Hi,
I am fuzzing the kernel 4.13-rc7 with Syzkaller with Reiserfs. I am
getting the following crash:
INFO: task kworker/0:3:1103 blocked for more than 120 seconds.
Here is the full stack trace. I noticed that there are a few tasks
holding a sbi->lock. Below are a report and a log of all the programs
executing at the time of the incident.
Report: https://pastebin.com/uGTAw45E
Logs: https://pastebin.com/EaiE0JLf
Kernel Configs: https://pastebin.com/i6URdADw
I don't have a reproducer yet and any assistance would be appreciated.
Regards,
Shankara
Hi,
I have a reproducer program. It takes about 3-5 minutes to trigger the
hang. The only calls are mmap, open, write, and readahead and the
writes are fairly small (512 bytes).
Reproducer Program: https://pastebin.com/cx1cgABc
Report: https://pastebin.com/uGTAw45E
Logs: https://pastebin.com/EaiE0JLf
Kernel Configs: https://pastebin.com/i6URdADw
Regards,
Shankara
On Fri, Sep 29, 2017 at 11:56 PM, Shankara Pailoor <[email protected]> wrote:
> Hi,
>
> I am fuzzing the kernel 4.13-rc7 with Syzkaller with Reiserfs. I am
> getting the following crash:
>
> INFO: task kworker/0:3:1103 blocked for more than 120 seconds.
>
>
> Here is the full stack trace. I noticed that there are a few tasks
> holding a sbi->lock. Below are a report and a log of all the programs
> executing at the time of the incident.
>
>
> Report: https://pastebin.com/uGTAw45E
> Logs: https://pastebin.com/EaiE0JLf
> Kernel Configs: https://pastebin.com/i6URdADw
>
> I don't have a reproducer yet and any assistance would be appreciated.
>
> Regards,
> Shankara