[Fedora] Re: list_head debugging.

Ashley M. Kirchner ashley at pcraft.com
Thu Jul 20 19:32:53 UTC 2006


Linus Torvalds wrote:
> If you are comfortable trying totally untested kernel patches (well, I did 
> end up booting this patch just to see that it works at all - but I 
> obviously wasn't able to check whether it will actually output anything 
> valid), here's a patch for you to try. 
>
> It _may_ give more information about exactly which wait-queue (or rather, 
> what the poll function that was related to that wait-queue) seems to be 
> corrupted. 
>
> 		Linus
>
> ---
> diff --git a/fs/select.c b/fs/select.c
> index a8109ba..8cd6dc3 100644

    Okay folks, I'm reviving this thread [1].  Since Linus' patch [2] 
(thanks to Dave Jones for the RPM [3]) the system is still crashing.  
The only reason I haven't revived this sooner is because I've moved all 
but one service off of that machine so that now if it crashes, it's not 
as critical (it only takes down one of three DNS servers.)  However, I'd 
still like to get the problem resolved somehow.

    Unfortunately I'm noticing that now when it crashes, there's 
absolutely nothing recorded anywhere.  Before the patch I could capture 
stuff in /var/log/messages.  Now, nothing.  It just dies.

    So I thought, before I write this off and reformat the drive and 
install FC5, is there anything else that I can do to try and track the 
problem down.  Could it potentially be hardware, and if so what?

    Any help?

    [1] https://www.redhat.com/archives/fedora-list/2006-May/msg04779.html
    [2] Funny, none of Linus' messages are in the archives...
    [3] https://www.redhat.com/archives/fedora-list/2006-May/msg05402.html

-- 
W | It's not a bug - it's an undocumented feature.
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  Ashley M. Kirchner <mailto:ashley at pcraft.com>   .   303.442.6410 x130
  IT Director / SysAdmin / Websmith             .     800.441.3873 x130
  Photo Craft Laboratories, Inc.            .     3550 Arapahoe Ave. #6
  http://www.pcraft.com ..... .  .    .       Boulder, CO 80303, U.S.A.





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