lkml.org 
[lkml]   [2001]   [Apr]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
On Thu, Apr 26, 2001 at 12:38:02AM -0500, Bob McElrath wrote:
> When I posted this bug originally, you came right out and said it was
> probably the rwsemaphores. I really have no idea how the rwsemaphores

You were talking about the ps table hang when I told you about the rwsem
races. I had the same trouble on my alpha and I reproduced the races
trivially by lanucing:

make MAKE='make -j2' -j2 &

while :; do ps xa ; sleep 1 ; done

After a few seconds ps deadlocked. Try that on the old asm semaphores.

It was 100% reproducible, and after I rewrote the rwsemaphores the
deadlock gone away completly.

Your X hanging in R state is completly unrelated to the rwsem ps table
hang problem as far I can tell.

> I'm running a debug X build at this point, and have identified at least

If you can reproduce without starting X I will be interested in fixing
the hang. Maybe you have a graphics card with a fb driver that doesn't
need VESA that maybe works on the alpha, then you could run X without
privilegies. (btw, in theory we could make the VESA thing working as
well using the x86 emulator in SRM but nobody attempted to implement
that yet)

> instead of gcc...then figured what the hell) The rest were with egcs
> 1.1.2. I'll use egcs 1.1.2 in the future.

good.

Andrea
-
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/

\
 
 \ /
  Last update: 2005-03-22 12:52    [W:0.040 / U:1.320 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site