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SubjectRe: remount reiserfs hangs under heavy load 2.4.20pre5
Hello!

On Fri, Sep 06, 2002 at 11:35:16PM +0800, Jeff Chua wrote:
> > > Whenever "mount -o remount -n -w /dev/hdax" is issued under disk
> > > activities, the system would freezed, and had to be hard booted.
> > What kind of disk activies?
> Activities such as compiling the kernel or rcp large files on /dev/hda3
> > What was mount status of filesystems before that command was it readonly
> > mounted ?
> Yes, read-only on /dev/hda2, trying to change to read-write.

Hm. Well, I have not found this same bug as you describe but a very similar
problem.
Can you please try patch below and see it it helps in your situation too?
It should apply to almost anything including 2.4.19 and 2.4.20-pre5.

Thank you.

Bye,
Oleg


===== super.c 1.23 vs edited =====
--- 1.23/fs/reiserfs/super.c Mon Sep 9 14:41:12 2002
+++ edited/super.c Mon Sep 9 17:48:55 2002
@@ -664,7 +664,7 @@
}

if (*mount_flags & MS_RDONLY) {
- /* remount rean-only */
+ /* remount read-only */
if (s->s_flags & MS_RDONLY)
/* it is read-only already */
return 0;
@@ -680,6 +680,10 @@
journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
s->s_dirt = 0;
} else {
+ /* remount read-write */
+ if (!(s->s_flags & MS_RDONLY))
+ return 0; /* We are read-write already */
+
s->u.reiserfs_sb.s_mount_state = sb_state(rs) ;
s->s_flags &= ~MS_RDONLY ; /* now it is safe to call journal_begin */
journal_begin(&th, s, 10) ;
-
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