linux-kernel - Hung Task Linux 4.13-rc7 Reiserfs

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Date:   Fri, 29 Sep 2017 23:56:30 -0400
From:   Shankara Pailoor <sp3485@...umbia.edu>
To:     LKML <linux-kernel@...r.kernel.org>, reiserfs-devel@...r.kernel.org
Cc:     Andrew Zhu Aday <andrew.aday@...umbia.edu>,
        syzkaller <syzkaller@...glegroups.com>
Subject: Hung Task Linux 4.13-rc7 Reiserfs

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