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Date: Wed, 7 Nov 2012 21:24:23 +0100
From: Lukas Odzioba <lukas.odzioba@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Split kernel for OpenCL WPA-PSK

2012/11/7 magnum <john.magnum@...hmail.com>:
> It segfaults during self-test. The debugger ends up within the amdocl drivers. I suspect it's yet another driver bug. But I have tried it with 12.8 too and it did not help.

Not good at all, same for 5850:
(gdb) run -test -fo=wpapsk-opencl
Starting program: /home/ukasz/tmp/JohnTheRipper_patche/run/john -test
-fo=wpapsk-opencl
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
OpenCL platform 0: AMD Accelerated Parallel Processing, 2 device(s).
Using device 0: Cypress
[New Thread 0x7ffff2594700 (LWP 5343)]
Compilation log: LOOP UNROLL: pragma unroll (line 419)
    Unrolled as requested!
LOOP UNROLL: pragma unroll (line 495)
    Unrolled as requested!
LOOP UNROLL: pragma unroll (line 434)
    Unrolled as requested!
LOOP UNROLL: pragma unroll (line 517)
    Unrolled as requested!
LOOP UNROLL: pragma unroll (line 511)
    Unrolled as requested!
LOOP UNROLL: pragma unroll (line 528)
    Unrolled as requested!

[Thread 0x7ffff2594700 (LWP 5343) exited]
[New Thread 0x7ffff1b74700 (LWP 5344)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff1b74700 (LWP 5344)]
0x00007ffff69d57d6 in __memmove_ssse3_back () from /lib64/libc.so.6

(gdb) backtrace
#0  0x00007ffff69d57d6 in __memmove_ssse3_back () from /lib64/libc.so.6
#1  0x00007ffff50f0734 in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#2  0x00007ffff50bbbfc in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#3  0x00007ffff50bd495 in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#4  0x00007ffff50f3c3d in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#5  0x00007ffff5092cc8 in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#6  0x00007ffff509396e in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#7  0x00007ffff509f7be in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#8  0x00007ffff50a680d in ?? () from /opt/AMDAPP/lib/x86_64/libamdocl64.so
#9  0x00007ffff6670eae in start_thread () from /lib64/libpthread.so.0
#10 0x00007ffff697afed in clone () from /lib64/libc.so.6


bash-4.2# dmesg | grep fglrx | grep "module loaded"
[    6.513929] [fglrx] module loaded - fglrx 8.98.2 [Jul 27 2012] with 1 minors

Lukas

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