Messages in this thread Patch in this message | | | Date | Thu, 28 Aug 2003 13:10:19 -0700 | From | Andrew Morton <> | Subject | Re: 2.6.0-test4: Unable to handle kernel NULL pointer dereference |
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Christopher Swingley <cswingle@iarc.uaf.edu> wrote: > > kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 > ... > kernel: EIP is at find_inode_fast+0x1a/0x60 > ... > model name : AMD Athlon(tm) XP 1800+ > ...
You've been bitten by the athlon-prefetch(0)-goes-oops problem.
Nobody seems to be working this, so I'll be sending the below in to Linus.
--- 25/include/asm-i386/processor.h~disable-athlon-prefetch 2003-08-23 13:48:16.000000000 -0700 +++ 25-akpm/include/asm-i386/processor.h 2003-08-23 13:48:16.000000000 -0700 @@ -578,6 +578,8 @@ static inline void rep_nop(void) #define ARCH_HAS_PREFETCH extern inline void prefetch(const void *x) { + if (cpu_data[0].x86_vendor == X86_VENDOR_AMD) + return; alternative_input(ASM_NOP4, "prefetchnta (%1)", X86_FEATURE_XMM, _
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