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SubjectRe: Blocked processes <=> Elevator starvation?
On Fri, 27 Oct 2000, Rui Sousa wrote:

> I finally had time to give this a better look. It now seems the
> problem is in the VM system.

*sigh*

> schedule()
> ___wait_on_page()
> do_generic_file_read()
> generic_file_read()
> sys_read()
> system_call()
>
> So it seems the process is either in a loop in ___wait_on_page()
> racing for the PageLock or it never wakes-up... (I guess I could
> add a printk to check which)

It is spinning in ___wait_on_page() because the page never
becomes available, because the IO doesn't get scheduled to
disk in time.

This appears to be an elevator problem, not a VM problem.

regards,

Rik
--
"What you're running that piece of shit Gnome?!?!"
-- Miguel de Icaza, UKUUG 2000

http://www.conectiva.com/ http://www.surriel.com/

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