Subject: Re: Changed mount_mfs behavior?
To: None <firstname.lastname@example.org>
From: Matthias Scheler <email@example.com>
Date: 10/01/2002 20:12:09
In article <20020921105558.GA15535@apb.cequrux.com>,
Alan Barrett <firstname.lastname@example.org> writes:
> This sounds like the problem I described in PR 17128. As far as I can tell,
> there's been no progress in fixing it.
It looks like PR kern/17128 describes the same problems as PR kern/17321.
You might try this patch which I got from Chuck Silvers:
cvs server: Diffing .
RCS file: /cvsroot/syssrc/sys/ufs/mfs/mfs_vfsops.c,v
retrieving revision 1.38
diff -u -r1.38 mfs_vfsops.c
--- mfs_vfsops.c 2002/03/04 02:25:24 1.38
+++ mfs_vfsops.c 2002/10/01 20:06:25
@@ -235,6 +235,8 @@
int flags, error;
+ /* XXX suggested fix for PR kern/17321 by Chuck Silvers. */
+ mp->mnt_flag |= MNT_SYNCHRONOUS;
* XXX turn off async to avoid hangs when writing lots of data.
* the problem is that MFS needs to allocate pages to clean pages,
I didn't experience another freeze so far but the system wasn't up
long enough (because of cabling changes and not another crash). The
patch will however cause a performance degradation.
Matthias Scheler http://scheler.de/~matthias/