.124977][ T1] mmgrab (____ptrval____) to 4 [ 34.129861][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.134932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.134932][ T1] Call Trace: [ 34.134932][ T1] dump_stack+0x172/0x1f0 [ 34.134932][ T1] __schedule+0xd03/0x1580 [ 34.134932][ T1] ? __sched_text_start+0x8/0x8 [ 34.134932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.134932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.134932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.134932][ T1] preempt_schedule+0x4b/0x60 [ 34.134932][ T1] ___preempt_schedule+0x16/0x18 [ 34.134932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.134932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.134932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.134932][ T1] ? kasan_check_read+0x11/0x20 [ 34.134932][ T1] wake_up_process+0x10/0x20 [ 34.134932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.134932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.134932][ T1] ? find_held_lock+0x35/0x130 [ 34.134932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.134932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.134932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.134932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.134932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.134932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.134932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.134932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.134932][ T1] alloc_workqueue+0x669/0xf00 [ 34.134932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.134932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.134932][ T1] ? cpumask_next+0x41/0x50 [ 34.134932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.134932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.134932][ T1] init_mm_internals+0x24/0x3c9 [ 34.134932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.134932][ T1] ? rest_init+0x37b/0x37b [ 34.134932][ T1] kernel_init+0x12/0x1c5 [ 34.134932][ T1] ret_from_fork+0x24/0x30 [ 34.134963][ T2] mmdrop (____ptrval____) before 4 [ 34.140103][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.144932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.144932][ T2] Call Trace: [ 34.144932][ T2] dump_stack+0x172/0x1f0 [ 34.144932][ T2] finish_task_switch+0x239/0x790 [ 34.144932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.144932][ T2] __schedule+0x7d3/0x1580 [ 34.144932][ T2] ? __sched_text_start+0x8/0x8 [ 34.144932][ T2] schedule+0xa8/0x260 [ 34.144932][ T2] kthreadd+0x5cc/0x740 [ 34.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.144932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.144932][ T2] ret_from_fork+0x24/0x30 [ 34.144977][ T2] mmgrab (____ptrval____) to 4 [ 34.149836][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.154932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.154932][ T2] Call Trace: [ 34.154932][ T2] dump_stack+0x172/0x1f0 [ 34.154932][ T2] __schedule+0xd03/0x1580 [ 34.154932][ T2] ? __sched_text_start+0x8/0x8 [ 34.154932][ T2] schedule+0xa8/0x260 [ 34.154932][ T2] kthreadd+0x5cc/0x740 [ 34.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.154932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.154932][ T2] ret_from_fork+0x24/0x30 [ 34.154970][ T7] mmdrop (____ptrval____) before 4 [ 34.164970][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.172376][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.174932][ T7] Workqueue: 0x0 (events) [ 34.174932][ T7] Call Trace: [ 34.174932][ T7] dump_stack+0x172/0x1f0 [ 34.174932][ T7] finish_task_switch+0x239/0x790 [ 34.174932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.174932][ T7] __schedule+0x7d3/0x1580 [ 34.174932][ T7] ? __sched_text_start+0x8/0x8 [ 34.174932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.174932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.174932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.174932][ T7] ? kthread_data+0x58/0xc0 [ 34.174932][ T7] schedule+0xa8/0x260 [ 34.174932][ T7] worker_thread+0x248/0xe40 [ 34.174932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.174932][ T7] kthread+0x354/0x420 [ 34.174932][ T7] ? process_one_work+0x1790/0x1790 [ 34.174932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.174932][ T7] ret_from_fork+0x24/0x30 [ 34.174982][ T7] mmgrab (____ptrval____) to 4 [ 34.179784][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.184932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.184932][ T7] Workqueue: 0x0 (events) [ 34.184932][ T7] Call Trace: [ 34.184932][ T7] dump_stack+0x172/0x1f0 [ 34.184932][ T7] __schedule+0xd03/0x1580 [ 34.184932][ T7] ? __sched_text_start+0x8/0x8 [ 34.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.184932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.184932][ T7] ? kthread_data+0x58/0xc0 [ 34.184932][ T7] schedule+0xa8/0x260 [ 34.184932][ T7] worker_thread+0x248/0xe40 [ 34.184932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.184932][ T7] kthread+0x354/0x420 [ 34.184932][ T7] ? process_one_work+0x1790/0x1790 [ 34.184932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.184932][ T7] ret_from_fork+0x24/0x30 [ 34.184966][ T8] mmdrop (____ptrval____) before 4 [ 34.190140][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.194932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.194932][ T8] Call Trace: [ 34.194932][ T8] dump_stack+0x172/0x1f0 [ 34.194932][ T8] finish_task_switch+0x239/0x790 [ 34.194932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.194932][ T8] __schedule+0x7d3/0x1580 [ 34.194932][ T8] ? __sched_text_start+0x8/0x8 [ 34.194932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.194932][ T8] schedule+0xa8/0x260 [ 34.194932][ T8] kthread+0x27a/0x420 [ 34.194932][ T8] ? process_one_work+0x1790/0x1790 [ 34.194932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.194932][ T8] ret_from_fork+0x24/0x30 [ 34.194975][ T8] mmgrab (____ptrval____) to 4 [ 34.199938][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.204932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.204932][ T8] Call Trace: [ 34.204932][ T8] dump_stack+0x172/0x1f0 [ 34.204932][ T8] __schedule+0xd03/0x1580 [ 34.204932][ T8] ? __sched_text_start+0x8/0x8 [ 34.204932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.204932][ T8] schedule+0xa8/0x260 [ 34.204932][ T8] kthread+0x27a/0x420 [ 34.204932][ T8] ? process_one_work+0x1790/0x1790 [ 34.204932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.204932][ T8] ret_from_fork+0x24/0x30 [ 34.204961][ T1] mmdrop (____ptrval____) before 4 [ 34.210081][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.214932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.214932][ T1] Call Trace: [ 34.214932][ T1] dump_stack+0x172/0x1f0 [ 34.214932][ T1] finish_task_switch+0x239/0x790 [ 34.214932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.214932][ T1] __schedule+0x7d3/0x1580 [ 34.214932][ T1] ? __sched_text_start+0x8/0x8 [ 34.214932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.214932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.214932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.214932][ T1] preempt_schedule+0x4b/0x60 [ 34.214932][ T1] ___preempt_schedule+0x16/0x18 [ 34.214932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.214932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.214932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.214932][ T1] ? kasan_check_read+0x11/0x20 [ 34.214932][ T1] wake_up_process+0x10/0x20 [ 34.214932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.214932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.214932][ T1] ? find_held_lock+0x35/0x130 [ 34.214932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.214932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.214932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.214932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.214932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.214932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.214932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.214932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.214932][ T1] alloc_workqueue+0x669/0xf00 [ 34.214932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.214932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.214932][ T1] ? cpumask_next+0x41/0x50 [ 34.214932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.214932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.214932][ T1] init_mm_internals+0x24/0x3c9 [ 34.214932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.214932][ T1] ? rest_init+0x37b/0x37b [ 34.214932][ T1] kernel_init+0x12/0x1c5 [ 34.214932][ T1] ret_from_fork+0x24/0x30 [ 34.214975][ T1] mmgrab (____ptrval____) to 4 [ 34.219822][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.224932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.224932][ T1] Call Trace: [ 34.224932][ T1] dump_stack+0x172/0x1f0 [ 34.224932][ T1] __schedule+0xd03/0x1580 [ 34.224932][ T1] ? __sched_text_start+0x8/0x8 [ 34.224932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.224932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.224932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.224932][ T1] preempt_schedule+0x4b/0x60 [ 34.224932][ T1] ___preempt_schedule+0x16/0x18 [ 34.224932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.224932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.224932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.224932][ T1] ? kasan_check_read+0x11/0x20 [ 34.224932][ T1] wake_up_process+0x10/0x20 [ 34.224932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.224932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.224932][ T1] ? find_held_lock+0x35/0x130 [ 34.224932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.224932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.224932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.224932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.224932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.224932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.224932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.224932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.224932][ T1] alloc_workqueue+0x669/0xf00 [ 34.224932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.224932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.224932][ T1] ? cpumask_next+0x41/0x50 [ 34.224932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.224932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.224932][ T1] init_mm_internals+0x24/0x3c9 [ 34.224932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.224932][ T1] ? rest_init+0x37b/0x37b [ 34.224932][ T1] kernel_init+0x12/0x1c5 [ 34.224932][ T1] ret_from_fork+0x24/0x30 [ 34.224962][ T2] mmdrop (____ptrval____) before 4 [ 34.230125][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.234932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.234932][ T2] Call Trace: [ 34.234932][ T2] dump_stack+0x172/0x1f0 [ 34.234932][ T2] finish_task_switch+0x239/0x790 [ 34.234932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.234932][ T2] __schedule+0x7d3/0x1580 [ 34.234932][ T2] ? __sched_text_start+0x8/0x8 [ 34.234932][ T2] schedule+0xa8/0x260 [ 34.234932][ T2] kthreadd+0x5cc/0x740 [ 34.234932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.234932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.234932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.234932][ T2] ret_from_fork+0x24/0x30 [ 34.234976][ T2] mmgrab (____ptrval____) to 4 [ 34.239981][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.244932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.244932][ T2] Call Trace: [ 34.244932][ T2] dump_stack+0x172/0x1f0 [ 34.244932][ T2] __schedule+0xd03/0x1580 [ 34.244932][ T2] ? __sched_text_start+0x8/0x8 [ 34.244932][ T2] schedule+0xa8/0x260 [ 34.244932][ T2] kthreadd+0x5cc/0x740 [ 34.244932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.244932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.244932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.244932][ T2] ret_from_fork+0x24/0x30 [ 34.244980][ T7] mmdrop (____ptrval____) before 4 [ 34.250210][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.254932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.254932][ T7] Workqueue: 0x0 (events) [ 34.254932][ T7] Call Trace: [ 34.254932][ T7] dump_stack+0x172/0x1f0 [ 34.254932][ T7] finish_task_switch+0x239/0x790 [ 34.254932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.254932][ T7] __schedule+0x7d3/0x1580 [ 34.254932][ T7] ? __sched_text_start+0x8/0x8 [ 34.254932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.254932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.254932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.254932][ T7] ? kthread_data+0x58/0xc0 [ 34.254932][ T7] schedule+0xa8/0x260 [ 34.254932][ T7] worker_thread+0x248/0xe40 [ 34.254932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.254932][ T7] kthread+0x354/0x420 [ 34.254932][ T7] ? process_one_work+0x1790/0x1790 [ 34.254932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.254932][ T7] ret_from_fork+0x24/0x30 [ 34.254977][ T7] mmgrab (____ptrval____) to 4 [ 34.259996][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.264932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.264932][ T7] Workqueue: 0x0 (events) [ 34.264932][ T7] Call Trace: [ 34.264932][ T7] dump_stack+0x172/0x1f0 [ 34.264932][ T7] __schedule+0xd03/0x1580 [ 34.264932][ T7] ? __sched_text_start+0x8/0x8 [ 34.264932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.264932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.264932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.264932][ T7] ? kthread_data+0x58/0xc0 [ 34.264932][ T7] schedule+0xa8/0x260 [ 34.264932][ T7] worker_thread+0x248/0xe40 [ 34.264932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.264932][ T7] kthread+0x354/0x420 [ 34.264932][ T7] ? process_one_work+0x1790/0x1790 [ 34.264932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.264932][ T7] ret_from_fork+0x24/0x30 [ 34.264963][ T8] mmdrop (____ptrval____) before 4 [ 34.270112][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.274932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.274932][ T8] Call Trace: [ 34.274932][ T8] dump_stack+0x172/0x1f0 [ 34.274932][ T8] finish_task_switch+0x239/0x790 [ 34.274932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.274932][ T8] __schedule+0x7d3/0x1580 [ 34.274932][ T8] ? __sched_text_start+0x8/0x8 [ 34.274932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.274932][ T8] schedule+0xa8/0x260 [ 34.274932][ T8] kthread+0x27a/0x420 [ 34.274932][ T8] ? process_one_work+0x1790/0x1790 [ 34.274932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.274932][ T8] ret_from_fork+0x24/0x30 [ 34.274984][ T8] mmgrab (____ptrval____) to 4 [ 34.279761][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.284932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.284932][ T8] Call Trace: [ 34.284932][ T8] dump_stack+0x172/0x1f0 [ 34.284932][ T8] __schedule+0xd03/0x1580 [ 34.284932][ T8] ? __sched_text_start+0x8/0x8 [ 34.284932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.284932][ T8] schedule+0xa8/0x260 [ 34.284932][ T8] kthread+0x27a/0x420 [ 34.284932][ T8] ? process_one_work+0x1790/0x1790 [ 34.284932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.284932][ T8] ret_from_fork+0x24/0x30 [ 34.284965][ T1] mmdrop (____ptrval____) before 4 [ 34.290079][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.294932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.294932][ T1] Call Trace: [ 34.294932][ T1] dump_stack+0x172/0x1f0 [ 34.294932][ T1] finish_task_switch+0x239/0x790 [ 34.294932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.294932][ T1] __schedule+0x7d3/0x1580 [ 34.294932][ T1] ? __sched_text_start+0x8/0x8 [ 34.294932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.294932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.294932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.294932][ T1] preempt_schedule+0x4b/0x60 [ 34.294932][ T1] ___preempt_schedule+0x16/0x18 [ 34.294932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.294932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.294932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.294932][ T1] ? kasan_check_read+0x11/0x20 [ 34.294932][ T1] wake_up_process+0x10/0x20 [ 34.294932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.294932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.294932][ T1] ? find_held_lock+0x35/0x130 [ 34.294932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.294932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.294932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.294932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.294932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.294932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.294932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.294932][ T1] alloc_workqueue+0x669/0xf00 [ 34.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.294932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.294932][ T1] ? cpumask_next+0x41/0x50 [ 34.294932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.294932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.294932][ T1] init_mm_internals+0x24/0x3c9 [ 34.294932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.294932][ T1] ? rest_init+0x37b/0x37b [ 34.294932][ T1] kernel_init+0x12/0x1c5 [ 34.294932][ T1] ret_from_fork+0x24/0x30 [ 34.294974][ T1] mmgrab (____ptrval____) to 4 [ 34.299864][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.304932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.304932][ T1] Call Trace: [ 34.304932][ T1] dump_stack+0x172/0x1f0 [ 34.304932][ T1] __schedule+0xd03/0x1580 [ 34.304932][ T1] ? __sched_text_start+0x8/0x8 [ 34.304932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.304932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.304932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.304932][ T1] preempt_schedule+0x4b/0x60 [ 34.304932][ T1] ___preempt_schedule+0x16/0x18 [ 34.304932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.304932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.304932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.304932][ T1] ? kasan_check_read+0x11/0x20 [ 34.304932][ T1] wake_up_process+0x10/0x20 [ 34.304932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.304932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.304932][ T1] ? find_held_lock+0x35/0x130 [ 34.304932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.304932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.304932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.304932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.304932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.304932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.304932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.304932][ T1] alloc_workqueue+0x669/0xf00 [ 34.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.304932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.304932][ T1] ? cpumask_next+0x41/0x50 [ 34.304932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.304932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.304932][ T1] init_mm_internals+0x24/0x3c9 [ 34.304932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.304932][ T1] ? rest_init+0x37b/0x37b [ 34.304932][ T1] kernel_init+0x12/0x1c5 [ 34.304932][ T1] ret_from_fork+0x24/0x30 [ 34.304962][ T2] mmdrop (____ptrval____) before 4 [ 34.314969][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.321991][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.324932][ T2] Call Trace: [ 34.324932][ T2] dump_stack+0x172/0x1f0 [ 34.324932][ T2] finish_task_switch+0x239/0x790 [ 34.324932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.324932][ T2] __schedule+0x7d3/0x1580 [ 34.324932][ T2] ? __sched_text_start+0x8/0x8 [ 34.324932][ T2] schedule+0xa8/0x260 [ 34.324932][ T2] kthreadd+0x5cc/0x740 [ 34.324932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.324932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.324932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.324932][ T2] ret_from_fork+0x24/0x30 [ 34.324975][ T2] mmgrab (____ptrval____) to 4 [ 34.330098][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.334932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.334932][ T2] Call Trace: [ 34.334932][ T2] dump_stack+0x172/0x1f0 [ 34.334932][ T2] __schedule+0xd03/0x1580 [ 34.334932][ T2] ? __sched_text_start+0x8/0x8 [ 34.334932][ T2] schedule+0xa8/0x260 [ 34.334932][ T2] kthreadd+0x5cc/0x740 [ 34.334932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.334932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.334932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.334932][ T2] ret_from_fork+0x24/0x30 [ 34.334972][ T7] mmdrop (____ptrval____) before 4 [ 34.340339][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.344932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.344932][ T7] Workqueue: 0x0 (events) [ 34.344932][ T7] Call Trace: [ 34.344932][ T7] dump_stack+0x172/0x1f0 [ 34.344932][ T7] finish_task_switch+0x239/0x790 [ 34.344932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.344932][ T7] __schedule+0x7d3/0x1580 [ 34.344932][ T7] ? __sched_text_start+0x8/0x8 [ 34.344932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.344932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.344932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.344932][ T7] ? kthread_data+0x58/0xc0 [ 34.344932][ T7] schedule+0xa8/0x260 [ 34.344932][ T7] worker_thread+0x248/0xe40 [ 34.344932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.344932][ T7] kthread+0x354/0x420 [ 34.344932][ T7] ? process_one_work+0x1790/0x1790 [ 34.344932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.344932][ T7] ret_from_fork+0x24/0x30 [ 34.344974][ T7] mmgrab (____ptrval____) to 4 [ 34.349780][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.354932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.354932][ T7] Workqueue: 0x0 (events) [ 34.354932][ T7] Call Trace: [ 34.354932][ T7] dump_stack+0x172/0x1f0 [ 34.354932][ T7] __schedule+0xd03/0x1580 [ 34.354932][ T7] ? __sched_text_start+0x8/0x8 [ 34.354932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.354932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.354932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.354932][ T7] ? kthread_data+0x58/0xc0 [ 34.354932][ T7] schedule+0xa8/0x260 [ 34.354932][ T7] worker_thread+0x248/0xe40 [ 34.354932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.354932][ T7] kthread+0x354/0x420 [ 34.354932][ T7] ? process_one_work+0x1790/0x1790 [ 34.354932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.354932][ T7] ret_from_fork+0x24/0x30 [ 34.354961][ T8] mmdrop (____ptrval____) before 4 [ 34.360070][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.364932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.364932][ T8] Call Trace: [ 34.364932][ T8] dump_stack+0x172/0x1f0 [ 34.364932][ T8] finish_task_switch+0x239/0x790 [ 34.364932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.364932][ T8] __schedule+0x7d3/0x1580 [ 34.364932][ T8] ? __sched_text_start+0x8/0x8 [ 34.364932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.364932][ T8] schedule+0xa8/0x260 [ 34.364932][ T8] kthread+0x27a/0x420 [ 34.364932][ T8] ? process_one_work+0x1790/0x1790 [ 34.364932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.364932][ T8] ret_from_fork+0x24/0x30 [ 34.364975][ T8] mmgrab (____ptrval____) to 4 [ 34.369738][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.374932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.374932][ T8] Call Trace: [ 34.374932][ T8] dump_stack+0x172/0x1f0 [ 34.374932][ T8] __schedule+0xd03/0x1580 [ 34.374932][ T8] ? __sched_text_start+0x8/0x8 [ 34.374932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.374932][ T8] schedule+0xa8/0x260 [ 34.374932][ T8] kthread+0x27a/0x420 [ 34.374932][ T8] ? process_one_work+0x1790/0x1790 [ 34.374932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.374932][ T8] ret_from_fork+0x24/0x30 [ 34.374961][ T1] mmdrop (____ptrval____) before 4 [ 34.380463][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.384932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.384932][ T1] Call Trace: [ 34.384932][ T1] dump_stack+0x172/0x1f0 [ 34.384932][ T1] finish_task_switch+0x239/0x790 [ 34.384932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.384932][ T1] __schedule+0x7d3/0x1580 [ 34.384932][ T1] ? __sched_text_start+0x8/0x8 [ 34.384932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.384932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.384932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.384932][ T1] preempt_schedule+0x4b/0x60 [ 34.384932][ T1] ___preempt_schedule+0x16/0x18 [ 34.384932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.384932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.384932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.384932][ T1] ? kasan_check_read+0x11/0x20 [ 34.384932][ T1] wake_up_process+0x10/0x20 [ 34.384932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.384932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.384932][ T1] ? find_held_lock+0x35/0x130 [ 34.384932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.384932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.384932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.384932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.384932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.384932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.384932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.384932][ T1] alloc_workqueue+0x669/0xf00 [ 34.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.384932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.384932][ T1] ? cpumask_next+0x41/0x50 [ 34.384932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.384932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.384932][ T1] init_mm_internals+0x24/0x3c9 [ 34.384932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.384932][ T1] ? rest_init+0x37b/0x37b [ 34.384932][ T1] kernel_init+0x12/0x1c5 [ 34.384932][ T1] ret_from_fork+0x24/0x30 [ 34.384975][ T1] mmgrab (____ptrval____) to 4 [ 34.389739][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.394932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.394932][ T1] Call Trace: [ 34.394932][ T1] dump_stack+0x172/0x1f0 [ 34.394932][ T1] __schedule+0xd03/0x1580 [ 34.394932][ T1] ? __sched_text_start+0x8/0x8 [ 34.394932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.394932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.394932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.394932][ T1] preempt_schedule+0x4b/0x60 [ 34.394932][ T1] ___preempt_schedule+0x16/0x18 [ 34.394932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.394932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.394932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.394932][ T1] ? kasan_check_read+0x11/0x20 [ 34.394932][ T1] wake_up_process+0x10/0x20 [ 34.394932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.394932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.394932][ T1] ? find_held_lock+0x35/0x130 [ 34.394932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.394932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.394932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.394932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.394932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.394932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.394932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.394932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.394932][ T1] alloc_workqueue+0x669/0xf00 [ 34.394932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.394932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.394932][ T1] ? cpumask_next+0x41/0x50 [ 34.394932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.394932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.394932][ T1] init_mm_internals+0x24/0x3c9 [ 34.394932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.394932][ T1] ? rest_init+0x37b/0x37b [ 34.394932][ T1] kernel_init+0x12/0x1c5 [ 34.394932][ T1] ret_from_fork+0x24/0x30 [ 34.394965][ T2] mmdrop (____ptrval____) before 4 [ 34.404968][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.412104][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.414932][ T2] Call Trace: [ 34.414932][ T2] dump_stack+0x172/0x1f0 [ 34.414932][ T2] finish_task_switch+0x239/0x790 [ 34.414932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.414932][ T2] __schedule+0x7d3/0x1580 [ 34.414932][ T2] ? __sched_text_start+0x8/0x8 [ 34.414932][ T2] schedule+0xa8/0x260 [ 34.414932][ T2] kthreadd+0x5cc/0x740 [ 34.414932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.414932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.414932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.414932][ T2] ret_from_fork+0x24/0x30 [ 34.414976][ T2] mmgrab (____ptrval____) to 4 [ 34.419811][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.424932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.424932][ T2] Call Trace: [ 34.424932][ T2] dump_stack+0x172/0x1f0 [ 34.424932][ T2] __schedule+0xd03/0x1580 [ 34.424932][ T2] ? __sched_text_start+0x8/0x8 [ 34.424932][ T2] schedule+0xa8/0x260 [ 34.424932][ T2] kthreadd+0x5cc/0x740 [ 34.424932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.424932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.424932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.424932][ T2] ret_from_fork+0x24/0x30 [ 34.424963][ T7] mmdrop (____ptrval____) before 4 [ 34.430070][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.434932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.434932][ T7] Workqueue: 0x0 (events) [ 34.434932][ T7] Call Trace: [ 34.434932][ T7] dump_stack+0x172/0x1f0 [ 34.434932][ T7] finish_task_switch+0x239/0x790 [ 34.434932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.434932][ T7] __schedule+0x7d3/0x1580 [ 34.434932][ T7] ? __sched_text_start+0x8/0x8 [ 34.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.434932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.434932][ T7] ? kthread_data+0x58/0xc0 [ 34.434932][ T7] schedule+0xa8/0x260 [ 34.434932][ T7] worker_thread+0x248/0xe40 [ 34.434932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.434932][ T7] kthread+0x354/0x420 [ 34.434932][ T7] ? process_one_work+0x1790/0x1790 [ 34.434932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.434932][ T7] ret_from_fork+0x24/0x30 [ 34.434976][ T7] mmgrab (____ptrval____) to 4 [ 34.439874][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.444932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.444932][ T7] Workqueue: 0x0 (events) [ 34.444932][ T7] Call Trace: [ 34.444932][ T7] dump_stack+0x172/0x1f0 [ 34.444932][ T7] __schedule+0xd03/0x1580 [ 34.444932][ T7] ? __sched_text_start+0x8/0x8 [ 34.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.444932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.444932][ T7] ? kthread_data+0x58/0xc0 [ 34.444932][ T7] schedule+0xa8/0x260 [ 34.444932][ T7] worker_thread+0x248/0xe40 [ 34.444932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.444932][ T7] kthread+0x354/0x420 [ 34.444932][ T7] ? process_one_work+0x1790/0x1790 [ 34.444932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.444932][ T7] ret_from_fork+0x24/0x30 [ 34.444992][ T8] mmdrop (____ptrval____) before 4 [ 34.450130][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.454932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.454932][ T8] Call Trace: [ 34.454932][ T8] dump_stack+0x172/0x1f0 [ 34.454932][ T8] finish_task_switch+0x239/0x790 [ 34.454932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.454932][ T8] __schedule+0x7d3/0x1580 [ 34.454932][ T8] ? __sched_text_start+0x8/0x8 [ 34.454932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.454932][ T8] schedule+0xa8/0x260 [ 34.454932][ T8] kthread+0x27a/0x420 [ 34.454932][ T8] ? process_one_work+0x1790/0x1790 [ 34.454932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.454932][ T8] ret_from_fork+0x24/0x30 [ 34.454977][ T8] mmgrab (____ptrval____) to 4 [ 34.459755][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.464932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.464932][ T8] Call Trace: [ 34.464932][ T8] dump_stack+0x172/0x1f0 [ 34.464932][ T8] __schedule+0xd03/0x1580 [ 34.464932][ T8] ? __sched_text_start+0x8/0x8 [ 34.464932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.464932][ T8] schedule+0xa8/0x260 [ 34.464932][ T8] kthread+0x27a/0x420 [ 34.464932][ T8] ? process_one_work+0x1790/0x1790 [ 34.464932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.464932][ T8] ret_from_fork+0x24/0x30 [ 34.474952][ T1] mmdrop (____ptrval____) before 4 [ 34.480172][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.484932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.484932][ T1] Call Trace: [ 34.484932][ T1] dump_stack+0x172/0x1f0 [ 34.484932][ T1] finish_task_switch+0x239/0x790 [ 34.484932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.484932][ T1] __schedule+0x7d3/0x1580 [ 34.484932][ T1] ? __sched_text_start+0x8/0x8 [ 34.484932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.484932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.484932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.484932][ T1] preempt_schedule+0x4b/0x60 [ 34.484932][ T1] ___preempt_schedule+0x16/0x18 [ 34.484932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.484932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.484932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.484932][ T1] ? kasan_check_read+0x11/0x20 [ 34.484932][ T1] wake_up_process+0x10/0x20 [ 34.484932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.484932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.484932][ T1] ? find_held_lock+0x35/0x130 [ 34.484932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.484932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.484932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.484932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.484932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.484932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.484932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.484932][ T1] alloc_workqueue+0x669/0xf00 [ 34.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.484932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.484932][ T1] ? cpumask_next+0x41/0x50 [ 34.484932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.484932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.484932][ T1] init_mm_internals+0x24/0x3c9 [ 34.484932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.484932][ T1] ? rest_init+0x37b/0x37b [ 34.484932][ T1] kernel_init+0x12/0x1c5 [ 34.484932][ T1] ret_from_fork+0x24/0x30 [ 34.484982][ T1] mmgrab (____ptrval____) to 4 [ 34.489872][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.494932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.494932][ T1] Call Trace: [ 34.494932][ T1] dump_stack+0x172/0x1f0 [ 34.494932][ T1] __schedule+0xd03/0x1580 [ 34.494932][ T1] ? __sched_text_start+0x8/0x8 [ 34.494932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.494932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.494932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.494932][ T1] preempt_schedule+0x4b/0x60 [ 34.494932][ T1] ___preempt_schedule+0x16/0x18 [ 34.494932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.494932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.494932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.494932][ T1] ? kasan_check_read+0x11/0x20 [ 34.494932][ T1] wake_up_process+0x10/0x20 [ 34.494932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.494932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.494932][ T1] ? find_held_lock+0x35/0x130 [ 34.494932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.494932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.494932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.494932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.494932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.494932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.494932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.494932][ T1] alloc_workqueue+0x669/0xf00 [ 34.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.494932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.494932][ T1] ? cpumask_next+0x41/0x50 [ 34.494932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.494932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.494932][ T1] init_mm_internals+0x24/0x3c9 [ 34.494932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.494932][ T1] ? rest_init+0x37b/0x37b [ 34.494932][ T1] kernel_init+0x12/0x1c5 [ 34.494932][ T1] ret_from_fork+0x24/0x30 [ 34.494964][ T7] mmdrop (____ptrval____) before 4 [ 34.500311][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.504932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.504932][ T7] Workqueue: 0x0 (events) [ 34.504932][ T7] Call Trace: [ 34.504932][ T7] dump_stack+0x172/0x1f0 [ 34.504932][ T7] finish_task_switch+0x239/0x790 [ 34.504932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.504932][ T7] __schedule+0x7d3/0x1580 [ 34.504932][ T7] ? __sched_text_start+0x8/0x8 [ 34.504932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.504932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.504932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.504932][ T7] ? kthread_data+0x58/0xc0 [ 34.504932][ T7] schedule+0xa8/0x260 [ 34.504932][ T7] worker_thread+0x248/0xe40 [ 34.504932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.504932][ T7] kthread+0x354/0x420 [ 34.504932][ T7] ? process_one_work+0x1790/0x1790 [ 34.504932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.504932][ T7] ret_from_fork+0x24/0x30 [ 34.504976][ T7] mmgrab (____ptrval____) to 4 [ 34.509749][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.514932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.514932][ T7] Workqueue: 0x0 (events) [ 34.514932][ T7] Call Trace: [ 34.514932][ T7] dump_stack+0x172/0x1f0 [ 34.514932][ T7] __schedule+0xd03/0x1580 [ 34.514932][ T7] ? __sched_text_start+0x8/0x8 [ 34.514932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.514932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.514932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.514932][ T7] ? kthread_data+0x58/0xc0 [ 34.514932][ T7] schedule+0xa8/0x260 [ 34.514932][ T7] worker_thread+0x248/0xe40 [ 34.514932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.514932][ T7] kthread+0x354/0x420 [ 34.514932][ T7] ? process_one_work+0x1790/0x1790 [ 34.514932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.514932][ T7] ret_from_fork+0x24/0x30 [ 34.514965][ T2] mmdrop (____ptrval____) before 4 [ 34.520074][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.524932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.524932][ T2] Call Trace: [ 34.524932][ T2] dump_stack+0x172/0x1f0 [ 34.524932][ T2] finish_task_switch+0x239/0x790 [ 34.524932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.524932][ T2] __schedule+0x7d3/0x1580 [ 34.524932][ T2] ? __sched_text_start+0x8/0x8 [ 34.524932][ T2] schedule+0xa8/0x260 [ 34.524932][ T2] kthreadd+0x5cc/0x740 [ 34.524932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.524932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.524932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.524932][ T2] ret_from_fork+0x24/0x30 [ 34.524977][ T2] mmgrab (____ptrval____) to 4 [ 34.529889][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.534932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.534932][ T2] Call Trace: [ 34.534932][ T2] dump_stack+0x172/0x1f0 [ 34.534932][ T2] __schedule+0xd03/0x1580 [ 34.534932][ T2] ? __sched_text_start+0x8/0x8 [ 34.534932][ T2] schedule+0xa8/0x260 [ 34.534932][ T2] kthreadd+0x5cc/0x740 [ 34.534932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.534932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.534932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.534932][ T2] ret_from_fork+0x24/0x30 [ 34.534963][ T8] mmdrop (____ptrval____) before 4 [ 34.540186][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.544932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.544932][ T8] Call Trace: [ 34.544932][ T8] dump_stack+0x172/0x1f0 [ 34.544932][ T8] finish_task_switch+0x239/0x790 [ 34.544932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.544932][ T8] __schedule+0x7d3/0x1580 [ 34.544932][ T8] ? __sched_text_start+0x8/0x8 [ 34.544932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.544932][ T8] schedule+0xa8/0x260 [ 34.544932][ T8] kthread+0x27a/0x420 [ 34.544932][ T8] ? process_one_work+0x1790/0x1790 [ 34.544932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.544932][ T8] ret_from_fork+0x24/0x30 [ 34.544996][ T8] mmgrab (____ptrval____) to 4 [ 34.549786][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.554932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.554932][ T8] Call Trace: [ 34.554932][ T8] dump_stack+0x172/0x1f0 [ 34.554932][ T8] __schedule+0xd03/0x1580 [ 34.554932][ T8] ? __sched_text_start+0x8/0x8 [ 34.554932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.554932][ T8] schedule+0xa8/0x260 [ 34.554932][ T8] kthread+0x27a/0x420 [ 34.554932][ T8] ? process_one_work+0x1790/0x1790 [ 34.554932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.554932][ T8] ret_from_fork+0x24/0x30 [ 34.554962][ T1] mmdrop (____ptrval____) before 4 [ 34.560369][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.564932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.564932][ T1] Call Trace: [ 34.564932][ T1] dump_stack+0x172/0x1f0 [ 34.564932][ T1] finish_task_switch+0x239/0x790 [ 34.564932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.564932][ T1] __schedule+0x7d3/0x1580 [ 34.564932][ T1] ? __sched_text_start+0x8/0x8 [ 34.564932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.564932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.564932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.564932][ T1] preempt_schedule+0x4b/0x60 [ 34.564932][ T1] ___preempt_schedule+0x16/0x18 [ 34.564932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.564932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.564932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.564932][ T1] ? kasan_check_read+0x11/0x20 [ 34.564932][ T1] wake_up_process+0x10/0x20 [ 34.564932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.564932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.564932][ T1] ? find_held_lock+0x35/0x130 [ 34.564932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.564932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.564932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.564932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.564932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.564932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.564932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.564932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.564932][ T1] alloc_workqueue+0x669/0xf00 [ 34.564932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.564932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.564932][ T1] ? cpumask_next+0x41/0x50 [ 34.564932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.564932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.564932][ T1] init_mm_internals+0x24/0x3c9 [ 34.564932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.564932][ T1] ? rest_init+0x37b/0x37b [ 34.564932][ T1] kernel_init+0x12/0x1c5 [ 34.564932][ T1] ret_from_fork+0x24/0x30 [ 34.564977][ T1] mmgrab (____ptrval____) to 4 [ 34.569741][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.574932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.574932][ T1] Call Trace: [ 34.574932][ T1] dump_stack+0x172/0x1f0 [ 34.574932][ T1] __schedule+0xd03/0x1580 [ 34.574932][ T1] ? __sched_text_start+0x8/0x8 [ 34.574932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.574932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.574932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.574932][ T1] preempt_schedule+0x4b/0x60 [ 34.574932][ T1] ___preempt_schedule+0x16/0x18 [ 34.574932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.574932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.574932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.574932][ T1] ? kasan_check_read+0x11/0x20 [ 34.574932][ T1] wake_up_process+0x10/0x20 [ 34.574932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.574932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.574932][ T1] ? find_held_lock+0x35/0x130 [ 34.574932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.574932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.574932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.574932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.574932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.574932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.574932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.574932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.574932][ T1] alloc_workqueue+0x669/0xf00 [ 34.574932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.574932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.574932][ T1] ? cpumask_next+0x41/0x50 [ 34.574932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.574932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.574932][ T1] init_mm_internals+0x24/0x3c9 [ 34.574932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.574932][ T1] ? rest_init+0x37b/0x37b [ 34.574932][ T1] kernel_init+0x12/0x1c5 [ 34.574932][ T1] ret_from_fork+0x24/0x30 [ 34.574963][ T7] mmdrop (____ptrval____) before 4 [ 34.580103][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.584932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.584932][ T7] Workqueue: 0x0 (events) [ 34.584932][ T7] Call Trace: [ 34.584932][ T7] dump_stack+0x172/0x1f0 [ 34.584932][ T7] finish_task_switch+0x239/0x790 [ 34.584932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.584932][ T7] __schedule+0x7d3/0x1580 [ 34.584932][ T7] ? __sched_text_start+0x8/0x8 [ 34.584932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.584932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.584932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.584932][ T7] ? kthread_data+0x58/0xc0 [ 34.584932][ T7] schedule+0xa8/0x260 [ 34.584932][ T7] worker_thread+0x248/0xe40 [ 34.584932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.584932][ T7] kthread+0x354/0x420 [ 34.584932][ T7] ? process_one_work+0x1790/0x1790 [ 34.584932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.584932][ T7] ret_from_fork+0x24/0x30 [ 34.584977][ T7] mmgrab (____ptrval____) to 4 [ 34.589752][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.594932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.594932][ T7] Workqueue: 0x0 (events) [ 34.594932][ T7] Call Trace: [ 34.594932][ T7] dump_stack+0x172/0x1f0 [ 34.594932][ T7] __schedule+0xd03/0x1580 [ 34.594932][ T7] ? __sched_text_start+0x8/0x8 [ 34.594932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.594932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.594932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.594932][ T7] ? kthread_data+0x58/0xc0 [ 34.594932][ T7] schedule+0xa8/0x260 [ 34.594932][ T7] worker_thread+0x248/0xe40 [ 34.594932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.594932][ T7] kthread+0x354/0x420 [ 34.594932][ T7] ? process_one_work+0x1790/0x1790 [ 34.594932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.594932][ T7] ret_from_fork+0x24/0x30 [ 34.594963][ T2] mmdrop (____ptrval____) before 4 [ 34.600193][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.604932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.604932][ T2] Call Trace: [ 34.604932][ T2] dump_stack+0x172/0x1f0 [ 34.604932][ T2] finish_task_switch+0x239/0x790 [ 34.604932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.604932][ T2] __schedule+0x7d3/0x1580 [ 34.604932][ T2] ? __sched_text_start+0x8/0x8 [ 34.604932][ T2] schedule+0xa8/0x260 [ 34.604932][ T2] kthreadd+0x5cc/0x740 [ 34.604932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.604932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.604932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.604932][ T2] ret_from_fork+0x24/0x30 [ 34.604977][ T2] mmgrab (____ptrval____) to 4 [ 34.609970][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.614932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.614932][ T2] Call Trace: [ 34.614932][ T2] dump_stack+0x172/0x1f0 [ 34.614932][ T2] __schedule+0xd03/0x1580 [ 34.614932][ T2] ? __sched_text_start+0x8/0x8 [ 34.614932][ T2] schedule+0xa8/0x260 [ 34.614932][ T2] kthreadd+0x5cc/0x740 [ 34.614932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.614932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.614932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.614932][ T2] ret_from_fork+0x24/0x30 [ 34.614961][ T8] mmdrop (____ptrval____) before 4 [ 34.624975][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.632349][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.634932][ T8] Call Trace: [ 34.634932][ T8] dump_stack+0x172/0x1f0 [ 34.634932][ T8] finish_task_switch+0x239/0x790 [ 34.634932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.634932][ T8] __schedule+0x7d3/0x1580 [ 34.634932][ T8] ? __sched_text_start+0x8/0x8 [ 34.634932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.634932][ T8] schedule+0xa8/0x260 [ 34.634932][ T8] kthread+0x27a/0x420 [ 34.634932][ T8] ? process_one_work+0x1790/0x1790 [ 34.634932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.634932][ T8] ret_from_fork+0x24/0x30 [ 34.634977][ T8] mmgrab (____ptrval____) to 4 [ 34.639914][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.644932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.644932][ T8] Call Trace: [ 34.644932][ T8] dump_stack+0x172/0x1f0 [ 34.644932][ T8] __schedule+0xd03/0x1580 [ 34.644932][ T8] ? __sched_text_start+0x8/0x8 [ 34.644932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.644932][ T8] schedule+0xa8/0x260 [ 34.644932][ T8] kthread+0x27a/0x420 [ 34.644932][ T8] ? process_one_work+0x1790/0x1790 [ 34.644932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.644932][ T8] ret_from_fork+0x24/0x30 [ 34.644964][ T1] mmdrop (____ptrval____) before 4 [ 34.654981][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.662136][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.664932][ T1] Call Trace: [ 34.664932][ T1] dump_stack+0x172/0x1f0 [ 34.664932][ T1] finish_task_switch+0x239/0x790 [ 34.664932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.664932][ T1] __schedule+0x7d3/0x1580 [ 34.664932][ T1] ? __sched_text_start+0x8/0x8 [ 34.664932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.664932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.664932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.664932][ T1] preempt_schedule+0x4b/0x60 [ 34.664932][ T1] ___preempt_schedule+0x16/0x18 [ 34.664932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.664932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.664932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.664932][ T1] ? kasan_check_read+0x11/0x20 [ 34.664932][ T1] wake_up_process+0x10/0x20 [ 34.664932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.664932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.664932][ T1] ? find_held_lock+0x35/0x130 [ 34.664932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.664932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.664932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.664932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.664932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.664932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.664932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.664932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.664932][ T1] alloc_workqueue+0x669/0xf00 [ 34.664932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.664932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.664932][ T1] ? cpumask_next+0x41/0x50 [ 34.664932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.664932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.664932][ T1] init_mm_internals+0x24/0x3c9 [ 34.664932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.664932][ T1] ? rest_init+0x37b/0x37b [ 34.664932][ T1] kernel_init+0x12/0x1c5 [ 34.664932][ T1] ret_from_fork+0x24/0x30 [ 34.664980][ T1] mmgrab (____ptrval____) to 4 [ 34.669748][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.674932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.674932][ T1] Call Trace: [ 34.674932][ T1] dump_stack+0x172/0x1f0 [ 34.674932][ T1] __schedule+0xd03/0x1580 [ 34.674932][ T1] ? __sched_text_start+0x8/0x8 [ 34.674932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.674932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.674932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.674932][ T1] preempt_schedule+0x4b/0x60 [ 34.674932][ T1] ___preempt_schedule+0x16/0x18 [ 34.674932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.674932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.674932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.674932][ T1] ? kasan_check_read+0x11/0x20 [ 34.674932][ T1] wake_up_process+0x10/0x20 [ 34.674932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.674932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.674932][ T1] ? find_held_lock+0x35/0x130 [ 34.674932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.674932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.674932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.674932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.674932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.674932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.674932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.674932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.674932][ T1] alloc_workqueue+0x669/0xf00 [ 34.674932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.674932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.674932][ T1] ? cpumask_next+0x41/0x50 [ 34.674932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.674932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.674932][ T1] init_mm_internals+0x24/0x3c9 [ 34.674932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.674932][ T1] ? rest_init+0x37b/0x37b [ 34.674932][ T1] kernel_init+0x12/0x1c5 [ 34.674932][ T1] ret_from_fork+0x24/0x30 [ 34.674967][ T7] mmdrop (____ptrval____) before 4 [ 34.680077][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.684932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.684932][ T7] Workqueue: 0x0 (events) [ 34.684932][ T7] Call Trace: [ 34.684932][ T7] dump_stack+0x172/0x1f0 [ 34.684932][ T7] finish_task_switch+0x239/0x790 [ 34.684932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.684932][ T7] __schedule+0x7d3/0x1580 [ 34.684932][ T7] ? __sched_text_start+0x8/0x8 [ 34.684932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.684932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.684932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.684932][ T7] ? kthread_data+0x58/0xc0 [ 34.684932][ T7] schedule+0xa8/0x260 [ 34.684932][ T7] worker_thread+0x248/0xe40 [ 34.684932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.684932][ T7] kthread+0x354/0x420 [ 34.684932][ T7] ? process_one_work+0x1790/0x1790 [ 34.684932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.684932][ T7] ret_from_fork+0x24/0x30 [ 34.684987][ T7] mmgrab (____ptrval____) to 4 [ 34.689856][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.694932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.694932][ T7] Workqueue: 0x0 (events) [ 34.694932][ T7] Call Trace: [ 34.694932][ T7] dump_stack+0x172/0x1f0 [ 34.694932][ T7] __schedule+0xd03/0x1580 [ 34.694932][ T7] ? __sched_text_start+0x8/0x8 [ 34.694932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.694932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.694932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.694932][ T7] ? kthread_data+0x58/0xc0 [ 34.694932][ T7] schedule+0xa8/0x260 [ 34.694932][ T7] worker_thread+0x248/0xe40 [ 34.694932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.694932][ T7] kthread+0x354/0x420 [ 34.694932][ T7] ? process_one_work+0x1790/0x1790 [ 34.694932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.694932][ T7] ret_from_fork+0x24/0x30 [ 34.704949][ T2] mmdrop (____ptrval____) before 4 [ 34.710065][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.714932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.714932][ T2] Call Trace: [ 34.714932][ T2] dump_stack+0x172/0x1f0 [ 34.714932][ T2] finish_task_switch+0x239/0x790 [ 34.714932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.714932][ T2] __schedule+0x7d3/0x1580 [ 34.714932][ T2] ? __sched_text_start+0x8/0x8 [ 34.714932][ T2] schedule+0xa8/0x260 [ 34.714932][ T2] kthreadd+0x5cc/0x740 [ 34.714932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.714932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.714932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.714932][ T2] ret_from_fork+0x24/0x30 [ 34.714975][ T2] mmgrab (____ptrval____) to 4 [ 34.719895][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.724932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.724932][ T2] Call Trace: [ 34.724932][ T2] dump_stack+0x172/0x1f0 [ 34.724932][ T2] __schedule+0xd03/0x1580 [ 34.724932][ T2] ? __sched_text_start+0x8/0x8 [ 34.724932][ T2] schedule+0xa8/0x260 [ 34.724932][ T2] kthreadd+0x5cc/0x740 [ 34.724932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.724932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.724932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.724932][ T2] ret_from_fork+0x24/0x30 [ 34.724963][ T8] mmdrop (____ptrval____) before 4 [ 34.734966][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.742342][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.744932][ T8] Call Trace: [ 34.744932][ T8] dump_stack+0x172/0x1f0 [ 34.744932][ T8] finish_task_switch+0x239/0x790 [ 34.744932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.744932][ T8] __schedule+0x7d3/0x1580 [ 34.744932][ T8] ? __sched_text_start+0x8/0x8 [ 34.744932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.744932][ T8] schedule+0xa8/0x260 [ 34.744932][ T8] kthread+0x27a/0x420 [ 34.744932][ T8] ? process_one_work+0x1790/0x1790 [ 34.744932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.744932][ T8] ret_from_fork+0x24/0x30 [ 34.744988][ T8] mmgrab (____ptrval____) to 4 [ 34.750085][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.754932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.754932][ T8] Call Trace: [ 34.754932][ T8] dump_stack+0x172/0x1f0 [ 34.754932][ T8] __schedule+0xd03/0x1580 [ 34.754932][ T8] ? __sched_text_start+0x8/0x8 [ 34.754932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.754932][ T8] schedule+0xa8/0x260 [ 34.754932][ T8] kthread+0x27a/0x420 [ 34.754932][ T8] ? process_one_work+0x1790/0x1790 [ 34.754932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.754932][ T8] ret_from_fork+0x24/0x30 [ 34.754963][ T1] mmdrop (____ptrval____) before 4 [ 34.764973][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.772257][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.774932][ T1] Call Trace: [ 34.774932][ T1] dump_stack+0x172/0x1f0 [ 34.774932][ T1] finish_task_switch+0x239/0x790 [ 34.774932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.774932][ T1] __schedule+0x7d3/0x1580 [ 34.774932][ T1] ? __sched_text_start+0x8/0x8 [ 34.774932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.774932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.774932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.774932][ T1] preempt_schedule+0x4b/0x60 [ 34.774932][ T1] ___preempt_schedule+0x16/0x18 [ 34.774932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.774932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.774932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.774932][ T1] ? kasan_check_read+0x11/0x20 [ 34.774932][ T1] wake_up_process+0x10/0x20 [ 34.774932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.774932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.774932][ T1] ? find_held_lock+0x35/0x130 [ 34.774932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.774932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.774932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.774932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.774932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.774932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.774932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.774932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.774932][ T1] alloc_workqueue+0x669/0xf00 [ 34.774932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.774932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.774932][ T1] ? cpumask_next+0x41/0x50 [ 34.774932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.774932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.774932][ T1] init_mm_internals+0x24/0x3c9 [ 34.774932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.774932][ T1] ? rest_init+0x37b/0x37b [ 34.774932][ T1] kernel_init+0x12/0x1c5 [ 34.774932][ T1] ret_from_fork+0x24/0x30 [ 34.774983][ T1] mmgrab (____ptrval____) to 4 [ 34.779751][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.784932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.784932][ T1] Call Trace: [ 34.784932][ T1] dump_stack+0x172/0x1f0 [ 34.784932][ T1] __schedule+0xd03/0x1580 [ 34.784932][ T1] ? __sched_text_start+0x8/0x8 [ 34.784932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.784932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.784932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.784932][ T1] preempt_schedule+0x4b/0x60 [ 34.784932][ T1] ___preempt_schedule+0x16/0x18 [ 34.784932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.784932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.784932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.784932][ T1] ? kasan_check_read+0x11/0x20 [ 34.784932][ T1] wake_up_process+0x10/0x20 [ 34.784932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.784932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.784932][ T1] ? find_held_lock+0x35/0x130 [ 34.784932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.784932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.784932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.784932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.784932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.784932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.784932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.784932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.784932][ T1] alloc_workqueue+0x669/0xf00 [ 34.784932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.784932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.784932][ T1] ? cpumask_next+0x41/0x50 [ 34.784932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.784932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.784932][ T1] init_mm_internals+0x24/0x3c9 [ 34.784932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.784932][ T1] ? rest_init+0x37b/0x37b [ 34.784932][ T1] kernel_init+0x12/0x1c5 [ 34.784932][ T1] ret_from_fork+0x24/0x30 [ 34.784961][ T7] mmdrop (____ptrval____) before 4 [ 34.794973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.802268][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.804932][ T7] Workqueue: 0x0 (events) [ 34.804932][ T7] Call Trace: [ 34.804932][ T7] dump_stack+0x172/0x1f0 [ 34.804932][ T7] finish_task_switch+0x239/0x790 [ 34.804932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.804932][ T7] __schedule+0x7d3/0x1580 [ 34.804932][ T7] ? __sched_text_start+0x8/0x8 [ 34.804932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.804932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.804932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.804932][ T7] ? kthread_data+0x58/0xc0 [ 34.804932][ T7] schedule+0xa8/0x260 [ 34.804932][ T7] worker_thread+0x248/0xe40 [ 34.804932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.804932][ T7] kthread+0x354/0x420 [ 34.804932][ T7] ? process_one_work+0x1790/0x1790 [ 34.804932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.804932][ T7] ret_from_fork+0x24/0x30 [ 34.804974][ T7] mmgrab (____ptrval____) to 4 [ 34.809738][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.814932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.814932][ T7] Workqueue: 0x0 (events) [ 34.814932][ T7] Call Trace: [ 34.814932][ T7] dump_stack+0x172/0x1f0 [ 34.814932][ T7] __schedule+0xd03/0x1580 [ 34.814932][ T7] ? __sched_text_start+0x8/0x8 [ 34.814932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.814932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.814932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.814932][ T7] ? kthread_data+0x58/0xc0 [ 34.814932][ T7] schedule+0xa8/0x260 [ 34.814932][ T7] worker_thread+0x248/0xe40 [ 34.814932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.814932][ T7] kthread+0x354/0x420 [ 34.814932][ T7] ? process_one_work+0x1790/0x1790 [ 34.814932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.814932][ T7] ret_from_fork+0x24/0x30 [ 34.814966][ T2] mmdrop (____ptrval____) before 4 [ 34.824972][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.832522][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.834932][ T2] Call Trace: [ 34.834932][ T2] dump_stack+0x172/0x1f0 [ 34.834932][ T2] finish_task_switch+0x239/0x790 [ 34.834932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.834932][ T2] __schedule+0x7d3/0x1580 [ 34.834932][ T2] ? __sched_text_start+0x8/0x8 [ 34.834932][ T2] schedule+0xa8/0x260 [ 34.834932][ T2] kthreadd+0x5cc/0x740 [ 34.834932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.834932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.834932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.834932][ T2] ret_from_fork+0x24/0x30 [ 34.834974][ T2] mmgrab (____ptrval____) to 4 [ 34.839750][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.844932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.844932][ T2] Call Trace: [ 34.844932][ T2] dump_stack+0x172/0x1f0 [ 34.844932][ T2] __schedule+0xd03/0x1580 [ 34.844932][ T2] ? __sched_text_start+0x8/0x8 [ 34.844932][ T2] schedule+0xa8/0x260 [ 34.844932][ T2] kthreadd+0x5cc/0x740 [ 34.844932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.844932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.844932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.844932][ T2] ret_from_fork+0x24/0x30 [ 34.844962][ T8] mmdrop (____ptrval____) before 4 [ 34.854964][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.862330][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.864932][ T8] Call Trace: [ 34.864932][ T8] dump_stack+0x172/0x1f0 [ 34.864932][ T8] finish_task_switch+0x239/0x790 [ 34.864932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.864932][ T8] __schedule+0x7d3/0x1580 [ 34.864932][ T8] ? __sched_text_start+0x8/0x8 [ 34.864932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.864932][ T8] schedule+0xa8/0x260 [ 34.864932][ T8] kthread+0x27a/0x420 [ 34.864932][ T8] ? process_one_work+0x1790/0x1790 [ 34.864932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.864932][ T8] ret_from_fork+0x24/0x30 [ 34.864975][ T8] mmgrab (____ptrval____) to 4 [ 34.870162][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.874932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.874932][ T8] Call Trace: [ 34.874932][ T8] dump_stack+0x172/0x1f0 [ 34.874932][ T8] __schedule+0xd03/0x1580 [ 34.874932][ T8] ? __sched_text_start+0x8/0x8 [ 34.874932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.874932][ T8] schedule+0xa8/0x260 [ 34.874932][ T8] kthread+0x27a/0x420 [ 34.874932][ T8] ? process_one_work+0x1790/0x1790 [ 34.874932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.874932][ T8] ret_from_fork+0x24/0x30 [ 34.874963][ T1] mmdrop (____ptrval____) before 4 [ 34.884973][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.892088][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.894932][ T1] Call Trace: [ 34.894932][ T1] dump_stack+0x172/0x1f0 [ 34.894932][ T1] finish_task_switch+0x239/0x790 [ 34.894932][ T1] ? dump_stack+0x1de/0x1f0 [ 34.894932][ T1] __schedule+0x7d3/0x1580 [ 34.894932][ T1] ? __sched_text_start+0x8/0x8 [ 34.894932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.894932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.894932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.894932][ T1] preempt_schedule+0x4b/0x60 [ 34.894932][ T1] ___preempt_schedule+0x16/0x18 [ 34.894932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.894932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.894932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.894932][ T1] ? kasan_check_read+0x11/0x20 [ 34.894932][ T1] wake_up_process+0x10/0x20 [ 34.894932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.894932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.894932][ T1] ? find_held_lock+0x35/0x130 [ 34.894932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.894932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.894932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.894932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.894932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.894932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.894932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.894932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.894932][ T1] alloc_workqueue+0x669/0xf00 [ 34.894932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.894932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.894932][ T1] ? cpumask_next+0x41/0x50 [ 34.894932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.894932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.894932][ T1] init_mm_internals+0x24/0x3c9 [ 34.894932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.894932][ T1] ? rest_init+0x37b/0x37b [ 34.894932][ T1] kernel_init+0x12/0x1c5 [ 34.894932][ T1] ret_from_fork+0x24/0x30 [ 34.894975][ T1] mmgrab (____ptrval____) to 4 [ 34.899837][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 34.904932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.904932][ T1] Call Trace: [ 34.904932][ T1] dump_stack+0x172/0x1f0 [ 34.904932][ T1] __schedule+0xd03/0x1580 [ 34.904932][ T1] ? __sched_text_start+0x8/0x8 [ 34.904932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 34.904932][ T1] ? preempt_schedule+0x4b/0x60 [ 34.904932][ T1] preempt_schedule_common+0x4f/0xe0 [ 34.904932][ T1] preempt_schedule+0x4b/0x60 [ 34.904932][ T1] ___preempt_schedule+0x16/0x18 [ 34.904932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 34.904932][ T1] try_to_wake_up+0xc8/0x13f0 [ 34.904932][ T1] ? migrate_swap_stop+0x920/0x920 [ 34.904932][ T1] ? kasan_check_read+0x11/0x20 [ 34.904932][ T1] wake_up_process+0x10/0x20 [ 34.904932][ T1] __kthread_create_on_node+0x281/0x460 [ 34.904932][ T1] ? kthread_parkme+0xb0/0xb0 [ 34.904932][ T1] ? find_held_lock+0x35/0x130 [ 34.904932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.904932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 34.904932][ T1] kthread_create_on_node+0xbb/0xf0 [ 34.904932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 34.904932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 34.904932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 34.904932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.904932][ T1] init_rescuer.part.0+0x7d/0x190 [ 34.904932][ T1] alloc_workqueue+0x669/0xf00 [ 34.904932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 34.904932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 34.904932][ T1] ? cpumask_next+0x41/0x50 [ 34.904932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 34.904932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 34.904932][ T1] init_mm_internals+0x24/0x3c9 [ 34.904932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 34.904932][ T1] ? rest_init+0x37b/0x37b [ 34.904932][ T1] kernel_init+0x12/0x1c5 [ 34.904932][ T1] ret_from_fork+0x24/0x30 [ 34.904962][ T7] mmdrop (____ptrval____) before 4 [ 34.910176][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.914932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.914932][ T7] Workqueue: 0x0 (events) [ 34.914932][ T7] Call Trace: [ 34.914932][ T7] dump_stack+0x172/0x1f0 [ 34.914932][ T7] finish_task_switch+0x239/0x790 [ 34.914932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.914932][ T7] __schedule+0x7d3/0x1580 [ 34.914932][ T7] ? __sched_text_start+0x8/0x8 [ 34.914932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.914932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.914932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.914932][ T7] ? kthread_data+0x58/0xc0 [ 34.914932][ T7] schedule+0xa8/0x260 [ 34.914932][ T7] worker_thread+0x248/0xe40 [ 34.914932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.914932][ T7] kthread+0x354/0x420 [ 34.914932][ T7] ? process_one_work+0x1790/0x1790 [ 34.914932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.914932][ T7] ret_from_fork+0x24/0x30 [ 34.914977][ T7] mmgrab (____ptrval____) to 4 [ 34.919737][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.924932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.924932][ T7] Workqueue: 0x0 (events) [ 34.924932][ T7] Call Trace: [ 34.924932][ T7] dump_stack+0x172/0x1f0 [ 34.924932][ T7] __schedule+0xd03/0x1580 [ 34.924932][ T7] ? __sched_text_start+0x8/0x8 [ 34.924932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.924932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.924932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.924932][ T7] ? kthread_data+0x58/0xc0 [ 34.924932][ T7] schedule+0xa8/0x260 [ 34.924932][ T7] worker_thread+0x248/0xe40 [ 34.924932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.924932][ T7] kthread+0x354/0x420 [ 34.924932][ T7] ? process_one_work+0x1790/0x1790 [ 34.924932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.924932][ T7] ret_from_fork+0x24/0x30 [ 34.924962][ T2] mmdrop (____ptrval____) before 4 [ 34.930281][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.934932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.934932][ T2] Call Trace: [ 34.934932][ T2] dump_stack+0x172/0x1f0 [ 34.934932][ T2] finish_task_switch+0x239/0x790 [ 34.934932][ T2] ? dump_stack+0x1de/0x1f0 [ 34.934932][ T2] __schedule+0x7d3/0x1580 [ 34.934932][ T2] ? __sched_text_start+0x8/0x8 [ 34.934932][ T2] schedule+0xa8/0x260 [ 34.934932][ T2] kthreadd+0x5cc/0x740 [ 34.934932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.934932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.934932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.934932][ T2] ret_from_fork+0x24/0x30 [ 34.934977][ T2] mmgrab (____ptrval____) to 4 [ 34.940044][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 34.944932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.944932][ T2] Call Trace: [ 34.944932][ T2] dump_stack+0x172/0x1f0 [ 34.944932][ T2] __schedule+0xd03/0x1580 [ 34.944932][ T2] ? __sched_text_start+0x8/0x8 [ 34.944932][ T2] schedule+0xa8/0x260 [ 34.944932][ T2] kthreadd+0x5cc/0x740 [ 34.944932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.944932][ T2] ? calculate_sigpending+0x87/0xa0 [ 34.944932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 34.944932][ T2] ret_from_fork+0x24/0x30 [ 34.944968][ T8] mmdrop (____ptrval____) before 4 [ 34.950098][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.954932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.954932][ T8] Call Trace: [ 34.954932][ T8] dump_stack+0x172/0x1f0 [ 34.954932][ T8] finish_task_switch+0x239/0x790 [ 34.954932][ T8] ? dump_stack+0x1de/0x1f0 [ 34.954932][ T8] __schedule+0x7d3/0x1580 [ 34.954932][ T8] ? __sched_text_start+0x8/0x8 [ 34.954932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.954932][ T8] schedule+0xa8/0x260 [ 34.954932][ T8] kthread+0x27a/0x420 [ 34.954932][ T8] ? process_one_work+0x1790/0x1790 [ 34.954932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.954932][ T8] ret_from_fork+0x24/0x30 [ 34.954973][ T8] mmgrab (____ptrval____) to 4 [ 34.959845][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 34.964932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.964932][ T8] Call Trace: [ 34.964932][ T8] dump_stack+0x172/0x1f0 [ 34.964932][ T8] __schedule+0xd03/0x1580 [ 34.964932][ T8] ? __sched_text_start+0x8/0x8 [ 34.964932][ T8] ? ___preempt_schedule+0x16/0x18 [ 34.964932][ T8] schedule+0xa8/0x260 [ 34.964932][ T8] kthread+0x27a/0x420 [ 34.964932][ T8] ? process_one_work+0x1790/0x1790 [ 34.964932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.964932][ T8] ret_from_fork+0x24/0x30 [ 34.964961][ T7] mmdrop (____ptrval____) before 4 [ 34.970073][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.974932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.974932][ T7] Workqueue: 0x0 (events) [ 34.974932][ T7] Call Trace: [ 34.974932][ T7] dump_stack+0x172/0x1f0 [ 34.974932][ T7] finish_task_switch+0x239/0x790 [ 34.974932][ T7] ? dump_stack+0x1de/0x1f0 [ 34.974932][ T7] __schedule+0x7d3/0x1580 [ 34.974932][ T7] ? __sched_text_start+0x8/0x8 [ 34.974932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.974932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.974932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.974932][ T7] ? kthread_data+0x58/0xc0 [ 34.974932][ T7] schedule+0xa8/0x260 [ 34.974932][ T7] worker_thread+0x248/0xe40 [ 34.974932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.974932][ T7] kthread+0x354/0x420 [ 34.974932][ T7] ? process_one_work+0x1790/0x1790 [ 34.974932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.974932][ T7] ret_from_fork+0x24/0x30 [ 34.974980][ T7] mmgrab (____ptrval____) to 4 [ 34.979773][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 34.984932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.984932][ T7] Workqueue: 0x0 (events) [ 34.984932][ T7] Call Trace: [ 34.984932][ T7] dump_stack+0x172/0x1f0 [ 34.984932][ T7] __schedule+0xd03/0x1580 [ 34.984932][ T7] ? __sched_text_start+0x8/0x8 [ 34.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 34.984932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.984932][ T7] ? kthread_data+0x58/0xc0 [ 34.984932][ T7] schedule+0xa8/0x260 [ 34.984932][ T7] worker_thread+0x248/0xe40 [ 34.984932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 34.984932][ T7] kthread+0x354/0x420 [ 34.984932][ T7] ? process_one_work+0x1790/0x1790 [ 34.984932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 34.984932][ T7] ret_from_fork+0x24/0x30 [ 34.984965][ T1] mmdrop (____ptrval____) before 4 [ 34.994982][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.002411][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.004932][ T1] Call Trace: [ 35.004932][ T1] dump_stack+0x172/0x1f0 [ 35.004932][ T1] finish_task_switch+0x239/0x790 [ 35.004932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.004932][ T1] __schedule+0x7d3/0x1580 [ 35.004932][ T1] ? __sched_text_start+0x8/0x8 [ 35.004932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.004932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.004932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.004932][ T1] preempt_schedule+0x4b/0x60 [ 35.004932][ T1] ___preempt_schedule+0x16/0x18 [ 35.004932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.004932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.004932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.004932][ T1] ? kasan_check_read+0x11/0x20 [ 35.004932][ T1] wake_up_process+0x10/0x20 [ 35.004932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.004932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.004932][ T1] ? find_held_lock+0x35/0x130 [ 35.004932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.004932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.004932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.004932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.004932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.004932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.004932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.004932][ T1] alloc_workqueue+0x669/0xf00 [ 35.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.004932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.004932][ T1] ? cpumask_next+0x41/0x50 [ 35.004932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.004932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.004932][ T1] init_mm_internals+0x24/0x3c9 [ 35.004932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.004932][ T1] ? rest_init+0x37b/0x37b [ 35.004932][ T1] kernel_init+0x12/0x1c5 [ 35.004932][ T1] ret_from_fork+0x24/0x30 [ 35.004977][ T1] mmgrab (____ptrval____) to 4 [ 35.009889][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.014932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.014932][ T1] Call Trace: [ 35.014932][ T1] dump_stack+0x172/0x1f0 [ 35.014932][ T1] __schedule+0xd03/0x1580 [ 35.014932][ T1] ? __sched_text_start+0x8/0x8 [ 35.014932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.014932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.014932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.014932][ T1] preempt_schedule+0x4b/0x60 [ 35.014932][ T1] ___preempt_schedule+0x16/0x18 [ 35.014932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.014932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.014932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.014932][ T1] ? kasan_check_read+0x11/0x20 [ 35.014932][ T1] wake_up_process+0x10/0x20 [ 35.014932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.014932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.014932][ T1] ? find_held_lock+0x35/0x130 [ 35.014932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.014932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.014932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.014932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.014932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.014932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.014932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.014932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.014932][ T1] alloc_workqueue+0x669/0xf00 [ 35.014932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.014932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.014932][ T1] ? cpumask_next+0x41/0x50 [ 35.014932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.014932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.014932][ T1] init_mm_internals+0x24/0x3c9 [ 35.014932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.014932][ T1] ? rest_init+0x37b/0x37b [ 35.014932][ T1] kernel_init+0x12/0x1c5 [ 35.014932][ T1] ret_from_fork+0x24/0x30 [ 35.014964][ T2] mmdrop (____ptrval____) before 4 [ 35.024962][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.032099][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.034932][ T2] Call Trace: [ 35.034932][ T2] dump_stack+0x172/0x1f0 [ 35.034932][ T2] finish_task_switch+0x239/0x790 [ 35.034932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.034932][ T2] __schedule+0x7d3/0x1580 [ 35.034932][ T2] ? __sched_text_start+0x8/0x8 [ 35.034932][ T2] schedule+0xa8/0x260 [ 35.034932][ T2] kthreadd+0x5cc/0x740 [ 35.034932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.034932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.034932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.034932][ T2] ret_from_fork+0x24/0x30 [ 35.034982][ T2] mmgrab (____ptrval____) to 4 [ 35.039761][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.044932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.044932][ T2] Call Trace: [ 35.044932][ T2] dump_stack+0x172/0x1f0 [ 35.044932][ T2] __schedule+0xd03/0x1580 [ 35.044932][ T2] ? __sched_text_start+0x8/0x8 [ 35.044932][ T2] schedule+0xa8/0x260 [ 35.044932][ T2] kthreadd+0x5cc/0x740 [ 35.044932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.044932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.044932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.044932][ T2] ret_from_fork+0x24/0x30 [ 35.044961][ T8] mmdrop (____ptrval____) before 4 [ 35.050153][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.054932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.054932][ T8] Call Trace: [ 35.054932][ T8] dump_stack+0x172/0x1f0 [ 35.054932][ T8] finish_task_switch+0x239/0x790 [ 35.054932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.054932][ T8] __schedule+0x7d3/0x1580 [ 35.054932][ T8] ? __sched_text_start+0x8/0x8 [ 35.054932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.054932][ T8] schedule+0xa8/0x260 [ 35.054932][ T8] kthread+0x27a/0x420 [ 35.054932][ T8] ? process_one_work+0x1790/0x1790 [ 35.054932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.054932][ T8] ret_from_fork+0x24/0x30 [ 35.054974][ T8] mmgrab (____ptrval____) to 4 [ 35.059740][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.064932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.064932][ T8] Call Trace: [ 35.064932][ T8] dump_stack+0x172/0x1f0 [ 35.064932][ T8] __schedule+0xd03/0x1580 [ 35.064932][ T8] ? __sched_text_start+0x8/0x8 [ 35.064932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.064932][ T8] schedule+0xa8/0x260 [ 35.064932][ T8] kthread+0x27a/0x420 [ 35.064932][ T8] ? process_one_work+0x1790/0x1790 [ 35.064932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.064932][ T8] ret_from_fork+0x24/0x30 [ 35.064963][ T7] mmdrop (____ptrval____) before 4 [ 35.074964][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.082255][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.084932][ T7] Workqueue: 0x0 (events) [ 35.084932][ T7] Call Trace: [ 35.084932][ T7] dump_stack+0x172/0x1f0 [ 35.084932][ T7] finish_task_switch+0x239/0x790 [ 35.084932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.084932][ T7] __schedule+0x7d3/0x1580 [ 35.084932][ T7] ? __sched_text_start+0x8/0x8 [ 35.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.084932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.084932][ T7] ? kthread_data+0x58/0xc0 [ 35.084932][ T7] schedule+0xa8/0x260 [ 35.084932][ T7] worker_thread+0x248/0xe40 [ 35.084932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.084932][ T7] kthread+0x354/0x420 [ 35.084932][ T7] ? process_one_work+0x1790/0x1790 [ 35.084932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.084932][ T7] ret_from_fork+0x24/0x30 [ 35.084976][ T7] mmgrab (____ptrval____) to 4 [ 35.089734][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.094932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.094932][ T7] Workqueue: 0x0 (events) [ 35.094932][ T7] Call Trace: [ 35.094932][ T7] dump_stack+0x172/0x1f0 [ 35.094932][ T7] __schedule+0xd03/0x1580 [ 35.094932][ T7] ? __sched_text_start+0x8/0x8 [ 35.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.094932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.094932][ T7] ? kthread_data+0x58/0xc0 [ 35.094932][ T7] schedule+0xa8/0x260 [ 35.094932][ T7] worker_thread+0x248/0xe40 [ 35.094932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.094932][ T7] kthread+0x354/0x420 [ 35.094932][ T7] ? process_one_work+0x1790/0x1790 [ 35.094932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.094932][ T7] ret_from_fork+0x24/0x30 [ 35.094962][ T1] mmdrop (____ptrval____) before 4 [ 35.104958][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.112256][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.114932][ T1] Call Trace: [ 35.114932][ T1] dump_stack+0x172/0x1f0 [ 35.114932][ T1] finish_task_switch+0x239/0x790 [ 35.114932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.114932][ T1] __schedule+0x7d3/0x1580 [ 35.114932][ T1] ? __sched_text_start+0x8/0x8 [ 35.114932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.114932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.114932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.114932][ T1] preempt_schedule+0x4b/0x60 [ 35.114932][ T1] ___preempt_schedule+0x16/0x18 [ 35.114932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.114932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.114932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.114932][ T1] ? kasan_check_read+0x11/0x20 [ 35.114932][ T1] wake_up_process+0x10/0x20 [ 35.114932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.114932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.114932][ T1] ? find_held_lock+0x35/0x130 [ 35.114932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.114932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.114932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.114932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.114932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.114932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.114932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.114932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.114932][ T1] alloc_workqueue+0x669/0xf00 [ 35.114932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.114932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.114932][ T1] ? cpumask_next+0x41/0x50 [ 35.114932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.114932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.114932][ T1] init_mm_internals+0x24/0x3c9 [ 35.114932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.114932][ T1] ? rest_init+0x37b/0x37b [ 35.114932][ T1] kernel_init+0x12/0x1c5 [ 35.114932][ T1] ret_from_fork+0x24/0x30 [ 35.114975][ T1] mmgrab (____ptrval____) to 4 [ 35.119751][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.124932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.124932][ T1] Call Trace: [ 35.124932][ T1] dump_stack+0x172/0x1f0 [ 35.124932][ T1] __schedule+0xd03/0x1580 [ 35.124932][ T1] ? __sched_text_start+0x8/0x8 [ 35.124932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.124932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.124932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.124932][ T1] preempt_schedule+0x4b/0x60 [ 35.124932][ T1] ___preempt_schedule+0x16/0x18 [ 35.124932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.124932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.124932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.124932][ T1] ? kasan_check_read+0x11/0x20 [ 35.124932][ T1] wake_up_process+0x10/0x20 [ 35.124932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.124932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.124932][ T1] ? find_held_lock+0x35/0x130 [ 35.124932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.124932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.124932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.124932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.124932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.124932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.124932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.124932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.124932][ T1] alloc_workqueue+0x669/0xf00 [ 35.124932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.124932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.124932][ T1] ? cpumask_next+0x41/0x50 [ 35.124932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.124932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.124932][ T1] init_mm_internals+0x24/0x3c9 [ 35.124932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.124932][ T1] ? rest_init+0x37b/0x37b [ 35.124932][ T1] kernel_init+0x12/0x1c5 [ 35.124932][ T1] ret_from_fork+0x24/0x30 [ 35.124962][ T2] mmdrop (____ptrval____) before 4 [ 35.134976][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.144932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.144932][ T2] Call Trace: [ 35.144932][ T2] dump_stack+0x172/0x1f0 [ 35.144932][ T2] finish_task_switch+0x239/0x790 [ 35.144932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.144932][ T2] __schedule+0x7d3/0x1580 [ 35.144932][ T2] ? __sched_text_start+0x8/0x8 [ 35.144932][ T2] schedule+0xa8/0x260 [ 35.144932][ T2] kthreadd+0x5cc/0x740 [ 35.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.144932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.144932][ T2] ret_from_fork+0x24/0x30 [ 35.144975][ T2] mmgrab (____ptrval____) to 4 [ 35.149842][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.154932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.154932][ T2] Call Trace: [ 35.154932][ T2] dump_stack+0x172/0x1f0 [ 35.154932][ T2] __schedule+0xd03/0x1580 [ 35.154932][ T2] ? __sched_text_start+0x8/0x8 [ 35.154932][ T2] schedule+0xa8/0x260 [ 35.154932][ T2] kthreadd+0x5cc/0x740 [ 35.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.154932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.154932][ T2] ret_from_fork+0x24/0x30 [ 35.154961][ T8] mmdrop (____ptrval____) before 4 [ 35.160228][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.164932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.164932][ T8] Call Trace: [ 35.164932][ T8] dump_stack+0x172/0x1f0 [ 35.164932][ T8] finish_task_switch+0x239/0x790 [ 35.164932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.164932][ T8] __schedule+0x7d3/0x1580 [ 35.164932][ T8] ? __sched_text_start+0x8/0x8 [ 35.164932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.164932][ T8] schedule+0xa8/0x260 [ 35.164932][ T8] kthread+0x27a/0x420 [ 35.164932][ T8] ? process_one_work+0x1790/0x1790 [ 35.164932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.164932][ T8] ret_from_fork+0x24/0x30 [ 35.164977][ T8] mmgrab (____ptrval____) to 4 [ 35.169738][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.174932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.174932][ T8] Call Trace: [ 35.174932][ T8] dump_stack+0x172/0x1f0 [ 35.174932][ T8] __schedule+0xd03/0x1580 [ 35.174932][ T8] ? __sched_text_start+0x8/0x8 [ 35.174932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.174932][ T8] schedule+0xa8/0x260 [ 35.174932][ T8] kthread+0x27a/0x420 [ 35.174932][ T8] ? process_one_work+0x1790/0x1790 [ 35.174932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.174932][ T8] ret_from_fork+0x24/0x30 [ 35.174966][ T7] mmdrop (____ptrval____) before 4 [ 35.180470][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.184932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.184932][ T7] Workqueue: 0x0 (events) [ 35.184932][ T7] Call Trace: [ 35.184932][ T7] dump_stack+0x172/0x1f0 [ 35.184932][ T7] finish_task_switch+0x239/0x790 [ 35.184932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.184932][ T7] __schedule+0x7d3/0x1580 [ 35.184932][ T7] ? __sched_text_start+0x8/0x8 [ 35.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.184932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.184932][ T7] ? kthread_data+0x58/0xc0 [ 35.184932][ T7] schedule+0xa8/0x260 [ 35.184932][ T7] worker_thread+0x248/0xe40 [ 35.184932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.184932][ T7] kthread+0x354/0x420 [ 35.184932][ T7] ? process_one_work+0x1790/0x1790 [ 35.184932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.184932][ T7] ret_from_fork+0x24/0x30 [ 35.184975][ T7] mmgrab (____ptrval____) to 4 [ 35.189743][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.194932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.194932][ T7] Workqueue: 0x0 (events) [ 35.194932][ T7] Call Trace: [ 35.194932][ T7] dump_stack+0x172/0x1f0 [ 35.194932][ T7] __schedule+0xd03/0x1580 [ 35.194932][ T7] ? __sched_text_start+0x8/0x8 [ 35.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.194932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.194932][ T7] ? kthread_data+0x58/0xc0 [ 35.194932][ T7] schedule+0xa8/0x260 [ 35.194932][ T7] worker_thread+0x248/0xe40 [ 35.194932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.194932][ T7] kthread+0x354/0x420 [ 35.194932][ T7] ? process_one_work+0x1790/0x1790 [ 35.194932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.194932][ T7] ret_from_fork+0x24/0x30 [ 35.194961][ T1] mmdrop (____ptrval____) before 4 [ 35.200075][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.204932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.204932][ T1] Call Trace: [ 35.204932][ T1] dump_stack+0x172/0x1f0 [ 35.204932][ T1] finish_task_switch+0x239/0x790 [ 35.204932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.204932][ T1] __schedule+0x7d3/0x1580 [ 35.204932][ T1] ? __sched_text_start+0x8/0x8 [ 35.204932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.204932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.204932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.204932][ T1] preempt_schedule+0x4b/0x60 [ 35.204932][ T1] ___preempt_schedule+0x16/0x18 [ 35.204932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.204932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.204932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.204932][ T1] ? kasan_check_read+0x11/0x20 [ 35.204932][ T1] wake_up_process+0x10/0x20 [ 35.204932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.204932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.204932][ T1] ? find_held_lock+0x35/0x130 [ 35.204932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.204932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.204932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.204932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.204932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.204932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.204932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.204932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.204932][ T1] alloc_workqueue+0x669/0xf00 [ 35.204932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.204932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.204932][ T1] ? cpumask_next+0x41/0x50 [ 35.204932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.204932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.204932][ T1] init_mm_internals+0x24/0x3c9 [ 35.204932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.204932][ T1] ? rest_init+0x37b/0x37b [ 35.204932][ T1] kernel_init+0x12/0x1c5 [ 35.204932][ T1] ret_from_fork+0x24/0x30 [ 35.204974][ T1] mmgrab (____ptrval____) to 4 [ 35.210110][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.214932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.214932][ T1] Call Trace: [ 35.214932][ T1] dump_stack+0x172/0x1f0 [ 35.214932][ T1] __schedule+0xd03/0x1580 [ 35.214932][ T1] ? __sched_text_start+0x8/0x8 [ 35.214932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.214932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.214932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.214932][ T1] preempt_schedule+0x4b/0x60 [ 35.214932][ T1] ___preempt_schedule+0x16/0x18 [ 35.214932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.214932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.214932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.214932][ T1] ? kasan_check_read+0x11/0x20 [ 35.214932][ T1] wake_up_process+0x10/0x20 [ 35.214932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.214932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.214932][ T1] ? find_held_lock+0x35/0x130 [ 35.214932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.214932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.214932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.214932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.214932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.214932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.214932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.214932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.214932][ T1] alloc_workqueue+0x669/0xf00 [ 35.214932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.214932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.214932][ T1] ? cpumask_next+0x41/0x50 [ 35.214932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.214932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.214932][ T1] init_mm_internals+0x24/0x3c9 [ 35.214932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.214932][ T1] ? rest_init+0x37b/0x37b [ 35.214932][ T1] kernel_init+0x12/0x1c5 [ 35.214932][ T1] ret_from_fork+0x24/0x30 [ 35.214971][ T2] mmdrop (____ptrval____) before 4 [ 35.220201][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.224932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.224932][ T2] Call Trace: [ 35.224932][ T2] dump_stack+0x172/0x1f0 [ 35.224932][ T2] finish_task_switch+0x239/0x790 [ 35.224932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.224932][ T2] __schedule+0x7d3/0x1580 [ 35.224932][ T2] ? __sched_text_start+0x8/0x8 [ 35.224932][ T2] schedule+0xa8/0x260 [ 35.224932][ T2] kthreadd+0x5cc/0x740 [ 35.224932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.224932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.224932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.224932][ T2] ret_from_fork+0x24/0x30 [ 35.224978][ T2] mmgrab (____ptrval____) to 4 [ 35.229753][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.234932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.234932][ T2] Call Trace: [ 35.234932][ T2] dump_stack+0x172/0x1f0 [ 35.234932][ T2] __schedule+0xd03/0x1580 [ 35.234932][ T2] ? __sched_text_start+0x8/0x8 [ 35.234932][ T2] schedule+0xa8/0x260 [ 35.234932][ T2] kthreadd+0x5cc/0x740 [ 35.234932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.234932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.234932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.234932][ T2] ret_from_fork+0x24/0x30 [ 35.234963][ T8] mmdrop (____ptrval____) before 4 [ 35.240229][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.244932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.244932][ T8] Call Trace: [ 35.244932][ T8] dump_stack+0x172/0x1f0 [ 35.244932][ T8] finish_task_switch+0x239/0x790 [ 35.244932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.244932][ T8] __schedule+0x7d3/0x1580 [ 35.244932][ T8] ? __sched_text_start+0x8/0x8 [ 35.244932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.244932][ T8] schedule+0xa8/0x260 [ 35.244932][ T8] kthread+0x27a/0x420 [ 35.244932][ T8] ? process_one_work+0x1790/0x1790 [ 35.244932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.244932][ T8] ret_from_fork+0x24/0x30 [ 35.245056][ T8] mmgrab (____ptrval____) to 4 [ 35.249983][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.254932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.254932][ T8] Call Trace: [ 35.254932][ T8] dump_stack+0x172/0x1f0 [ 35.254932][ T8] __schedule+0xd03/0x1580 [ 35.254932][ T8] ? __sched_text_start+0x8/0x8 [ 35.254932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.254932][ T8] schedule+0xa8/0x260 [ 35.254932][ T8] kthread+0x27a/0x420 [ 35.254932][ T8] ? process_one_work+0x1790/0x1790 [ 35.254932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.254932][ T8] ret_from_fork+0x24/0x30 [ 35.254964][ T7] mmdrop (____ptrval____) before 4 [ 35.264968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.272248][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.274932][ T7] Workqueue: 0x0 (events) [ 35.274932][ T7] Call Trace: [ 35.274932][ T7] dump_stack+0x172/0x1f0 [ 35.274932][ T7] finish_task_switch+0x239/0x790 [ 35.274932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.274932][ T7] __schedule+0x7d3/0x1580 [ 35.274932][ T7] ? __sched_text_start+0x8/0x8 [ 35.274932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.274932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.274932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.274932][ T7] ? kthread_data+0x58/0xc0 [ 35.274932][ T7] schedule+0xa8/0x260 [ 35.274932][ T7] worker_thread+0x248/0xe40 [ 35.274932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.274932][ T7] kthread+0x354/0x420 [ 35.274932][ T7] ? process_one_work+0x1790/0x1790 [ 35.274932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.274932][ T7] ret_from_fork+0x24/0x30 [ 35.274975][ T7] mmgrab (____ptrval____) to 4 [ 35.279889][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.284932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.284932][ T7] Workqueue: 0x0 (events) [ 35.284932][ T7] Call Trace: [ 35.284932][ T7] dump_stack+0x172/0x1f0 [ 35.284932][ T7] __schedule+0xd03/0x1580 [ 35.284932][ T7] ? __sched_text_start+0x8/0x8 [ 35.284932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.284932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.284932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.284932][ T7] ? kthread_data+0x58/0xc0 [ 35.284932][ T7] schedule+0xa8/0x260 [ 35.284932][ T7] worker_thread+0x248/0xe40 [ 35.284932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.284932][ T7] kthread+0x354/0x420 [ 35.284932][ T7] ? process_one_work+0x1790/0x1790 [ 35.284932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.284932][ T7] ret_from_fork+0x24/0x30 [ 35.284963][ T1] mmdrop (____ptrval____) before 4 [ 35.294971][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.302209][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.304932][ T1] Call Trace: [ 35.304932][ T1] dump_stack+0x172/0x1f0 [ 35.304932][ T1] finish_task_switch+0x239/0x790 [ 35.304932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.304932][ T1] __schedule+0x7d3/0x1580 [ 35.304932][ T1] ? __sched_text_start+0x8/0x8 [ 35.304932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.304932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.304932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.304932][ T1] preempt_schedule+0x4b/0x60 [ 35.304932][ T1] ___preempt_schedule+0x16/0x18 [ 35.304932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.304932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.304932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.304932][ T1] ? kasan_check_read+0x11/0x20 [ 35.304932][ T1] wake_up_process+0x10/0x20 [ 35.304932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.304932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.304932][ T1] ? find_held_lock+0x35/0x130 [ 35.304932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.304932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.304932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.304932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.304932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.304932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.304932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.304932][ T1] alloc_workqueue+0x669/0xf00 [ 35.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.304932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.304932][ T1] ? cpumask_next+0x41/0x50 [ 35.304932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.304932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.304932][ T1] init_mm_internals+0x24/0x3c9 [ 35.304932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.304932][ T1] ? rest_init+0x37b/0x37b [ 35.304932][ T1] kernel_init+0x12/0x1c5 [ 35.304932][ T1] ret_from_fork+0x24/0x30 [ 35.304974][ T1] mmgrab (____ptrval____) to 4 [ 35.309850][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.314932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.314932][ T1] Call Trace: [ 35.314932][ T1] dump_stack+0x172/0x1f0 [ 35.314932][ T1] __schedule+0xd03/0x1580 [ 35.314932][ T1] ? __sched_text_start+0x8/0x8 [ 35.314932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.314932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.314932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.314932][ T1] preempt_schedule+0x4b/0x60 [ 35.314932][ T1] ___preempt_schedule+0x16/0x18 [ 35.314932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.314932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.314932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.314932][ T1] ? kasan_check_read+0x11/0x20 [ 35.314932][ T1] wake_up_process+0x10/0x20 [ 35.314932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.314932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.314932][ T1] ? find_held_lock+0x35/0x130 [ 35.314932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.314932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.314932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.314932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.314932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.314932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.314932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.314932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.314932][ T1] alloc_workqueue+0x669/0xf00 [ 35.314932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.314932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.314932][ T1] ? cpumask_next+0x41/0x50 [ 35.314932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.314932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.314932][ T1] init_mm_internals+0x24/0x3c9 [ 35.314932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.314932][ T1] ? rest_init+0x37b/0x37b [ 35.314932][ T1] kernel_init+0x12/0x1c5 [ 35.314932][ T1] ret_from_fork+0x24/0x30 [ 35.314963][ T2] mmdrop (____ptrval____) before 4 [ 35.324975][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.331998][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.334932][ T2] Call Trace: [ 35.334932][ T2] dump_stack+0x172/0x1f0 [ 35.334932][ T2] finish_task_switch+0x239/0x790 [ 35.334932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.334932][ T2] __schedule+0x7d3/0x1580 [ 35.334932][ T2] ? __sched_text_start+0x8/0x8 [ 35.334932][ T2] schedule+0xa8/0x260 [ 35.334932][ T2] kthreadd+0x5cc/0x740 [ 35.334932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.334932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.334932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.334932][ T2] ret_from_fork+0x24/0x30 [ 35.334978][ T2] mmgrab (____ptrval____) to 4 [ 35.339733][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.344932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.344932][ T2] Call Trace: [ 35.344932][ T2] dump_stack+0x172/0x1f0 [ 35.344932][ T2] __schedule+0xd03/0x1580 [ 35.344932][ T2] ? __sched_text_start+0x8/0x8 [ 35.344932][ T2] schedule+0xa8/0x260 [ 35.344932][ T2] kthreadd+0x5cc/0x740 [ 35.344932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.344932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.344932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.344932][ T2] ret_from_fork+0x24/0x30 [ 35.344962][ T8] mmdrop (____ptrval____) before 4 [ 35.350081][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.354932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.354932][ T8] Call Trace: [ 35.354932][ T8] dump_stack+0x172/0x1f0 [ 35.354932][ T8] finish_task_switch+0x239/0x790 [ 35.354932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.354932][ T8] __schedule+0x7d3/0x1580 [ 35.354932][ T8] ? __sched_text_start+0x8/0x8 [ 35.354932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.354932][ T8] schedule+0xa8/0x260 [ 35.354932][ T8] kthread+0x27a/0x420 [ 35.354932][ T8] ? process_one_work+0x1790/0x1790 [ 35.354932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.354932][ T8] ret_from_fork+0x24/0x30 [ 35.354974][ T8] mmgrab (____ptrval____) to 4 [ 35.359744][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.364932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.364932][ T8] Call Trace: [ 35.364932][ T8] dump_stack+0x172/0x1f0 [ 35.364932][ T8] __schedule+0xd03/0x1580 [ 35.364932][ T8] ? __sched_text_start+0x8/0x8 [ 35.364932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.364932][ T8] schedule+0xa8/0x260 [ 35.364932][ T8] kthread+0x27a/0x420 [ 35.364932][ T8] ? process_one_work+0x1790/0x1790 [ 35.364932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.364932][ T8] ret_from_fork+0x24/0x30 [ 35.364963][ T7] mmdrop (____ptrval____) before 4 [ 35.370080][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.374932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.374932][ T7] Workqueue: 0x0 (events) [ 35.374932][ T7] Call Trace: [ 35.374932][ T7] dump_stack+0x172/0x1f0 [ 35.374932][ T7] finish_task_switch+0x239/0x790 [ 35.374932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.374932][ T7] __schedule+0x7d3/0x1580 [ 35.374932][ T7] ? __sched_text_start+0x8/0x8 [ 35.374932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.374932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.374932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.374932][ T7] ? kthread_data+0x58/0xc0 [ 35.374932][ T7] schedule+0xa8/0x260 [ 35.374932][ T7] worker_thread+0x248/0xe40 [ 35.374932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.374932][ T7] kthread+0x354/0x420 [ 35.374932][ T7] ? process_one_work+0x1790/0x1790 [ 35.374932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.374932][ T7] ret_from_fork+0x24/0x30 [ 35.374982][ T7] mmgrab (____ptrval____) to 4 [ 35.379796][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.384932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.384932][ T7] Workqueue: 0x0 (events) [ 35.384932][ T7] Call Trace: [ 35.384932][ T7] dump_stack+0x172/0x1f0 [ 35.384932][ T7] __schedule+0xd03/0x1580 [ 35.384932][ T7] ? __sched_text_start+0x8/0x8 [ 35.384932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.384932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.384932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.384932][ T7] ? kthread_data+0x58/0xc0 [ 35.384932][ T7] schedule+0xa8/0x260 [ 35.384932][ T7] worker_thread+0x248/0xe40 [ 35.384932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.384932][ T7] kthread+0x354/0x420 [ 35.384932][ T7] ? process_one_work+0x1790/0x1790 [ 35.384932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.384932][ T7] ret_from_fork+0x24/0x30 [ 35.384967][ T8] mmdrop (____ptrval____) before 4 [ 35.390168][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.394932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.394932][ T8] Call Trace: [ 35.394932][ T8] dump_stack+0x172/0x1f0 [ 35.394932][ T8] finish_task_switch+0x239/0x790 [ 35.394932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.394932][ T8] __schedule+0x7d3/0x1580 [ 35.394932][ T8] ? __sched_text_start+0x8/0x8 [ 35.394932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.394932][ T8] schedule+0xa8/0x260 [ 35.394932][ T8] kthread+0x27a/0x420 [ 35.394932][ T8] ? process_one_work+0x1790/0x1790 [ 35.394932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.394932][ T8] ret_from_fork+0x24/0x30 [ 35.394976][ T8] mmgrab (____ptrval____) to 4 [ 35.399855][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.404932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.404932][ T8] Call Trace: [ 35.404932][ T8] dump_stack+0x172/0x1f0 [ 35.404932][ T8] __schedule+0xd03/0x1580 [ 35.404932][ T8] ? __sched_text_start+0x8/0x8 [ 35.404932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.404932][ T8] schedule+0xa8/0x260 [ 35.404932][ T8] kthread+0x27a/0x420 [ 35.404932][ T8] ? process_one_work+0x1790/0x1790 [ 35.404932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.404932][ T8] ret_from_fork+0x24/0x30 [ 35.404968][ T1] mmdrop (____ptrval____) before 4 [ 35.410089][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.414932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.414932][ T1] Call Trace: [ 35.414932][ T1] dump_stack+0x172/0x1f0 [ 35.414932][ T1] finish_task_switch+0x239/0x790 [ 35.414932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.414932][ T1] __schedule+0x7d3/0x1580 [ 35.414932][ T1] ? __sched_text_start+0x8/0x8 [ 35.414932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.414932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.414932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.414932][ T1] preempt_schedule+0x4b/0x60 [ 35.414932][ T1] ___preempt_schedule+0x16/0x18 [ 35.414932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.414932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.414932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.414932][ T1] ? kasan_check_read+0x11/0x20 [ 35.414932][ T1] wake_up_process+0x10/0x20 [ 35.414932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.414932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.414932][ T1] ? find_held_lock+0x35/0x130 [ 35.414932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.414932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.414932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.414932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.414932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.414932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.414932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.414932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.414932][ T1] alloc_workqueue+0x669/0xf00 [ 35.414932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.414932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.414932][ T1] ? cpumask_next+0x41/0x50 [ 35.414932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.414932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.414932][ T1] init_mm_internals+0x24/0x3c9 [ 35.414932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.414932][ T1] ? rest_init+0x37b/0x37b [ 35.414932][ T1] kernel_init+0x12/0x1c5 [ 35.414932][ T1] ret_from_fork+0x24/0x30 [ 35.414974][ T1] mmgrab (____ptrval____) to 4 [ 35.419782][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.424932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.424932][ T1] Call Trace: [ 35.424932][ T1] dump_stack+0x172/0x1f0 [ 35.424932][ T1] __schedule+0xd03/0x1580 [ 35.424932][ T1] ? __sched_text_start+0x8/0x8 [ 35.424932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.424932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.424932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.424932][ T1] preempt_schedule+0x4b/0x60 [ 35.424932][ T1] ___preempt_schedule+0x16/0x18 [ 35.424932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.424932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.424932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.424932][ T1] ? kasan_check_read+0x11/0x20 [ 35.424932][ T1] wake_up_process+0x10/0x20 [ 35.424932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.424932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.424932][ T1] ? find_held_lock+0x35/0x130 [ 35.424932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.424932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.424932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.424932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.424932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.424932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.424932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.424932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.424932][ T1] alloc_workqueue+0x669/0xf00 [ 35.424932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.424932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.424932][ T1] ? cpumask_next+0x41/0x50 [ 35.424932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.424932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.424932][ T1] init_mm_internals+0x24/0x3c9 [ 35.424932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.424932][ T1] ? rest_init+0x37b/0x37b [ 35.424932][ T1] kernel_init+0x12/0x1c5 [ 35.424932][ T1] ret_from_fork+0x24/0x30 [ 35.424962][ T2] mmdrop (____ptrval____) before 4 [ 35.434970][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.441990][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.444932][ T2] Call Trace: [ 35.444932][ T2] dump_stack+0x172/0x1f0 [ 35.444932][ T2] finish_task_switch+0x239/0x790 [ 35.444932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.444932][ T2] __schedule+0x7d3/0x1580 [ 35.444932][ T2] ? __sched_text_start+0x8/0x8 [ 35.444932][ T2] schedule+0xa8/0x260 [ 35.444932][ T2] kthreadd+0x5cc/0x740 [ 35.444932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.444932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.444932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.444932][ T2] ret_from_fork+0x24/0x30 [ 35.444974][ T2] mmgrab (____ptrval____) to 4 [ 35.449749][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.454932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.454932][ T2] Call Trace: [ 35.454932][ T2] dump_stack+0x172/0x1f0 [ 35.454932][ T2] __schedule+0xd03/0x1580 [ 35.454932][ T2] ? __sched_text_start+0x8/0x8 [ 35.454932][ T2] schedule+0xa8/0x260 [ 35.454932][ T2] kthreadd+0x5cc/0x740 [ 35.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.454932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.454932][ T2] ret_from_fork+0x24/0x30 [ 35.454962][ T7] mmdrop (____ptrval____) before 4 [ 35.460096][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.464932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.464932][ T7] Workqueue: 0x0 (events) [ 35.464932][ T7] Call Trace: [ 35.464932][ T7] dump_stack+0x172/0x1f0 [ 35.464932][ T7] finish_task_switch+0x239/0x790 [ 35.464932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.464932][ T7] __schedule+0x7d3/0x1580 [ 35.464932][ T7] ? __sched_text_start+0x8/0x8 [ 35.464932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.464932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.464932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.464932][ T7] ? kthread_data+0x58/0xc0 [ 35.464932][ T7] schedule+0xa8/0x260 [ 35.464932][ T7] worker_thread+0x248/0xe40 [ 35.464932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.464932][ T7] kthread+0x354/0x420 [ 35.464932][ T7] ? process_one_work+0x1790/0x1790 [ 35.464932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.464932][ T7] ret_from_fork+0x24/0x30 [ 35.464984][ T7] mmgrab (____ptrval____) to 4 [ 35.469857][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.474932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.474932][ T7] Workqueue: 0x0 (events) [ 35.474932][ T7] Call Trace: [ 35.474932][ T7] dump_stack+0x172/0x1f0 [ 35.474932][ T7] __schedule+0xd03/0x1580 [ 35.474932][ T7] ? __sched_text_start+0x8/0x8 [ 35.474932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.474932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.474932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.474932][ T7] ? kthread_data+0x58/0xc0 [ 35.474932][ T7] schedule+0xa8/0x260 [ 35.474932][ T7] worker_thread+0x248/0xe40 [ 35.474932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.474932][ T7] kthread+0x354/0x420 [ 35.474932][ T7] ? process_one_work+0x1790/0x1790 [ 35.474932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.474932][ T7] ret_from_fork+0x24/0x30 [ 35.474967][ T8] mmdrop (____ptrval____) before 4 [ 35.480095][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.484932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.484932][ T8] Call Trace: [ 35.484932][ T8] dump_stack+0x172/0x1f0 [ 35.484932][ T8] finish_task_switch+0x239/0x790 [ 35.484932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.484932][ T8] __schedule+0x7d3/0x1580 [ 35.484932][ T8] ? __sched_text_start+0x8/0x8 [ 35.484932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.484932][ T8] schedule+0xa8/0x260 [ 35.484932][ T8] kthread+0x27a/0x420 [ 35.484932][ T8] ? process_one_work+0x1790/0x1790 [ 35.484932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.484932][ T8] ret_from_fork+0x24/0x30 [ 35.484978][ T8] mmgrab (____ptrval____) to 4 [ 35.489976][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.494932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.494932][ T8] Call Trace: [ 35.494932][ T8] dump_stack+0x172/0x1f0 [ 35.494932][ T8] __schedule+0xd03/0x1580 [ 35.494932][ T8] ? __sched_text_start+0x8/0x8 [ 35.494932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.494932][ T8] schedule+0xa8/0x260 [ 35.494932][ T8] kthread+0x27a/0x420 [ 35.494932][ T8] ? process_one_work+0x1790/0x1790 [ 35.494932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.494932][ T8] ret_from_fork+0x24/0x30 [ 35.494964][ T1] mmdrop (____ptrval____) before 4 [ 35.504975][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.512227][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.514932][ T1] Call Trace: [ 35.514932][ T1] dump_stack+0x172/0x1f0 [ 35.514932][ T1] finish_task_switch+0x239/0x790 [ 35.514932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.514932][ T1] __schedule+0x7d3/0x1580 [ 35.514932][ T1] ? __sched_text_start+0x8/0x8 [ 35.514932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.514932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.514932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.514932][ T1] preempt_schedule+0x4b/0x60 [ 35.514932][ T1] ___preempt_schedule+0x16/0x18 [ 35.514932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.514932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.514932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.514932][ T1] ? kasan_check_read+0x11/0x20 [ 35.514932][ T1] wake_up_process+0x10/0x20 [ 35.514932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.514932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.514932][ T1] ? find_held_lock+0x35/0x130 [ 35.514932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.514932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.514932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.514932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.514932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.514932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.514932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.514932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.514932][ T1] alloc_workqueue+0x669/0xf00 [ 35.514932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.514932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.514932][ T1] ? cpumask_next+0x41/0x50 [ 35.514932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.514932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.514932][ T1] init_mm_internals+0x24/0x3c9 [ 35.514932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.514932][ T1] ? rest_init+0x37b/0x37b [ 35.514932][ T1] kernel_init+0x12/0x1c5 [ 35.514932][ T1] ret_from_fork+0x24/0x30 [ 35.514998][ T1] mmgrab (____ptrval____) to 4 [ 35.519766][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.524932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.524932][ T1] Call Trace: [ 35.524932][ T1] dump_stack+0x172/0x1f0 [ 35.524932][ T1] __schedule+0xd03/0x1580 [ 35.524932][ T1] ? __sched_text_start+0x8/0x8 [ 35.524932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.524932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.524932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.524932][ T1] preempt_schedule+0x4b/0x60 [ 35.524932][ T1] ___preempt_schedule+0x16/0x18 [ 35.524932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.524932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.524932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.524932][ T1] ? kasan_check_read+0x11/0x20 [ 35.524932][ T1] wake_up_process+0x10/0x20 [ 35.524932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.524932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.524932][ T1] ? find_held_lock+0x35/0x130 [ 35.524932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.524932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.524932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.524932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.524932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.524932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.524932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.524932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.524932][ T1] alloc_workqueue+0x669/0xf00 [ 35.524932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.524932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.524932][ T1] ? cpumask_next+0x41/0x50 [ 35.524932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.524932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.524932][ T1] init_mm_internals+0x24/0x3c9 [ 35.524932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.524932][ T1] ? rest_init+0x37b/0x37b [ 35.524932][ T1] kernel_init+0x12/0x1c5 [ 35.524932][ T1] ret_from_fork+0x24/0x30 [ 35.524962][ T2] mmdrop (____ptrval____) before 4 [ 35.534972][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.541991][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.544932][ T2] Call Trace: [ 35.544932][ T2] dump_stack+0x172/0x1f0 [ 35.544932][ T2] finish_task_switch+0x239/0x790 [ 35.544932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.544932][ T2] __schedule+0x7d3/0x1580 [ 35.544932][ T2] ? __sched_text_start+0x8/0x8 [ 35.544932][ T2] schedule+0xa8/0x260 [ 35.544932][ T2] kthreadd+0x5cc/0x740 [ 35.544932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.544932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.544932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.544932][ T2] ret_from_fork+0x24/0x30 [ 35.544976][ T2] mmgrab (____ptrval____) to 4 [ 35.549769][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.554932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.554932][ T2] Call Trace: [ 35.554932][ T2] dump_stack+0x172/0x1f0 [ 35.554932][ T2] __schedule+0xd03/0x1580 [ 35.554932][ T2] ? __sched_text_start+0x8/0x8 [ 35.554932][ T2] schedule+0xa8/0x260 [ 35.554932][ T2] kthreadd+0x5cc/0x740 [ 35.554932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.554932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.554932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.554932][ T2] ret_from_fork+0x24/0x30 [ 35.554964][ T7] mmdrop (____ptrval____) before 4 [ 35.560333][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.564932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.564932][ T7] Workqueue: 0x0 (events) [ 35.564932][ T7] Call Trace: [ 35.564932][ T7] dump_stack+0x172/0x1f0 [ 35.564932][ T7] finish_task_switch+0x239/0x790 [ 35.564932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.564932][ T7] __schedule+0x7d3/0x1580 [ 35.564932][ T7] ? __sched_text_start+0x8/0x8 [ 35.564932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.564932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.564932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.564932][ T7] ? kthread_data+0x58/0xc0 [ 35.564932][ T7] schedule+0xa8/0x260 [ 35.564932][ T7] worker_thread+0x248/0xe40 [ 35.564932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.564932][ T7] kthread+0x354/0x420 [ 35.564932][ T7] ? process_one_work+0x1790/0x1790 [ 35.564932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.564932][ T7] ret_from_fork+0x24/0x30 [ 35.564975][ T7] mmgrab (____ptrval____) to 4 [ 35.569830][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.574932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.574932][ T7] Workqueue: 0x0 (events) [ 35.574932][ T7] Call Trace: [ 35.574932][ T7] dump_stack+0x172/0x1f0 [ 35.574932][ T7] __schedule+0xd03/0x1580 [ 35.574932][ T7] ? __sched_text_start+0x8/0x8 [ 35.574932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.574932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.574932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.574932][ T7] ? kthread_data+0x58/0xc0 [ 35.574932][ T7] schedule+0xa8/0x260 [ 35.574932][ T7] worker_thread+0x248/0xe40 [ 35.574932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.574932][ T7] kthread+0x354/0x420 [ 35.574932][ T7] ? process_one_work+0x1790/0x1790 [ 35.574932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.574932][ T7] ret_from_fork+0x24/0x30 [ 35.574963][ T8] mmdrop (____ptrval____) before 4 [ 35.580185][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.584932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.584932][ T8] Call Trace: [ 35.584932][ T8] dump_stack+0x172/0x1f0 [ 35.584932][ T8] finish_task_switch+0x239/0x790 [ 35.584932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.584932][ T8] __schedule+0x7d3/0x1580 [ 35.584932][ T8] ? __sched_text_start+0x8/0x8 [ 35.584932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.584932][ T8] schedule+0xa8/0x260 [ 35.584932][ T8] kthread+0x27a/0x420 [ 35.584932][ T8] ? process_one_work+0x1790/0x1790 [ 35.584932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.584932][ T8] ret_from_fork+0x24/0x30 [ 35.584976][ T8] mmgrab (____ptrval____) to 4 [ 35.589745][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.594932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.594932][ T8] Call Trace: [ 35.594932][ T8] dump_stack+0x172/0x1f0 [ 35.594932][ T8] __schedule+0xd03/0x1580 [ 35.594932][ T8] ? __sched_text_start+0x8/0x8 [ 35.594932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.594932][ T8] schedule+0xa8/0x260 [ 35.594932][ T8] kthread+0x27a/0x420 [ 35.594932][ T8] ? process_one_work+0x1790/0x1790 [ 35.594932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.594932][ T8] ret_from_fork+0x24/0x30 [ 35.594964][ T1] mmdrop (____ptrval____) before 4 [ 35.600074][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.604932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.604932][ T1] Call Trace: [ 35.604932][ T1] dump_stack+0x172/0x1f0 [ 35.604932][ T1] finish_task_switch+0x239/0x790 [ 35.604932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.604932][ T1] __schedule+0x7d3/0x1580 [ 35.604932][ T1] ? __sched_text_start+0x8/0x8 [ 35.604932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.604932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.604932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.604932][ T1] preempt_schedule+0x4b/0x60 [ 35.604932][ T1] ___preempt_schedule+0x16/0x18 [ 35.604932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.604932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.604932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.604932][ T1] ? kasan_check_read+0x11/0x20 [ 35.604932][ T1] wake_up_process+0x10/0x20 [ 35.604932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.604932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.604932][ T1] ? find_held_lock+0x35/0x130 [ 35.604932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.604932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.604932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.604932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.604932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.604932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.604932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.604932][ T1] alloc_workqueue+0x669/0xf00 [ 35.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.604932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.604932][ T1] ? cpumask_next+0x41/0x50 [ 35.604932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.604932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.604932][ T1] init_mm_internals+0x24/0x3c9 [ 35.604932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.604932][ T1] ? rest_init+0x37b/0x37b [ 35.604932][ T1] kernel_init+0x12/0x1c5 [ 35.604932][ T1] ret_from_fork+0x24/0x30 [ 35.604975][ T1] mmgrab (____ptrval____) to 4 [ 35.609888][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.614932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.614932][ T1] Call Trace: [ 35.614932][ T1] dump_stack+0x172/0x1f0 [ 35.614932][ T1] __schedule+0xd03/0x1580 [ 35.614932][ T1] ? __sched_text_start+0x8/0x8 [ 35.614932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.614932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.614932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.614932][ T1] preempt_schedule+0x4b/0x60 [ 35.614932][ T1] ___preempt_schedule+0x16/0x18 [ 35.614932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.614932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.614932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.614932][ T1] ? kasan_check_read+0x11/0x20 [ 35.614932][ T1] wake_up_process+0x10/0x20 [ 35.614932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.614932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.614932][ T1] ? find_held_lock+0x35/0x130 [ 35.614932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.614932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.614932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.614932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.614932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.614932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.614932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.614932][ T1] alloc_workqueue+0x669/0xf00 [ 35.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.614932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.614932][ T1] ? cpumask_next+0x41/0x50 [ 35.614932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.614932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.614932][ T1] init_mm_internals+0x24/0x3c9 [ 35.614932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.614932][ T1] ? rest_init+0x37b/0x37b [ 35.614932][ T1] kernel_init+0x12/0x1c5 [ 35.614932][ T1] ret_from_fork+0x24/0x30 [ 35.614961][ T7] mmdrop (____ptrval____) before 4 [ 35.624967][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.632248][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.634932][ T7] Workqueue: 0x0 (events) [ 35.634932][ T7] Call Trace: [ 35.634932][ T7] dump_stack+0x172/0x1f0 [ 35.634932][ T7] finish_task_switch+0x239/0x790 [ 35.634932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.634932][ T7] __schedule+0x7d3/0x1580 [ 35.634932][ T7] ? __sched_text_start+0x8/0x8 [ 35.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.634932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.634932][ T7] ? kthread_data+0x58/0xc0 [ 35.634932][ T7] schedule+0xa8/0x260 [ 35.634932][ T7] worker_thread+0x248/0xe40 [ 35.634932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.634932][ T7] kthread+0x354/0x420 [ 35.634932][ T7] ? process_one_work+0x1790/0x1790 [ 35.634932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.634932][ T7] ret_from_fork+0x24/0x30 [ 35.634980][ T7] mmgrab (____ptrval____) to 4 [ 35.639756][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.644932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.644932][ T7] Workqueue: 0x0 (events) [ 35.644932][ T7] Call Trace: [ 35.644932][ T7] dump_stack+0x172/0x1f0 [ 35.644932][ T7] __schedule+0xd03/0x1580 [ 35.644932][ T7] ? __sched_text_start+0x8/0x8 [ 35.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.644932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.644932][ T7] ? kthread_data+0x58/0xc0 [ 35.644932][ T7] schedule+0xa8/0x260 [ 35.644932][ T7] worker_thread+0x248/0xe40 [ 35.644932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.644932][ T7] kthread+0x354/0x420 [ 35.644932][ T7] ? process_one_work+0x1790/0x1790 [ 35.644932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.644932][ T7] ret_from_fork+0x24/0x30 [ 35.644965][ T2] mmdrop (____ptrval____) before 4 [ 35.654968][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.661983][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.664932][ T2] Call Trace: [ 35.664932][ T2] dump_stack+0x172/0x1f0 [ 35.664932][ T2] finish_task_switch+0x239/0x790 [ 35.664932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.664932][ T2] __schedule+0x7d3/0x1580 [ 35.664932][ T2] ? __sched_text_start+0x8/0x8 [ 35.664932][ T2] schedule+0xa8/0x260 [ 35.664932][ T2] kthreadd+0x5cc/0x740 [ 35.664932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.664932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.664932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.664932][ T2] ret_from_fork+0x24/0x30 [ 35.664973][ T2] mmgrab (____ptrval____) to 4 [ 35.669729][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.674932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.674932][ T2] Call Trace: [ 35.674932][ T2] dump_stack+0x172/0x1f0 [ 35.674932][ T2] __schedule+0xd03/0x1580 [ 35.674932][ T2] ? __sched_text_start+0x8/0x8 [ 35.674932][ T2] schedule+0xa8/0x260 [ 35.674932][ T2] kthreadd+0x5cc/0x740 [ 35.674932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.674932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.674932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.674932][ T2] ret_from_fork+0x24/0x30 [ 35.674960][ T8] mmdrop (____ptrval____) before 4 [ 35.680256][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.684932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.684932][ T8] Call Trace: [ 35.684932][ T8] dump_stack+0x172/0x1f0 [ 35.684932][ T8] finish_task_switch+0x239/0x790 [ 35.684932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.684932][ T8] __schedule+0x7d3/0x1580 [ 35.684932][ T8] ? __sched_text_start+0x8/0x8 [ 35.684932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.684932][ T8] schedule+0xa8/0x260 [ 35.684932][ T8] kthread+0x27a/0x420 [ 35.684932][ T8] ? process_one_work+0x1790/0x1790 [ 35.684932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.684932][ T8] ret_from_fork+0x24/0x30 [ 35.684977][ T8] mmgrab (____ptrval____) to 4 [ 35.689731][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.694932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.694932][ T8] Call Trace: [ 35.694932][ T8] dump_stack+0x172/0x1f0 [ 35.694932][ T8] __schedule+0xd03/0x1580 [ 35.694932][ T8] ? __sched_text_start+0x8/0x8 [ 35.694932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.694932][ T8] schedule+0xa8/0x260 [ 35.694932][ T8] kthread+0x27a/0x420 [ 35.694932][ T8] ? process_one_work+0x1790/0x1790 [ 35.694932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.694932][ T8] ret_from_fork+0x24/0x30 [ 35.694962][ T1] mmdrop (____ptrval____) before 4 [ 35.700172][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.704932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.704932][ T1] Call Trace: [ 35.704932][ T1] dump_stack+0x172/0x1f0 [ 35.704932][ T1] finish_task_switch+0x239/0x790 [ 35.704932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.704932][ T1] __schedule+0x7d3/0x1580 [ 35.704932][ T1] ? __sched_text_start+0x8/0x8 [ 35.704932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.704932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.704932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.704932][ T1] preempt_schedule+0x4b/0x60 [ 35.704932][ T1] ___preempt_schedule+0x16/0x18 [ 35.704932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.704932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.704932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.704932][ T1] ? kasan_check_read+0x11/0x20 [ 35.704932][ T1] wake_up_process+0x10/0x20 [ 35.704932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.704932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.704932][ T1] ? find_held_lock+0x35/0x130 [ 35.704932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.704932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.704932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.704932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.704932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.704932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.704932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.704932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.704932][ T1] alloc_workqueue+0x669/0xf00 [ 35.704932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.704932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.704932][ T1] ? cpumask_next+0x41/0x50 [ 35.704932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.704932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.704932][ T1] init_mm_internals+0x24/0x3c9 [ 35.704932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.704932][ T1] ? rest_init+0x37b/0x37b [ 35.704932][ T1] kernel_init+0x12/0x1c5 [ 35.704932][ T1] ret_from_fork+0x24/0x30 [ 35.704974][ T1] mmgrab (____ptrval____) to 4 [ 35.709754][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.714932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.714932][ T1] Call Trace: [ 35.714932][ T1] dump_stack+0x172/0x1f0 [ 35.714932][ T1] __schedule+0xd03/0x1580 [ 35.714932][ T1] ? __sched_text_start+0x8/0x8 [ 35.714932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.714932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.714932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.714932][ T1] preempt_schedule+0x4b/0x60 [ 35.714932][ T1] ___preempt_schedule+0x16/0x18 [ 35.714932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.714932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.714932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.714932][ T1] ? kasan_check_read+0x11/0x20 [ 35.714932][ T1] wake_up_process+0x10/0x20 [ 35.714932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.714932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.714932][ T1] ? find_held_lock+0x35/0x130 [ 35.714932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.714932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.714932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.714932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.714932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.714932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.714932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.714932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.714932][ T1] alloc_workqueue+0x669/0xf00 [ 35.714932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.714932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.714932][ T1] ? cpumask_next+0x41/0x50 [ 35.714932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.714932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.714932][ T1] init_mm_internals+0x24/0x3c9 [ 35.714932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.714932][ T1] ? rest_init+0x37b/0x37b [ 35.714932][ T1] kernel_init+0x12/0x1c5 [ 35.714932][ T1] ret_from_fork+0x24/0x30 [ 35.714967][ T7] mmdrop (____ptrval____) before 4 [ 35.720092][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.724932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.724932][ T7] Workqueue: 0x0 (events) [ 35.724932][ T7] Call Trace: [ 35.724932][ T7] dump_stack+0x172/0x1f0 [ 35.724932][ T7] finish_task_switch+0x239/0x790 [ 35.724932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.724932][ T7] __schedule+0x7d3/0x1580 [ 35.724932][ T7] ? __sched_text_start+0x8/0x8 [ 35.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.724932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.724932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.724932][ T7] ? kthread_data+0x58/0xc0 [ 35.724932][ T7] schedule+0xa8/0x260 [ 35.724932][ T7] worker_thread+0x248/0xe40 [ 35.724932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.724932][ T7] kthread+0x354/0x420 [ 35.724932][ T7] ? process_one_work+0x1790/0x1790 [ 35.724932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.724932][ T7] ret_from_fork+0x24/0x30 [ 35.724977][ T7] mmgrab (____ptrval____) to 4 [ 35.729932][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.734932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.734932][ T7] Workqueue: 0x0 (events) [ 35.734932][ T7] Call Trace: [ 35.734932][ T7] dump_stack+0x172/0x1f0 [ 35.734932][ T7] __schedule+0xd03/0x1580 [ 35.734932][ T7] ? __sched_text_start+0x8/0x8 [ 35.734932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.734932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.734932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.734932][ T7] ? kthread_data+0x58/0xc0 [ 35.734932][ T7] schedule+0xa8/0x260 [ 35.734932][ T7] worker_thread+0x248/0xe40 [ 35.734932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.734932][ T7] kthread+0x354/0x420 [ 35.734932][ T7] ? process_one_work+0x1790/0x1790 [ 35.734932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.734932][ T7] ret_from_fork+0x24/0x30 [ 35.734962][ T2] mmdrop (____ptrval____) before 4 [ 35.740135][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.744932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.744932][ T2] Call Trace: [ 35.744932][ T2] dump_stack+0x172/0x1f0 [ 35.744932][ T2] finish_task_switch+0x239/0x790 [ 35.744932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.744932][ T2] __schedule+0x7d3/0x1580 [ 35.744932][ T2] ? __sched_text_start+0x8/0x8 [ 35.744932][ T2] schedule+0xa8/0x260 [ 35.744932][ T2] kthreadd+0x5cc/0x740 [ 35.744932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.744932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.744932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.744932][ T2] ret_from_fork+0x24/0x30 [ 35.744988][ T2] mmgrab (____ptrval____) to 4 [ 35.749899][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.754932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.754932][ T2] Call Trace: [ 35.754932][ T2] dump_stack+0x172/0x1f0 [ 35.754932][ T2] __schedule+0xd03/0x1580 [ 35.754932][ T2] ? __sched_text_start+0x8/0x8 [ 35.754932][ T2] schedule+0xa8/0x260 [ 35.754932][ T2] kthreadd+0x5cc/0x740 [ 35.754932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.754932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.754932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.754932][ T2] ret_from_fork+0x24/0x30 [ 35.754962][ T8] mmdrop (____ptrval____) before 4 [ 35.760248][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.764932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.764932][ T8] Call Trace: [ 35.764932][ T8] dump_stack+0x172/0x1f0 [ 35.764932][ T8] finish_task_switch+0x239/0x790 [ 35.764932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.764932][ T8] __schedule+0x7d3/0x1580 [ 35.764932][ T8] ? __sched_text_start+0x8/0x8 [ 35.764932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.764932][ T8] schedule+0xa8/0x260 [ 35.764932][ T8] kthread+0x27a/0x420 [ 35.764932][ T8] ? process_one_work+0x1790/0x1790 [ 35.764932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.764932][ T8] ret_from_fork+0x24/0x30 [ 35.764978][ T8] mmgrab (____ptrval____) to 4 [ 35.769743][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.774932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.774932][ T8] Call Trace: [ 35.774932][ T8] dump_stack+0x172/0x1f0 [ 35.774932][ T8] __schedule+0xd03/0x1580 [ 35.774932][ T8] ? __sched_text_start+0x8/0x8 [ 35.774932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.774932][ T8] schedule+0xa8/0x260 [ 35.774932][ T8] kthread+0x27a/0x420 [ 35.774932][ T8] ? process_one_work+0x1790/0x1790 [ 35.774932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.774932][ T8] ret_from_fork+0x24/0x30 [ 35.774963][ T1] mmdrop (____ptrval____) before 4 [ 35.784972][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.792295][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.794932][ T1] Call Trace: [ 35.794932][ T1] dump_stack+0x172/0x1f0 [ 35.794932][ T1] finish_task_switch+0x239/0x790 [ 35.794932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.794932][ T1] __schedule+0x7d3/0x1580 [ 35.794932][ T1] ? __sched_text_start+0x8/0x8 [ 35.794932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.794932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.794932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.794932][ T1] preempt_schedule+0x4b/0x60 [ 35.794932][ T1] ___preempt_schedule+0x16/0x18 [ 35.794932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.794932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.794932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.794932][ T1] ? kasan_check_read+0x11/0x20 [ 35.794932][ T1] wake_up_process+0x10/0x20 [ 35.794932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.794932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.794932][ T1] ? find_held_lock+0x35/0x130 [ 35.794932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.794932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.794932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.794932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.794932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.794932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.794932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.794932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.794932][ T1] alloc_workqueue+0x669/0xf00 [ 35.794932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.794932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.794932][ T1] ? cpumask_next+0x41/0x50 [ 35.794932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.794932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.794932][ T1] init_mm_internals+0x24/0x3c9 [ 35.794932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.794932][ T1] ? rest_init+0x37b/0x37b [ 35.794932][ T1] kernel_init+0x12/0x1c5 [ 35.794932][ T1] ret_from_fork+0x24/0x30 [ 35.794975][ T1] mmgrab (____ptrval____) to 4 [ 35.799735][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.804932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.804932][ T1] Call Trace: [ 35.804932][ T1] dump_stack+0x172/0x1f0 [ 35.804932][ T1] __schedule+0xd03/0x1580 [ 35.804932][ T1] ? __sched_text_start+0x8/0x8 [ 35.804932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.804932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.804932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.804932][ T1] preempt_schedule+0x4b/0x60 [ 35.804932][ T1] ___preempt_schedule+0x16/0x18 [ 35.804932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.804932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.804932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.804932][ T1] ? kasan_check_read+0x11/0x20 [ 35.804932][ T1] wake_up_process+0x10/0x20 [ 35.804932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.804932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.804932][ T1] ? find_held_lock+0x35/0x130 [ 35.804932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.804932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.804932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.804932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.804932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.804932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.804932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.804932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.804932][ T1] alloc_workqueue+0x669/0xf00 [ 35.804932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.804932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.804932][ T1] ? cpumask_next+0x41/0x50 [ 35.804932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.804932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.804932][ T1] init_mm_internals+0x24/0x3c9 [ 35.804932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.804932][ T1] ? rest_init+0x37b/0x37b [ 35.804932][ T1] kernel_init+0x12/0x1c5 [ 35.804932][ T1] ret_from_fork+0x24/0x30 [ 35.804963][ T7] mmdrop (____ptrval____) before 4 [ 35.810187][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.814932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.814932][ T7] Workqueue: 0x0 (events) [ 35.814932][ T7] Call Trace: [ 35.814932][ T7] dump_stack+0x172/0x1f0 [ 35.814932][ T7] finish_task_switch+0x239/0x790 [ 35.814932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.814932][ T7] __schedule+0x7d3/0x1580 [ 35.814932][ T7] ? __sched_text_start+0x8/0x8 [ 35.814932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.814932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.814932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.814932][ T7] ? kthread_data+0x58/0xc0 [ 35.814932][ T7] schedule+0xa8/0x260 [ 35.814932][ T7] worker_thread+0x248/0xe40 [ 35.814932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.814932][ T7] kthread+0x354/0x420 [ 35.814932][ T7] ? process_one_work+0x1790/0x1790 [ 35.814932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.814932][ T7] ret_from_fork+0x24/0x30 [ 35.814980][ T7] mmgrab (____ptrval____) to 4 [ 35.819867][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.824932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.824932][ T7] Workqueue: 0x0 (events) [ 35.824932][ T7] Call Trace: [ 35.824932][ T7] dump_stack+0x172/0x1f0 [ 35.824932][ T7] __schedule+0xd03/0x1580 [ 35.824932][ T7] ? __sched_text_start+0x8/0x8 [ 35.824932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.824932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.824932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.824932][ T7] ? kthread_data+0x58/0xc0 [ 35.824932][ T7] schedule+0xa8/0x260 [ 35.824932][ T7] worker_thread+0x248/0xe40 [ 35.824932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.824932][ T7] kthread+0x354/0x420 [ 35.824932][ T7] ? process_one_work+0x1790/0x1790 [ 35.824932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.824932][ T7] ret_from_fork+0x24/0x30 [ 35.824968][ T2] mmdrop (____ptrval____) before 4 [ 35.830096][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.834932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.834932][ T2] Call Trace: [ 35.834932][ T2] dump_stack+0x172/0x1f0 [ 35.834932][ T2] finish_task_switch+0x239/0x790 [ 35.834932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.834932][ T2] __schedule+0x7d3/0x1580 [ 35.834932][ T2] ? __sched_text_start+0x8/0x8 [ 35.834932][ T2] schedule+0xa8/0x260 [ 35.834932][ T2] kthreadd+0x5cc/0x740 [ 35.834932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.834932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.834932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.834932][ T2] ret_from_fork+0x24/0x30 [ 35.834983][ T2] mmgrab (____ptrval____) to 4 [ 35.839804][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.844932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.844932][ T2] Call Trace: [ 35.844932][ T2] dump_stack+0x172/0x1f0 [ 35.844932][ T2] __schedule+0xd03/0x1580 [ 35.844932][ T2] ? __sched_text_start+0x8/0x8 [ 35.844932][ T2] schedule+0xa8/0x260 [ 35.844932][ T2] kthreadd+0x5cc/0x740 [ 35.844932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.844932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.844932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.844932][ T2] ret_from_fork+0x24/0x30 [ 35.844965][ T8] mmdrop (____ptrval____) before 4 [ 35.850179][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.854932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.854932][ T8] Call Trace: [ 35.854932][ T8] dump_stack+0x172/0x1f0 [ 35.854932][ T8] finish_task_switch+0x239/0x790 [ 35.854932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.854932][ T8] __schedule+0x7d3/0x1580 [ 35.854932][ T8] ? __sched_text_start+0x8/0x8 [ 35.854932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.854932][ T8] schedule+0xa8/0x260 [ 35.854932][ T8] kthread+0x27a/0x420 [ 35.854932][ T8] ? process_one_work+0x1790/0x1790 [ 35.854932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.854932][ T8] ret_from_fork+0x24/0x30 [ 35.854975][ T8] mmgrab (____ptrval____) to 4 [ 35.859900][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.864932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.864932][ T8] Call Trace: [ 35.864932][ T8] dump_stack+0x172/0x1f0 [ 35.864932][ T8] __schedule+0xd03/0x1580 [ 35.864932][ T8] ? __sched_text_start+0x8/0x8 [ 35.864932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.864932][ T8] schedule+0xa8/0x260 [ 35.864932][ T8] kthread+0x27a/0x420 [ 35.864932][ T8] ? process_one_work+0x1790/0x1790 [ 35.864932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.864932][ T8] ret_from_fork+0x24/0x30 [ 35.864964][ T1] mmdrop (____ptrval____) before 4 [ 35.870308][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.874932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.874932][ T1] Call Trace: [ 35.874932][ T1] dump_stack+0x172/0x1f0 [ 35.874932][ T1] finish_task_switch+0x239/0x790 [ 35.874932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.874932][ T1] __schedule+0x7d3/0x1580 [ 35.874932][ T1] ? __sched_text_start+0x8/0x8 [ 35.874932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.874932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.874932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.874932][ T1] preempt_schedule+0x4b/0x60 [ 35.874932][ T1] ___preempt_schedule+0x16/0x18 [ 35.874932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.874932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.874932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.874932][ T1] ? kasan_check_read+0x11/0x20 [ 35.874932][ T1] wake_up_process+0x10/0x20 [ 35.874932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.874932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.874932][ T1] ? find_held_lock+0x35/0x130 [ 35.874932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.874932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.874932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.874932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.874932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.874932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.874932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.874932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.874932][ T1] alloc_workqueue+0x669/0xf00 [ 35.874932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.874932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.874932][ T1] ? cpumask_next+0x41/0x50 [ 35.874932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.874932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.874932][ T1] init_mm_internals+0x24/0x3c9 [ 35.874932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.874932][ T1] ? rest_init+0x37b/0x37b [ 35.874932][ T1] kernel_init+0x12/0x1c5 [ 35.874932][ T1] ret_from_fork+0x24/0x30 [ 35.874974][ T1] mmgrab (____ptrval____) to 4 [ 35.879793][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.884932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.884932][ T1] Call Trace: [ 35.884932][ T1] dump_stack+0x172/0x1f0 [ 35.884932][ T1] __schedule+0xd03/0x1580 [ 35.884932][ T1] ? __sched_text_start+0x8/0x8 [ 35.884932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.884932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.884932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.884932][ T1] preempt_schedule+0x4b/0x60 [ 35.884932][ T1] ___preempt_schedule+0x16/0x18 [ 35.884932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.884932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.884932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.884932][ T1] ? kasan_check_read+0x11/0x20 [ 35.884932][ T1] wake_up_process+0x10/0x20 [ 35.884932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.884932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.884932][ T1] ? find_held_lock+0x35/0x130 [ 35.884932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.884932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.884932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.884932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.884932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.884932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.884932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.884932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.884932][ T1] alloc_workqueue+0x669/0xf00 [ 35.884932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.884932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.884932][ T1] ? cpumask_next+0x41/0x50 [ 35.884932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.884932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.884932][ T1] init_mm_internals+0x24/0x3c9 [ 35.884932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.884932][ T1] ? rest_init+0x37b/0x37b [ 35.884932][ T1] kernel_init+0x12/0x1c5 [ 35.884932][ T1] ret_from_fork+0x24/0x30 [ 35.884964][ T7] mmdrop (____ptrval____) before 4 [ 35.890889][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.894932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.894932][ T7] Workqueue: 0x0 (events) [ 35.894932][ T7] Call Trace: [ 35.894932][ T7] dump_stack+0x172/0x1f0 [ 35.894932][ T7] finish_task_switch+0x239/0x790 [ 35.894932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.894932][ T7] __schedule+0x7d3/0x1580 [ 35.894932][ T7] ? __sched_text_start+0x8/0x8 [ 35.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.894932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.894932][ T7] ? kthread_data+0x58/0xc0 [ 35.894932][ T7] schedule+0xa8/0x260 [ 35.894932][ T7] worker_thread+0x248/0xe40 [ 35.894932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.894932][ T7] kthread+0x354/0x420 [ 35.894932][ T7] ? process_one_work+0x1790/0x1790 [ 35.894932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.894932][ T7] ret_from_fork+0x24/0x30 [ 35.895004][ T7] mmgrab (____ptrval____) to 4 [ 35.899771][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.904932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.904932][ T7] Workqueue: 0x0 (events) [ 35.904932][ T7] Call Trace: [ 35.904932][ T7] dump_stack+0x172/0x1f0 [ 35.904932][ T7] __schedule+0xd03/0x1580 [ 35.904932][ T7] ? __sched_text_start+0x8/0x8 [ 35.904932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.904932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.904932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.904932][ T7] ? kthread_data+0x58/0xc0 [ 35.904932][ T7] schedule+0xa8/0x260 [ 35.904932][ T7] worker_thread+0x248/0xe40 [ 35.904932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.904932][ T7] kthread+0x354/0x420 [ 35.904932][ T7] ? process_one_work+0x1790/0x1790 [ 35.904932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.904932][ T7] ret_from_fork+0x24/0x30 [ 35.904965][ T2] mmdrop (____ptrval____) before 4 [ 35.910096][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.914932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.914932][ T2] Call Trace: [ 35.914932][ T2] dump_stack+0x172/0x1f0 [ 35.914932][ T2] finish_task_switch+0x239/0x790 [ 35.914932][ T2] ? dump_stack+0x1de/0x1f0 [ 35.914932][ T2] __schedule+0x7d3/0x1580 [ 35.914932][ T2] ? __sched_text_start+0x8/0x8 [ 35.914932][ T2] schedule+0xa8/0x260 [ 35.914932][ T2] kthreadd+0x5cc/0x740 [ 35.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.914932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.914932][ T2] ret_from_fork+0x24/0x30 [ 35.914975][ T2] mmgrab (____ptrval____) to 4 [ 35.919734][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 35.924932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.924932][ T2] Call Trace: [ 35.924932][ T2] dump_stack+0x172/0x1f0 [ 35.924932][ T2] __schedule+0xd03/0x1580 [ 35.924932][ T2] ? __sched_text_start+0x8/0x8 [ 35.924932][ T2] schedule+0xa8/0x260 [ 35.924932][ T2] kthreadd+0x5cc/0x740 [ 35.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.924932][ T2] ? calculate_sigpending+0x87/0xa0 [ 35.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 35.924932][ T2] ret_from_fork+0x24/0x30 [ 35.924972][ T8] mmdrop (____ptrval____) before 4 [ 35.934975][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.942608][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.944932][ T8] Call Trace: [ 35.944932][ T8] dump_stack+0x172/0x1f0 [ 35.944932][ T8] finish_task_switch+0x239/0x790 [ 35.944932][ T8] ? dump_stack+0x1de/0x1f0 [ 35.944932][ T8] __schedule+0x7d3/0x1580 [ 35.944932][ T8] ? __sched_text_start+0x8/0x8 [ 35.944932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.944932][ T8] schedule+0xa8/0x260 [ 35.944932][ T8] kthread+0x27a/0x420 [ 35.944932][ T8] ? process_one_work+0x1790/0x1790 [ 35.944932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.944932][ T8] ret_from_fork+0x24/0x30 [ 35.944981][ T8] mmgrab (____ptrval____) to 4 [ 35.949767][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 35.954932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.954932][ T8] Call Trace: [ 35.954932][ T8] dump_stack+0x172/0x1f0 [ 35.954932][ T8] __schedule+0xd03/0x1580 [ 35.954932][ T8] ? __sched_text_start+0x8/0x8 [ 35.954932][ T8] ? ___preempt_schedule+0x16/0x18 [ 35.954932][ T8] schedule+0xa8/0x260 [ 35.954932][ T8] kthread+0x27a/0x420 [ 35.954932][ T8] ? process_one_work+0x1790/0x1790 [ 35.954932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.954932][ T8] ret_from_fork+0x24/0x30 [ 35.954965][ T1] mmdrop (____ptrval____) before 4 [ 35.960194][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.964932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.964932][ T1] Call Trace: [ 35.964932][ T1] dump_stack+0x172/0x1f0 [ 35.964932][ T1] finish_task_switch+0x239/0x790 [ 35.964932][ T1] ? dump_stack+0x1de/0x1f0 [ 35.964932][ T1] __schedule+0x7d3/0x1580 [ 35.964932][ T1] ? __sched_text_start+0x8/0x8 [ 35.964932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.964932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.964932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.964932][ T1] preempt_schedule+0x4b/0x60 [ 35.964932][ T1] ___preempt_schedule+0x16/0x18 [ 35.964932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.964932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.964932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.964932][ T1] ? kasan_check_read+0x11/0x20 [ 35.964932][ T1] wake_up_process+0x10/0x20 [ 35.964932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.964932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.964932][ T1] ? find_held_lock+0x35/0x130 [ 35.964932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.964932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.964932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.964932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.964932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.964932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.964932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.964932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.964932][ T1] alloc_workqueue+0x669/0xf00 [ 35.964932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.964932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.964932][ T1] ? cpumask_next+0x41/0x50 [ 35.964932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.964932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.964932][ T1] init_mm_internals+0x24/0x3c9 [ 35.964932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.964932][ T1] ? rest_init+0x37b/0x37b [ 35.964932][ T1] kernel_init+0x12/0x1c5 [ 35.964932][ T1] ret_from_fork+0x24/0x30 [ 35.964987][ T1] mmgrab (____ptrval____) to 4 [ 35.969816][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 35.974932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.974932][ T1] Call Trace: [ 35.974932][ T1] dump_stack+0x172/0x1f0 [ 35.974932][ T1] __schedule+0xd03/0x1580 [ 35.974932][ T1] ? __sched_text_start+0x8/0x8 [ 35.974932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 35.974932][ T1] ? preempt_schedule+0x4b/0x60 [ 35.974932][ T1] preempt_schedule_common+0x4f/0xe0 [ 35.974932][ T1] preempt_schedule+0x4b/0x60 [ 35.974932][ T1] ___preempt_schedule+0x16/0x18 [ 35.974932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 35.974932][ T1] try_to_wake_up+0xc8/0x13f0 [ 35.974932][ T1] ? migrate_swap_stop+0x920/0x920 [ 35.974932][ T1] ? kasan_check_read+0x11/0x20 [ 35.974932][ T1] wake_up_process+0x10/0x20 [ 35.974932][ T1] __kthread_create_on_node+0x281/0x460 [ 35.974932][ T1] ? kthread_parkme+0xb0/0xb0 [ 35.974932][ T1] ? find_held_lock+0x35/0x130 [ 35.974932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.974932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 35.974932][ T1] kthread_create_on_node+0xbb/0xf0 [ 35.974932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 35.974932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 35.974932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 35.974932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.974932][ T1] init_rescuer.part.0+0x7d/0x190 [ 35.974932][ T1] alloc_workqueue+0x669/0xf00 [ 35.974932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 35.974932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 35.974932][ T1] ? cpumask_next+0x41/0x50 [ 35.974932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.974932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 35.974932][ T1] init_mm_internals+0x24/0x3c9 [ 35.974932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 35.974932][ T1] ? rest_init+0x37b/0x37b [ 35.974932][ T1] kernel_init+0x12/0x1c5 [ 35.974932][ T1] ret_from_fork+0x24/0x30 [ 35.974960][ T7] mmdrop (____ptrval____) before 4 [ 35.980136][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.984932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.984932][ T7] Workqueue: 0x0 (events) [ 35.984932][ T7] Call Trace: [ 35.984932][ T7] dump_stack+0x172/0x1f0 [ 35.984932][ T7] finish_task_switch+0x239/0x790 [ 35.984932][ T7] ? dump_stack+0x1de/0x1f0 [ 35.984932][ T7] __schedule+0x7d3/0x1580 [ 35.984932][ T7] ? __sched_text_start+0x8/0x8 [ 35.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.984932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.984932][ T7] ? kthread_data+0x58/0xc0 [ 35.984932][ T7] schedule+0xa8/0x260 [ 35.984932][ T7] worker_thread+0x248/0xe40 [ 35.984932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.984932][ T7] kthread+0x354/0x420 [ 35.984932][ T7] ? process_one_work+0x1790/0x1790 [ 35.984932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.984932][ T7] ret_from_fork+0x24/0x30 [ 35.984978][ T7] mmgrab (____ptrval____) to 4 [ 35.989748][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 35.994932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.994932][ T7] Workqueue: 0x0 (events) [ 35.994932][ T7] Call Trace: [ 35.994932][ T7] dump_stack+0x172/0x1f0 [ 35.994932][ T7] __schedule+0xd03/0x1580 [ 35.994932][ T7] ? __sched_text_start+0x8/0x8 [ 35.994932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.994932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 35.994932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.994932][ T7] ? kthread_data+0x58/0xc0 [ 35.994932][ T7] schedule+0xa8/0x260 [ 35.994932][ T7] worker_thread+0x248/0xe40 [ 35.994932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 35.994932][ T7] kthread+0x354/0x420 [ 35.994932][ T7] ? process_one_work+0x1790/0x1790 [ 35.994932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 35.994932][ T7] ret_from_fork+0x24/0x30 [ 35.994964][ T2] mmdrop (____ptrval____) before 4 [ 36.000088][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.004932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.004932][ T2] Call Trace: [ 36.004932][ T2] dump_stack+0x172/0x1f0 [ 36.004932][ T2] finish_task_switch+0x239/0x790 [ 36.004932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.004932][ T2] __schedule+0x7d3/0x1580 [ 36.004932][ T2] ? __sched_text_start+0x8/0x8 [ 36.004932][ T2] schedule+0xa8/0x260 [ 36.004932][ T2] kthreadd+0x5cc/0x740 [ 36.004932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.004932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.004932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.004932][ T2] ret_from_fork+0x24/0x30 [ 36.004977][ T2] mmgrab (____ptrval____) to 4 [ 36.009748][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.014932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.014932][ T2] Call Trace: [ 36.014932][ T2] dump_stack+0x172/0x1f0 [ 36.014932][ T2] __schedule+0xd03/0x1580 [ 36.014932][ T2] ? __sched_text_start+0x8/0x8 [ 36.014932][ T2] schedule+0xa8/0x260 [ 36.014932][ T2] kthreadd+0x5cc/0x740 [ 36.014932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.014932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.014932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.014932][ T2] ret_from_fork+0x24/0x30 [ 36.014962][ T8] mmdrop (____ptrval____) before 4 [ 36.024968][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.032460][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.034932][ T8] Call Trace: [ 36.034932][ T8] dump_stack+0x172/0x1f0 [ 36.034932][ T8] finish_task_switch+0x239/0x790 [ 36.034932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.034932][ T8] __schedule+0x7d3/0x1580 [ 36.034932][ T8] ? __sched_text_start+0x8/0x8 [ 36.034932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.034932][ T8] schedule+0xa8/0x260 [ 36.034932][ T8] kthread+0x27a/0x420 [ 36.034932][ T8] ? process_one_work+0x1790/0x1790 [ 36.034932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.034932][ T8] ret_from_fork+0x24/0x30 [ 36.034978][ T8] mmgrab (____ptrval____) to 4 [ 36.039758][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.044932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.044932][ T8] Call Trace: [ 36.044932][ T8] dump_stack+0x172/0x1f0 [ 36.044932][ T8] __schedule+0xd03/0x1580 [ 36.044932][ T8] ? __sched_text_start+0x8/0x8 [ 36.044932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.044932][ T8] schedule+0xa8/0x260 [ 36.044932][ T8] kthread+0x27a/0x420 [ 36.044932][ T8] ? process_one_work+0x1790/0x1790 [ 36.044932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.044932][ T8] ret_from_fork+0x24/0x30 [ 36.044961][ T1] mmdrop (____ptrval____) before 4 [ 36.054974][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.062087][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.064932][ T1] Call Trace: [ 36.064932][ T1] dump_stack+0x172/0x1f0 [ 36.064932][ T1] finish_task_switch+0x239/0x790 [ 36.064932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.064932][ T1] __schedule+0x7d3/0x1580 [ 36.064932][ T1] ? __sched_text_start+0x8/0x8 [ 36.064932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.064932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.064932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.064932][ T1] preempt_schedule+0x4b/0x60 [ 36.064932][ T1] ___preempt_schedule+0x16/0x18 [ 36.064932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.064932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.064932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.064932][ T1] ? kasan_check_read+0x11/0x20 [ 36.064932][ T1] wake_up_process+0x10/0x20 [ 36.064932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.064932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.064932][ T1] ? find_held_lock+0x35/0x130 [ 36.064932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.064932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.064932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.064932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.064932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.064932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.064932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.064932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.064932][ T1] alloc_workqueue+0x669/0xf00 [ 36.064932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.064932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.064932][ T1] ? cpumask_next+0x41/0x50 [ 36.064932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.064932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.064932][ T1] init_mm_internals+0x24/0x3c9 [ 36.064932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.064932][ T1] ? rest_init+0x37b/0x37b [ 36.064932][ T1] kernel_init+0x12/0x1c5 [ 36.064932][ T1] ret_from_fork+0x24/0x30 [ 36.064976][ T1] mmgrab (____ptrval____) to 4 [ 36.069821][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.074932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.074932][ T1] Call Trace: [ 36.074932][ T1] dump_stack+0x172/0x1f0 [ 36.074932][ T1] __schedule+0xd03/0x1580 [ 36.074932][ T1] ? __sched_text_start+0x8/0x8 [ 36.074932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.074932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.074932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.074932][ T1] preempt_schedule+0x4b/0x60 [ 36.074932][ T1] ___preempt_schedule+0x16/0x18 [ 36.074932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.074932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.074932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.074932][ T1] ? kasan_check_read+0x11/0x20 [ 36.074932][ T1] wake_up_process+0x10/0x20 [ 36.074932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.074932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.074932][ T1] ? find_held_lock+0x35/0x130 [ 36.074932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.074932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.074932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.074932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.074932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.074932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.074932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.074932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.074932][ T1] alloc_workqueue+0x669/0xf00 [ 36.074932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.074932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.074932][ T1] ? cpumask_next+0x41/0x50 [ 36.074932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.074932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.074932][ T1] init_mm_internals+0x24/0x3c9 [ 36.074932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.074932][ T1] ? rest_init+0x37b/0x37b [ 36.074932][ T1] kernel_init+0x12/0x1c5 [ 36.074932][ T1] ret_from_fork+0x24/0x30 [ 36.074963][ T7] mmdrop (____ptrval____) before 4 [ 36.084973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.092454][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.094932][ T7] Workqueue: 0x0 (events) [ 36.094932][ T7] Call Trace: [ 36.094932][ T7] dump_stack+0x172/0x1f0 [ 36.094932][ T7] finish_task_switch+0x239/0x790 [ 36.094932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.094932][ T7] __schedule+0x7d3/0x1580 [ 36.094932][ T7] ? __sched_text_start+0x8/0x8 [ 36.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.094932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.094932][ T7] ? kthread_data+0x58/0xc0 [ 36.094932][ T7] schedule+0xa8/0x260 [ 36.094932][ T7] worker_thread+0x248/0xe40 [ 36.094932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.094932][ T7] kthread+0x354/0x420 [ 36.094932][ T7] ? process_one_work+0x1790/0x1790 [ 36.094932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.094932][ T7] ret_from_fork+0x24/0x30 [ 36.094977][ T7] mmgrab (____ptrval____) to 4 [ 36.099869][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.104932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.104932][ T7] Workqueue: 0x0 (events) [ 36.104932][ T7] Call Trace: [ 36.104932][ T7] dump_stack+0x172/0x1f0 [ 36.104932][ T7] __schedule+0xd03/0x1580 [ 36.104932][ T7] ? __sched_text_start+0x8/0x8 [ 36.104932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.104932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.104932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.104932][ T7] ? kthread_data+0x58/0xc0 [ 36.104932][ T7] schedule+0xa8/0x260 [ 36.104932][ T7] worker_thread+0x248/0xe40 [ 36.104932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.104932][ T7] kthread+0x354/0x420 [ 36.104932][ T7] ? process_one_work+0x1790/0x1790 [ 36.104932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.104932][ T7] ret_from_fork+0x24/0x30 [ 36.104961][ T2] mmdrop (____ptrval____) before 4 [ 36.114973][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.122029][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.124932][ T2] Call Trace: [ 36.124932][ T2] dump_stack+0x172/0x1f0 [ 36.124932][ T2] finish_task_switch+0x239/0x790 [ 36.124932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.124932][ T2] __schedule+0x7d3/0x1580 [ 36.124932][ T2] ? __sched_text_start+0x8/0x8 [ 36.124932][ T2] schedule+0xa8/0x260 [ 36.124932][ T2] kthreadd+0x5cc/0x740 [ 36.124932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.124932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.124932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.124932][ T2] ret_from_fork+0x24/0x30 [ 36.124977][ T2] mmgrab (____ptrval____) to 4 [ 36.129745][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.134932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.134932][ T2] Call Trace: [ 36.134932][ T2] dump_stack+0x172/0x1f0 [ 36.134932][ T2] __schedule+0xd03/0x1580 [ 36.134932][ T2] ? __sched_text_start+0x8/0x8 [ 36.134932][ T2] schedule+0xa8/0x260 [ 36.134932][ T2] kthreadd+0x5cc/0x740 [ 36.134932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.134932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.134932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.134932][ T2] ret_from_fork+0x24/0x30 [ 36.134963][ T8] mmdrop (____ptrval____) before 4 [ 36.145009][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.152514][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.154932][ T8] Call Trace: [ 36.154932][ T8] dump_stack+0x172/0x1f0 [ 36.154932][ T8] finish_task_switch+0x239/0x790 [ 36.154932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.154932][ T8] __schedule+0x7d3/0x1580 [ 36.154932][ T8] ? __sched_text_start+0x8/0x8 [ 36.154932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.154932][ T8] schedule+0xa8/0x260 [ 36.154932][ T8] kthread+0x27a/0x420 [ 36.154932][ T8] ? process_one_work+0x1790/0x1790 [ 36.154932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.154932][ T8] ret_from_fork+0x24/0x30 [ 36.154979][ T8] mmgrab (____ptrval____) to 4 [ 36.159742][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.164932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.164932][ T8] Call Trace: [ 36.164932][ T8] dump_stack+0x172/0x1f0 [ 36.164932][ T8] __schedule+0xd03/0x1580 [ 36.164932][ T8] ? __sched_text_start+0x8/0x8 [ 36.164932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.164932][ T8] schedule+0xa8/0x260 [ 36.164932][ T8] kthread+0x27a/0x420 [ 36.164932][ T8] ? process_one_work+0x1790/0x1790 [ 36.164932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.164932][ T8] ret_from_fork+0x24/0x30 [ 36.165193][ T1] mmdrop (____ptrval____) before 4 [ 36.174976][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.184932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.184932][ T1] Call Trace: [ 36.184932][ T1] dump_stack+0x172/0x1f0 [ 36.184932][ T1] finish_task_switch+0x239/0x790 [ 36.184932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.184932][ T1] __schedule+0x7d3/0x1580 [ 36.184932][ T1] ? __sched_text_start+0x8/0x8 [ 36.184932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.184932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.184932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.184932][ T1] preempt_schedule+0x4b/0x60 [ 36.184932][ T1] ___preempt_schedule+0x16/0x18 [ 36.184932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.184932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.184932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.184932][ T1] ? kasan_check_read+0x11/0x20 [ 36.184932][ T1] wake_up_process+0x10/0x20 [ 36.184932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.184932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.184932][ T1] ? find_held_lock+0x35/0x130 [ 36.184932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.184932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.184932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.184932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.184932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.184932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.184932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.184932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.184932][ T1] alloc_workqueue+0x669/0xf00 [ 36.184932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.184932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.184932][ T1] ? cpumask_next+0x41/0x50 [ 36.184932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.184932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.184932][ T1] init_mm_internals+0x24/0x3c9 [ 36.184932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.184932][ T1] ? rest_init+0x37b/0x37b [ 36.184932][ T1] kernel_init+0x12/0x1c5 [ 36.184932][ T1] ret_from_fork+0x24/0x30 [ 36.184980][ T1] mmgrab (____ptrval____) to 4 [ 36.189833][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.194932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.194932][ T1] Call Trace: [ 36.194932][ T1] dump_stack+0x172/0x1f0 [ 36.194932][ T1] __schedule+0xd03/0x1580 [ 36.194932][ T1] ? __sched_text_start+0x8/0x8 [ 36.194932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.194932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.194932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.194932][ T1] preempt_schedule+0x4b/0x60 [ 36.194932][ T1] ___preempt_schedule+0x16/0x18 [ 36.194932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.194932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.194932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.194932][ T1] ? kasan_check_read+0x11/0x20 [ 36.194932][ T1] wake_up_process+0x10/0x20 [ 36.194932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.194932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.194932][ T1] ? find_held_lock+0x35/0x130 [ 36.194932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.194932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.194932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.194932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.194932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.194932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.194932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.194932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.194932][ T1] alloc_workqueue+0x669/0xf00 [ 36.194932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.194932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.194932][ T1] ? cpumask_next+0x41/0x50 [ 36.194932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.194932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.194932][ T1] init_mm_internals+0x24/0x3c9 [ 36.194932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.194932][ T1] ? rest_init+0x37b/0x37b [ 36.194932][ T1] kernel_init+0x12/0x1c5 [ 36.194932][ T1] ret_from_fork+0x24/0x30 [ 36.194965][ T7] mmdrop (____ptrval____) before 4 [ 36.204968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.212249][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.214932][ T7] Workqueue: 0x0 (events) [ 36.214932][ T7] Call Trace: [ 36.214932][ T7] dump_stack+0x172/0x1f0 [ 36.214932][ T7] finish_task_switch+0x239/0x790 [ 36.214932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.214932][ T7] __schedule+0x7d3/0x1580 [ 36.214932][ T7] ? __sched_text_start+0x8/0x8 [ 36.214932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.214932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.214932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.214932][ T7] ? kthread_data+0x58/0xc0 [ 36.214932][ T7] schedule+0xa8/0x260 [ 36.214932][ T7] worker_thread+0x248/0xe40 [ 36.214932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.214932][ T7] kthread+0x354/0x420 [ 36.214932][ T7] ? process_one_work+0x1790/0x1790 [ 36.214932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.214932][ T7] ret_from_fork+0x24/0x30 [ 36.215008][ T7] mmgrab (____ptrval____) to 4 [ 36.219782][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.224932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.224932][ T7] Workqueue: 0x0 (events) [ 36.224932][ T7] Call Trace: [ 36.224932][ T7] dump_stack+0x172/0x1f0 [ 36.224932][ T7] __schedule+0xd03/0x1580 [ 36.224932][ T7] ? __sched_text_start+0x8/0x8 [ 36.224932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.224932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.224932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.224932][ T7] ? kthread_data+0x58/0xc0 [ 36.224932][ T7] schedule+0xa8/0x260 [ 36.224932][ T7] worker_thread+0x248/0xe40 [ 36.224932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.224932][ T7] kthread+0x354/0x420 [ 36.224932][ T7] ? process_one_work+0x1790/0x1790 [ 36.224932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.224932][ T7] ret_from_fork+0x24/0x30 [ 36.224963][ T2] mmdrop (____ptrval____) before 4 [ 36.234979][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.242050][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.244932][ T2] Call Trace: [ 36.244932][ T2] dump_stack+0x172/0x1f0 [ 36.244932][ T2] finish_task_switch+0x239/0x790 [ 36.244932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.244932][ T2] __schedule+0x7d3/0x1580 [ 36.244932][ T2] ? __sched_text_start+0x8/0x8 [ 36.244932][ T2] schedule+0xa8/0x260 [ 36.244932][ T2] kthreadd+0x5cc/0x740 [ 36.244932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.244932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.244932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.244932][ T2] ret_from_fork+0x24/0x30 [ 36.244993][ T2] mmgrab (____ptrval____) to 4 [ 36.249810][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.254932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.254932][ T2] Call Trace: [ 36.254932][ T2] dump_stack+0x172/0x1f0 [ 36.254932][ T2] __schedule+0xd03/0x1580 [ 36.254932][ T2] ? __sched_text_start+0x8/0x8 [ 36.254932][ T2] schedule+0xa8/0x260 [ 36.254932][ T2] kthreadd+0x5cc/0x740 [ 36.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.254932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.254932][ T2] ret_from_fork+0x24/0x30 [ 36.254971][ T8] mmdrop (____ptrval____) before 4 [ 36.264972][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.272541][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.274932][ T8] Call Trace: [ 36.274932][ T8] dump_stack+0x172/0x1f0 [ 36.274932][ T8] finish_task_switch+0x239/0x790 [ 36.274932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.274932][ T8] __schedule+0x7d3/0x1580 [ 36.274932][ T8] ? __sched_text_start+0x8/0x8 [ 36.274932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.274932][ T8] schedule+0xa8/0x260 [ 36.274932][ T8] kthread+0x27a/0x420 [ 36.274932][ T8] ? process_one_work+0x1790/0x1790 [ 36.274932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.274932][ T8] ret_from_fork+0x24/0x30 [ 36.274979][ T8] mmgrab (____ptrval____) to 4 [ 36.279759][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.284932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.284932][ T8] Call Trace: [ 36.284932][ T8] dump_stack+0x172/0x1f0 [ 36.284932][ T8] __schedule+0xd03/0x1580 [ 36.284932][ T8] ? __sched_text_start+0x8/0x8 [ 36.284932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.284932][ T8] schedule+0xa8/0x260 [ 36.284932][ T8] kthread+0x27a/0x420 [ 36.284932][ T8] ? process_one_work+0x1790/0x1790 [ 36.284932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.284932][ T8] ret_from_fork+0x24/0x30 [ 36.284967][ T1] mmdrop (____ptrval____) before 4 [ 36.290085][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.294932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.294932][ T1] Call Trace: [ 36.294932][ T1] dump_stack+0x172/0x1f0 [ 36.294932][ T1] finish_task_switch+0x239/0x790 [ 36.294932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.294932][ T1] __schedule+0x7d3/0x1580 [ 36.294932][ T1] ? __sched_text_start+0x8/0x8 [ 36.294932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.294932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.294932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.294932][ T1] preempt_schedule+0x4b/0x60 [ 36.294932][ T1] ___preempt_schedule+0x16/0x18 [ 36.294932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.294932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.294932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.294932][ T1] ? kasan_check_read+0x11/0x20 [ 36.294932][ T1] wake_up_process+0x10/0x20 [ 36.294932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.294932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.294932][ T1] ? find_held_lock+0x35/0x130 [ 36.294932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.294932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.294932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.294932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.294932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.294932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.294932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.294932][ T1] alloc_workqueue+0x669/0xf00 [ 36.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.294932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.294932][ T1] ? cpumask_next+0x41/0x50 [ 36.294932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.294932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.294932][ T1] init_mm_internals+0x24/0x3c9 [ 36.294932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.294932][ T1] ? rest_init+0x37b/0x37b [ 36.294932][ T1] kernel_init+0x12/0x1c5 [ 36.294932][ T1] ret_from_fork+0x24/0x30 [ 36.294976][ T1] mmgrab (____ptrval____) to 4 [ 36.299807][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.304932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.304932][ T1] Call Trace: [ 36.304932][ T1] dump_stack+0x172/0x1f0 [ 36.304932][ T1] __schedule+0xd03/0x1580 [ 36.304932][ T1] ? __sched_text_start+0x8/0x8 [ 36.304932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.304932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.304932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.304932][ T1] preempt_schedule+0x4b/0x60 [ 36.304932][ T1] ___preempt_schedule+0x16/0x18 [ 36.304932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.304932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.304932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.304932][ T1] ? kasan_check_read+0x11/0x20 [ 36.304932][ T1] wake_up_process+0x10/0x20 [ 36.304932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.304932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.304932][ T1] ? find_held_lock+0x35/0x130 [ 36.304932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.304932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.304932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.304932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.304932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.304932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.304932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.304932][ T1] alloc_workqueue+0x669/0xf00 [ 36.304932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.304932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.304932][ T1] ? cpumask_next+0x41/0x50 [ 36.304932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.304932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.304932][ T1] init_mm_internals+0x24/0x3c9 [ 36.304932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.304932][ T1] ? rest_init+0x37b/0x37b [ 36.304932][ T1] kernel_init+0x12/0x1c5 [ 36.304932][ T1] ret_from_fork+0x24/0x30 [ 36.304977][ T7] mmdrop (____ptrval____) before 4 [ 36.314974][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.322371][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.324932][ T7] Workqueue: 0x0 (events) [ 36.324932][ T7] Call Trace: [ 36.324932][ T7] dump_stack+0x172/0x1f0 [ 36.324932][ T7] finish_task_switch+0x239/0x790 [ 36.324932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.324932][ T7] __schedule+0x7d3/0x1580 [ 36.324932][ T7] ? __sched_text_start+0x8/0x8 [ 36.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.324932][ T7] ? kthread_data+0x58/0xc0 [ 36.324932][ T7] schedule+0xa8/0x260 [ 36.324932][ T7] worker_thread+0x248/0xe40 [ 36.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.324932][ T7] kthread+0x354/0x420 [ 36.324932][ T7] ? process_one_work+0x1790/0x1790 [ 36.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.324932][ T7] ret_from_fork+0x24/0x30 [ 36.325008][ T7] mmgrab (____ptrval____) to 4 [ 36.329777][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.334932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.334932][ T7] Workqueue: 0x0 (events) [ 36.334932][ T7] Call Trace: [ 36.334932][ T7] dump_stack+0x172/0x1f0 [ 36.334932][ T7] __schedule+0xd03/0x1580 [ 36.334932][ T7] ? __sched_text_start+0x8/0x8 [ 36.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.334932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.334932][ T7] ? kthread_data+0x58/0xc0 [ 36.334932][ T7] schedule+0xa8/0x260 [ 36.334932][ T7] worker_thread+0x248/0xe40 [ 36.334932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.334932][ T7] kthread+0x354/0x420 [ 36.334932][ T7] ? process_one_work+0x1790/0x1790 [ 36.334932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.334932][ T7] ret_from_fork+0x24/0x30 [ 36.334966][ T2] mmdrop (____ptrval____) before 4 [ 36.340085][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.344932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.344932][ T2] Call Trace: [ 36.344932][ T2] dump_stack+0x172/0x1f0 [ 36.344932][ T2] finish_task_switch+0x239/0x790 [ 36.344932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.344932][ T2] __schedule+0x7d3/0x1580 [ 36.344932][ T2] ? __sched_text_start+0x8/0x8 [ 36.344932][ T2] schedule+0xa8/0x260 [ 36.344932][ T2] kthreadd+0x5cc/0x740 [ 36.344932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.344932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.344932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.344932][ T2] ret_from_fork+0x24/0x30 [ 36.344975][ T2] mmgrab (____ptrval____) to 4 [ 36.349742][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.354932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.354932][ T2] Call Trace: [ 36.354932][ T2] dump_stack+0x172/0x1f0 [ 36.354932][ T2] __schedule+0xd03/0x1580 [ 36.354932][ T2] ? __sched_text_start+0x8/0x8 [ 36.354932][ T2] schedule+0xa8/0x260 [ 36.354932][ T2] kthreadd+0x5cc/0x740 [ 36.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.354932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.354932][ T2] ret_from_fork+0x24/0x30 [ 36.354963][ T8] mmdrop (____ptrval____) before 4 [ 36.364973][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.372470][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.374932][ T8] Call Trace: [ 36.374932][ T8] dump_stack+0x172/0x1f0 [ 36.374932][ T8] finish_task_switch+0x239/0x790 [ 36.374932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.374932][ T8] __schedule+0x7d3/0x1580 [ 36.374932][ T8] ? __sched_text_start+0x8/0x8 [ 36.374932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.374932][ T8] schedule+0xa8/0x260 [ 36.374932][ T8] kthread+0x27a/0x420 [ 36.374932][ T8] ? process_one_work+0x1790/0x1790 [ 36.374932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.374932][ T8] ret_from_fork+0x24/0x30 [ 36.374980][ T8] mmgrab (____ptrval____) to 4 [ 36.380277][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.384932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.384932][ T8] Call Trace: [ 36.384932][ T8] dump_stack+0x172/0x1f0 [ 36.384932][ T8] __schedule+0xd03/0x1580 [ 36.384932][ T8] ? __sched_text_start+0x8/0x8 [ 36.384932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.384932][ T8] schedule+0xa8/0x260 [ 36.384932][ T8] kthread+0x27a/0x420 [ 36.384932][ T8] ? process_one_work+0x1790/0x1790 [ 36.384932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.384932][ T8] ret_from_fork+0x24/0x30 [ 36.384971][ T1] mmdrop (____ptrval____) before 4 [ 36.394966][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.402134][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.404932][ T1] Call Trace: [ 36.404932][ T1] dump_stack+0x172/0x1f0 [ 36.404932][ T1] finish_task_switch+0x239/0x790 [ 36.404932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.404932][ T1] __schedule+0x7d3/0x1580 [ 36.404932][ T1] ? __sched_text_start+0x8/0x8 [ 36.404932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.404932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.404932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.404932][ T1] preempt_schedule+0x4b/0x60 [ 36.404932][ T1] ___preempt_schedule+0x16/0x18 [ 36.404932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.404932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.404932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.404932][ T1] ? kasan_check_read+0x11/0x20 [ 36.404932][ T1] wake_up_process+0x10/0x20 [ 36.404932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.404932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.404932][ T1] ? find_held_lock+0x35/0x130 [ 36.404932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.404932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.404932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.404932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.404932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.404932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.404932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.404932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.404932][ T1] alloc_workqueue+0x669/0xf00 [ 36.404932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.404932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.404932][ T1] ? cpumask_next+0x41/0x50 [ 36.404932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.404932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.404932][ T1] init_mm_internals+0x24/0x3c9 [ 36.404932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.404932][ T1] ? rest_init+0x37b/0x37b [ 36.404932][ T1] kernel_init+0x12/0x1c5 [ 36.404932][ T1] ret_from_fork+0x24/0x30 [ 36.404976][ T1] mmgrab (____ptrval____) to 4 [ 36.409748][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.414932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.414932][ T1] Call Trace: [ 36.414932][ T1] dump_stack+0x172/0x1f0 [ 36.414932][ T1] __schedule+0xd03/0x1580 [ 36.414932][ T1] ? __sched_text_start+0x8/0x8 [ 36.414932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.414932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.414932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.414932][ T1] preempt_schedule+0x4b/0x60 [ 36.414932][ T1] ___preempt_schedule+0x16/0x18 [ 36.414932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.414932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.414932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.414932][ T1] ? kasan_check_read+0x11/0x20 [ 36.414932][ T1] wake_up_process+0x10/0x20 [ 36.414932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.414932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.414932][ T1] ? find_held_lock+0x35/0x130 [ 36.414932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.414932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.414932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.414932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.414932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.414932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.414932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.414932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.414932][ T1] alloc_workqueue+0x669/0xf00 [ 36.414932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.414932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.414932][ T1] ? cpumask_next+0x41/0x50 [ 36.414932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.414932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.414932][ T1] init_mm_internals+0x24/0x3c9 [ 36.414932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.414932][ T1] ? rest_init+0x37b/0x37b [ 36.414932][ T1] kernel_init+0x12/0x1c5 [ 36.414932][ T1] ret_from_fork+0x24/0x30 [ 36.414973][ T2] mmdrop (____ptrval____) before 4 [ 36.424978][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.432164][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.434932][ T2] Call Trace: [ 36.434932][ T2] dump_stack+0x172/0x1f0 [ 36.434932][ T2] finish_task_switch+0x239/0x790 [ 36.434932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.434932][ T2] __schedule+0x7d3/0x1580 [ 36.434932][ T2] ? __sched_text_start+0x8/0x8 [ 36.434932][ T2] schedule+0xa8/0x260 [ 36.434932][ T2] kthreadd+0x5cc/0x740 [ 36.434932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.434932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.434932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.434932][ T2] ret_from_fork+0x24/0x30 [ 36.434974][ T2] mmgrab (____ptrval____) to 4 [ 36.444932][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.444932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.444932][ T2] Call Trace: [ 36.444932][ T2] dump_stack+0x172/0x1f0 [ 36.444932][ T2] __schedule+0xd03/0x1580 [ 36.444932][ T2] ? __sched_text_start+0x8/0x8 [ 36.444932][ T2] schedule+0xa8/0x260 [ 36.444932][ T2] kthreadd+0x5cc/0x740 [ 36.444932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.444932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.444932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.444932][ T2] ret_from_fork+0x24/0x30 [ 36.444963][ T7] mmdrop (____ptrval____) before 4 [ 36.450746][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.454932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.454932][ T7] Workqueue: 0x0 (events) [ 36.454932][ T7] Call Trace: [ 36.454932][ T7] dump_stack+0x172/0x1f0 [ 36.454932][ T7] finish_task_switch+0x239/0x790 [ 36.454932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.454932][ T7] __schedule+0x7d3/0x1580 [ 36.454932][ T7] ? __sched_text_start+0x8/0x8 [ 36.454932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.454932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.454932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.454932][ T7] ? kthread_data+0x58/0xc0 [ 36.454932][ T7] schedule+0xa8/0x260 [ 36.454932][ T7] worker_thread+0x248/0xe40 [ 36.454932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.454932][ T7] kthread+0x354/0x420 [ 36.454932][ T7] ? process_one_work+0x1790/0x1790 [ 36.454932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.454932][ T7] ret_from_fork+0x24/0x30 [ 36.454981][ T7] mmgrab (____ptrval____) to 4 [ 36.460029][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.464932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.464932][ T7] Workqueue: 0x0 (events) [ 36.464932][ T7] Call Trace: [ 36.464932][ T7] dump_stack+0x172/0x1f0 [ 36.464932][ T7] __schedule+0xd03/0x1580 [ 36.464932][ T7] ? __sched_text_start+0x8/0x8 [ 36.464932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.464932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.464932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.464932][ T7] ? kthread_data+0x58/0xc0 [ 36.464932][ T7] schedule+0xa8/0x260 [ 36.464932][ T7] worker_thread+0x248/0xe40 [ 36.464932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.464932][ T7] kthread+0x354/0x420 [ 36.464932][ T7] ? process_one_work+0x1790/0x1790 [ 36.464932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.464932][ T7] ret_from_fork+0x24/0x30 [ 36.464963][ T8] mmdrop (____ptrval____) before 4 [ 36.470076][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.474932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.474932][ T8] Call Trace: [ 36.474932][ T8] dump_stack+0x172/0x1f0 [ 36.474932][ T8] finish_task_switch+0x239/0x790 [ 36.474932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.474932][ T8] __schedule+0x7d3/0x1580 [ 36.474932][ T8] ? __sched_text_start+0x8/0x8 [ 36.474932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.474932][ T8] schedule+0xa8/0x260 [ 36.474932][ T8] kthread+0x27a/0x420 [ 36.474932][ T8] ? process_one_work+0x1790/0x1790 [ 36.474932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.474932][ T8] ret_from_fork+0x24/0x30 [ 36.474978][ T8] mmgrab (____ptrval____) to 4 [ 36.479782][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.484932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.484932][ T8] Call Trace: [ 36.484932][ T8] dump_stack+0x172/0x1f0 [ 36.484932][ T8] __schedule+0xd03/0x1580 [ 36.484932][ T8] ? __sched_text_start+0x8/0x8 [ 36.484932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.484932][ T8] schedule+0xa8/0x260 [ 36.484932][ T8] kthread+0x27a/0x420 [ 36.484932][ T8] ? process_one_work+0x1790/0x1790 [ 36.484932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.484932][ T8] ret_from_fork+0x24/0x30 [ 36.484968][ T1] mmdrop (____ptrval____) before 4 [ 36.490078][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.494932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.494932][ T1] Call Trace: [ 36.494932][ T1] dump_stack+0x172/0x1f0 [ 36.494932][ T1] finish_task_switch+0x239/0x790 [ 36.494932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.494932][ T1] __schedule+0x7d3/0x1580 [ 36.494932][ T1] ? __sched_text_start+0x8/0x8 [ 36.494932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.494932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.494932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.494932][ T1] preempt_schedule+0x4b/0x60 [ 36.494932][ T1] ___preempt_schedule+0x16/0x18 [ 36.494932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.494932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.494932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.494932][ T1] ? kasan_check_read+0x11/0x20 [ 36.494932][ T1] wake_up_process+0x10/0x20 [ 36.494932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.494932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.494932][ T1] ? find_held_lock+0x35/0x130 [ 36.494932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.494932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.494932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.494932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.494932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.494932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.494932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.494932][ T1] alloc_workqueue+0x669/0xf00 [ 36.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.494932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.494932][ T1] ? cpumask_next+0x41/0x50 [ 36.494932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.494932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.494932][ T1] init_mm_internals+0x24/0x3c9 [ 36.494932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.494932][ T1] ? rest_init+0x37b/0x37b [ 36.494932][ T1] kernel_init+0x12/0x1c5 [ 36.494932][ T1] ret_from_fork+0x24/0x30 [ 36.494973][ T1] mmgrab (____ptrval____) to 4 [ 36.499740][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.504932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.504932][ T1] Call Trace: [ 36.504932][ T1] dump_stack+0x172/0x1f0 [ 36.504932][ T1] __schedule+0xd03/0x1580 [ 36.504932][ T1] ? __sched_text_start+0x8/0x8 [ 36.504932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.504932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.504932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.504932][ T1] preempt_schedule+0x4b/0x60 [ 36.504932][ T1] ___preempt_schedule+0x16/0x18 [ 36.504932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.504932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.504932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.504932][ T1] ? kasan_check_read+0x11/0x20 [ 36.504932][ T1] wake_up_process+0x10/0x20 [ 36.504932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.504932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.504932][ T1] ? find_held_lock+0x35/0x130 [ 36.504932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.504932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.504932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.504932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.504932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.504932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.504932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.504932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.504932][ T1] alloc_workqueue+0x669/0xf00 [ 36.504932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.504932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.504932][ T1] ? cpumask_next+0x41/0x50 [ 36.504932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.504932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.504932][ T1] init_mm_internals+0x24/0x3c9 [ 36.504932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.504932][ T1] ? rest_init+0x37b/0x37b [ 36.504932][ T1] kernel_init+0x12/0x1c5 [ 36.504932][ T1] ret_from_fork+0x24/0x30 [ 36.504965][ T7] mmdrop (____ptrval____) before 4 [ 36.514975][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.522651][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.524932][ T7] Workqueue: 0x0 (events) [ 36.524932][ T7] Call Trace: [ 36.524932][ T7] dump_stack+0x172/0x1f0 [ 36.524932][ T7] finish_task_switch+0x239/0x790 [ 36.524932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.524932][ T7] __schedule+0x7d3/0x1580 [ 36.524932][ T7] ? __sched_text_start+0x8/0x8 [ 36.524932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.524932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.524932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.524932][ T7] ? kthread_data+0x58/0xc0 [ 36.524932][ T7] schedule+0xa8/0x260 [ 36.524932][ T7] worker_thread+0x248/0xe40 [ 36.524932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.524932][ T7] kthread+0x354/0x420 [ 36.524932][ T7] ? process_one_work+0x1790/0x1790 [ 36.524932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.524932][ T7] ret_from_fork+0x24/0x30 [ 36.525216][ T7] mmgrab (____ptrval____) to 4 [ 36.530147][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.534932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.534932][ T7] Workqueue: 0x0 (events) [ 36.534932][ T7] Call Trace: [ 36.534932][ T7] dump_stack+0x172/0x1f0 [ 36.534932][ T7] __schedule+0xd03/0x1580 [ 36.534932][ T7] ? __sched_text_start+0x8/0x8 [ 36.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.534932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.534932][ T7] ? kthread_data+0x58/0xc0 [ 36.534932][ T7] schedule+0xa8/0x260 [ 36.534932][ T7] worker_thread+0x248/0xe40 [ 36.534932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.534932][ T7] kthread+0x354/0x420 [ 36.534932][ T7] ? process_one_work+0x1790/0x1790 [ 36.534932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.534932][ T7] ret_from_fork+0x24/0x30 [ 36.534965][ T2] mmdrop (____ptrval____) before 4 [ 36.544979][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.552466][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.554932][ T2] Call Trace: [ 36.554932][ T2] dump_stack+0x172/0x1f0 [ 36.554932][ T2] finish_task_switch+0x239/0x790 [ 36.554932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.554932][ T2] __schedule+0x7d3/0x1580 [ 36.554932][ T2] ? __sched_text_start+0x8/0x8 [ 36.554932][ T2] schedule+0xa8/0x260 [ 36.554932][ T2] kthreadd+0x5cc/0x740 [ 36.554932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.554932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.554932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.554932][ T2] ret_from_fork+0x24/0x30 [ 36.555003][ T2] mmgrab (____ptrval____) to 4 [ 36.560486][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.564932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.564932][ T2] Call Trace: [ 36.564932][ T2] dump_stack+0x172/0x1f0 [ 36.564932][ T2] __schedule+0xd03/0x1580 [ 36.564932][ T2] ? __sched_text_start+0x8/0x8 [ 36.564932][ T2] schedule+0xa8/0x260 [ 36.564932][ T2] kthreadd+0x5cc/0x740 [ 36.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.564932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.564932][ T2] ret_from_fork+0x24/0x30 [ 36.564965][ T8] mmdrop (____ptrval____) before 4 [ 36.570384][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.574932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.574932][ T8] Call Trace: [ 36.574932][ T8] dump_stack+0x172/0x1f0 [ 36.574932][ T8] finish_task_switch+0x239/0x790 [ 36.574932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.574932][ T8] __schedule+0x7d3/0x1580 [ 36.574932][ T8] ? __sched_text_start+0x8/0x8 [ 36.574932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.574932][ T8] schedule+0xa8/0x260 [ 36.574932][ T8] kthread+0x27a/0x420 [ 36.574932][ T8] ? process_one_work+0x1790/0x1790 [ 36.574932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.574932][ T8] ret_from_fork+0x24/0x30 [ 36.574983][ T8] mmgrab (____ptrval____) to 4 [ 36.579766][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.584932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.584932][ T8] Call Trace: [ 36.584932][ T8] dump_stack+0x172/0x1f0 [ 36.584932][ T8] __schedule+0xd03/0x1580 [ 36.584932][ T8] ? __sched_text_start+0x8/0x8 [ 36.584932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.584932][ T8] schedule+0xa8/0x260 [ 36.584932][ T8] kthread+0x27a/0x420 [ 36.584932][ T8] ? process_one_work+0x1790/0x1790 [ 36.584932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.584932][ T8] ret_from_fork+0x24/0x30 [ 36.584962][ T1] mmdrop (____ptrval____) before 4 [ 36.594967][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.602273][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.604932][ T1] Call Trace: [ 36.604932][ T1] dump_stack+0x172/0x1f0 [ 36.604932][ T1] finish_task_switch+0x239/0x790 [ 36.604932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.604932][ T1] __schedule+0x7d3/0x1580 [ 36.604932][ T1] ? __sched_text_start+0x8/0x8 [ 36.604932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.604932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.604932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.604932][ T1] preempt_schedule+0x4b/0x60 [ 36.604932][ T1] ___preempt_schedule+0x16/0x18 [ 36.604932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.604932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.604932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.604932][ T1] ? kasan_check_read+0x11/0x20 [ 36.604932][ T1] wake_up_process+0x10/0x20 [ 36.604932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.604932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.604932][ T1] ? find_held_lock+0x35/0x130 [ 36.604932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.604932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.604932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.604932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.604932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.604932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.604932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.604932][ T1] alloc_workqueue+0x669/0xf00 [ 36.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.604932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.604932][ T1] ? cpumask_next+0x41/0x50 [ 36.604932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.604932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.604932][ T1] init_mm_internals+0x24/0x3c9 [ 36.604932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.604932][ T1] ? rest_init+0x37b/0x37b [ 36.604932][ T1] kernel_init+0x12/0x1c5 [ 36.604932][ T1] ret_from_fork+0x24/0x30 [ 36.604978][ T1] mmgrab (____ptrval____) to 4 [ 36.609842][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.614932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.614932][ T1] Call Trace: [ 36.614932][ T1] dump_stack+0x172/0x1f0 [ 36.614932][ T1] __schedule+0xd03/0x1580 [ 36.614932][ T1] ? __sched_text_start+0x8/0x8 [ 36.614932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.614932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.614932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.614932][ T1] preempt_schedule+0x4b/0x60 [ 36.614932][ T1] ___preempt_schedule+0x16/0x18 [ 36.614932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.614932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.614932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.614932][ T1] ? kasan_check_read+0x11/0x20 [ 36.614932][ T1] wake_up_process+0x10/0x20 [ 36.614932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.614932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.614932][ T1] ? find_held_lock+0x35/0x130 [ 36.614932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.614932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.614932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.614932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.614932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.614932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.614932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.614932][ T1] alloc_workqueue+0x669/0xf00 [ 36.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.614932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.614932][ T1] ? cpumask_next+0x41/0x50 [ 36.614932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.614932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.614932][ T1] init_mm_internals+0x24/0x3c9 [ 36.614932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.614932][ T1] ? rest_init+0x37b/0x37b [ 36.614932][ T1] kernel_init+0x12/0x1c5 [ 36.614932][ T1] ret_from_fork+0x24/0x30 [ 36.614975][ T7] mmdrop (____ptrval____) before 4 [ 36.624968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.632361][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.634932][ T7] Workqueue: 0x0 (events) [ 36.634932][ T7] Call Trace: [ 36.634932][ T7] dump_stack+0x172/0x1f0 [ 36.634932][ T7] finish_task_switch+0x239/0x790 [ 36.634932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.634932][ T7] __schedule+0x7d3/0x1580 [ 36.634932][ T7] ? __sched_text_start+0x8/0x8 [ 36.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.634932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.634932][ T7] ? kthread_data+0x58/0xc0 [ 36.634932][ T7] schedule+0xa8/0x260 [ 36.634932][ T7] worker_thread+0x248/0xe40 [ 36.634932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.634932][ T7] kthread+0x354/0x420 [ 36.634932][ T7] ? process_one_work+0x1790/0x1790 [ 36.634932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.634932][ T7] ret_from_fork+0x24/0x30 [ 36.634979][ T7] mmgrab (____ptrval____) to 4 [ 36.639850][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.644932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.644932][ T7] Workqueue: 0x0 (events) [ 36.644932][ T7] Call Trace: [ 36.644932][ T7] dump_stack+0x172/0x1f0 [ 36.644932][ T7] __schedule+0xd03/0x1580 [ 36.644932][ T7] ? __sched_text_start+0x8/0x8 [ 36.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.644932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.644932][ T7] ? kthread_data+0x58/0xc0 [ 36.644932][ T7] schedule+0xa8/0x260 [ 36.644932][ T7] worker_thread+0x248/0xe40 [ 36.644932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.644932][ T7] kthread+0x354/0x420 [ 36.644932][ T7] ? process_one_work+0x1790/0x1790 [ 36.644932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.644932][ T7] ret_from_fork+0x24/0x30 [ 36.644965][ T2] mmdrop (____ptrval____) before 4 [ 36.654971][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.662263][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.664932][ T2] Call Trace: [ 36.664932][ T2] dump_stack+0x172/0x1f0 [ 36.664932][ T2] finish_task_switch+0x239/0x790 [ 36.664932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.664932][ T2] __schedule+0x7d3/0x1580 [ 36.664932][ T2] ? __sched_text_start+0x8/0x8 [ 36.664932][ T2] schedule+0xa8/0x260 [ 36.664932][ T2] kthreadd+0x5cc/0x740 [ 36.664932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.664932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.664932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.664932][ T2] ret_from_fork+0x24/0x30 [ 36.664977][ T2] mmgrab (____ptrval____) to 4 [ 36.669913][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.674932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.674932][ T2] Call Trace: [ 36.674932][ T2] dump_stack+0x172/0x1f0 [ 36.674932][ T2] __schedule+0xd03/0x1580 [ 36.674932][ T2] ? __sched_text_start+0x8/0x8 [ 36.674932][ T2] schedule+0xa8/0x260 [ 36.674932][ T2] kthreadd+0x5cc/0x740 [ 36.674932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.674932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.674932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.674932][ T2] ret_from_fork+0x24/0x30 [ 36.674963][ T8] mmdrop (____ptrval____) before 4 [ 36.680152][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.684932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.684932][ T8] Call Trace: [ 36.684932][ T8] dump_stack+0x172/0x1f0 [ 36.684932][ T8] finish_task_switch+0x239/0x790 [ 36.684932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.684932][ T8] __schedule+0x7d3/0x1580 [ 36.684932][ T8] ? __sched_text_start+0x8/0x8 [ 36.684932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.684932][ T8] schedule+0xa8/0x260 [ 36.684932][ T8] kthread+0x27a/0x420 [ 36.684932][ T8] ? process_one_work+0x1790/0x1790 [ 36.684932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.684932][ T8] ret_from_fork+0x24/0x30 [ 36.684977][ T8] mmgrab (____ptrval____) to 4 [ 36.690026][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.694932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.694932][ T8] Call Trace: [ 36.694932][ T8] dump_stack+0x172/0x1f0 [ 36.694932][ T8] __schedule+0xd03/0x1580 [ 36.694932][ T8] ? __sched_text_start+0x8/0x8 [ 36.694932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.694932][ T8] schedule+0xa8/0x260 [ 36.694932][ T8] kthread+0x27a/0x420 [ 36.694932][ T8] ? process_one_work+0x1790/0x1790 [ 36.694932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.694932][ T8] ret_from_fork+0x24/0x30 [ 36.694966][ T1] mmdrop (____ptrval____) before 4 [ 36.700148][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.704932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.704932][ T1] Call Trace: [ 36.704932][ T1] dump_stack+0x172/0x1f0 [ 36.704932][ T1] finish_task_switch+0x239/0x790 [ 36.704932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.704932][ T1] __schedule+0x7d3/0x1580 [ 36.704932][ T1] ? __sched_text_start+0x8/0x8 [ 36.704932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.704932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.704932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.704932][ T1] preempt_schedule+0x4b/0x60 [ 36.704932][ T1] ___preempt_schedule+0x16/0x18 [ 36.704932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.704932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.704932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.704932][ T1] ? kasan_check_read+0x11/0x20 [ 36.704932][ T1] wake_up_process+0x10/0x20 [ 36.704932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.704932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.704932][ T1] ? find_held_lock+0x35/0x130 [ 36.704932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.704932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.704932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.704932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.704932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.704932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.704932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.704932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.704932][ T1] alloc_workqueue+0x669/0xf00 [ 36.704932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.704932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.704932][ T1] ? cpumask_next+0x41/0x50 [ 36.704932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.704932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.704932][ T1] init_mm_internals+0x24/0x3c9 [ 36.704932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.704932][ T1] ? rest_init+0x37b/0x37b [ 36.704932][ T1] kernel_init+0x12/0x1c5 [ 36.704932][ T1] ret_from_fork+0x24/0x30 [ 36.704977][ T1] mmgrab (____ptrval____) to 4 [ 36.709740][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.714932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.714932][ T1] Call Trace: [ 36.714932][ T1] dump_stack+0x172/0x1f0 [ 36.714932][ T1] __schedule+0xd03/0x1580 [ 36.714932][ T1] ? __sched_text_start+0x8/0x8 [ 36.714932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.714932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.714932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.714932][ T1] preempt_schedule+0x4b/0x60 [ 36.714932][ T1] ___preempt_schedule+0x16/0x18 [ 36.714932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.714932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.714932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.714932][ T1] ? kasan_check_read+0x11/0x20 [ 36.714932][ T1] wake_up_process+0x10/0x20 [ 36.714932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.714932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.714932][ T1] ? find_held_lock+0x35/0x130 [ 36.714932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.714932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.714932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.714932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.714932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.714932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.714932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.714932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.714932][ T1] alloc_workqueue+0x669/0xf00 [ 36.714932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.714932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.714932][ T1] ? cpumask_next+0x41/0x50 [ 36.714932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.714932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.714932][ T1] init_mm_internals+0x24/0x3c9 [ 36.714932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.714932][ T1] ? rest_init+0x37b/0x37b [ 36.714932][ T1] kernel_init+0x12/0x1c5 [ 36.714932][ T1] ret_from_fork+0x24/0x30 [ 36.714963][ T7] mmdrop (____ptrval____) before 4 [ 36.724974][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.732345][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.734932][ T7] Workqueue: 0x0 (events) [ 36.734932][ T7] Call Trace: [ 36.734932][ T7] dump_stack+0x172/0x1f0 [ 36.734932][ T7] finish_task_switch+0x239/0x790 [ 36.734932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.734932][ T7] __schedule+0x7d3/0x1580 [ 36.734932][ T7] ? __sched_text_start+0x8/0x8 [ 36.734932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.734932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.734932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.734932][ T7] ? kthread_data+0x58/0xc0 [ 36.734932][ T7] schedule+0xa8/0x260 [ 36.734932][ T7] worker_thread+0x248/0xe40 [ 36.734932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.734932][ T7] kthread+0x354/0x420 [ 36.734932][ T7] ? process_one_work+0x1790/0x1790 [ 36.734932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.734932][ T7] ret_from_fork+0x24/0x30 [ 36.734980][ T7] mmgrab (____ptrval____) to 4 [ 36.740079][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.744932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.744932][ T7] Workqueue: 0x0 (events) [ 36.744932][ T7] Call Trace: [ 36.744932][ T7] dump_stack+0x172/0x1f0 [ 36.744932][ T7] __schedule+0xd03/0x1580 [ 36.744932][ T7] ? __sched_text_start+0x8/0x8 [ 36.744932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.744932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.744932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.744932][ T7] ? kthread_data+0x58/0xc0 [ 36.744932][ T7] schedule+0xa8/0x260 [ 36.744932][ T7] worker_thread+0x248/0xe40 [ 36.744932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.744932][ T7] kthread+0x354/0x420 [ 36.744932][ T7] ? process_one_work+0x1790/0x1790 [ 36.744932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.744932][ T7] ret_from_fork+0x24/0x30 [ 36.744978][ T2] mmdrop (____ptrval____) before 4 [ 36.754966][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.762385][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.764932][ T2] Call Trace: [ 36.764932][ T2] dump_stack+0x172/0x1f0 [ 36.764932][ T2] finish_task_switch+0x239/0x790 [ 36.764932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.764932][ T2] __schedule+0x7d3/0x1580 [ 36.764932][ T2] ? __sched_text_start+0x8/0x8 [ 36.764932][ T2] schedule+0xa8/0x260 [ 36.764932][ T2] kthreadd+0x5cc/0x740 [ 36.764932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.764932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.764932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.764932][ T2] ret_from_fork+0x24/0x30 [ 36.764974][ T2] mmgrab (____ptrval____) to 4 [ 36.769838][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.774932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.774932][ T2] Call Trace: [ 36.774932][ T2] dump_stack+0x172/0x1f0 [ 36.774932][ T2] __schedule+0xd03/0x1580 [ 36.774932][ T2] ? __sched_text_start+0x8/0x8 [ 36.774932][ T2] schedule+0xa8/0x260 [ 36.774932][ T2] kthreadd+0x5cc/0x740 [ 36.774932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.774932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.774932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.774932][ T2] ret_from_fork+0x24/0x30 [ 36.774963][ T8] mmdrop (____ptrval____) before 4 [ 36.784967][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.792444][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.794932][ T8] Call Trace: [ 36.794932][ T8] dump_stack+0x172/0x1f0 [ 36.794932][ T8] finish_task_switch+0x239/0x790 [ 36.794932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.794932][ T8] __schedule+0x7d3/0x1580 [ 36.794932][ T8] ? __sched_text_start+0x8/0x8 [ 36.794932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.794932][ T8] schedule+0xa8/0x260 [ 36.794932][ T8] kthread+0x27a/0x420 [ 36.794932][ T8] ? process_one_work+0x1790/0x1790 [ 36.794932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.794932][ T8] ret_from_fork+0x24/0x30 [ 36.794976][ T8] mmgrab (____ptrval____) to 4 [ 36.799747][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.804932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.804932][ T8] Call Trace: [ 36.804932][ T8] dump_stack+0x172/0x1f0 [ 36.804932][ T8] __schedule+0xd03/0x1580 [ 36.804932][ T8] ? __sched_text_start+0x8/0x8 [ 36.804932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.804932][ T8] schedule+0xa8/0x260 [ 36.804932][ T8] kthread+0x27a/0x420 [ 36.804932][ T8] ? process_one_work+0x1790/0x1790 [ 36.804932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.804932][ T8] ret_from_fork+0x24/0x30 [ 36.804964][ T1] mmdrop (____ptrval____) before 4 [ 36.814974][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.822197][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.824932][ T1] Call Trace: [ 36.824932][ T1] dump_stack+0x172/0x1f0 [ 36.824932][ T1] finish_task_switch+0x239/0x790 [ 36.824932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.824932][ T1] __schedule+0x7d3/0x1580 [ 36.824932][ T1] ? __sched_text_start+0x8/0x8 [ 36.824932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.824932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.824932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.824932][ T1] preempt_schedule+0x4b/0x60 [ 36.824932][ T1] ___preempt_schedule+0x16/0x18 [ 36.824932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.824932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.824932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.824932][ T1] ? kasan_check_read+0x11/0x20 [ 36.824932][ T1] wake_up_process+0x10/0x20 [ 36.824932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.824932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.824932][ T1] ? find_held_lock+0x35/0x130 [ 36.824932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.824932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.824932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.824932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.824932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.824932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.824932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.824932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.824932][ T1] alloc_workqueue+0x669/0xf00 [ 36.824932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.824932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.824932][ T1] ? cpumask_next+0x41/0x50 [ 36.824932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.824932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.824932][ T1] init_mm_internals+0x24/0x3c9 [ 36.824932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.824932][ T1] ? rest_init+0x37b/0x37b [ 36.824932][ T1] kernel_init+0x12/0x1c5 [ 36.824932][ T1] ret_from_fork+0x24/0x30 [ 36.824989][ T1] mmgrab (____ptrval____) to 4 [ 36.829967][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.834932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.834932][ T1] Call Trace: [ 36.834932][ T1] dump_stack+0x172/0x1f0 [ 36.834932][ T1] __schedule+0xd03/0x1580 [ 36.834932][ T1] ? __sched_text_start+0x8/0x8 [ 36.834932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.834932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.834932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.834932][ T1] preempt_schedule+0x4b/0x60 [ 36.834932][ T1] ___preempt_schedule+0x16/0x18 [ 36.834932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.834932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.834932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.834932][ T1] ? kasan_check_read+0x11/0x20 [ 36.834932][ T1] wake_up_process+0x10/0x20 [ 36.834932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.834932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.834932][ T1] ? find_held_lock+0x35/0x130 [ 36.834932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.834932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.834932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.834932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.834932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.834932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.834932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.834932][ T1] alloc_workqueue+0x669/0xf00 [ 36.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.834932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.834932][ T1] ? cpumask_next+0x41/0x50 [ 36.834932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.834932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.834932][ T1] init_mm_internals+0x24/0x3c9 [ 36.834932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.834932][ T1] ? rest_init+0x37b/0x37b [ 36.834932][ T1] kernel_init+0x12/0x1c5 [ 36.834932][ T1] ret_from_fork+0x24/0x30 [ 36.834966][ T7] mmdrop (____ptrval____) before 4 [ 36.840521][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.844932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.844932][ T7] Workqueue: 0x0 (events) [ 36.844932][ T7] Call Trace: [ 36.844932][ T7] dump_stack+0x172/0x1f0 [ 36.844932][ T7] finish_task_switch+0x239/0x790 [ 36.844932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.844932][ T7] __schedule+0x7d3/0x1580 [ 36.844932][ T7] ? __sched_text_start+0x8/0x8 [ 36.844932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.844932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.844932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.844932][ T7] ? kthread_data+0x58/0xc0 [ 36.844932][ T7] schedule+0xa8/0x260 [ 36.844932][ T7] worker_thread+0x248/0xe40 [ 36.844932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.844932][ T7] kthread+0x354/0x420 [ 36.844932][ T7] ? process_one_work+0x1790/0x1790 [ 36.844932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.844932][ T7] ret_from_fork+0x24/0x30 [ 36.844976][ T7] mmgrab (____ptrval____) to 4 [ 36.849739][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.854932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.854932][ T7] Workqueue: 0x0 (events) [ 36.854932][ T7] Call Trace: [ 36.854932][ T7] dump_stack+0x172/0x1f0 [ 36.854932][ T7] __schedule+0xd03/0x1580 [ 36.854932][ T7] ? __sched_text_start+0x8/0x8 [ 36.854932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.854932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.854932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.854932][ T7] ? kthread_data+0x58/0xc0 [ 36.854932][ T7] schedule+0xa8/0x260 [ 36.854932][ T7] worker_thread+0x248/0xe40 [ 36.854932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.854932][ T7] kthread+0x354/0x420 [ 36.854932][ T7] ? process_one_work+0x1790/0x1790 [ 36.854932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.854932][ T7] ret_from_fork+0x24/0x30 [ 36.854964][ T2] mmdrop (____ptrval____) before 4 [ 36.860658][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.864932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.864932][ T2] Call Trace: [ 36.864932][ T2] dump_stack+0x172/0x1f0 [ 36.864932][ T2] finish_task_switch+0x239/0x790 [ 36.864932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.864932][ T2] __schedule+0x7d3/0x1580 [ 36.864932][ T2] ? __sched_text_start+0x8/0x8 [ 36.864932][ T2] schedule+0xa8/0x260 [ 36.864932][ T2] kthreadd+0x5cc/0x740 [ 36.864932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.864932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.864932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.864932][ T2] ret_from_fork+0x24/0x30 [ 36.864975][ T2] mmgrab (____ptrval____) to 4 [ 36.869858][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.874932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.874932][ T2] Call Trace: [ 36.874932][ T2] dump_stack+0x172/0x1f0 [ 36.874932][ T2] __schedule+0xd03/0x1580 [ 36.874932][ T2] ? __sched_text_start+0x8/0x8 [ 36.874932][ T2] schedule+0xa8/0x260 [ 36.874932][ T2] kthreadd+0x5cc/0x740 [ 36.874932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.874932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.874932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.874932][ T2] ret_from_fork+0x24/0x30 [ 36.874963][ T8] mmdrop (____ptrval____) before 4 [ 36.880073][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.884932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.884932][ T8] Call Trace: [ 36.884932][ T8] dump_stack+0x172/0x1f0 [ 36.884932][ T8] finish_task_switch+0x239/0x790 [ 36.884932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.884932][ T8] __schedule+0x7d3/0x1580 [ 36.884932][ T8] ? __sched_text_start+0x8/0x8 [ 36.884932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.884932][ T8] schedule+0xa8/0x260 [ 36.884932][ T8] kthread+0x27a/0x420 [ 36.884932][ T8] ? process_one_work+0x1790/0x1790 [ 36.884932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.884932][ T8] ret_from_fork+0x24/0x30 [ 36.885000][ T8] mmgrab (____ptrval____) to 4 [ 36.890205][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.894932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.894932][ T8] Call Trace: [ 36.894932][ T8] dump_stack+0x172/0x1f0 [ 36.894932][ T8] __schedule+0xd03/0x1580 [ 36.894932][ T8] ? __sched_text_start+0x8/0x8 [ 36.894932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.894932][ T8] schedule+0xa8/0x260 [ 36.894932][ T8] kthread+0x27a/0x420 [ 36.894932][ T8] ? process_one_work+0x1790/0x1790 [ 36.894932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.894932][ T8] ret_from_fork+0x24/0x30 [ 36.894969][ T1] mmdrop (____ptrval____) before 4 [ 36.900237][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.904932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.904932][ T1] Call Trace: [ 36.904932][ T1] dump_stack+0x172/0x1f0 [ 36.904932][ T1] finish_task_switch+0x239/0x790 [ 36.904932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.904932][ T1] __schedule+0x7d3/0x1580 [ 36.904932][ T1] ? __sched_text_start+0x8/0x8 [ 36.904932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.904932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.904932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.904932][ T1] preempt_schedule+0x4b/0x60 [ 36.904932][ T1] ___preempt_schedule+0x16/0x18 [ 36.904932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.904932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.904932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.904932][ T1] ? kasan_check_read+0x11/0x20 [ 36.904932][ T1] wake_up_process+0x10/0x20 [ 36.904932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.904932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.904932][ T1] ? find_held_lock+0x35/0x130 [ 36.904932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.904932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.904932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.904932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.904932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.904932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.904932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.904932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.904932][ T1] alloc_workqueue+0x669/0xf00 [ 36.904932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.904932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.904932][ T1] ? cpumask_next+0x41/0x50 [ 36.904932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.904932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.904932][ T1] init_mm_internals+0x24/0x3c9 [ 36.904932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.904932][ T1] ? rest_init+0x37b/0x37b [ 36.904932][ T1] kernel_init+0x12/0x1c5 [ 36.904932][ T1] ret_from_fork+0x24/0x30 [ 36.904981][ T1] mmgrab (____ptrval____) to 4 [ 36.909793][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.914932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.914932][ T1] Call Trace: [ 36.914932][ T1] dump_stack+0x172/0x1f0 [ 36.914932][ T1] __schedule+0xd03/0x1580 [ 36.914932][ T1] ? __sched_text_start+0x8/0x8 [ 36.914932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.914932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.914932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.914932][ T1] preempt_schedule+0x4b/0x60 [ 36.914932][ T1] ___preempt_schedule+0x16/0x18 [ 36.914932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.914932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.914932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.914932][ T1] ? kasan_check_read+0x11/0x20 [ 36.914932][ T1] wake_up_process+0x10/0x20 [ 36.914932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.914932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.914932][ T1] ? find_held_lock+0x35/0x130 [ 36.914932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.914932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.914932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.914932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.914932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.914932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.914932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.914932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.914932][ T1] alloc_workqueue+0x669/0xf00 [ 36.914932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.914932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.914932][ T1] ? cpumask_next+0x41/0x50 [ 36.914932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.914932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.914932][ T1] init_mm_internals+0x24/0x3c9 [ 36.914932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.914932][ T1] ? rest_init+0x37b/0x37b [ 36.914932][ T1] kernel_init+0x12/0x1c5 [ 36.914932][ T1] ret_from_fork+0x24/0x30 [ 36.914960][ T7] mmdrop (____ptrval____) before 4 [ 36.920237][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.924932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.924932][ T7] Workqueue: 0x0 (events) [ 36.924932][ T7] Call Trace: [ 36.924932][ T7] dump_stack+0x172/0x1f0 [ 36.924932][ T7] finish_task_switch+0x239/0x790 [ 36.924932][ T7] ? dump_stack+0x1de/0x1f0 [ 36.924932][ T7] __schedule+0x7d3/0x1580 [ 36.924932][ T7] ? __sched_text_start+0x8/0x8 [ 36.924932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.924932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.924932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.924932][ T7] ? kthread_data+0x58/0xc0 [ 36.924932][ T7] schedule+0xa8/0x260 [ 36.924932][ T7] worker_thread+0x248/0xe40 [ 36.924932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.924932][ T7] kthread+0x354/0x420 [ 36.924932][ T7] ? process_one_work+0x1790/0x1790 [ 36.924932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.924932][ T7] ret_from_fork+0x24/0x30 [ 36.924976][ T7] mmgrab (____ptrval____) to 4 [ 36.929975][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 36.934932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.934932][ T7] Workqueue: 0x0 (events) [ 36.934932][ T7] Call Trace: [ 36.934932][ T7] dump_stack+0x172/0x1f0 [ 36.934932][ T7] __schedule+0xd03/0x1580 [ 36.934932][ T7] ? __sched_text_start+0x8/0x8 [ 36.934932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.934932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 36.934932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.934932][ T7] ? kthread_data+0x58/0xc0 [ 36.934932][ T7] schedule+0xa8/0x260 [ 36.934932][ T7] worker_thread+0x248/0xe40 [ 36.934932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 36.934932][ T7] kthread+0x354/0x420 [ 36.934932][ T7] ? process_one_work+0x1790/0x1790 [ 36.934932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.934932][ T7] ret_from_fork+0x24/0x30 [ 36.934962][ T2] mmdrop (____ptrval____) before 4 [ 36.940643][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.944932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.944932][ T2] Call Trace: [ 36.944932][ T2] dump_stack+0x172/0x1f0 [ 36.944932][ T2] finish_task_switch+0x239/0x790 [ 36.944932][ T2] ? dump_stack+0x1de/0x1f0 [ 36.944932][ T2] __schedule+0x7d3/0x1580 [ 36.944932][ T2] ? __sched_text_start+0x8/0x8 [ 36.944932][ T2] schedule+0xa8/0x260 [ 36.944932][ T2] kthreadd+0x5cc/0x740 [ 36.944932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.944932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.944932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.944932][ T2] ret_from_fork+0x24/0x30 [ 36.944975][ T2] mmgrab (____ptrval____) to 4 [ 36.949872][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 36.954932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.954932][ T2] Call Trace: [ 36.954932][ T2] dump_stack+0x172/0x1f0 [ 36.954932][ T2] __schedule+0xd03/0x1580 [ 36.954932][ T2] ? __sched_text_start+0x8/0x8 [ 36.954932][ T2] schedule+0xa8/0x260 [ 36.954932][ T2] kthreadd+0x5cc/0x740 [ 36.954932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.954932][ T2] ? calculate_sigpending+0x87/0xa0 [ 36.954932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 36.954932][ T2] ret_from_fork+0x24/0x30 [ 36.954962][ T8] mmdrop (____ptrval____) before 4 [ 36.960075][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.964932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.964932][ T8] Call Trace: [ 36.964932][ T8] dump_stack+0x172/0x1f0 [ 36.964932][ T8] finish_task_switch+0x239/0x790 [ 36.964932][ T8] ? dump_stack+0x1de/0x1f0 [ 36.964932][ T8] __schedule+0x7d3/0x1580 [ 36.964932][ T8] ? __sched_text_start+0x8/0x8 [ 36.964932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.964932][ T8] schedule+0xa8/0x260 [ 36.964932][ T8] kthread+0x27a/0x420 [ 36.964932][ T8] ? process_one_work+0x1790/0x1790 [ 36.964932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.964932][ T8] ret_from_fork+0x24/0x30 [ 36.964980][ T8] mmgrab (____ptrval____) to 4 [ 36.969745][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 36.974932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.974932][ T8] Call Trace: [ 36.974932][ T8] dump_stack+0x172/0x1f0 [ 36.974932][ T8] __schedule+0xd03/0x1580 [ 36.974932][ T8] ? __sched_text_start+0x8/0x8 [ 36.974932][ T8] ? ___preempt_schedule+0x16/0x18 [ 36.974932][ T8] schedule+0xa8/0x260 [ 36.974932][ T8] kthread+0x27a/0x420 [ 36.974932][ T8] ? process_one_work+0x1790/0x1790 [ 36.974932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 36.974932][ T8] ret_from_fork+0x24/0x30 [ 36.974964][ T1] mmdrop (____ptrval____) before 4 [ 36.980076][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.984932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.984932][ T1] Call Trace: [ 36.984932][ T1] dump_stack+0x172/0x1f0 [ 36.984932][ T1] finish_task_switch+0x239/0x790 [ 36.984932][ T1] ? dump_stack+0x1de/0x1f0 [ 36.984932][ T1] __schedule+0x7d3/0x1580 [ 36.984932][ T1] ? __sched_text_start+0x8/0x8 [ 36.984932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.984932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.984932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.984932][ T1] preempt_schedule+0x4b/0x60 [ 36.984932][ T1] ___preempt_schedule+0x16/0x18 [ 36.984932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.984932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.984932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.984932][ T1] ? kasan_check_read+0x11/0x20 [ 36.984932][ T1] wake_up_process+0x10/0x20 [ 36.984932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.984932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.984932][ T1] ? find_held_lock+0x35/0x130 [ 36.984932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.984932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.984932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.984932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.984932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.984932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.984932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.984932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.984932][ T1] alloc_workqueue+0x669/0xf00 [ 36.984932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.984932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.984932][ T1] ? cpumask_next+0x41/0x50 [ 36.984932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.984932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.984932][ T1] init_mm_internals+0x24/0x3c9 [ 36.984932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.984932][ T1] ? rest_init+0x37b/0x37b [ 36.984932][ T1] kernel_init+0x12/0x1c5 [ 36.984932][ T1] ret_from_fork+0x24/0x30 [ 36.984981][ T1] mmgrab (____ptrval____) to 4 [ 36.989747][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 36.994932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.994932][ T1] Call Trace: [ 36.994932][ T1] dump_stack+0x172/0x1f0 [ 36.994932][ T1] __schedule+0xd03/0x1580 [ 36.994932][ T1] ? __sched_text_start+0x8/0x8 [ 36.994932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 36.994932][ T1] ? preempt_schedule+0x4b/0x60 [ 36.994932][ T1] preempt_schedule_common+0x4f/0xe0 [ 36.994932][ T1] preempt_schedule+0x4b/0x60 [ 36.994932][ T1] ___preempt_schedule+0x16/0x18 [ 36.994932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 36.994932][ T1] try_to_wake_up+0xc8/0x13f0 [ 36.994932][ T1] ? migrate_swap_stop+0x920/0x920 [ 36.994932][ T1] ? kasan_check_read+0x11/0x20 [ 36.994932][ T1] wake_up_process+0x10/0x20 [ 36.994932][ T1] __kthread_create_on_node+0x281/0x460 [ 36.994932][ T1] ? kthread_parkme+0xb0/0xb0 [ 36.994932][ T1] ? find_held_lock+0x35/0x130 [ 36.994932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.994932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 36.994932][ T1] kthread_create_on_node+0xbb/0xf0 [ 36.994932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 36.994932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 36.994932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 36.994932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.994932][ T1] init_rescuer.part.0+0x7d/0x190 [ 36.994932][ T1] alloc_workqueue+0x669/0xf00 [ 36.994932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 36.994932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 36.994932][ T1] ? cpumask_next+0x41/0x50 [ 36.994932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 36.994932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 36.994932][ T1] init_mm_internals+0x24/0x3c9 [ 36.994932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 36.994932][ T1] ? rest_init+0x37b/0x37b [ 36.994932][ T1] kernel_init+0x12/0x1c5 [ 36.994932][ T1] ret_from_fork+0x24/0x30 [ 36.994963][ T7] mmdrop (____ptrval____) before 4 [ 37.004964][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.012680][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.014932][ T7] Workqueue: 0x0 (events) [ 37.014932][ T7] Call Trace: [ 37.014932][ T7] dump_stack+0x172/0x1f0 [ 37.014932][ T7] finish_task_switch+0x239/0x790 [ 37.014932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.014932][ T7] __schedule+0x7d3/0x1580 [ 37.014932][ T7] ? __sched_text_start+0x8/0x8 [ 37.014932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.014932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.014932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.014932][ T7] ? kthread_data+0x58/0xc0 [ 37.014932][ T7] schedule+0xa8/0x260 [ 37.014932][ T7] worker_thread+0x248/0xe40 [ 37.014932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.014932][ T7] kthread+0x354/0x420 [ 37.014932][ T7] ? process_one_work+0x1790/0x1790 [ 37.014932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.014932][ T7] ret_from_fork+0x24/0x30 [ 37.014977][ T7] mmgrab (____ptrval____) to 4 [ 37.019751][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.024932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.024932][ T7] Workqueue: 0x0 (events) [ 37.024932][ T7] Call Trace: [ 37.024932][ T7] dump_stack+0x172/0x1f0 [ 37.024932][ T7] __schedule+0xd03/0x1580 [ 37.024932][ T7] ? __sched_text_start+0x8/0x8 [ 37.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.024932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.024932][ T7] ? kthread_data+0x58/0xc0 [ 37.024932][ T7] schedule+0xa8/0x260 [ 37.024932][ T7] worker_thread+0x248/0xe40 [ 37.024932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.024932][ T7] kthread+0x354/0x420 [ 37.024932][ T7] ? process_one_work+0x1790/0x1790 [ 37.024932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.024932][ T7] ret_from_fork+0x24/0x30 [ 37.024966][ T2] mmdrop (____ptrval____) before 4 [ 37.034971][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.042103][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.044932][ T2] Call Trace: [ 37.044932][ T2] dump_stack+0x172/0x1f0 [ 37.044932][ T2] finish_task_switch+0x239/0x790 [ 37.044932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.044932][ T2] __schedule+0x7d3/0x1580 [ 37.044932][ T2] ? __sched_text_start+0x8/0x8 [ 37.044932][ T2] schedule+0xa8/0x260 [ 37.044932][ T2] kthreadd+0x5cc/0x740 [ 37.044932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.044932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.044932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.044932][ T2] ret_from_fork+0x24/0x30 [ 37.044974][ T2] mmgrab (____ptrval____) to 4 [ 37.049851][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.054932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.054932][ T2] Call Trace: [ 37.054932][ T2] dump_stack+0x172/0x1f0 [ 37.054932][ T2] __schedule+0xd03/0x1580 [ 37.054932][ T2] ? __sched_text_start+0x8/0x8 [ 37.054932][ T2] schedule+0xa8/0x260 [ 37.054932][ T2] kthreadd+0x5cc/0x740 [ 37.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.054932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.054932][ T2] ret_from_fork+0x24/0x30 [ 37.054961][ T8] mmdrop (____ptrval____) before 4 [ 37.060080][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.064932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.064932][ T8] Call Trace: [ 37.064932][ T8] dump_stack+0x172/0x1f0 [ 37.064932][ T8] finish_task_switch+0x239/0x790 [ 37.064932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.064932][ T8] __schedule+0x7d3/0x1580 [ 37.064932][ T8] ? __sched_text_start+0x8/0x8 [ 37.064932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.064932][ T8] schedule+0xa8/0x260 [ 37.064932][ T8] kthread+0x27a/0x420 [ 37.064932][ T8] ? process_one_work+0x1790/0x1790 [ 37.064932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.064932][ T8] ret_from_fork+0x24/0x30 [ 37.064972][ T8] mmgrab (____ptrval____) to 4 [ 37.069906][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.074932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.074932][ T8] Call Trace: [ 37.074932][ T8] dump_stack+0x172/0x1f0 [ 37.074932][ T8] __schedule+0xd03/0x1580 [ 37.074932][ T8] ? __sched_text_start+0x8/0x8 [ 37.074932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.074932][ T8] schedule+0xa8/0x260 [ 37.074932][ T8] kthread+0x27a/0x420 [ 37.074932][ T8] ? process_one_work+0x1790/0x1790 [ 37.074932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.074932][ T8] ret_from_fork+0x24/0x30 [ 37.074962][ T1] mmdrop (____ptrval____) before 4 [ 37.080336][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.084932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.084932][ T1] Call Trace: [ 37.084932][ T1] dump_stack+0x172/0x1f0 [ 37.084932][ T1] finish_task_switch+0x239/0x790 [ 37.084932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.084932][ T1] __schedule+0x7d3/0x1580 [ 37.084932][ T1] ? __sched_text_start+0x8/0x8 [ 37.084932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.084932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.084932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.084932][ T1] preempt_schedule+0x4b/0x60 [ 37.084932][ T1] ___preempt_schedule+0x16/0x18 [ 37.084932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.084932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.084932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.084932][ T1] ? kasan_check_read+0x11/0x20 [ 37.084932][ T1] wake_up_process+0x10/0x20 [ 37.084932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.084932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.084932][ T1] ? find_held_lock+0x35/0x130 [ 37.084932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.084932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.084932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.084932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.084932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.084932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.084932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.084932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.084932][ T1] alloc_workqueue+0x669/0xf00 [ 37.084932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.084932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.084932][ T1] ? cpumask_next+0x41/0x50 [ 37.084932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.084932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.084932][ T1] init_mm_internals+0x24/0x3c9 [ 37.084932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.084932][ T1] ? rest_init+0x37b/0x37b [ 37.084932][ T1] kernel_init+0x12/0x1c5 [ 37.084932][ T1] ret_from_fork+0x24/0x30 [ 37.084973][ T1] mmgrab (____ptrval____) to 4 [ 37.089727][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.094932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.094932][ T1] Call Trace: [ 37.094932][ T1] dump_stack+0x172/0x1f0 [ 37.094932][ T1] __schedule+0xd03/0x1580 [ 37.094932][ T1] ? __sched_text_start+0x8/0x8 [ 37.094932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.094932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.094932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.094932][ T1] preempt_schedule+0x4b/0x60 [ 37.094932][ T1] ___preempt_schedule+0x16/0x18 [ 37.094932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.094932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.094932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.094932][ T1] ? kasan_check_read+0x11/0x20 [ 37.094932][ T1] wake_up_process+0x10/0x20 [ 37.094932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.094932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.094932][ T1] ? find_held_lock+0x35/0x130 [ 37.094932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.094932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.094932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.094932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.094932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.094932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.094932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.094932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.094932][ T1] alloc_workqueue+0x669/0xf00 [ 37.094932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.094932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.094932][ T1] ? cpumask_next+0x41/0x50 [ 37.094932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.094932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.094932][ T1] init_mm_internals+0x24/0x3c9 [ 37.094932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.094932][ T1] ? rest_init+0x37b/0x37b [ 37.094932][ T1] kernel_init+0x12/0x1c5 [ 37.094932][ T1] ret_from_fork+0x24/0x30 [ 37.094962][ T8] mmdrop (____ptrval____) before 4 [ 37.100077][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.104932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.104932][ T8] Call Trace: [ 37.104932][ T8] dump_stack+0x172/0x1f0 [ 37.104932][ T8] finish_task_switch+0x239/0x790 [ 37.104932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.104932][ T8] __schedule+0x7d3/0x1580 [ 37.104932][ T8] ? __sched_text_start+0x8/0x8 [ 37.104932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.104932][ T8] schedule+0xa8/0x260 [ 37.104932][ T8] kthread+0x27a/0x420 [ 37.104932][ T8] ? process_one_work+0x1790/0x1790 [ 37.104932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.104932][ T8] ret_from_fork+0x24/0x30 [ 37.104977][ T8] mmgrab (____ptrval____) to 4 [ 37.109816][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.114932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.114932][ T8] Call Trace: [ 37.114932][ T8] dump_stack+0x172/0x1f0 [ 37.114932][ T8] __schedule+0xd03/0x1580 [ 37.114932][ T8] ? __sched_text_start+0x8/0x8 [ 37.114932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.114932][ T8] schedule+0xa8/0x260 [ 37.114932][ T8] kthread+0x27a/0x420 [ 37.114932][ T8] ? process_one_work+0x1790/0x1790 [ 37.114932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.114932][ T8] ret_from_fork+0x24/0x30 [ 37.114963][ T7] mmdrop (____ptrval____) before 4 [ 37.120078][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.124932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.124932][ T7] Workqueue: 0x0 (events) [ 37.124932][ T7] Call Trace: [ 37.124932][ T7] dump_stack+0x172/0x1f0 [ 37.124932][ T7] finish_task_switch+0x239/0x790 [ 37.124932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.124932][ T7] __schedule+0x7d3/0x1580 [ 37.124932][ T7] ? __sched_text_start+0x8/0x8 [ 37.124932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.124932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.124932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.124932][ T7] ? kthread_data+0x58/0xc0 [ 37.124932][ T7] schedule+0xa8/0x260 [ 37.124932][ T7] worker_thread+0x248/0xe40 [ 37.124932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.124932][ T7] kthread+0x354/0x420 [ 37.124932][ T7] ? process_one_work+0x1790/0x1790 [ 37.124932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.124932][ T7] ret_from_fork+0x24/0x30 [ 37.124986][ T7] mmgrab (____ptrval____) to 4 [ 37.129891][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.134932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.134932][ T7] Workqueue: 0x0 (events) [ 37.134932][ T7] Call Trace: [ 37.134932][ T7] dump_stack+0x172/0x1f0 [ 37.134932][ T7] __schedule+0xd03/0x1580 [ 37.134932][ T7] ? __sched_text_start+0x8/0x8 [ 37.134932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.134932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.134932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.134932][ T7] ? kthread_data+0x58/0xc0 [ 37.134932][ T7] schedule+0xa8/0x260 [ 37.134932][ T7] worker_thread+0x248/0xe40 [ 37.134932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.134932][ T7] kthread+0x354/0x420 [ 37.134932][ T7] ? process_one_work+0x1790/0x1790 [ 37.134932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.134932][ T7] ret_from_fork+0x24/0x30 [ 37.134971][ T2] mmdrop (____ptrval____) before 4 [ 37.140341][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.144932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.144932][ T2] Call Trace: [ 37.144932][ T2] dump_stack+0x172/0x1f0 [ 37.144932][ T2] finish_task_switch+0x239/0x790 [ 37.144932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.144932][ T2] __schedule+0x7d3/0x1580 [ 37.144932][ T2] ? __sched_text_start+0x8/0x8 [ 37.144932][ T2] schedule+0xa8/0x260 [ 37.144932][ T2] kthreadd+0x5cc/0x740 [ 37.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.144932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.144932][ T2] ret_from_fork+0x24/0x30 [ 37.144976][ T2] mmgrab (____ptrval____) to 4 [ 37.149781][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.154932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.154932][ T2] Call Trace: [ 37.154932][ T2] dump_stack+0x172/0x1f0 [ 37.154932][ T2] __schedule+0xd03/0x1580 [ 37.154932][ T2] ? __sched_text_start+0x8/0x8 [ 37.154932][ T2] schedule+0xa8/0x260 [ 37.154932][ T2] kthreadd+0x5cc/0x740 [ 37.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.154932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.154932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.154932][ T2] ret_from_fork+0x24/0x30 [ 37.154963][ T1] mmdrop (____ptrval____) before 4 [ 37.164975][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.172105][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.174932][ T1] Call Trace: [ 37.174932][ T1] dump_stack+0x172/0x1f0 [ 37.174932][ T1] finish_task_switch+0x239/0x790 [ 37.174932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.174932][ T1] __schedule+0x7d3/0x1580 [ 37.174932][ T1] ? __sched_text_start+0x8/0x8 [ 37.174932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.174932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.174932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.174932][ T1] preempt_schedule+0x4b/0x60 [ 37.174932][ T1] ___preempt_schedule+0x16/0x18 [ 37.174932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.174932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.174932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.174932][ T1] ? kasan_check_read+0x11/0x20 [ 37.174932][ T1] wake_up_process+0x10/0x20 [ 37.174932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.174932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.174932][ T1] ? find_held_lock+0x35/0x130 [ 37.174932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.174932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.174932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.174932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.174932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.174932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.174932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.174932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.174932][ T1] alloc_workqueue+0x669/0xf00 [ 37.174932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.174932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.174932][ T1] ? cpumask_next+0x41/0x50 [ 37.174932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.174932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.174932][ T1] init_mm_internals+0x24/0x3c9 [ 37.174932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.174932][ T1] ? rest_init+0x37b/0x37b [ 37.174932][ T1] kernel_init+0x12/0x1c5 [ 37.174932][ T1] ret_from_fork+0x24/0x30 [ 37.174973][ T1] mmgrab (____ptrval____) to 4 [ 37.180003][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.184932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.184932][ T1] Call Trace: [ 37.184932][ T1] dump_stack+0x172/0x1f0 [ 37.184932][ T1] __schedule+0xd03/0x1580 [ 37.184932][ T1] ? __sched_text_start+0x8/0x8 [ 37.184932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.184932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.184932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.184932][ T1] preempt_schedule+0x4b/0x60 [ 37.184932][ T1] ___preempt_schedule+0x16/0x18 [ 37.184932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.184932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.184932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.184932][ T1] ? kasan_check_read+0x11/0x20 [ 37.184932][ T1] wake_up_process+0x10/0x20 [ 37.184932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.184932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.184932][ T1] ? find_held_lock+0x35/0x130 [ 37.184932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.184932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.184932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.184932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.184932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.184932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.184932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.184932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.184932][ T1] alloc_workqueue+0x669/0xf00 [ 37.184932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.184932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.184932][ T1] ? cpumask_next+0x41/0x50 [ 37.184932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.184932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.184932][ T1] init_mm_internals+0x24/0x3c9 [ 37.184932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.184932][ T1] ? rest_init+0x37b/0x37b [ 37.184932][ T1] kernel_init+0x12/0x1c5 [ 37.184932][ T1] ret_from_fork+0x24/0x30 [ 37.184966][ T8] mmdrop (____ptrval____) before 4 [ 37.190087][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.194932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.194932][ T8] Call Trace: [ 37.194932][ T8] dump_stack+0x172/0x1f0 [ 37.194932][ T8] finish_task_switch+0x239/0x790 [ 37.194932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.194932][ T8] __schedule+0x7d3/0x1580 [ 37.194932][ T8] ? __sched_text_start+0x8/0x8 [ 37.194932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.194932][ T8] schedule+0xa8/0x260 [ 37.194932][ T8] kthread+0x27a/0x420 [ 37.194932][ T8] ? process_one_work+0x1790/0x1790 [ 37.194932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.194932][ T8] ret_from_fork+0x24/0x30 [ 37.194984][ T8] mmgrab (____ptrval____) to 4 [ 37.199891][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.204932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.204932][ T8] Call Trace: [ 37.204932][ T8] dump_stack+0x172/0x1f0 [ 37.204932][ T8] __schedule+0xd03/0x1580 [ 37.204932][ T8] ? __sched_text_start+0x8/0x8 [ 37.204932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.204932][ T8] schedule+0xa8/0x260 [ 37.204932][ T8] kthread+0x27a/0x420 [ 37.204932][ T8] ? process_one_work+0x1790/0x1790 [ 37.204932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.204932][ T8] ret_from_fork+0x24/0x30 [ 37.204964][ T7] mmdrop (____ptrval____) before 4 [ 37.214979][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.224932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.224932][ T7] Workqueue: 0x0 (events) [ 37.224932][ T7] Call Trace: [ 37.224932][ T7] dump_stack+0x172/0x1f0 [ 37.224932][ T7] finish_task_switch+0x239/0x790 [ 37.224932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.224932][ T7] __schedule+0x7d3/0x1580 [ 37.224932][ T7] ? __sched_text_start+0x8/0x8 [ 37.224932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.224932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.224932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.224932][ T7] ? kthread_data+0x58/0xc0 [ 37.224932][ T7] schedule+0xa8/0x260 [ 37.224932][ T7] worker_thread+0x248/0xe40 [ 37.224932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.224932][ T7] kthread+0x354/0x420 [ 37.224932][ T7] ? process_one_work+0x1790/0x1790 [ 37.224932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.224932][ T7] ret_from_fork+0x24/0x30 [ 37.224979][ T7] mmgrab (____ptrval____) to 4 [ 37.229749][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.234932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.234932][ T7] Workqueue: 0x0 (events) [ 37.234932][ T7] Call Trace: [ 37.234932][ T7] dump_stack+0x172/0x1f0 [ 37.234932][ T7] __schedule+0xd03/0x1580 [ 37.234932][ T7] ? __sched_text_start+0x8/0x8 [ 37.234932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.234932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.234932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.234932][ T7] ? kthread_data+0x58/0xc0 [ 37.234932][ T7] schedule+0xa8/0x260 [ 37.234932][ T7] worker_thread+0x248/0xe40 [ 37.234932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.234932][ T7] kthread+0x354/0x420 [ 37.234932][ T7] ? process_one_work+0x1790/0x1790 [ 37.234932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.234932][ T7] ret_from_fork+0x24/0x30 [ 37.234964][ T2] mmdrop (____ptrval____) before 4 [ 37.244978][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.251990][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.254932][ T2] Call Trace: [ 37.254932][ T2] dump_stack+0x172/0x1f0 [ 37.254932][ T2] finish_task_switch+0x239/0x790 [ 37.254932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.254932][ T2] __schedule+0x7d3/0x1580 [ 37.254932][ T2] ? __sched_text_start+0x8/0x8 [ 37.254932][ T2] schedule+0xa8/0x260 [ 37.254932][ T2] kthreadd+0x5cc/0x740 [ 37.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.254932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.254932][ T2] ret_from_fork+0x24/0x30 [ 37.254977][ T2] mmgrab (____ptrval____) to 4 [ 37.259788][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.264932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.264932][ T2] Call Trace: [ 37.264932][ T2] dump_stack+0x172/0x1f0 [ 37.264932][ T2] __schedule+0xd03/0x1580 [ 37.264932][ T2] ? __sched_text_start+0x8/0x8 [ 37.264932][ T2] schedule+0xa8/0x260 [ 37.264932][ T2] kthreadd+0x5cc/0x740 [ 37.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.264932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.264932][ T2] ret_from_fork+0x24/0x30 [ 37.264964][ T1] mmdrop (____ptrval____) before 4 [ 37.270188][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.274932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.274932][ T1] Call Trace: [ 37.274932][ T1] dump_stack+0x172/0x1f0 [ 37.274932][ T1] finish_task_switch+0x239/0x790 [ 37.274932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.274932][ T1] __schedule+0x7d3/0x1580 [ 37.274932][ T1] ? __sched_text_start+0x8/0x8 [ 37.274932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.274932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.274932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.274932][ T1] preempt_schedule+0x4b/0x60 [ 37.274932][ T1] ___preempt_schedule+0x16/0x18 [ 37.274932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.274932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.274932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.274932][ T1] ? kasan_check_read+0x11/0x20 [ 37.274932][ T1] wake_up_process+0x10/0x20 [ 37.274932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.274932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.274932][ T1] ? find_held_lock+0x35/0x130 [ 37.274932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.274932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.274932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.274932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.274932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.274932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.274932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.274932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.274932][ T1] alloc_workqueue+0x669/0xf00 [ 37.274932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.274932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.274932][ T1] ? cpumask_next+0x41/0x50 [ 37.274932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.274932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.274932][ T1] init_mm_internals+0x24/0x3c9 [ 37.274932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.274932][ T1] ? rest_init+0x37b/0x37b [ 37.274932][ T1] kernel_init+0x12/0x1c5 [ 37.274932][ T1] ret_from_fork+0x24/0x30 [ 37.274977][ T1] mmgrab (____ptrval____) to 4 [ 37.279745][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.284932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.284932][ T1] Call Trace: [ 37.284932][ T1] dump_stack+0x172/0x1f0 [ 37.284932][ T1] __schedule+0xd03/0x1580 [ 37.284932][ T1] ? __sched_text_start+0x8/0x8 [ 37.284932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.284932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.284932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.284932][ T1] preempt_schedule+0x4b/0x60 [ 37.284932][ T1] ___preempt_schedule+0x16/0x18 [ 37.284932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.284932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.284932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.284932][ T1] ? kasan_check_read+0x11/0x20 [ 37.284932][ T1] wake_up_process+0x10/0x20 [ 37.284932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.284932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.284932][ T1] ? find_held_lock+0x35/0x130 [ 37.284932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.284932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.284932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.284932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.284932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.284932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.284932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.284932][ T1] alloc_workqueue+0x669/0xf00 [ 37.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.284932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.284932][ T1] ? cpumask_next+0x41/0x50 [ 37.284932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.284932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.284932][ T1] init_mm_internals+0x24/0x3c9 [ 37.284932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.284932][ T1] ? rest_init+0x37b/0x37b [ 37.284932][ T1] kernel_init+0x12/0x1c5 [ 37.284932][ T1] ret_from_fork+0x24/0x30 [ 37.284964][ T8] mmdrop (____ptrval____) before 4 [ 37.294973][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.302447][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.304932][ T8] Call Trace: [ 37.304932][ T8] dump_stack+0x172/0x1f0 [ 37.304932][ T8] finish_task_switch+0x239/0x790 [ 37.304932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.304932][ T8] __schedule+0x7d3/0x1580 [ 37.304932][ T8] ? __sched_text_start+0x8/0x8 [ 37.304932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.304932][ T8] schedule+0xa8/0x260 [ 37.304932][ T8] kthread+0x27a/0x420 [ 37.304932][ T8] ? process_one_work+0x1790/0x1790 [ 37.304932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.304932][ T8] ret_from_fork+0x24/0x30 [ 37.304980][ T8] mmgrab (____ptrval____) to 4 [ 37.309950][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.314932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.314932][ T8] Call Trace: [ 37.314932][ T8] dump_stack+0x172/0x1f0 [ 37.314932][ T8] __schedule+0xd03/0x1580 [ 37.314932][ T8] ? __sched_text_start+0x8/0x8 [ 37.314932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.314932][ T8] schedule+0xa8/0x260 [ 37.314932][ T8] kthread+0x27a/0x420 [ 37.314932][ T8] ? process_one_work+0x1790/0x1790 [ 37.314932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.314932][ T8] ret_from_fork+0x24/0x30 [ 37.314969][ T7] mmdrop (____ptrval____) before 4 [ 37.324974][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.332258][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.334932][ T7] Workqueue: 0x0 (events) [ 37.334932][ T7] Call Trace: [ 37.334932][ T7] dump_stack+0x172/0x1f0 [ 37.334932][ T7] finish_task_switch+0x239/0x790 [ 37.334932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.334932][ T7] __schedule+0x7d3/0x1580 [ 37.334932][ T7] ? __sched_text_start+0x8/0x8 [ 37.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.334932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.334932][ T7] ? kthread_data+0x58/0xc0 [ 37.334932][ T7] schedule+0xa8/0x260 [ 37.334932][ T7] worker_thread+0x248/0xe40 [ 37.334932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.334932][ T7] kthread+0x354/0x420 [ 37.334932][ T7] ? process_one_work+0x1790/0x1790 [ 37.334932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.334932][ T7] ret_from_fork+0x24/0x30 [ 37.334977][ T7] mmgrab (____ptrval____) to 4 [ 37.339749][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.344932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.344932][ T7] Workqueue: 0x0 (events) [ 37.344932][ T7] Call Trace: [ 37.344932][ T7] dump_stack+0x172/0x1f0 [ 37.344932][ T7] __schedule+0xd03/0x1580 [ 37.344932][ T7] ? __sched_text_start+0x8/0x8 [ 37.344932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.344932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.344932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.344932][ T7] ? kthread_data+0x58/0xc0 [ 37.344932][ T7] schedule+0xa8/0x260 [ 37.344932][ T7] worker_thread+0x248/0xe40 [ 37.344932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.344932][ T7] kthread+0x354/0x420 [ 37.344932][ T7] ? process_one_work+0x1790/0x1790 [ 37.344932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.344932][ T7] ret_from_fork+0x24/0x30 [ 37.344963][ T2] mmdrop (____ptrval____) before 4 [ 37.354974][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.362049][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.364932][ T2] Call Trace: [ 37.364932][ T2] dump_stack+0x172/0x1f0 [ 37.364932][ T2] finish_task_switch+0x239/0x790 [ 37.364932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.364932][ T2] __schedule+0x7d3/0x1580 [ 37.364932][ T2] ? __sched_text_start+0x8/0x8 [ 37.364932][ T2] schedule+0xa8/0x260 [ 37.364932][ T2] kthreadd+0x5cc/0x740 [ 37.364932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.364932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.364932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.364932][ T2] ret_from_fork+0x24/0x30 [ 37.364977][ T2] mmgrab (____ptrval____) to 4 [ 37.369748][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.374932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.374932][ T2] Call Trace: [ 37.374932][ T2] dump_stack+0x172/0x1f0 [ 37.374932][ T2] __schedule+0xd03/0x1580 [ 37.374932][ T2] ? __sched_text_start+0x8/0x8 [ 37.374932][ T2] schedule+0xa8/0x260 [ 37.374932][ T2] kthreadd+0x5cc/0x740 [ 37.374932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.374932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.374932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.374932][ T2] ret_from_fork+0x24/0x30 [ 37.374965][ T1] mmdrop (____ptrval____) before 4 [ 37.380092][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.384932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.384932][ T1] Call Trace: [ 37.384932][ T1] dump_stack+0x172/0x1f0 [ 37.384932][ T1] finish_task_switch+0x239/0x790 [ 37.384932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.384932][ T1] __schedule+0x7d3/0x1580 [ 37.384932][ T1] ? __sched_text_start+0x8/0x8 [ 37.384932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.384932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.384932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.384932][ T1] preempt_schedule+0x4b/0x60 [ 37.384932][ T1] ___preempt_schedule+0x16/0x18 [ 37.384932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.384932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.384932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.384932][ T1] ? kasan_check_read+0x11/0x20 [ 37.384932][ T1] wake_up_process+0x10/0x20 [ 37.384932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.384932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.384932][ T1] ? find_held_lock+0x35/0x130 [ 37.384932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.384932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.384932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.384932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.384932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.384932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.384932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.384932][ T1] alloc_workqueue+0x669/0xf00 [ 37.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.384932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.384932][ T1] ? cpumask_next+0x41/0x50 [ 37.384932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.384932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.384932][ T1] init_mm_internals+0x24/0x3c9 [ 37.384932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.384932][ T1] ? rest_init+0x37b/0x37b [ 37.384932][ T1] kernel_init+0x12/0x1c5 [ 37.384932][ T1] ret_from_fork+0x24/0x30 [ 37.384975][ T1] mmgrab (____ptrval____) to 4 [ 37.389876][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.394932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.394932][ T1] Call Trace: [ 37.394932][ T1] dump_stack+0x172/0x1f0 [ 37.394932][ T1] __schedule+0xd03/0x1580 [ 37.394932][ T1] ? __sched_text_start+0x8/0x8 [ 37.394932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.394932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.394932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.394932][ T1] preempt_schedule+0x4b/0x60 [ 37.394932][ T1] ___preempt_schedule+0x16/0x18 [ 37.394932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.394932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.394932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.394932][ T1] ? kasan_check_read+0x11/0x20 [ 37.394932][ T1] wake_up_process+0x10/0x20 [ 37.394932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.394932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.394932][ T1] ? find_held_lock+0x35/0x130 [ 37.394932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.394932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.394932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.394932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.394932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.394932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.394932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.394932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.394932][ T1] alloc_workqueue+0x669/0xf00 [ 37.394932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.394932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.394932][ T1] ? cpumask_next+0x41/0x50 [ 37.394932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.394932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.394932][ T1] init_mm_internals+0x24/0x3c9 [ 37.394932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.394932][ T1] ? rest_init+0x37b/0x37b [ 37.394932][ T1] kernel_init+0x12/0x1c5 [ 37.394932][ T1] ret_from_fork+0x24/0x30 [ 37.394967][ T8] mmdrop (____ptrval____) before 4 [ 37.404970][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.412451][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.414932][ T8] Call Trace: [ 37.414932][ T8] dump_stack+0x172/0x1f0 [ 37.414932][ T8] finish_task_switch+0x239/0x790 [ 37.414932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.414932][ T8] __schedule+0x7d3/0x1580 [ 37.414932][ T8] ? __sched_text_start+0x8/0x8 [ 37.414932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.414932][ T8] schedule+0xa8/0x260 [ 37.414932][ T8] kthread+0x27a/0x420 [ 37.414932][ T8] ? process_one_work+0x1790/0x1790 [ 37.414932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.414932][ T8] ret_from_fork+0x24/0x30 [ 37.414975][ T8] mmgrab (____ptrval____) to 4 [ 37.419735][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.424932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.424932][ T8] Call Trace: [ 37.424932][ T8] dump_stack+0x172/0x1f0 [ 37.424932][ T8] __schedule+0xd03/0x1580 [ 37.424932][ T8] ? __sched_text_start+0x8/0x8 [ 37.424932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.424932][ T8] schedule+0xa8/0x260 [ 37.424932][ T8] kthread+0x27a/0x420 [ 37.424932][ T8] ? process_one_work+0x1790/0x1790 [ 37.424932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.424932][ T8] ret_from_fork+0x24/0x30 [ 37.424962][ T7] mmdrop (____ptrval____) before 4 [ 37.430082][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.434932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.434932][ T7] Workqueue: 0x0 (events) [ 37.434932][ T7] Call Trace: [ 37.434932][ T7] dump_stack+0x172/0x1f0 [ 37.434932][ T7] finish_task_switch+0x239/0x790 [ 37.434932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.434932][ T7] __schedule+0x7d3/0x1580 [ 37.434932][ T7] ? __sched_text_start+0x8/0x8 [ 37.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.434932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.434932][ T7] ? kthread_data+0x58/0xc0 [ 37.434932][ T7] schedule+0xa8/0x260 [ 37.434932][ T7] worker_thread+0x248/0xe40 [ 37.434932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.434932][ T7] kthread+0x354/0x420 [ 37.434932][ T7] ? process_one_work+0x1790/0x1790 [ 37.434932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.434932][ T7] ret_from_fork+0x24/0x30 [ 37.434977][ T7] mmgrab (____ptrval____) to 4 [ 37.439738][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.444932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.444932][ T7] Workqueue: 0x0 (events) [ 37.444932][ T7] Call Trace: [ 37.444932][ T7] dump_stack+0x172/0x1f0 [ 37.444932][ T7] __schedule+0xd03/0x1580 [ 37.444932][ T7] ? __sched_text_start+0x8/0x8 [ 37.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.444932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.444932][ T7] ? kthread_data+0x58/0xc0 [ 37.444932][ T7] schedule+0xa8/0x260 [ 37.444932][ T7] worker_thread+0x248/0xe40 [ 37.444932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.444932][ T7] kthread+0x354/0x420 [ 37.444932][ T7] ? process_one_work+0x1790/0x1790 [ 37.444932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.444932][ T7] ret_from_fork+0x24/0x30 [ 37.444969][ T2] mmdrop (____ptrval____) before 4 [ 37.450104][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.454932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.454932][ T2] Call Trace: [ 37.454932][ T2] dump_stack+0x172/0x1f0 [ 37.454932][ T2] finish_task_switch+0x239/0x790 [ 37.454932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.454932][ T2] __schedule+0x7d3/0x1580 [ 37.454932][ T2] ? __sched_text_start+0x8/0x8 [ 37.454932][ T2] schedule+0xa8/0x260 [ 37.454932][ T2] kthreadd+0x5cc/0x740 [ 37.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.454932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.454932][ T2] ret_from_fork+0x24/0x30 [ 37.454975][ T2] mmgrab (____ptrval____) to 4 [ 37.459872][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.464932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.464932][ T2] Call Trace: [ 37.464932][ T2] dump_stack+0x172/0x1f0 [ 37.464932][ T2] __schedule+0xd03/0x1580 [ 37.464932][ T2] ? __sched_text_start+0x8/0x8 [ 37.464932][ T2] schedule+0xa8/0x260 [ 37.464932][ T2] kthreadd+0x5cc/0x740 [ 37.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.464932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.464932][ T2] ret_from_fork+0x24/0x30 [ 37.464966][ T1] mmdrop (____ptrval____) before 4 [ 37.474968][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.482076][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.484932][ T1] Call Trace: [ 37.484932][ T1] dump_stack+0x172/0x1f0 [ 37.484932][ T1] finish_task_switch+0x239/0x790 [ 37.484932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.484932][ T1] __schedule+0x7d3/0x1580 [ 37.484932][ T1] ? __sched_text_start+0x8/0x8 [ 37.484932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.484932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.484932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.484932][ T1] preempt_schedule+0x4b/0x60 [ 37.484932][ T1] ___preempt_schedule+0x16/0x18 [ 37.484932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.484932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.484932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.484932][ T1] ? kasan_check_read+0x11/0x20 [ 37.484932][ T1] wake_up_process+0x10/0x20 [ 37.484932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.484932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.484932][ T1] ? find_held_lock+0x35/0x130 [ 37.484932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.484932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.484932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.484932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.484932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.484932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.484932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.484932][ T1] alloc_workqueue+0x669/0xf00 [ 37.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.484932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.484932][ T1] ? cpumask_next+0x41/0x50 [ 37.484932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.484932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.484932][ T1] init_mm_internals+0x24/0x3c9 [ 37.484932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.484932][ T1] ? rest_init+0x37b/0x37b [ 37.484932][ T1] kernel_init+0x12/0x1c5 [ 37.484932][ T1] ret_from_fork+0x24/0x30 [ 37.484978][ T1] mmgrab (____ptrval____) to 4 [ 37.489747][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.494932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.494932][ T1] Call Trace: [ 37.494932][ T1] dump_stack+0x172/0x1f0 [ 37.494932][ T1] __schedule+0xd03/0x1580 [ 37.494932][ T1] ? __sched_text_start+0x8/0x8 [ 37.494932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.494932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.494932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.494932][ T1] preempt_schedule+0x4b/0x60 [ 37.494932][ T1] ___preempt_schedule+0x16/0x18 [ 37.494932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.494932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.494932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.494932][ T1] ? kasan_check_read+0x11/0x20 [ 37.494932][ T1] wake_up_process+0x10/0x20 [ 37.494932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.494932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.494932][ T1] ? find_held_lock+0x35/0x130 [ 37.494932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.494932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.494932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.494932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.494932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.494932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.494932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.494932][ T1] alloc_workqueue+0x669/0xf00 [ 37.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.494932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.494932][ T1] ? cpumask_next+0x41/0x50 [ 37.494932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.494932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.494932][ T1] init_mm_internals+0x24/0x3c9 [ 37.494932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.494932][ T1] ? rest_init+0x37b/0x37b [ 37.494932][ T1] kernel_init+0x12/0x1c5 [ 37.494932][ T1] ret_from_fork+0x24/0x30 [ 37.494964][ T8] mmdrop (____ptrval____) before 4 [ 37.500087][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.504932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.504932][ T8] Call Trace: [ 37.504932][ T8] dump_stack+0x172/0x1f0 [ 37.504932][ T8] finish_task_switch+0x239/0x790 [ 37.504932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.504932][ T8] __schedule+0x7d3/0x1580 [ 37.504932][ T8] ? __sched_text_start+0x8/0x8 [ 37.504932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.504932][ T8] schedule+0xa8/0x260 [ 37.504932][ T8] kthread+0x27a/0x420 [ 37.504932][ T8] ? process_one_work+0x1790/0x1790 [ 37.504932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.504932][ T8] ret_from_fork+0x24/0x30 [ 37.504977][ T8] mmgrab (____ptrval____) to 4 [ 37.509987][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.514932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.514932][ T8] Call Trace: [ 37.514932][ T8] dump_stack+0x172/0x1f0 [ 37.514932][ T8] __schedule+0xd03/0x1580 [ 37.514932][ T8] ? __sched_text_start+0x8/0x8 [ 37.514932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.514932][ T8] schedule+0xa8/0x260 [ 37.514932][ T8] kthread+0x27a/0x420 [ 37.514932][ T8] ? process_one_work+0x1790/0x1790 [ 37.514932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.514932][ T8] ret_from_fork+0x24/0x30 [ 37.514962][ T7] mmdrop (____ptrval____) before 4 [ 37.524968][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.532380][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.534932][ T7] Workqueue: 0x0 (events) [ 37.534932][ T7] Call Trace: [ 37.534932][ T7] dump_stack+0x172/0x1f0 [ 37.534932][ T7] finish_task_switch+0x239/0x790 [ 37.534932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.534932][ T7] __schedule+0x7d3/0x1580 [ 37.534932][ T7] ? __sched_text_start+0x8/0x8 [ 37.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.534932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.534932][ T7] ? kthread_data+0x58/0xc0 [ 37.534932][ T7] schedule+0xa8/0x260 [ 37.534932][ T7] worker_thread+0x248/0xe40 [ 37.534932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.534932][ T7] kthread+0x354/0x420 [ 37.534932][ T7] ? process_one_work+0x1790/0x1790 [ 37.534932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.534932][ T7] ret_from_fork+0x24/0x30 [ 37.534977][ T7] mmgrab (____ptrval____) to 4 [ 37.539750][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.544932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.544932][ T7] Workqueue: 0x0 (events) [ 37.544932][ T7] Call Trace: [ 37.544932][ T7] dump_stack+0x172/0x1f0 [ 37.544932][ T7] __schedule+0xd03/0x1580 [ 37.544932][ T7] ? __sched_text_start+0x8/0x8 [ 37.544932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.544932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.544932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.544932][ T7] ? kthread_data+0x58/0xc0 [ 37.544932][ T7] schedule+0xa8/0x260 [ 37.544932][ T7] worker_thread+0x248/0xe40 [ 37.544932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.544932][ T7] kthread+0x354/0x420 [ 37.544932][ T7] ? process_one_work+0x1790/0x1790 [ 37.544932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.544932][ T7] ret_from_fork+0x24/0x30 [ 37.544964][ T2] mmdrop (____ptrval____) before 4 [ 37.554970][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.562018][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.564932][ T2] Call Trace: [ 37.564932][ T2] dump_stack+0x172/0x1f0 [ 37.564932][ T2] finish_task_switch+0x239/0x790 [ 37.564932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.564932][ T2] __schedule+0x7d3/0x1580 [ 37.564932][ T2] ? __sched_text_start+0x8/0x8 [ 37.564932][ T2] schedule+0xa8/0x260 [ 37.564932][ T2] kthreadd+0x5cc/0x740 [ 37.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.564932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.564932][ T2] ret_from_fork+0x24/0x30 [ 37.564975][ T2] mmgrab (____ptrval____) to 4 [ 37.569792][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.574932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.574932][ T2] Call Trace: [ 37.574932][ T2] dump_stack+0x172/0x1f0 [ 37.574932][ T2] __schedule+0xd03/0x1580 [ 37.574932][ T2] ? __sched_text_start+0x8/0x8 [ 37.574932][ T2] schedule+0xa8/0x260 [ 37.574932][ T2] kthreadd+0x5cc/0x740 [ 37.574932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.574932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.574932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.574932][ T2] ret_from_fork+0x24/0x30 [ 37.574963][ T1] mmdrop (____ptrval____) before 4 [ 37.584974][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.592233][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.594932][ T1] Call Trace: [ 37.594932][ T1] dump_stack+0x172/0x1f0 [ 37.594932][ T1] finish_task_switch+0x239/0x790 [ 37.594932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.594932][ T1] __schedule+0x7d3/0x1580 [ 37.594932][ T1] ? __sched_text_start+0x8/0x8 [ 37.594932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.594932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.594932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.594932][ T1] preempt_schedule+0x4b/0x60 [ 37.594932][ T1] ___preempt_schedule+0x16/0x18 [ 37.594932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.594932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.594932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.594932][ T1] ? kasan_check_read+0x11/0x20 [ 37.594932][ T1] wake_up_process+0x10/0x20 [ 37.594932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.594932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.594932][ T1] ? find_held_lock+0x35/0x130 [ 37.594932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.594932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.594932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.594932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.594932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.594932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.594932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.594932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.594932][ T1] alloc_workqueue+0x669/0xf00 [ 37.594932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.594932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.594932][ T1] ? cpumask_next+0x41/0x50 [ 37.594932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.594932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.594932][ T1] init_mm_internals+0x24/0x3c9 [ 37.594932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.594932][ T1] ? rest_init+0x37b/0x37b [ 37.594932][ T1] kernel_init+0x12/0x1c5 [ 37.594932][ T1] ret_from_fork+0x24/0x30 [ 37.595005][ T1] mmgrab (____ptrval____) to 4 [ 37.599768][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.604932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.604932][ T1] Call Trace: [ 37.604932][ T1] dump_stack+0x172/0x1f0 [ 37.604932][ T1] __schedule+0xd03/0x1580 [ 37.604932][ T1] ? __sched_text_start+0x8/0x8 [ 37.604932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.604932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.604932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.604932][ T1] preempt_schedule+0x4b/0x60 [ 37.604932][ T1] ___preempt_schedule+0x16/0x18 [ 37.604932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.604932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.604932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.604932][ T1] ? kasan_check_read+0x11/0x20 [ 37.604932][ T1] wake_up_process+0x10/0x20 [ 37.604932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.604932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.604932][ T1] ? find_held_lock+0x35/0x130 [ 37.604932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.604932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.604932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.604932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.604932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.604932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.604932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.604932][ T1] alloc_workqueue+0x669/0xf00 [ 37.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.604932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.604932][ T1] ? cpumask_next+0x41/0x50 [ 37.604932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.604932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.604932][ T1] init_mm_internals+0x24/0x3c9 [ 37.604932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.604932][ T1] ? rest_init+0x37b/0x37b [ 37.604932][ T1] kernel_init+0x12/0x1c5 [ 37.604932][ T1] ret_from_fork+0x24/0x30 [ 37.604966][ T8] mmdrop (____ptrval____) before 4 [ 37.614971][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.622390][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.624932][ T8] Call Trace: [ 37.624932][ T8] dump_stack+0x172/0x1f0 [ 37.624932][ T8] finish_task_switch+0x239/0x790 [ 37.624932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.624932][ T8] __schedule+0x7d3/0x1580 [ 37.624932][ T8] ? __sched_text_start+0x8/0x8 [ 37.624932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.624932][ T8] schedule+0xa8/0x260 [ 37.624932][ T8] kthread+0x27a/0x420 [ 37.624932][ T8] ? process_one_work+0x1790/0x1790 [ 37.624932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.624932][ T8] ret_from_fork+0x24/0x30 [ 37.624977][ T8] mmgrab (____ptrval____) to 4 [ 37.629750][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.634932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.634932][ T8] Call Trace: [ 37.634932][ T8] dump_stack+0x172/0x1f0 [ 37.634932][ T8] __schedule+0xd03/0x1580 [ 37.634932][ T8] ? __sched_text_start+0x8/0x8 [ 37.634932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.634932][ T8] schedule+0xa8/0x260 [ 37.634932][ T8] kthread+0x27a/0x420 [ 37.634932][ T8] ? process_one_work+0x1790/0x1790 [ 37.634932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.634932][ T8] ret_from_fork+0x24/0x30 [ 37.634966][ T7] mmdrop (____ptrval____) before 4 [ 37.644976][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.652410][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.654932][ T7] Workqueue: 0x0 (events) [ 37.654932][ T7] Call Trace: [ 37.654932][ T7] dump_stack+0x172/0x1f0 [ 37.654932][ T7] finish_task_switch+0x239/0x790 [ 37.654932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.654932][ T7] __schedule+0x7d3/0x1580 [ 37.654932][ T7] ? __sched_text_start+0x8/0x8 [ 37.654932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.654932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.654932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.654932][ T7] ? kthread_data+0x58/0xc0 [ 37.654932][ T7] schedule+0xa8/0x260 [ 37.654932][ T7] worker_thread+0x248/0xe40 [ 37.654932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.654932][ T7] kthread+0x354/0x420 [ 37.654932][ T7] ? process_one_work+0x1790/0x1790 [ 37.654932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.654932][ T7] ret_from_fork+0x24/0x30 [ 37.654977][ T7] mmgrab (____ptrval____) to 4 [ 37.659749][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.664932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.664932][ T7] Workqueue: 0x0 (events) [ 37.664932][ T7] Call Trace: [ 37.664932][ T7] dump_stack+0x172/0x1f0 [ 37.664932][ T7] __schedule+0xd03/0x1580 [ 37.664932][ T7] ? __sched_text_start+0x8/0x8 [ 37.664932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.664932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.664932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.664932][ T7] ? kthread_data+0x58/0xc0 [ 37.664932][ T7] schedule+0xa8/0x260 [ 37.664932][ T7] worker_thread+0x248/0xe40 [ 37.664932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.664932][ T7] kthread+0x354/0x420 [ 37.664932][ T7] ? process_one_work+0x1790/0x1790 [ 37.664932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.664932][ T7] ret_from_fork+0x24/0x30 [ 37.664964][ T2] mmdrop (____ptrval____) before 4 [ 37.674971][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.681998][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.684932][ T2] Call Trace: [ 37.684932][ T2] dump_stack+0x172/0x1f0 [ 37.684932][ T2] finish_task_switch+0x239/0x790 [ 37.684932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.684932][ T2] __schedule+0x7d3/0x1580 [ 37.684932][ T2] ? __sched_text_start+0x8/0x8 [ 37.684932][ T2] schedule+0xa8/0x260 [ 37.684932][ T2] kthreadd+0x5cc/0x740 [ 37.684932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.684932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.684932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.684932][ T2] ret_from_fork+0x24/0x30 [ 37.684977][ T2] mmgrab (____ptrval____) to 4 [ 37.689763][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.694932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.694932][ T2] Call Trace: [ 37.694932][ T2] dump_stack+0x172/0x1f0 [ 37.694932][ T2] __schedule+0xd03/0x1580 [ 37.694932][ T2] ? __sched_text_start+0x8/0x8 [ 37.694932][ T2] schedule+0xa8/0x260 [ 37.694932][ T2] kthreadd+0x5cc/0x740 [ 37.694932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.694932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.694932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.694932][ T2] ret_from_fork+0x24/0x30 [ 37.694963][ T1] mmdrop (____ptrval____) before 4 [ 37.700104][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.704932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.704932][ T1] Call Trace: [ 37.704932][ T1] dump_stack+0x172/0x1f0 [ 37.704932][ T1] finish_task_switch+0x239/0x790 [ 37.704932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.704932][ T1] __schedule+0x7d3/0x1580 [ 37.704932][ T1] ? __sched_text_start+0x8/0x8 [ 37.704932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.704932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.704932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.704932][ T1] preempt_schedule+0x4b/0x60 [ 37.704932][ T1] ___preempt_schedule+0x16/0x18 [ 37.704932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.704932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.704932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.704932][ T1] ? kasan_check_read+0x11/0x20 [ 37.704932][ T1] wake_up_process+0x10/0x20 [ 37.704932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.704932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.704932][ T1] ? find_held_lock+0x35/0x130 [ 37.704932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.704932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.704932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.704932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.704932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.704932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.704932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.704932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.704932][ T1] alloc_workqueue+0x669/0xf00 [ 37.704932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.704932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.704932][ T1] ? cpumask_next+0x41/0x50 [ 37.704932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.704932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.704932][ T1] init_mm_internals+0x24/0x3c9 [ 37.704932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.704932][ T1] ? rest_init+0x37b/0x37b [ 37.704932][ T1] kernel_init+0x12/0x1c5 [ 37.704932][ T1] ret_from_fork+0x24/0x30 [ 37.704984][ T1] mmgrab (____ptrval____) to 4 [ 37.709802][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.714932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.714932][ T1] Call Trace: [ 37.714932][ T1] dump_stack+0x172/0x1f0 [ 37.714932][ T1] __schedule+0xd03/0x1580 [ 37.714932][ T1] ? __sched_text_start+0x8/0x8 [ 37.714932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.714932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.714932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.714932][ T1] preempt_schedule+0x4b/0x60 [ 37.714932][ T1] ___preempt_schedule+0x16/0x18 [ 37.714932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.714932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.714932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.714932][ T1] ? kasan_check_read+0x11/0x20 [ 37.714932][ T1] wake_up_process+0x10/0x20 [ 37.714932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.714932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.714932][ T1] ? find_held_lock+0x35/0x130 [ 37.714932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.714932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.714932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.714932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.714932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.714932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.714932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.714932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.714932][ T1] alloc_workqueue+0x669/0xf00 [ 37.714932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.714932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.714932][ T1] ? cpumask_next+0x41/0x50 [ 37.714932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.714932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.714932][ T1] init_mm_internals+0x24/0x3c9 [ 37.714932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.714932][ T1] ? rest_init+0x37b/0x37b [ 37.714932][ T1] kernel_init+0x12/0x1c5 [ 37.714932][ T1] ret_from_fork+0x24/0x30 [ 37.714964][ T8] mmdrop (____ptrval____) before 4 [ 37.724982][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.732627][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.734932][ T8] Call Trace: [ 37.734932][ T8] dump_stack+0x172/0x1f0 [ 37.734932][ T8] finish_task_switch+0x239/0x790 [ 37.734932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.734932][ T8] __schedule+0x7d3/0x1580 [ 37.734932][ T8] ? __sched_text_start+0x8/0x8 [ 37.734932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.734932][ T8] schedule+0xa8/0x260 [ 37.734932][ T8] kthread+0x27a/0x420 [ 37.734932][ T8] ? process_one_work+0x1790/0x1790 [ 37.734932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.734932][ T8] ret_from_fork+0x24/0x30 [ 37.734980][ T8] mmgrab (____ptrval____) to 4 [ 37.739756][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.744932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.744932][ T8] Call Trace: [ 37.744932][ T8] dump_stack+0x172/0x1f0 [ 37.744932][ T8] __schedule+0xd03/0x1580 [ 37.744932][ T8] ? __sched_text_start+0x8/0x8 [ 37.744932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.744932][ T8] schedule+0xa8/0x260 [ 37.744932][ T8] kthread+0x27a/0x420 [ 37.744932][ T8] ? process_one_work+0x1790/0x1790 [ 37.744932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.744932][ T8] ret_from_fork+0x24/0x30 [ 37.744977][ T7] mmdrop (____ptrval____) before 4 [ 37.754974][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.762260][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.764932][ T7] Workqueue: 0x0 (events) [ 37.764932][ T7] Call Trace: [ 37.764932][ T7] dump_stack+0x172/0x1f0 [ 37.764932][ T7] finish_task_switch+0x239/0x790 [ 37.764932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.764932][ T7] __schedule+0x7d3/0x1580 [ 37.764932][ T7] ? __sched_text_start+0x8/0x8 [ 37.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.764932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.764932][ T7] ? kthread_data+0x58/0xc0 [ 37.764932][ T7] schedule+0xa8/0x260 [ 37.764932][ T7] worker_thread+0x248/0xe40 [ 37.764932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.764932][ T7] kthread+0x354/0x420 [ 37.764932][ T7] ? process_one_work+0x1790/0x1790 [ 37.764932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.764932][ T7] ret_from_fork+0x24/0x30 [ 37.764984][ T7] mmgrab (____ptrval____) to 4 [ 37.769871][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.774932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.774932][ T7] Workqueue: 0x0 (events) [ 37.774932][ T7] Call Trace: [ 37.774932][ T7] dump_stack+0x172/0x1f0 [ 37.774932][ T7] __schedule+0xd03/0x1580 [ 37.774932][ T7] ? __sched_text_start+0x8/0x8 [ 37.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.774932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.774932][ T7] ? kthread_data+0x58/0xc0 [ 37.774932][ T7] schedule+0xa8/0x260 [ 37.774932][ T7] worker_thread+0x248/0xe40 [ 37.774932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.774932][ T7] kthread+0x354/0x420 [ 37.774932][ T7] ? process_one_work+0x1790/0x1790 [ 37.774932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.774932][ T7] ret_from_fork+0x24/0x30 [ 37.774964][ T2] mmdrop (____ptrval____) before 4 [ 37.784967][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.792127][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.794932][ T2] Call Trace: [ 37.794932][ T2] dump_stack+0x172/0x1f0 [ 37.794932][ T2] finish_task_switch+0x239/0x790 [ 37.794932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.794932][ T2] __schedule+0x7d3/0x1580 [ 37.794932][ T2] ? __sched_text_start+0x8/0x8 [ 37.794932][ T2] schedule+0xa8/0x260 [ 37.794932][ T2] kthreadd+0x5cc/0x740 [ 37.794932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.794932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.794932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.794932][ T2] ret_from_fork+0x24/0x30 [ 37.794977][ T2] mmgrab (____ptrval____) to 4 [ 37.799753][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.804932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.804932][ T2] Call Trace: [ 37.804932][ T2] dump_stack+0x172/0x1f0 [ 37.804932][ T2] __schedule+0xd03/0x1580 [ 37.804932][ T2] ? __sched_text_start+0x8/0x8 [ 37.804932][ T2] schedule+0xa8/0x260 [ 37.804932][ T2] kthreadd+0x5cc/0x740 [ 37.804932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.804932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.804932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.804932][ T2] ret_from_fork+0x24/0x30 [ 37.804964][ T1] mmdrop (____ptrval____) before 4 [ 37.814978][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.822222][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.824932][ T1] Call Trace: [ 37.824932][ T1] dump_stack+0x172/0x1f0 [ 37.824932][ T1] finish_task_switch+0x239/0x790 [ 37.824932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.824932][ T1] __schedule+0x7d3/0x1580 [ 37.824932][ T1] ? __sched_text_start+0x8/0x8 [ 37.824932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.824932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.824932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.824932][ T1] preempt_schedule+0x4b/0x60 [ 37.824932][ T1] ___preempt_schedule+0x16/0x18 [ 37.824932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.824932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.824932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.824932][ T1] ? kasan_check_read+0x11/0x20 [ 37.824932][ T1] wake_up_process+0x10/0x20 [ 37.824932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.824932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.824932][ T1] ? find_held_lock+0x35/0x130 [ 37.824932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.824932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.824932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.824932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.824932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.824932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.824932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.824932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.824932][ T1] alloc_workqueue+0x669/0xf00 [ 37.824932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.824932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.824932][ T1] ? cpumask_next+0x41/0x50 [ 37.824932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.824932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.824932][ T1] init_mm_internals+0x24/0x3c9 [ 37.824932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.824932][ T1] ? rest_init+0x37b/0x37b [ 37.824932][ T1] kernel_init+0x12/0x1c5 [ 37.824932][ T1] ret_from_fork+0x24/0x30 [ 37.824977][ T1] mmgrab (____ptrval____) to 4 [ 37.829741][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.834932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.834932][ T1] Call Trace: [ 37.834932][ T1] dump_stack+0x172/0x1f0 [ 37.834932][ T1] __schedule+0xd03/0x1580 [ 37.834932][ T1] ? __sched_text_start+0x8/0x8 [ 37.834932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.834932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.834932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.834932][ T1] preempt_schedule+0x4b/0x60 [ 37.834932][ T1] ___preempt_schedule+0x16/0x18 [ 37.834932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.834932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.834932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.834932][ T1] ? kasan_check_read+0x11/0x20 [ 37.834932][ T1] wake_up_process+0x10/0x20 [ 37.834932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.834932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.834932][ T1] ? find_held_lock+0x35/0x130 [ 37.834932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.834932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.834932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.834932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.834932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.834932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.834932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.834932][ T1] alloc_workqueue+0x669/0xf00 [ 37.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.834932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.834932][ T1] ? cpumask_next+0x41/0x50 [ 37.834932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.834932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.834932][ T1] init_mm_internals+0x24/0x3c9 [ 37.834932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.834932][ T1] ? rest_init+0x37b/0x37b [ 37.834932][ T1] kernel_init+0x12/0x1c5 [ 37.834932][ T1] ret_from_fork+0x24/0x30 [ 37.834962][ T8] mmdrop (____ptrval____) before 4 [ 37.844966][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.852342][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.854932][ T8] Call Trace: [ 37.854932][ T8] dump_stack+0x172/0x1f0 [ 37.854932][ T8] finish_task_switch+0x239/0x790 [ 37.854932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.854932][ T8] __schedule+0x7d3/0x1580 [ 37.854932][ T8] ? __sched_text_start+0x8/0x8 [ 37.854932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.854932][ T8] schedule+0xa8/0x260 [ 37.854932][ T8] kthread+0x27a/0x420 [ 37.854932][ T8] ? process_one_work+0x1790/0x1790 [ 37.854932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.854932][ T8] ret_from_fork+0x24/0x30 [ 37.854974][ T8] mmgrab (____ptrval____) to 4 [ 37.859739][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.864932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.864932][ T8] Call Trace: [ 37.864932][ T8] dump_stack+0x172/0x1f0 [ 37.864932][ T8] __schedule+0xd03/0x1580 [ 37.864932][ T8] ? __sched_text_start+0x8/0x8 [ 37.864932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.864932][ T8] schedule+0xa8/0x260 [ 37.864932][ T8] kthread+0x27a/0x420 [ 37.864932][ T8] ? process_one_work+0x1790/0x1790 [ 37.864932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.864932][ T8] ret_from_fork+0x24/0x30 [ 37.864971][ T7] mmdrop (____ptrval____) before 4 [ 37.874967][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.882260][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.884932][ T7] Workqueue: 0x0 (events) [ 37.884932][ T7] Call Trace: [ 37.884932][ T7] dump_stack+0x172/0x1f0 [ 37.884932][ T7] finish_task_switch+0x239/0x790 [ 37.884932][ T7] ? dump_stack+0x1de/0x1f0 [ 37.884932][ T7] __schedule+0x7d3/0x1580 [ 37.884932][ T7] ? __sched_text_start+0x8/0x8 [ 37.884932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.884932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.884932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.884932][ T7] ? kthread_data+0x58/0xc0 [ 37.884932][ T7] schedule+0xa8/0x260 [ 37.884932][ T7] worker_thread+0x248/0xe40 [ 37.884932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.884932][ T7] kthread+0x354/0x420 [ 37.884932][ T7] ? process_one_work+0x1790/0x1790 [ 37.884932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.884932][ T7] ret_from_fork+0x24/0x30 [ 37.884975][ T7] mmgrab (____ptrval____) to 4 [ 37.889739][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 37.894932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.894932][ T7] Workqueue: 0x0 (events) [ 37.894932][ T7] Call Trace: [ 37.894932][ T7] dump_stack+0x172/0x1f0 [ 37.894932][ T7] __schedule+0xd03/0x1580 [ 37.894932][ T7] ? __sched_text_start+0x8/0x8 [ 37.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.894932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 37.894932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.894932][ T7] ? kthread_data+0x58/0xc0 [ 37.894932][ T7] schedule+0xa8/0x260 [ 37.894932][ T7] worker_thread+0x248/0xe40 [ 37.894932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 37.894932][ T7] kthread+0x354/0x420 [ 37.894932][ T7] ? process_one_work+0x1790/0x1790 [ 37.894932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.894932][ T7] ret_from_fork+0x24/0x30 [ 37.894963][ T2] mmdrop (____ptrval____) before 4 [ 37.904970][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.912142][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.914932][ T2] Call Trace: [ 37.914932][ T2] dump_stack+0x172/0x1f0 [ 37.914932][ T2] finish_task_switch+0x239/0x790 [ 37.914932][ T2] ? dump_stack+0x1de/0x1f0 [ 37.914932][ T2] __schedule+0x7d3/0x1580 [ 37.914932][ T2] ? __sched_text_start+0x8/0x8 [ 37.914932][ T2] schedule+0xa8/0x260 [ 37.914932][ T2] kthreadd+0x5cc/0x740 [ 37.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.914932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.914932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.914932][ T2] ret_from_fork+0x24/0x30 [ 37.914978][ T2] mmgrab (____ptrval____) to 4 [ 37.919751][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 37.924932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.924932][ T2] Call Trace: [ 37.924932][ T2] dump_stack+0x172/0x1f0 [ 37.924932][ T2] __schedule+0xd03/0x1580 [ 37.924932][ T2] ? __sched_text_start+0x8/0x8 [ 37.924932][ T2] schedule+0xa8/0x260 [ 37.924932][ T2] kthreadd+0x5cc/0x740 [ 37.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.924932][ T2] ? calculate_sigpending+0x87/0xa0 [ 37.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 37.924932][ T2] ret_from_fork+0x24/0x30 [ 37.924974][ T1] mmdrop (____ptrval____) before 4 [ 37.930258][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.934932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.934932][ T1] Call Trace: [ 37.934932][ T1] dump_stack+0x172/0x1f0 [ 37.934932][ T1] finish_task_switch+0x239/0x790 [ 37.934932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.934932][ T1] __schedule+0x7d3/0x1580 [ 37.934932][ T1] ? __sched_text_start+0x8/0x8 [ 37.934932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.934932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.934932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.934932][ T1] preempt_schedule+0x4b/0x60 [ 37.934932][ T1] ___preempt_schedule+0x16/0x18 [ 37.934932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.934932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.934932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.934932][ T1] ? kasan_check_read+0x11/0x20 [ 37.934932][ T1] wake_up_process+0x10/0x20 [ 37.934932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.934932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.934932][ T1] ? find_held_lock+0x35/0x130 [ 37.934932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.934932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.934932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.934932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.934932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.934932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.934932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.934932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.934932][ T1] alloc_workqueue+0x669/0xf00 [ 37.934932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.934932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.934932][ T1] ? cpumask_next+0x41/0x50 [ 37.934932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.934932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.934932][ T1] init_mm_internals+0x24/0x3c9 [ 37.934932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.934932][ T1] ? rest_init+0x37b/0x37b [ 37.934932][ T1] kernel_init+0x12/0x1c5 [ 37.934932][ T1] ret_from_fork+0x24/0x30 [ 37.934975][ T1] mmgrab (____ptrval____) to 4 [ 37.939734][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.944932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.944932][ T1] Call Trace: [ 37.944932][ T1] dump_stack+0x172/0x1f0 [ 37.944932][ T1] __schedule+0xd03/0x1580 [ 37.944932][ T1] ? __sched_text_start+0x8/0x8 [ 37.944932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.944932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.944932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.944932][ T1] preempt_schedule+0x4b/0x60 [ 37.944932][ T1] ___preempt_schedule+0x16/0x18 [ 37.944932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.944932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.944932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.944932][ T1] ? kasan_check_read+0x11/0x20 [ 37.944932][ T1] wake_up_process+0x10/0x20 [ 37.944932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.944932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.944932][ T1] ? find_held_lock+0x35/0x130 [ 37.944932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.944932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.944932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.944932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.944932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.944932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.944932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.944932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.944932][ T1] alloc_workqueue+0x669/0xf00 [ 37.944932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.944932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.944932][ T1] ? cpumask_next+0x41/0x50 [ 37.944932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.944932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.944932][ T1] init_mm_internals+0x24/0x3c9 [ 37.944932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.944932][ T1] ? rest_init+0x37b/0x37b [ 37.944932][ T1] kernel_init+0x12/0x1c5 [ 37.944932][ T1] ret_from_fork+0x24/0x30 [ 37.944962][ T8] mmdrop (____ptrval____) before 4 [ 37.954968][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.962334][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.964932][ T8] Call Trace: [ 37.964932][ T8] dump_stack+0x172/0x1f0 [ 37.964932][ T8] finish_task_switch+0x239/0x790 [ 37.964932][ T8] ? dump_stack+0x1de/0x1f0 [ 37.964932][ T8] __schedule+0x7d3/0x1580 [ 37.964932][ T8] ? __sched_text_start+0x8/0x8 [ 37.964932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.964932][ T8] schedule+0xa8/0x260 [ 37.964932][ T8] kthread+0x27a/0x420 [ 37.964932][ T8] ? process_one_work+0x1790/0x1790 [ 37.964932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.964932][ T8] ret_from_fork+0x24/0x30 [ 37.964977][ T8] mmgrab (____ptrval____) to 4 [ 37.969847][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 37.974932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.974932][ T8] Call Trace: [ 37.974932][ T8] dump_stack+0x172/0x1f0 [ 37.974932][ T8] __schedule+0xd03/0x1580 [ 37.974932][ T8] ? __sched_text_start+0x8/0x8 [ 37.974932][ T8] ? ___preempt_schedule+0x16/0x18 [ 37.974932][ T8] schedule+0xa8/0x260 [ 37.974932][ T8] kthread+0x27a/0x420 [ 37.974932][ T8] ? process_one_work+0x1790/0x1790 [ 37.974932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 37.974932][ T8] ret_from_fork+0x24/0x30 [ 37.974962][ T1] mmdrop (____ptrval____) before 4 [ 37.984971][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 37.992081][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.994932][ T1] Call Trace: [ 37.994932][ T1] dump_stack+0x172/0x1f0 [ 37.994932][ T1] finish_task_switch+0x239/0x790 [ 37.994932][ T1] ? dump_stack+0x1de/0x1f0 [ 37.994932][ T1] __schedule+0x7d3/0x1580 [ 37.994932][ T1] ? __sched_text_start+0x8/0x8 [ 37.994932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 37.994932][ T1] ? preempt_schedule+0x4b/0x60 [ 37.994932][ T1] preempt_schedule_common+0x4f/0xe0 [ 37.994932][ T1] preempt_schedule+0x4b/0x60 [ 37.994932][ T1] ___preempt_schedule+0x16/0x18 [ 37.994932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 37.994932][ T1] try_to_wake_up+0xc8/0x13f0 [ 37.994932][ T1] ? migrate_swap_stop+0x920/0x920 [ 37.994932][ T1] ? kasan_check_read+0x11/0x20 [ 37.994932][ T1] wake_up_process+0x10/0x20 [ 37.994932][ T1] __kthread_create_on_node+0x281/0x460 [ 37.994932][ T1] ? kthread_parkme+0xb0/0xb0 [ 37.994932][ T1] ? find_held_lock+0x35/0x130 [ 37.994932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.994932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 37.994932][ T1] kthread_create_on_node+0xbb/0xf0 [ 37.994932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 37.994932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 37.994932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 37.994932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.994932][ T1] init_rescuer.part.0+0x7d/0x190 [ 37.994932][ T1] alloc_workqueue+0x669/0xf00 [ 37.994932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 37.994932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 37.994932][ T1] ? cpumask_next+0x41/0x50 [ 37.994932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.994932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 37.994932][ T1] init_mm_internals+0x24/0x3c9 [ 37.994932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 37.994932][ T1] ? rest_init+0x37b/0x37b [ 37.994932][ T1] kernel_init+0x12/0x1c5 [ 37.994932][ T1] ret_from_fork+0x24/0x30 [ 37.994975][ T1] mmgrab (____ptrval____) to 4 [ 37.999744][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.004932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.004932][ T1] Call Trace: [ 38.004932][ T1] dump_stack+0x172/0x1f0 [ 38.004932][ T1] __schedule+0xd03/0x1580 [ 38.004932][ T1] ? __sched_text_start+0x8/0x8 [ 38.004932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.004932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.004932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.004932][ T1] preempt_schedule+0x4b/0x60 [ 38.004932][ T1] ___preempt_schedule+0x16/0x18 [ 38.004932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.004932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.004932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.004932][ T1] ? kasan_check_read+0x11/0x20 [ 38.004932][ T1] wake_up_process+0x10/0x20 [ 38.004932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.004932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.004932][ T1] ? find_held_lock+0x35/0x130 [ 38.004932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.004932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.004932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.004932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.004932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.004932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.004932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.004932][ T1] alloc_workqueue+0x669/0xf00 [ 38.004932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.004932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.004932][ T1] ? cpumask_next+0x41/0x50 [ 38.004932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.004932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.004932][ T1] init_mm_internals+0x24/0x3c9 [ 38.004932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.004932][ T1] ? rest_init+0x37b/0x37b [ 38.004932][ T1] kernel_init+0x12/0x1c5 [ 38.004932][ T1] ret_from_fork+0x24/0x30 [ 38.004963][ T7] mmdrop (____ptrval____) before 4 [ 38.014970][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.022257][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.024932][ T7] Workqueue: 0x0 (events) [ 38.024932][ T7] Call Trace: [ 38.024932][ T7] dump_stack+0x172/0x1f0 [ 38.024932][ T7] finish_task_switch+0x239/0x790 [ 38.024932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.024932][ T7] __schedule+0x7d3/0x1580 [ 38.024932][ T7] ? __sched_text_start+0x8/0x8 [ 38.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.024932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.024932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.024932][ T7] ? kthread_data+0x58/0xc0 [ 38.024932][ T7] schedule+0xa8/0x260 [ 38.024932][ T7] worker_thread+0x248/0xe40 [ 38.024932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.024932][ T7] kthread+0x354/0x420 [ 38.024932][ T7] ? process_one_work+0x1790/0x1790 [ 38.024932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.024932][ T7] ret_from_fork+0x24/0x30 [ 38.024974][ T7] mmgrab (____ptrval____) to 4 [ 38.029740][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.034932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.034932][ T7] Workqueue: 0x0 (events) [ 38.034932][ T7] Call Trace: [ 38.034932][ T7] dump_stack+0x172/0x1f0 [ 38.034932][ T7] __schedule+0xd03/0x1580 [ 38.034932][ T7] ? __sched_text_start+0x8/0x8 [ 38.034932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.034932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.034932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.034932][ T7] ? kthread_data+0x58/0xc0 [ 38.034932][ T7] schedule+0xa8/0x260 [ 38.034932][ T7] worker_thread+0x248/0xe40 [ 38.034932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.034932][ T7] kthread+0x354/0x420 [ 38.034932][ T7] ? process_one_work+0x1790/0x1790 [ 38.034932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.034932][ T7] ret_from_fork+0x24/0x30 [ 38.034962][ T2] mmdrop (____ptrval____) before 4 [ 38.044967][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.052072][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.054932][ T2] Call Trace: [ 38.054932][ T2] dump_stack+0x172/0x1f0 [ 38.054932][ T2] finish_task_switch+0x239/0x790 [ 38.054932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.054932][ T2] __schedule+0x7d3/0x1580 [ 38.054932][ T2] ? __sched_text_start+0x8/0x8 [ 38.054932][ T2] schedule+0xa8/0x260 [ 38.054932][ T2] kthreadd+0x5cc/0x740 [ 38.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.054932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.054932][ T2] ret_from_fork+0x24/0x30 [ 38.054977][ T2] mmgrab (____ptrval____) to 4 [ 38.059743][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.064932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.064932][ T2] Call Trace: [ 38.064932][ T2] dump_stack+0x172/0x1f0 [ 38.064932][ T2] __schedule+0xd03/0x1580 [ 38.064932][ T2] ? __sched_text_start+0x8/0x8 [ 38.064932][ T2] schedule+0xa8/0x260 [ 38.064932][ T2] kthreadd+0x5cc/0x740 [ 38.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.064932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.064932][ T2] ret_from_fork+0x24/0x30 [ 38.064963][ T8] mmdrop (____ptrval____) before 4 [ 38.074971][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.082340][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.084932][ T8] Call Trace: [ 38.084932][ T8] dump_stack+0x172/0x1f0 [ 38.084932][ T8] finish_task_switch+0x239/0x790 [ 38.084932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.084932][ T8] __schedule+0x7d3/0x1580 [ 38.084932][ T8] ? __sched_text_start+0x8/0x8 [ 38.084932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.084932][ T8] schedule+0xa8/0x260 [ 38.084932][ T8] kthread+0x27a/0x420 [ 38.084932][ T8] ? process_one_work+0x1790/0x1790 [ 38.084932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.084932][ T8] ret_from_fork+0x24/0x30 [ 38.084976][ T8] mmgrab (____ptrval____) to 4 [ 38.089759][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.094932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.094932][ T8] Call Trace: [ 38.094932][ T8] dump_stack+0x172/0x1f0 [ 38.094932][ T8] __schedule+0xd03/0x1580 [ 38.094932][ T8] ? __sched_text_start+0x8/0x8 [ 38.094932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.094932][ T8] schedule+0xa8/0x260 [ 38.094932][ T8] kthread+0x27a/0x420 [ 38.094932][ T8] ? process_one_work+0x1790/0x1790 [ 38.094932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.094932][ T8] ret_from_fork+0x24/0x30 [ 38.094961][ T1] mmdrop (____ptrval____) before 4 [ 38.100078][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.104932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.104932][ T1] Call Trace: [ 38.104932][ T1] dump_stack+0x172/0x1f0 [ 38.104932][ T1] finish_task_switch+0x239/0x790 [ 38.104932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.104932][ T1] __schedule+0x7d3/0x1580 [ 38.104932][ T1] ? __sched_text_start+0x8/0x8 [ 38.104932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.104932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.104932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.104932][ T1] preempt_schedule+0x4b/0x60 [ 38.104932][ T1] ___preempt_schedule+0x16/0x18 [ 38.104932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.104932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.104932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.104932][ T1] ? kasan_check_read+0x11/0x20 [ 38.104932][ T1] wake_up_process+0x10/0x20 [ 38.104932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.104932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.104932][ T1] ? find_held_lock+0x35/0x130 [ 38.104932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.104932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.104932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.104932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.104932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.104932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.104932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.104932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.104932][ T1] alloc_workqueue+0x669/0xf00 [ 38.104932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.104932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.104932][ T1] ? cpumask_next+0x41/0x50 [ 38.104932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.104932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.104932][ T1] init_mm_internals+0x24/0x3c9 [ 38.104932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.104932][ T1] ? rest_init+0x37b/0x37b [ 38.104932][ T1] kernel_init+0x12/0x1c5 [ 38.104932][ T1] ret_from_fork+0x24/0x30 [ 38.104973][ T1] mmgrab (____ptrval____) to 4 [ 38.109727][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.114932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.114932][ T1] Call Trace: [ 38.114932][ T1] dump_stack+0x172/0x1f0 [ 38.114932][ T1] __schedule+0xd03/0x1580 [ 38.114932][ T1] ? __sched_text_start+0x8/0x8 [ 38.114932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.114932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.114932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.114932][ T1] preempt_schedule+0x4b/0x60 [ 38.114932][ T1] ___preempt_schedule+0x16/0x18 [ 38.114932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.114932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.114932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.114932][ T1] ? kasan_check_read+0x11/0x20 [ 38.114932][ T1] wake_up_process+0x10/0x20 [ 38.114932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.114932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.114932][ T1] ? find_held_lock+0x35/0x130 [ 38.114932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.114932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.114932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.114932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.114932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.114932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.114932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.114932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.114932][ T1] alloc_workqueue+0x669/0xf00 [ 38.114932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.114932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.114932][ T1] ? cpumask_next+0x41/0x50 [ 38.114932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.114932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.114932][ T1] init_mm_internals+0x24/0x3c9 [ 38.114932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.114932][ T1] ? rest_init+0x37b/0x37b [ 38.114932][ T1] kernel_init+0x12/0x1c5 [ 38.114932][ T1] ret_from_fork+0x24/0x30 [ 38.114961][ T7] mmdrop (____ptrval____) before 4 [ 38.124970][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.132253][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.134932][ T7] Workqueue: 0x0 (events) [ 38.134932][ T7] Call Trace: [ 38.134932][ T7] dump_stack+0x172/0x1f0 [ 38.134932][ T7] finish_task_switch+0x239/0x790 [ 38.134932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.134932][ T7] __schedule+0x7d3/0x1580 [ 38.134932][ T7] ? __sched_text_start+0x8/0x8 [ 38.134932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.134932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.134932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.134932][ T7] ? kthread_data+0x58/0xc0 [ 38.134932][ T7] schedule+0xa8/0x260 [ 38.134932][ T7] worker_thread+0x248/0xe40 [ 38.134932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.134932][ T7] kthread+0x354/0x420 [ 38.134932][ T7] ? process_one_work+0x1790/0x1790 [ 38.134932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.134932][ T7] ret_from_fork+0x24/0x30 [ 38.134976][ T7] mmgrab (____ptrval____) to 4 [ 38.139735][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.144932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.144932][ T7] Workqueue: 0x0 (events) [ 38.144932][ T7] Call Trace: [ 38.144932][ T7] dump_stack+0x172/0x1f0 [ 38.144932][ T7] __schedule+0xd03/0x1580 [ 38.144932][ T7] ? __sched_text_start+0x8/0x8 [ 38.144932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.144932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.144932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.144932][ T7] ? kthread_data+0x58/0xc0 [ 38.144932][ T7] schedule+0xa8/0x260 [ 38.144932][ T7] worker_thread+0x248/0xe40 [ 38.144932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.144932][ T7] kthread+0x354/0x420 [ 38.144932][ T7] ? process_one_work+0x1790/0x1790 [ 38.144932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.144932][ T7] ret_from_fork+0x24/0x30 [ 38.144962][ T2] mmdrop (____ptrval____) before 4 [ 38.154968][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.161993][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.164932][ T2] Call Trace: [ 38.164932][ T2] dump_stack+0x172/0x1f0 [ 38.164932][ T2] finish_task_switch+0x239/0x790 [ 38.164932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.164932][ T2] __schedule+0x7d3/0x1580 [ 38.164932][ T2] ? __sched_text_start+0x8/0x8 [ 38.164932][ T2] schedule+0xa8/0x260 [ 38.164932][ T2] kthreadd+0x5cc/0x740 [ 38.164932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.164932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.164932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.164932][ T2] ret_from_fork+0x24/0x30 [ 38.164976][ T2] mmgrab (____ptrval____) to 4 [ 38.169741][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.174932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.174932][ T2] Call Trace: [ 38.174932][ T2] dump_stack+0x172/0x1f0 [ 38.174932][ T2] __schedule+0xd03/0x1580 [ 38.174932][ T2] ? __sched_text_start+0x8/0x8 [ 38.174932][ T2] schedule+0xa8/0x260 [ 38.174932][ T2] kthreadd+0x5cc/0x740 [ 38.174932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.174932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.174932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.174932][ T2] ret_from_fork+0x24/0x30 [ 38.174961][ T1] mmdrop (____ptrval____) before 4 [ 38.184978][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.192087][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.194932][ T1] Call Trace: [ 38.194932][ T1] dump_stack+0x172/0x1f0 [ 38.194932][ T1] finish_task_switch+0x239/0x790 [ 38.194932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.194932][ T1] __schedule+0x7d3/0x1580 [ 38.194932][ T1] ? __sched_text_start+0x8/0x8 [ 38.194932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.194932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.194932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.194932][ T1] preempt_schedule+0x4b/0x60 [ 38.194932][ T1] ___preempt_schedule+0x16/0x18 [ 38.194932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.194932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.194932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.194932][ T1] ? kasan_check_read+0x11/0x20 [ 38.194932][ T1] wake_up_process+0x10/0x20 [ 38.194932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.194932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.194932][ T1] ? find_held_lock+0x35/0x130 [ 38.194932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.194932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.194932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.194932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.194932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.194932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.194932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.194932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.194932][ T1] alloc_workqueue+0x669/0xf00 [ 38.194932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.194932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.194932][ T1] ? cpumask_next+0x41/0x50 [ 38.194932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.194932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.194932][ T1] init_mm_internals+0x24/0x3c9 [ 38.194932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.194932][ T1] ? rest_init+0x37b/0x37b [ 38.194932][ T1] kernel_init+0x12/0x1c5 [ 38.194932][ T1] ret_from_fork+0x24/0x30 [ 38.194975][ T1] mmgrab (____ptrval____) to 4 [ 38.199985][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.204932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.204932][ T1] Call Trace: [ 38.204932][ T1] dump_stack+0x172/0x1f0 [ 38.204932][ T1] __schedule+0xd03/0x1580 [ 38.204932][ T1] ? __sched_text_start+0x8/0x8 [ 38.204932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.204932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.204932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.204932][ T1] preempt_schedule+0x4b/0x60 [ 38.204932][ T1] ___preempt_schedule+0x16/0x18 [ 38.204932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.204932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.204932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.204932][ T1] ? kasan_check_read+0x11/0x20 [ 38.204932][ T1] wake_up_process+0x10/0x20 [ 38.204932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.204932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.204932][ T1] ? find_held_lock+0x35/0x130 [ 38.204932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.204932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.204932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.204932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.204932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.204932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.204932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.204932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.204932][ T1] alloc_workqueue+0x669/0xf00 [ 38.204932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.204932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.204932][ T1] ? cpumask_next+0x41/0x50 [ 38.204932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.204932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.204932][ T1] init_mm_internals+0x24/0x3c9 [ 38.204932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.204932][ T1] ? rest_init+0x37b/0x37b [ 38.204932][ T1] kernel_init+0x12/0x1c5 [ 38.204932][ T1] ret_from_fork+0x24/0x30 [ 38.204964][ T8] mmdrop (____ptrval____) before 4 [ 38.214964][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.222332][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.224932][ T8] Call Trace: [ 38.224932][ T8] dump_stack+0x172/0x1f0 [ 38.224932][ T8] finish_task_switch+0x239/0x790 [ 38.224932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.224932][ T8] __schedule+0x7d3/0x1580 [ 38.224932][ T8] ? __sched_text_start+0x8/0x8 [ 38.224932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.224932][ T8] schedule+0xa8/0x260 [ 38.224932][ T8] kthread+0x27a/0x420 [ 38.224932][ T8] ? process_one_work+0x1790/0x1790 [ 38.224932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.224932][ T8] ret_from_fork+0x24/0x30 [ 38.224976][ T8] mmgrab (____ptrval____) to 4 [ 38.229744][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.234932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.234932][ T8] Call Trace: [ 38.234932][ T8] dump_stack+0x172/0x1f0 [ 38.234932][ T8] __schedule+0xd03/0x1580 [ 38.234932][ T8] ? __sched_text_start+0x8/0x8 [ 38.234932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.234932][ T8] schedule+0xa8/0x260 [ 38.234932][ T8] kthread+0x27a/0x420 [ 38.234932][ T8] ? process_one_work+0x1790/0x1790 [ 38.234932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.234932][ T8] ret_from_fork+0x24/0x30 [ 38.234963][ T7] mmdrop (____ptrval____) before 4 [ 38.240079][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.244932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.244932][ T7] Workqueue: 0x0 (events) [ 38.244932][ T7] Call Trace: [ 38.244932][ T7] dump_stack+0x172/0x1f0 [ 38.244932][ T7] finish_task_switch+0x239/0x790 [ 38.244932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.244932][ T7] __schedule+0x7d3/0x1580 [ 38.244932][ T7] ? __sched_text_start+0x8/0x8 [ 38.244932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.244932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.244932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.244932][ T7] ? kthread_data+0x58/0xc0 [ 38.244932][ T7] schedule+0xa8/0x260 [ 38.244932][ T7] worker_thread+0x248/0xe40 [ 38.244932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.244932][ T7] kthread+0x354/0x420 [ 38.244932][ T7] ? process_one_work+0x1790/0x1790 [ 38.244932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.244932][ T7] ret_from_fork+0x24/0x30 [ 38.244987][ T7] mmgrab (____ptrval____) to 4 [ 38.249741][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.254932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.254932][ T7] Workqueue: 0x0 (events) [ 38.254932][ T7] Call Trace: [ 38.254932][ T7] dump_stack+0x172/0x1f0 [ 38.254932][ T7] __schedule+0xd03/0x1580 [ 38.254932][ T7] ? __sched_text_start+0x8/0x8 [ 38.254932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.254932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.254932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.254932][ T7] ? kthread_data+0x58/0xc0 [ 38.254932][ T7] schedule+0xa8/0x260 [ 38.254932][ T7] worker_thread+0x248/0xe40 [ 38.254932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.254932][ T7] kthread+0x354/0x420 [ 38.254932][ T7] ? process_one_work+0x1790/0x1790 [ 38.254932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.254932][ T7] ret_from_fork+0x24/0x30 [ 38.254961][ T2] mmdrop (____ptrval____) before 4 [ 38.260084][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.264932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.264932][ T2] Call Trace: [ 38.264932][ T2] dump_stack+0x172/0x1f0 [ 38.264932][ T2] finish_task_switch+0x239/0x790 [ 38.264932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.264932][ T2] __schedule+0x7d3/0x1580 [ 38.264932][ T2] ? __sched_text_start+0x8/0x8 [ 38.264932][ T2] schedule+0xa8/0x260 [ 38.264932][ T2] kthreadd+0x5cc/0x740 [ 38.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.264932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.264932][ T2] ret_from_fork+0x24/0x30 [ 38.264975][ T2] mmgrab (____ptrval____) to 4 [ 38.274932][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.274932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.274932][ T2] Call Trace: [ 38.274932][ T2] dump_stack+0x172/0x1f0 [ 38.274932][ T2] __schedule+0xd03/0x1580 [ 38.274932][ T2] ? __sched_text_start+0x8/0x8 [ 38.274932][ T2] schedule+0xa8/0x260 [ 38.274932][ T2] kthreadd+0x5cc/0x740 [ 38.274932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.274932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.274932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.274932][ T2] ret_from_fork+0x24/0x30 [ 38.274961][ T1] mmdrop (____ptrval____) before 4 [ 38.280201][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.284932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.284932][ T1] Call Trace: [ 38.284932][ T1] dump_stack+0x172/0x1f0 [ 38.284932][ T1] finish_task_switch+0x239/0x790 [ 38.284932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.284932][ T1] __schedule+0x7d3/0x1580 [ 38.284932][ T1] ? __sched_text_start+0x8/0x8 [ 38.284932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.284932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.284932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.284932][ T1] preempt_schedule+0x4b/0x60 [ 38.284932][ T1] ___preempt_schedule+0x16/0x18 [ 38.284932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.284932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.284932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.284932][ T1] ? kasan_check_read+0x11/0x20 [ 38.284932][ T1] wake_up_process+0x10/0x20 [ 38.284932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.284932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.284932][ T1] ? find_held_lock+0x35/0x130 [ 38.284932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.284932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.284932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.284932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.284932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.284932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.284932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.284932][ T1] alloc_workqueue+0x669/0xf00 [ 38.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.284932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.284932][ T1] ? cpumask_next+0x41/0x50 [ 38.284932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.284932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.284932][ T1] init_mm_internals+0x24/0x3c9 [ 38.284932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.284932][ T1] ? rest_init+0x37b/0x37b [ 38.284932][ T1] kernel_init+0x12/0x1c5 [ 38.284932][ T1] ret_from_fork+0x24/0x30 [ 38.284974][ T1] mmgrab (____ptrval____) to 4 [ 38.289838][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.294932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.294932][ T1] Call Trace: [ 38.294932][ T1] dump_stack+0x172/0x1f0 [ 38.294932][ T1] __schedule+0xd03/0x1580 [ 38.294932][ T1] ? __sched_text_start+0x8/0x8 [ 38.294932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.294932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.294932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.294932][ T1] preempt_schedule+0x4b/0x60 [ 38.294932][ T1] ___preempt_schedule+0x16/0x18 [ 38.294932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.294932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.294932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.294932][ T1] ? kasan_check_read+0x11/0x20 [ 38.294932][ T1] wake_up_process+0x10/0x20 [ 38.294932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.294932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.294932][ T1] ? find_held_lock+0x35/0x130 [ 38.294932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.294932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.294932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.294932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.294932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.294932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.294932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.294932][ T1] alloc_workqueue+0x669/0xf00 [ 38.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.294932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.294932][ T1] ? cpumask_next+0x41/0x50 [ 38.294932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.294932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.294932][ T1] init_mm_internals+0x24/0x3c9 [ 38.294932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.294932][ T1] ? rest_init+0x37b/0x37b [ 38.294932][ T1] kernel_init+0x12/0x1c5 [ 38.294932][ T1] ret_from_fork+0x24/0x30 [ 38.294967][ T8] mmdrop (____ptrval____) before 4 [ 38.300075][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.304932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.304932][ T8] Call Trace: [ 38.304932][ T8] dump_stack+0x172/0x1f0 [ 38.304932][ T8] finish_task_switch+0x239/0x790 [ 38.304932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.304932][ T8] __schedule+0x7d3/0x1580 [ 38.304932][ T8] ? __sched_text_start+0x8/0x8 [ 38.304932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.304932][ T8] schedule+0xa8/0x260 [ 38.304932][ T8] kthread+0x27a/0x420 [ 38.304932][ T8] ? process_one_work+0x1790/0x1790 [ 38.304932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.304932][ T8] ret_from_fork+0x24/0x30 [ 38.304986][ T8] mmgrab (____ptrval____) to 4 [ 38.309749][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.314932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.314932][ T8] Call Trace: [ 38.314932][ T8] dump_stack+0x172/0x1f0 [ 38.314932][ T8] __schedule+0xd03/0x1580 [ 38.314932][ T8] ? __sched_text_start+0x8/0x8 [ 38.314932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.314932][ T8] schedule+0xa8/0x260 [ 38.314932][ T8] kthread+0x27a/0x420 [ 38.314932][ T8] ? process_one_work+0x1790/0x1790 [ 38.314932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.314932][ T8] ret_from_fork+0x24/0x30 [ 38.314963][ T7] mmdrop (____ptrval____) before 4 [ 38.320075][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.324932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.324932][ T7] Workqueue: 0x0 (events) [ 38.324932][ T7] Call Trace: [ 38.324932][ T7] dump_stack+0x172/0x1f0 [ 38.324932][ T7] finish_task_switch+0x239/0x790 [ 38.324932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.324932][ T7] __schedule+0x7d3/0x1580 [ 38.324932][ T7] ? __sched_text_start+0x8/0x8 [ 38.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.324932][ T7] ? kthread_data+0x58/0xc0 [ 38.324932][ T7] schedule+0xa8/0x260 [ 38.324932][ T7] worker_thread+0x248/0xe40 [ 38.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.324932][ T7] kthread+0x354/0x420 [ 38.324932][ T7] ? process_one_work+0x1790/0x1790 [ 38.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.324932][ T7] ret_from_fork+0x24/0x30 [ 38.324987][ T7] mmgrab (____ptrval____) to 4 [ 38.329751][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.334932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.334932][ T7] Workqueue: 0x0 (events) [ 38.334932][ T7] Call Trace: [ 38.334932][ T7] dump_stack+0x172/0x1f0 [ 38.334932][ T7] __schedule+0xd03/0x1580 [ 38.334932][ T7] ? __sched_text_start+0x8/0x8 [ 38.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.334932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.334932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.334932][ T7] ? kthread_data+0x58/0xc0 [ 38.334932][ T7] schedule+0xa8/0x260 [ 38.334932][ T7] worker_thread+0x248/0xe40 [ 38.334932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.334932][ T7] kthread+0x354/0x420 [ 38.334932][ T7] ? process_one_work+0x1790/0x1790 [ 38.334932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.334932][ T7] ret_from_fork+0x24/0x30 [ 38.334961][ T2] mmdrop (____ptrval____) before 4 [ 38.344966][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.352010][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.354932][ T2] Call Trace: [ 38.354932][ T2] dump_stack+0x172/0x1f0 [ 38.354932][ T2] finish_task_switch+0x239/0x790 [ 38.354932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.354932][ T2] __schedule+0x7d3/0x1580 [ 38.354932][ T2] ? __sched_text_start+0x8/0x8 [ 38.354932][ T2] schedule+0xa8/0x260 [ 38.354932][ T2] kthreadd+0x5cc/0x740 [ 38.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.354932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.354932][ T2] ret_from_fork+0x24/0x30 [ 38.354974][ T2] mmgrab (____ptrval____) to 4 [ 38.359762][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.364932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.364932][ T2] Call Trace: [ 38.364932][ T2] dump_stack+0x172/0x1f0 [ 38.364932][ T2] __schedule+0xd03/0x1580 [ 38.364932][ T2] ? __sched_text_start+0x8/0x8 [ 38.364932][ T2] schedule+0xa8/0x260 [ 38.364932][ T2] kthreadd+0x5cc/0x740 [ 38.364932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.364932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.364932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.364932][ T2] ret_from_fork+0x24/0x30 [ 38.364966][ T1] mmdrop (____ptrval____) before 4 [ 38.374972][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.382290][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.384932][ T1] Call Trace: [ 38.384932][ T1] dump_stack+0x172/0x1f0 [ 38.384932][ T1] finish_task_switch+0x239/0x790 [ 38.384932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.384932][ T1] __schedule+0x7d3/0x1580 [ 38.384932][ T1] ? __sched_text_start+0x8/0x8 [ 38.384932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.384932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.384932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.384932][ T1] preempt_schedule+0x4b/0x60 [ 38.384932][ T1] ___preempt_schedule+0x16/0x18 [ 38.384932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.384932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.384932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.384932][ T1] ? kasan_check_read+0x11/0x20 [ 38.384932][ T1] wake_up_process+0x10/0x20 [ 38.384932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.384932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.384932][ T1] ? find_held_lock+0x35/0x130 [ 38.384932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.384932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.384932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.384932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.384932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.384932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.384932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.384932][ T1] alloc_workqueue+0x669/0xf00 [ 38.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.384932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.384932][ T1] ? cpumask_next+0x41/0x50 [ 38.384932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.384932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.384932][ T1] init_mm_internals+0x24/0x3c9 [ 38.384932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.384932][ T1] ? rest_init+0x37b/0x37b [ 38.384932][ T1] kernel_init+0x12/0x1c5 [ 38.384932][ T1] ret_from_fork+0x24/0x30 [ 38.384974][ T1] mmgrab (____ptrval____) to 4 [ 38.389735][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.394932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.394932][ T1] Call Trace: [ 38.394932][ T1] dump_stack+0x172/0x1f0 [ 38.394932][ T1] __schedule+0xd03/0x1580 [ 38.394932][ T1] ? __sched_text_start+0x8/0x8 [ 38.394932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.394932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.394932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.394932][ T1] preempt_schedule+0x4b/0x60 [ 38.394932][ T1] ___preempt_schedule+0x16/0x18 [ 38.394932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.394932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.394932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.394932][ T1] ? kasan_check_read+0x11/0x20 [ 38.394932][ T1] wake_up_process+0x10/0x20 [ 38.394932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.394932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.394932][ T1] ? find_held_lock+0x35/0x130 [ 38.394932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.394932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.394932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.394932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.394932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.394932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.394932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.394932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.394932][ T1] alloc_workqueue+0x669/0xf00 [ 38.394932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.394932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.394932][ T1] ? cpumask_next+0x41/0x50 [ 38.394932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.394932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.394932][ T1] init_mm_internals+0x24/0x3c9 [ 38.394932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.394932][ T1] ? rest_init+0x37b/0x37b [ 38.394932][ T1] kernel_init+0x12/0x1c5 [ 38.394932][ T1] ret_from_fork+0x24/0x30 [ 38.394964][ T8] mmdrop (____ptrval____) before 4 [ 38.404979][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.412905][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.414932][ T8] Call Trace: [ 38.414932][ T8] dump_stack+0x172/0x1f0 [ 38.414932][ T8] finish_task_switch+0x239/0x790 [ 38.414932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.414932][ T8] __schedule+0x7d3/0x1580 [ 38.414932][ T8] ? __sched_text_start+0x8/0x8 [ 38.414932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.414932][ T8] schedule+0xa8/0x260 [ 38.414932][ T8] kthread+0x27a/0x420 [ 38.414932][ T8] ? process_one_work+0x1790/0x1790 [ 38.414932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.414932][ T8] ret_from_fork+0x24/0x30 [ 38.414976][ T8] mmgrab (____ptrval____) to 4 [ 38.420302][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.424932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.424932][ T8] Call Trace: [ 38.424932][ T8] dump_stack+0x172/0x1f0 [ 38.424932][ T8] __schedule+0xd03/0x1580 [ 38.424932][ T8] ? __sched_text_start+0x8/0x8 [ 38.424932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.424932][ T8] schedule+0xa8/0x260 [ 38.424932][ T8] kthread+0x27a/0x420 [ 38.424932][ T8] ? process_one_work+0x1790/0x1790 [ 38.424932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.424932][ T8] ret_from_fork+0x24/0x30 [ 38.424963][ T7] mmdrop (____ptrval____) before 4 [ 38.434973][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.442633][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.444932][ T7] Workqueue: 0x0 (events) [ 38.444932][ T7] Call Trace: [ 38.444932][ T7] dump_stack+0x172/0x1f0 [ 38.444932][ T7] finish_task_switch+0x239/0x790 [ 38.444932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.444932][ T7] __schedule+0x7d3/0x1580 [ 38.444932][ T7] ? __sched_text_start+0x8/0x8 [ 38.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.444932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.444932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.444932][ T7] ? kthread_data+0x58/0xc0 [ 38.444932][ T7] schedule+0xa8/0x260 [ 38.444932][ T7] worker_thread+0x248/0xe40 [ 38.444932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.444932][ T7] kthread+0x354/0x420 [ 38.444932][ T7] ? process_one_work+0x1790/0x1790 [ 38.444932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.444932][ T7] ret_from_fork+0x24/0x30 [ 38.444975][ T7] mmgrab (____ptrval____) to 4 [ 38.449735][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.454932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.454932][ T7] Workqueue: 0x0 (events) [ 38.454932][ T7] Call Trace: [ 38.454932][ T7] dump_stack+0x172/0x1f0 [ 38.454932][ T7] __schedule+0xd03/0x1580 [ 38.454932][ T7] ? __sched_text_start+0x8/0x8 [ 38.454932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.454932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.454932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.454932][ T7] ? kthread_data+0x58/0xc0 [ 38.454932][ T7] schedule+0xa8/0x260 [ 38.454932][ T7] worker_thread+0x248/0xe40 [ 38.454932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.454932][ T7] kthread+0x354/0x420 [ 38.454932][ T7] ? process_one_work+0x1790/0x1790 [ 38.454932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.454932][ T7] ret_from_fork+0x24/0x30 [ 38.454961][ T2] mmdrop (____ptrval____) before 4 [ 38.460222][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.464932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.464932][ T2] Call Trace: [ 38.464932][ T2] dump_stack+0x172/0x1f0 [ 38.464932][ T2] finish_task_switch+0x239/0x790 [ 38.464932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.464932][ T2] __schedule+0x7d3/0x1580 [ 38.464932][ T2] ? __sched_text_start+0x8/0x8 [ 38.464932][ T2] schedule+0xa8/0x260 [ 38.464932][ T2] kthreadd+0x5cc/0x740 [ 38.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.464932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.464932][ T2] ret_from_fork+0x24/0x30 [ 38.464977][ T2] mmgrab (____ptrval____) to 4 [ 38.469892][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.474932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.474932][ T2] Call Trace: [ 38.474932][ T2] dump_stack+0x172/0x1f0 [ 38.474932][ T2] __schedule+0xd03/0x1580 [ 38.474932][ T2] ? __sched_text_start+0x8/0x8 [ 38.474932][ T2] schedule+0xa8/0x260 [ 38.474932][ T2] kthreadd+0x5cc/0x740 [ 38.474932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.474932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.474932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.474932][ T2] ret_from_fork+0x24/0x30 [ 38.474963][ T1] mmdrop (____ptrval____) before 4 [ 38.480074][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.484932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.484932][ T1] Call Trace: [ 38.484932][ T1] dump_stack+0x172/0x1f0 [ 38.484932][ T1] finish_task_switch+0x239/0x790 [ 38.484932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.484932][ T1] __schedule+0x7d3/0x1580 [ 38.484932][ T1] ? __sched_text_start+0x8/0x8 [ 38.484932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.484932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.484932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.484932][ T1] preempt_schedule+0x4b/0x60 [ 38.484932][ T1] ___preempt_schedule+0x16/0x18 [ 38.484932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.484932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.484932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.484932][ T1] ? kasan_check_read+0x11/0x20 [ 38.484932][ T1] wake_up_process+0x10/0x20 [ 38.484932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.484932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.484932][ T1] ? find_held_lock+0x35/0x130 [ 38.484932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.484932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.484932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.484932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.484932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.484932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.484932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.484932][ T1] alloc_workqueue+0x669/0xf00 [ 38.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.484932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.484932][ T1] ? cpumask_next+0x41/0x50 [ 38.484932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.484932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.484932][ T1] init_mm_internals+0x24/0x3c9 [ 38.484932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.484932][ T1] ? rest_init+0x37b/0x37b [ 38.484932][ T1] kernel_init+0x12/0x1c5 [ 38.484932][ T1] ret_from_fork+0x24/0x30 [ 38.484975][ T1] mmgrab (____ptrval____) to 4 [ 38.489902][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.494932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.494932][ T1] Call Trace: [ 38.494932][ T1] dump_stack+0x172/0x1f0 [ 38.494932][ T1] __schedule+0xd03/0x1580 [ 38.494932][ T1] ? __sched_text_start+0x8/0x8 [ 38.494932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.494932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.494932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.494932][ T1] preempt_schedule+0x4b/0x60 [ 38.494932][ T1] ___preempt_schedule+0x16/0x18 [ 38.494932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.494932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.494932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.494932][ T1] ? kasan_check_read+0x11/0x20 [ 38.494932][ T1] wake_up_process+0x10/0x20 [ 38.494932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.494932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.494932][ T1] ? find_held_lock+0x35/0x130 [ 38.494932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.494932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.494932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.494932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.494932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.494932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.494932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.494932][ T1] alloc_workqueue+0x669/0xf00 [ 38.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.494932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.494932][ T1] ? cpumask_next+0x41/0x50 [ 38.494932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.494932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.494932][ T1] init_mm_internals+0x24/0x3c9 [ 38.494932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.494932][ T1] ? rest_init+0x37b/0x37b [ 38.494932][ T1] kernel_init+0x12/0x1c5 [ 38.494932][ T1] ret_from_fork+0x24/0x30 [ 38.494961][ T8] mmdrop (____ptrval____) before 4 [ 38.504970][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.512478][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.514932][ T8] Call Trace: [ 38.514932][ T8] dump_stack+0x172/0x1f0 [ 38.514932][ T8] finish_task_switch+0x239/0x790 [ 38.514932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.514932][ T8] __schedule+0x7d3/0x1580 [ 38.514932][ T8] ? __sched_text_start+0x8/0x8 [ 38.514932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.514932][ T8] schedule+0xa8/0x260 [ 38.514932][ T8] kthread+0x27a/0x420 [ 38.514932][ T8] ? process_one_work+0x1790/0x1790 [ 38.514932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.514932][ T8] ret_from_fork+0x24/0x30 [ 38.514974][ T8] mmgrab (____ptrval____) to 4 [ 38.519742][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.524932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.524932][ T8] Call Trace: [ 38.524932][ T8] dump_stack+0x172/0x1f0 [ 38.524932][ T8] __schedule+0xd03/0x1580 [ 38.524932][ T8] ? __sched_text_start+0x8/0x8 [ 38.524932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.524932][ T8] schedule+0xa8/0x260 [ 38.524932][ T8] kthread+0x27a/0x420 [ 38.524932][ T8] ? process_one_work+0x1790/0x1790 [ 38.524932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.524932][ T8] ret_from_fork+0x24/0x30 [ 38.524963][ T7] mmdrop (____ptrval____) before 4 [ 38.534965][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.543047][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.544932][ T7] Workqueue: 0x0 (events) [ 38.544932][ T7] Call Trace: [ 38.544932][ T7] dump_stack+0x172/0x1f0 [ 38.544932][ T7] finish_task_switch+0x239/0x790 [ 38.544932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.544932][ T7] __schedule+0x7d3/0x1580 [ 38.544932][ T7] ? __sched_text_start+0x8/0x8 [ 38.544932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.544932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.544932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.544932][ T7] ? kthread_data+0x58/0xc0 [ 38.544932][ T7] schedule+0xa8/0x260 [ 38.544932][ T7] worker_thread+0x248/0xe40 [ 38.544932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.544932][ T7] kthread+0x354/0x420 [ 38.544932][ T7] ? process_one_work+0x1790/0x1790 [ 38.544932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.544932][ T7] ret_from_fork+0x24/0x30 [ 38.544976][ T7] mmgrab (____ptrval____) to 4 [ 38.549841][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.554932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.554932][ T7] Workqueue: 0x0 (events) [ 38.554932][ T7] Call Trace: [ 38.554932][ T7] dump_stack+0x172/0x1f0 [ 38.554932][ T7] __schedule+0xd03/0x1580 [ 38.554932][ T7] ? __sched_text_start+0x8/0x8 [ 38.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.554932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.554932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.554932][ T7] ? kthread_data+0x58/0xc0 [ 38.554932][ T7] schedule+0xa8/0x260 [ 38.554932][ T7] worker_thread+0x248/0xe40 [ 38.554932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.554932][ T7] kthread+0x354/0x420 [ 38.554932][ T7] ? process_one_work+0x1790/0x1790 [ 38.554932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.554932][ T7] ret_from_fork+0x24/0x30 [ 38.554961][ T2] mmdrop (____ptrval____) before 4 [ 38.560116][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.564932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.564932][ T2] Call Trace: [ 38.564932][ T2] dump_stack+0x172/0x1f0 [ 38.564932][ T2] finish_task_switch+0x239/0x790 [ 38.564932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.564932][ T2] __schedule+0x7d3/0x1580 [ 38.564932][ T2] ? __sched_text_start+0x8/0x8 [ 38.564932][ T2] schedule+0xa8/0x260 [ 38.564932][ T2] kthreadd+0x5cc/0x740 [ 38.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.564932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.564932][ T2] ret_from_fork+0x24/0x30 [ 38.564987][ T2] mmgrab (____ptrval____) to 4 [ 38.570776][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.574932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.574932][ T2] Call Trace: [ 38.574932][ T2] dump_stack+0x172/0x1f0 [ 38.574932][ T2] __schedule+0xd03/0x1580 [ 38.574932][ T2] ? __sched_text_start+0x8/0x8 [ 38.574932][ T2] schedule+0xa8/0x260 [ 38.574932][ T2] kthreadd+0x5cc/0x740 [ 38.574932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.574932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.574932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.574932][ T2] ret_from_fork+0x24/0x30 [ 38.574963][ T1] mmdrop (____ptrval____) before 4 [ 38.584963][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.592083][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.594932][ T1] Call Trace: [ 38.594932][ T1] dump_stack+0x172/0x1f0 [ 38.594932][ T1] finish_task_switch+0x239/0x790 [ 38.594932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.594932][ T1] __schedule+0x7d3/0x1580 [ 38.594932][ T1] ? __sched_text_start+0x8/0x8 [ 38.594932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.594932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.594932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.594932][ T1] preempt_schedule+0x4b/0x60 [ 38.594932][ T1] ___preempt_schedule+0x16/0x18 [ 38.594932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.594932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.594932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.594932][ T1] ? kasan_check_read+0x11/0x20 [ 38.594932][ T1] wake_up_process+0x10/0x20 [ 38.594932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.594932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.594932][ T1] ? find_held_lock+0x35/0x130 [ 38.594932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.594932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.594932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.594932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.594932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.594932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.594932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.594932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.594932][ T1] alloc_workqueue+0x669/0xf00 [ 38.594932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.594932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.594932][ T1] ? cpumask_next+0x41/0x50 [ 38.594932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.594932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.594932][ T1] init_mm_internals+0x24/0x3c9 [ 38.594932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.594932][ T1] ? rest_init+0x37b/0x37b [ 38.594932][ T1] kernel_init+0x12/0x1c5 [ 38.594932][ T1] ret_from_fork+0x24/0x30 [ 38.594975][ T1] mmgrab (____ptrval____) to 4 [ 38.599742][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.604932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.604932][ T1] Call Trace: [ 38.604932][ T1] dump_stack+0x172/0x1f0 [ 38.604932][ T1] __schedule+0xd03/0x1580 [ 38.604932][ T1] ? __sched_text_start+0x8/0x8 [ 38.604932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.604932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.604932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.604932][ T1] preempt_schedule+0x4b/0x60 [ 38.604932][ T1] ___preempt_schedule+0x16/0x18 [ 38.604932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.604932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.604932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.604932][ T1] ? kasan_check_read+0x11/0x20 [ 38.604932][ T1] wake_up_process+0x10/0x20 [ 38.604932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.604932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.604932][ T1] ? find_held_lock+0x35/0x130 [ 38.604932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.604932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.604932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.604932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.604932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.604932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.604932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.604932][ T1] alloc_workqueue+0x669/0xf00 [ 38.604932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.604932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.604932][ T1] ? cpumask_next+0x41/0x50 [ 38.604932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.604932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.604932][ T1] init_mm_internals+0x24/0x3c9 [ 38.604932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.604932][ T1] ? rest_init+0x37b/0x37b [ 38.604932][ T1] kernel_init+0x12/0x1c5 [ 38.604932][ T1] ret_from_fork+0x24/0x30 [ 38.604962][ T2] mmdrop (____ptrval____) before 4 [ 38.610629][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.614932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.614932][ T2] Call Trace: [ 38.614932][ T2] dump_stack+0x172/0x1f0 [ 38.614932][ T2] finish_task_switch+0x239/0x790 [ 38.614932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.614932][ T2] __schedule+0x7d3/0x1580 [ 38.614932][ T2] ? __sched_text_start+0x8/0x8 [ 38.614932][ T2] schedule+0xa8/0x260 [ 38.614932][ T2] kthreadd+0x5cc/0x740 [ 38.614932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.614932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.614932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.614932][ T2] ret_from_fork+0x24/0x30 [ 38.614974][ T2] mmgrab (____ptrval____) to 4 [ 38.619831][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.624932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.624932][ T2] Call Trace: [ 38.624932][ T2] dump_stack+0x172/0x1f0 [ 38.624932][ T2] __schedule+0xd03/0x1580 [ 38.624932][ T2] ? __sched_text_start+0x8/0x8 [ 38.624932][ T2] schedule+0xa8/0x260 [ 38.624932][ T2] kthreadd+0x5cc/0x740 [ 38.624932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.624932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.624932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.624932][ T2] ret_from_fork+0x24/0x30 [ 38.624961][ T8] mmdrop (____ptrval____) before 4 [ 38.630075][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.634932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.634932][ T8] Call Trace: [ 38.634932][ T8] dump_stack+0x172/0x1f0 [ 38.634932][ T8] finish_task_switch+0x239/0x790 [ 38.634932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.634932][ T8] __schedule+0x7d3/0x1580 [ 38.634932][ T8] ? __sched_text_start+0x8/0x8 [ 38.634932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.634932][ T8] schedule+0xa8/0x260 [ 38.634932][ T8] kthread+0x27a/0x420 [ 38.634932][ T8] ? process_one_work+0x1790/0x1790 [ 38.634932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.634932][ T8] ret_from_fork+0x24/0x30 [ 38.634981][ T8] mmgrab (____ptrval____) to 4 [ 38.639775][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.644932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.644932][ T8] Call Trace: [ 38.644932][ T8] dump_stack+0x172/0x1f0 [ 38.644932][ T8] __schedule+0xd03/0x1580 [ 38.644932][ T8] ? __sched_text_start+0x8/0x8 [ 38.644932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.644932][ T8] schedule+0xa8/0x260 [ 38.644932][ T8] kthread+0x27a/0x420 [ 38.644932][ T8] ? process_one_work+0x1790/0x1790 [ 38.644932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.644932][ T8] ret_from_fork+0x24/0x30 [ 38.644963][ T7] mmdrop (____ptrval____) before 4 [ 38.654972][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.662253][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.664932][ T7] Workqueue: 0x0 (events) [ 38.664932][ T7] Call Trace: [ 38.664932][ T7] dump_stack+0x172/0x1f0 [ 38.664932][ T7] finish_task_switch+0x239/0x790 [ 38.664932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.664932][ T7] __schedule+0x7d3/0x1580 [ 38.664932][ T7] ? __sched_text_start+0x8/0x8 [ 38.664932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.664932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.664932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.664932][ T7] ? kthread_data+0x58/0xc0 [ 38.664932][ T7] schedule+0xa8/0x260 [ 38.664932][ T7] worker_thread+0x248/0xe40 [ 38.664932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.664932][ T7] kthread+0x354/0x420 [ 38.664932][ T7] ? process_one_work+0x1790/0x1790 [ 38.664932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.664932][ T7] ret_from_fork+0x24/0x30 [ 38.664974][ T7] mmgrab (____ptrval____) to 4 [ 38.669774][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.674932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.674932][ T7] Workqueue: 0x0 (events) [ 38.674932][ T7] Call Trace: [ 38.674932][ T7] dump_stack+0x172/0x1f0 [ 38.674932][ T7] __schedule+0xd03/0x1580 [ 38.674932][ T7] ? __sched_text_start+0x8/0x8 [ 38.674932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.674932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.674932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.674932][ T7] ? kthread_data+0x58/0xc0 [ 38.674932][ T7] schedule+0xa8/0x260 [ 38.674932][ T7] worker_thread+0x248/0xe40 [ 38.674932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.674932][ T7] kthread+0x354/0x420 [ 38.674932][ T7] ? process_one_work+0x1790/0x1790 [ 38.674932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.674932][ T7] ret_from_fork+0x24/0x30 [ 38.674962][ T2] mmdrop (____ptrval____) before 4 [ 38.684966][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.692141][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.694932][ T2] Call Trace: [ 38.694932][ T2] dump_stack+0x172/0x1f0 [ 38.694932][ T2] finish_task_switch+0x239/0x790 [ 38.694932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.694932][ T2] __schedule+0x7d3/0x1580 [ 38.694932][ T2] ? __sched_text_start+0x8/0x8 [ 38.694932][ T2] schedule+0xa8/0x260 [ 38.694932][ T2] kthreadd+0x5cc/0x740 [ 38.694932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.694932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.694932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.694932][ T2] ret_from_fork+0x24/0x30 [ 38.694975][ T2] mmgrab (____ptrval____) to 4 [ 38.699736][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.704932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.704932][ T2] Call Trace: [ 38.704932][ T2] dump_stack+0x172/0x1f0 [ 38.704932][ T2] __schedule+0xd03/0x1580 [ 38.704932][ T2] ? __sched_text_start+0x8/0x8 [ 38.704932][ T2] schedule+0xa8/0x260 [ 38.704932][ T2] kthreadd+0x5cc/0x740 [ 38.704932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.704932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.704932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.704932][ T2] ret_from_fork+0x24/0x30 [ 38.704963][ T1] mmdrop (____ptrval____) before 4 [ 38.714980][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.722189][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.724932][ T1] Call Trace: [ 38.724932][ T1] dump_stack+0x172/0x1f0 [ 38.724932][ T1] finish_task_switch+0x239/0x790 [ 38.724932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.724932][ T1] __schedule+0x7d3/0x1580 [ 38.724932][ T1] ? __sched_text_start+0x8/0x8 [ 38.724932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.724932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.724932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.724932][ T1] preempt_schedule+0x4b/0x60 [ 38.724932][ T1] ___preempt_schedule+0x16/0x18 [ 38.724932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.724932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.724932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.724932][ T1] ? kasan_check_read+0x11/0x20 [ 38.724932][ T1] wake_up_process+0x10/0x20 [ 38.724932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.724932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.724932][ T1] ? find_held_lock+0x35/0x130 [ 38.724932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.724932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.724932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.724932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.724932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.724932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.724932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.724932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.724932][ T1] alloc_workqueue+0x669/0xf00 [ 38.724932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.724932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.724932][ T1] ? cpumask_next+0x41/0x50 [ 38.724932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.724932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.724932][ T1] init_mm_internals+0x24/0x3c9 [ 38.724932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.724932][ T1] ? rest_init+0x37b/0x37b [ 38.724932][ T1] kernel_init+0x12/0x1c5 [ 38.724932][ T1] ret_from_fork+0x24/0x30 [ 38.724979][ T1] mmgrab (____ptrval____) to 4 [ 38.729922][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.734932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.734932][ T1] Call Trace: [ 38.734932][ T1] dump_stack+0x172/0x1f0 [ 38.734932][ T1] __schedule+0xd03/0x1580 [ 38.734932][ T1] ? __sched_text_start+0x8/0x8 [ 38.734932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.734932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.734932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.734932][ T1] preempt_schedule+0x4b/0x60 [ 38.734932][ T1] ___preempt_schedule+0x16/0x18 [ 38.734932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.734932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.734932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.734932][ T1] ? kasan_check_read+0x11/0x20 [ 38.734932][ T1] wake_up_process+0x10/0x20 [ 38.734932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.734932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.734932][ T1] ? find_held_lock+0x35/0x130 [ 38.734932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.734932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.734932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.734932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.734932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.734932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.734932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.734932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.734932][ T1] alloc_workqueue+0x669/0xf00 [ 38.734932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.734932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.734932][ T1] ? cpumask_next+0x41/0x50 [ 38.734932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.734932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.734932][ T1] init_mm_internals+0x24/0x3c9 [ 38.734932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.734932][ T1] ? rest_init+0x37b/0x37b [ 38.734932][ T1] kernel_init+0x12/0x1c5 [ 38.734932][ T1] ret_from_fork+0x24/0x30 [ 38.734964][ T8] mmdrop (____ptrval____) before 4 [ 38.740070][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.744932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.744932][ T8] Call Trace: [ 38.744932][ T8] dump_stack+0x172/0x1f0 [ 38.744932][ T8] finish_task_switch+0x239/0x790 [ 38.744932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.744932][ T8] __schedule+0x7d3/0x1580 [ 38.744932][ T8] ? __sched_text_start+0x8/0x8 [ 38.744932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.744932][ T8] schedule+0xa8/0x260 [ 38.744932][ T8] kthread+0x27a/0x420 [ 38.744932][ T8] ? process_one_work+0x1790/0x1790 [ 38.744932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.744932][ T8] ret_from_fork+0x24/0x30 [ 38.744986][ T8] mmgrab (____ptrval____) to 4 [ 38.749871][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.754932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.754932][ T8] Call Trace: [ 38.754932][ T8] dump_stack+0x172/0x1f0 [ 38.754932][ T8] __schedule+0xd03/0x1580 [ 38.754932][ T8] ? __sched_text_start+0x8/0x8 [ 38.754932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.754932][ T8] schedule+0xa8/0x260 [ 38.754932][ T8] kthread+0x27a/0x420 [ 38.754932][ T8] ? process_one_work+0x1790/0x1790 [ 38.754932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.754932][ T8] ret_from_fork+0x24/0x30 [ 38.754961][ T7] mmdrop (____ptrval____) before 4 [ 38.760581][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.764932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.764932][ T7] Workqueue: 0x0 (events) [ 38.764932][ T7] Call Trace: [ 38.764932][ T7] dump_stack+0x172/0x1f0 [ 38.764932][ T7] finish_task_switch+0x239/0x790 [ 38.764932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.764932][ T7] __schedule+0x7d3/0x1580 [ 38.764932][ T7] ? __sched_text_start+0x8/0x8 [ 38.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.764932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.764932][ T7] ? kthread_data+0x58/0xc0 [ 38.764932][ T7] schedule+0xa8/0x260 [ 38.764932][ T7] worker_thread+0x248/0xe40 [ 38.764932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.764932][ T7] kthread+0x354/0x420 [ 38.764932][ T7] ? process_one_work+0x1790/0x1790 [ 38.764932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.764932][ T7] ret_from_fork+0x24/0x30 [ 38.764975][ T7] mmgrab (____ptrval____) to 4 [ 38.770122][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.774932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.774932][ T7] Workqueue: 0x0 (events) [ 38.774932][ T7] Call Trace: [ 38.774932][ T7] dump_stack+0x172/0x1f0 [ 38.774932][ T7] __schedule+0xd03/0x1580 [ 38.774932][ T7] ? __sched_text_start+0x8/0x8 [ 38.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.774932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.774932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.774932][ T7] ? kthread_data+0x58/0xc0 [ 38.774932][ T7] schedule+0xa8/0x260 [ 38.774932][ T7] worker_thread+0x248/0xe40 [ 38.774932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.774932][ T7] kthread+0x354/0x420 [ 38.774932][ T7] ? process_one_work+0x1790/0x1790 [ 38.774932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.774932][ T7] ret_from_fork+0x24/0x30 [ 38.774961][ T8] mmdrop (____ptrval____) before 4 [ 38.780196][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.784932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.784932][ T8] Call Trace: [ 38.784932][ T8] dump_stack+0x172/0x1f0 [ 38.784932][ T8] finish_task_switch+0x239/0x790 [ 38.784932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.784932][ T8] __schedule+0x7d3/0x1580 [ 38.784932][ T8] ? __sched_text_start+0x8/0x8 [ 38.784932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.784932][ T8] schedule+0xa8/0x260 [ 38.784932][ T8] kthread+0x27a/0x420 [ 38.784932][ T8] ? process_one_work+0x1790/0x1790 [ 38.784932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.784932][ T8] ret_from_fork+0x24/0x30 [ 38.784972][ T8] mmgrab (____ptrval____) to 4 [ 38.789732][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.794932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.794932][ T8] Call Trace: [ 38.794932][ T8] dump_stack+0x172/0x1f0 [ 38.794932][ T8] __schedule+0xd03/0x1580 [ 38.794932][ T8] ? __sched_text_start+0x8/0x8 [ 38.794932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.794932][ T8] schedule+0xa8/0x260 [ 38.794932][ T8] kthread+0x27a/0x420 [ 38.794932][ T8] ? process_one_work+0x1790/0x1790 [ 38.794932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.794932][ T8] ret_from_fork+0x24/0x30 [ 38.794965][ T2] mmdrop (____ptrval____) before 4 [ 38.804984][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.812253][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.814932][ T2] Call Trace: [ 38.814932][ T2] dump_stack+0x172/0x1f0 [ 38.814932][ T2] finish_task_switch+0x239/0x790 [ 38.814932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.814932][ T2] __schedule+0x7d3/0x1580 [ 38.814932][ T2] ? __sched_text_start+0x8/0x8 [ 38.814932][ T2] schedule+0xa8/0x260 [ 38.814932][ T2] kthreadd+0x5cc/0x740 [ 38.814932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.814932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.814932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.814932][ T2] ret_from_fork+0x24/0x30 [ 38.814974][ T2] mmgrab (____ptrval____) to 4 [ 38.820242][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.824932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.824932][ T2] Call Trace: [ 38.824932][ T2] dump_stack+0x172/0x1f0 [ 38.824932][ T2] __schedule+0xd03/0x1580 [ 38.824932][ T2] ? __sched_text_start+0x8/0x8 [ 38.824932][ T2] schedule+0xa8/0x260 [ 38.824932][ T2] kthreadd+0x5cc/0x740 [ 38.824932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.824932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.824932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.824932][ T2] ret_from_fork+0x24/0x30 [ 38.824962][ T1] mmdrop (____ptrval____) before 4 [ 38.830312][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.834932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.834932][ T1] Call Trace: [ 38.834932][ T1] dump_stack+0x172/0x1f0 [ 38.834932][ T1] finish_task_switch+0x239/0x790 [ 38.834932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.834932][ T1] __schedule+0x7d3/0x1580 [ 38.834932][ T1] ? __sched_text_start+0x8/0x8 [ 38.834932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.834932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.834932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.834932][ T1] preempt_schedule+0x4b/0x60 [ 38.834932][ T1] ___preempt_schedule+0x16/0x18 [ 38.834932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.834932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.834932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.834932][ T1] ? kasan_check_read+0x11/0x20 [ 38.834932][ T1] wake_up_process+0x10/0x20 [ 38.834932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.834932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.834932][ T1] ? find_held_lock+0x35/0x130 [ 38.834932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.834932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.834932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.834932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.834932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.834932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.834932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.834932][ T1] alloc_workqueue+0x669/0xf00 [ 38.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.834932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.834932][ T1] ? cpumask_next+0x41/0x50 [ 38.834932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.834932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.834932][ T1] init_mm_internals+0x24/0x3c9 [ 38.834932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.834932][ T1] ? rest_init+0x37b/0x37b [ 38.834932][ T1] kernel_init+0x12/0x1c5 [ 38.834932][ T1] ret_from_fork+0x24/0x30 [ 38.834976][ T1] mmgrab (____ptrval____) to 4 [ 38.839747][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.844932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.844932][ T1] Call Trace: [ 38.844932][ T1] dump_stack+0x172/0x1f0 [ 38.844932][ T1] __schedule+0xd03/0x1580 [ 38.844932][ T1] ? __sched_text_start+0x8/0x8 [ 38.844932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.844932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.844932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.844932][ T1] preempt_schedule+0x4b/0x60 [ 38.844932][ T1] ___preempt_schedule+0x16/0x18 [ 38.844932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.844932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.844932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.844932][ T1] ? kasan_check_read+0x11/0x20 [ 38.844932][ T1] wake_up_process+0x10/0x20 [ 38.844932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.844932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.844932][ T1] ? find_held_lock+0x35/0x130 [ 38.844932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.844932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.844932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.844932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.844932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.844932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.844932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.844932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.844932][ T1] alloc_workqueue+0x669/0xf00 [ 38.844932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.844932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.844932][ T1] ? cpumask_next+0x41/0x50 [ 38.844932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.844932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.844932][ T1] init_mm_internals+0x24/0x3c9 [ 38.844932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.844932][ T1] ? rest_init+0x37b/0x37b [ 38.844932][ T1] kernel_init+0x12/0x1c5 [ 38.844932][ T1] ret_from_fork+0x24/0x30 [ 38.844963][ T7] mmdrop (____ptrval____) before 4 [ 38.854980][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.862698][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.864932][ T7] Workqueue: 0x0 (events) [ 38.864932][ T7] Call Trace: [ 38.864932][ T7] dump_stack+0x172/0x1f0 [ 38.864932][ T7] finish_task_switch+0x239/0x790 [ 38.864932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.864932][ T7] __schedule+0x7d3/0x1580 [ 38.864932][ T7] ? __sched_text_start+0x8/0x8 [ 38.864932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.864932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.864932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.864932][ T7] ? kthread_data+0x58/0xc0 [ 38.864932][ T7] schedule+0xa8/0x260 [ 38.864932][ T7] worker_thread+0x248/0xe40 [ 38.864932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.864932][ T7] kthread+0x354/0x420 [ 38.864932][ T7] ? process_one_work+0x1790/0x1790 [ 38.864932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.864932][ T7] ret_from_fork+0x24/0x30 [ 38.864974][ T7] mmgrab (____ptrval____) to 4 [ 38.869949][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.874932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.874932][ T7] Workqueue: 0x0 (events) [ 38.874932][ T7] Call Trace: [ 38.874932][ T7] dump_stack+0x172/0x1f0 [ 38.874932][ T7] __schedule+0xd03/0x1580 [ 38.874932][ T7] ? __sched_text_start+0x8/0x8 [ 38.874932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.874932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.874932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.874932][ T7] ? kthread_data+0x58/0xc0 [ 38.874932][ T7] schedule+0xa8/0x260 [ 38.874932][ T7] worker_thread+0x248/0xe40 [ 38.874932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.874932][ T7] kthread+0x354/0x420 [ 38.874932][ T7] ? process_one_work+0x1790/0x1790 [ 38.874932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.874932][ T7] ret_from_fork+0x24/0x30 [ 38.874963][ T8] mmdrop (____ptrval____) before 4 [ 38.880376][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.884932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.884932][ T8] Call Trace: [ 38.884932][ T8] dump_stack+0x172/0x1f0 [ 38.884932][ T8] finish_task_switch+0x239/0x790 [ 38.884932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.884932][ T8] __schedule+0x7d3/0x1580 [ 38.884932][ T8] ? __sched_text_start+0x8/0x8 [ 38.884932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.884932][ T8] schedule+0xa8/0x260 [ 38.884932][ T8] kthread+0x27a/0x420 [ 38.884932][ T8] ? process_one_work+0x1790/0x1790 [ 38.884932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.884932][ T8] ret_from_fork+0x24/0x30 [ 38.884984][ T8] mmgrab (____ptrval____) to 4 [ 38.890534][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.894932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.894932][ T8] Call Trace: [ 38.894932][ T8] dump_stack+0x172/0x1f0 [ 38.894932][ T8] __schedule+0xd03/0x1580 [ 38.894932][ T8] ? __sched_text_start+0x8/0x8 [ 38.894932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.894932][ T8] schedule+0xa8/0x260 [ 38.894932][ T8] kthread+0x27a/0x420 [ 38.894932][ T8] ? process_one_work+0x1790/0x1790 [ 38.894932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.894932][ T8] ret_from_fork+0x24/0x30 [ 38.894962][ T1] mmdrop (____ptrval____) before 4 [ 38.904969][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.912110][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.914932][ T1] Call Trace: [ 38.914932][ T1] dump_stack+0x172/0x1f0 [ 38.914932][ T1] finish_task_switch+0x239/0x790 [ 38.914932][ T1] ? dump_stack+0x1de/0x1f0 [ 38.914932][ T1] __schedule+0x7d3/0x1580 [ 38.914932][ T1] ? __sched_text_start+0x8/0x8 [ 38.914932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.914932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.914932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.914932][ T1] preempt_schedule+0x4b/0x60 [ 38.914932][ T1] ___preempt_schedule+0x16/0x18 [ 38.914932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.914932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.914932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.914932][ T1] ? kasan_check_read+0x11/0x20 [ 38.914932][ T1] wake_up_process+0x10/0x20 [ 38.914932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.914932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.914932][ T1] ? find_held_lock+0x35/0x130 [ 38.914932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.914932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.914932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.914932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.914932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.914932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.914932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.914932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.914932][ T1] alloc_workqueue+0x669/0xf00 [ 38.914932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.914932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.914932][ T1] ? cpumask_next+0x41/0x50 [ 38.914932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.914932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.914932][ T1] init_mm_internals+0x24/0x3c9 [ 38.914932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.914932][ T1] ? rest_init+0x37b/0x37b [ 38.914932][ T1] kernel_init+0x12/0x1c5 [ 38.914932][ T1] ret_from_fork+0x24/0x30 [ 38.914974][ T1] mmgrab (____ptrval____) to 4 [ 38.919872][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 38.924932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.924932][ T1] Call Trace: [ 38.924932][ T1] dump_stack+0x172/0x1f0 [ 38.924932][ T1] __schedule+0xd03/0x1580 [ 38.924932][ T1] ? __sched_text_start+0x8/0x8 [ 38.924932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 38.924932][ T1] ? preempt_schedule+0x4b/0x60 [ 38.924932][ T1] preempt_schedule_common+0x4f/0xe0 [ 38.924932][ T1] preempt_schedule+0x4b/0x60 [ 38.924932][ T1] ___preempt_schedule+0x16/0x18 [ 38.924932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 38.924932][ T1] try_to_wake_up+0xc8/0x13f0 [ 38.924932][ T1] ? migrate_swap_stop+0x920/0x920 [ 38.924932][ T1] ? kasan_check_read+0x11/0x20 [ 38.924932][ T1] wake_up_process+0x10/0x20 [ 38.924932][ T1] __kthread_create_on_node+0x281/0x460 [ 38.924932][ T1] ? kthread_parkme+0xb0/0xb0 [ 38.924932][ T1] ? find_held_lock+0x35/0x130 [ 38.924932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.924932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 38.924932][ T1] kthread_create_on_node+0xbb/0xf0 [ 38.924932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 38.924932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 38.924932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 38.924932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.924932][ T1] init_rescuer.part.0+0x7d/0x190 [ 38.924932][ T1] alloc_workqueue+0x669/0xf00 [ 38.924932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 38.924932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 38.924932][ T1] ? cpumask_next+0x41/0x50 [ 38.924932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.924932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 38.924932][ T1] init_mm_internals+0x24/0x3c9 [ 38.924932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 38.924932][ T1] ? rest_init+0x37b/0x37b [ 38.924932][ T1] kernel_init+0x12/0x1c5 [ 38.924932][ T1] ret_from_fork+0x24/0x30 [ 38.924972][ T2] mmdrop (____ptrval____) before 4 [ 38.934966][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.942092][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.944932][ T2] Call Trace: [ 38.944932][ T2] dump_stack+0x172/0x1f0 [ 38.944932][ T2] finish_task_switch+0x239/0x790 [ 38.944932][ T2] ? dump_stack+0x1de/0x1f0 [ 38.944932][ T2] __schedule+0x7d3/0x1580 [ 38.944932][ T2] ? __sched_text_start+0x8/0x8 [ 38.944932][ T2] schedule+0xa8/0x260 [ 38.944932][ T2] kthreadd+0x5cc/0x740 [ 38.944932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.944932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.944932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.944932][ T2] ret_from_fork+0x24/0x30 [ 38.944974][ T2] mmgrab (____ptrval____) to 4 [ 38.949839][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 38.954932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.954932][ T2] Call Trace: [ 38.954932][ T2] dump_stack+0x172/0x1f0 [ 38.954932][ T2] __schedule+0xd03/0x1580 [ 38.954932][ T2] ? __sched_text_start+0x8/0x8 [ 38.954932][ T2] schedule+0xa8/0x260 [ 38.954932][ T2] kthreadd+0x5cc/0x740 [ 38.954932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.954932][ T2] ? calculate_sigpending+0x87/0xa0 [ 38.954932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 38.954932][ T2] ret_from_fork+0x24/0x30 [ 38.954965][ T7] mmdrop (____ptrval____) before 4 [ 38.964980][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.972339][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.974932][ T7] Workqueue: 0x0 (events) [ 38.974932][ T7] Call Trace: [ 38.974932][ T7] dump_stack+0x172/0x1f0 [ 38.974932][ T7] finish_task_switch+0x239/0x790 [ 38.974932][ T7] ? dump_stack+0x1de/0x1f0 [ 38.974932][ T7] __schedule+0x7d3/0x1580 [ 38.974932][ T7] ? __sched_text_start+0x8/0x8 [ 38.974932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.974932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.974932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.974932][ T7] ? kthread_data+0x58/0xc0 [ 38.974932][ T7] schedule+0xa8/0x260 [ 38.974932][ T7] worker_thread+0x248/0xe40 [ 38.974932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.974932][ T7] kthread+0x354/0x420 [ 38.974932][ T7] ? process_one_work+0x1790/0x1790 [ 38.974932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.974932][ T7] ret_from_fork+0x24/0x30 [ 38.975002][ T7] mmgrab (____ptrval____) to 4 [ 38.979850][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 38.984932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.984932][ T7] Workqueue: 0x0 (events) [ 38.984932][ T7] Call Trace: [ 38.984932][ T7] dump_stack+0x172/0x1f0 [ 38.984932][ T7] __schedule+0xd03/0x1580 [ 38.984932][ T7] ? __sched_text_start+0x8/0x8 [ 38.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.984932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 38.984932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.984932][ T7] ? kthread_data+0x58/0xc0 [ 38.984932][ T7] schedule+0xa8/0x260 [ 38.984932][ T7] worker_thread+0x248/0xe40 [ 38.984932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 38.984932][ T7] kthread+0x354/0x420 [ 38.984932][ T7] ? process_one_work+0x1790/0x1790 [ 38.984932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.984932][ T7] ret_from_fork+0x24/0x30 [ 38.984963][ T8] mmdrop (____ptrval____) before 4 [ 38.990115][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 38.994932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.994932][ T8] Call Trace: [ 38.994932][ T8] dump_stack+0x172/0x1f0 [ 38.994932][ T8] finish_task_switch+0x239/0x790 [ 38.994932][ T8] ? dump_stack+0x1de/0x1f0 [ 38.994932][ T8] __schedule+0x7d3/0x1580 [ 38.994932][ T8] ? __sched_text_start+0x8/0x8 [ 38.994932][ T8] ? ___preempt_schedule+0x16/0x18 [ 38.994932][ T8] schedule+0xa8/0x260 [ 38.994932][ T8] kthread+0x27a/0x420 [ 38.994932][ T8] ? process_one_work+0x1790/0x1790 [ 38.994932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 38.994932][ T8] ret_from_fork+0x24/0x30 [ 38.995002][ T8] mmgrab (____ptrval____) to 4 [ 38.999772][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.004932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.004932][ T8] Call Trace: [ 39.004932][ T8] dump_stack+0x172/0x1f0 [ 39.004932][ T8] __schedule+0xd03/0x1580 [ 39.004932][ T8] ? __sched_text_start+0x8/0x8 [ 39.004932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.004932][ T8] schedule+0xa8/0x260 [ 39.004932][ T8] kthread+0x27a/0x420 [ 39.004932][ T8] ? process_one_work+0x1790/0x1790 [ 39.004932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.004932][ T8] ret_from_fork+0x24/0x30 [ 39.004961][ T1] mmdrop (____ptrval____) before 4 [ 39.014964][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.022522][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.024932][ T1] Call Trace: [ 39.024932][ T1] dump_stack+0x172/0x1f0 [ 39.024932][ T1] finish_task_switch+0x239/0x790 [ 39.024932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.024932][ T1] __schedule+0x7d3/0x1580 [ 39.024932][ T1] ? __sched_text_start+0x8/0x8 [ 39.024932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.024932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.024932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.024932][ T1] preempt_schedule+0x4b/0x60 [ 39.024932][ T1] ___preempt_schedule+0x16/0x18 [ 39.024932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.024932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.024932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.024932][ T1] ? kasan_check_read+0x11/0x20 [ 39.024932][ T1] wake_up_process+0x10/0x20 [ 39.024932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.024932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.024932][ T1] ? find_held_lock+0x35/0x130 [ 39.024932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.024932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.024932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.024932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.024932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.024932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.024932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.024932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.024932][ T1] alloc_workqueue+0x669/0xf00 [ 39.024932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.024932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.024932][ T1] ? cpumask_next+0x41/0x50 [ 39.024932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.024932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.024932][ T1] init_mm_internals+0x24/0x3c9 [ 39.024932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.024932][ T1] ? rest_init+0x37b/0x37b [ 39.024932][ T1] kernel_init+0x12/0x1c5 [ 39.024932][ T1] ret_from_fork+0x24/0x30 [ 39.024974][ T1] mmgrab (____ptrval____) to 4 [ 39.030000][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.034932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.034932][ T1] Call Trace: [ 39.034932][ T1] dump_stack+0x172/0x1f0 [ 39.034932][ T1] __schedule+0xd03/0x1580 [ 39.034932][ T1] ? __sched_text_start+0x8/0x8 [ 39.034932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.034932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.034932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.034932][ T1] preempt_schedule+0x4b/0x60 [ 39.034932][ T1] ___preempt_schedule+0x16/0x18 [ 39.034932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.034932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.034932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.034932][ T1] ? kasan_check_read+0x11/0x20 [ 39.034932][ T1] wake_up_process+0x10/0x20 [ 39.034932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.034932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.034932][ T1] ? find_held_lock+0x35/0x130 [ 39.034932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.034932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.034932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.034932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.034932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.034932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.034932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.034932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.034932][ T1] alloc_workqueue+0x669/0xf00 [ 39.034932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.034932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.034932][ T1] ? cpumask_next+0x41/0x50 [ 39.034932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.034932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.034932][ T1] init_mm_internals+0x24/0x3c9 [ 39.034932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.034932][ T1] ? rest_init+0x37b/0x37b [ 39.034932][ T1] kernel_init+0x12/0x1c5 [ 39.034932][ T1] ret_from_fork+0x24/0x30 [ 39.034967][ T2] mmdrop (____ptrval____) before 4 [ 39.044981][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.052221][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.054932][ T2] Call Trace: [ 39.054932][ T2] dump_stack+0x172/0x1f0 [ 39.054932][ T2] finish_task_switch+0x239/0x790 [ 39.054932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.054932][ T2] __schedule+0x7d3/0x1580 [ 39.054932][ T2] ? __sched_text_start+0x8/0x8 [ 39.054932][ T2] schedule+0xa8/0x260 [ 39.054932][ T2] kthreadd+0x5cc/0x740 [ 39.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.054932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.054932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.054932][ T2] ret_from_fork+0x24/0x30 [ 39.054981][ T2] mmgrab (____ptrval____) to 4 [ 39.060571][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.064932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.064932][ T2] Call Trace: [ 39.064932][ T2] dump_stack+0x172/0x1f0 [ 39.064932][ T2] __schedule+0xd03/0x1580 [ 39.064932][ T2] ? __sched_text_start+0x8/0x8 [ 39.064932][ T2] schedule+0xa8/0x260 [ 39.064932][ T2] kthreadd+0x5cc/0x740 [ 39.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.064932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.064932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.064932][ T2] ret_from_fork+0x24/0x30 [ 39.064961][ T7] mmdrop (____ptrval____) before 4 [ 39.074965][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.082702][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.084932][ T7] Workqueue: 0x0 (events) [ 39.084932][ T7] Call Trace: [ 39.084932][ T7] dump_stack+0x172/0x1f0 [ 39.084932][ T7] finish_task_switch+0x239/0x790 [ 39.084932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.084932][ T7] __schedule+0x7d3/0x1580 [ 39.084932][ T7] ? __sched_text_start+0x8/0x8 [ 39.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.084932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.084932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.084932][ T7] ? kthread_data+0x58/0xc0 [ 39.084932][ T7] schedule+0xa8/0x260 [ 39.084932][ T7] worker_thread+0x248/0xe40 [ 39.084932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.084932][ T7] kthread+0x354/0x420 [ 39.084932][ T7] ? process_one_work+0x1790/0x1790 [ 39.084932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.084932][ T7] ret_from_fork+0x24/0x30 [ 39.084978][ T7] mmgrab (____ptrval____) to 4 [ 39.090267][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.094932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.094932][ T7] Workqueue: 0x0 (events) [ 39.094932][ T7] Call Trace: [ 39.094932][ T7] dump_stack+0x172/0x1f0 [ 39.094932][ T7] __schedule+0xd03/0x1580 [ 39.094932][ T7] ? __sched_text_start+0x8/0x8 [ 39.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.094932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.094932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.094932][ T7] ? kthread_data+0x58/0xc0 [ 39.094932][ T7] schedule+0xa8/0x260 [ 39.094932][ T7] worker_thread+0x248/0xe40 [ 39.094932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.094932][ T7] kthread+0x354/0x420 [ 39.094932][ T7] ? process_one_work+0x1790/0x1790 [ 39.094932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.094932][ T7] ret_from_fork+0x24/0x30 [ 39.094963][ T8] mmdrop (____ptrval____) before 4 [ 39.104974][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.112645][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.114932][ T8] Call Trace: [ 39.114932][ T8] dump_stack+0x172/0x1f0 [ 39.114932][ T8] finish_task_switch+0x239/0x790 [ 39.114932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.114932][ T8] __schedule+0x7d3/0x1580 [ 39.114932][ T8] ? __sched_text_start+0x8/0x8 [ 39.114932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.114932][ T8] schedule+0xa8/0x260 [ 39.114932][ T8] kthread+0x27a/0x420 [ 39.114932][ T8] ? process_one_work+0x1790/0x1790 [ 39.114932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.114932][ T8] ret_from_fork+0x24/0x30 [ 39.114975][ T8] mmgrab (____ptrval____) to 4 [ 39.119739][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.124932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.124932][ T8] Call Trace: [ 39.124932][ T8] dump_stack+0x172/0x1f0 [ 39.124932][ T8] __schedule+0xd03/0x1580 [ 39.124932][ T8] ? __sched_text_start+0x8/0x8 [ 39.124932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.124932][ T8] schedule+0xa8/0x260 [ 39.124932][ T8] kthread+0x27a/0x420 [ 39.124932][ T8] ? process_one_work+0x1790/0x1790 [ 39.124932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.124932][ T8] ret_from_fork+0x24/0x30 [ 39.124962][ T1] mmdrop (____ptrval____) before 4 [ 39.135039][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.142395][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.144932][ T1] Call Trace: [ 39.144932][ T1] dump_stack+0x172/0x1f0 [ 39.144932][ T1] finish_task_switch+0x239/0x790 [ 39.144932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.144932][ T1] __schedule+0x7d3/0x1580 [ 39.144932][ T1] ? __sched_text_start+0x8/0x8 [ 39.144932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.144932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.144932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.144932][ T1] preempt_schedule+0x4b/0x60 [ 39.144932][ T1] ___preempt_schedule+0x16/0x18 [ 39.144932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.144932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.144932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.144932][ T1] ? kasan_check_read+0x11/0x20 [ 39.144932][ T1] wake_up_process+0x10/0x20 [ 39.144932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.144932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.144932][ T1] ? find_held_lock+0x35/0x130 [ 39.144932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.144932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.144932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.144932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.144932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.144932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.144932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.144932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.144932][ T1] alloc_workqueue+0x669/0xf00 [ 39.144932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.144932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.144932][ T1] ? cpumask_next+0x41/0x50 [ 39.144932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.144932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.144932][ T1] init_mm_internals+0x24/0x3c9 [ 39.144932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.144932][ T1] ? rest_init+0x37b/0x37b [ 39.144932][ T1] kernel_init+0x12/0x1c5 [ 39.144932][ T1] ret_from_fork+0x24/0x30 [ 39.144977][ T1] mmgrab (____ptrval____) to 4 [ 39.149735][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.154932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.154932][ T1] Call Trace: [ 39.154932][ T1] dump_stack+0x172/0x1f0 [ 39.154932][ T1] __schedule+0xd03/0x1580 [ 39.154932][ T1] ? __sched_text_start+0x8/0x8 [ 39.154932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.154932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.154932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.154932][ T1] preempt_schedule+0x4b/0x60 [ 39.154932][ T1] ___preempt_schedule+0x16/0x18 [ 39.154932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.154932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.154932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.154932][ T1] ? kasan_check_read+0x11/0x20 [ 39.154932][ T1] wake_up_process+0x10/0x20 [ 39.154932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.154932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.154932][ T1] ? find_held_lock+0x35/0x130 [ 39.154932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.154932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.154932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.154932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.154932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.154932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.154932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.154932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.154932][ T1] alloc_workqueue+0x669/0xf00 [ 39.154932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.154932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.154932][ T1] ? cpumask_next+0x41/0x50 [ 39.154932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.154932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.154932][ T1] init_mm_internals+0x24/0x3c9 [ 39.154932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.154932][ T1] ? rest_init+0x37b/0x37b [ 39.154932][ T1] kernel_init+0x12/0x1c5 [ 39.154932][ T1] ret_from_fork+0x24/0x30 [ 39.154963][ T2] mmdrop (____ptrval____) before 4 [ 39.160081][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.164932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.164932][ T2] Call Trace: [ 39.164932][ T2] dump_stack+0x172/0x1f0 [ 39.164932][ T2] finish_task_switch+0x239/0x790 [ 39.164932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.164932][ T2] __schedule+0x7d3/0x1580 [ 39.164932][ T2] ? __sched_text_start+0x8/0x8 [ 39.164932][ T2] schedule+0xa8/0x260 [ 39.164932][ T2] kthreadd+0x5cc/0x740 [ 39.164932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.164932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.164932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.164932][ T2] ret_from_fork+0x24/0x30 [ 39.164979][ T2] mmgrab (____ptrval____) to 4 [ 39.169961][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.174932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.174932][ T2] Call Trace: [ 39.174932][ T2] dump_stack+0x172/0x1f0 [ 39.174932][ T2] __schedule+0xd03/0x1580 [ 39.174932][ T2] ? __sched_text_start+0x8/0x8 [ 39.174932][ T2] schedule+0xa8/0x260 [ 39.174932][ T2] kthreadd+0x5cc/0x740 [ 39.174932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.174932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.174932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.174932][ T2] ret_from_fork+0x24/0x30 [ 39.174964][ T7] mmdrop (____ptrval____) before 4 [ 39.184971][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.192258][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.194932][ T7] Workqueue: 0x0 (events) [ 39.194932][ T7] Call Trace: [ 39.194932][ T7] dump_stack+0x172/0x1f0 [ 39.194932][ T7] finish_task_switch+0x239/0x790 [ 39.194932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.194932][ T7] __schedule+0x7d3/0x1580 [ 39.194932][ T7] ? __sched_text_start+0x8/0x8 [ 39.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.194932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.194932][ T7] ? kthread_data+0x58/0xc0 [ 39.194932][ T7] schedule+0xa8/0x260 [ 39.194932][ T7] worker_thread+0x248/0xe40 [ 39.194932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.194932][ T7] kthread+0x354/0x420 [ 39.194932][ T7] ? process_one_work+0x1790/0x1790 [ 39.194932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.194932][ T7] ret_from_fork+0x24/0x30 [ 39.194975][ T7] mmgrab (____ptrval____) to 4 [ 39.199739][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.204932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.204932][ T7] Workqueue: 0x0 (events) [ 39.204932][ T7] Call Trace: [ 39.204932][ T7] dump_stack+0x172/0x1f0 [ 39.204932][ T7] __schedule+0xd03/0x1580 [ 39.204932][ T7] ? __sched_text_start+0x8/0x8 [ 39.204932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.204932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.204932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.204932][ T7] ? kthread_data+0x58/0xc0 [ 39.204932][ T7] schedule+0xa8/0x260 [ 39.204932][ T7] worker_thread+0x248/0xe40 [ 39.204932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.204932][ T7] kthread+0x354/0x420 [ 39.204932][ T7] ? process_one_work+0x1790/0x1790 [ 39.204932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.204932][ T7] ret_from_fork+0x24/0x30 [ 39.204962][ T8] mmdrop (____ptrval____) before 4 [ 39.214969][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.222904][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.224932][ T8] Call Trace: [ 39.224932][ T8] dump_stack+0x172/0x1f0 [ 39.224932][ T8] finish_task_switch+0x239/0x790 [ 39.224932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.224932][ T8] __schedule+0x7d3/0x1580 [ 39.224932][ T8] ? __sched_text_start+0x8/0x8 [ 39.224932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.224932][ T8] schedule+0xa8/0x260 [ 39.224932][ T8] kthread+0x27a/0x420 [ 39.224932][ T8] ? process_one_work+0x1790/0x1790 [ 39.224932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.224932][ T8] ret_from_fork+0x24/0x30 [ 39.224974][ T8] mmgrab (____ptrval____) to 4 [ 39.229732][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.234932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.234932][ T8] Call Trace: [ 39.234932][ T8] dump_stack+0x172/0x1f0 [ 39.234932][ T8] __schedule+0xd03/0x1580 [ 39.234932][ T8] ? __sched_text_start+0x8/0x8 [ 39.234932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.234932][ T8] schedule+0xa8/0x260 [ 39.234932][ T8] kthread+0x27a/0x420 [ 39.234932][ T8] ? process_one_work+0x1790/0x1790 [ 39.234932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.234932][ T8] ret_from_fork+0x24/0x30 [ 39.234962][ T2] mmdrop (____ptrval____) before 4 [ 39.244987][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.252643][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.254932][ T2] Call Trace: [ 39.254932][ T2] dump_stack+0x172/0x1f0 [ 39.254932][ T2] finish_task_switch+0x239/0x790 [ 39.254932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.254932][ T2] __schedule+0x7d3/0x1580 [ 39.254932][ T2] ? __sched_text_start+0x8/0x8 [ 39.254932][ T2] schedule+0xa8/0x260 [ 39.254932][ T2] kthreadd+0x5cc/0x740 [ 39.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.254932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.254932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.254932][ T2] ret_from_fork+0x24/0x30 [ 39.254974][ T2] mmgrab (____ptrval____) to 4 [ 39.259852][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.264932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.264932][ T2] Call Trace: [ 39.264932][ T2] dump_stack+0x172/0x1f0 [ 39.264932][ T2] __schedule+0xd03/0x1580 [ 39.264932][ T2] ? __sched_text_start+0x8/0x8 [ 39.264932][ T2] schedule+0xa8/0x260 [ 39.264932][ T2] kthreadd+0x5cc/0x740 [ 39.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.264932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.264932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.264932][ T2] ret_from_fork+0x24/0x30 [ 39.264963][ T1] mmdrop (____ptrval____) before 4 [ 39.274979][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.282086][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.284932][ T1] Call Trace: [ 39.284932][ T1] dump_stack+0x172/0x1f0 [ 39.284932][ T1] finish_task_switch+0x239/0x790 [ 39.284932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.284932][ T1] __schedule+0x7d3/0x1580 [ 39.284932][ T1] ? __sched_text_start+0x8/0x8 [ 39.284932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.284932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.284932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.284932][ T1] preempt_schedule+0x4b/0x60 [ 39.284932][ T1] ___preempt_schedule+0x16/0x18 [ 39.284932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.284932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.284932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.284932][ T1] ? kasan_check_read+0x11/0x20 [ 39.284932][ T1] wake_up_process+0x10/0x20 [ 39.284932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.284932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.284932][ T1] ? find_held_lock+0x35/0x130 [ 39.284932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.284932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.284932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.284932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.284932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.284932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.284932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.284932][ T1] alloc_workqueue+0x669/0xf00 [ 39.284932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.284932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.284932][ T1] ? cpumask_next+0x41/0x50 [ 39.284932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.284932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.284932][ T1] init_mm_internals+0x24/0x3c9 [ 39.284932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.284932][ T1] ? rest_init+0x37b/0x37b [ 39.284932][ T1] kernel_init+0x12/0x1c5 [ 39.284932][ T1] ret_from_fork+0x24/0x30 [ 39.284977][ T1] mmgrab (____ptrval____) to 4 [ 39.289748][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.294932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.294932][ T1] Call Trace: [ 39.294932][ T1] dump_stack+0x172/0x1f0 [ 39.294932][ T1] __schedule+0xd03/0x1580 [ 39.294932][ T1] ? __sched_text_start+0x8/0x8 [ 39.294932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.294932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.294932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.294932][ T1] preempt_schedule+0x4b/0x60 [ 39.294932][ T1] ___preempt_schedule+0x16/0x18 [ 39.294932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.294932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.294932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.294932][ T1] ? kasan_check_read+0x11/0x20 [ 39.294932][ T1] wake_up_process+0x10/0x20 [ 39.294932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.294932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.294932][ T1] ? find_held_lock+0x35/0x130 [ 39.294932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.294932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.294932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.294932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.294932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.294932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.294932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.294932][ T1] alloc_workqueue+0x669/0xf00 [ 39.294932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.294932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.294932][ T1] ? cpumask_next+0x41/0x50 [ 39.294932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.294932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.294932][ T1] init_mm_internals+0x24/0x3c9 [ 39.294932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.294932][ T1] ? rest_init+0x37b/0x37b [ 39.294932][ T1] kernel_init+0x12/0x1c5 [ 39.294932][ T1] ret_from_fork+0x24/0x30 [ 39.294962][ T7] mmdrop (____ptrval____) before 4 [ 39.304964][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.312268][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.314932][ T7] Workqueue: 0x0 (events) [ 39.314932][ T7] Call Trace: [ 39.314932][ T7] dump_stack+0x172/0x1f0 [ 39.314932][ T7] finish_task_switch+0x239/0x790 [ 39.314932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.314932][ T7] __schedule+0x7d3/0x1580 [ 39.314932][ T7] ? __sched_text_start+0x8/0x8 [ 39.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.314932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.314932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.314932][ T7] ? kthread_data+0x58/0xc0 [ 39.314932][ T7] schedule+0xa8/0x260 [ 39.314932][ T7] worker_thread+0x248/0xe40 [ 39.314932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.314932][ T7] kthread+0x354/0x420 [ 39.314932][ T7] ? process_one_work+0x1790/0x1790 [ 39.314932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.314932][ T7] ret_from_fork+0x24/0x30 [ 39.314973][ T7] mmgrab (____ptrval____) to 4 [ 39.319867][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.324932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.324932][ T7] Workqueue: 0x0 (events) [ 39.324932][ T7] Call Trace: [ 39.324932][ T7] dump_stack+0x172/0x1f0 [ 39.324932][ T7] __schedule+0xd03/0x1580 [ 39.324932][ T7] ? __sched_text_start+0x8/0x8 [ 39.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.324932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.324932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.324932][ T7] ? kthread_data+0x58/0xc0 [ 39.324932][ T7] schedule+0xa8/0x260 [ 39.324932][ T7] worker_thread+0x248/0xe40 [ 39.324932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.324932][ T7] kthread+0x354/0x420 [ 39.324932][ T7] ? process_one_work+0x1790/0x1790 [ 39.324932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.324932][ T7] ret_from_fork+0x24/0x30 [ 39.324961][ T8] mmdrop (____ptrval____) before 4 [ 39.330188][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.334932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.334932][ T8] Call Trace: [ 39.334932][ T8] dump_stack+0x172/0x1f0 [ 39.334932][ T8] finish_task_switch+0x239/0x790 [ 39.334932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.334932][ T8] __schedule+0x7d3/0x1580 [ 39.334932][ T8] ? __sched_text_start+0x8/0x8 [ 39.334932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.334932][ T8] schedule+0xa8/0x260 [ 39.334932][ T8] kthread+0x27a/0x420 [ 39.334932][ T8] ? process_one_work+0x1790/0x1790 [ 39.334932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.334932][ T8] ret_from_fork+0x24/0x30 [ 39.334984][ T8] mmgrab (____ptrval____) to 4 [ 39.339999][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.344932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.344932][ T8] Call Trace: [ 39.344932][ T8] dump_stack+0x172/0x1f0 [ 39.344932][ T8] __schedule+0xd03/0x1580 [ 39.344932][ T8] ? __sched_text_start+0x8/0x8 [ 39.344932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.344932][ T8] schedule+0xa8/0x260 [ 39.344932][ T8] kthread+0x27a/0x420 [ 39.344932][ T8] ? process_one_work+0x1790/0x1790 [ 39.344932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.344932][ T8] ret_from_fork+0x24/0x30 [ 39.344966][ T2] mmdrop (____ptrval____) before 4 [ 39.350299][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.354932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.354932][ T2] Call Trace: [ 39.354932][ T2] dump_stack+0x172/0x1f0 [ 39.354932][ T2] finish_task_switch+0x239/0x790 [ 39.354932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.354932][ T2] __schedule+0x7d3/0x1580 [ 39.354932][ T2] ? __sched_text_start+0x8/0x8 [ 39.354932][ T2] schedule+0xa8/0x260 [ 39.354932][ T2] kthreadd+0x5cc/0x740 [ 39.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.354932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.354932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.354932][ T2] ret_from_fork+0x24/0x30 [ 39.354976][ T2] mmgrab (____ptrval____) to 4 [ 39.360407][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.364932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.364932][ T2] Call Trace: [ 39.364932][ T2] dump_stack+0x172/0x1f0 [ 39.364932][ T2] __schedule+0xd03/0x1580 [ 39.364932][ T2] ? __sched_text_start+0x8/0x8 [ 39.364932][ T2] schedule+0xa8/0x260 [ 39.364932][ T2] kthreadd+0x5cc/0x740 [ 39.364932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.364932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.364932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.364932][ T2] ret_from_fork+0x24/0x30 [ 39.364968][ T1] mmdrop (____ptrval____) before 4 [ 39.370077][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.374932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.374932][ T1] Call Trace: [ 39.374932][ T1] dump_stack+0x172/0x1f0 [ 39.374932][ T1] finish_task_switch+0x239/0x790 [ 39.374932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.374932][ T1] __schedule+0x7d3/0x1580 [ 39.374932][ T1] ? __sched_text_start+0x8/0x8 [ 39.374932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.374932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.374932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.374932][ T1] preempt_schedule+0x4b/0x60 [ 39.374932][ T1] ___preempt_schedule+0x16/0x18 [ 39.374932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.374932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.374932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.374932][ T1] ? kasan_check_read+0x11/0x20 [ 39.374932][ T1] wake_up_process+0x10/0x20 [ 39.374932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.374932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.374932][ T1] ? find_held_lock+0x35/0x130 [ 39.374932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.374932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.374932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.374932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.374932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.374932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.374932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.374932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.374932][ T1] alloc_workqueue+0x669/0xf00 [ 39.374932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.374932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.374932][ T1] ? cpumask_next+0x41/0x50 [ 39.374932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.374932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.374932][ T1] init_mm_internals+0x24/0x3c9 [ 39.374932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.374932][ T1] ? rest_init+0x37b/0x37b [ 39.374932][ T1] kernel_init+0x12/0x1c5 [ 39.374932][ T1] ret_from_fork+0x24/0x30 [ 39.374974][ T1] mmgrab (____ptrval____) to 4 [ 39.379733][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.384932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.384932][ T1] Call Trace: [ 39.384932][ T1] dump_stack+0x172/0x1f0 [ 39.384932][ T1] __schedule+0xd03/0x1580 [ 39.384932][ T1] ? __sched_text_start+0x8/0x8 [ 39.384932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.384932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.384932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.384932][ T1] preempt_schedule+0x4b/0x60 [ 39.384932][ T1] ___preempt_schedule+0x16/0x18 [ 39.384932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.384932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.384932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.384932][ T1] ? kasan_check_read+0x11/0x20 [ 39.384932][ T1] wake_up_process+0x10/0x20 [ 39.384932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.384932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.384932][ T1] ? find_held_lock+0x35/0x130 [ 39.384932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.384932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.384932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.384932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.384932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.384932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.384932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.384932][ T1] alloc_workqueue+0x669/0xf00 [ 39.384932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.384932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.384932][ T1] ? cpumask_next+0x41/0x50 [ 39.384932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.384932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.384932][ T1] init_mm_internals+0x24/0x3c9 [ 39.384932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.384932][ T1] ? rest_init+0x37b/0x37b [ 39.384932][ T1] kernel_init+0x12/0x1c5 [ 39.384932][ T1] ret_from_fork+0x24/0x30 [ 39.384967][ T8] mmdrop (____ptrval____) before 4 [ 39.390682][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.394932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.394932][ T8] Call Trace: [ 39.394932][ T8] dump_stack+0x172/0x1f0 [ 39.394932][ T8] finish_task_switch+0x239/0x790 [ 39.394932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.394932][ T8] __schedule+0x7d3/0x1580 [ 39.394932][ T8] ? __sched_text_start+0x8/0x8 [ 39.394932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.394932][ T8] schedule+0xa8/0x260 [ 39.394932][ T8] kthread+0x27a/0x420 [ 39.394932][ T8] ? process_one_work+0x1790/0x1790 [ 39.394932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.394932][ T8] ret_from_fork+0x24/0x30 [ 39.394985][ T8] mmgrab (____ptrval____) to 4 [ 39.399802][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.404932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.404932][ T8] Call Trace: [ 39.404932][ T8] dump_stack+0x172/0x1f0 [ 39.404932][ T8] __schedule+0xd03/0x1580 [ 39.404932][ T8] ? __sched_text_start+0x8/0x8 [ 39.404932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.404932][ T8] schedule+0xa8/0x260 [ 39.404932][ T8] kthread+0x27a/0x420 [ 39.404932][ T8] ? process_one_work+0x1790/0x1790 [ 39.404932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.404932][ T8] ret_from_fork+0x24/0x30 [ 39.404963][ T7] mmdrop (____ptrval____) before 4 [ 39.414978][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.423059][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.424932][ T7] Workqueue: 0x0 (events) [ 39.424932][ T7] Call Trace: [ 39.424932][ T7] dump_stack+0x172/0x1f0 [ 39.424932][ T7] finish_task_switch+0x239/0x790 [ 39.424932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.424932][ T7] __schedule+0x7d3/0x1580 [ 39.424932][ T7] ? __sched_text_start+0x8/0x8 [ 39.424932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.424932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.424932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.424932][ T7] ? kthread_data+0x58/0xc0 [ 39.424932][ T7] schedule+0xa8/0x260 [ 39.424932][ T7] worker_thread+0x248/0xe40 [ 39.424932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.424932][ T7] kthread+0x354/0x420 [ 39.424932][ T7] ? process_one_work+0x1790/0x1790 [ 39.424932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.424932][ T7] ret_from_fork+0x24/0x30 [ 39.424976][ T7] mmgrab (____ptrval____) to 4 [ 39.429743][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.434932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.434932][ T7] Workqueue: 0x0 (events) [ 39.434932][ T7] Call Trace: [ 39.434932][ T7] dump_stack+0x172/0x1f0 [ 39.434932][ T7] __schedule+0xd03/0x1580 [ 39.434932][ T7] ? __sched_text_start+0x8/0x8 [ 39.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.434932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.434932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.434932][ T7] ? kthread_data+0x58/0xc0 [ 39.434932][ T7] schedule+0xa8/0x260 [ 39.434932][ T7] worker_thread+0x248/0xe40 [ 39.434932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.434932][ T7] kthread+0x354/0x420 [ 39.434932][ T7] ? process_one_work+0x1790/0x1790 [ 39.434932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.434932][ T7] ret_from_fork+0x24/0x30 [ 39.434992][ T2] mmdrop (____ptrval____) before 4 [ 39.444977][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.452041][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.454932][ T2] Call Trace: [ 39.454932][ T2] dump_stack+0x172/0x1f0 [ 39.454932][ T2] finish_task_switch+0x239/0x790 [ 39.454932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.454932][ T2] __schedule+0x7d3/0x1580 [ 39.454932][ T2] ? __sched_text_start+0x8/0x8 [ 39.454932][ T2] schedule+0xa8/0x260 [ 39.454932][ T2] kthreadd+0x5cc/0x740 [ 39.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.454932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.454932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.454932][ T2] ret_from_fork+0x24/0x30 [ 39.454981][ T2] mmgrab (____ptrval____) to 4 [ 39.459926][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.464932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.464932][ T2] Call Trace: [ 39.464932][ T2] dump_stack+0x172/0x1f0 [ 39.464932][ T2] __schedule+0xd03/0x1580 [ 39.464932][ T2] ? __sched_text_start+0x8/0x8 [ 39.464932][ T2] schedule+0xa8/0x260 [ 39.464932][ T2] kthreadd+0x5cc/0x740 [ 39.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.464932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.464932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.464932][ T2] ret_from_fork+0x24/0x30 [ 39.464964][ T1] mmdrop (____ptrval____) before 4 [ 39.474975][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.482089][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.484932][ T1] Call Trace: [ 39.484932][ T1] dump_stack+0x172/0x1f0 [ 39.484932][ T1] finish_task_switch+0x239/0x790 [ 39.484932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.484932][ T1] __schedule+0x7d3/0x1580 [ 39.484932][ T1] ? __sched_text_start+0x8/0x8 [ 39.484932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.484932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.484932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.484932][ T1] preempt_schedule+0x4b/0x60 [ 39.484932][ T1] ___preempt_schedule+0x16/0x18 [ 39.484932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.484932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.484932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.484932][ T1] ? kasan_check_read+0x11/0x20 [ 39.484932][ T1] wake_up_process+0x10/0x20 [ 39.484932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.484932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.484932][ T1] ? find_held_lock+0x35/0x130 [ 39.484932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.484932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.484932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.484932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.484932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.484932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.484932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.484932][ T1] alloc_workqueue+0x669/0xf00 [ 39.484932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.484932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.484932][ T1] ? cpumask_next+0x41/0x50 [ 39.484932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.484932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.484932][ T1] init_mm_internals+0x24/0x3c9 [ 39.484932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.484932][ T1] ? rest_init+0x37b/0x37b [ 39.484932][ T1] kernel_init+0x12/0x1c5 [ 39.484932][ T1] ret_from_fork+0x24/0x30 [ 39.484976][ T1] mmgrab (____ptrval____) to 4 [ 39.489894][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.494932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.494932][ T1] Call Trace: [ 39.494932][ T1] dump_stack+0x172/0x1f0 [ 39.494932][ T1] __schedule+0xd03/0x1580 [ 39.494932][ T1] ? __sched_text_start+0x8/0x8 [ 39.494932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.494932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.494932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.494932][ T1] preempt_schedule+0x4b/0x60 [ 39.494932][ T1] ___preempt_schedule+0x16/0x18 [ 39.494932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.494932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.494932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.494932][ T1] ? kasan_check_read+0x11/0x20 [ 39.494932][ T1] wake_up_process+0x10/0x20 [ 39.494932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.494932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.494932][ T1] ? find_held_lock+0x35/0x130 [ 39.494932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.494932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.494932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.494932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.494932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.494932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.494932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.494932][ T1] alloc_workqueue+0x669/0xf00 [ 39.494932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.494932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.494932][ T1] ? cpumask_next+0x41/0x50 [ 39.494932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.494932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.494932][ T1] init_mm_internals+0x24/0x3c9 [ 39.494932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.494932][ T1] ? rest_init+0x37b/0x37b [ 39.494932][ T1] kernel_init+0x12/0x1c5 [ 39.494932][ T1] ret_from_fork+0x24/0x30 [ 39.494961][ T8] mmdrop (____ptrval____) before 4 [ 39.500074][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.504932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.504932][ T8] Call Trace: [ 39.504932][ T8] dump_stack+0x172/0x1f0 [ 39.504932][ T8] finish_task_switch+0x239/0x790 [ 39.504932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.504932][ T8] __schedule+0x7d3/0x1580 [ 39.504932][ T8] ? __sched_text_start+0x8/0x8 [ 39.504932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.504932][ T8] schedule+0xa8/0x260 [ 39.504932][ T8] kthread+0x27a/0x420 [ 39.504932][ T8] ? process_one_work+0x1790/0x1790 [ 39.504932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.504932][ T8] ret_from_fork+0x24/0x30 [ 39.504973][ T8] mmgrab (____ptrval____) to 4 [ 39.509909][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.514932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.514932][ T8] Call Trace: [ 39.514932][ T8] dump_stack+0x172/0x1f0 [ 39.514932][ T8] __schedule+0xd03/0x1580 [ 39.514932][ T8] ? __sched_text_start+0x8/0x8 [ 39.514932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.514932][ T8] schedule+0xa8/0x260 [ 39.514932][ T8] kthread+0x27a/0x420 [ 39.514932][ T8] ? process_one_work+0x1790/0x1790 [ 39.514932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.514932][ T8] ret_from_fork+0x24/0x30 [ 39.514965][ T7] mmdrop (____ptrval____) before 4 [ 39.520299][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.524932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.524932][ T7] Workqueue: 0x0 (events) [ 39.524932][ T7] Call Trace: [ 39.524932][ T7] dump_stack+0x172/0x1f0 [ 39.524932][ T7] finish_task_switch+0x239/0x790 [ 39.524932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.524932][ T7] __schedule+0x7d3/0x1580 [ 39.524932][ T7] ? __sched_text_start+0x8/0x8 [ 39.524932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.524932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.524932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.524932][ T7] ? kthread_data+0x58/0xc0 [ 39.524932][ T7] schedule+0xa8/0x260 [ 39.524932][ T7] worker_thread+0x248/0xe40 [ 39.524932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.524932][ T7] kthread+0x354/0x420 [ 39.524932][ T7] ? process_one_work+0x1790/0x1790 [ 39.524932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.524932][ T7] ret_from_fork+0x24/0x30 [ 39.524974][ T7] mmgrab (____ptrval____) to 4 [ 39.529739][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.534932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.534932][ T7] Workqueue: 0x0 (events) [ 39.534932][ T7] Call Trace: [ 39.534932][ T7] dump_stack+0x172/0x1f0 [ 39.534932][ T7] __schedule+0xd03/0x1580 [ 39.534932][ T7] ? __sched_text_start+0x8/0x8 [ 39.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.534932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.534932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.534932][ T7] ? kthread_data+0x58/0xc0 [ 39.534932][ T7] schedule+0xa8/0x260 [ 39.534932][ T7] worker_thread+0x248/0xe40 [ 39.534932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.534932][ T7] kthread+0x354/0x420 [ 39.534932][ T7] ? process_one_work+0x1790/0x1790 [ 39.534932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.534932][ T7] ret_from_fork+0x24/0x30 [ 39.534965][ T2] mmdrop (____ptrval____) before 4 [ 39.544976][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.552103][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.554932][ T2] Call Trace: [ 39.554932][ T2] dump_stack+0x172/0x1f0 [ 39.554932][ T2] finish_task_switch+0x239/0x790 [ 39.554932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.554932][ T2] __schedule+0x7d3/0x1580 [ 39.554932][ T2] ? __sched_text_start+0x8/0x8 [ 39.554932][ T2] schedule+0xa8/0x260 [ 39.554932][ T2] kthreadd+0x5cc/0x740 [ 39.554932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.554932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.554932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.554932][ T2] ret_from_fork+0x24/0x30 [ 39.554978][ T2] mmgrab (____ptrval____) to 4 [ 39.559986][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.564932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.564932][ T2] Call Trace: [ 39.564932][ T2] dump_stack+0x172/0x1f0 [ 39.564932][ T2] __schedule+0xd03/0x1580 [ 39.564932][ T2] ? __sched_text_start+0x8/0x8 [ 39.564932][ T2] schedule+0xa8/0x260 [ 39.564932][ T2] kthreadd+0x5cc/0x740 [ 39.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.564932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.564932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.564932][ T2] ret_from_fork+0x24/0x30 [ 39.564963][ T8] mmdrop (____ptrval____) before 4 [ 39.574972][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.582605][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.584932][ T8] Call Trace: [ 39.584932][ T8] dump_stack+0x172/0x1f0 [ 39.584932][ T8] finish_task_switch+0x239/0x790 [ 39.584932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.584932][ T8] __schedule+0x7d3/0x1580 [ 39.584932][ T8] ? __sched_text_start+0x8/0x8 [ 39.584932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.584932][ T8] schedule+0xa8/0x260 [ 39.584932][ T8] kthread+0x27a/0x420 [ 39.584932][ T8] ? process_one_work+0x1790/0x1790 [ 39.584932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.584932][ T8] ret_from_fork+0x24/0x30 [ 39.584975][ T8] mmgrab (____ptrval____) to 4 [ 39.590018][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.594932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.594932][ T8] Call Trace: [ 39.594932][ T8] dump_stack+0x172/0x1f0 [ 39.594932][ T8] __schedule+0xd03/0x1580 [ 39.594932][ T8] ? __sched_text_start+0x8/0x8 [ 39.594932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.594932][ T8] schedule+0xa8/0x260 [ 39.594932][ T8] kthread+0x27a/0x420 [ 39.594932][ T8] ? process_one_work+0x1790/0x1790 [ 39.594932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.594932][ T8] ret_from_fork+0x24/0x30 [ 39.594962][ T1] mmdrop (____ptrval____) before 4 [ 39.604971][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.612175][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.614932][ T1] Call Trace: [ 39.614932][ T1] dump_stack+0x172/0x1f0 [ 39.614932][ T1] finish_task_switch+0x239/0x790 [ 39.614932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.614932][ T1] __schedule+0x7d3/0x1580 [ 39.614932][ T1] ? __sched_text_start+0x8/0x8 [ 39.614932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.614932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.614932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.614932][ T1] preempt_schedule+0x4b/0x60 [ 39.614932][ T1] ___preempt_schedule+0x16/0x18 [ 39.614932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.614932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.614932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.614932][ T1] ? kasan_check_read+0x11/0x20 [ 39.614932][ T1] wake_up_process+0x10/0x20 [ 39.614932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.614932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.614932][ T1] ? find_held_lock+0x35/0x130 [ 39.614932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.614932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.614932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.614932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.614932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.614932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.614932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.614932][ T1] alloc_workqueue+0x669/0xf00 [ 39.614932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.614932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.614932][ T1] ? cpumask_next+0x41/0x50 [ 39.614932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.614932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.614932][ T1] init_mm_internals+0x24/0x3c9 [ 39.614932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.614932][ T1] ? rest_init+0x37b/0x37b [ 39.614932][ T1] kernel_init+0x12/0x1c5 [ 39.614932][ T1] ret_from_fork+0x24/0x30 [ 39.614975][ T1] mmgrab (____ptrval____) to 4 [ 39.619808][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.624932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.624932][ T1] Call Trace: [ 39.624932][ T1] dump_stack+0x172/0x1f0 [ 39.624932][ T1] __schedule+0xd03/0x1580 [ 39.624932][ T1] ? __sched_text_start+0x8/0x8 [ 39.624932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.624932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.624932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.624932][ T1] preempt_schedule+0x4b/0x60 [ 39.624932][ T1] ___preempt_schedule+0x16/0x18 [ 39.624932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.624932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.624932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.624932][ T1] ? kasan_check_read+0x11/0x20 [ 39.624932][ T1] wake_up_process+0x10/0x20 [ 39.624932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.624932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.624932][ T1] ? find_held_lock+0x35/0x130 [ 39.624932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.624932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.624932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.624932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.624932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.624932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.624932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.624932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.624932][ T1] alloc_workqueue+0x669/0xf00 [ 39.624932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.624932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.624932][ T1] ? cpumask_next+0x41/0x50 [ 39.624932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.624932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.624932][ T1] init_mm_internals+0x24/0x3c9 [ 39.624932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.624932][ T1] ? rest_init+0x37b/0x37b [ 39.624932][ T1] kernel_init+0x12/0x1c5 [ 39.624932][ T1] ret_from_fork+0x24/0x30 [ 39.624976][ T7] mmdrop (____ptrval____) before 4 [ 39.630086][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.634932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.634932][ T7] Workqueue: 0x0 (events) [ 39.634932][ T7] Call Trace: [ 39.634932][ T7] dump_stack+0x172/0x1f0 [ 39.634932][ T7] finish_task_switch+0x239/0x790 [ 39.634932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.634932][ T7] __schedule+0x7d3/0x1580 [ 39.634932][ T7] ? __sched_text_start+0x8/0x8 [ 39.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.634932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.634932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.634932][ T7] ? kthread_data+0x58/0xc0 [ 39.634932][ T7] schedule+0xa8/0x260 [ 39.634932][ T7] worker_thread+0x248/0xe40 [ 39.634932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.634932][ T7] kthread+0x354/0x420 [ 39.634932][ T7] ? process_one_work+0x1790/0x1790 [ 39.634932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.634932][ T7] ret_from_fork+0x24/0x30 [ 39.634977][ T7] mmgrab (____ptrval____) to 4 [ 39.639744][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.644932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.644932][ T7] Workqueue: 0x0 (events) [ 39.644932][ T7] Call Trace: [ 39.644932][ T7] dump_stack+0x172/0x1f0 [ 39.644932][ T7] __schedule+0xd03/0x1580 [ 39.644932][ T7] ? __sched_text_start+0x8/0x8 [ 39.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.644932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.644932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.644932][ T7] ? kthread_data+0x58/0xc0 [ 39.644932][ T7] schedule+0xa8/0x260 [ 39.644932][ T7] worker_thread+0x248/0xe40 [ 39.644932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.644932][ T7] kthread+0x354/0x420 [ 39.644932][ T7] ? process_one_work+0x1790/0x1790 [ 39.644932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.644932][ T7] ret_from_fork+0x24/0x30 [ 39.644962][ T2] mmdrop (____ptrval____) before 4 [ 39.654965][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.662624][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.664932][ T2] Call Trace: [ 39.664932][ T2] dump_stack+0x172/0x1f0 [ 39.664932][ T2] finish_task_switch+0x239/0x790 [ 39.664932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.664932][ T2] __schedule+0x7d3/0x1580 [ 39.664932][ T2] ? __sched_text_start+0x8/0x8 [ 39.664932][ T2] schedule+0xa8/0x260 [ 39.664932][ T2] kthreadd+0x5cc/0x740 [ 39.664932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.664932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.664932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.664932][ T2] ret_from_fork+0x24/0x30 [ 39.664977][ T2] mmgrab (____ptrval____) to 4 [ 39.669915][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.674932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.674932][ T2] Call Trace: [ 39.674932][ T2] dump_stack+0x172/0x1f0 [ 39.674932][ T2] __schedule+0xd03/0x1580 [ 39.674932][ T2] ? __sched_text_start+0x8/0x8 [ 39.674932][ T2] schedule+0xa8/0x260 [ 39.674932][ T2] kthreadd+0x5cc/0x740 [ 39.674932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.674932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.674932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.674932][ T2] ret_from_fork+0x24/0x30 [ 39.674962][ T8] mmdrop (____ptrval____) before 4 [ 39.684962][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.693143][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.694932][ T8] Call Trace: [ 39.694932][ T8] dump_stack+0x172/0x1f0 [ 39.694932][ T8] finish_task_switch+0x239/0x790 [ 39.694932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.694932][ T8] __schedule+0x7d3/0x1580 [ 39.694932][ T8] ? __sched_text_start+0x8/0x8 [ 39.694932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.694932][ T8] schedule+0xa8/0x260 [ 39.694932][ T8] kthread+0x27a/0x420 [ 39.694932][ T8] ? process_one_work+0x1790/0x1790 [ 39.694932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.694932][ T8] ret_from_fork+0x24/0x30 [ 39.694977][ T8] mmgrab (____ptrval____) to 4 [ 39.699840][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.704932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.704932][ T8] Call Trace: [ 39.704932][ T8] dump_stack+0x172/0x1f0 [ 39.704932][ T8] __schedule+0xd03/0x1580 [ 39.704932][ T8] ? __sched_text_start+0x8/0x8 [ 39.704932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.704932][ T8] schedule+0xa8/0x260 [ 39.704932][ T8] kthread+0x27a/0x420 [ 39.704932][ T8] ? process_one_work+0x1790/0x1790 [ 39.704932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.704932][ T8] ret_from_fork+0x24/0x30 [ 39.704964][ T1] mmdrop (____ptrval____) before 4 [ 39.714972][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.722184][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.724932][ T1] Call Trace: [ 39.724932][ T1] dump_stack+0x172/0x1f0 [ 39.724932][ T1] finish_task_switch+0x239/0x790 [ 39.724932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.724932][ T1] __schedule+0x7d3/0x1580 [ 39.724932][ T1] ? __sched_text_start+0x8/0x8 [ 39.724932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.724932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.724932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.724932][ T1] preempt_schedule+0x4b/0x60 [ 39.724932][ T1] ___preempt_schedule+0x16/0x18 [ 39.724932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.724932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.724932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.724932][ T1] ? kasan_check_read+0x11/0x20 [ 39.724932][ T1] wake_up_process+0x10/0x20 [ 39.724932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.724932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.724932][ T1] ? find_held_lock+0x35/0x130 [ 39.724932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.724932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.724932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.724932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.724932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.724932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.724932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.724932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.724932][ T1] alloc_workqueue+0x669/0xf00 [ 39.724932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.724932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.724932][ T1] ? cpumask_next+0x41/0x50 [ 39.724932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.724932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.724932][ T1] init_mm_internals+0x24/0x3c9 [ 39.724932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.724932][ T1] ? rest_init+0x37b/0x37b [ 39.724932][ T1] kernel_init+0x12/0x1c5 [ 39.724932][ T1] ret_from_fork+0x24/0x30 [ 39.724975][ T1] mmgrab (____ptrval____) to 4 [ 39.729736][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.734932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.734932][ T1] Call Trace: [ 39.734932][ T1] dump_stack+0x172/0x1f0 [ 39.734932][ T1] __schedule+0xd03/0x1580 [ 39.734932][ T1] ? __sched_text_start+0x8/0x8 [ 39.734932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.734932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.734932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.734932][ T1] preempt_schedule+0x4b/0x60 [ 39.734932][ T1] ___preempt_schedule+0x16/0x18 [ 39.734932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.734932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.734932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.734932][ T1] ? kasan_check_read+0x11/0x20 [ 39.734932][ T1] wake_up_process+0x10/0x20 [ 39.734932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.734932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.734932][ T1] ? find_held_lock+0x35/0x130 [ 39.734932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.734932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.734932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.734932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.734932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.734932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.734932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.734932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.734932][ T1] alloc_workqueue+0x669/0xf00 [ 39.734932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.734932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.734932][ T1] ? cpumask_next+0x41/0x50 [ 39.734932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.734932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.734932][ T1] init_mm_internals+0x24/0x3c9 [ 39.734932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.734932][ T1] ? rest_init+0x37b/0x37b [ 39.734932][ T1] kernel_init+0x12/0x1c5 [ 39.734932][ T1] ret_from_fork+0x24/0x30 [ 39.734962][ T7] mmdrop (____ptrval____) before 4 [ 39.744990][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.752397][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.754932][ T7] Workqueue: 0x0 (events) [ 39.754932][ T7] Call Trace: [ 39.754932][ T7] dump_stack+0x172/0x1f0 [ 39.754932][ T7] finish_task_switch+0x239/0x790 [ 39.754932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.754932][ T7] __schedule+0x7d3/0x1580 [ 39.754932][ T7] ? __sched_text_start+0x8/0x8 [ 39.754932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.754932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.754932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.754932][ T7] ? kthread_data+0x58/0xc0 [ 39.754932][ T7] schedule+0xa8/0x260 [ 39.754932][ T7] worker_thread+0x248/0xe40 [ 39.754932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.754932][ T7] kthread+0x354/0x420 [ 39.754932][ T7] ? process_one_work+0x1790/0x1790 [ 39.754932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.754932][ T7] ret_from_fork+0x24/0x30 [ 39.754976][ T7] mmgrab (____ptrval____) to 4 [ 39.759743][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.764932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.764932][ T7] Workqueue: 0x0 (events) [ 39.764932][ T7] Call Trace: [ 39.764932][ T7] dump_stack+0x172/0x1f0 [ 39.764932][ T7] __schedule+0xd03/0x1580 [ 39.764932][ T7] ? __sched_text_start+0x8/0x8 [ 39.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.764932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.764932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.764932][ T7] ? kthread_data+0x58/0xc0 [ 39.764932][ T7] schedule+0xa8/0x260 [ 39.764932][ T7] worker_thread+0x248/0xe40 [ 39.764932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.764932][ T7] kthread+0x354/0x420 [ 39.764932][ T7] ? process_one_work+0x1790/0x1790 [ 39.764932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.764932][ T7] ret_from_fork+0x24/0x30 [ 39.764962][ T2] mmdrop (____ptrval____) before 4 [ 39.774968][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.782002][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.784932][ T2] Call Trace: [ 39.784932][ T2] dump_stack+0x172/0x1f0 [ 39.784932][ T2] finish_task_switch+0x239/0x790 [ 39.784932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.784932][ T2] __schedule+0x7d3/0x1580 [ 39.784932][ T2] ? __sched_text_start+0x8/0x8 [ 39.784932][ T2] schedule+0xa8/0x260 [ 39.784932][ T2] kthreadd+0x5cc/0x740 [ 39.784932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.784932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.784932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.784932][ T2] ret_from_fork+0x24/0x30 [ 39.784976][ T2] mmgrab (____ptrval____) to 4 [ 39.789942][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.794932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.794932][ T2] Call Trace: [ 39.794932][ T2] dump_stack+0x172/0x1f0 [ 39.794932][ T2] __schedule+0xd03/0x1580 [ 39.794932][ T2] ? __sched_text_start+0x8/0x8 [ 39.794932][ T2] schedule+0xa8/0x260 [ 39.794932][ T2] kthreadd+0x5cc/0x740 [ 39.794932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.794932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.794932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.794932][ T2] ret_from_fork+0x24/0x30 [ 39.794963][ T8] mmdrop (____ptrval____) before 4 [ 39.800160][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.804932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.804932][ T8] Call Trace: [ 39.804932][ T8] dump_stack+0x172/0x1f0 [ 39.804932][ T8] finish_task_switch+0x239/0x790 [ 39.804932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.804932][ T8] __schedule+0x7d3/0x1580 [ 39.804932][ T8] ? __sched_text_start+0x8/0x8 [ 39.804932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.804932][ T8] schedule+0xa8/0x260 [ 39.804932][ T8] kthread+0x27a/0x420 [ 39.804932][ T8] ? process_one_work+0x1790/0x1790 [ 39.804932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.804932][ T8] ret_from_fork+0x24/0x30 [ 39.804975][ T8] mmgrab (____ptrval____) to 4 [ 39.809743][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.814932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.814932][ T8] Call Trace: [ 39.814932][ T8] dump_stack+0x172/0x1f0 [ 39.814932][ T8] __schedule+0xd03/0x1580 [ 39.814932][ T8] ? __sched_text_start+0x8/0x8 [ 39.814932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.814932][ T8] schedule+0xa8/0x260 [ 39.814932][ T8] kthread+0x27a/0x420 [ 39.814932][ T8] ? process_one_work+0x1790/0x1790 [ 39.814932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.814932][ T8] ret_from_fork+0x24/0x30 [ 39.814964][ T1] mmdrop (____ptrval____) before 4 [ 39.820082][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.824932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.824932][ T1] Call Trace: [ 39.824932][ T1] dump_stack+0x172/0x1f0 [ 39.824932][ T1] finish_task_switch+0x239/0x790 [ 39.824932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.824932][ T1] __schedule+0x7d3/0x1580 [ 39.824932][ T1] ? __sched_text_start+0x8/0x8 [ 39.824932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.824932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.824932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.824932][ T1] preempt_schedule+0x4b/0x60 [ 39.824932][ T1] ___preempt_schedule+0x16/0x18 [ 39.824932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.824932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.824932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.824932][ T1] ? kasan_check_read+0x11/0x20 [ 39.824932][ T1] wake_up_process+0x10/0x20 [ 39.824932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.824932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.824932][ T1] ? find_held_lock+0x35/0x130 [ 39.824932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.824932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.824932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.824932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.824932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.824932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.824932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.824932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.824932][ T1] alloc_workqueue+0x669/0xf00 [ 39.824932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.824932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.824932][ T1] ? cpumask_next+0x41/0x50 [ 39.824932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.824932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.824932][ T1] init_mm_internals+0x24/0x3c9 [ 39.824932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.824932][ T1] ? rest_init+0x37b/0x37b [ 39.824932][ T1] kernel_init+0x12/0x1c5 [ 39.824932][ T1] ret_from_fork+0x24/0x30 [ 39.824974][ T1] mmgrab (____ptrval____) to 4 [ 39.829830][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.834932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.834932][ T1] Call Trace: [ 39.834932][ T1] dump_stack+0x172/0x1f0 [ 39.834932][ T1] __schedule+0xd03/0x1580 [ 39.834932][ T1] ? __sched_text_start+0x8/0x8 [ 39.834932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.834932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.834932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.834932][ T1] preempt_schedule+0x4b/0x60 [ 39.834932][ T1] ___preempt_schedule+0x16/0x18 [ 39.834932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.834932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.834932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.834932][ T1] ? kasan_check_read+0x11/0x20 [ 39.834932][ T1] wake_up_process+0x10/0x20 [ 39.834932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.834932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.834932][ T1] ? find_held_lock+0x35/0x130 [ 39.834932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.834932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.834932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.834932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.834932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.834932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.834932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.834932][ T1] alloc_workqueue+0x669/0xf00 [ 39.834932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.834932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.834932][ T1] ? cpumask_next+0x41/0x50 [ 39.834932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.834932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.834932][ T1] init_mm_internals+0x24/0x3c9 [ 39.834932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.834932][ T1] ? rest_init+0x37b/0x37b [ 39.834932][ T1] kernel_init+0x12/0x1c5 [ 39.834932][ T1] ret_from_fork+0x24/0x30 [ 39.834963][ T7] mmdrop (____ptrval____) before 4 [ 39.844983][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.852678][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.854932][ T7] Workqueue: 0x0 (events) [ 39.854932][ T7] Call Trace: [ 39.854932][ T7] dump_stack+0x172/0x1f0 [ 39.854932][ T7] finish_task_switch+0x239/0x790 [ 39.854932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.854932][ T7] __schedule+0x7d3/0x1580 [ 39.854932][ T7] ? __sched_text_start+0x8/0x8 [ 39.854932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.854932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.854932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.854932][ T7] ? kthread_data+0x58/0xc0 [ 39.854932][ T7] schedule+0xa8/0x260 [ 39.854932][ T7] worker_thread+0x248/0xe40 [ 39.854932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.854932][ T7] kthread+0x354/0x420 [ 39.854932][ T7] ? process_one_work+0x1790/0x1790 [ 39.854932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.854932][ T7] ret_from_fork+0x24/0x30 [ 39.854977][ T7] mmgrab (____ptrval____) to 4 [ 39.859814][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.864932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.864932][ T7] Workqueue: 0x0 (events) [ 39.864932][ T7] Call Trace: [ 39.864932][ T7] dump_stack+0x172/0x1f0 [ 39.864932][ T7] __schedule+0xd03/0x1580 [ 39.864932][ T7] ? __sched_text_start+0x8/0x8 [ 39.864932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.864932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.864932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.864932][ T7] ? kthread_data+0x58/0xc0 [ 39.864932][ T7] schedule+0xa8/0x260 [ 39.864932][ T7] worker_thread+0x248/0xe40 [ 39.864932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.864932][ T7] kthread+0x354/0x420 [ 39.864932][ T7] ? process_one_work+0x1790/0x1790 [ 39.864932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.864932][ T7] ret_from_fork+0x24/0x30 [ 39.864963][ T8] mmdrop (____ptrval____) before 4 [ 39.870691][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.874932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.874932][ T8] Call Trace: [ 39.874932][ T8] dump_stack+0x172/0x1f0 [ 39.874932][ T8] finish_task_switch+0x239/0x790 [ 39.874932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.874932][ T8] __schedule+0x7d3/0x1580 [ 39.874932][ T8] ? __sched_text_start+0x8/0x8 [ 39.874932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.874932][ T8] schedule+0xa8/0x260 [ 39.874932][ T8] kthread+0x27a/0x420 [ 39.874932][ T8] ? process_one_work+0x1790/0x1790 [ 39.874932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.874932][ T8] ret_from_fork+0x24/0x30 [ 39.874977][ T8] mmgrab (____ptrval____) to 4 [ 39.879787][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.884932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.884932][ T8] Call Trace: [ 39.884932][ T8] dump_stack+0x172/0x1f0 [ 39.884932][ T8] __schedule+0xd03/0x1580 [ 39.884932][ T8] ? __sched_text_start+0x8/0x8 [ 39.884932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.884932][ T8] schedule+0xa8/0x260 [ 39.884932][ T8] kthread+0x27a/0x420 [ 39.884932][ T8] ? process_one_work+0x1790/0x1790 [ 39.884932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.884932][ T8] ret_from_fork+0x24/0x30 [ 39.884963][ T1] mmdrop (____ptrval____) before 4 [ 39.894975][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.902245][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.904932][ T1] Call Trace: [ 39.904932][ T1] dump_stack+0x172/0x1f0 [ 39.904932][ T1] finish_task_switch+0x239/0x790 [ 39.904932][ T1] ? dump_stack+0x1de/0x1f0 [ 39.904932][ T1] __schedule+0x7d3/0x1580 [ 39.904932][ T1] ? __sched_text_start+0x8/0x8 [ 39.904932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.904932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.904932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.904932][ T1] preempt_schedule+0x4b/0x60 [ 39.904932][ T1] ___preempt_schedule+0x16/0x18 [ 39.904932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.904932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.904932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.904932][ T1] ? kasan_check_read+0x11/0x20 [ 39.904932][ T1] wake_up_process+0x10/0x20 [ 39.904932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.904932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.904932][ T1] ? find_held_lock+0x35/0x130 [ 39.904932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.904932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.904932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.904932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.904932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.904932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.904932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.904932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.904932][ T1] alloc_workqueue+0x669/0xf00 [ 39.904932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.904932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.904932][ T1] ? cpumask_next+0x41/0x50 [ 39.904932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.904932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.904932][ T1] init_mm_internals+0x24/0x3c9 [ 39.904932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.904932][ T1] ? rest_init+0x37b/0x37b [ 39.904932][ T1] kernel_init+0x12/0x1c5 [ 39.904932][ T1] ret_from_fork+0x24/0x30 [ 39.904976][ T1] mmgrab (____ptrval____) to 4 [ 39.910158][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 39.914932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.914932][ T1] Call Trace: [ 39.914932][ T1] dump_stack+0x172/0x1f0 [ 39.914932][ T1] __schedule+0xd03/0x1580 [ 39.914932][ T1] ? __sched_text_start+0x8/0x8 [ 39.914932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 39.914932][ T1] ? preempt_schedule+0x4b/0x60 [ 39.914932][ T1] preempt_schedule_common+0x4f/0xe0 [ 39.914932][ T1] preempt_schedule+0x4b/0x60 [ 39.914932][ T1] ___preempt_schedule+0x16/0x18 [ 39.914932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 39.914932][ T1] try_to_wake_up+0xc8/0x13f0 [ 39.914932][ T1] ? migrate_swap_stop+0x920/0x920 [ 39.914932][ T1] ? kasan_check_read+0x11/0x20 [ 39.914932][ T1] wake_up_process+0x10/0x20 [ 39.914932][ T1] __kthread_create_on_node+0x281/0x460 [ 39.914932][ T1] ? kthread_parkme+0xb0/0xb0 [ 39.914932][ T1] ? find_held_lock+0x35/0x130 [ 39.914932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.914932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 39.914932][ T1] kthread_create_on_node+0xbb/0xf0 [ 39.914932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 39.914932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 39.914932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 39.914932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.914932][ T1] init_rescuer.part.0+0x7d/0x190 [ 39.914932][ T1] alloc_workqueue+0x669/0xf00 [ 39.914932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 39.914932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 39.914932][ T1] ? cpumask_next+0x41/0x50 [ 39.914932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.914932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 39.914932][ T1] init_mm_internals+0x24/0x3c9 [ 39.914932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 39.914932][ T1] ? rest_init+0x37b/0x37b [ 39.914932][ T1] kernel_init+0x12/0x1c5 [ 39.914932][ T1] ret_from_fork+0x24/0x30 [ 39.914965][ T2] mmdrop (____ptrval____) before 4 [ 39.920097][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.924932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.924932][ T2] Call Trace: [ 39.924932][ T2] dump_stack+0x172/0x1f0 [ 39.924932][ T2] finish_task_switch+0x239/0x790 [ 39.924932][ T2] ? dump_stack+0x1de/0x1f0 [ 39.924932][ T2] __schedule+0x7d3/0x1580 [ 39.924932][ T2] ? __sched_text_start+0x8/0x8 [ 39.924932][ T2] schedule+0xa8/0x260 [ 39.924932][ T2] kthreadd+0x5cc/0x740 [ 39.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.924932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.924932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.924932][ T2] ret_from_fork+0x24/0x30 [ 39.924978][ T2] mmgrab (____ptrval____) to 4 [ 39.929749][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 39.934932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.934932][ T2] Call Trace: [ 39.934932][ T2] dump_stack+0x172/0x1f0 [ 39.934932][ T2] __schedule+0xd03/0x1580 [ 39.934932][ T2] ? __sched_text_start+0x8/0x8 [ 39.934932][ T2] schedule+0xa8/0x260 [ 39.934932][ T2] kthreadd+0x5cc/0x740 [ 39.934932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.934932][ T2] ? calculate_sigpending+0x87/0xa0 [ 39.934932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 39.934932][ T2] ret_from_fork+0x24/0x30 [ 39.934970][ T7] mmdrop (____ptrval____) before 4 [ 39.940970][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.944932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.944932][ T7] Workqueue: 0x0 (events) [ 39.944932][ T7] Call Trace: [ 39.944932][ T7] dump_stack+0x172/0x1f0 [ 39.944932][ T7] finish_task_switch+0x239/0x790 [ 39.944932][ T7] ? dump_stack+0x1de/0x1f0 [ 39.944932][ T7] __schedule+0x7d3/0x1580 [ 39.944932][ T7] ? __sched_text_start+0x8/0x8 [ 39.944932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.944932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.944932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.944932][ T7] ? kthread_data+0x58/0xc0 [ 39.944932][ T7] schedule+0xa8/0x260 [ 39.944932][ T7] worker_thread+0x248/0xe40 [ 39.944932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.944932][ T7] kthread+0x354/0x420 [ 39.944932][ T7] ? process_one_work+0x1790/0x1790 [ 39.944932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.944932][ T7] ret_from_fork+0x24/0x30 [ 39.944980][ T7] mmgrab (____ptrval____) to 4 [ 39.949839][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 39.954932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.954932][ T7] Workqueue: 0x0 (events) [ 39.954932][ T7] Call Trace: [ 39.954932][ T7] dump_stack+0x172/0x1f0 [ 39.954932][ T7] __schedule+0xd03/0x1580 [ 39.954932][ T7] ? __sched_text_start+0x8/0x8 [ 39.954932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.954932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 39.954932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.954932][ T7] ? kthread_data+0x58/0xc0 [ 39.954932][ T7] schedule+0xa8/0x260 [ 39.954932][ T7] worker_thread+0x248/0xe40 [ 39.954932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 39.954932][ T7] kthread+0x354/0x420 [ 39.954932][ T7] ? process_one_work+0x1790/0x1790 [ 39.954932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.954932][ T7] ret_from_fork+0x24/0x30 [ 39.954965][ T8] mmdrop (____ptrval____) before 4 [ 39.964972][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.972781][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.974932][ T8] Call Trace: [ 39.974932][ T8] dump_stack+0x172/0x1f0 [ 39.974932][ T8] finish_task_switch+0x239/0x790 [ 39.974932][ T8] ? dump_stack+0x1de/0x1f0 [ 39.974932][ T8] __schedule+0x7d3/0x1580 [ 39.974932][ T8] ? __sched_text_start+0x8/0x8 [ 39.974932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.974932][ T8] schedule+0xa8/0x260 [ 39.974932][ T8] kthread+0x27a/0x420 [ 39.974932][ T8] ? process_one_work+0x1790/0x1790 [ 39.974932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.974932][ T8] ret_from_fork+0x24/0x30 [ 39.974981][ T8] mmgrab (____ptrval____) to 4 [ 39.979847][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 39.984932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.984932][ T8] Call Trace: [ 39.984932][ T8] dump_stack+0x172/0x1f0 [ 39.984932][ T8] __schedule+0xd03/0x1580 [ 39.984932][ T8] ? __sched_text_start+0x8/0x8 [ 39.984932][ T8] ? ___preempt_schedule+0x16/0x18 [ 39.984932][ T8] schedule+0xa8/0x260 [ 39.984932][ T8] kthread+0x27a/0x420 [ 39.984932][ T8] ? process_one_work+0x1790/0x1790 [ 39.984932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 39.984932][ T8] ret_from_fork+0x24/0x30 [ 39.984963][ T2] mmdrop (____ptrval____) before 4 [ 39.994974][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.002474][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.004932][ T2] Call Trace: [ 40.004932][ T2] dump_stack+0x172/0x1f0 [ 40.004932][ T2] finish_task_switch+0x239/0x790 [ 40.004932][ T2] ? dump_stack+0x1de/0x1f0 [ 40.004932][ T2] __schedule+0x7d3/0x1580 [ 40.004932][ T2] ? __sched_text_start+0x8/0x8 [ 40.004932][ T2] schedule+0xa8/0x260 [ 40.004932][ T2] kthreadd+0x5cc/0x740 [ 40.004932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.004932][ T2] ? calculate_sigpending+0x87/0xa0 [ 40.004932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.004932][ T2] ret_from_fork+0x24/0x30 [ 40.004975][ T2] mmgrab (____ptrval____) to 4 [ 40.009897][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.014932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.014932][ T2] Call Trace: [ 40.014932][ T2] dump_stack+0x172/0x1f0 [ 40.014932][ T2] __schedule+0xd03/0x1580 [ 40.014932][ T2] ? __sched_text_start+0x8/0x8 [ 40.014932][ T2] schedule+0xa8/0x260 [ 40.014932][ T2] kthreadd+0x5cc/0x740 [ 40.014932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.014932][ T2] ? calculate_sigpending+0x87/0xa0 [ 40.014932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.014932][ T2] ret_from_fork+0x24/0x30 [ 40.014963][ T1] mmdrop (____ptrval____) before 4 [ 40.024974][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 40.032240][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.034932][ T1] Call Trace: [ 40.034932][ T1] dump_stack+0x172/0x1f0 [ 40.034932][ T1] finish_task_switch+0x239/0x790 [ 40.034932][ T1] ? dump_stack+0x1de/0x1f0 [ 40.034932][ T1] __schedule+0x7d3/0x1580 [ 40.034932][ T1] ? __sched_text_start+0x8/0x8 [ 40.034932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 40.034932][ T1] ? preempt_schedule+0x4b/0x60 [ 40.034932][ T1] preempt_schedule_common+0x4f/0xe0 [ 40.034932][ T1] preempt_schedule+0x4b/0x60 [ 40.034932][ T1] ___preempt_schedule+0x16/0x18 [ 40.034932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 40.034932][ T1] try_to_wake_up+0xc8/0x13f0 [ 40.034932][ T1] ? migrate_swap_stop+0x920/0x920 [ 40.034932][ T1] ? kasan_check_read+0x11/0x20 [ 40.034932][ T1] wake_up_process+0x10/0x20 [ 40.034932][ T1] __kthread_create_on_node+0x281/0x460 [ 40.034932][ T1] ? kthread_parkme+0xb0/0xb0 [ 40.034932][ T1] ? find_held_lock+0x35/0x130 [ 40.034932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.034932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 40.034932][ T1] kthread_create_on_node+0xbb/0xf0 [ 40.034932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 40.034932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 40.034932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 40.034932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.034932][ T1] init_rescuer.part.0+0x7d/0x190 [ 40.034932][ T1] alloc_workqueue+0x669/0xf00 [ 40.034932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.034932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 40.034932][ T1] ? cpumask_next+0x41/0x50 [ 40.034932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.034932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 40.034932][ T1] init_mm_internals+0x24/0x3c9 [ 40.034932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 40.034932][ T1] ? rest_init+0x37b/0x37b [ 40.034932][ T1] kernel_init+0x12/0x1c5 [ 40.034932][ T1] ret_from_fork+0x24/0x30 [ 40.034974][ T1] mmgrab (____ptrval____) to 4 [ 40.039898][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 40.044932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.044932][ T1] Call Trace: [ 40.044932][ T1] dump_stack+0x172/0x1f0 [ 40.044932][ T1] __schedule+0xd03/0x1580 [ 40.044932][ T1] ? __sched_text_start+0x8/0x8 [ 40.044932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 40.044932][ T1] ? preempt_schedule+0x4b/0x60 [ 40.044932][ T1] preempt_schedule_common+0x4f/0xe0 [ 40.044932][ T1] preempt_schedule+0x4b/0x60 [ 40.044932][ T1] ___preempt_schedule+0x16/0x18 [ 40.044932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 40.044932][ T1] try_to_wake_up+0xc8/0x13f0 [ 40.044932][ T1] ? migrate_swap_stop+0x920/0x920 [ 40.044932][ T1] ? kasan_check_read+0x11/0x20 [ 40.044932][ T1] wake_up_process+0x10/0x20 [ 40.044932][ T1] __kthread_create_on_node+0x281/0x460 [ 40.044932][ T1] ? kthread_parkme+0xb0/0xb0 [ 40.044932][ T1] ? find_held_lock+0x35/0x130 [ 40.044932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.044932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 40.044932][ T1] kthread_create_on_node+0xbb/0xf0 [ 40.044932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 40.044932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 40.044932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 40.044932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.044932][ T1] init_rescuer.part.0+0x7d/0x190 [ 40.044932][ T1] alloc_workqueue+0x669/0xf00 [ 40.044932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.044932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 40.044932][ T1] ? cpumask_next+0x41/0x50 [ 40.044932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.044932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 40.044932][ T1] init_mm_internals+0x24/0x3c9 [ 40.044932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 40.044932][ T1] ? rest_init+0x37b/0x37b [ 40.044932][ T1] kernel_init+0x12/0x1c5 [ 40.044932][ T1] ret_from_fork+0x24/0x30 [ 40.044968][ T7] mmdrop (____ptrval____) before 4 [ 40.050177][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.054932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.054932][ T7] Workqueue: 0x0 (events) [ 40.054932][ T7] Call Trace: [ 40.054932][ T7] dump_stack+0x172/0x1f0 [ 40.054932][ T7] finish_task_switch+0x239/0x790 [ 40.054932][ T7] ? dump_stack+0x1de/0x1f0 [ 40.054932][ T7] __schedule+0x7d3/0x1580 [ 40.054932][ T7] ? __sched_text_start+0x8/0x8 [ 40.054932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.054932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.054932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.054932][ T7] ? kthread_data+0x58/0xc0 [ 40.054932][ T7] schedule+0xa8/0x260 [ 40.054932][ T7] worker_thread+0x248/0xe40 [ 40.054932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.054932][ T7] kthread+0x354/0x420 [ 40.054932][ T7] ? process_one_work+0x1790/0x1790 [ 40.054932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.054932][ T7] ret_from_fork+0x24/0x30 [ 40.054976][ T7] mmgrab (____ptrval____) to 4 [ 40.060036][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.064932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.064932][ T7] Workqueue: 0x0 (events) [ 40.064932][ T7] Call Trace: [ 40.064932][ T7] dump_stack+0x172/0x1f0 [ 40.064932][ T7] __schedule+0xd03/0x1580 [ 40.064932][ T7] ? __sched_text_start+0x8/0x8 [ 40.064932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.064932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.064932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.064932][ T7] ? kthread_data+0x58/0xc0 [ 40.064932][ T7] schedule+0xa8/0x260 [ 40.064932][ T7] worker_thread+0x248/0xe40 [ 40.064932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.064932][ T7] kthread+0x354/0x420 [ 40.064932][ T7] ? process_one_work+0x1790/0x1790 [ 40.064932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.064932][ T7] ret_from_fork+0x24/0x30 [ 40.064965][ T8] mmdrop (____ptrval____) before 4 [ 40.074983][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 40.082360][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.084932][ T8] Call Trace: [ 40.084932][ T8] dump_stack+0x172/0x1f0 [ 40.084932][ T8] finish_task_switch+0x239/0x790 [ 40.084932][ T8] ? dump_stack+0x1de/0x1f0 [ 40.084932][ T8] __schedule+0x7d3/0x1580 [ 40.084932][ T8] ? __sched_text_start+0x8/0x8 [ 40.084932][ T8] ? ___preempt_schedule+0x16/0x18 [ 40.084932][ T8] schedule+0xa8/0x260 [ 40.084932][ T8] kthread+0x27a/0x420 [ 40.084932][ T8] ? process_one_work+0x1790/0x1790 [ 40.084932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.084932][ T8] ret_from_fork+0x24/0x30 [ 40.084975][ T8] mmgrab (____ptrval____) to 4 [ 40.090013][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 40.094932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.094932][ T8] Call Trace: [ 40.094932][ T8] dump_stack+0x172/0x1f0 [ 40.094932][ T8] __schedule+0xd03/0x1580 [ 40.094932][ T8] ? __sched_text_start+0x8/0x8 [ 40.094932][ T8] ? ___preempt_schedule+0x16/0x18 [ 40.094932][ T8] schedule+0xa8/0x260 [ 40.094932][ T8] kthread+0x27a/0x420 [ 40.094932][ T8] ? process_one_work+0x1790/0x1790 [ 40.094932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.094932][ T8] ret_from_fork+0x24/0x30 [ 40.094963][ T7] mmdrop (____ptrval____) before 4 [ 40.100087][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.104932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.104932][ T7] Workqueue: 0x0 (events) [ 40.104932][ T7] Call Trace: [ 40.104932][ T7] dump_stack+0x172/0x1f0 [ 40.104932][ T7] finish_task_switch+0x239/0x790 [ 40.104932][ T7] ? dump_stack+0x1de/0x1f0 [ 40.104932][ T7] __schedule+0x7d3/0x1580 [ 40.104932][ T7] ? __sched_text_start+0x8/0x8 [ 40.104932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.104932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.104932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.104932][ T7] ? kthread_data+0x58/0xc0 [ 40.104932][ T7] schedule+0xa8/0x260 [ 40.104932][ T7] worker_thread+0x248/0xe40 [ 40.104932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.104932][ T7] kthread+0x354/0x420 [ 40.104932][ T7] ? process_one_work+0x1790/0x1790 [ 40.104932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.104932][ T7] ret_from_fork+0x24/0x30 [ 40.104975][ T7] mmgrab (____ptrval____) to 4 [ 40.109776][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.114932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.114932][ T7] Workqueue: 0x0 (events) [ 40.114932][ T7] Call Trace: [ 40.114932][ T7] dump_stack+0x172/0x1f0 [ 40.114932][ T7] __schedule+0xd03/0x1580 [ 40.114932][ T7] ? __sched_text_start+0x8/0x8 [ 40.114932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.114932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.114932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.114932][ T7] ? kthread_data+0x58/0xc0 [ 40.114932][ T7] schedule+0xa8/0x260 [ 40.114932][ T7] worker_thread+0x248/0xe40 [ 40.114932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.114932][ T7] kthread+0x354/0x420 [ 40.114932][ T7] ? process_one_work+0x1790/0x1790 [ 40.114932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.114932][ T7] ret_from_fork+0x24/0x30 [ 40.114970][ T2] mmdrop (____ptrval____) before 4 [ 40.124967][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.132201][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.134932][ T2] Call Trace: [ 40.134932][ T2] dump_stack+0x172/0x1f0 [ 40.134932][ T2] finish_task_switch+0x239/0x790 [ 40.134932][ T2] ? dump_stack+0x1de/0x1f0 [ 40.134932][ T2] __schedule+0x7d3/0x1580 [ 40.134932][ T2] ? __sched_text_start+0x8/0x8 [ 40.134932][ T2] schedule+0xa8/0x260 [ 40.134932][ T2] kthreadd+0x5cc/0x740 [ 40.134932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.134932][ T2] ? calculate_sigpending+0x87/0xa0 [ 40.134932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.134932][ T2] ret_from_fork+0x24/0x30 [ 40.135010][ T2] mmgrab (____ptrval____) to 4 [ 40.140089][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.144932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.144932][ T2] Call Trace: [ 40.144932][ T2] dump_stack+0x172/0x1f0 [ 40.144932][ T2] __schedule+0xd03/0x1580 [ 40.144932][ T2] ? __sched_text_start+0x8/0x8 [ 40.144932][ T2] schedule+0xa8/0x260 [ 40.144932][ T2] kthreadd+0x5cc/0x740 [ 40.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.144932][ T2] ? calculate_sigpending+0x87/0xa0 [ 40.144932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.144932][ T2] ret_from_fork+0x24/0x30 [ 40.144964][ T1] mmdrop (____ptrval____) before 4 [ 40.154964][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 40.163948][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.164932][ T1] Call Trace: [ 40.164932][ T1] dump_stack+0x172/0x1f0 [ 40.164932][ T1] finish_task_switch+0x239/0x790 [ 40.164932][ T1] ? dump_stack+0x1de/0x1f0 [ 40.164932][ T1] __schedule+0x7d3/0x1580 [ 40.164932][ T1] ? __sched_text_start+0x8/0x8 [ 40.164932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 40.164932][ T1] ? preempt_schedule+0x4b/0x60 [ 40.164932][ T1] preempt_schedule_common+0x4f/0xe0 [ 40.164932][ T1] preempt_schedule+0x4b/0x60 [ 40.164932][ T1] ___preempt_schedule+0x16/0x18 [ 40.164932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 40.164932][ T1] try_to_wake_up+0xc8/0x13f0 [ 40.164932][ T1] ? migrate_swap_stop+0x920/0x920 [ 40.164932][ T1] ? kasan_check_read+0x11/0x20 [ 40.164932][ T1] wake_up_process+0x10/0x20 [ 40.164932][ T1] __kthread_create_on_node+0x281/0x460 [ 40.164932][ T1] ? kthread_parkme+0xb0/0xb0 [ 40.164932][ T1] ? find_held_lock+0x35/0x130 [ 40.164932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.164932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 40.164932][ T1] kthread_create_on_node+0xbb/0xf0 [ 40.164932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 40.164932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 40.164932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 40.164932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.164932][ T1] init_rescuer.part.0+0x7d/0x190 [ 40.164932][ T1] alloc_workqueue+0x669/0xf00 [ 40.164932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.164932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 40.164932][ T1] ? cpumask_next+0x41/0x50 [ 40.164932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.164932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 40.164932][ T1] init_mm_internals+0x24/0x3c9 [ 40.164932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 40.164932][ T1] ? rest_init+0x37b/0x37b [ 40.164932][ T1] kernel_init+0x12/0x1c5 [ 40.164932][ T1] ret_from_fork+0x24/0x30 [ 40.164976][ T1] mmgrab (____ptrval____) to 4 [ 40.169921][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 40.174932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.174932][ T1] Call Trace: [ 40.174932][ T1] dump_stack+0x172/0x1f0 [ 40.174932][ T1] __schedule+0xd03/0x1580 [ 40.174932][ T1] ? __sched_text_start+0x8/0x8 [ 40.174932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 40.174932][ T1] ? preempt_schedule+0x4b/0x60 [ 40.174932][ T1] preempt_schedule_common+0x4f/0xe0 [ 40.174932][ T1] preempt_schedule+0x4b/0x60 [ 40.174932][ T1] ___preempt_schedule+0x16/0x18 [ 40.174932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 40.174932][ T1] try_to_wake_up+0xc8/0x13f0 [ 40.174932][ T1] ? migrate_swap_stop+0x920/0x920 [ 40.174932][ T1] ? kasan_check_read+0x11/0x20 [ 40.174932][ T1] wake_up_process+0x10/0x20 [ 40.174932][ T1] __kthread_create_on_node+0x281/0x460 [ 40.174932][ T1] ? kthread_parkme+0xb0/0xb0 [ 40.174932][ T1] ? find_held_lock+0x35/0x130 [ 40.174932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.174932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 40.174932][ T1] kthread_create_on_node+0xbb/0xf0 [ 40.174932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 40.174932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 40.174932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 40.174932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.174932][ T1] init_rescuer.part.0+0x7d/0x190 [ 40.174932][ T1] alloc_workqueue+0x669/0xf00 [ 40.174932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.174932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 40.174932][ T1] ? cpumask_next+0x41/0x50 [ 40.174932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.174932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 40.174932][ T1] init_mm_internals+0x24/0x3c9 [ 40.174932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 40.174932][ T1] ? rest_init+0x37b/0x37b [ 40.174932][ T1] kernel_init+0x12/0x1c5 [ 40.174932][ T1] ret_from_fork+0x24/0x30 [ 40.174961][ T7] mmdrop (____ptrval____) before 4 [ 40.180248][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.184932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.184932][ T7] Workqueue: 0x0 (events) [ 40.184932][ T7] Call Trace: [ 40.184932][ T7] dump_stack+0x172/0x1f0 [ 40.184932][ T7] finish_task_switch+0x239/0x790 [ 40.184932][ T7] ? dump_stack+0x1de/0x1f0 [ 40.184932][ T7] __schedule+0x7d3/0x1580 [ 40.184932][ T7] ? __sched_text_start+0x8/0x8 [ 40.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.184932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.184932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.184932][ T7] ? kthread_data+0x58/0xc0 [ 40.184932][ T7] schedule+0xa8/0x260 [ 40.184932][ T7] worker_thread+0x248/0xe40 [ 40.184932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.184932][ T7] kthread+0x354/0x420 [ 40.184932][ T7] ? process_one_work+0x1790/0x1790 [ 40.184932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.184932][ T7] ret_from_fork+0x24/0x30 [ 40.184975][ T7] mmgrab (____ptrval____) to 4 [ 40.189838][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.194932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.194932][ T7] Workqueue: 0x0 (events) [ 40.194932][ T7] Call Trace: [ 40.194932][ T7] dump_stack+0x172/0x1f0 [ 40.194932][ T7] __schedule+0xd03/0x1580 [ 40.194932][ T7] ? __sched_text_start+0x8/0x8 [ 40.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.194932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.194932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.194932][ T7] ? kthread_data+0x58/0xc0 [ 40.194932][ T7] schedule+0xa8/0x260 [ 40.194932][ T7] worker_thread+0x248/0xe40 [ 40.194932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.194932][ T7] kthread+0x354/0x420 [ 40.194932][ T7] ? process_one_work+0x1790/0x1790 [ 40.194932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.194932][ T7] ret_from_fork+0x24/0x30 [ 40.194962][ T8] mmdrop (____ptrval____) before 4 [ 40.200371][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 40.204932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.204932][ T8] Call Trace: [ 40.204932][ T8] dump_stack+0x172/0x1f0 [ 40.204932][ T8] finish_task_switch+0x239/0x790 [ 40.204932][ T8] ? dump_stack+0x1de/0x1f0 [ 40.204932][ T8] __schedule+0x7d3/0x1580 [ 40.204932][ T8] ? __sched_text_start+0x8/0x8 [ 40.204932][ T8] ? ___preempt_schedule+0x16/0x18 [ 40.204932][ T8] schedule+0xa8/0x260 [ 40.204932][ T8] kthread+0x27a/0x420 [ 40.204932][ T8] ? process_one_work+0x1790/0x1790 [ 40.204932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.204932][ T8] ret_from_fork+0x24/0x30 [ 40.204976][ T8] mmgrab (____ptrval____) to 4 [ 40.209956][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 40.214932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.214932][ T8] Call Trace: [ 40.214932][ T8] dump_stack+0x172/0x1f0 [ 40.214932][ T8] __schedule+0xd03/0x1580 [ 40.214932][ T8] ? __sched_text_start+0x8/0x8 [ 40.214932][ T8] ? ___preempt_schedule+0x16/0x18 [ 40.214932][ T8] schedule+0xa8/0x260 [ 40.214932][ T8] kthread+0x27a/0x420 [ 40.214932][ T8] ? process_one_work+0x1790/0x1790 [ 40.214932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.214932][ T8] ret_from_fork+0x24/0x30 [ 40.214963][ T2] mmdrop (____ptrval____) before 4 [ 40.224976][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.232212][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.234932][ T2] Call Trace: [ 40.234932][ T2] dump_stack+0x172/0x1f0 [ 40.234932][ T2] finish_task_switch+0x239/0x790 [ 40.234932][ T2] ? dump_stack+0x1de/0x1f0 [ 40.234932][ T2] __schedule+0x7d3/0x1580 [ 40.234932][ T2] ? __sched_text_start+0x8/0x8 [ 40.234932][ T2] schedule+0xa8/0x260 [ 40.234932][ T2] kthreadd+0x5cc/0x740 [ 40.234932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.234932][ T2] ? calculate_sigpending+0x87/0xa0 [ 40.234932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.234932][ T2] ret_from_fork+0x24/0x30 [ 40.235024][ T2] mmgrab (____ptrval____) to 4 [ 40.239926][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.244932][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.244932][ T2] Call Trace: [ 40.244932][ T2] dump_stack+0x172/0x1f0 [ 40.244932][ T2] __schedule+0xd03/0x1580 [ 40.244932][ T2] ? __sched_text_start+0x8/0x8 [ 40.244932][ T2] schedule+0xa8/0x260 [ 40.244932][ T2] kthreadd+0x5cc/0x740 [ 40.244932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.244932][ T2] ? calculate_sigpending+0x87/0xa0 [ 40.244932][ T2] ? kthread_create_on_cpu+0x1f0/0x1f0 [ 40.244932][ T2] ret_from_fork+0x24/0x30 [ 40.244974][ T1] mmdrop (____ptrval____) before 4 [ 40.254967][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 40.262365][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.264932][ T1] Call Trace: [ 40.264932][ T1] dump_stack+0x172/0x1f0 [ 40.264932][ T1] finish_task_switch+0x239/0x790 [ 40.264932][ T1] ? dump_stack+0x1de/0x1f0 [ 40.264932][ T1] __schedule+0x7d3/0x1580 [ 40.264932][ T1] ? __sched_text_start+0x8/0x8 [ 40.264932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 40.264932][ T1] ? preempt_schedule+0x4b/0x60 [ 40.264932][ T1] preempt_schedule_common+0x4f/0xe0 [ 40.264932][ T1] preempt_schedule+0x4b/0x60 [ 40.264932][ T1] ___preempt_schedule+0x16/0x18 [ 40.264932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 40.264932][ T1] try_to_wake_up+0xc8/0x13f0 [ 40.264932][ T1] ? migrate_swap_stop+0x920/0x920 [ 40.264932][ T1] ? kasan_check_read+0x11/0x20 [ 40.264932][ T1] wake_up_process+0x10/0x20 [ 40.264932][ T1] __kthread_create_on_node+0x281/0x460 [ 40.264932][ T1] ? kthread_parkme+0xb0/0xb0 [ 40.264932][ T1] ? find_held_lock+0x35/0x130 [ 40.264932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.264932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 40.264932][ T1] kthread_create_on_node+0xbb/0xf0 [ 40.264932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 40.264932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 40.264932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 40.264932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.264932][ T1] init_rescuer.part.0+0x7d/0x190 [ 40.264932][ T1] alloc_workqueue+0x669/0xf00 [ 40.264932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.264932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 40.264932][ T1] ? cpumask_next+0x41/0x50 [ 40.264932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.264932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 40.264932][ T1] init_mm_internals+0x24/0x3c9 [ 40.264932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 40.264932][ T1] ? rest_init+0x37b/0x37b [ 40.264932][ T1] kernel_init+0x12/0x1c5 [ 40.264932][ T1] ret_from_fork+0x24/0x30 [ 40.264975][ T1] mmgrab (____ptrval____) to 4 [ 40.270037][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc2+ #1 [ 40.274932][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.274932][ T1] Call Trace: [ 40.274932][ T1] dump_stack+0x172/0x1f0 [ 40.274932][ T1] __schedule+0xd03/0x1580 [ 40.274932][ T1] ? __sched_text_start+0x8/0x8 [ 40.274932][ T1] ? try_to_wake_up+0xc8/0x13f0 [ 40.274932][ T1] ? preempt_schedule+0x4b/0x60 [ 40.274932][ T1] preempt_schedule_common+0x4f/0xe0 [ 40.274932][ T1] preempt_schedule+0x4b/0x60 [ 40.274932][ T1] ___preempt_schedule+0x16/0x18 [ 40.274932][ T1] _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 40.274932][ T1] try_to_wake_up+0xc8/0x13f0 [ 40.274932][ T1] ? migrate_swap_stop+0x920/0x920 [ 40.274932][ T1] ? kasan_check_read+0x11/0x20 [ 40.274932][ T1] wake_up_process+0x10/0x20 [ 40.274932][ T1] __kthread_create_on_node+0x281/0x460 [ 40.274932][ T1] ? kthread_parkme+0xb0/0xb0 [ 40.274932][ T1] ? find_held_lock+0x35/0x130 [ 40.274932][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.274932][ T1] ? cancel_delayed_work+0x2d0/0x2d0 [ 40.274932][ T1] kthread_create_on_node+0xbb/0xf0 [ 40.274932][ T1] ? __kthread_create_on_node+0x460/0x460 [ 40.274932][ T1] ? kmem_cache_alloc_node_trace+0x34f/0x720 [ 40.274932][ T1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 40.274932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.274932][ T1] init_rescuer.part.0+0x7d/0x190 [ 40.274932][ T1] alloc_workqueue+0x669/0xf00 [ 40.274932][ T1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 40.274932][ T1] ? workqueue_sysfs_register+0x3f0/0x3f0 [ 40.274932][ T1] ? cpumask_next+0x41/0x50 [ 40.274932][ T1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.274932][ T1] ? wq_watchdog_reset_touched+0x116/0x180 [ 40.274932][ T1] init_mm_internals+0x24/0x3c9 [ 40.274932][ T1] kernel_init_freeable+0x2c5/0x5c3 [ 40.274932][ T1] ? rest_init+0x37b/0x37b [ 40.274932][ T1] kernel_init+0x12/0x1c5 [ 40.274932][ T1] ret_from_fork+0x24/0x30 [ 40.274962][ T7] mmdrop (____ptrval____) before 4 [ 40.284974][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.293165][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.294932][ T7] Workqueue: 0x0 (events) [ 40.294932][ T7] Call Trace: [ 40.294932][ T7] dump_stack+0x172/0x1f0 [ 40.294932][ T7] finish_task_switch+0x239/0x790 [ 40.294932][ T7] ? dump_stack+0x1de/0x1f0 [ 40.294932][ T7] __schedule+0x7d3/0x1580 [ 40.294932][ T7] ? __sched_text_start+0x8/0x8 [ 40.294932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.294932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.294932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.294932][ T7] ? kthread_data+0x58/0xc0 [ 40.294932][ T7] schedule+0xa8/0x260 [ 40.294932][ T7] worker_thread+0x248/0xe40 [ 40.294932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.294932][ T7] kthread+0x354/0x420 [ 40.294932][ T7] ? process_one_work+0x1790/0x1790 [ 40.294932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.294932][ T7] ret_from_fork+0x24/0x30 [ 40.294980][ T7] mmgrab (____ptrval____) to 4 [ 40.300165][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.2.0-rc2+ #1 [ 40.304932][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.304932][ T7] Workqueue: 0x0 (events) [ 40.304932][ T7] Call Trace: [ 40.304932][ T7] dump_stack+0x172/0x1f0 [ 40.304932][ T7] __schedule+0xd03/0x1580 [ 40.304932][ T7] ? __sched_text_start+0x8/0x8 [ 40.304932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.304932][ T7] ? _raw_spin_unlock_irq+0x28/0x90 [ 40.304932][ T7] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.304932][ T7] ? kthread_data+0x58/0xc0 [ 40.304932][ T7] schedule+0xa8/0x260 [ 40.304932][ T7] worker_thread+0x248/0xe40 [ 40.304932][ T7] ? trace_hardirqs_on+0x67/0x220 [ 40.304932][ T7] kthread+0x354/0x420 [ 40.304932][ T7] ? process_one_work+0x1790/0x1790 [ 40.304932][ T7] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.304932][ T7] ret_from_fork+0x24/0x30 [ 40.304967][ T8] mmdrop (____ptrval____) before 4 [ 40.310087][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 40.314932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.314932][ T8] Call Trace: [ 40.314932][ T8] dump_stack+0x172/0x1f0 [ 40.314932][ T8] finish_task_switch+0x239/0x790 [ 40.314932][ T8] ? dump_stack+0x1de/0x1f0 [ 40.314932][ T8] __schedule+0x7d3/0x1580 [ 40.314932][ T8] ? __sched_text_start+0x8/0x8 [ 40.314932][ T8] ? ___preempt_schedule+0x16/0x18 [ 40.314932][ T8] schedule+0xa8/0x260 [ 40.314932][ T8] kthread+0x27a/0x420 [ 40.314932][ T8] ? process_one_work+0x1790/0x1790 [ 40.314932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.314932][ T8] ret_from_fork+0x24/0x30 [ 40.314976][ T8] mmgrab (____ptrval____) to 4 [ 40.319745][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.2.0-rc2+ #1 [ 40.324932][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.324932][ T8] Call Trace: [ 40.324932][ T8] dump_stack+0x172/0x1f0 [ 40.324932][ T8] __schedule+0xd03/0x1580 [ 40.324932][ T8] ? __sched_text_start+0x8/0x8 [ 40.324932][ T8] ? ___preempt_schedule+0x16/0x18 [ 40.324932][ T8] schedule+0xa8/0x260 [ 40.324932][ T8] kthread+0x27a/0x420 [ 40.324932][ T8] ? process_one_work+0x1790/0x1790 [ 40.324932][ T8] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 40.324932][ T8] ret_from_fork+0x24/0x30 [ 40.325021][ T2] mmdrop (____ptrval____) before 4 [ 40.330391][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc2+ #1 [ 40.334932][ T2] Hardware name: Google Google Compute Engine/Google Compute E