SYZFAIL: out of opened kcov threads

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14e7d1b9b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=bd8cfe4ed0433942059c
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

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

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bd8cfe...@syzkaller.appspotmail.com

2021/12/10 17:10:26 executor 1 failed 11 times:
executor 1: exit status 67
SYZFAIL: out of opened kcov threads
(errno 110: Connection timed out)
SYZFAIL: child failed
(errno 0: Success)
loop exited with status 67


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[Aleksandr Nogikh]

#syz invalid

Should no longer appear after
https://github.com/google/syzkaller/commit/49ca1f59e37fcf63dc38a6bd2b60fcc47a0a708e

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