Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sat, 11 Oct 2003 11:37:01 +0200 | From | Manfred Spraul <> | Subject | Re: 2.6.0-test7 DEBUG_PAGEALLOC oops |
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Mike wrote:
>Unable to handle kernel paging request at virtual address c034a000 > printing eip: >c0134d5a >*pde = 00102027 >*pte = 0034a000 > Fault trying to read from address 0xc034a000: the page is not mapped.
>Oops: 0000 [#1] >CPU: 0 >EIP: 0060:[<c0134d5a>] Not tainted >EFLAGS: 00010002 >EIP is at store_stackinfo+0x4e/0x80 > In store_stackinfo: the function stores a backtrace of the last kmem_cache_free caller in the object - might be useful, and the memory is not used.
>eax: 00000000 ebx: c7802f98 ecx: c0301390 edx: c030138c >esi: c0349ffe edi: 017e0008 ebp: c0349da6 esp: c0349d96 >ds: 007b es: 007b ss: 0068 >Process swapper (pid: 0, threadinfo=c0348000 task=c02fcbe0) > The esp value is sane, the stack is at 0xc0348000, and the fault is at 'a000: just behind the end of the stack. I assume the fauling line is svalue = *sptr++;
It looks like store stackinfo accesses memory behind the end of the stack. Which gcc version do you use? Could you send me mm/slab.o?
-- Manfred
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