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| author | Mark Johnston <markj@FreeBSD.org> | 2023-02-24 02:56:36 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2023-03-03 14:27:50 +0000 |
| commit | a102020bf39374210de95e54b83886ecedd8b166 (patch) | |
| tree | 6c1f023102f672051c36f285fb9031ae9aefc54f | |
| parent | 947344774cf3d405d0eae0d132fc2d7f63dc6330 (diff) | |
| download | src-a102020bf39374210de95e54b83886ecedd8b166.tar.gz src-a102020bf39374210de95e54b83886ecedd8b166.zip | |
buf: Make bufspace_daemon_shutdown() a no-op after a panic
This function doesn't need to do anything in that context, and calling
wakeup() can lead to recursive panics.
Discussed with: mhorne
MFC after: 1 week
(cherry picked from commit 9d7cc536e261a7d207476115dac6058c38f469bd)
| -rw-r--r-- | sys/kern/vfs_bio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 6a479ed335ef..98047f161077 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -764,6 +764,9 @@ bufspace_daemon_shutdown(void *arg, int howto __unused) struct bufdomain *bd = arg; int error; + if (KERNEL_PANICKED()) + return; + BD_RUN_LOCK(bd); bd->bd_shutdown = true; wakeup(&bd->bd_running); |