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Message-ID: <0a0aa24a5b9db8797af16340a7c223bb@smtp.hushmail.com>
Date: Thu, 15 May 2014 00:17:47 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: c3 format broken w/ OMP on Solaris 11
Solar,
I see a problem on Sparc Solaris 11 w/ gcc 4.5.2 building the crypt(3)
format with OpenMP. I was testing Jumbo but this is a core problem.
The problem is this pragma:
#pragma omp parallel for default(none) private(index) shared(warned,
count, crypt_out, saved_key, saved_salt, stderr)
Compiler dies unless I change it do either
#pragma omp parallel for default(none) private(index) shared(warned,
count, crypt_out, saved_key, saved_salt, __iob)
...or just (That block is '#if __sun' and I'm not 100% sure __iob will
work on just *any* __sun?)
#pragma omp parallel for
However, after fixing that I still have some problems. First, it does
not actually seem to use OMP although it prints it does:
Warning: OpenMP is disabled; a non-OpenMP build may be faster
Benchmarking: crypt, generic crypt(3) DES [?/32]... DONE
Many salts: 864 c/s real, 872 c/s virtual
Only one salt: 872 c/s real, 872 c/s virtual
Will run 8 OpenMP threads
Benchmarking: crypt, generic crypt(3) DES [?/32]... (8xOMP) DONE
Many salts: 855 c/s real, 838 c/s virtual
Only one salt: 864 c/s real, 842 c/s virtual
Second, only seen in --test=0 (all formats) runs so far, it sometimes
just hangs after printing this:
Testing: crypt, generic crypt(3) DES [?/32]... (8xOMP)
It hangs forever with 0% CPU load. I don't actually care about this
(we're just doing Jumbo BE tests :) but now you have been notified.
BTW the man page on that machine does state that crypt() is MT safe.
magnum
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