Umm, Linus, should 2.1.118 really fix the crash I did report?
Well, it doesn't. I get exactly the same backtrace (minus address differences)
now:
|EIP: 0010:[<C0180B4C>] apm_get_event+0x28
|Call Trace: C0181100 do_apm_timer
| C0180F74 get_event+0x10
| C0181041 check_events+0x9
| C0181174 do_apm_timer+0x74
| C01115B1 timer_bh+0x305
| C0117949 do_bottom_half+0x49
| C010AD53 do_IRQ+0x3b
| C0109CA0 ret_from_intr
| C4923000 ??? unknown
| C0108A00 __switch_to+0x68
(this points to the opcode right after the lldt call)
c01089f4: 39 42 64 cmpl %eax,0x64(%edx)
c01089f7: 74 07 je c0108a00 <__switch_to+0x68>
c01089f9: 0f 00 91 48 02 lldt 0x248(%ecx)
c01089fe: 00 00
c0108a00:>>>>>>>8b 83 04 02 00 movl 0x204(%ebx),%eax
c0108a05: 00
| C0110B07 schedule+0x22f
| C0110560 process_timeout
| C012D331 do_select+0x1a1
| C012D6B5 sys_select+0x345
| C01822BE tty_read+0xb2
| C010DB1E old_select+0x5a
| C0109BC8 system_call+0x38
|Code: 0F A1 07 1F 89 C5 8B 44 24 14 66 89
|apm_get_event+0x28:
| popl %fs
| popl %es
| popl %ds
| movl %eax,%ebp
| movl 0x14(%esp,1),%eax
| ...
Or should drivers/char/apm_bios.c be fixed with exceptionhandlers or
something like it?
The only difference between the vanilla kernel and mine is that mine
does 100 times more APM timerinterrupts (1/100 s) to show the bug.
(BTW: Mingo's first patch *DID* fix the problem.)
Ciao, Marcus
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