Re: [patch] voluntary-preempt-2.6.8-rc2-L2 PS2 keyboard gone south

[Felipe Alfaro Solana]

On Sat, 2004-07-31 at 20:46 -0400, Lee Revell wrote:

> > OK, OK :-) I've been running 2.6.8-rc2-mm1-M5 with ACPI but without APIC
> > for more than ten minutes), compiling kernels, sending mails with
> > Evolution and it hasn't locked up yet. Crossfingers. Should we report
> > this to Ingo and Andrew?
> > 
> > Anyways, I'll keep on running this puppy to see if this behavior is
> > consistent.
> > 
> > # grep . /proc/irq/*/*/threaded
> > /proc/irq/11/eth0/threaded:1
> > /proc/irq/12/Intel 82801BA-ICH2/threaded:1
> > /proc/irq/14/ide0/threaded:1
> > /proc/irq/15/ide1/threaded:1
> > /proc/irq/1/i8042/threaded:1
> > /proc/irq/5/uhci_hcd/threaded:1
> > /proc/irq/8/rtc/threaded:1
> > /proc/irq/9/acpi/threaded:1
> > /proc/irq/9/uhci_hcd/threaded:!
> > 
> > # grep . /proc/sys/kernel/*_preemption
> > /proc/sys/kernel/voluntary_preemption:3
> > /proc/sys/kernel/preemption:1
> 
> The next thing I was going to suggest was the software RAID.  You appear
> to have a RAID 0 or 1 with one disk on irq14 and one on irq15.  I am not
> sure how interrupts are handled by Linux IDE RAID, but it seems like
> this would be tricky.  I bet the threading is screwing up the
> synchronization between the devices, and you end up with one waiting
> forever for the other - the possibilities for lockup are endless.

No, I'm not using any kind of RAID (eiher HW or SW) at all. Simply, two
identical, independent 120GB drives that only have one thing in common:
they are attached to the same IDE channel (the primary IDE channel). The
CD/RW and DVD are attached to the secondary IDE channel.

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