On Thu, 9 Sep 2004, John Baldwin wrote: > On Wednesday 08 September 2004 12:39 pm, Andy Farkas wrote: >> My box is still crashing with above APIC panic when I do a >> make -j4 buildworld. >> >> In file src/sys/i386/i386/local_apic.c I tried increasing >> BEFORE_SPIN to 100000000 but it still panics. >> >> Any suggestions on why this is happenning? > > Try changing the consant to -1. Note that I apparently just managed to > trigger a hard lockup on my test machine here with that change, but it had > managed to run for about 20 hours under heavy load that panic'd in a few > hours on a stock kernel. > >> FreeBSD 5.3-BETA3 #1: Wed Sep 8 00:37:07 EST 2004 I changed it to -1. Now I get a hard lockup. I assume its spinning inside lapic_ipi_wait(). FYI: the box is a *slow* 200MHz quad Pentium-Pro. I mention this because the IPI patches posted a couple weeks ago mention fixing fast CPUs... Also, "this never used to happen before." (instability started late August) -andyfReceived on Fri Sep 10 2004 - 04:06:21 UTC
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