| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH] io_uring/fdinfo: cap SQ iteration at max SQ entries | 1 (1) | 2025/10/28 01:12 |
| [syzbot] [io-uring?] INFO: task hung in io_uring_del_tctx_node (5) | 6 (8) | 2025/10/28 01:09 |
syzbot |
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| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH] io_uring/fdinfo: cap SQ iteration at max SQ entries | 1 (1) | 2025/10/28 01:12 |
| [syzbot] [io-uring?] INFO: task hung in io_uring_del_tctx_node (5) | 6 (8) | 2025/10/28 01:09 |
| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| linux-5.15 | INFO: task hung in io_uring_del_tctx_node | 1 | 2 | 1009d | 1012d | 0/3 | auto-obsoleted due to no activity on 2023/08/23 09:02 | |||
| upstream | INFO: task hung in io_uring_del_tctx_node (3) io-uring | 1 | 1 | 574d | 574d | 0/29 | auto-obsoleted due to no activity on 2024/10/02 07:14 | |||
| upstream | INFO: task hung in io_uring_del_tctx_node (4) io-uring | 1 | C | done | 8 | 245d | 241d | 0/29 | closed as invalid on 2025/06/02 13:41 | |
| upstream | INFO: task hung in io_uring_del_tctx_node io-uring fs | 1 | C | unreliable | 37 | 1424d | 1588d | 20/29 | fixed on 2022/03/08 16:11 | |
| linux-5.15 | INFO: task hung in io_uring_del_tctx_node (2) | 1 | 4 | 74d | 189d | 0/3 | upstream: reported on 2025/07/24 10:20 | |||
| upstream | INFO: task hung in io_uring_del_tctx_node (2) io-uring | 1 | C | error | error | 20 | 1053d | 1415d | 0/29 | auto-obsoleted due to no activity on 2023/07/30 22:24 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2025/10/27 22:25 | 39m | hdanton@sina.com | patch | linux-next | OK log |
INFO: task syz.1.18:6077 blocked for more than 143 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.18 state:D stack:28088 pid:6077 tgid:6075 ppid:5942 task_flags:0x400548 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5258 [inline]
__schedule+0x150e/0x5070 kernel/sched/core.c:6866
__schedule_loop kernel/sched/core.c:6948 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6963
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7020
__mutex_lock_common kernel/locking/mutex.c:692 [inline]
__mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776
io_uring_del_tctx_node+0xf0/0x2c0 io_uring/tctx.c:179
io_uring_clean_tctx+0xd4/0x1a0 io_uring/tctx.c:195
io_uring_cancel_generic+0x6ca/0x7d0 io_uring/cancel.c:646
io_uring_files_cancel include/linux/io_uring.h:19 [inline]
do_exit+0x34f/0x25b0 kernel/exit.c:911
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8bba38f749
RSP: 002b:00007f8bbb1b50e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f8bba5e5fa8 RCX: 00007f8bba38f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8bba5e5fa8
RBP: 00007f8bba5e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8bba5e6038 R14: 00007ffdeae09510 R15: 00007ffdeae095f8
</TASK>
INFO: task syz.2.19:6078 blocked for more than 145 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.19 state:D stack:27768 pid:6078 tgid:6076 ppid:5951 task_flags:0x400548 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5258 [inline]
__schedule+0x150e/0x5070 kernel/sched/core.c:6866
__schedule_loop kernel/sched/core.c:6948 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6963
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7020
__mutex_lock_common kernel/locking/mutex.c:692 [inline]
__mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776
io_uring_del_tctx_node+0xf0/0x2c0 io_uring/tctx.c:179
io_uring_clean_tctx+0xd4/0x1a0 io_uring/tctx.c:195
io_uring_cancel_generic+0x6ca/0x7d0 io_uring/cancel.c:646
io_uring_files_cancel include/linux/io_uring.h:19 [inline]
do_exit+0x34f/0x25b0 kernel/exit.c:911
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbaaef8f749
RSP: 002b:00007fbaafde40e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fbaaf1e5fa8 RCX: 00007fbaaef8f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbaaf1e5fa8
RBP: 00007fbaaf1e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbaaf1e6038 R14: 00007ffd1d575f40 R15: 00007ffd1d576028
</TASK>
INFO: task syz.3.20:6082 blocked for more than 147 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.20 state:D stack:28088 pid:6082 tgid:6081 ppid:5954 task_flags:0x400548 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5258 [inline]
__schedule+0x150e/0x5070 kernel/sched/core.c:6866
__schedule_loop kernel/sched/core.c:6948 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6963
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7020
__mutex_lock_common kernel/locking/mutex.c:692 [inline]
__mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776
io_uring_del_tctx_node+0xf0/0x2c0 io_uring/tctx.c:179
io_uring_clean_tctx+0xd4/0x1a0 io_uring/tctx.c:195
io_uring_cancel_generic+0x6ca/0x7d0 io_uring/cancel.c:646
io_uring_files_cancel include/linux/io_uring.h:19 [inline]
do_exit+0x34f/0x25b0 kernel/exit.c:911
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f361a78f749
RSP: 002b:00007f361b6fc0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f361a9e5fa8 RCX: 00007f361a78f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f361a9e5fa8
RBP: 00007f361a9e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f361a9e6038 R14: 00007ffddd550d00 R15: 00007ffddd550de8
</TASK>
INFO: task syz.0.17:6086 blocked for more than 149 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17 state:D stack:27928 pid:6086 tgid:6084 ppid:5946 task_flags:0x400548 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5258 [inline]
__schedule+0x150e/0x5070 kernel/sched/core.c:6866
__schedule_loop kernel/sched/core.c:6948 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6963
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7020
__mutex_lock_common kernel/locking/mutex.c:692 [inline]
__mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776
io_uring_del_tctx_node+0xf0/0x2c0 io_uring/tctx.c:179
io_uring_clean_tctx+0xd4/0x1a0 io_uring/tctx.c:195
io_uring_cancel_generic+0x6ca/0x7d0 io_uring/cancel.c:646
io_uring_files_cancel include/linux/io_uring.h:19 [inline]
do_exit+0x34f/0x25b0 kernel/exit.c:911
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4c678f749
RSP: 002b:00007fd4c76f50e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fd4c69e5fa8 RCX: 00007fd4c678f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd4c69e5fa8
RBP: 00007fd4c69e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd4c69e6038 R14: 00007ffc3a032110 R15: 00007ffc3a0321f8
</TASK>
INFO: task syz.4.21:6090 blocked for more than 151 seconds.
Not tainted syzkaller #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.21 state:D stack:28056 pid:6090 tgid:6089 ppid:5952 task_flags:0x400548 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5258 [inline]
__schedule+0x150e/0x5070 kernel/sched/core.c:6866
__schedule_loop kernel/sched/core.c:6948 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6963
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7020
__mutex_lock_common kernel/locking/mutex.c:692 [inline]
__mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776
io_uring_del_tctx_node+0xf0/0x2c0 io_uring/tctx.c:179
io_uring_clean_tctx+0xd4/0x1a0 io_uring/tctx.c:195
io_uring_cancel_generic+0x6ca/0x7d0 io_uring/cancel.c:646
io_uring_files_cancel include/linux/io_uring.h:19 [inline]
do_exit+0x34f/0x25b0 kernel/exit.c:911
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/12/24 04:29 | linux-next | cc3aa43b44bd | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in io_uring_del_tctx_node | |
| 2025/10/25 07:15 | linux-next | 72fb0170ef1f | c0460fcd | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci-upstream-rust-kasan-gce | INFO: task hung in io_uring_del_tctx_node | |
| 2025/10/25 04:48 | linux-next | 72fb0170ef1f | c0460fcd | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in io_uring_del_tctx_node | |
| 2025/11/27 14:31 | upstream | 4941a17751c9 | d6526ea3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/11/24 07:42 | upstream | ac3fd01e4c1e | 4fb8ef37 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/11/11 01:06 | upstream | 4ea7c1717f3f | 4e1406b4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/11/01 18:05 | upstream | ba36dd5ee6fd | 2c50b6a9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/10/26 03:54 | upstream | 9bb956508c9d | c0460fcd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/10/25 03:04 | upstream | 6fab32bb6508 | c0460fcd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/07/11 16:49 | upstream | bc9ff192a6c9 | 3cda49cf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/06/28 19:15 | upstream | 35e261cd95dd | fc9d8ee5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/06/23 05:12 | upstream | b67ec639010f | d6cdfb8a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/07/24 06:05 | upstream | 01a412d06bc5 | 0c1d6ded | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-386 | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/08/30 03:27 | upstream | fb679c832b64 | 807a3b61 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu2-arm32 | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/10/27 03:46 | linux-next | 72fb0170ef1f | c0460fcd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/10/25 02:20 | linux-next | 72fb0170ef1f | c0460fcd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/10/22 18:08 | linux-next | aaa9c3550b60 | 252fbbad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-rust-kasan-gce | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/10/19 08:31 | linux-next | 93f3bab4310d | 1c8c8cd8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in io_uring_del_tctx_node | ||
| 2025/09/17 20:00 | git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git for-next | 4d4a3cc7f280 | e2beed91 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu2-riscv64 | INFO: task hung in io_uring_del_tctx_node |