Where's the culprit?

[Lennart Sorensen]

On Mon, Sep 05, 2011 at 08:29:25PM -0400, Peter King wrote:
> Culprit found! (I think.)
> 
> After some more testing and lockups, I swapped out the ethernet card. It then
> rebooted, but crashed under heavy load. Upon the reboot, well, lo and behold, 
> this showed up in dmesg:
> 
> Sep  5 18:35:54 theseus kernel: Initializing CPU#0
> Sep  5 18:35:54 theseus kernel: Pid: 0, comm: swapper Not tainted 3.0.4-gentoo #1
> Sep  5 18:35:54 theseus kernel: Call Trace:
> Sep  5 18:35:54 theseus kernel: [<c1061580>] ? bad_page+0x9c/0xb1
> Sep  5 18:35:54 theseus kernel: [<c10621a3>] ? free_pages_prepare+0x55/0xc5
> Sep  5 18:35:54 theseus kernel: [<c1062226>] ? __free_pages_ok+0x13/0x73
> Sep  5 18:35:54 theseus kernel: [<c15a60b5>] ? free_all_memory_core_early+0xb9/0x108
> Sep  5 18:35:54 theseus kernel: [<c159fd29>] ? mem_init+0x23/0x218
> Sep  5 18:35:54 theseus kernel: [<c1592572>] ? start_kernel+0x136/0x28e
> Sep  5 18:35:54 theseus kernel: [<c1592287>] ? kernel_init+0xf2/0xf2
> Sep  5 18:35:54 theseus kernel: Disabling lock debugging due to kernel taint
> Sep  5 18:35:54 theseus kernel: Pid: 0, comm: swapper Tainted: G    B       3.0.4-gentoo #1
> Sep  5 18:35:54 theseus kernel: Call Trace:
> Sep  5 18:35:54 theseus kernel: [<c1061580>] ? bad_page+0x9c/0xb1
> Sep  5 18:35:54 theseus kernel: [<c10621a3>] ? free_pages_prepare+0x55/0xc5
> Sep  5 18:35:54 theseus kernel: [<c1062226>] ? __free_pages_ok+0x13/0x73
> Sep  5 18:35:54 theseus kernel: [<c15a60b5>] ? free_all_memory_core_early+0xb9/0x108
> Sep  5 18:35:54 theseus kernel: [<c159fd29>] ? mem_init+0x23/0x218
> Sep  5 18:35:54 theseus kernel: [<c1592572>] ? start_kernel+0x136/0x28e
> Sep  5 18:35:54 theseus kernel: [<c1592287>] ? kernel_init+0xf2/0xf2
> Sep  5 18:35:54 theseus kernel: Pid: 0, comm: swapper Tainted: G    B       3.0.4-gentoo #1
> Sep  5 18:35:54 theseus kernel: Call Trace:
> Sep  5 18:35:54 theseus kernel: [<c1061580>] ? bad_page+0x9c/0xb1
> Sep  5 18:35:54 theseus kernel: [<c10621a3>] ? free_pages_prepare+0x55/0xc5
> Sep  5 18:35:54 theseus kernel: [<c1062226>] ? __free_pages_ok+0x13/0x73
> Sep  5 18:35:54 theseus kernel: [<c15a60b5>] ? free_all_memory_core_early+0xb9/0x108
> Sep  5 18:35:54 theseus kernel: [<c159fd29>] ? mem_init+0x23/0x218
> Sep  5 18:35:54 theseus kernel: [<c1592572>] ? start_kernel+0x136/0x28e
> Sep  5 18:35:54 theseus kernel: [<c1592287>] ? kernel_init+0xf2/0xf2
> 
> ... and so on, for some 45 repetitions, before the kernel declares that it's
> initializing HighMem. So I think that nails it down: bad memory sticks. Back
> to Canada Computers.

Not buying memory on the motherboard compatibility list?

What kind of motherboard and what kind of ram?

-- 
Len Sorensen
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