Messages in this thread |  | | Date | Fri, 20 Sep 1996 12:35:04 +0200 | From | "Dr. Werner Fink" <> | Subject | Re: Bad news |
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> > Can you copy down the oops? You'd need to do it by hand, and it's a very > boring thing to do, I know, but it might be instructive.
Something like the following: ------------------------------------------------------------------------- ... at vrituall address c0000001 current->txx.cr3=00101000, %cr3=00101000 *pde=00102067 *pte=00000027 Oops: 0000 CPU: 0 EIP: 0010[<0018d912>] EFLAGS: 00010202 eax: 00000001 ebx: 00000000 ecx: 00092f60 edx: 00092f64 esi: 00000000 edi: 00095808 ebp: 00000000 esp: 00092f24 ds: 0018 es: 0018 fs: 002b gs: 0018 ss:0018 Process swapper (pid: 1, process nr: 1 stackpage=00092000) Stack: 00000000 00000000 00000000 00009000 00092f69 00000000 00092f6e 00000008 0000017d 00092f6c 00000000 0008e000 00001000 00000246 00000000 00000002 00000000 00092f64 00000000 00000000 00090000 0018e2ca 00000000 001bea80 Call Trace: [<0018e2ca>][<001899b3>][<00168e81>][<0012dd68>][<0010a5b2>][<0011e4d0>][<001093aa>] [<001091b4>][<001091bb>][<00109360>] Code ff 08 88 d6 e5 00 00 8b b7 f0 00 00 00 43 85 f6 0f 84 54 -------------------------------------------------------------------------
no warranty for absolut correctness :-)
> > This oops occures on an i486-PCI-System with saturn II Rev 4 (without bug), > > ncr53c810, and an amd586-p75 ... maybe I should check this with my old > > amd486dx4-100. > > > > On other systems on work (all i586) there are no problems with ncr53c810 > > and 53c7,8xx driver .... timing problem? > > Or a NULL pointer dereference that isn't seen by the Pentium machines because > the pentium 4MB pages hide the problem (the kernel NULL address is actually > mapped to physical address 0 on Pentiums). You can try this by undefining > "USE_PENTIUM_MM" in asm-i386/pgtable.h and see if the pentiums crash..
Hmmm --- interesting point ... I -- or better -- we will try it :-)
> > Linus >
Thanks
Werner
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