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2020-12-04, 12:06
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#1 |
"David Barina"
Jul 2016
Brno
23·5 Posts |
mprime crashed
I just encountered the following behavior:
[Work thread Dec 4 12:51] Iteration: 102190000 / 109258157 [93.53%], ms/iter: 5.847, ETA: 11:28:49 [Work thread Dec 4 12:51] Hardware errors have occurred during the test! [Work thread Dec 4 12:51] 1 Gerbicz/double-check error. [Work thread Dec 4 12:51] Confidence in final result is excellent. Neoprávněný přístup do paměti (SIGSEGV) and the dmesg tells: [92055.665252] traps: mprime[12021] general protection fault ip:b8ec18 sp:7fcb7be36d20 error:0 [92055.665260] traps: mprime[12024] general protection fault ip:b8ec18 sp:7fcb87e4ed20 error:0 [92055.665265] in mprime[400000+229a000] [92055.665265] in mprime[400000+229a000] [92055.665299] traps: mprime[12023] general protection fault ip:b8ec18 sp:7fcb8864fd20 error:0 There seems to be a bug in the mprime. |
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2020-12-04, 17:20
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#2 |
"Curtis"
Feb 2005
Riverside, CA
22×33×72 Posts |
When you say "bug in mprime", you mean "problem with my hardware."
That's why the message tells you "hardware error." Most common is a buildup of dust in your case, leading to temperatures high enough to cause an occasional miscalculation. Faulty memory is also possible, but a bit less likely than a heat problem. |
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2020-12-04, 17:31
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#3 |
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"David Barina"
Jul 2016
Brno
23·5 Posts |
I have no objection to hardware errors. My problem is the SIGSEGV that I get after 90% of the test.
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2020-12-04, 17:41
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#4 |
"Oliver"
Sep 2017
Porta Westfalica, DE
17308 Posts |
Is the error reproducible and occurs always on the same iteration?
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2020-12-04, 18:33
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#5 |
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"David Barina"
Jul 2016
Brno
23×5 Posts |
I tried it several times, and it always crashed around 92 or 93%. No crash below 90 %.
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2020-12-04, 20:07
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#6 |
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P90 years forever!
Aug 2002
Yeehaw, FL
73×23 Posts |
Try running a torture test.
Or try reducing the memory speed or overvolt it slightly. |
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2020-12-05, 16:40
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#7 |
Sep 2009
91F16 Posts |
Exactly which version of mprime are you running? Where did you get it from? And output from uname -a and cat /etc/os-release to say what Linux distro and level you have might also be useful.
Chris |
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2020-12-05, 16:50
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#8 |
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"David Barina"
Jul 2016
Brno
23×5 Posts |
mprime version 30.3b6.
uname -a gives Linux dabler 5.4.60-gentoo-9 #1 SMP Thu Aug 27 12:07:40 CEST 2020 x86_64 AMD Ryzen Threadripper 2990WX 32-Core Processor AuthenticAMD GNU/Linux and cat /etc/os-release gives NAME=Gentoo ID=gentoo PRETTY_NAME="Gentoo/Linux" ANSI_COLOR="1;32" HOME_URL="https://www.gentoo.org/" SUPPORT_URL="https://www.gentoo.org/support/" BUG_REPORT_URL="https://bugs.gentoo.org/" |
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2020-12-06, 08:46
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#9 | |
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Undefined
"The unspeakable one"
Jun 2006
My evil lair
193E16 Posts |
Quote:
So, fix you hardware first before doing anything else. |
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2020-12-06, 16:36
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#10 |
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"David Barina"
Jul 2016
Brno
23·5 Posts |
I managed to get over the magic limit of 92% -- 93% and complete the test. And the result seems to be correct: https://www.mersenne.org/report_expo...9258157&full=1
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