My system too often freezes

[Eric Jacoboni <jaco@titine.fr.eu.org>]

Hi,

I've a Cyrix P166+ with 96 EDO Ram on an Asus motherboard
PI55T2P4C and a Matrox Millenium MGA video card. My system runs under
Debian Hamm.

I often use Xemacs and Gnus (original deb packages) under X11
(3.3.2.3-1) and Wmaker (0.19 from slink).

Too often, the system freeze when under X11 and the _only_ solution is 
to press the reset button :-( No way to have a console.

I've read docs about set6x86 and i've removed it from rc.boot to be
sure the problem doesn't come from a bad configuration of it. In both
cases (with or without set6x86) the problem arises...

6x86_reg gives now :

=-=-=-=-=-=

6x86 (Classic/L/MX) Register Dump utility

6x86 DIR0: 0x31 2X core/bus clock ratio
     DIR1: 0x16 6x86 Rev. 2.6

Wait a moment...
Calculated BogoMIPS:    130.00
Kernel BogoMIPS:        106.09

6x86 CCR0: 0x2  NC1 set (address region 640Kb-1Mb non-cacheable)
     CCR1: 0x82 NO_LOCK reset
     CCR2: 0x80 SUSP_HLT reset (low power suspend mode disabled)
     CCR3: 0x10
     CCR4: 0x17 DTE cache enabled, no I/O recovery time
     CCR5: 0x21 slow LOOP disabled, allocate cache lines on write misses

6x86 Address Region Register dump:
  ARR0: address = 0xA0000 , size = 128 KB
    RCR = 0x9 : not cached, write gathering
  ARR1: address = 0xC0000 , size = 256 KB
    RCR = 0x1 : not cached
  ARR2: disabled
  ARR3: address = 0xA8000 , size = 32 KB
    RCR = 0x9 : not cached, write gathering
  ARR4: disabled
  ARR5: disabled
  ARR6: address = 0x6000000 , size = 32 MB
    RCR = 0x1 : not cached
  ARR7: address = 0x0 , size = 128 MB
    RCR = 0xB : cached, weak write ordering, write gathering
=-=-=-=-=

I've read the doc about the Cyrix 'coma' bug and i've try to use
set6x86 to set the NO_LOCK bit : no change...

(BTW : the doc speaks about a little source code to detect this coma
bug but i've found nowhere...)

I've read the various log files : nothing... Is there a way to have a
trace of the crash  (a core dump or something like that ?).

Thanks for any advice...
-- 
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Éric Jacoboni     « J'ai épuisé le tout-venant, je vais me risquer dans
                    le bizarre » (M. Audiard)
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