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possible deadlock in perf_event_ctx_lock_nested (2)

Status: upstream: reported C repro on 2022/12/01 07:26
Subsystems: btrfs
[Documentation on labels]
Reported-by: syzbot+a586f1d8d7828e8ca948@syzkaller.appspotmail.com
First crash: 504d, last: 409d
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in perf_event_ctx_lock_nested perf 8914 2316d 2365d 0/26 auto-closed as invalid on 2019/02/22 10:22
linux-4.19 possible deadlock in perf_event_ctx_lock_nested 1 1106d 1106d 0/1 auto-closed as invalid on 2021/08/06 16:06
linux-4.14 possible deadlock in perf_event_ctx_lock_nested (2) syz error 6 476d 1276d 0/1 upstream: reported syz repro on 2020/10/20 10:26
upstream possible deadlock in perf_event_ctx_lock_nested (2) perf syz done 12 910d 1067d 0/26 auto-obsoleted due to no activity on 2022/10/17 08:54
linux-4.14 possible deadlock in perf_event_ctx_lock_nested 1 1416d 1416d 0/1 auto-closed as invalid on 2020/09/30 09:36

Sample crash report:
BTRFS info (device loop0): clearing free space tree
BTRFS info (device loop0): clearing 1 ro feature flag
BTRFS info (device loop0): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8352)
======================================================
WARNING: possible circular locking dependency detected
4.19.211-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor506/8407 is trying to acquire lock:
000000008fd65d2a (&mm->mmap_sem){++++}, at: __might_fault+0xef/0x1d0 mm/memory.c:4771

but task is already holding lock:
0000000038adf7db (&cpuctx_mutex){+.+.}, at: perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #10 (&cpuctx_mutex){+.+.}:
       perf_event_init_cpu+0xc4/0x170 kernel/events/core.c:11828
       perf_event_init+0x309/0x34e kernel/events/core.c:11875
       start_kernel+0x5b1/0x911 init/main.c:644
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (8377)
       secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243

-> #9 (pmus_lock){+.+.}:
       perf_event_init_cpu+0x2c/0x170 kernel/events/core.c:11822
       cpuhp_invoke_callback+0x201/0x1b80 kernel/cpu.c:170
       cpuhp_up_callbacks kernel/cpu.c:584 [inline]
       _cpu_up+0x25c/0x540 kernel/cpu.c:1192
       do_cpu_up+0xdd/0x1b0 kernel/cpu.c:1228
       smp_init+0x1ed/0x202 kernel/smp.c:578
       kernel_init_freeable+0x62b/0xab7 init/main.c:1138
       kernel_init+0xd/0x1ba init/main.c:1062
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

-> #8 (cpu_hotplug_lock.rw_sem){++++}:
       get_online_cpus include/linux/cpu.h:137 [inline]
       kmem_cache_create_usercopy+0x24/0x240 mm/slab_common.c:447
       kmem_cache_create+0xd/0x10 mm/slab_common.c:522
       bio_find_or_create_slab block/bio.c:117 [inline]
       bioset_init+0x473/0x810 block/bio.c:1920
       init_bio+0x184/0x1e0 block/bio.c:2094
       do_one_initcall+0xf1/0x740 init/main.c:884
       do_initcall_level init/main.c:952 [inline]
       do_initcalls init/main.c:960 [inline]
       do_basic_setup init/main.c:978 [inline]
       kernel_init_freeable+0x9c5/0xab7 init/main.c:1145
       kernel_init+0xd/0x1ba init/main.c:1062
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

-> #7 (bio_slab_lock){+.+.}:
       bio_find_or_create_slab block/bio.c:82 [inline]
       bioset_init+0x1ab/0x810 block/bio.c:1920
       blk_alloc_queue_node+0x189/0xbf0 block/blk-core.c:1025
       blk_mq_init_queue+0x44/0xa0 block/blk-mq.c:2500
       loop_add+0x2cb/0x8a0 drivers/block/loop.c:1996
       loop_init+0x1ef/0x24a drivers/block/loop.c:2259
       do_one_initcall+0xf1/0x740 init/main.c:884
       do_initcall_level init/main.c:952 [inline]
       do_initcalls init/main.c:960 [inline]
       do_basic_setup init/main.c:978 [inline]
       kernel_init_freeable+0x9c5/0xab7 init/main.c:1145
       kernel_init+0xd/0x1ba init/main.c:1062
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

-> #6 (loop_ctl_mutex){+.+.}:
       lo_open+0x19/0xd0 drivers/block/loop.c:1771
       __blkdev_get+0x372/0x1480 fs/block_dev.c:1494
       blkdev_get+0xb0/0x940 fs/block_dev.c:1627
       blkdev_open+0x202/0x290 fs/block_dev.c:1788
       do_dentry_open+0x4aa/0x1160 fs/open.c:796
       do_last fs/namei.c:3421 [inline]
       path_openat+0x793/0x2df0 fs/namei.c:3537
       do_filp_open+0x18c/0x3f0 fs/namei.c:3567
       do_sys_open+0x3b3/0x520 fs/open.c:1085
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #5 (&bdev->bd_mutex){+.+.}:
       blkdev_put+0x30/0x520 fs/block_dev.c:1839
       btrfs_close_bdev fs/btrfs/volumes.c:1033 [inline]
       btrfs_close_one_device fs/btrfs/volumes.c:1057 [inline]
       close_fs_devices.part.0+0x24d/0x8e0 fs/btrfs/volumes.c:1085
       close_fs_devices fs/btrfs/volumes.c:1117 [inline]
       btrfs_close_devices+0x95/0x1f0 fs/btrfs/volumes.c:1103
       close_ctree+0x3c8/0x850 fs/btrfs/disk-io.c:4047
       generic_shutdown_super+0x144/0x370 fs/super.c:456
       kill_anon_super+0x36/0x60 fs/super.c:1032
       btrfs_kill_super+0x49/0x550 fs/btrfs/super.c:2221
       deactivate_locked_super+0x94/0x160 fs/super.c:329
       deactivate_super+0x174/0x1a0 fs/super.c:360
       cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
       task_work_run+0x148/0x1c0 kernel/task_work.c:113
       tracehook_notify_resume include/linux/tracehook.h:193 [inline]
       exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
       prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
       syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
       do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #4 (&fs_devs->device_list_mutex){+.+.}:
       btrfs_run_dev_stats+0xbb/0xa80 fs/btrfs/volumes.c:7111
       commit_cowonly_roots+0x1ce/0xc30 fs/btrfs/transaction.c:1172
       btrfs_commit_transaction+0x94a/0x2480 fs/btrfs/transaction.c:2218
       btrfs_clear_free_space_tree+0x69d/0xa50 fs/btrfs/free-space-tree.c:1255
       open_ctree.cold+0x30/0xc3d fs/btrfs/disk-io.c:3203
       btrfs_fill_super fs/btrfs/super.c:1209 [inline]
       btrfs_mount_root+0x12e5/0x1830 fs/btrfs/super.c:1613
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount+0x3c/0x60 fs/namespace.c:951
       btrfs_mount+0x23a/0xaa0 fs/btrfs/super.c:1681
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount fs/namespace.c:951 [inline]
       do_new_mount fs/namespace.c:2492 [inline]
       do_mount+0x115c/0x2f50 fs/namespace.c:2822
       ksys_mount+0xcf/0x130 fs/namespace.c:3038
       __do_sys_mount fs/namespace.c:3052 [inline]
       __se_sys_mount fs/namespace.c:3049 [inline]
       __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #3 (&fs_info->tree_log_mutex){+.+.}:
       btrfs_commit_transaction+0x8c2/0x2480 fs/btrfs/transaction.c:2176
       btrfs_clear_free_space_tree+0x69d/0xa50 fs/btrfs/free-space-tree.c:1255
       open_ctree.cold+0x30/0xc3d fs/btrfs/disk-io.c:3203
       btrfs_fill_super fs/btrfs/super.c:1209 [inline]
       btrfs_mount_root+0x12e5/0x1830 fs/btrfs/super.c:1613
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount+0x3c/0x60 fs/namespace.c:951
       btrfs_mount+0x23a/0xaa0 fs/btrfs/super.c:1681
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount fs/namespace.c:951 [inline]
       do_new_mount fs/namespace.c:2492 [inline]
       do_mount+0x115c/0x2f50 fs/namespace.c:2822
       ksys_mount+0xcf/0x130 fs/namespace.c:3038
       __do_sys_mount fs/namespace.c:3052 [inline]
       __se_sys_mount fs/namespace.c:3049 [inline]
       __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #2 (&fs_info->reloc_mutex){+.+.}:
       btrfs_commit_transaction+0x80b/0x2480 fs/btrfs/transaction.c:2120
       btrfs_clear_free_space_tree+0x69d/0xa50 fs/btrfs/free-space-tree.c:1255
       open_ctree.cold+0x30/0xc3d fs/btrfs/disk-io.c:3203
       btrfs_fill_super fs/btrfs/super.c:1209 [inline]
       btrfs_mount_root+0x12e5/0x1830 fs/btrfs/super.c:1613
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount+0x3c/0x60 fs/namespace.c:951
       btrfs_mount+0x23a/0xaa0 fs/btrfs/super.c:1681
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount fs/namespace.c:951 [inline]
       do_new_mount fs/namespace.c:2492 [inline]
       do_mount+0x115c/0x2f50 fs/namespace.c:2822
       ksys_mount+0xcf/0x130 fs/namespace.c:3038
       __do_sys_mount fs/namespace.c:3052 [inline]
       __se_sys_mount fs/namespace.c:3049 [inline]
       __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (sb_internal#2){.+.+}:
       sb_start_intwrite include/linux/fs.h:1626 [inline]
       start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528
       btrfs_dirty_inode+0xe3/0x210 fs/btrfs/inode.c:6165
       btrfs_update_time+0x33b/0x3d0 fs/btrfs/inode.c:6207
       update_time fs/inode.c:1675 [inline]
       touch_atime+0x23c/0x2a0 fs/inode.c:1746
       file_accessed include/linux/fs.h:2123 [inline]
       btrfs_file_mmap+0x11b/0x160 fs/btrfs/file.c:2274
       call_mmap include/linux/fs.h:1826 [inline]
       mmap_region+0xc94/0x16b0 mm/mmap.c:1757
       do_mmap+0x8e8/0x1080 mm/mmap.c:1530
       do_mmap_pgoff include/linux/mm.h:2329 [inline]
       vm_mmap_pgoff+0x197/0x200 mm/util.c:357
       ksys_mmap_pgoff+0x298/0x5a0 mm/mmap.c:1580
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&mm->mmap_sem){++++}:
       __might_fault mm/memory.c:4772 [inline]
       __might_fault+0x152/0x1d0 mm/memory.c:4757
       perf_copy_attr+0xab/0x7a0 kernel/events/core.c:10275
       _perf_ioctl+0x6aa/0x2300 kernel/events/core.c:5150
       perf_ioctl+0x55/0x80 kernel/events/core.c:5177
       vfs_ioctl fs/ioctl.c:46 [inline]
       file_ioctl fs/ioctl.c:501 [inline]
       do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
       ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
       __do_sys_ioctl fs/ioctl.c:712 [inline]
       __se_sys_ioctl fs/ioctl.c:710 [inline]
       __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
  &mm->mmap_sem --> pmus_lock --> &cpuctx_mutex

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&cpuctx_mutex);
                               lock(pmus_lock);
                               lock(&cpuctx_mutex);
  lock(&mm->mmap_sem);

 *** DEADLOCK ***

1 lock held by syz-executor506/8407:
 #0: 0000000038adf7db (&cpuctx_mutex){+.+.}, at: perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283

stack backtrace:
CPU: 0 PID: 8407 Comm: syz-executor506 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222
 check_prev_add kernel/locking/lockdep.c:1866 [inline]
 check_prevs_add kernel/locking/lockdep.c:1979 [inline]
 validate_chain kernel/locking/lockdep.c:2420 [inline]
 __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 __might_fault mm/memory.c:4772 [inline]
 __might_fault+0x152/0x1d0 mm/memory.c:4757
 perf_copy_attr+0xab/0x7a0 kernel/events/core.c:10275
 _perf_ioctl+0x6aa/0x2300 kernel/events/core.c:5150
 perf_ioctl+0x55/0x80 kernel/events/core.c:5177
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fe653a6a879
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe64c5f3208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe653af47b8 RCX: 00007fe653a6a879
RDX: 0000000000000000 RSI: 000000004008240b RDI: 0000000000000006
RBP: 00007fe653af47b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe653af47bc
R13: 00007fff44202cef R14: 00007fe64c5f3300 R15: 0000000000022000
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8401)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8366)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8357)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8346)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8356)
BTRFS info (device loop4): enabling inode map caching
BTRFS info (device loop4): force clearing of disk cache
BTRFS info (device loop4): disabling free space tree
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8416)
BTRFS info (device loop4): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8349)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8422)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8427)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8418)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8346)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (8424)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (8356)
BTRFS info (device loop4): clearing free space tree
BTRFS info (device loop4): clearing 1 ro feature flag
BTRFS info (device loop4): clearing 2 ro feature flag
BTRFS info (device loop0): enabling inode map caching
BTRFS info (device loop0): force clearing of disk cache
BTRFS info (device loop0): disabling free space tree
BTRFS info (device loop0): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8453)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8493)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8471)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8469)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (8477)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (8526)
BTRFS info (device loop0): clearing free space tree
BTRFS info (device loop0): clearing 1 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8494)
BTRFS info (device loop0): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8493)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8512)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8530)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8529)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8526)
BTRFS info (device loop4): enabling inode map caching
BTRFS info (device loop4): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (8536)
BTRFS info (device loop4): disabling free space tree
BTRFS info (device loop4): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8555)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8551)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8493)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8557)
BTRFS info (device loop4): clearing free space tree
BTRFS info (device loop4): clearing 1 ro feature flag
BTRFS info (device loop4): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8570)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8526)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (8575)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (8493)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8600)
BTRFS info (device loop3): enabling inode map caching
BTRFS info (device loop3): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS info (device loop3): disabling free space tree
BTRFS info (device loop3): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8608)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8620)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8630)
BTRFS info (device loop3): clearing free space tree
BTRFS info (device loop3): clearing 1 ro feature flag
BTRFS info (device loop3): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8632)
BTRFS info (device loop1): enabling inode map caching
BTRFS info (device loop1): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS info (device loop1): disabling free space tree
BTRFS info (device loop1): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8643)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8630)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8662)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8667)
BTRFS info (device loop1): clearing free space tree
BTRFS info (device loop1): clearing 1 ro feature flag
BTRFS info (device loop1): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS info (device loop2): enabling inode map caching
BTRFS info (device loop2): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8701)
BTRFS info (device loop2): disabling free space tree
BTRFS info (device loop2): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8682)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8493)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8713)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8630)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8718)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8508)
BTRFS info (device loop2): clearing free space tree
BTRFS info (device loop2): clearing 1 ro feature flag
BTRFS info (device loop2): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (8734)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8746)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8493)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8765)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8630)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8763)
BTRFS info (device loop0): enabling inode map caching
BTRFS info (device loop0): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8498)
BTRFS info (device loop0): disabling free space tree
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8526)
BTRFS info (device loop0): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8782)
BTRFS info (device loop0): clearing free space tree
BTRFS info (device loop0): clearing 1 ro feature flag
BTRFS info (device loop0): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8792)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8835)
BTRFS info (device loop1): enabling inode map caching
BTRFS info (device loop1): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8803)
BTRFS info (device loop1): disabling free space tree
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8843)
BTRFS info (device loop1): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8808)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8839)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8833)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8835)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8841)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8843)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8854)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8891)
BTRFS info (device loop1): clearing free space tree
BTRFS info (device loop1): clearing 1 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8876)
BTRFS info (device loop1): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8835)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8875)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8839)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8888)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8891)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8835)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8898)
BTRFS info (device loop5): enabling inode map caching
BTRFS info (device loop5): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8843)
BTRFS info (device loop5): disabling free space tree
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8909)
BTRFS info (device loop5): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8839)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8914)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8835)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8919)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (8843)
BTRFS info (device loop5): clearing free space tree
BTRFS info (device loop5): clearing 1 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8929)
BTRFS info (device loop5): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8839)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8941)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8891)
BTRFS info (device loop1): enabling inode map caching
BTRFS info (device loop1): force clearing of disk cache
BTRFS info (device loop1): disabling free space tree
BTRFS info (device loop1): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (8961)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (8971)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8993)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (8964)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (8997)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (9003)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (8978)
BTRFS info (device loop1): clearing free space tree
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (9024)
BTRFS info (device loop1): clearing 1 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (9007)
BTRFS info (device loop1): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8993)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (8987)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (8997)
BTRFS info (device loop0): enabling inode map caching
BTRFS info (device loop0): force clearing of disk cache
BTRFS info (device loop0): disabling free space tree
BTRFS info (device loop0): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (9029)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (8997)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (9022)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor506 (9038)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (9024)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (9045)
BTRFS warning (device <unknown>): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (8993)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (9003)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (9054)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (8997)
BTRFS info (device loop0): clearing free space tree
BTRFS info (device loop0): clearing 1 ro feature flag
BTRFS info (device loop0): clearing 2 ro feature flag
BTRFS info (device loop3): enabling inode map caching
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (9082)
BTRFS info (device loop3): force clearing of disk cache
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (9086)
BTRFS info (device loop3): disabling free space tree
BTRFS info (device loop3): has skinny extents
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (9112)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (9108)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (9106)
BTRFS warning (device <unknown>): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor506 (9091)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor506 (9099)
BTRFS warning (device <unknown>): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (9118)
BTRFS info (device loop3): clearing free space tree
BTRFS info (device loop3): clearing 1 ro feature flag
BTRFS info (device loop3): clearing 2 ro feature flag
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor506 (9117)
BTRFS warning (device <unknown>): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (9106)
BTRFS warning (device <unknown>): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor506 (9132)
BTRFS warning (device <unknown>): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor506 (9121)

Crashes (51):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/01/06 09:11 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/06 14:14 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/06 08:03 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/06 02:07 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/05 21:44 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/05 20:21 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/05 09:33 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/05 04:36 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/03/04 12:33 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/02/26 15:28 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/02/12 16:05 linux-4.19.y 3f8a27f9e27b 93e26d60 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/02/12 15:41 linux-4.19.y 3f8a27f9e27b 93e26d60 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/02/05 14:33 linux-4.19.y 3f8a27f9e27b be607b78 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/02/02 23:51 linux-4.19.y 3f8a27f9e27b 16d19e30 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/26 04:02 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/19 22:18 linux-4.19.y 3f8a27f9e27b 71197f3a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/19 04:56 linux-4.19.y 3f8a27f9e27b 4620c2d9 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/13 02:43 linux-4.19.y 3f8a27f9e27b 96166539 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/10 01:15 linux-4.19.y 3f8a27f9e27b 48bc529a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/09 11:53 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/08 21:31 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/08 19:49 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/07 10:46 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/07 09:50 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/06 08:15 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/05 06:49 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/04 18:53 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/04 13:42 linux-4.19.y 3f8a27f9e27b 1dac8c7a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/02 23:07 linux-4.19.y 3f8a27f9e27b ab32d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2023/01/01 16:02 linux-4.19.y 3f8a27f9e27b ab32d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/31 12:49 linux-4.19.y 3f8a27f9e27b ab32d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/29 03:29 linux-4.19.y 3f8a27f9e27b 44712fbc .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/27 12:21 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/25 17:16 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/25 15:49 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/25 03:55 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/24 08:31 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/20 09:15 linux-4.19.y 3f8a27f9e27b c52b2efb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/19 07:40 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/13 17:39 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/12 18:24 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/12 16:32 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/08 13:06 linux-4.19.y 3f8a27f9e27b d88f3abb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/07 21:17 linux-4.19.y 3f8a27f9e27b d88f3abb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/05 00:46 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/04 01:10 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/03 03:30 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/01 18:15 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/01 16:14 linux-4.19.y 3f8a27f9e27b 4c2a66e8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
2022/12/01 07:26 linux-4.19.y 3f8a27f9e27b 4c2a66e8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 possible deadlock in perf_event_ctx_lock_nested
* Struck through repros no longer work on HEAD.