================================================================== kasan: CONFIG_KASAN_INLINE enabled BUG: KASAN: stack-out-of-bounds in pgd_val arch/x86/include/asm/paravirt.h:414 [inline] BUG: KASAN: stack-out-of-bounds in p4d_page_vaddr arch/x86/include/asm/pgtable.h:895 [inline] BUG: KASAN: stack-out-of-bounds in pud_offset arch/x86/include/asm/pgtable.h:907 [inline] BUG: KASAN: stack-out-of-bounds in vmalloc_fault+0x6d0/0x770 arch/x86/mm/fault.c:397 kasan: GPF could be caused by NULL-ptr deref or user memory access Read of size 8 at addr ffff8881da96cff8 by task kworker/u4:3/456 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 20605 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #323 CPU: 1 PID: 456 Comm: kworker/u4:3 Not tainted 4.20.0-rc4+ #323 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vmalloc_fault+0x426/0x770 arch/x86/mm/fault.c:405 Workqueue: netns cleanup_net ------------[ cut here ]------------ Call Trace: Bad or missing usercopy whitelist? Kernel memory overwrite attempt detected to SLAB object '' (offset 18446744069414924093, size 2)! WARNING: CPU: 0 PID: 20605 at mm/usercopy.c:83 usercopy_warn+0xee/0x110 mm/usercopy.c:78 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 Kernel panic - not syncing: panic_on_warn set ... print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 pgd_val arch/x86/include/asm/paravirt.h:414 [inline] p4d_page_vaddr arch/x86/include/asm/pgtable.h:895 [inline] pud_offset arch/x86/include/asm/pgtable.h:907 [inline] vmalloc_fault+0x6d0/0x770 arch/x86/mm/fault.c:397 do_kern_addr_fault arch/x86/mm/fault.c:1203 [inline] __do_page_fault+0x860/0xe60 arch/x86/mm/fault.c:1487 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139 RIP: 0010:raw_write_seqcount_begin include/linux/seqlock.h:228 [inline] RIP: 0010:write_seqcount_begin_nested include/linux/seqlock.h:376 [inline] RIP: 0010:write_seqcount_begin include/linux/seqlock.h:382 [inline] RIP: 0010:psi_group_change kernel/sched/psi.c:449 [inline] RIP: 0010:psi_task_change+0x216/0x5f0 kernel/sched/psi.c:522 Code: 00 4a 03 1c e5 20 70 27 89 48 89 d8 48 c1 e8 03 42 0f b6 14 18 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 0a 03 00 00 <83> 03 01 48 8d 43 08 45 31 c9 31 c9 48 89 c7 31 d2 31 f6 48 89 45 RSP: 0018:ffff8881daf074c0 EFLAGS: 00010046 RAX: 0000000000000003 RBX: ffffe8ffffc8a6c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff89277020 RBP: ffff8881daf07538 R08: 0000000000000004 R09: 0000000000000001 R10: ffffed103b5e5b67 R11: dffffc0000000000 R12: 0000000000000000 R13: 0000000000000008 R14: 00000000012ed358 R15: ffff888194e08400 psi_dequeue kernel/sched/stats.h:100 [inline] dequeue_task kernel/sched/core.c:740 [inline] deactivate_task+0x29d/0x3d0 kernel/sched/core.c:759 detach_task.isra.91+0xa9/0x150 kernel/sched/fair.c:7185 detach_tasks kernel/sched/fair.c:7273 [inline] load_balance+0x1077/0x39a0 kernel/sched/fair.c:8731 rebalance_domains+0x845/0xdc0 kernel/sched/fair.c:9109 run_rebalance_domains+0x38d/0x500 kernel/sched/fair.c:9731 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804 RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:167 [inline] RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline] RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline] RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline] RIP: 0010:check_memory_region+0x10d/0x1b0 mm/kasan/kasan.c:267 Code: 41 80 38 00 74 ee 4b 8d 44 0d 00 4d 85 c0 75 3e 4d 89 e0 49 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df <4d> 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 4c 39 RSP: 0018:ffff8881d8a77240 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000001 RBX: 1ffff1103b5e5b67 RCX: ffffffff816a7182 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881daf2db38 RBP: ffff8881d8a77258 R08: 0000000000000001 R09: ffffed103b5e5b67 R10: ffffed103b5e5b67 R11: ffff8881daf2db3b R12: ffffed103b5e5b68 R13: ffff8881d8a772e0 R14: ffff8881daf2db38 R15: ffff8881d8a774a8 kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906 rcu_read_unlock include/linux/rcupdate.h:657 [inline] inet_twsk_purge+0x731/0x870 net/ipv4/inet_timewait_sock.c:298 dccp_v4_exit_batch+0x1a/0x20 net/dccp/ipv4.c:1033 ops_exit_list.isra.5+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 The buggy address belongs to the page: page:ffffea00076a5b00 count:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x2fffc0000000000() raw: 02fffc0000000000 dead000000000100 dead000000000200 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881da96ce80: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 ffff8881da96cf00: f1 00 f2 f2 f2 f2 f2 f2 f2 f8 f2 f2 f2 00 00 00 >ffff8881da96cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 ^ ffff8881da96d000: f1 f8 f2 f2 f2 00 00 00 00 00 00 00 00 00 00 00 ffff8881da96d080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access Shutting down cpus with NMI Kernel Offset: disabled ====================================================== WARNING: possible circular locking dependency detected 4.20.0-rc4+ #323 Not tainted ------------------------------------------------------ kworker/u4:3/456 is trying to acquire lock: 000000008795846b ((console_sem).lock){-.-.}, at: down_trylock+0x13/0x70 kernel/locking/semaphore.c:136 but task is already holding lock: 000000002de88619 (report_lock){..-.}, at: kasan_start_report mm/kasan/report.c:170 [inline] 000000002de88619 (report_lock){..-.}, at: kasan_report_error mm/kasan/report.c:346 [inline] 000000002de88619 (report_lock){..-.}, at: kasan_report+0x8b/0x110 mm/kasan/report.c:412 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (report_lock){..-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152 kasan_start_report mm/kasan/report.c:170 [inline] kasan_report_error mm/kasan/report.c:346 [inline] kasan_report+0x8b/0x110 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 pgd_val arch/x86/include/asm/paravirt.h:414 [inline] p4d_page_vaddr arch/x86/include/asm/pgtable.h:895 [inline] pud_offset arch/x86/include/asm/pgtable.h:907 [inline] vmalloc_fault+0x6d0/0x770 arch/x86/mm/fault.c:397 do_kern_addr_fault arch/x86/mm/fault.c:1203 [inline] __do_page_fault+0x860/0xe60 arch/x86/mm/fault.c:1487 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139 raw_write_seqcount_begin include/linux/seqlock.h:228 [inline] write_seqcount_begin_nested include/linux/seqlock.h:376 [inline] write_seqcount_begin include/linux/seqlock.h:382 [inline] psi_group_change kernel/sched/psi.c:449 [inline] psi_task_change+0x216/0x5f0 kernel/sched/psi.c:522 psi_dequeue kernel/sched/stats.h:100 [inline] dequeue_task kernel/sched/core.c:740 [inline] deactivate_task+0x29d/0x3d0 kernel/sched/core.c:759 detach_task.isra.91+0xa9/0x150 kernel/sched/fair.c:7185 detach_tasks kernel/sched/fair.c:7273 [inline] load_balance+0x1077/0x39a0 kernel/sched/fair.c:8731 rebalance_domains+0x845/0xdc0 kernel/sched/fair.c:9109 run_rebalance_domains+0x38d/0x500 kernel/sched/fair.c:9731 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804 bytes_is_nonzero mm/kasan/kasan.c:167 [inline] memory_is_nonzero mm/kasan/kasan.c:184 [inline] memory_is_poisoned_n mm/kasan/kasan.c:210 [inline] memory_is_poisoned mm/kasan/kasan.c:241 [inline] check_memory_region_inline mm/kasan/kasan.c:257 [inline] check_memory_region+0x10d/0x1b0 mm/kasan/kasan.c:267 kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906 rcu_read_unlock include/linux/rcupdate.h:657 [inline] inet_twsk_purge+0x731/0x870 net/ipv4/inet_timewait_sock.c:298 dccp_v4_exit_batch+0x1a/0x20 net/dccp/ipv4.c:1033 ops_exit_list.isra.5+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 -> #2 (&rq->lock){-.-.}: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 rq_lock kernel/sched/sched.h:1126 [inline] task_fork_fair+0xb0/0x6d0 kernel/sched/fair.c:9802 sched_fork+0x443/0xba0 kernel/sched/core.c:2359 copy_process+0x25b8/0x87a0 kernel/fork.c:1887 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 kernel_thread+0x34/0x40 kernel/fork.c:2275 rest_init+0x28/0x372 init/main.c:409 arch_call_rest_init+0xe/0x1b start_kernel+0x9f0/0xa2b init/main.c:745 x86_64_start_reservations+0x2e/0x30 arch/x86/kernel/head64.c:472 x86_64_start_kernel+0x76/0x79 arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #1 (&p->pi_lock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152 try_to_wake_up+0xdc/0x1490 kernel/sched/core.c:1965 wake_up_process+0x10/0x20 kernel/sched/core.c:2129 __up.isra.1+0x1c0/0x2a0 kernel/locking/semaphore.c:262 up+0x13c/0x1c0 kernel/locking/semaphore.c:187 __up_console_sem+0xbe/0x1b0 kernel/printk/printk.c:236 console_unlock+0x811/0x1190 kernel/printk/printk.c:2432 vprintk_emit+0x391/0x990 kernel/printk/printk.c:1922 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1997 check_stack_usage kernel/exit.c:755 [inline] do_exit.cold.18+0x57/0x16f kernel/exit.c:916 do_group_exit+0x177/0x440 kernel/exit.c:970 __do_sys_exit_group kernel/exit.c:981 [inline] __se_sys_exit_group kernel/exit.c:979 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:979 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 ((console_sem).lock){-.-.}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152 down_trylock+0x13/0x70 kernel/locking/semaphore.c:136 __down_trylock_console_sem+0xae/0x1f0 kernel/printk/printk.c:219 console_trylock+0x15/0xa0 kernel/printk/printk.c:2247 console_trylock_spinning kernel/printk/printk.c:1653 [inline] vprintk_emit+0x372/0x990 kernel/printk/printk.c:1921 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1997 kasan_start_report mm/kasan/report.c:171 [inline] kasan_report_error mm/kasan/report.c:346 [inline] kasan_report+0x9b/0x110 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 pgd_val arch/x86/include/asm/paravirt.h:414 [inline] p4d_page_vaddr arch/x86/include/asm/pgtable.h:895 [inline] pud_offset arch/x86/include/asm/pgtable.h:907 [inline] vmalloc_fault+0x6d0/0x770 arch/x86/mm/fault.c:397 do_kern_addr_fault arch/x86/mm/fault.c:1203 [inline] __do_page_fault+0x860/0xe60 arch/x86/mm/fault.c:1487 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139 raw_write_seqcount_begin include/linux/seqlock.h:228 [inline] write_seqcount_begin_nested include/linux/seqlock.h:376 [inline] write_seqcount_begin include/linux/seqlock.h:382 [inline] psi_group_change kernel/sched/psi.c:449 [inline] psi_task_change+0x216/0x5f0 kernel/sched/psi.c:522 psi_dequeue kernel/sched/stats.h:100 [inline] dequeue_task kernel/sched/core.c:740 [inline] deactivate_task+0x29d/0x3d0 kernel/sched/core.c:759 detach_task.isra.91+0xa9/0x150 kernel/sched/fair.c:7185 detach_tasks kernel/sched/fair.c:7273 [inline] load_balance+0x1077/0x39a0 kernel/sched/fair.c:8731 rebalance_domains+0x845/0xdc0 kernel/sched/fair.c:9109 run_rebalance_domains+0x38d/0x500 kernel/sched/fair.c:9731 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804 bytes_is_nonzero mm/kasan/kasan.c:167 [inline] memory_is_nonzero mm/kasan/kasan.c:184 [inline] memory_is_poisoned_n mm/kasan/kasan.c:210 [inline] memory_is_poisoned mm/kasan/kasan.c:241 [inline] check_memory_region_inline mm/kasan/kasan.c:257 [inline] check_memory_region+0x10d/0x1b0 mm/kasan/kasan.c:267 kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 kernel/rcu/tree.c:292 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:906 rcu_read_unlock include/linux/rcupdate.h:657 [inline] inet_twsk_purge+0x731/0x870 net/ipv4/inet_timewait_sock.c:298 dccp_v4_exit_batch+0x1a/0x20 net/dccp/ipv4.c:1033 ops_exit_list.isra.5+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 other info that might help us debug this: Chain exists of: (console_sem).lock --> &rq->lock --> report_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(report_lock); lock(&rq->lock); lock(report_lock); lock((console_sem).lock); *** DEADLOCK *** 7 locks held by kworker/u4:3/456: #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:209 [inline] #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000579bb09c ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0xb43/0x1c40 kernel/workqueue.c:2124 #1: 00000000b88a31f0 (net_cleanup_work){+.+.}, at: process_one_work+0xb9a/0x1c40 kernel/workqueue.c:2128 #2: 00000000026220c6 (pernet_ops_rwsem){++++}, at: cleanup_net+0x13f/0xb10 net/core/net_namespace.c:518 #3: 000000001e4d55b8 (rcu_read_lock){....}, at: arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline] #3: 000000001e4d55b8 (rcu_read_lock){....}, at: atomic_read include/asm-generic/atomic-instrumented.h:22 [inline] #3: 000000001e4d55b8 (rcu_read_lock){....}, at: refcount_read include/linux/refcount.h:43 [inline] #3: 000000001e4d55b8 (rcu_read_lock){....}, at: inet_twsk_purge+0x136/0x870 net/ipv4/inet_timewait_sock.c:274 #4: 000000001e4d55b8 (rcu_read_lock){....}, at: rebalance_domains+0x135/0xdc0 kernel/sched/fair.c:9067 #5: 0000000005038d5b (&rq->lock){-.-.}, at: rq_lock_irqsave kernel/sched/sched.h:1110 [inline] #5: 0000000005038d5b (&rq->lock){-.-.}, at: load_balance+0xcb0/0x39a0 kernel/sched/fair.c:8724 #6: 000000002de88619 (report_lock){..-.}, at: kasan_start_report mm/kasan/report.c:170 [inline] #6: 000000002de88619 (report_lock){..-.}, at: kasan_report_error mm/kasan/report.c:346 [inline] #6: 000000002de88619 (report_lock){..-.}, at: kasan_report+0x8b/0x110 mm/kasan/report.c:412 stack backtrace: CPU: 1 PID: 456 Comm: kworker/u4:3 Not tainted 4.20.0-rc4+ #323 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 print_circular_bug.isra.35.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1863 [inline] check_prevs_add kernel/locking/lockdep.c:1976 [inline] validate_chain kernel/locking/lockdep.c:2347 [inline] __lock_acquire+0x3399/0x4c20 kernel/locking/lockdep.c:3341 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152 down_trylock+0x13/0x70 kernel/locking/semaphore.c:136 __down_trylock_console_sem+0xae/0x1f0 kernel/printk/printk.c:219 console_trylock+0x15/0xa0 kernel/printk/printk.c:2247 console_trylock_spinning kernel/printk/printk.c:1653 [inline] vprintk_emit+0x372/0x990 kernel/printk/printk.c:1921 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1997 kasan_start_report mm/kasan/report.c:171 [inline] kasan_report_error mm/kasan/report.c:346 [inline] kasan_report+0x9b/0x110 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 pgd_val arch/x86/include/asm/paravirt.h:414 [inline] p4d_page_vaddr arch/x86/include/asm/pgtable.h:895 [inline] pud_offset arch/x86/include/asm/pgtable.h:907 [inline] vmalloc_fault+0x6d0/0x770 arch/x86/mm/fault.c:397 do_kern_addr_fault arch/x86/mm/fault.c:1203 [inline] __do_page_fault+0x860/0xe60 arch/x86/mm/fault.c:1487 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139 RIP: 0010:raw_write_seqcount_begin include/linux/seqlock.h:228 [inline] RIP: 0010:write_seqcount_begin_nested include/linux/seqlock.h:376 [inline] RIP: 0010:write_seqcount_begin include/linux/seqlock.h:382 [inline] RIP: 0010:psi_group_change kernel/sched/psi.c:449 [inline] RIP: 0010:psi_task_change+0x216/0x5f0 kernel/sched/psi.c:522 Code: 00 4a 03 1c e5 20 70 27 89 48 89 d8 48 c1 e8 03 42 0f b6 14 18 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 0a 03 00 00 <83> 03 01 48 8d 43 08 45 31 c9 31 c9 48 89 c7 31 d2 31 f6 48 89 45 RSP: 0018:ffff8881daf074c0 EFLAGS: 00010046 RAX: 0000000000000003 RBX: ffffe8ffffc8a6c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff89277020 RBP: ffff8881daf07538 R08: 0000000000000004 R09: 0000000000000001 R10: ffffed103b5e5b67 R11: dffffc0000000000 R12: 0000000000000000 R13: 0000000000000008 R14: 00000000012ed358 R15: ffff888194e08400 psi_dequeue kernel/sched/stats.h:100 [inline] dequeue_task kernel/sched/core.c:740 [inline] deactivate_task+0x29d/0x3d0 kernel/sched/core.c:759 detach_task.isra.91+0xa9/0x150 kernel/sched/fair.c:7185 detach_tasks kernel/sched/fair.c:7273 [inline] load_balance+0x1077/0x39a0 kernel/sched/fair.c:8731 ? __sanitizer_co Lost 115 message(s)! 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