Messages in this thread | | | Date | Mon, 1 Jun 1998 14:03:13 +0200 | From | Wolfgang Walter <> | Subject | Re: A new K6 bug |
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On Mon, Jun 01, 1998 at 04:06:22AM +0200, Benoit Poulot-Cazajous wrote: > > The problem reported by andreas@camus.xss.co.at with crashme is really caused > by a K6 bug. It can be reproduced at will on 2.0.xx kernels. It looks like > 2.1.xx kernels hide the bug. > > Here is how to reproduce it : > > $ cat a.s > .text > .align 4096 /* r1 */ > .globl _start > _start: > movl _start, %edi /* S1 */ > cmpb 0x80000000(%edi),%dl /* r2, S2 */ > je nowhere /* r3 */ > ret > $ as -o a.o a.s > $ ld -defsym nowhere=0xc0000000 a.o > $ ./a.out > <lockup. hard reset required> > > -- Benoit >
Indeed, this little program chrashes all our K6 under linux 2.0.x, even those I bought 1 week ago. The mainboard, etc doesn't matter at all (we have HX, TX boards from gigabyte and SP97-V and SP97-XV from asus with SIS chipsets).
Would be very nice if a workaround could be found for 2.0.x.
Wolfgang Walter
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