http://bugzilla.novell.com/show_bug.cgi?id=541802 zhu rensheng changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rszhu@novell.com AssignedTo|bnc-team-screening@forge.pr |mt@novell.com |ovo.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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c2 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |WORKSFORME --- Comment #2 from Marius Tomaschewski 2010-01-15 11:33:52 UTC --- Above test was with syslog-ng-2.0.9-27.3.x86_64 on 11.1 (same results as with syslog-ng-2.0.9-29.1.x86_64 on 11.2), that is with the RPM released with 11.1 GA: http://download.opensuse.org/distribution/11.1/repo/oss/suse/x86_64/syslog-n... -- 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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c4 --- Comment #4 from Martin Vogt 2010-01-15 11:49:43 UTC --- Hello, I still can reproduce the bug: Swap: 1048568k total, 168k used, 1048400k free, 2796316k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23438 root 20 0 23204 924 612 S 100 0.0 1:53.00 syslog-ng Have you used a remote host which is on (ping) but has not remote syslog running. If I have only a dns entry put the machine is off I could reproduce it either. Martin PS: I dont think thich should be closed, please give it another try. root@pxe3[syslog-ng]>rpm -qa | grep syslog syslog-ng-2.0.9-27.22 -- 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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c6 --- Comment #6 from Martin Vogt 2010-01-15 12:35:32 UTC --- Hello, only to correct my spelling mistakes in the previous mail: - I can reproduce the bug if the remote machine is on (ping), but has no syslogd with remote logging capability running. - The bug is not reproducible if I only have a valid dns entry but the machine is off (no ping) And it takes around ~2 minutes before syslog-ng east up 100% Martin

...

If I have only a dns entry put the machine is off I could reproduce it either. Should be If I have only a dns entry _b_ut the machine is off I could_n't_ reproduce it either.

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http://bugzilla.novell.com/show_bug.cgi?id=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c8 --- Comment #8 from Marius Tomaschewski 2010-01-15 13:42:38 UTC --- OK, thanks! Now I was able to reproduce it by putting a "loghost" dummy IP to DNS instead of /etc/hosts and by playing with adding/removing the IP on the log server interface and starting/stopping the daemon there (don't know where exactly the difference to earlier test is, but...) poll([{fd=5, events=0}, {fd=6, events=0}, {fd=3, events=POLLIN}, {fd=4, events=POLLIN}], 4, 1086000) = 1 ([{fd=5, revents=POLLERR}]) poll([{fd=5, events=0}, {fd=6, events=0}, {fd=3, events=POLLIN}, {fd=4, events=POLLIN}], 4, 1086000) = 1 ([{fd=5, revents=POLLERR}]) poll([{fd=5, events=0}, {fd=6, events=0}, {fd=3, events=POLLIN}, {fd=4, events=POLLIN}], 4, 1086000) = 1 ([{fd=5, revents=POLLERR}]) poll([{fd=5, events=0}, {fd=6, events=0}, {fd=3, events=POLLIN}, {fd=4, events=POLLIN}], 4, 1086000) = 1 ([{fd=5, revents=POLLERR}])^C Process 21649 detached And I found also fixes in the upstream git that looks like they would address exactly this problem: commit 8295be1303fab60405fe50cbcfbc5b0865fd34a4 Author: Balazs Scheidler Date: Mon Oct 5 12:33:07 2009 +0200 [logwriter] fixed a 100% CPU usage if a udp destination is down Sometimes when a UDP destination is down we get POLLERR from poll. This was not always propagated to the dispatch handler by GLib if pollfd.events was 0. This patch makes sure that at least G_IO_ERR is present in the "events" field in logreader/logwriter. Reported-By: Sandor Geller [...] commit 80d6f2147b7eaee118ca0573eb9e354170aa4362 Author: Balazs Scheidler Date: Thu Nov 6 11:53:32 2008 +0100 fixed 100% CPU spinning on HP-UX upon a connection break As I see the problem seems to be caused by the fact that HP-UX returns POLLERR only without the other bits (e.g. POLLHUP) syslog-ng would handle this gracefully if either the other bits would be set, or there'd be some pending messages to send, in which case a normal write() error would occur. I'll prepare a package with this fix and provide an Url to a test RPM soon. -- 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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c10 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |NEEDINFO Info Provider| |vogt@itwm.fraunhofer.de --- Comment #10 from Marius Tomaschewski 2010-01-15 15:29:48 UTC --- OK, a test package with applied patches will appear at: http://download.opensuse.org/repositories/home:/mtomaschewski:/branches:/ope... when it is built. Would you test it please? Please verify, that the "rpm -qp --changelog syslog-ng*.rpm" changelog entry is visible: Fri Jan 15 15:31:16 CET 2010 - mt@suse.de - Applied POLLERR handling fixes for logreader/logwriter causing 100% CPU usage e.g. when a UDP destination is down (bnc#541802). -- 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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c12 --- Comment #12 from Marius Tomaschewski 2010-01-25 20:32:27 UTC --- OK, same to me, thanks!! submitting the package to SLE-11:Update:Test. -- 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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c14 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:planned:update |maint:running:30492 --- Comment #14 from Swamp Workflow Management 2010-01-26 11:05:11 UTC --- The SWAMPID for this issue is 30492. Please submit the patch and patchinfo file using this ID. (https://swamp.suse.de/webswamp/wf/30492) -- 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=541802 http://bugzilla.novell.com/show_bug.cgi?id=541802#c18 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:running:30492 |maint:running:30492 |maint:released:sle11:30560 |maint:released:11.1:30566 | |maint:released:11.2:30566 --- Comment #18 from Swamp Workflow Management 2010-03-23 14:13:36 UTC --- Update released for: syslog-ng, syslog-ng-debuginfo, syslog-ng-debugsource Products: openSUSE 11.1 (debug, i586, ppc, x86_64) openSUSE 11.2 (debug, i586, x86_64) -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=541802 https://bugzilla.novell.com/show_bug.cgi?id=541802#c19 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jreuter@novell.com --- Comment #19 from Marius Tomaschewski 2010-09-22 14:01:47 UTC --- *** Bug 587508 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=587508 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.