Re: StackPages errors (CALLTRACE)

[Gabriel Paubert]

Pablo Fischer wrote:
> Hi..
> 
> I have MDK 8.2 and I get this error with: MDK 8.2, RH 7.2, RH 7.3.. but
> just with ONE COMPUTER, the other computers works fine.
> 
> Ok.. I have a SpeedTouch, but to get it work I need to
> 
> 1) modprobe the module
> 2) Then.. call the speedmgmt (a binary)
> 
> When I call the speedmgmt, I get:
> 
> 
> Process speedmgmt (pid: 1748, stackpage=c1827000)
> Stack: c0263a10 c1040000 c0263a4c 00000212 00000000 00000000 c4c10f60
> c4d79c9e
> c11e4e60 00000001 00000000 00000000 00000001 00000001 00000000 bffff752
> c3430460 fffffdfd c398cde0 c0312ae0 c4d79f97 c3430460 bffff758 bffff758
> Call Trace:
> [af_packet:__insmod_af_packet_O/lib/modules/2.4.18-6mdk/kernel/net/pac+-1548448/96] [af_packet:__insmod_af_packet_O/lib/modules/2.4.18-6mdk/kernel/net/pac+-70498/96] [af_packet:__insmod_af_packet_O/lib/modules/2.4.18-6mdk/kernel/net/pac+-69737/96] [file_ioctl+340/368] [sys_ioctl+546/608]
> Call Trace: [<c4c10f60>] [<c4d79c9e>] [<c4d79f97>] [<c01413b4>]
> [<c01415f2>]
> [system_call+51/64]
> [<c0106f23>]
> Code: 0f 44 c2 8b 57 04 0d 80 00 00 c0 89 42 18 8b 07 8b 57 04 8b
> 
> Why I get that error?

Because you are trying to execute a CMOV (0f 4x) instruction. The module
you are loading is compiled for PPro or higher.

> 
> I have a Compaq (AMD K6 - 500mhz) and 64 of Memory.

Hence no CMOV support (cat /proc/cpuinfo).

	Gabriel.