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Date: Fri, 16 Mar 2012 21:33:40 +0530
From: Dhiru Kholia <>
Subject: Re: SSH thread-safety

On Fri, Mar 16, 2012 at 8:36 AM, Dhiru Kholia <> wrote:
> On Fri, Mar 16, 2012 at 5:16 AM, Solar Designer <> wrote:
>> It was reported to me off-list that the "SSH" format in 1.7.9-jumbo-5
>> crashes on self-test on a 64-way machine running RHEL 6.2 on x86-64.
>> I managed to reproduce similar crashes on an 8-core machine by
>> increasing OMP_NUM_THREADS:
>> My guess is that the OpenSSL functions we're calling are still not
>> entirely thread-safe even in these recent versions of OpenSSL.  We could
>> want to look into this and maybe end up submitting a patch to OpenSSL.
> Will using crypto_set_locking_callback function solve these problems?

I have implemented the callbacks required and segfaults are gone. Can
you give the new code a shot? Thanks!


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