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* VIA KT133A crash *post* 2.4.3-ac6
@ 2001-06-12 12:10 Rachel Greenham
  2001-06-12 12:42 ` Christian Bornträger
  2001-06-12 15:56 ` Alan Cox
  0 siblings, 2 replies; 14+ messages in thread
From: Rachel Greenham @ 2001-06-12 12:10 UTC (permalink / raw)
  To: linux-kernel

This seems to just run and run... Sorry I couldn't report this earlier, 
but I've only just got this machine...

With DMA (UDMA Mode 5) enabled, my machine crashes on kernel versions 
from 2.4.3-ac7 onwards up to 2.4.5 right up to 2.4.5-ac13. 2.4.3 vanilla 
and 2.4.3-ac6 are completely stable. -ac7 of course is when a load of 
VIA fixes were done. :-}


System is:

CPU: Athlon 1.33 GHz with 266MHz FSB
Mobo: Asus A7V133 with 266MHz FSB, UltraDMA100 (PDC20265 according to 
kernel boot messages)
    BIOS has been updated to latest available (massively unstable before)
512Mb PC133 RAM
Voodoo 3
3Com 3C905B
IBM UDMA100 41Gb Deskstar


SuSE 7.1 updated to current-everything
SuSE default kernel and self-built kernels of various versions


With DMA disabled, *all* kernels are completely stable.

With DMA (any setting, but UDMA mode 5 preferred of course) enabled, on 
kernels 2.4.3-ac7 and onwards, random lockup on disk access within first 
few minutes of use - sometimes very quickly after boot, sometimes as 
much as ten minutes later given use. Running bonnie -s 1024 once or 
twice after boot generally excites it too. :-}. Lockup is pretty severe: 
machine goes completely unresponsive, Magic SysRq doesn't work. About 
the only thing that does still work is the flashing VGA cursor. :-)

Actual tested kernels:

2.4.0.SuSE, 2.4.0 vanilla, 2.4.3 vanilla, 2.4.3-ac6 - No failure
2.4.3-ac7, 2.4.4 vanilla, 2.4.5 vanilla, 2.4.5-ac13 - Failure.


^ permalink raw reply	[flat|nested] 14+ messages in thread
* Re: VIA KT133A crash *post* 2.4.3-ac6
@ 2001-06-17 11:56 Jason T. Collins
  0 siblings, 0 replies; 14+ messages in thread
From: Jason T. Collins @ 2001-06-17 11:56 UTC (permalink / raw)
  To: justin; +Cc: linux-kernel wrote:
 > I remember seeing something about how some via ide chipsets (686b I 
 > and [some?] ide promise controllers had problems with data corruption on
 > the IBM dtla-series udma drives, and that IBM stated the problem was 
 > the controllers.  Is there a chance a problem like that could be 
 > up the kernel?

I recently upgraded my system so it now (undeliberately!) seems to 
reproduce every problem ever mentioned here or elsewhere with regards to 
the VIA chipset -- I now have/have had the VIA timer bug (fixed due to 
patch), SB Live problems (seem to be resolved, card shuffling), nVidia 
crashing, and IDE lockups similiar to those mentioned earlier in this 
thread.  There's almost enough material for a VIA on Linux FAQ...

In addition, I had the IBM+Promise+VIA problem.  Moving the drive to my 
on-board 686A as others have done has solved it..  before that, Cerberus 
didn't last more than about 30 seconds with DMA enabled before causing 
random trashing of memory and other nasty disasters. 

Now I get about 3-10 minutes in and bizarrely, Linux just gives up -- 
disk access stops for no apparent/printked reason, and no amount of 
tweaking DMA settings or VM parameters seems to change that, unless I 
disable DMA completely.  In-memory programs keep running, but anything 
needing disk access blocks indefinitely.  What's weirder is, in about 
10% of the crashes (I've done this a LOT), hitting Alt-SysRq-S (sync) a 
couple times knocks the system out of the state and Cerberus will run as 
normal for about 5 or 10 more minutes and crash again.  :/  At least it 
isn't corrupting data.

I think we're trying to debug about a half dozen critical problems all 
at the same time here. ;)

To contribute to the hardware matching:

Jason's Box:
Abit KA7 (KX133, VIA686A Southbridge) / Athlon 850, latest BIOS
512 MB CAS2 PC133 SDRAM (Mushkin)
Promise Ultra100 (2.01 B 27 BIOS, latest)
OHCI-1394 Firewire Controller (Texas Instruments)
Bt878 video capture card
Creative Labs CT4620 SB Live!
nVidia GeForce 2 MX 64 MB (NV11 rev b2, LeadTek, latest BIOS)

hda=QUANTUM FIREBALLP LM20.5, FwRev=A35.0700, SerialNo=184006731872
hdb=IBM-DTLA-307060, FwRev=TX8OA50C, SerialNo=YQDYQFHT566
hdc=Pioneer DVD-ROM ATAPIModel DVD-104S 020, FwRev=E2.02, SerialNo=
hde=Maxtor 54610H6, FwRev=JAC61HU0, SerialNo=F600VF1D
hdg=Maxtor 54610H6, FwRev=JAC61HU0, SerialNo=F600TNTD

Jason T. Collins
Software Engineer
VA Linux Systems

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2001-06-17 12:02 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2001-06-12 12:10 VIA KT133A crash *post* 2.4.3-ac6 Rachel Greenham
2001-06-12 12:42 ` Christian Bornträger
2001-06-12 13:19   ` Rachel Greenham
2001-06-12 15:58   ` Alan Cox
2001-06-12 15:56 ` Alan Cox
2001-06-16  0:03   ` Thomas Molina
2001-06-16 10:15     ` Rachel Greenham
2001-06-16 13:42       ` Thomas Molina
2001-06-16 14:13         ` Christian Bornträger
2001-06-16 18:27           ` Rachel Greenham
2001-06-16 15:24         ` Rachel Greenham
2001-06-16 16:57           ` Justin Guyett
2001-06-16 17:25             ` Rachel Greenham
2001-06-17 11:56 Jason T. Collins

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