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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| linux-5.15 | INFO: task hung in fqdir_free_fn | 1 | 1 | 420d | 420d | 0/3 | auto-obsoleted due to no activity on 2024/11/01 18:36 | |||
| upstream | INFO: task hung in fqdir_free_fn net | 1 | 4 | 314d | 424d | 0/29 | auto-obsoleted due to no activity on 2025/02/05 05:14 |
INFO: task kworker/1:0:31 blocked for more than 122 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:0 pid:31 tgid:31 ppid:2 flags:0x00004000
Workqueue: events fqdir_free_fn
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_timeout+0xb2/0x3a0 kernel/time/timer.c:2595
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common+0x359/0x630 kernel/sched/completion.c:127
wait_for_completion+0x1c/0x40 kernel/sched/completion.c:148
rcu_barrier+0x415/0x530 kernel/rcu/tree.c:4657
fqdir_free_fn+0x36/0x150 net/ipv4/inet_fragment.c:167
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319
worker_thread+0xc58/0x1250 kernel/workqueue.c:3400
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
INFO: task syz.7.4461:15320 blocked for more than 123 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.4461 state:D stack:0 pid:15320 tgid:15316 ppid:13097 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_timeout+0xb2/0x3a0 kernel/time/timer.c:2595
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common+0x359/0x630 kernel/sched/completion.c:127
wait_for_completion_state+0x19/0x40 kernel/sched/completion.c:264
__wait_rcu_gp+0x296/0x2c0 kernel/rcu/update.c:514
synchronize_rcu_normal+0x113/0x160 kernel/rcu/tree.c:4043
synchronize_rcu+0x98/0x2e0 kernel/rcu/tree.c:4121
bcm_release+0x638/0x8d0 net/can/bcm.c:1642
__sock_release net/socket.c:659 [inline]
sock_close+0xdd/0x280 net/socket.c:1427
__fput+0x1fe/0xa00 fs/file_table.c:429
____fput+0x20/0x30 fs/file_table.c:457
task_work_run+0x1e3/0x250 kernel/task_work.c:240
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0x9bc/0x2630 kernel/exit.c:953
do_group_exit+0x22a/0x300 kernel/exit.c:1095
get_signal+0x139d/0x14f0 kernel/signal.c:2933
arch_do_signal_or_restart+0x96/0x720 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x58/0xb0 kernel/entry/common.c:218
do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f2f1c38eba9
RSP: 002b:00007f2f1d255038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffea RBX: 00007f2f1c5d6090 RCX: 00007f2f1c38eba9
RDX: 0000000000000000 RSI: 0000200000000300 RDI: 0000000000000004
RBP: 00007f2f1c411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2f1c5d6128 R14: 00007f2f1c5d6090 R15: 00007fff7cc91768
</TASK>
INFO: task syz.8.4464:15323 blocked for more than 123 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.4464 state:D stack:0 pid:15323 tgid:15323 ppid:15081 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7944
__mutex_lock_common kernel/locking/mutex.c:707 [inline]
__mutex_lock+0x81e/0x1b50 kernel/locking/mutex.c:803
__mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
mutex_lock+0x102/0x1c0 kernel/locking/mutex.c:285
rcu_barrier+0x4d/0x530 kernel/rcu/tree.c:4589
kvm_mmu_uninit_tdp_mmu+0x1df/0x210 arch/x86/kvm/mmu/tdp_mmu.c:51
kvm_mmu_uninit_vm+0x27/0x60 arch/x86/kvm/mmu/mmu.c:6572
kvm_arch_destroy_vm+0x383/0x410 arch/x86/kvm/x86.c:12898
kvm_destroy_vm virt/kvm/kvm_main.c:1355 [inline]
kvm_put_kvm+0xb04/0x12c0 virt/kvm/kvm_main.c:1392
kvm_vm_release+0x47/0x70 virt/kvm/kvm_main.c:1415
__fput+0x1fe/0xa00 fs/file_table.c:429
____fput+0x20/0x30 fs/file_table.c:457
task_work_run+0x1e3/0x250 kernel/task_work.c:240
resume_user_mode_work+0x36/0x50 include/linux/resume_user_mode.h:50
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x64/0xb0 kernel/entry/common.c:218
do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb2b358eba9
RSP: 002b:00007ffc06a28be8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000005ed77 RCX: 00007fb2b358eba9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fb2b37d7da0 R08: 0000000000000001 R09: 0000000f06a28edf
R10: 0000001b32120000 R11: 0000000000000246 R12: 00007fb2b37d5fac
R13: 00007fb2b37d5fa0 R14: ffffffffffffffff R15: 00007ffc06a28d00
</TASK>
INFO: task syz.0.4463:15324 blocked for more than 124 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.4463 state:D stack:0 pid:15324 tgid:15324 ppid:13149 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7944
__mutex_lock_common kernel/locking/mutex.c:707 [inline]
__mutex_lock+0x81e/0x1b50 kernel/locking/mutex.c:803
__mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1134
mutex_lock+0x102/0x1c0 kernel/locking/mutex.c:285
rcu_barrier+0x4d/0x530 kernel/rcu/tree.c:4589
kvm_mmu_uninit_tdp_mmu+0x1df/0x210 arch/x86/kvm/mmu/tdp_mmu.c:51
kvm_mmu_uninit_vm+0x27/0x60 arch/x86/kvm/mmu/mmu.c:6572
kvm_arch_destroy_vm+0x383/0x410 arch/x86/kvm/x86.c:12898
kvm_destroy_vm virt/kvm/kvm_main.c:1355 [inline]
kvm_put_kvm+0xb04/0x12c0 virt/kvm/kvm_main.c:1392
kvm_vm_release+0x47/0x70 virt/kvm/kvm_main.c:1415
__fput+0x1fe/0xa00 fs/file_table.c:429
____fput+0x20/0x30 fs/file_table.c:457
task_work_run+0x1e3/0x250 kernel/task_work.c:240
resume_user_mode_work+0x36/0x50 include/linux/resume_user_mode.h:50
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x64/0xb0 kernel/entry/common.c:218
do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7ff34998eba9
RSP: 002b:00007ffcec637bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000005ed8a RCX: 00007ff34998eba9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007ff349bd7da0 R08: 0000000000000001 R09: 00000009ec637eaf
R10: 0000001b31c20000 R11: 0000000000000246 R12: 00007ff349bd5fac
R13: 00007ff349bd5fa0 R14: ffffffffffffffff R15: 00007ffcec637cd0
</TASK>
INFO: task syz.4.4465:15327 blocked for more than 126 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.4465 state:D stack:0 pid:15327 tgid:15325 ppid:15030 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_timeout+0xb2/0x3a0 kernel/time/timer.c:2595
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common+0x359/0x630 kernel/sched/completion.c:127
wait_for_completion_state+0x19/0x40 kernel/sched/completion.c:264
__wait_rcu_gp+0x296/0x2c0 kernel/rcu/update.c:514
synchronize_rcu_normal+0x113/0x160 kernel/rcu/tree.c:4043
synchronize_rcu+0x98/0x2e0 kernel/rcu/tree.c:4121
kvm_vcpu_ioctl+0xc49/0xee0 virt/kvm/kvm_main.c:4511
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0x132/0x1b0 fs/ioctl.c:893
__x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fad35b8eba9
RSP: 002b:00007fad3695f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fad35dd5fa0 RCX: 00007fad35b8eba9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000008
RBP: 00007fad35c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fad35dd6038 R14: 00007fad35dd5fa0 R15: 00007ffc2548d528
</TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 064bd8e71db8281f775729d9237f740d6717dea5
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
<TASK>
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
watchdog+0xd8f/0xed0 kernel/hung_task.c:423
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 17 Comm: ksoftirqd/0 Not tainted syzkaller #0 064bd8e71db8281f775729d9237f740d6717dea5
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:br_flood+0x1a8/0x730 net/bridge/br_forward.c:219
Code: 8b 4d 98 48 3b 19 0f 84 f2 00 00 00 e8 d1 0c 86 fc 44 8b 75 d4 e9 f6 03 00 00 49 8d 5f 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 ae 40 dc fc 48 8b 1b be 00 08 00 00 48 21 de 31
RSP: 0018:ffffc90000117500 EFLAGS: 00000246
RAX: 1ffff1102aa41005 RBX: ffff888155208028 RCX: 0000000000000005
RDX: ffffffff84ffdfb1 RSI: ffffffff87b4e3e0 RDI: 0000000000000001
RBP: ffffc900001175b0 R08: ffff888103655f00 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000100 R12: ffff88813f150b80
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888155208018
FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562d113fdb90 CR3: 00000001205ec000 CR4: 00000000003526b0
Call Trace:
<TASK>
br_handle_frame_finish+0x12bb/0x1720 net/bridge/br_input.c:215
nf_hook_bridge_pre net/bridge/br_input.c:301 [inline]
br_handle_frame+0x5a6/0xba0 net/bridge/br_input.c:424
__netif_receive_skb_core+0xf48/0x3940 net/core/dev.c:5651
__netif_receive_skb_one_core net/core/dev.c:5755 [inline]
__netif_receive_skb net/core/dev.c:5870 [inline]
process_backlog+0x3e5/0xae0 net/core/dev.c:6206
__napi_poll+0xd0/0x610 net/core/dev.c:6857
napi_poll net/core/dev.c:6926 [inline]
net_rx_action+0x584/0xce0 net/core/dev.c:7048
handle_softirqs+0x1ab/0x630 kernel/softirq.c:621
run_ksoftirqd+0x20/0x30 kernel/softirq.c:999
smpboot_thread_fn+0x490/0x8c0 kernel/smpboot.c:164
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
net_ratelimit: 22069 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/09/17 16:35 | android16-6.12 | c882e6efcea1 | e2beed91 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/07 21:20 | android16-6.12 | ad3375325ca2 | d291dd2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/07 10:03 | android16-6.12 | ad3375325ca2 | d291dd2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/04 22:29 | android16-6.12 | 3a1f856821c2 | d291dd2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/04 01:18 | android16-6.12 | f67a8c04c720 | 96a211bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/03 18:41 | android16-6.12 | 53e4390f692f | 96a211bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/03 11:57 | android16-6.12 | 53e4390f692f | 96a211bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/03 08:50 | android16-6.12 | 4ae522d0f966 | 96a211bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/01 17:38 | android16-6.12 | 2e5a4bace74a | 807a3b61 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/09/01 13:34 | android16-6.12 | 2e5a4bace74a | 807a3b61 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/23 16:39 | android16-6.12 | fc2476d0896a | e1dd4f22 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/23 13:35 | android16-6.12 | fc2476d0896a | e1dd4f22 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/19 16:02 | android16-6.12 | 73009db42b37 | 7117feec | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/18 00:01 | android16-6.12 | e973ddb125a8 | 0d1223f1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/17 21:04 | android16-6.12 | e973ddb125a8 | 0d1223f1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/17 07:00 | android16-6.12 | 3bff0858a069 | 44f8051e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/07 16:03 | android16-6.12 | e87018c5f9d0 | 4f67c4ae | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/03 08:46 | android16-6.12 | 06ca12d7d229 | 115ceea7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/07/01 20:02 | android16-6.12 | 648383294760 | 091a06cd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/06/30 21:33 | android16-6.12 | 668635cd345a | 6e83b42d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn | ||
| 2025/06/21 10:51 | android16-6.12 | d9fd901baa98 | d6cdfb8a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-android-6-12-rust | INFO: task hung in fqdir_free_fn |