2.5.27 raid1 bug...

• Next message: Robert Love: "Re: [PATCH] low-latency zap_page_range"
• Previous message: Petr Vandrovec: "[PATCH] ipx use of cli/sti"
• Next in thread: Neil Brown: "Re: 2.5.27 raid1 bug..."
• Maybe reply: Neil Brown: "Re: 2.5.27 raid1 bug..."
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Okay, I've isolated a problem with raid1/md under 2.5.27...

Scenario:

    /dev/hda2 and /dev/hdb2 are unused partitions.

/etc/raidtab:
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
nr-spare-disks 0
 device /dev/hda2
 raid-disk 0
 device /dev/hdb2
 raid-disk 1

mkraid /dev/md0

Fails with a kernel panic. A bit of searching finds that this chunk of
code (md.c, about line 850):
     rdev = list_entry(&mddev->disks.next, mdk_rdev_t, same_set);
     sb = rdev->sb;

     memset(sb, 0, sizeof(*sb));

Is failing. sb is == 1 !!

Anyone got any ideas?

-
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/

• Next message: Robert Love: "Re: [PATCH] low-latency zap_page_range"
• Previous message: Petr Vandrovec: "[PATCH] ipx use of cli/sti"
• Next in thread: Neil Brown: "Re: 2.5.27 raid1 bug..."
• Maybe reply: Neil Brown: "Re: 2.5.27 raid1 bug..."
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Tue Jul 23 2002 - 22:00:40 EST