diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/kcov.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/dev/kcov.c b/sys/dev/kcov.c index 7e7c5108737..fa1ce1b6dc5 100644 --- a/sys/dev/kcov.c +++ b/sys/dev/kcov.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kcov.c,v 1.17 2020/05/16 08:38:34 anton Exp $ */ +/* $OpenBSD: kcov.c,v 1.18 2020/05/17 08:46:05 anton Exp $ */ /* * Copyright (c) 2018 Anton Lindqvist <anton@openbsd.org> @@ -387,6 +387,13 @@ kd_curproc(int mode) struct kcov_dev *kd; /* + * Do not trace if the kernel has panicked. This could happen if curproc + * had kcov enabled while panicking. + */ + if (__predict_false(panicstr || db_active)) + return (NULL); + + /* * Do not trace before kcovopen() has been called at least once. * At this point, all secondary CPUs have booted and accessing curcpu() * is safe. |