Bug#507845: libc6: I am experiencing it too
Frederic Daniel Luc Lehobey a écrit :
> Package: libc6
> Followup-For: Bug #507845
>
> Hi,
>
> I am experiencing this bug on a Dedibox since its migration to Lenny
> (on 2009-01-11). The server started to freeze randomly (2009-01-12,
> 2009-01-26, 2009-01-29) and is freezing once a day without anything in
> the logs (at the time of the freeze that seems to be pure hardware
> freeze) the last 4 days (2009-03-01, 2009-03-02, 2009-03-03 and
> 2009-03-04, the latter on new hardware).
>
> I have asked for hardware replacement (yesterday, 2009-03-03), but it
> still freezed today on the new hardware (same VIA C7 chips used by
> Dedibox for its first generation Dedibox). Hence the problem shall be
> triggered by the software...
>
> # LANG=C dpkg -l libc6*
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
> ||/ Name Version Description
> +++-==============-==============-============================================
> ii libc6 2.7-18 GNU C Library: Shared libraries
> pn libc6-i686 <none> (no description available)
> un libc6.1 <none> (no description availabl
>
> I have removed libc6-i686 only today (after the last freeze) upon
> Aurélien's suggestion in this bug report (I will see if it changes
> anything).
>
> # uname -vomsr
> Linux 2.6.26-1-686 #1 SMP Sat Jan 10 18:29:31 UTC 2009 i686 GNU/Linux
>
> The only suspicious thing in the logs are such lines that happen
> before the freeze (it might be unrelated):
>
> In /var/log/messages:
>
> Mar 3 23:24:12 metis kernel: [ 70.272030] Clocksource tsc unstable (delta = -92054101 ns)
> Mar 3 23:43:17 metis -- MARK --
> Mar 4 00:03:17 metis -- MARK --
> Mar 4 00:23:17 metis -- MARK --
> Mar 4 00:43:17 metis -- MARK --
> Mar 4 01:03:17 metis -- MARK --
> Mar 4 01:23:17 metis -- MARK --
> Mar 4 01:43:17 metis -- MARK --
> Mar 4 02:03:17 metis -- MARK --
> Mar 4 02:23:17 metis -- MARK --
> Mar 4 08:57:12 metis syslogd 1.5.0#5: restart.
>
> (the freeze happened before 02:43).
>
> Then after hard reboot (manually triggered around 08:57):
>
> Mar 4 09:17:12 metis -- MARK --
> Mar 4 09:22:48 metis kernel: [ 1555.272022] Clocksource tsc unstable (delta = -85850896 ns)
> Mar 4 09:37:12 metis -- MARK --
> Mar 4 09:57:12 metis -- MARK --
> Mar 4 10:17:12 metis -- MARK --
>
If this is the real problem (but I currently fail how it is related to
glibc), you can try to boot your kernel with 'clock=pit' in grub.conf.
--
Aurelien Jarno GPG: 1024D/F1BCDB73
aurelien@aurel32.net http://www.aurel32.net
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