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Kobboi
l33t
Joined: 29 Jul 2005
Posts: 673
Location: Belgium
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 Posted: Thu Jun 05, 2008 7:41 pm Post subject: segfaults appearing recently, on several machines |
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I have a couple of Gentoo boxes running, both at home and at work. Recently I have been seeing segfault messages in the dmesg section, although I'm not always aware of the application crashing. For example
| Code: | typesconfig[18976]: segfault at 00000000 eip 08048bc0 esp bfcf55a0 error 4
typesconfig[18977]: segfault at 00000000 eip 08048b7b esp bfcf55a0 error 6
typesconfig[23922]: segfault at 00000000 eip 08048bc0 esp bffc1840 error 4
typesconfig[23923]: segfault at 00000000 eip 08048b7b esp bffc1840 error 6
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or a similar one at work about gnome-screensaver. How can I find out what is going on? |
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albright
Advocate
Joined: 16 Nov 2003
Posts: 2588
Location: Near Toronto
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| Posted: Wed Jul 23, 2008 12:11 pm Post subject: |
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I get these too - did you ever figure out what was going on?
_________________
.... there is nothing - absolutely nothing - half so much worth
doing as simply messing about with Linux ...
(apologies to Kenneth Graeme) |
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Kobboi
l33t
Joined: 29 Jul 2005
Posts: 673
Location: Belgium
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| Posted: Wed Jul 23, 2008 10:22 pm Post subject: |
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No and the segfaults are not limited to typesconfig either  |
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krinn
Watchman
Joined: 02 May 2003
Posts: 7470
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| Posted: Wed Jul 23, 2008 10:54 pm Post subject: |
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bork toolchain will give you that.
build a clean toolchain & emerge -e |
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ali3nx
l33t
Joined: 21 Sep 2003
Posts: 732
Location: Winnipeg, Canada
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| Posted: Thu Jul 24, 2008 12:33 am Post subject: |
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| wild and nutty cflags or ldflags will also eventually cause segfaults. overclocking is another major contributor. linux systems are far more sensitive to overclocked hardware where reliability is a concern. |
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Kobboi
l33t
Joined: 29 Jul 2005
Posts: 673
Location: Belgium
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| Posted: Thu Jul 24, 2008 7:21 am Post subject: |
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| Code: |
CFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer"
CXXFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer"
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I think this isn't too exotic, or is it? |
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ali3nx
l33t
Joined: 21 Sep 2003
Posts: 732
Location: Winnipeg, Canada
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| Posted: Thu Jul 24, 2008 7:27 am Post subject: |
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| Kobboi wrote: | | Code: |
CFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer"
CXXFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer"
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I think this isn't too exotic, or is it? |
looks fine for a pentium4. any chance your power supply is givin it up? |
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Kobboi
l33t
Joined: 29 Jul 2005
Posts: 673
Location: Belgium
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| Posted: Thu Jul 24, 2008 8:37 pm Post subject: |
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| Always a chance of course, but I have no other signs whatsoever of problems in that area. |
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jordanwb
l33t
Joined: 10 Jul 2008
Posts: 642
Location: Ottawa, Canada
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| Posted: Fri Jul 25, 2008 7:56 pm Post subject: |
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| It seems unlikely that the PSUs are failing in multiple computers. |
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Kobboi
l33t
Joined: 29 Jul 2005
Posts: 673
Location: Belgium
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| Posted: Sat Aug 16, 2008 7:14 pm Post subject: |
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| I again have typesconfig related segfaults, this time on a newly installed amd64 system starting from 2008.0. Is there something I'm doing wrong? Some weird kernel option maybe? |
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DirtyHairy
l33t
Joined: 03 Jul 2006
Posts: 608
Location: Würzburg, Deutschland
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| Posted: Sun Aug 17, 2008 11:18 am Post subject: |
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Well, I've no idea which package typesconfig belongs to, but maybe some version of the program is buggy and segfaults sometimes. There are quite some programs that segfault every now and then, and since a segfault usually is triggered by array overflows, pointers pointing into nirvana etc., it can seem to appear quite randomly and pop up all of a sudden if a portion of the program is changed that doesn't have any appearant connection to the code that segfaults. For example, from my current dmesg:
| Code: | | operapluginwrap[28443]: segfault at 19 ip b76831d6 sp b58dfd70 error 4 in libgobject-2.0.so.0.1600.3[b7674000+39000] |
which actually is a known problem of opera not playing along with flash overly well.
If you don't experience any other problems with your system, there's propably no need to get alarmed. |
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