[gentoo-catalyst] catalyst aborts, can not unmount /dev

[gentoo-catalyst] catalyst aborts, can not unmount /dev

[Marko Djukic]

Hi,

Catalyst emerges everything then aborts with the following message:

 * Processed 94 info files.
Running action sequence: preclean
Running command "/bin/bash /usr/lib/catalyst/targets/livecd-stage1/livecd-stage1
.sh preclean"
Running action sequence: unbind
umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: device is bu
sy
umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: device is bu
sy
!!! catalyst: First attempt to unmount: /var/tmp/catalyst/tmp/default/livecd-sta
ge1-x86-2006.0/dev failed.
!!! catalyst: Killing any pids still running in the chroot
Checking for processes running in chroot and killing them.
Running command "/bin/bash /usr/lib/catalyst/targets/support/kill-chroot-pids.sh
"

Killing process(es)
pid: process name
15073:

Press Ctrl-C within 10 seconds to abort
umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: device is bu
sy
umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: device is bu
sy
!!! catalyst: Couldn't umount bind mount: /var/tmp/catalyst/tmp/default/livecd-s
tage1-x86-2006.0/dev

!!! catalyst: Couldn't umount one or more bind-mounts; aborting for safety.

Running lsof at the time of it trying to unmount it's bind mounted
/dev shows this:
udevd     15073    root    0u      CHR        1,3                8449
/var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev/null
udevd     15073    root    1u      CHR        1,3                8449
/var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev/null
udevd     15073    root    2u      CHR        1,3                8449
/var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev/null

The process "15073" quoted above is this:
$ ps ax | grep 15073
15073 ?        S<s    0:00 /sbin/udevd --daemon


Anyone have any ideas why it's failing?

Thanks,

Marko

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Re: [gentoo-catalyst] catalyst aborts, can not unmount /dev

[Chris Gianelloni]

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On Thu, 2006-05-11 at 21:50 +0100, Marko Djukic wrote:
> The process "15073" quoted above is this:
> $ ps ax | grep 15073
> 15073 ?        S<s    0:00 /sbin/udevd --daemon
> 
> 
> Anyone have any ideas why it's failing?

udev is a PITA and takes forever to drop its grip on files?

If you're at the umount stage, you're at the end.  You can actually
continue on with livecd-stage2, but it might be wise to run back over
your livecd-stage1, to ensure nothing was missed.  Caching is your
friend.  ;]

-- 
Chris Gianelloni
Release Engineering - Strategic Lead
x86 Architecture Team
Games - Developer
Gentoo Linux

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Re: [gentoo-catalyst] catalyst aborts, can not unmount /dev

[Marko Djukic]

On 5/11/06, Chris Gianelloni <wolf31o2@gentoo.org> wrote:
>
> If you're at the umount stage, you're at the end.  You can actually
> continue on with livecd-stage2, but it might be wise to run back over
> your livecd-stage1, to ensure nothing was missed.  Caching is your
> friend.  ;]

Yep, I've rerun it 4-5 times now, each time it fails at the unmount.
But if that's the end then I'll just carry on with stage 2 now.

Can't the kill loop or wait until the pid is actually killed before
retrying an unmount? Also there's a bug when fetching the P_NAME
variable, awk should return print $10 (not $11). I'll send a patch
tomorrow.

m.

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Re: [gentoo-catalyst] catalyst aborts, can not unmount /dev

[Jacques Landru]

Hi

It seems that problem comes from the catalyst2 cache options. I had the 
same behaviour
untill I unvalidate kerncache pkgcache, seedcache and snapcache options 
in my /etc/catalyst2.
My options field is just
options="autoresume ccache"

LiveCD rebuild is longer, but all busy device unmount problems, I had, 
seem to be solved.

Hope this can help gentoo catalyst2 developper...

Jacques Landru

Marko Djukic wrote:
> Hi,
>
> Catalyst emerges everything then aborts with the following message:
>
> * Processed 94 info files.
> Running action sequence: preclean
> Running command "/bin/bash 
> /usr/lib/catalyst/targets/livecd-stage1/livecd-stage1
> .sh preclean"
> Running action sequence: unbind
> umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: 
> device is bu
> sy
> umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: 
> device is bu
> sy
> !!! catalyst: First attempt to unmount: 
> /var/tmp/catalyst/tmp/default/livecd-sta
> ge1-x86-2006.0/dev failed.
> !!! catalyst: Killing any pids still running in the chroot
> Checking for processes running in chroot and killing them.
> Running command "/bin/bash 
> /usr/lib/catalyst/targets/support/kill-chroot-pids.sh
> "
>
> Killing process(es)
> pid: process name
> 15073:
>
> Press Ctrl-C within 10 seconds to abort
> umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: 
> device is bu
> sy
> umount: /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev: 
> device is bu
> sy
> !!! catalyst: Couldn't umount bind mount: 
> /var/tmp/catalyst/tmp/default/livecd-s
> tage1-x86-2006.0/dev
>
> !!! catalyst: Couldn't umount one or more bind-mounts; aborting for 
> safety.
>
> Running lsof at the time of it trying to unmount it's bind mounted
> /dev shows this:
> udevd     15073    root    0u      CHR        1,3                8449
> /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev/null
> udevd     15073    root    1u      CHR        1,3                8449
> /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev/null
> udevd     15073    root    2u      CHR        1,3                8449
> /var/tmp/catalyst/tmp/default/livecd-stage1-x86-2006.0/dev/null
>
> The process "15073" quoted above is this:
> $ ps ax | grep 15073
> 15073 ?        S<s    0:00 /sbin/udevd --daemon
>
>
> Anyone have any ideas why it's failing?
>
> Thanks,
>
> Marko
>


-- 

    -----oOo-----
 Jacques Landru
   mel:  landru@enic.fr
   web:  http://www.enic.fr/people/landru
   tel:  +33 (0)3 2033 5556
   fax:  +33 (0)3 2033 5598

 Telecom Lille 1
 Cite scientifique, rue G. Marconi
 59658 VILLENEUVE D'ASCQ  Cedex
  web: http://www.enic.fr
  Tel: +33 (0)3 2033 5577 
  Fax: +33 (0)3 2033 5599 
    -----oOo-----

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Re: [gentoo-catalyst] catalyst aborts, can not unmount /dev

[Chris Gianelloni]

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On Fri, 2006-05-12 at 17:53 +0200, Jacques Landru wrote:
> Hi
> 
> It seems that problem comes from the catalyst2 cache options. I had the 
> same behaviour
> untill I unvalidate kerncache pkgcache, seedcache and snapcache options 
> in my /etc/catalyst2.
> My options field is just
> options="autoresume ccache"
> 
> LiveCD rebuild is longer, but all busy device unmount problems, I had, 
> seem to be solved.
> 
> Hope this can help gentoo catalyst2 developper...

Unfortunately, not at all...  I use all of the caches on several
machines and I have no problems with unmounting.  Every now and then,
it'll have to kill a process, but it always happens in a timely manner
and the timeout is long enough.

-- 
Chris Gianelloni
Release Engineering - Strategic Lead
x86 Architecture Team
Games - Developer
Gentoo Linux

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