Messages in this thread |  | | | Date | Thu, 27 Nov 1997 00:03:53 +0100 | | From | Matthias Welwarsky <> | | Subject | 2.0.32: hard lockups with adaptec 2940U |
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Hello all.
I've seen hard lockups on three rather different machines that seem to be due to problems with the adaptec driver. One machine is a PPro-200 with Intel mainboard, the other two are a P166, Gigabyte mainbord w/HX chipset AFAIR. On all three machines the lockup could be triggered by simply copying large files (abt 3-5Meg each) from CDROM to one of the SCSI disks. The machines lock up hard, nothing in the logs.
For one of the machines (my own one) I solved the problem by replacing the 2940U with an older non-ultra-2940 controller. None of the three machines is equipped with Ultra-SCSI devices, though.
Last night I compiled a kernel with tagged command queueing disabled and the particular machine, one of the P166, is up since then and has not shown any unusual behaviour. However, this machine has been running the July-27 snapshot of the driver with tagged command queueing enabled without problems.
The lockups happen on no-load conditions, too. On the PPro it once happended on simply mounting the CDROM. Compiling the Kernel has been successful in any case, however.
To gather some more information I'll try to redirect kernel messages to the console on one of the P166, the PPro is a production machine and now back at 2.0.26
-- Matthias
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