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Old 04-17-2011, 01:14 AM
Leonard den Ottolander
 
Default glibc-2.5-58.el5_6.2.i686 broken?

Hi,

I woke up Saturday morning unable to boot my freshly upgraded 5.6 with
grub hanging at "GRUB". After getting the boot loader fixed I
experienced crashes in evolution. Downgrading glibc to 2.5-58 seems to
fix these issues. Anyone else seeing this?

Leonard.

--
mount -t life -o ro /dev/dna /genetic/research


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Old 04-17-2011, 01:18 AM
Akemi Yagi
 
Default glibc-2.5-58.el5_6.2.i686 broken?

On Sat, Apr 16, 2011 at 6:14 PM, Leonard den Ottolander
<leonard@den.ottolander.nl> wrote:
> Hi,
>
> I woke up Saturday morning unable to boot my freshly upgraded 5.6 with
> grub hanging at "GRUB". After getting the boot loader fixed I
> experienced crashes in evolution. Downgrading glibc to 2.5-58 seems to
> fix these issues. Anyone else seeing this?

Yes, this is a known issue:

https://bugzilla.redhat.com/show_bug.cgi?id=693882

See also:

http://www.centos.org/modules/newbb/viewtopic.php?topic_id=30939&forum=37

Akemi
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Old 04-17-2011, 01:19 AM
"John R. Dennison"
 
Default glibc-2.5-58.el5_6.2.i686 broken?

On Sun, Apr 17, 2011 at 03:14:11AM +0200, Leonard den Ottolander wrote:
>
> I woke up Saturday morning unable to boot my freshly upgraded 5.6 with
> grub hanging at "GRUB". After getting the boot loader fixed I
> experienced crashes in evolution. Downgrading glibc to 2.5-58 seems to
> fix these issues. Anyone else seeing this?

https://bugzilla.redhat.com/show_bug.cgi?id=693882

I've heard from an OOB source that a fix is in QA at Redhat now.




John

--
Anybody can win unless there happens to be a second entry.

-- George Ade (1866 - 1944), American writer, newspaper columnist,
and playwright
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Old 04-17-2011, 01:37 AM
Leonard den Ottolander
 
Default glibc-2.5-58.el5_6.2.i686 broken?

Hello John,

On Sat, 2011-04-16 at 20:19 -0500, John R. Dennison wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=693882
>
> I've heard from an OOB source that a fix is in QA at Redhat now.

Is this somehow related to how my grub got broken? Or is that a
different issue? Or just a coincidence ?

Leonard.

--
mount -t life -o ro /dev/dna /genetic/research


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Old 04-17-2011, 01:41 AM
"John R. Dennison"
 
Default glibc-2.5-58.el5_6.2.i686 broken?

On Sun, Apr 17, 2011 at 03:37:38AM +0200, Leonard den Ottolander wrote:
>
> Is this somehow related to how my grub got broken? Or is that a
> different issue? Or just a coincidence ?

That I don't know, sorry. I've not seen references to that particular
problem being related to the glibc issue but to be honest I've not done
a lot of looking into it.




John
--
Extremism. It is an almost infallible sign -- a kind of death-rattle --
when a human institution is forced by its members into stressing those and
only those factors which are identificatory, at the expense of others which
it necessarily shares with competing institutions because human beings
belong to all of them.

-- John Brunner (1934 - 1996), science fiction author, Stand on Zanzibar (1968)
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Old 04-17-2011, 02:52 PM
Leonard den Ottolander
 
Default glibc-2.5-58.el5_6.2.i686 broken?

Hi Akemi,

On Sat, 2011-04-16 at 18:18 -0700, Akemi Yagi wrote:
> See also:
>
> http://www.centos.org/modules/newbb/viewtopic.php?topic_id=30939&forum=37

Please don't take this the wrong way, but not everybody reads the
forums. Perhaps it is possible to give a heads up about such breakage
via the CentOS general or announce mailing list before such a broken
package is released into the wild? That would actually make it an
advantage to swim down stream :-) .

I would like to advice everyone to avoid this update by adding
exclude=glibc*2.5-58.el5_6.2 nscd*2.5-58.el5_6.2
to their updates channel config - added it to base just to be sure -
until upstream releases a fix.

Regards,
Leonard.

--
mount -t life -o ro /dev/dna /genetic/research


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Old 04-17-2011, 03:27 PM
Eero Volotinen
 
Default glibc-2.5-58.el5_6.2.i686 broken?

2011/4/17 Leonard den Ottolander <leonard@den.ottolander.nl>:
> Hi Akemi,
>
> On Sat, 2011-04-16 at 18:18 -0700, Akemi Yagi wrote:
>> See also:
>>
>> http://www.centos.org/modules/newbb/viewtopic.php?topic_id=30939&forum=37
>
> Please don't take this the wrong way, but not everybody reads the
> forums. Perhaps it is possible to give a heads up about such breakage
> via the CentOS general or announce mailing list before such a broken
> package is released into the wild? That would actually make it an
> advantage to swim down stream :-) .
>
> I would like to advice everyone to avoid this update by adding
> exclude=glibc*2.5-58.el5_6.2 nscd*2.5-58.el5_6.2
> to their updates channel config - added it to base just to be sure -
> until upstream releases a fix.
>
> Regards,
> Leonard.

Does this also affects grub? if so, then this is very critical, it can
trash my rhel installations :/

--
Eero
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Old 04-17-2011, 03:38 PM
Leonard den Ottolander
 
Default glibc-2.5-58.el5_6.2.i686 broken?

Hello Eero,

On Sun, 2011-04-17 at 18:27 +0300, Eero Volotinen wrote:
> Does this also affects grub? if so, then this is very critical, it can
> trash my rhel installations :/

Well I am not sure, it could be a coincidence, but on my Sempron (i686)
system I had to fix a broken grub (hanging at "GRUB") after last
Friday's update (it included a kernel upgrade too). Only after I fixed
grub I noticed the issues with evolution and gnome panels.

So, again, I'm not sure if these issues are related, but since they
happened with/after the same update I thought is was worth noting.

Regards,
Leonard.

--
mount -t life -o ro /dev/dna /genetic/research


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Old 04-17-2011, 04:44 PM
Akemi Yagi
 
Default glibc-2.5-58.el5_6.2.i686 broken?

On Sun, Apr 17, 2011 at 7:52 AM, Leonard den Ottolander
<leonard@den.ottolander.nl> wrote:
> Hi Akemi,
>
> On Sat, 2011-04-16 at 18:18 -0700, Akemi Yagi wrote:
>> See also:
>>
>> http://www.centos.org/modules/newbb/viewtopic.php?topic_id=30939&forum=37
>
> Please don't take this the wrong way, but not everybody reads the
> forums. Perhaps it is possible to give a heads up about such breakage
> via the CentOS general or announce mailing list before such a broken
> package is released into the wild? That would actually make it an
> advantage to swim down stream :-) .

Perhaps, I could have sent a similar warning to this mailing list (but
not the announcement list which is restricted to core admins). My main
focus was Forum users for which I work as a moderator.

> I would like to advice everyone to avoid this update by adding
> exclude=glibc*2.5-58.el5_6.2 nscd*2.5-58.el5_6.2
> to their updates channel config - added it to base just to be sure -
> until upstream releases a fix.

It should be noted that those who are not affected by the bug are
advised to update glibc because it has 4 security fixes (some local,
some remote prev escalation issues). For those who cannot update,
there is a "better than nothing" solution. As detailed in the bugzilla
entry, the patch causing the crash has been identified. So, a
compromised solution is to build glibc without the bad patch. This way
you get at least the other 3 security fixes (better than none). Such a
version provided by Scientific Linux (for testing) seems to be
working well from what I have seen.

I and others discussed this issue with Karanbir on the centos-devel
IRC. We'll see if CentOS decide to offer the customized version of
glibc (presumably in the testing repo).

Akemi
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Old 04-17-2011, 05:08 PM
Rainer Traut
 
Default glibc-2.5-58.el5_6.2.i686 broken?

Am 17.04.2011 16:52, schrieb Leonard den Ottolander:
> Hi Akemi,
>
> On Sat, 2011-04-16 at 18:18 -0700, Akemi Yagi wrote:
>> See also:
>>
>> http://www.centos.org/modules/newbb/viewtopic.php?topic_id=30939&forum=37
>
> Please don't take this the wrong way, but not everybody reads the
> forums. Perhaps it is possible to give a heads up about such breakage

Please don't take it wrong but Akemi gave you the link because not
everyone reads the forums and the issue was discussed there.

> I would like to advice everyone to avoid this update by adding
> exclude=glibc*2.5-58.el5_6.2 nscd*2.5-58.el5_6.2
> to their updates channel config - added it to base just to be sure -
> until upstream releases a fix.

I would like to advice everyone to install the glibc package. The
security impact of not doing so is too high. Only one who is affected by
Evolution breakage should not do so.

Again please don't take it wrong but I think the tone of this thread is
wrong, the security fix is just too important.

Rainer
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