linux-kernel - linux-next boot error (2)

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Date:   Thu, 06 Sep 2018 01:21:03 -0700
From:   syzbot <syzbot+762a577f56cfb1574647@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, alexander.levin@...izon.com,
        dhowells@...hat.com, linux-kernel@...r.kernel.org,
        linux@...inikbrodowski.net, luc.vanoostenryck@...il.com,
        nikolaus.voss@...wensteinmedical.de, sfr@...b.auug.org.au,
        syzkaller-bugs@...glegroups.com
Subject: linux-next boot error (2)

Hello,

syzbot found the following crash on:

HEAD commit:    509d1f0c294a Add linux-next specific files for 20180906
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=157b857a400000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d1a648893bbc933
dashboard link: https://syzkaller.appspot.com/bug?extid=762a577f56cfb1574647
compiler:       gcc (GCC) 8.0.1 20180413 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+762a577f56cfb1574647@...kaller.appspotmail.com

kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) driver: sd
   0801         2096128 sda1 24d8ab2f-01

1f00             128 mtdblock0
  (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on  
unknown-block(8,1)
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc2-next-20180906+ #60
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS  
Google 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
  panic+0x238/0x4e7 kernel/panic.c:184
  mount_block_root+0x61f/0x71f init/do_mounts.c:442
  mount_root+0x2d0/0x317 init/do_mounts.c:562
  prepare_namespace+0x26c/0x2ab init/do_mounts.c:621
  kernel_init_freeable+0x590/0x5ae init/main.c:1163
  kernel_init+0x11/0x1b3 init/main.c:1063
  ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415
Dumping ftrace buffer:
    (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..


---
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