Messages in this thread | | | Date | Tue, 15 Mar 2005 13:09:03 +0100 | From | jerome lacoste <> | Subject | enabling IOAPIC on C3 processor? |
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I have a VIA Epia M10000 board that crashes very badly (and pretty often, especially when using DMA). I want to fix that.
Serial console + magic SysRQ didn't help so I am going the nmi watchdog way. But in order to have nmi watchdog I need APIC, right?
The C3 processor seems to support IOAPIC. (http://www.via.com.tw/en/products/processors/c3/specs.jsp)
But: - I don't see anything in the BIOS related to APIC. - grep APIC /lib/modules/`uname -r`/build/.config shows me that all APIC options are 'y'. - dmesg | grep APIC tells me "no local APIC present or hardware disabled". - adding lapic kernel parameter doesn't change that. - and of course, nmi_watchdog=1 or 2 gives me NMI count 0 in /proc/interrupts.
Did I miss something when it comes to enabling IOAPIC support on C3 processor?
Note: I also see a lot an increasing ERR count in /proc/interrupts, especially when I put my box in conditions that make it also more unstable (i.e. sending files on the network while using the PVR-350 using mythtv). Not sure if it is related.
Jerome
medios@medios:~$ dmesg | grep APIC No local APIC present or hardware disabled mapped APIC to ffffd000 (013c1000)
medios@medios:~$ grep APIC /lib/modules/`uname -r`/build/.config CONFIG_X86_UP_APIC=y CONFIG_X86_UP_IOAPIC=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y
Grub options [...] kernel /vmlinuz-2.6.11-medios1 root=/dev/hda1 ro console=ttyS0,57600n8 console=tty0 nmi_watchdog=1 lapic [...] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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