R10: 0000000000000000 R11: 0000000000000246 R12: 00007f05a3f306d4 R13: 00000000004beb9d R14: 00000000004cf7f8 R15: 0000000000000004 ================================ WARNING: inconsistent lock state 4.20.0-rc7+ #155 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. udevd/7718 [HC0[0]:SC1[1]:HE1:SE0] takes: 00000000210c6bbe (fs_reclaim){+.?.}, at: fs_reclaim_acquire.part.97+0x0/0x30 mm/internal.h:79 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 __fs_reclaim_acquire mm/page_alloc.c:3730 [inline] fs_reclaim_acquire.part.97+0x24/0x30 mm/page_alloc.c:3741 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3742 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x3c/0x740 mm/slab.c:3661 kmalloc_node include/linux/slab.h:584 [inline] kzalloc_node include/linux/slab.h:752 [inline] alloc_worker+0xc5/0x300 kernel/workqueue.c:1704 init_rescuer.part.24+0x1f/0x190 kernel/workqueue.c:4028 init_rescuer kernel/workqueue.c:4025 [inline] workqueue_init+0x491/0x744 kernel/workqueue.c:5794 kernel_init_freeable+0x3bb/0x6bf init/main.c:1139 kernel_init+0x11/0x1ae init/main.c:1071 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 irq event stamp: 1181194 hardirqs last enabled at (1181194): [] console_unlock+0xcfb/0x1190 kernel/printk/printk.c:2443 kobject: 'loop5' (0000000007309ae4): kobject_uevent_env hardirqs last disabled at (1181193): [] console_unlock+0x2d9/0x1190 kernel/printk/printk.c:2353 softirqs last enabled at (1177866): [] __do_softirq+0x7df/0xb7e kernel/softirq.c:319 softirqs last disabled at (1181107): [] invoke_softirq kernel/softirq.c:373 [inline] softirqs last disabled at (1181107): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 kobject: 'loop5' (0000000007309ae4): fill_kobj_path: path = '/devices/virtual/block/loop5' other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(fs_reclaim); lock(fs_reclaim); *** DEADLOCK *** 4 locks held by udevd/7718: #0: 000000008357f8e6 (&dup_mmap_sem){.+.+}, at: dup_mmap kernel/fork.c:471 [inline] #0: 000000008357f8e6 (&dup_mmap_sem){.+.+}, at: dup_mm kernel/fork.c:1318 [inline] #0: 000000008357f8e6 (&dup_mmap_sem){.+.+}, at: copy_mm kernel/fork.c:1373 [inline] #0: 000000008357f8e6 (&dup_mmap_sem){.+.+}, at: copy_process+0x365e/0x87a0 kernel/fork.c:1917 kobject: 'loop4' (00000000da32bd06): kobject_uevent_env #1: 00000000bf6b2c83 (&mm->mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #1: 00000000bf6b2c83 (&mm->mmap_sem){++++}, at: dup_mm kernel/fork.c:1318 [inline] #1: 00000000bf6b2c83 (&mm->mmap_sem){++++}, at: copy_mm kernel/fork.c:1373 [inline] #1: 00000000bf6b2c83 (&mm->mmap_sem){++++}, at: copy_process+0x367a/0x87a0 kernel/fork.c:1917 #2: 00000000f492a9b6 (&mm->mmap_sem/1){+.+.}, at: dup_mmap kernel/fork.c:481 [inline] #2: 00000000f492a9b6 (&mm->mmap_sem/1){+.+.}, at: dup_mm kernel/fork.c:1318 [inline] #2: 00000000f492a9b6 (&mm->mmap_sem/1){+.+.}, at: copy_mm kernel/fork.c:1373 [inline] #2: 00000000f492a9b6 (&mm->mmap_sem/1){+.+.}, at: copy_process+0x36d2/0x87a0 kernel/fork.c:1917 #3: 00000000dff36128 (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:228 [inline] #3: 00000000dff36128 (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2437 [inline] #3: 00000000dff36128 (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] #3: 00000000dff36128 (rcu_callback){....}, at: rcu_process_callbacks+0x1103/0x1ac0 kernel/rcu/tree.c:2697 stack backtrace: kobject: 'loop4' (00000000da32bd06): fill_kobj_path: path = '/devices/virtual/block/loop4' CPU: 0 PID: 7718 Comm: udevd Not tainted 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 kobject: 'loop2' (00000000a647379e): kobject_uevent_env print_usage_bug.cold.59+0x320/0x41a kernel/locking/lockdep.c:2472 kobject: 'loop2' (00000000a647379e): fill_kobj_path: path = '/devices/virtual/block/loop2' valid_state kernel/locking/lockdep.c:2485 [inline] mark_lock_irq kernel/locking/lockdep.c:2679 [inline] mark_lock+0x1276/0x1cd0 kernel/locking/lockdep.c:3059 kobject: 'loop4' (00000000da32bd06): kobject_uevent_env kobject: 'loop4' (00000000da32bd06): fill_kobj_path: path = '/devices/virtual/block/loop4' mark_irqflags kernel/locking/lockdep.c:2937 [inline] __lock_acquire+0x155f/0x4c20 kernel/locking/lockdep.c:3298 kobject: 'loop3' (00000000535555bb): kobject_uevent_env kobject: 'loop3' (00000000535555bb): fill_kobj_path: path = '/devices/virtual/block/loop3' lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 __fs_reclaim_acquire mm/page_alloc.c:3730 [inline] fs_reclaim_acquire.part.97+0x24/0x30 mm/page_alloc.c:3741 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3742 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2d/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:546 [inline] kzalloc include/linux/slab.h:741 [inline] kobject_uevent_env+0x2f3/0x101e lib/kobject_uevent.c:514 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.h:421 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Not tainted 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2cd/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:546 [inline] kzalloc include/linux/slab.h:741 [inline] kobject_uevent_env+0x2f3/0x101e lib/kobject_uevent.c:514 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.c:3066 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 cache_alloc_debugcheck_before mm/slab.c:3066 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc_trace+0x307/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:546 [inline] kzalloc include/linux/slab.h:741 [inline] kobject_uevent_env+0x2f3/0x101e lib/kobject_uevent.c:514 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.h:421 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3720 [inline] __kmalloc+0x2d6/0x760 mm/slab.c:3731 kmalloc include/linux/slab.h:551 [inline] kzalloc include/linux/slab.h:741 [inline] kobject_get_path+0xc2/0x1b0 lib/kobject.c:171 kobject_uevent_env+0x314/0x101e lib/kobject_uevent.c:519 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.c:3066 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 cache_alloc_debugcheck_before mm/slab.c:3066 [inline] slab_alloc mm/slab.c:3382 [inline] __do_kmalloc mm/slab.c:3720 [inline] __kmalloc+0x310/0x760 mm/slab.c:3731 kmalloc include/linux/slab.h:551 [inline] kzalloc include/linux/slab.h:741 [inline] kobject_get_path+0xc2/0x1b0 lib/kobject.c:171 kobject_uevent_env+0x314/0x101e lib/kobject_uevent.c:519 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 kobject: 'loop0p236' (00000000d1284b16): fill_kobj_path: path = '/loop0p236' BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 __mutex_lock_common kernel/locking/mutex.c:908 [inline] __mutex_lock+0x138/0x16f0 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 kobject_uevent_env+0x7d7/0x101e lib/kobject_uevent.c:580 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.h:421 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node+0x264/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] alloc_uevent_skb+0x84/0x1da lib/kobject_uevent.c:288 uevent_net_broadcast_untagged lib/kobject_uevent.c:324 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:406 [inline] kobject_uevent_env+0xa52/0x101e lib/kobject_uevent.c:587 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.c:3066 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 cache_alloc_debugcheck_before mm/slab.c:3066 [inline] slab_alloc_node mm/slab.c:3303 [inline] kmem_cache_alloc_node+0x29e/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:997 [inline] alloc_uevent_skb+0x84/0x1da lib/kobject_uevent.c:288 uevent_net_broadcast_untagged lib/kobject_uevent.c:324 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:406 [inline] kobject_uevent_env+0xa52/0x101e lib/kobject_uevent.c:587 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917 _do_fork+0x1cb/0x11d0 kernel/fork.c:2216 __do_sys_clone kernel/fork.c:2323 [inline] __se_sys_clone kernel/fork.c:2317 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2317 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f2670563f46 Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00 RSP: 002b:00007ffdcd574cf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcd574cf0 RCX: 00007f2670563f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcd574d50 R08: 0000000000001e26 R09: 0000000000001e26 R10: 00007f2670e80a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcd574d10 R14: 0000000000000005 R15: 0000000000000005 BUG: sleeping function called from invalid context at mm/slab.h:421 in_atomic(): 1, irqs_disabled(): 0, pid: 7718, name: udevd INFO: lockdep is turned off. Preemption disabled at: [] __do_softirq+0x189/0xb7e kernel/softirq.c:269 CPU: 0 PID: 7718 Comm: udevd Tainted: G W 4.20.0-rc7+ #155 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 ___might_sleep.cold.86+0x221/0x254 kernel/sched/core.c:6148 __might_sleep+0x95/0x190 kernel/sched/core.c:6101 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x266/0x740 mm/slab.c:3661 __do_kmalloc_node mm/slab.c:3683 [inline] __kmalloc_node_track_caller+0x3c/0x70 mm/slab.c:3698 __kmalloc_reserve.isra.40+0x41/0xe0 net/core/skbuff.c:137 __alloc_skb+0x155/0x770 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:997 [inline] alloc_uevent_skb+0x84/0x1da lib/kobject_uevent.c:288 uevent_net_broadcast_untagged lib/kobject_uevent.c:324 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:406 [inline] kobject_uevent_env+0xa52/0x101e lib/kobject_uevent.c:587 kobject_uevent+0x1f/0x24 lib/kobject_uevent.c:636 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put.cold.9+0x170/0x2e4 lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2024 delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:259 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2437 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline] rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697 __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:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:lock_release+0x51d/0xa00 kernel/locking/lockdep.c:3866 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 55 03 00 00 48 83 3d a2 32 f0 07 00 0f 84 15 02 00 00 48 8b bd e0 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0018:ffff8881808be790 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11030117cf7 RCX: 1ffff11030118566 RDX: 1ffffffff12a401e RSI: 1ffff11030118577 RDI: 0000000000000286 RBP: ffff8881808be8c0 R08: 1ffff11030117cfb R09: ffffed103b5c5b5f R10: 0000000000000004 R11: ffff8881dae2dafb R12: ffff8881808c22c0 R13: 0000000000000003 R14: ffff8881808c22c0 R15: ffff8881808be7d8 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] is_bpf_text_address+0xd3/0x170 kernel/bpf/core.c:548 kernel_text_address+0x79/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18 __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 anon_vma_chain_alloc mm/rmap.c:129 [inline] anon_vma_clone+0x140/0x710 mm/rmap.c:269 anon_vma_fork+0xf4/0x820 mm/rmap.c:332 dup_mmap kernel/fork.c:540 [inline] dup_mm kernel/fork.c:1318 [inline] copy_mm kernel/fork.c:1373 [inline] copy_process+0x468f/0x87a0 kernel/fork.c:1917