kernel oops on dual core notebook during suspend/resume, one core left working

[Reinhard Tartler]

Binary package hint: linux-source-2.6.22

Hardware: Thinkpad X60s, Intel Core 2 Duo, ipw3945 wifi
Software: Gutsy Updated daily, the problem exists since about 3 months however

Sometimes (but quite often) after resume, I notice my notebook is blinking with capslock after resume. I notice that /proc/cpuinfo only shows one core. /var/log/kern.log shows a kernel oops:

[40551.784000] CPU: 1
[40551.784000] EIP: 0060:[<0000002b>] Not tainted VLI
[40551.784000] EFLAGS: 00010086 (2.6.22-9-generic #1)
[40551.784000] EIP is at 0x2b
[40551.784000] eax: c04082a0 ebx: 00000005 ecx: fffff000 edx: 00000029
[40551.784000] esi: c04082a0 edi: 00000001 ebp: 00000001 esp: c1919f30
[40551.784000] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
[40551.784000] Process swapper (pid: 0, ti=c1918000 task=c18e2a40 task.ti=c1918000)
[40551.784000] Stack: c0271fdd 00000001 01000000 00000000 c01018e1 00000280 00000320 c01180df
[40551.784000] 00000001 e0002073 c0438000 ffffffff c010b60d 00050014 c0371e40 00000001
[40551.784000] c100897f 013ca000 00000001 01000000 00000000 00000001 c0116e45 00000001
[40551.784000] Call Trace:
[40551.784000] [<c0271fdd>] dmi_check_system+0x4d/0x70
[40551.784000] [<c01018e1>] calibrate_delay+0x11/0x730
[40551.784000] [<c01180df>] setup_local_APIC+0x28f/0x2a0
[40551.784000] [<c010b60d>] cpu_init+0x19d/0x250
[40551.784000] [<c0116e45>] start_secondary+0xb5/0x380
[40551.784000] [<c0116ae9>] cpu_exit_clear+0x19/0x40
[40551.784000] [<f8861731>] acpi_processor_idle+0x0/0x41f [processor]
[40551.784000] [<c010246c>] cpu_idle+0xac/0xe0
[40551.784000] =======================
[40551.784000] Code: Bad EIP value.
[40551.784000] EIP: [<0000002b>] 0x2b SS:ESP 0068:c1919f30
[40551.784000] Kernel panic - not syncing: Attempted to kill the idle task!

[Reinhard Tartler (siretart)]

attached the output of dmesg after resume

[Reinhard Tartler (siretart)]

output of cat /proc/cpuinfo after crash

[Reinhard Tartler (siretart)]

output of 'lspci', 'lspci -n', and 'lspci -vvv'

[Reinhard Tartler (siretart)]

I'm using the following kernel package:
ii linux-image-2.6.22-9-generic 2.6.22-9.25 Linux kernel image for version 2.6.22 on x86/x86_64

but as said, this also happened with earlier kernels

[Reinhard Tartler (siretart)]

Maybe another duplicate of Bug #129226, I've just upgraded my kernel and will retry. assigning to me in the mean time

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!