Crash with no logs trace, libc6 with Via C7 processor

[Maelvon]

Binary package hint: libc6

I've a server running a fresh install of the Jaunty Ubuntu version. And it freeze with no clue, nos log trace.

The story is that I've got the same bug on a Debian 4.0, and solved the problem, temporary, with the install of the unstable libc6 version and a recent kernel. But as I need the python2.6 as default with other library, I've jump to Jaunty, and do a fresh install. But the freeze comes back.

It seems to have a similar bug on Gentoo[1], and on Debian (I've already report a bug on Debian[3].
), the other solution[2] is to downgrade the libc6.

So as I'm now on Ubuntu, what can I do to go further, which log to show here to help to debug ?
Today I've added "clock=pit" to the grub menu.lst, as suggested here [4]

[1] http://bugs.gentoo.org/show_bug.cgi?id=228263
[2] http://blog.yoda-bzh.net/index.php?post/2008/02/21/Ma-dedibox-est-enfin-stable-o/
[3] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507845
[4] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507845#59

# uname -a
----------------------------------------
Linux marat.maar.fr 2.6.28-11-server #42-Ubuntu SMP Fri Apr 17 02:48:10 UTC 2009 i686 GNU/Linux
----------------------------------------
# cat /proc/version_signature
----------------------------------------
Ubuntu 2.6.28-11.42-server
----------------------------------------
# cat /proc/cpuinfo
----------------------------------------
processor : 0
vendor_id : CentaurHauls
cpu family : 6
model : 10
model name : VIA Esther processor 2000MHz
stepping : 9
cpu MHz : 1994.807
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge cmov pat clflush acpi mmx fxsr sse sse2 tm nx up pni est tm2 rng rng_en ace ace_en ace2 ace2_en phe phe_en pmm pmm_en
bogomips : 3989.61
clflush size : 64
power management:
----------------------------------------

# sudo vim /boot/grub/menu.lst
----------------------------------------
title Ubuntu 9.04, kernel 2.6.28-11-server
root (hd0,0)
kernel /vmlinuz-2.6.28-11-server root=/dev/sda2 clock=pit ro quiet splash
initrd /initrd.img-2.6.28-11-server

title Ubuntu 9.04, kernel 2.6.28-11-server (recovery mode)
root (hd0,0)
kernel /vmlinuz-2.6.28-11-server root=/dev/sda2 ro single
initrd /initrd.img-2.6.28-11-server
----------------------------------------

Related?: https://bugs.launchpad.net/bugs/359232

[Maelvon (maelvon-hawk)]

I'm try to figure out if the modification of the locales can be the origin to thoses freezes. I've put the locales to fr_FR.UTF-8, and that after that, the freezes appears!

The libc6 is hightly connected to the locales, no?

[Maelvon (maelvon-hawk)]

After some tests, and an uptime at ten days, the server crashes after reconfiguring the locales.

Can it be related to the following bug, talking about a lack of immunity to electro-magnetic radiation of the VIA Epia mini-itx motherboard ?

https://bugs.launchpad.net/ubuntu/+bug/234866/comments/4