Date: Tue, 4 Nov 2003 17:38:25 +0100 (CET) From: Harti Brandt <brandt@fokus.fraunhofer.de> To: John Baldwin <jhb@freebsd.org> Cc: current@freebsd.org Subject: RE: New interrupt stuff breaks ASUS 2 CPU system Message-ID: <20031104173702.S72398@beagle.fokus.fraunhofer.de> In-Reply-To: <20031104164938.D72398@beagle.fokus.fraunhofer.de> References: <XFMail.20031104103812.jhb@FreeBSD.org> <20031104164938.D72398@beagle.fokus.fraunhofer.de>
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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). More information: I have replaced all the reserved vectors with individual ones, that set tf_err to the index (vector number). It appears the the vector number is 39 decimal. What does that mean? harti -- harti brandt, http://www.fokus.fraunhofer.de/research/cc/cats/employees/hartmut.brandt/private brandt@fokus.fraunhofer.de, harti@freebsd.org
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