INFO: task hung in devtmpfs_submit_req

Status: auto-obsoleted due to no activity on 2025/01/13 01:20
Subsystems: kernel
[Documentation on labels]
First crash: 671d, last: 671d
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in devtmpfs_submit_req (2) kernel 1 syz error error 69 478d 479d 0/29 auto-obsoleted due to no activity on 2025/07/05 02:58

Sample crash report:
INFO: task kworker/0:3:9532 blocked for more than 425 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00002-gcfb10de18538 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3     state:D stack:0     pid:9532  tgid:9532  ppid:2      flags:0x00000000
Workqueue: usb_hub_wq hub_event
Call Trace:
[<ffffffff85fe3a64>] context_switch kernel/sched/core.c:5315 [inline]
[<ffffffff85fe3a64>] __schedule+0xd5a/0x3886 kernel/sched/core.c:6675
[<ffffffff85fe6654>] __schedule_loop kernel/sched/core.c:6752 [inline]
[<ffffffff85fe6654>] schedule+0xc4/0x324 kernel/sched/core.c:6767
[<ffffffff85ff9402>] schedule_timeout+0x1e2/0x296 kernel/time/timer.c:2591
[<ffffffff85fe8032>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff85fe8032>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff85fe8338>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff85fe8338>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff82832664>] devtmpfs_submit_req+0xbe/0x11c drivers/base/devtmpfs.c:107
[<ffffffff828331fc>] devtmpfs_delete_node+0xee/0x148 drivers/base/devtmpfs.c:156

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/15 01:10 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes cfb10de18538 b01b6661 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-riscv64 INFO: task hung in devtmpfs_submit_req
* Struck through repros no longer work on HEAD.