[Gluster-devel] NetBSD hang in quota-anon-fd-nfs.t

Emmanuel Dreyfus manu at netbsd.org
Mon Jan 11 03:26:58 UTC 2016


Emmanuel Dreyfus <manu at netbsd.org> wrote:

> ps -axl shows the quota helper program is waiting on genput:
> UID  PID  PPID CPU PRI NI  VSZ  RSS WCHAN  STAT TTY      TIME COMMAND
>   0 9660 23707   0 124  0 3360 1080 genput D+   pts/2 0:00.01
> ./tests/basic/quota /mnt/nfs/0//0/1/2/3/4/5/6/7/8/9/new_file_2 256 4 
> 
> The process is stuck in kernel awaiting for a memory page to get
> unlocked. 

I reproduced the situation, and discovered the process is not really
hung. Tracing system calls in the quota procss shows that it does
complete write operations, thought ater a very long time. One write
system call that last 963s, for instance.

It does not hang, but it does not look sane either.

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu at netbsd.org


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