linux-kernel - Re: [PATCH 1/2] lockdep, rwsem: provide down_write_nest

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Message-ID: <CA+icZUW_GdRdybS+-GJNXhzuyuzE3xdWC3AFZyD6pKS_JMKQ6A@mail.gmail.com>
Date:	Sat, 5 Jan 2013 12:08:25 +0100
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	linux-mm <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] lockdep, rwsem: provide down_write_nest_lock()

Hi Jiri,

I have tested your both patches (see [1] and [2])...

Patch #1: [PATCH 1/2] lockdep, rwsem: provide down_write_nest_lock()
Patch #2: [PATCH 2/2] mm: mmap: annotate vm_lock_anon_vma locking
properly for lockdep

...with "mmap10" testcase-script from Linux Test Project (LTP version
20120903) [3].

The mmap10-line I have seen in [4] and the result is attached.

$ cd /opt/ltp/testcases/bin/

$ sudo ./mmap10 -a -s -c 200 2>&1 | tee /tmp/mmap10-a-s-c-200.txt

I can't say if this satisfy you. If you have any other testcases,
please let me know.

Feel free to add for both patches:

     Tested-by: Sedat Dilek <sedat.dilek@...il.com>

Regards,
- Sedat -

[1] http://marc.info/?l=linux-kernel&m=135734611921611&w=2
[2] http://marc.info/?l=linux-kernel&m=135734616121633&w=2
[3] http://sourceforge.net/projects/ltp/files/LTP%20Source/
[4] http://marc.info/?l=linux-mm&m=135641033503993&w=2

P.S.: Just as a note this warning seen with the mmap10-line (see above):

[ QUOTE ]
WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING

The -c option is broken by desing. See:

http://www.mail-archive.com/ltp-list@lists.sourceforge.net/msg13418.html

In short don't use it in runtest files as the option will be removed.

WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
[ /QUOTE ]

View attachment "mmap10-a-s-c-200.txt" of type "text/plain" (103544 bytes)