Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Print dangling vnode before panic() to help debug. 

PR kern/57775 ""panic: unmount: dangling vnode" while umounting procfs"
This commit is contained in:
hannken 2024-01-17 10:17:29 +00:00
parent f0cc90c163
commit ca4932dc6d
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sys/kern/vfs_mount.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vfs_mount.c,v 1.103 2023/12/28 12:48:08 hannken Exp $ */
/* $NetBSD: vfs_mount.c,v 1.104 2024/01/17 10:17:29 hannken Exp $ */
/*-
* Copyright (c) 1997-2020 The NetBSD Foundation, Inc.
@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_mount.c,v 1.103 2023/12/28 12:48:08 hannken Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_mount.c,v 1.104 2024/01/17 10:17:29 hannken Exp $");
#include "veriexec.h"
@ -936,7 +936,7 @@ err_mounted:
int
dounmount(struct mount *mp, int flags, struct lwp *l)
{
vnode_t *coveredvp;
vnode_t *coveredvp, *vp;
int error, async, used_syncer, used_extattr;
const bool was_suspended = fstrans_is_owner(mp);
@ -1003,8 +1003,10 @@ dounmount(struct mount *mp, int flags, struct lwp *l)
vfs_resume(mp);
mountlist_remove(mp);
if (TAILQ_FIRST(&mp->mnt_vnodelist) != NULL)
if ((vp = VIMPL_TO_VNODE(TAILQ_FIRST(&mp->mnt_vnodelist))) != NULL) {
vprint("dangling", vp);
panic("unmount: dangling vnode");
}
vfs_hooks_unmount(mp);
vfs_set_lowermount(mp, NULL);