[Bug 540338] New: Gnome LiveCD: process "exe" gets 97/100% continous cpu usage
http://bugzilla.novell.com/show_bug.cgi?id=540338 Summary: Gnome LiveCD: process "exe" gets 97/100% continous cpu usage Classification: openSUSE Product: openSUSE 11.2 Version: Milestone 7 Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Live Medium AssignedTo: coolo@novell.com ReportedBy: noelamac@gmail.com QAContact: qa@suse.de Found By: --- Not sure if this an expected behavior. While running Gnome LiveCD (64 bits) I can see a process called "exe" owned by "nobody" which gets a 100% continuosly cpu usage (using "top" and "gnome system monitor"). -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User coolo@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c1 Stephan Kulow <coolo@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO Info Provider| |noelamac@gmail.com --- Comment #1 from Stephan Kulow <coolo@novell.com> 2009-09-18 13:23:30 MDT --- please provide ps auxwww output, perhaps this is given away more. You're running it live, not installed - correct? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User noelamac@gmail.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c2 --- Comment #2 from Camaleon -- <noelamac@gmail.com> 2009-09-18 15:36:50 MDT --- I killed the process to avoid "frying" the cpu O:-) After restarting the LiveCD (yes, it's a pure LiveCD, no installation performed), I cannot see the process again. Not sure what was triggering that "exe" event, so please, keep this bug open because I will be actively monitoring this issue on the weekend by keeping the machine on all the time. I wish I could hibernate the LiveCD so I would not have to shutdown the computer, but I guess the LiveCD is not configured to handle that, right? :-? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User noelamac@gmail.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c3 Camaleon -- <noelamac@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW Info Provider|noelamac@gmail.com | --- Comment #3 from Camaleon -- <noelamac@gmail.com> 2009-09-19 16:21:59 MDT --- Created an attachment (id=318960) --> (http://bugzilla.novell.com/attachment.cgi?id=318960) "Exe" process Print screen of the process. It seems to be "nscd", while this time is not taking the whole CPU cycles. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 Stephan Kulow <coolo@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |coolo@novell.com AssignedTo|coolo@novell.com |pbaudis@novell.com -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User noelamac@gmail.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c4 --- Comment #4 from Camaleon -- <noelamac@gmail.com> 2009-09-20 12:47:52 MDT --- Additional comment: I left the computer turned on for all the weekend (just suspending the machine at night) but the high CPU usage could not be reproduced at all in these 2 days. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User pbaudis@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c5 Petr Baudis <pbaudis@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P3 - Medium Status|NEW |ASSIGNED Component|Live Medium |Basesystem Summary|Gnome LiveCD: process "exe" |unscd accept()s on wrong |gets 97/100% continous cpu |fd, eating 100% CPU |usage | Severity|Normal |Major --- Comment #5 from Petr Baudis <pbaudis@novell.com> 2009-09-21 02:47:09 MDT --- I have already seen this once; unscd somehow starts accept()ing on wrong fd suddenly, accept() fails with EINVAL, unscd goes to a busy poll()-accept() loop. So far, there seems to be no way to reproduce this, and I didn't find anything in the code yet that could trigger this. :( -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User coolo@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c6 Stephan Kulow <coolo@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bwhiteley@novell.com --- Comment #6 from Stephan Kulow <coolo@novell.com> 2009-09-25 05:50:24 MDT --- *** Bug 541456 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=541456 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User coolo@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c7 Stephan Kulow <coolo@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |matz@novell.com --- Comment #7 from Stephan Kulow <coolo@novell.com> 2009-09-25 05:51:40 MDT --- should we go back to nscd? If unscd has similiar strange to fix bugs, I rather stay with one package for all :( -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User noelamac@gmail.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c8 --- Comment #8 from Camaleon -- <noelamac@gmail.com> 2009-09-26 18:21:42 CEST --- Created an attachment (id=320027) --> (http://bugzilla.novell.com/attachment.cgi?id=320027) Nscd in action eating 100% of cpu, this time showing it's real name -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User matz@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c9 --- Comment #9 from Michael Matz <matz@novell.com> 2009-09-28 04:15:50 MDT --- re comment #7: Nah, let's try harder to fix the bug instead. Just because there's the last bug ;) in unscd doesn't mean it's better to use nscd. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User pbaudis@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c10 Petr Baudis <pbaudis@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tbullock@comlore.com --- Comment #10 from Petr Baudis <pbaudis@novell.com> 2009-10-05 04:00:29 MDT --- *** Bug 540476 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=540476 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User matz@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c11 --- Comment #11 from Michael Matz <matz@novell.com> 2009-10-14 04:10:02 MDT --- One thing I notice in the strace of Bart on bug 541456 is that poll() returns with POLL_IN|POLL_HUP on the filedesc in question. That's a hangup on the socket, sent when the connection is completely closed. Of course accept() won't work on these. I haven't studied the sources yet, so I don't know if that socket ever is supposed to be closed or not. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 User matz@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=540338#c12 --- Comment #12 from Michael Matz <matz@novell.com> 2009-10-14 04:40:49 MDT --- Another thing to notice is (from the strace): poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}], 2, 259407) = 1 ([{fd=7, revents=POLLIN|POLLHUP}]) This tries to wait for something on fd 3 and 7. These are the two listener sockets that are created as first fds in the program, hence they should be fd 3 and 4. Which leads me to think that somehow the coalescing of closed fds that unscd is doing (moving later still active entries over the closed ones) somehow doesn't work or overwrites the second listener socket. The would correspond to the POLL_HUP, which can indeed be sent on the other client sockets (not the listeners though). -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=540338 http://bugzilla.novell.com/show_bug.cgi?id=540338#c13 Petr Baudis <pbaudis@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |WORKSFORME --- Comment #13 from Petr Baudis <pbaudis@novell.com> 2010-05-10 20:46:40 UTC --- I think we have not seen this ever appear again since that point on, and we are unable to reproduce this, so I'm closing it for the time being. Let's see if it starts happening to someone again at some point. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
participants (1)
-
bugzilla_noreply＠novell.com