Date: Tue, 20 Apr 2004 19:17:40 +0300 From: Alex Lyashkov <shadow@psoft.net> To: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Subject: kernel panic at quotactl with 5.2-current Message-ID: <1082477860.8258.105.camel@berloga.shadowland>
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Hello All
Steps for reproduce:
1) start with generic kernel.
2) install samba 2.2.8a from ports with quota & ACL support.
3) mount fat32 partition to some mount point, as example mount /mnt/dos
4) add to smb.conf
[tmp]
comment = Temporary file space
path = /mnt/dos
read only = no
public = yes
5) mount this share via smbmount from linux box and start mc (i think it
work and with other access to this share)
...
This patch fixed this problem.
# cvs diff -u vfs_syscalls.c
Index: vfs_syscalls.c
===================================================================
RCS file: /mnt/storage/freebsd-cvs/src/sys/kern/vfs_syscalls.c,v
retrieving revision 1.343
diff -u -r1.343 vfs_syscalls.c
--- vfs_syscalls.c 6 Apr 2004 10:05:02 -0000 1.343
+++ vfs_syscalls.c 20 Apr 2004 15:50:20 -0000
@@ -195,7 +195,7 @@
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH);
vrele(nd.ni_vp);
- if (error)
+ if (error || !mp)
return (error);
error = VFS_QUOTACTL(mp, uap->cmd, uap->uid, uap->arg, td);
vn_finished_write(mp);
--
Alex Lyashkov <shadow@psoft.net>
PSoft
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