Messages in this thread | | | Date | Tue, 11 Jan 2022 08:33:23 +0100 | From | Greg Kroah-Hartman <> | Subject | Re: INFO: task hung in devtmpfs_submit_req |
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On Tue, Jan 11, 2022 at 10:41:06AM +0800, cruise k wrote: > Hi, > > Syzkaller found the following issue: > > HEAD commit: 75acfdb Linux 5.16-rc8 > git tree: upstream > console output: https://pastebin.com/raw/gwHBn2EB > kernel config: https://pastebin.com/raw/XsnKfdRt > > And hope the report log can help you. > > INFO: task kworker/6:4:13959 blocked for more than 145 seconds. > Not tainted 5.16.0-rc8+ #10 > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > task:kworker/6:4 state:D stack:26944 pid:13959 ppid: 2 flags:0x00004000 > Workqueue: usb_hub_wq hub_event > Call Trace: > <TASK> > __schedule+0xcd9/0x2550 > schedule+0xd2/0x260 > schedule_timeout+0x5e5/0x890 > wait_for_completion+0x17b/0x280 > devtmpfs_submit_req+0xa8/0x100 > devtmpfs_delete_node+0xe1/0x150 > device_del+0xadf/0xe80 > usb_disconnect+0x4a4/0x8c0 > hub_event+0x199c/0x4090 > process_one_work+0x9df/0x16a0 > worker_thread+0x90/0xe20 > kthread+0x405/0x4f0 > ret_from_fork+0x1f/0x30 > </TASK>
Wonderful, please submit a change to resolve this issue.
thanks,
greg k-h
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