lkml.org 
[lkml]   [2006]   [May]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRAID-1 and Reiser4 issue: umount hangs
Hi,

I'm using Reiser4 for my filesystems on disk (/dev/sda) , and it works
just fine. Recently I bought a second disk (/dev/sdb) for RAID-1
mirroring. With mdadm I created a degraded raid-1 array on /dev/md/0,
devices missing,/dev/sdb1. After that I created a Reiser4 filesystem on
/dev/md/0 and mounted it at /mnt. Then I copied the data from /dev/sda1
to /mnt.
All goes well until I umount /mnt, umount simply hangs without any
error. Syslog doesn't report any error. In /proc/mdstat, the array
remains "active sync". Shutting down linux fails because the umount is
still waiting and seems to block other umounts. The umount process
cannot be killed by the root. A hard reset is the only resolution to get
my system functioning normally, but without the raid-1 of course.
The problem seems to emerge only with the combination of RAID and
Reiser4. I've created an ext-2 filesystem on /dev/md/0, and after that
mount ; cp -ax ; umount works without a problem, and the hanging umount
re-appears when using Reiser4 again.

My questions:
- how can I find the cause of the hanging umount?
- how can I fix it?

A few details of my linux-box:

Gentoo Linux, 2.6.16 kernel with Reiser4-for-2.6.16-2.patch.gz
i686 AMD Athlon(tm) XP 2400+
DC4300 SATA-II controller (Silicon Image 3124, libata + sata_sil24 drivers)
2 x Samsung SP2504C hard disk

Thanx in advance,

Arend
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-05-28 00:16    [W:0.066 / U:5.524 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site