android-4.9 test error

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 961ef0a0 ANDROID: sdcardfs: Add option to not link obb
git tree: android-4.9
console output: https://syzkaller.appspot.com/x/log.txt?x=173cb87d400000
kernel config: https://syzkaller.appspot.com/x/.config?x=22a5ba9f73b6da1d
dashboard link: https://syzkaller.appspot.com/bug?extid=258e43f410052d092fd0
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+258e43...@syzkaller.appspotmail.com

lost connection to test machine

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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.