Messages in this thread |  | | Date | Tue, 02 Apr 2013 15:53:01 -0400 | | From | Sasha Levin <> | | Subject | Re: ipc,sem: sysv semaphore scalability |
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On 04/02/2013 01:52 PM, Linus Torvalds wrote: > On Tue, Apr 2, 2013 at 9:08 AM, Sasha Levin <sasha.levin@oracle.com> wrote: >> >> By just playing with the 'msgsz' parameter with MSG_COPY set. > > Hmm. Looking closer, I suspect you're testing without commit > 88b9e456b164 ("ipc: don't allocate a copy larger than max"). That > should limit the size passed in to prepare_copy -> load_copy to > msg_ctlmax.
That commit has a revert in the -next trees, do we need a revert of the revert?
commit ff6577a3e714ccae02d4400e989762c19c37b0b3 Author: Andrew Morton <akpm@linux-foundation.org> Date: Wed Mar 27 10:24:02 2013 +1100
revert "ipc: don't allocate a copy larger than max"
Revert 88b9e456b164. Dave has confirmed that this was causing oopses during trinity testing.
Cc: Peter Hurley <peter@hurleysoftware.com> Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Reported-by: Dave Jones <davej@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Thanks, Sasha
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