On 04-Nov-2003 Harti Brandt wrote: > On Tue, 4 Nov 2003, Harti Brandt wrote: > > HB>On Tue, 4 Nov 2003, John Baldwin wrote: > HB> > HB>JB> > HB>JB>On 04-Nov-2003 Harti Brandt wrote: > HB>JB>> > HB>JB>> Hi, > HB>JB>> > HB>JB>> I have an ASUS system with 2 CPUs that I need to run at HZ=10000. This > HB>JB>> worked until yesterday, but with the new interrupt code it doesn't boot > HB>JB>> anymore. It works for the standard HZ, but if I set HZ=1000 I get a double > HB>JB>> fault. I suspect a race condition in the interrupt handling. My config > HB>JB>> file has > HB>JB>> > HB>JB>> options SMP > HB>JB>> device apic > HB>JB>> options HZ=1000 > HB>JB> > HB>JB>Ok, I can try to reproduce. > HB>JB> > HB>JB>> Device configuration finished. > HB>JB>> Timecounter "TSC" frequency 1380009492 Hz quality -100 > HB>JB>> Timecounters cpuid = 0; apic id = 00 > HB>JB>> instruction pointer = 0x8:0xc048995d > HB>JB>> stack pointer = 0x10:0xc0821bf4 > HB>JB>> frame pointer cpuid = 0; apic id = 00 > HB>JB>> > HB>JB>> 0xc048995d is in critical_exit. It is the jmp after the popf from > HB>JB>> cpu_critical_exit. > HB>JB> > HB>JB>This is where interrupts are re-enabled, so you are getting an interrupt. > HB>JB>It might be helpful to figure what type of fault you are actually getting. > HB> > HB>tf_err is 0, tf_trapno is 30 (decimal). > > Hmm, this seems to be the trapno that is set for all otherwise unused > vectors, correct? There seems to be no info in the trapframe that shows > me where this trap came from. How can I find this out? You can't easily. If you have an APIC, you can try looking at the ISR registers. You need to add some code to local_apic.c that dumps the ISR contents and then call that from trap() prehaps. -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/Received on Tue Nov 04 2003 - 08:26:34 UTC
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