Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413

[Robert Richter]

On 02.12.11 21:48:20, Markus Trippelsdorf wrote:
> BTW I always see (mostly only on screen, sometimes in the logs):
> 
> [Firmware Bug]: cpu 2, try to use APIC500 (LVT offset 0) for vector 0x10400, but the register is already in use for vector 0xf9 on another cpu
> [Firmware Bug]: cpu 2, IBS interrupt offset 0 not available (MSRC001103A=0x0000000000000100)
> [Firmware Bug]: using offset 1 for IBS interrupts
> [Firmware Bug]: workaround enabled for IBS LVT offset
> perf: AMD IBS detected (0x0000001f) 
> 
> But I hope that it is only a harmless warning. 
> (perf Instruction-Based Sampling)

Yes, the message always apears on AMD family 10h. Nothing to worry
about.

A patch is on the way to soften the message to not scare the people:

 http://git.kernel.org/?p=linux/kernel/git/tip/tip.git;a=commit;h=16e5294e5f8303756a179cf218e37dfb9ed34417

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center

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