linux-kernel - Re: System hangs on 2.6.26-rc8

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Message-ID: <4873A564.4070103@r000n.net>
Date:	Tue, 08 Jul 2008 21:35:32 +0400
From:	Roman Mindalev <lists@...0n.net>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	kernel-testers@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: System hangs on 2.6.26-rc8

Roman Mindalev wrote:
> Rafael J. Wysocki wrote:
>> On Thursday, 3 of July 2008, Roman Mindalev wrote:
>>> Rafael J. Wysocki wrote:
>>>> On Thursday, 26 of June 2008, Roman Mindalev wrote:
>>>>> I walking in web with Firefox when my system began freezing.
>>>>> 1. After pressing "KMenu" menu not showing
>>>>> 2. Yakuake's terminals not usable: when I try typing "dmesg | tail" or
>>>>> even "ls" system not answering. I can typing anything (including
>>>>> pressing Ctrl+C or Ctrl+Z), but reaction = 0
>>>>> 3. Consoles (Alt + F1 and other) not usable too. I can't even log-in -
>>>>> after typing username and pressing "Enter" password field not available,
>>>>> and I can typing any text like:
>>>>> ----------------------
>>>>> login: r000n
>>>>> grt
>>>>> rthtr
>>>>> y
>>>>> trht
>>>>> ----------------------
>>>>> 4. Switching back to to X from text console not works: I see only black
>>>>> screen
>>>>> 5. Ctrl + Alt + Del not works, I can restart system only with hardware Reset
>>>>>
>>>>> These strange things was 2 times for last day.
>>>>> Logs empty, last strings from syslog:
>>>>> ------- 1-st time --------------------
>>>>> Jun 26 10:37:16 desktop smartd[4967]: Device: /dev/sdb, SMART Usage
>>>>> Attribute: 190 Airflow_Temperature_Cel changed from 59 to 58
>>>>> Jun 26 10:37:16 desktop smartd[4967]: Device: /dev/sdb, SMART Usage
>>>>> Attribute: 194 Temperature_Celsius changed from 115 to 112
>>>>> Jun 26 10:39:01 desktop /USR/SBIN/CRON[14210]: (root) CMD (  [ -x
>>>>> /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find
>>>>> /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 |
>>>>> xargs -n 200 -r -0 rm)
>>>>> Jun 26 10:41:43 desktop ntpd[5006]: synchronized to 204.9.136.253, stratum 2
>>>>> Jun 26 10:42:51 desktop ntpd[5006]: synchronized to 89.108.124.4, stratum 2
>>>>> Jun 26 10:49:00 desktop syslogd 1.5.0#5: restart.
>>>>> --------------------------------------
>>>>> ------- 2-st time --------------------
>>>>> Jun 26 14:32:37 desktop ntpd[5002]: synchronized to 212.57.153.17, stratum 2
>>>>> Jun 26 14:39:01 desktop /USR/SBIN/CRON[5624]: (root) CMD (  [ -x
>>>>> /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find
>>>>> /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 |
>>>>> xargs -n 200 -r -0 rm)
>>>>> Jun 26 14:44:36 desktop syslogd 1.5.0#5: restart.
>>>>> Jun 26 14:44:36 desktop kernel: klogd 1.5.0#5, log source = /proc/kmsg
>>>>> started.
>>>>> Jun 26 14:44:36 desktop kernel: /tty/ttyr5'
>>>>> --------------------------------------
>>>>> Firefox 3 from svn, updated ~3 days ago.
>>>>> System - Debian sid (updated yesterday).
>>>>> Kernel - 2.6.26-rc8
>>>>>
>>>>> If need more information, tell me, where I should take it)
>>>> Did anything like that happen to you with any previous kernel versions?
>>>>
>>>> Rafael
>>>>
>>> No. 2.6.26-rcX was very clear line for me.
>>> But 2.6.26-rc8 - first kernel, which I compiled with timer 300 Hz
>>> (instead 250). I can compile 2.6.26-rc7 with 300 Hz and 2.6.26-rc8 with
>>> 250 Hz if need.
>>> Frequency of timer almost exclusive thing, which changed in my config
>>> since 2.6.26-rc7
>> Please do that and please do keep the CC list in your replies.
>>
>> For now, we will assume this is a regression from -rc7.
>>
>> Thanks,
>> Rafael
>>
> I can't reproduce it not only with 2.6.26-rc8 (250 Hz), but even with
> 2.6.26.rc8 (300 Hz) - with same kernel and same progs.
> Wine compiling + stress with 10-20 min. timeout + downloading +
> browsing... loadavg up 16, but system works! (Slowly, of course, but works)
> 2.6.26-rc9 (300 Hz) looks also stable.
> It was hardware issue I hope (but not understand, which). If this
> problem appears in the future, I will say about it. Now it seems as
> false regression

A bit more information:
Hangs on
1. package installing (Synaptic), and on
2. recovering of corrupted dpkg database (after hardreset)

Message, listed on screen:
update_menus[6160]: Script /etc/menu-methods/xdg-desktop-entry-spec-apps
received signall 11

With -rc8 and -rc9 I got this SIGSEGV, with -rc7 'dpkg --configure -a'
command was executed without errors

Cut from dpkg log and script attached

View attachment "dpkg.log-cut" of type "text/plain" (2912 bytes)

View attachment "xdg-desktop-entry-spec-apps" of type "text/plain" (1146 bytes)