On Tuesday 31 October 2006 20:41, Jack Vogel wrote:
= I still think it looks like some kind of scheduler issue going on
= here, so maybe this is something to check.
Ok. First I tried to cvs the sys/dev/em back to 6.1 -- the new kernel
had the same problems...
Then I tried to change the 'PCI latency timer' in the BIOS -- from
the minimum of 32 to the maximum of 360. Same problems.
Then, finally, I decided to give the ULE-scheduler a try -- and things
seem to work just fine (with polling enabled on the interface)...
The dump has completed -- in 7 hours or so...
Could this (failure of the BSD44 scheduler) be due to my using slightly
different CPUs (Opteron 244 in the first slot and 246 in the second)? I
thought, BIOS/motherboard take care to "downgrade" the second one to
match -- according to the dmesg.boot, both processors are identified as:
CPU: AMD Opteron(tm) Processor 244 (1800.01-MHz K8-class CPU)
But if the scheduler looks at some CPU-local register, it may, in some
cases, still think, it is running on 246?
To summarize, unless someone else continues to see em-related problems,
the current driver is fine, I guess...
-mi
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
