--- Begin Message ---
- To: submit@bugs.debian.org
- Subject: cpufrequtils appears to cause my machine to freeze
- From: Cameron Horsburgh <cammo@netcall.com.au>
- Date: Mon, 7 Jan 2008 22:33:59 +1100
- Message-id: <20080107113359.GA9301@debian>
Package: cpufrequtils
Version: 002-5
Severity: important
*** Please type your report below this line ***
Hi folks,
I've just installed a new Lenny system from a recent Lenny netinst
CD. I've had an issue with random system freezes that doesn't appear
to respond to a remote login or even alt-SysRq. However, this only
seemed to happen in multiuser mode --- I've had no problem at all with
a single user login. The logs don't seem to tell me much, although
there seems to be a lot of things regarding acpi and the cpu scaling
in the second or two before the point where the freeze presumably
happens. Typical output looks something like:
Jan 7 20:53:00 mercury kernel: input: Power Button (FF) as /class/input/input3
Jan 7 20:53:00 mercury kernel: ACPI: Power Button (FF) [PWRF]
Jan 7 20:53:00 mercury kernel: input: Power Button (CM) as /class/input/input4
Jan 7 20:53:00 mercury kernel: ACPI: Power Button (CM) [PWRB]
Jan 7 20:53:00 mercury kernel: input: Sleep Button (CM) as /class/input/input5
Jan 7 20:53:00 mercury kernel: ACPI: Sleep Button (CM) [SLPB]
Jan 7 20:53:01 mercury kernel: Marking TSC unstable due to: cpufreq changes.
Jan 7 20:53:01 mercury kernel: Time: acpi_pm clocksource has been installed.
Jan 7 20:53:01 mercury kernel: lp0: using parport0 (interrupt-driven).
Jan 7 20:53:01 mercury kernel: Clocksource tsc unstable (delta = -145741813 ns)
There is often something to do with the avahi system as well in there,
but that appears to be quite common in the log. Lines similar to these
always seem to appear in the second or two before the end of the log
for that session.
To investigate the issue I booted to runlevel three several times. I
initially set the runlevel to be identical to runlevel one and
gradually introduced new services for each new boot. I tried several
combinations of the acpi, cpufrequtils and avahi scripts, and tried to
coax the machine to freeze. It did a few times, and the only common
element seems to be the presence of cpufrequtils in the start up. The
load on the machine doesn't appear to be a factor.
Of course, this sort of testing does take a long time, and it's quite
possible I've missed something. The freezes appear to be completely
random, so it's also possible I haven't waited long enough for a
freeze to manifest in some of my successful tests.
If you have anything you want me to try, please let me know.
Cameron Horsburgh
-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.22-3-486
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages cpufrequtils depends on:
ii debconf [debconf-2.0] 1.5.17 Debian configuration management sy
ii libc6 2.7-5 GNU C Library: Shared libraries
ii libcpufreq0 002-5 shared library to deal with the cp
ii lsb-base 3.1-24 Linux Standard Base 3.1 init scrip
cpufrequtils recommends no packages.
-- debconf information:
cpufrequtils/enable: true
--
Cameron Horsburgh
--- End Message ---