syzbot


inconsistent lock state in fs_reclaim_acquire (2)

Status: auto-closed as invalid on 2019/06/26 10:05
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+63833431f68be871fb95@syzkaller.appspotmail.com
First crash: 2150d, last: 1918d
Discussions (1)
Title Replies (including bot) Last reply
inconsistent lock state in fs_reclaim_acquire (2) 2 (3) 2018/05/10 06:37
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream inconsistent lock state in fs_reclaim_acquire kernel C 36235 2152d 2162d 5/26 fixed on 2018/05/08 18:30
linux-4.14 inconsistent lock state in fs_reclaim_acquire 4 1792d 1809d 0/1 auto-closed as invalid on 2019/10/25 08:45
upstream inconsistent lock state in fs_reclaim_acquire (3) kernel C 2 513d 519d 22/26 fixed on 2023/02/24 13:51

Sample crash report:
================================
WARNING: inconsistent lock state
4.20.0+ #172 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
kworker/0:3/9781 [HC0[0]:SC1[1]:HE1:SE0] takes:
000000000bbf0f44 (fs_reclaim){+.?.}, at: fs_reclaim_acquire.part.96+0x0/0x30 mm/internal.h:79
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
{SOFTIRQ-ON-W} state was registered at:
  lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3841
  __fs_reclaim_acquire mm/page_alloc.c:3730 [inline]
  fs_reclaim_acquire.part.96+0x24/0x30 mm/page_alloc.c:3741
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
  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]
  alloc_workqueue_attrs+0x81/0x100 kernel/workqueue.c:3230
  wq_numa_init kernel/workqueue.c:5648 [inline]
  workqueue_init+0x98/0x744 kernel/workqueue.c:5782
  kernel_init_freeable+0x2b0/0x5b4 init/main.c:1135
  kernel_init+0x11/0x1ae init/main.c:1067
  ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
irq event stamp: 479042
hardirqs last  enabled at (479042): [<ffffffff8167c24f>] console_unlock+0x94f/0x1180 kernel/printk/printk.c:2437
hardirqs last disabled at (479041): [<ffffffff8167bbd9>] console_unlock+0x2d9/0x1180 kernel/printk/printk.c:2348
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
softirqs last  enabled at (476844): [<ffffffff816b6454>] srcu_invoke_callbacks+0x284/0x4e0 kernel/rcu/srcutree.c:1209
softirqs last disabled at (478993): [<ffffffff814d3acf>] invoke_softirq kernel/softirq.c:373 [inline]
softirqs last disabled at (478993): [<ffffffff814d3acf>] irq_exit+0x17f/0x1c0 kernel/softirq.c:413

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(fs_reclaim);
  <Interrupt>
    lock(fs_reclaim);

 *** DEADLOCK ***

4 locks held by kworker/0:3/9781:
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: __write_once_size include/linux/compiler.h:218 [inline]
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline]
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline]
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline]
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
 #0: 00000000d853c77e ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0xb43/0x1c40 kernel/workqueue.c:2124
 #1: 000000002b86d477 ((work_completion)(&(&ssp->work)->work)){+.+.}, at: process_one_work+0xb9a/0x1c40 kernel/workqueue.c:2128
 #2: 0000000098c68300 (&ssp->srcu_gp_mutex){+.+.}, at: srcu_advance_state kernel/rcu/srcutree.c:1119 [inline]
 #2: 0000000098c68300 (&ssp->srcu_gp_mutex){+.+.}, at: process_srcu+0x13e/0x1460 kernel/rcu/srcutree.c:1261
 #3: 00000000d055cea7 (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:228 [inline]
 #3: 00000000d055cea7 (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2452 [inline]
 #3: 00000000d055cea7 (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline]
 #3: 00000000d055cea7 (rcu_callback){....}, at: rcu_process_callbacks+0xd54/0x1600 kernel/rcu/tree.c:2754

stack backtrace:
CPU: 0 PID: 9781 Comm: kworker/0:3 Not tainted 4.20.0+ #172
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: rcu_gp process_srcu
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 print_usage_bug.cold.61+0x320/0x41a kernel/locking/lockdep.c:2475
 valid_state kernel/locking/lockdep.c:2488 [inline]
 mark_lock_irq kernel/locking/lockdep.c:2682 [inline]
 mark_lock+0x1114/0x1cc0 kernel/locking/lockdep.c:3062
 mark_irqflags kernel/locking/lockdep.c:2940 [inline]
 __lock_acquire+0x15b0/0x4c20 kernel/locking/lockdep.c:3295
 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3841
 __fs_reclaim_acquire mm/page_alloc.c:3730 [inline]
 fs_reclaim_acquire.part.96+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:2048
 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:2452 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline]
 rcu_process_callbacks+0xc5b/0x1600 kernel/rcu/tree.c:2754
 __do_softirq+0x30c/0xb2e 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:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:lock_release+0x3f/0xa00 kernel/locking/lockdep.c:3850
Code: fe ff ff 48 81 ec 08 01 00 00 48 c1 eb 03 48 89 95 e8 fe ff ff 48 ba 00 00 00 00 00 fc ff df 48 8d 04 13 48 89 bd f0 fe ff ff <48> c7 85 f8 fe ff ff b3 8a b5 41 48 c7 85 00 ff ff ff c8 54 34 89
RSP: 0018:ffff888056c87038 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13
RAX: ffffed100ad90e0c RBX: 1ffff1100ad90e0c RCX: 1ffff1100ad90e39
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8b33a280
RBP: ffff888056c87168 R08: ffff8880925326c0 R09: 1ffffd1ffffa12c0
R10: ffff888056c87250 R11: ffffffff8b33a227 R12: 1ffff1100ad90eb2
R13: ffff888056c87140 R14: ffffffff8b33a3b0 R15: ffff888056c87710
 __mutex_unlock_slowpath+0x102/0x8c0 kernel/locking/mutex.c:1197
 mutex_unlock+0xd/0x10 kernel/locking/mutex.c:713
 srcu_advance_state kernel/rcu/srcutree.c:1145 [inline]
 process_srcu+0x4c6/0x1460 kernel/rcu/srcutree.c:1261
 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
BUG: sleeping function called from invalid context at mm/slab.h:421
in_atomic(): 1, irqs_disabled(): 0, pid: 9781, name: kworker/0:3
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
INFO: lockdep is turned off.
Preemption disabled at:
[<ffffffff88200189>] __do_softirq+0x189/0xb2e kernel/softirq.c:269
CPU: 0 PID: 9781 Comm: kworker/0:3 Not tainted 4.20.0+ #172
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: rcu_gp process_srcu
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 ___might_sleep.cold.85+0x1ba/0x1f3 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:2048
 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:2452 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline]
 rcu_process_callbacks+0xc5b/0x1600 kernel/rcu/tree.c:2754
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'holders' (00000000dc2dd3ae): kobject_cleanup, parent 000000009b77dcc5
 __do_softirq+0x30c/0xb2e kernel/softirq.c:292
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'holders' (00000000dc2dd3ae): auto cleanup kobject_del
kobject: 'holders' (00000000dc2dd3ae): calling ktype release
 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:1062
kobject: (00000000dc2dd3ae): dynamic_kobj_release
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
kobject: 'holders': free name
 </IRQ>
RIP: 0010:lock_release+0x3f/0xa00 kernel/locking/lockdep.c:3850
Code: fe ff ff 48 81 ec 08 01 00 00 48 c1 eb 03 48 89 95 e8 fe ff ff 48 ba 00 00 00 00 00 fc ff df 48 8d 04 13 48 89 bd f0 fe ff ff <48> c7 85 f8 fe ff ff b3 8a b5 41 48 c7 85 00 ff ff ff c8 54 34 89
RSP: 0018:ffff888056c87038 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13
RAX: ffffed100ad90e0c RBX: 1ffff1100ad90e0c RCX: 1ffff1100ad90e39
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8b33a280
RBP: ffff888056c87168 R08: ffff8880925326c0 R09: 1ffffd1ffffa12c0
R10: ffff888056c87250 R11: ffffffff8b33a227 R12: 1ffff1100ad90eb2
R13: ffff888056c87140 R14: ffffffff8b33a3b0 R15: ffff888056c87710
kobject: 'loop0p236' (000000009b77dcc5): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 __mutex_unlock_slowpath+0x102/0x8c0 kernel/locking/mutex.c:1197
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
 mutex_unlock+0xd/0x10 kernel/locking/mutex.c:713
 srcu_advance_state kernel/rcu/srcutree.c:1145 [inline]
 process_srcu+0x4c6/0x1460 kernel/rcu/srcutree.c:1261
 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
kobject: 'loop0p229' (00000000cfd38aa5): fill_kobj_path: path = '/loop0p229'
CPU: 1 PID: 20257 Comm: syz-executor0 Tainted: G        W         4.20.0+ #172
kobject: 'loop0p229' (00000000cfd38aa5): calling ktype release
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop0p229': free name
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149
 __should_failslab+0x124/0x180 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1578
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3378 [inline]
 __do_kmalloc mm/slab.c:3720 [inline]
 __kmalloc+0x2e0/0x770 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
 device_del+0x6b8/0xb60 drivers/base/core.c:2111
 delete_partition+0x233/0x2c0 block/partition-generic.c:288
 blkpg_ioctl+0x3c5/0xc10 block/ioctl.c:93
 blkdev_ioctl+0xca6/0x21b0 block/ioctl.c:577
 block_ioctl+0xee/0x130 fs/block_dev.c:1883
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4579b9
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007efda155dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efda155dc90 RCX: 00000000004579b9
RDX: 00000000200006c0 RSI: 0000000000001269 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efda155e6d4
R13: 00000000004bf0d8 R14: 00000000004d04f8 R15: 0000000000000004
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0p236' (000000009b77dcc5): kobject_cleanup, parent           (null)
kobject: 'loop0p236' (000000009b77dcc5): auto cleanup 'remove' event
kobject: 'loop0p236' (000000009b77dcc5): kobject_uevent_env
BUG: sleeping function called from invalid context at mm/slab.h:421
in_atomic(): 1, irqs_disabled(): 0, pid: 3834, name: udevd
INFO: lockdep is turned off.
Preemption disabled at:
[<ffffffff81680358>] vprintk_emit+0x378/0x990 kernel/printk/printk.c:1924
CPU: 0 PID: 3834 Comm: udevd Tainted: G        W         4.20.0+ #172
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 ___might_sleep.cold.85+0x1ba/0x1f3 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:2048
 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:2452 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline]
 rcu_process_callbacks+0xc5b/0x1600 kernel/rcu/tree.c:2754
 __do_softirq+0x30c/0xb2e 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:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline]
RIP: 0010:console_unlock+0xd21/0x1180 kernel/printk/printk.c:2416
Code: c1 e8 03 42 80 3c 30 00 0f 85 68 03 00 00 48 83 3d 23 85 0a 08 00 0f 84 8f 02 00 00 e8 d8 df 19 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 13 f5 ff ff e8 c0 df 19 00 48 8b 7d 08 c7 05 62
RSP: 0018:ffff888095f17420 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff888095f0a1c0 RBX: 0000000000000200 RCX: ffffffff8187c59a
RDX: 0000000000000000 RSI: ffffffff8167c618 RDI: 0000000000000293
RBP: ffff888095f17588 R08: ffff888095f0a1c0 R09: fffffbfff12f28a4
R10: fffffbfff12f28a4 R11: ffffffff89794523 R12: 0000000000000000
R13: ffffffff849f6360 R14: dffffc0000000000 R15: ffffffff89d678b0
 vprintk_emit+0x39c/0x990 kernel/printk/printk.c:1931
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1991
 fill_kobj_path lib/kobject.c:151 [inline]
 kobject_get_path.cold.8+0x38/0x47 lib/kobject.c:174
 kobject_uevent_env+0x314/0x101e lib/kobject_uevent.c:519
 kobject_synth_uevent.cold.5+0x10e/0x17b lib/kobject_uevent.c:208
 uevent_store+0x26/0x70 drivers/base/core.c:1091
 dev_attr_store+0x5e/0x90 drivers/base/core.c:802
 sysfs_kf_write+0x118/0x170 fs/sysfs/file.c:139
 kernfs_fop_write+0x2ba/0x480 fs/kernfs/file.c:316
 __vfs_write+0x119/0x9f0 fs/read_write.c:485
 vfs_write+0x1fc/0x560 fs/read_write.c:549
 ksys_write+0x101/0x260 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc24620e370
Code: 73 01 c3 48 8b 0d c8 4a 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d 85 a2 2b 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 0e 8a 01 00 48 89 04 24
RSP: 002b:00007fff52f31618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000ed5650 RCX: 00007fc24620e370
RDX: 0000000000000006 RSI: 000000000041f4f9 RDI: 000000000000000b
RBP: 0000000000f122b0 R08: 000000000041f4f1 R09: 00007fc2462647d0
R10: 7269762f73656369 R11: 0000000000000246 R12: 000000000000000b
R13: 0000000000000000 R14: 0000000000ed5650 R15: 0000000000ec2030
kobject: 'loop0p236' (000000009b77dcc5): fill_kobj_path: path = '/loop0p236'
kobject: 'loop0p236' (000000009b77dcc5): calling ktype release
kobject: 'loop0p236': free name
kobject: 'holders' (00000000d1fc5ac2): kobject_cleanup, parent 000000004fd136a2
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'holders' (00000000d1fc5ac2): auto cleanup kobject_del
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'holders' (00000000d1fc5ac2): calling ktype release
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: (00000000d1fc5ac2): dynamic_kobj_release
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'holders': free name
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop0p226' (000000004fd136a2): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop0p226' (000000004fd136a2): fill_kobj_path: path = '/devices/virtual/block/loop0/loop0p226'
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0p226' (000000004fd136a2): kobject_cleanup, parent           (null)
kobject: 'loop0p226' (000000004fd136a2): calling ktype release
kobject: 'loop0p226': free name
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0p229' (000000007f708c14): kobject_add_internal: parent: 'loop0', set: 'devices'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0p229' (000000007f708c14): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0p229' (000000007f708c14): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'holders' (0000000095821dd2): kobject_add_internal: parent: 'loop0p229', set: '<NULL>'
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop0p229' (000000007f708c14): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop0p229' (000000007f708c14): fill_kobj_path: path = '/devices/virtual/block/loop0/loop0p229'
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0p236' (000000006b71b76c): kobject_add_internal: parent: 'loop0', set: 'devices'
kobject: 'loop0p236' (000000006b71b76c): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0p236' (000000006b71b76c): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'holders' (00000000d0fbe1d6): kobject_add_internal: parent: 'loop0p236', set: '<NULL>'
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop0p236' (000000006b71b76c): kobject_uevent_env
kobject: 'loop0p236' (000000006b71b76c): fill_kobj_path: path = '/devices/virtual/block/loop0/loop0p236'
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000a1334ef0): kobject_uevent_env
kobject: 'loop2' (00000000a1334ef0): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (000000001108a1bc): kobject_uevent_env
kobject: 'loop4' (000000001108a1bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000731c5223): kobject_uevent_env
kobject: 'loop0' (00000000731c5223): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ae9188c0): kobject_uevent_env
kobject: 'loop1' (00000000ae9188c0): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000fbf52a13): kobject_uevent_env
kobject: 'loop3' (00000000fbf52a13): fill_kobj_path: path = '/devices/virtual/block/loop3'

Crashes (211):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/12/28 10:05 upstream b71acb0e3721 af317504 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/28 06:09 upstream b71acb0e3721 af317504 .config console log report ci-upstream-kasan-gce-root
2018/12/26 15:52 upstream 5694cecdb092 8a41a0ad .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/25 01:00 upstream 8fe28cb58bcb 8a41a0ad .config console log report ci-upstream-kasan-gce-root
2018/12/24 16:32 upstream 8fe28cb58bcb be79df56 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/24 10:21 upstream 8fe28cb58bcb be79df56 .config console log report ci-upstream-kasan-gce-root
2018/12/23 23:22 upstream 3c730b1041ae e3bd7ab8 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/22 22:12 upstream 23203e3f34c9 e3bd7ab8 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/22 18:40 upstream 23203e3f34c9 e3bd7ab8 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/22 03:02 upstream 5092adb2272e 603b5124 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/21 23:19 upstream 5092adb2272e 588075e6 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/21 23:02 upstream 5092adb2272e 588075e6 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/21 06:34 upstream 9097a058d49e 2b497001 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/19 04:35 upstream ddfbab46539f 4edaba93 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/19 02:52 upstream ddfbab46539f 4edaba93 .config console log report ci-upstream-kasan-gce-root
2018/12/18 04:16 upstream 1a9430db2835 def91db3 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/17 09:05 upstream 7566ec393f41 def91db3 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/16 15:40 upstream 6531e115b7ab def91db3 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/16 05:15 upstream 6531e115b7ab def91db3 .config console log report ci-upstream-kasan-gce-root
2018/12/15 13:14 upstream 6531e115b7ab c9128939 .config console log report ci-upstream-kasan-gce-root
2018/12/15 01:16 upstream eb6cf9f8cb9d 7624ddd6 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/14 02:01 upstream 65e08c5e8631 fe7127be .config console log report ci-upstream-kasan-gce-smack-root
2018/12/13 21:43 upstream f5d582777bcb f3d9d594 .config console log report ci-upstream-kasan-gce-root
2018/12/13 18:29 upstream f5d582777bcb f3d9d594 .config console log report ci-upstream-kasan-gce-root
2018/12/13 14:25 upstream f5d582777bcb f3d9d594 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/13 00:27 upstream f5d582777bcb 02613a41 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/12 00:52 upstream f5d582777bcb 7795ae03 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/11 17:00 upstream f5d582777bcb 7795ae03 .config console log report ci-upstream-kasan-gce-root
2018/12/11 14:09 upstream f5d582777bcb 7795ae03 .config console log report ci-upstream-kasan-gce-root
2018/12/10 15:33 upstream 40e020c129cf 6565f24d .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/10 13:45 upstream 40e020c129cf 6565f24d .config console log report ci-upstream-kasan-gce-smack-root
2018/12/09 13:58 upstream 8214bdf7d3e6 979179d6 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/09 05:14 upstream 8214bdf7d3e6 c7918378 .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/08 14:05 upstream 5f179793f0a7 60562a1d .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/07 13:19 upstream b72f711a4efa 1eb6a7e4 .config console log report ci-upstream-kasan-gce-root
2018/12/07 05:50 upstream abb8d6ecbd8f dcf836b1 .config console log report ci-upstream-kasan-gce-root
2018/12/07 03:17 upstream abb8d6ecbd8f dcf836b1 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/06 21:24 upstream cf76c364a1e1 3ab38479 .config console log report ci-upstream-kasan-gce-root
2018/12/06 17:31 upstream cf76c364a1e1 3ab38479 .config console log report ci-upstream-kasan-gce-root
2018/12/06 14:20 upstream cf76c364a1e1 3ab38479 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/06 02:01 upstream d08970904582 764b42c4 .config console log report ci-upstream-kasan-gce-root
2018/12/05 02:18 upstream 0072a0c14d5b f162ad97 .config console log report ci-upstream-kasan-gce-smack-root
2018/12/04 16:51 upstream 0072a0c14d5b 6ad0ae61 .config console log report ci-upstream-kasan-gce-root
2018/05/09 17:24 upstream 036db8bd9637 12c7428a .config console log report ci-upstream-kasan-gce-root
2018/12/04 15:41 linux-next 442b8cea2477 6ad0ae61 .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.