Re: [PATCH v4 00/27] add block layout driver to pnfs client

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Trond Myklebust wrote:

  Any idea which file that thread is deleting, and why that might be
  hanging?

The test is a copy of the part of the mount command that writes /etc/mtab.
So it's doing some sequence of link, write, flock.  It does this thousands
of times, much of it in parallel.  I'll get a trace of a single instance of
this so we can see what the actual syscalls are.  I'll also see about
turning on the mutex debug.  Give me a couple of hours.

If you want to look at the source code for the test, clone this:
git://oss.sgi.com/xfs/cmds/xfstests

and it's in src/t_mtab.c.  It's driven by the "089" script.
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