[openib-general] Processes not exiting on SVN7946

[Arlin Davis]

Woodruff, Robert J wrote:

> It appears that processes are not exiting cleanly on SVN7946 trunk
> backported to 2.6.9-34 EL.
>
> They seem to be stuck in a state of "DL" and I cannot even attach to them
> wil gdb or kill them with a kill -9.
>
> [root at iclust-1 core]# ps -uax | grep IMB
> woody     4087  0.0  0.0 58500 3172 pts/3    T    14:45   0:00 gdb 
> ./IMB-MPI1 -p 4067
> woody     4067  2.3  0.0 33108 2708 ?        DL   14:44   0:12 ./IMB-MPI1
> woody     4109  3.1  0.0 40148 2572 ?        DL   14:47   0:12 ./IMB-MPI1
> root      4156  0.0  0.0 51080  732 pts/3    S+   14:53   0:00 grep IMB
>
> The last code I pulled SVN7843 did not have this problem.
>
> Any ideas on what might be causing this ?
>

I see the same thing running the uDAPL test (dapl/test/dtest). I am 
running a 2.6.16 kernel and svn8805 and it appears to be deadlocked 
(uninterruptible sleep) in the ibv_destroy_cq() call.  This all worked 
fine on svn7843; my last update on these systems.

-arlin

> woody
>
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