Messages in this thread |  | | | Subject | Re: [discuss] Re: VIA x86-64 bootlogs needed | | From | Nicholas Miell <> | | Date | Tue, 25 Jul 2006 16:05:14 -0700 |
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On Wed, 2006-07-26 at 00:18 +0200, Andi Kleen wrote: > > MSI Master2-FAR with VIA K8T800, kernel-2.6.17-1.2157_FC5 > > Thanks. > > > With any luck, this APIC rework will fix this board's habit of > > spontaneously turning off interrupts at the IOAPIC level without the > > kernel's knowledge. > > Unlikely unfortunately. How does it look like when they get turned off? >
I stop getting any interrupts from the device in question (either the on-board UHCI controllers or the on-board SATA controller) -- i.e. mouse movement gets jerky because uhci-hcd is operating purely by polling or I start getting libata timeouts in my logs.
I have an abomination of a systemtap script which calls unmask_IO_APIC_irq directly which instantly "fixes" it when things go wrong.
I also have another stap script which records stack traces when mask_IO_APIC_irq and unmask_IO_APIC_irq called in order to check if the IRQs are actually getting turned off without the kernel's knowledge, but when I run that in the background, the problem doesn't ever manifest itself.
-- Nicholas Miell <nmiell@comcast.net>
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