Re: generic rwsem [Re: Alpha "process table hang"]

[Bob McElrath <mcelrath+linux@draal.physics.wisc.edu>]

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Andrea Arcangeli [andrea@suse.de] wrote:
>
> So please try to reproduce the hang with 2.4.4pre3 with those two
> patches applied:
> 
> 	ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.4pre3aa3/00_alpha-numa-3
> 	ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.4pre3aa3/00_rwsem-generic-1
> 
> All alpha users should run with at least the above two patches applied
> to compile their tree and to make sure to have rock solid rwsemaphores.

Excellent!  I'll give it a try.

Note that I recently saw the X hang with the 2.2.19 kernel, but I still
haven't seen the process-table-hang with 2.2.19 (about 4 days running
with 2.2.19).  It is *far* easier to get the X hang in 2.4 than 2.2.
(minutes for 2.4, days for 2.2)  Also note that this is not an SMP
machine (single processor 21164a, LX164 mobo).

But I'll apply your patch tonight and let you know the results.

Cheers,
-- Bob

Bob McElrath (rsmcelrath@students.wisc.edu) 
Univ. of Wisconsin at Madison, Department of Physics

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