On Thu, Apr 06, 2000 at 04:27:48PM +0200, Thomas Troeger wrote:
> Hello,
>
> I'm using a DAWICONTROL 2974 PCI scsi controller, and after switching to kernel
> 2.3.99pre3 I now receive strange scsi errors. The old kernel 2.2.14 had those
> errors once or twice, but with the new kernel, they occur quite frequently. I
> compiled tmscsim as a module, since I only use the extra devices when I need
> them (they're installed in an external scsi tower). After usage of maybe 1
> hour, sometimes less, the driver crashes. While with 2.2.14 it still was
> possible to remove the module from kernel memory, unmount all file systems and
> reboot, with 2.3.99 the machine locks up totally. I'm including some logs and
> the /proc/scsi/* information as mentioned in README.tmscsim.
Hi Thomas,
thanks for your report and all the info that you provide!
Is there a certain pattern in the crashed? I mean, e.g. does the crash
happen when you try to access both devices in parallel? Or just randomly? At
high SCSI load?
Of course you can play with the settings:
* Increasing (no joke!) sync speed to 10MHz. There once was a report about a
strange device (also Yamaha, IIRC), that was confused by the driver
negotiating 8MHz ...
* Disabling Tagged Command Queueing for the disk
* Disabling all sorts of other settings ...
If one if the latter two helps, this points to a bug in the driver, of course.
Before you do all that, let me suggest to try the latest driver from
http://www.garloff.de/kurt/linux/dc390/
There are a number of minor problems which were solved since the last release.
I should clean the code a little bit and sent it off to Linus, finally ...
Regards,
--
Kurt Garloff <[EMAIL PROTECTED]> Eindhoven, NL
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SuSE GmbH, Nuernberg, FRG SCSI, Security
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