multicore build error (6)

multicore build error (6)
Status: fixed on 2020/08/02 07:38
Reported-by: syzbot+1fdb75dfbcbcbabdbb2b@syzkaller.appspotmail.com
Fix commit: Revert r1.170. dlg and jmatthew simultaneously fixed this the correct way.
First crash: 226d, last: 213d

similar bugs (10):
Kernel	Title	Count	Last	Reported	Patched	Status
openbsd	multicore build error (8)	88	130d	135d	3/3	fixed on 2020/10/21 09:01
openbsd	multicore build error (4)	2	661d	661d	0/3	closed as invalid on 2019/06/02 07:29
openbsd	multicore build error (2)	10	686d	687d	0/3	closed as invalid on 2019/04/14 09:55
openbsd	multicore build error (5)	4	319d	319d	3/3	fixed on 2020/04/15 12:21
openbsd	multicore build error (7)	5	168d	168d	3/3	fixed on 2020/09/15 08:22
openbsd	multicore build error (3)	4	663d	663d	3/3	fixed on 2019/05/07 19:17
openbsd	multicore build error (9)	1	129d	129d	0/3	closed as invalid on 2020/10/23 06:08
openbsd	multicore build error (10)	2	36d	109d	0/3	closed as invalid on 2021/01/30 07:24
openbsd	multicore build error	26	696d	697d	0/3	closed as invalid on 2019/04/04 14:04
openbsd	multicore build error (11)	2	4d19h	4d19h	0/3	closed as invalid on 2021/02/25 05:21

Sample crash report:

failed to run ["/bin/sh" "-c" "set -eux\nOVERLAY=\"/syzkaller/userspace-multicore/overlay\"\n# Cleanup in case something failed before.\ndoas umount /altroot || true\ndoas vnconfig -u vnd0 || true\n\ndoas /sbin/vnconfig vnd0 image\ndoas mount /dev/vnd0a /altroot\ndoas cp kernel /altroot/bsd\ntest -d \"$OVERLAY\" && doas cp -Rf \"$OVERLAY\"/. /altroot\ndoas umount /altroot\ndoas vnconfig -u vnd0\n"]: exit status 1

Crashes (4):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report
ci-openbsd-multicore	2020/07/30 06:19	openbsd	31f29d64	233283a1	.config	log	report
ci-openbsd-multicore	2020/07/29 07:17	openbsd	511c53b1	19a8de55	.config	log	report
ci-openbsd-setuid	2020/07/17 09:06	openbsd	2405a0d3	54b3c45e	.config	log	report
ci-openbsd-multicore	2020/07/17 08:46	openbsd	2405a0d3	54b3c45e	.config	log	report