Bug#553596: linux-image-2.6.31-1-amd64: seems to run normally, but then suddenly hangs

[Peter Marschall <peter@adpm.de>]

Package: linux-2.6
Version: 2.6.31-1
Severity: normal

Hi,

since 2.6.30 (Debian releases 2.6.30-5, 2.6.30-6, 20.6.30-8 and 2.56.30-1)
I am having issues with the kernel on this system:
The kernel boots up normally, runs for a while (sometimes up to 4 or 5 hours)
and then suddenly stops responding.
It does not react to any input, is not reachable via the network, ...
The only action it (sometimes) accepts, is SysRq+B.

Additional information:
* Kernel 2.6.26 and earlier do not show this issue
* Syslog does not contain any entries around the time the system stops responding.
* The CPU belongs to those with the Dual-CPU bug reported for 2.6.30-5.
  So, I naturally supposed this to be the cause, but even later releases
  show te issues
* kernel command line contains "noapic" (required for stable operation for ages)
* kernel disables IRQ #7 after some time
  (with older, working kernels as well with the new ones that fail)


If you need any more info, please tell, and I wil ltry to gather it.

Thanks for maintaining the Linux kernel in debian
Peter


-- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: FUJITSU SIEMENS
product_name: ESPRIMO P                     
product_version:         
chassis_vendor: FUJITSU SIEMENS
chassis_version: ESPP 
bios_vendor: FUJITSU SIEMENS // Phoenix Technologies Ltd.
bios_version: 6.00 R1.15.2461.A2              
board_vendor: FUJITSU SIEMENS
board_name: D2461-A2
board_version: S26361-D2461-A2

** Network interface configuration:

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.31-1-amd64 depends on:
ii  debconf [debconf-2.0]         1.5.28     Debian configuration management sy
ii  initramfs-tools [linux-initra 0.93.4     tools for generating an initramfs
ii  module-init-tools             3.11-1     tools for managing Linux kernel mo

Versions of packages linux-image-2.6.31-1-amd64 recommends:
ii  firmware-linux-free           2.6.31-1   Binary firmware for various driver

Versions of packages linux-image-2.6.31-1-amd64 suggests:
ii  grub                          0.97-56    GRand Unified Bootloader (dummy pa
ii  grub-legacy [grub]            0.97-59    GRand Unified Bootloader (Legacy v
ii  linux-doc-2.6.31              2.6.31-1   Linux kernel specific documentatio

Versions of packages linux-image-2.6.31-1-amd64 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
pn  firmware-iwlwifi              <none>     (no description available)
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
ii  firmware-ralink               0.18       Binary firmware for Ralink RT2561,

-- debconf information:
  linux-image-2.6.31-1-amd64/postinst/missing-firmware-2.6.31-1-amd64:
  linux-image-2.6.31-1-amd64/postinst/bootloader-error-2.6.31-1-amd64:
  linux-image-2.6.31-1-amd64/prerm/removing-running-kernel-2.6.31-1-amd64: true
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.31-1-amd64/prerm/would-invalidate-boot-loader-2.6.31-1-amd64: true
  linux-image-2.6.31-1-amd64/postinst/depmod-error-initrd-2.6.31-1-amd64: false
  linux-image-2.6.31-1-amd64/postinst/bootloader-test-error-2.6.31-1-amd64: