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    SubjectRe: Software raid in 2.2.16 broken?
    From
    Date
    There is an errata patch on Alan Cox's website that fixes this.  Its a
    one liner.

    Take care,

    "nate@firetrail.com" <nate@firetrail.com> writes:

    > I sent this email to debian-user & debian-devel@lists.debian.org had 1
    > other user that had this same problem. It is quite severe.
    >
    > below is the original email about the kernel puking when running e2fsck on
    > a software raid(level 1) device:
    >
    >
    > -- begin original email --
    > To: Debian user mailinglist <debian-user@lists.debian.org>
    > Subject: e2fsck+raid+linux 2.2.16 = crash?
    > From: "nate@firetrail.com" <nate@firetrail.com>
    > Date: Fri, 14 Jul 2000 15:40:34 -0700 (PDT)
    > cc: debian-devel@lists.debian.org
    >
    >
    >
    > Today...
    >
    > One of my systems crashed due to SCSI disk errors.
    >
    > when it came back up it crashed again. so i had to go to the site (2 hour
    > drive!@) and took a look at it.
    >
    > it seems when the system tries to run e2fsck on the raid set the system
    > crashes with the message:
    >
    > Jul 14 13:36:30 galactica kernel: VFS: grow_buffers: size = 16384
    > Jul 14 13:36:31 galactica last message repeated 665 times
    > Jul 14 13:36:31 galactica kernel: 384
    > Jul 14 13:36:31 galactica kernel: VFS: grow_buffers: size = 16384
    > Jul 14 13:36:31 galactica last message repeated 814 times
    > Jul 14 13:36:31 galactica kernel: 384
    > Jul 14 13:36:31 galactica kernel: VFS: grow_buffers: size = 16384
    > Jul 14 13:36:31 galactica last message repeated 468 times
    >
    > it goes on and on and on..(the people on site left it in that state for a
    > good hour and a half until i got there)
    >
    > This did not happen with 2.2.15. This is also the first time i have run
    > e2fsck on the raid drive since upgrading to 2.2.16. As a result i have
    > been forced to mount the raid array unclean just so i could get the system
    > up and running so the rest of the staff at the site could go home(its
    > co-located). I didn't think to reboot to 2.2.15 and run e2fsck on it
    > before i left i was in a real rush.
    >
    > System configuration:
    >
    > Asus P2L97-DS (this board does not have scsi despite the "DS" model code)
    > Dual P2-233
    > 128MB PC100 SDRAM x 3 (384MB total)
    > Matrox G100 AGP Video
    > Adaptec AHA 2940UW PCI
    > 3Com 3C905C w/drivers from www.3com.com
    > Generic ATAPI 32x CDROM
    > Root device: IBM DDRS-34560D 4.3GB
    > Raid system: IBM-DNES-30917OW 9.1GB (x2) Software raid mode 1
    > Additional Storage: QUANTUM VIKING 4.5WSE 4.5GB (<- the cause of the
    > initial crash)
    >
    >
    > Linux Distribution: Debian GNU/Linux 2.1r4
    > Installed: Mid-march
    > Installed with kernel: 2.2.14+ow1 (www.openwall.com/linux)
    > Currently running: 2.2.16+ow1
    >
    > Raid version: 0.36.4
    >
    > this happened again and again, and i finally traced it down to this by
    > disabling automounting of /dev/md0 in /etc/fstab and the system booted
    > fine. ckraid was run multiple times with no crash(it ran everytime the
    > system crashed due to other reasons). Once i tried to run e2fsck on
    > /dev/md0 the errors(above) flooded the screen until i ctrl-alt-del.
    >
    > I'm not a kernel hacker but i was curious if this is a known issue? i do
    > read kernel traffic every week but i haven't seen anything specifically
    > realted to raid mentioned (that i can remember). I think what i will do is
    > download the data off the raid set, and reformat it so it can be
    > "clean" again. or reboot to 2.2.15 and run e2fsck on it..
    >
    > i can try to provide more info if needed, let me know, i just dont want to
    > have to drive up there again if i can avoid it:)
    >
    > help!
    >
    > nate
    >
    > :::
    > http://www.aphroland.org/
    > http://www.linuxpowered.net/
    > aphro@aphroland.org
    > 3:24pm up 1:30, 1 user, load average: 0.00, 0.01, 0.00
    >
    > -- end original email --
    >
    > one user on debian-user pointed me to a patch:
    >
    > http://www.linux.org.uk/VERSION/relnotes.2216.html
    >
    > but it appears this code is already in 2.2.16. This does not happen in
    > 2.2.15.
    >
    > any ideas? btw, im not on the list so if you could please cc: me when
    > responding.
    >
    > thanks!
    >
    > nate
    >
    >
    > :::
    > http://www.aphroland.org/
    > http://www.linuxpowered.net/
    > aphro@aphroland.org
    > 3:36pm up 23:04, 2 users, load average: 0.04, 0.01, 0.00
    >
    >
    > -
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    >

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