| Date | Name | Commit | Repro | Result |
|---|---|---|---|---|
| 2025/11/25 | upstream (ToT) | 30f09200cc4a | C | [report] INFO: task hung in corrupted |
| 2026/01/09 | upstream (ToT) | 372800cb95a3 | C | Failed due to an error; will retry later |
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| Date | Name | Commit | Repro | Result |
|---|---|---|---|---|
| 2025/11/25 | upstream (ToT) | 30f09200cc4a | C | [report] INFO: task hung in corrupted |
| 2026/01/09 | upstream (ToT) | 372800cb95a3 | C | Failed due to an error; will retry later |
| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| linux-6.1 | INFO: task hung in del_device_store (2) origin:upstream | 1 | syz | 3 | 8d18h | 17d | 0/3 | upstream: reported syz repro on 2026/01/05 21:06 | ||
| linux-5.15 | INFO: task hung in del_device_store | 1 | 42 | 188d | 560d | 0/3 | auto-obsoleted due to no activity on 2025/10/26 20:35 | |||
| linux-5.15 | INFO: task hung in del_device_store (2) | 1 | 5 | 3d02h | 63d | 0/3 | upstream: reported on 2025/11/20 15:49 | |||
| linux-6.1 | INFO: task hung in del_device_store | 1 | 31 | 155d | 566d | 0/3 | auto-obsoleted due to no activity on 2025/11/28 01:25 | |||
| upstream | INFO: task hung in del_device_store net | 1 | C | error | 1959 | 2d17h | 1054d | 0/29 | upstream: reported C repro on 2023/03/05 17:44 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2025/12/25 17:29 | 2h16m | bisect fix | linux-6.6.y | OK (0) job log log |
INFO: task syz-executor:5898 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22184 pid:5898 ppid:1 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6833
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b7/0xcc0 kernel/locking/mutex.c:747
del_device_store+0xd2/0x360 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3b6/0x520 fs/kernfs/file.c:352
call_write_iter include/linux/fs.h:2018 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x43b/0x940 fs/read_write.c:584
ksys_write+0x147/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f87dd78e1ff
RSP: 002b:00007fffacbb0190 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f87dd78e1ff
RDX: 0000000000000001 RSI: 00007fffacbb01e0 RDI: 0000000000000005
RBP: 00007f87dd8152cb R08: 0000000000000000 R09: 00007fffacbaffe7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007fffacbb01e0 R14: 00007f87de514620 R15: 0000000000000003
</TASK>
INFO: task syz-executor:5903 blocked for more than 150 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22280 pid:5903 ppid:1 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6833
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b7/0xcc0 kernel/locking/mutex.c:747
nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1675
device_remove drivers/base/dd.c:567 [inline]
__device_release_driver drivers/base/dd.c:1272 [inline]
device_release_driver_internal+0x468/0x7a0 drivers/base/dd.c:1295
bus_remove_device+0x342/0x400 drivers/base/bus.c:576
device_del+0x50b/0x900 drivers/base/core.c:3872
device_unregister+0x20/0xc0 drivers/base/core.c:3913
nsim_bus_dev_del drivers/net/netdevsim/bus.c:310 [inline]
del_device_store+0x2ab/0x360 drivers/net/netdevsim/bus.c:219
kernfs_fop_write_iter+0x3b6/0x520 fs/kernfs/file.c:352
call_write_iter include/linux/fs.h:2018 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x43b/0x940 fs/read_write.c:584
ksys_write+0x147/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fcfaed8e1ff
RSP: 002b:00007fff39715930 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcfaed8e1ff
RDX: 0000000000000001 RSI: 00007fff39715980 RDI: 0000000000000005
RBP: 00007fcfaee152cb R08: 0000000000000000 R09: 00007fff39715787
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007fff39715980 R14: 00007fcfafb14620 R15: 0000000000000003
</TASK>
INFO: task syz-executor:5905 blocked for more than 150 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22280 pid:5905 ppid:1 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6833
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b7/0xcc0 kernel/locking/mutex.c:747
del_device_store+0xd2/0x360 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3b6/0x520 fs/kernfs/file.c:352
call_write_iter include/linux/fs.h:2018 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x43b/0x940 fs/read_write.c:584
ksys_write+0x147/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026/01/14 20:26 | linux-6.6.y | c596736dadab | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci2-linux-6-6-kasan | INFO: task hung in del_device_store | |
| 2025/11/21 16:29 | linux-6.6.y | 0a805b6ea8cd | 280ea308 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci2-linux-6-6-kasan-perf | INFO: task hung in del_device_store | |
| 2025/11/21 00:13 | linux-6.6.y | 0a805b6ea8cd | 2cc4c24a | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci2-linux-6-6-kasan-perf | INFO: task hung in del_device_store |