Date: Fri, 16 Mar 2012 21:33:40 +0530 From: Dhiru Kholia <dhiru.kholia@...il.com> To: john-dev@...ts.openwall.com Subject: Re: SSH thread-safety On Fri, Mar 16, 2012 at 8:36 AM, Dhiru Kholia <dhiru.kholia@...il.com> wrote: > On Fri, Mar 16, 2012 at 5:16 AM, Solar Designer <solar@...nwall.com> 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? > > http://www.openssl.org/support/faq.html#PROG1 > http://linux.die.net/man/3/crypto_set_locking_callback I have implemented the callbacks required and segfaults are gone. Can you give the new code a shot? Thanks! -- Cheers, Dhiru
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