multicore test error

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 737f2a163501 anton@: Do not trace before kcovopen() has be..
git tree: https://github.com/blackgnezdo/src.git anton-kcov-dec8
console output: https://syzkaller.appspot.com/x/log.txt?x=1254156d400000
kernel config: https://syzkaller.appspot.com/x/.config?x=f2ee3db928411249
dashboard link: https://syzkaller.appspot.com/bug?extid=383e240b2ed749f35aa7
compiler:

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+383e24...@syzkaller.appspotmail.com

lost connection to test machine

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[syzbot]

> That's my partially implemented sandbox.
> #syz invalid

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