Created attachment 224076 [details] Script to trigger the behaviour Fsck in preen mode dumps core when trying to check a gjournaled filesystem. Only full fsck can check and repair a gjournaled fs. The attached script can be used to reproduce this behaviour. > root@sheep:~ # fsck -p /dev/md100.journal > fsck: /dev/md100.journal: Segmentation fault > root@sheep:~ #
I've reported this bug as of FreeBSD 12.1 or 12.2 and no I'm here to notify it's still present in F13 release.
*** This bug has been marked as a duplicate of bug 245907 ***
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=f190f9193bc10a8193c87e0a02fa91400e4eb159 commit f190f9193bc10a8193c87e0a02fa91400e4eb159 Author: Kirk McKusick <mckusick@FreeBSD.org> AuthorDate: 2021-05-21 20:41:40 +0000 Commit: Kirk McKusick <mckusick@FreeBSD.org> CommitDate: 2021-05-21 20:42:37 +0000 Fix fsck_ufs segfaults with gjournal (SU+J) The segfault was being hit in ckfini() (sbin/fsck_ffs/fsutil.c) while attempting to traverse the buffer cache to flush dirty buffers. The tail queue used for the buffer cache was not initialized before dropping into gjournal_check(). Move the buffer initialization earlier so that it has been done before calling gjournal_check(). Reported by: crypt47, nvass Fix by: Robert Wing Tested by: Robert Wing PR: 255030 PR: 255979 MFC after: 3 days Sponsored by: Netflix sbin/fsck_ffs/main.c | 1 + sbin/fsck_ffs/setup.c | 1 - 2 files changed, 1 insertion(+), 1 deletion(-)