Re: Strange DMA-errors and system hang with Promise 20268

["Mario 'BitKoenig' Holbe" <Mario.Holbe@RZ.TU-Ilmenau.DE>]

Henrik Persson <nix@syndicalist.net> wrote:
> boxes. It is up and running without any problems and then suddently i
> get this in the syslog:
> Mar  6 20:29:42 eurisco kernel: hdf: dma_timer_expiry: dma status == 0x61
> And a few seconds later the system has frozen and I have to reset the

Same here:

Mar  4 01:01:06 darkside kernel: hde: dma_timer_expiry: dma status == 0x21
Mar  5 01:02:00 darkside kernel: hde: dma_timer_expiry: dma status == 0x21
Mar  6 01:10:22 darkside kernel: hde: dma_timer_expiry: dma status == 0x21

Can you somehow correlate this to start of S.M.A.R.T selftests?

I suspect it having something to do with 2.4.25 new "One last
read after the timeout" in ide-iops.c and accessing the drive
while selftest running (possibly especially short selftest).
Here, daily at 01:00 smartmontools runs smart short selftests
and a bit later the machine hangs.
Today, I disabled that job and the machine stays stable.

> error another device, but it's allways a device on the promise
> controller, fails.

Dito... PDC20269 U133TX2
CONFIG_BLK_DEV_PDC202XX_NEW=y

And until now it was always hde connected to the promise
controller.

> I've seen this behaviour with 2.4.25, 2.4.24 and 2.4.23 (I think).

My machine did run at least since:
Jan 18 09:41:21 darkside kernel: Linux version 2.4.24
...
Feb 28 01:43:48 darkside kernel: Linux version 2.4.24
Feb 28 04:58:47 darkside kernel: Linux version 2.4.25

First time the problem occured was Mar  4 01:01:06.

smartmontools last update was at Feb 14 03:04


regards,
   Mario
-- 
I heard, if you play a NT-CD backwards, you get satanic messages...
That's nothing. If you play it forwards, it installs NT.