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jody
l33t
Joined: 16 Oct 2007
Posts: 676
Location: Switzerland
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 Posted: Sun Jun 20, 2010 9:07 am Post subject: start-stop-daemon Segmentation fault |
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Hi
My previous problem with dbus caused by a corrupted configuration file (https://forums.gentoo.org/viewtopic-t-832636.html)
has advanced to a segmentation fault caused by the start-stop-daemon: | Code: | insect ~ # /etc/init.d/dbus start
* Caching service dependencies ... [ ok ]
* Starting D-BUS system messagebus ...
/lib/rcscripts/sh/rc-daemon.sh: line 231: 10326 Segmentation fault /sbin/start-stop-daemon '--start' '--pidfile' '/var/run/dbus.pid' '--exec' '/usr/bin/dbus-daemon' '--' '--system' |
The above call was made immediately after reemerging world (including sys-apps/dbus and sys-apps/baselayout)
Does anybody know what could cause this fault (maybe some corrupted file as well?)
Thnak You
Jody |
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BradN
Advocate
Joined: 19 Apr 2002
Posts: 2391
Location: Wisconsin (USA)
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| Posted: Mon Jun 21, 2010 12:44 am Post subject: |
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| I'm not sure of the exact command to start dbus manually, but it might be worthwhile to try running it with --nofork under strace. The final outputs before the segfault might tell you what file has a problem. |
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jody
l33t
Joined: 16 Oct 2007
Posts: 676
Location: Switzerland
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| Posted: Tue Jun 22, 2010 6:22 am Post subject: |
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Hi
I started dbus like this: | Code: | | strace /usr/bin/dbus-daemon --system --nofork |
and there was a segmentation fault at the end: | Code: | ... (many lines) ...
open("/usr/share/dbus-1/system-services/org.freedesktop.PolicyKit1.service", O_RDONLY) = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=93, ...}) = 0
read(5, "[D-BUS Service]\nName=org.freedes"..., 93) = 93
close(5) = 0
stat64("/usr/share/dbus-1/system-services/org.freedesktop.PolicyKit1.service", {st_mode=S_IFREG|0644, st_size=93, ...}) = 0
fstatfs(4, {f_type="EXT2_SUPER_MAGIC", f_bsize=4096, f_blocks=179765090, f_bfree=176411942, f_bavail=167280396, f_files=45662208, f_ffree=45240860, f_fsid={-1888290485, 437359898}, f_namelen=255, f_frsize=4096}) = 0
stat64("/usr/share/dbus-1/system-services/org.gnome.CPUFreqSelector.service", {st_mode=S_IFREG|0644, st_size=88, ...}) = 0
open("/usr/share/dbus-1/system-services/org.gnome.CPUFreqSelector.service", O_RDONLY) = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=88, ...}) = 0
read(5, "prefix=/usr\nexec_prefix=${prefix"..., 88) = 88
close(5) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Segmentation fault
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It strikes me that the crash follows immediately after manipulatinmg the file 'org.gnome.CPUFreqSelector.service',
whereas my original thread (see above) post was caused by a corrupted file 'org.gnome.CPUFreqSelector.conf'.
I tried to find our to wich package these CPUFreq files belong, but there was no result: | Code: | insect ~ # equery belongs /usr/share/dbus-1/system-services/org.gnome.CPUFreqSelector.service
[ Searching for file(s) /usr/share/dbus-1/system-services/org.gnome.CPUFreqSelector.service in *... ]
insect ~ # equery belongs org.gnome.CPUFreqSelector.service
[ Searching for file(s) org.gnome.CPUFreqSelector.service in *... ]
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Could this mean that i accidentally a package which is responsible for this CPUFreqSelector?
I my previous thread somebody said, CPUFreqSelector.conf was part of 'gnome applets'
but i remerged gnome-applets with no change in behaviour.
ANy ideas where i could go?
Thank You
Jody |
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BradN
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Joined: 19 Apr 2002
Posts: 2391
Location: Wisconsin (USA)
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| Posted: Tue Jun 22, 2010 9:11 pm Post subject: |
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Hmm, that's strange it doesn't belong to anything. You hadn't migrated /etc from an older installation or run any configuration utilities as root that may have put it there? Another possibility is that whatever package installed it is now removed (or a newer version that doesn't use that file) and that could potentially cause problems.
I guess if you don't need that particular feature you might just try moving the file somewhere else and see if it helps. |
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