Hello all, Zope 2.6.4 has got stuck several times on my server. I have Debian sarge with the zope 2.6.4-1 package and python 2.2.3-7 (I know Zope 2.6 should use python2.1, but the debian package uses 2.2). I don't use ZEO. The problems started recently but I cannot pin down any specific event that triggered it. It may be related to upgrading zope from 2.6.2, or a Plone upgrade (I now have 2.0RC6, used to have RC3), or a kernel upgrade. The machine is a 2-processor Xeon currently running a SMP kernel (kernel-image-2.4.25-1-686-smp). Zope runs with the default 4 threads. Zope is running behind Apache. The symptom is that zope stops responding to requests, so the requests just hang until timeout. The processes are running, but a kill -TERM won't kill them. kill -9 helps. I haven't yet been able to repeat this in debug mode because the event is fairly rare. Also I haven't debugged the locked up processes with gdb, but will do so the next time it happens following instructions I've seen on this list. However, if you have any advice on how to further investigate this problem, I'd love to hear it. Below are some excerpts from Z2-detailed.log that show the sequence of events leading to lockup. It seems that two requests come in at the same time, and a crash happens in the middle of processing. I'm grateful for any help you can provide, -Osma Z2-detailed.log.1:A 190481452 2004-03-16T12:40:24 200 7607 Z2-detailed.log.1:E 190481452 2004-03-16T12:40:24 Z2-detailed.log.1:B 190559468 2004-03-16T12:40:24 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//tintr/ploneIEFixes.css Z2-detailed.log.1:I 190559468 2004-03-16T12:40:24 0 Z2-detailed.log.1:A 190559468 2004-03-16T12:40:24 200 1702 Z2-detailed.log.1:E 190559468 2004-03-16T12:40:24 Z2-detailed.log.1:B 181840020 2004-03-16T12:40:26 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//lpl/uutiset Z2-detailed.log.1:I 181840020 2004-03-16T12:40:26 0 Z2-detailed.log.1:B 190159428 2004-03-16T12:40:26 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//tintr/asukkaan_opas Z2-detailed.log.1:I 190159428 2004-03-16T12:40:26 0 Z2-detailed.log.1:U 000000000 2004-03-16T12:40:27 System startup Z2-detailed.log.1:A 204515844 2004-03-16T15:00:20 200 1702 Z2-detailed.log.1:E 204515844 2004-03-16T15:00:20 Z2-detailed.log.1:B 173323884 2004-03-16T15:00:23 POST /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot// Z2-detailed.log.1:I 173323884 2004-03-16T15:00:23 312 Z2-detailed.log.1:A 173323884 2004-03-16T15:00:23 200 718 Z2-detailed.log.1:E 173323884 2004-03-16T15:00:23 Z2-detailed.log.1:B 207153412 2004-03-16T15:00:23 POST /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//aks/foorumi1/toijala/forum_add_topic_form Z2-detailed.log.1:I 207153412 2004-03-16T15:00:23 1492 Z2-detailed.log.1:B 207618796 2004-03-16T15:00:24 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//tintr Z2-detailed.log.1:I 207618796 2004-03-16T15:00:24 0 Z2-detailed.log.1:U 000000000 2004-03-16T15:00:24 System startup Z2-detailed.log.1:B 184582692 2004-03-17T11:31:50 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//lpl/navtree-item-active.gif Z2-detailed.log.1:I 184582692 2004-03-17T11:31:50 0 Z2-detailed.log.1:A 184582692 2004-03-17T11:31:50 500 1749 Z2-detailed.log.1:E 184582692 2004-03-17T11:31:50 Z2-detailed.log.1:B 186258404 2004-03-17T11:31:50 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//lpl/bg_footer.gif Z2-detailed.log.1:I 186258404 2004-03-17T11:31:50 0 Z2-detailed.log.1:A 186258404 2004-03-17T11:31:50 500 1749 Z2-detailed.log.1:E 186258404 2004-03-17T11:31:50 Z2-detailed.log.1:A 185418812 2004-03-17T11:31:50 500 709 Z2-detailed.log.1:E 185418812 2004-03-17T11:31:50 Z2-detailed.log.1:U 000000000 2004-03-17T11:31:50 System startup Z2-detailed.log.1:A 174372980 2004-03-20T18:03:58 304 316 Z2-detailed.log.1:E 174372980 2004-03-20T18:03:58 Z2-detailed.log.1:B 174079364 2004-03-20T18:04:03 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//tintr Z2-detailed.log.1:I 174079364 2004-03-20T18:04:03 0 Z2-detailed.log.1:B 175770628 2004-03-20T18:04:03 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//tintr/asukkaan_opas Z2-detailed.log.1:I 175770628 2004-03-20T18:04:03 0 Z2-detailed.log.1:A 174079364 2004-03-20T18:04:03 200 24993 Z2-detailed.log.1:E 174079364 2004-03-20T18:04:03 Z2-detailed.log.1:B 176679788 2004-03-20T18:04:03 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//tintr/asukkaan_opas Z2-detailed.log.1:I 176679788 2004-03-20T18:04:03 0 Z2-detailed.log.1:U 000000000 2004-03-20T18:04:04 System startup Z2-detailed.log.2.gz:A 243458436 2004-03-11T17:29:34 200 1700 Z2-detailed.log.2.gz:E 243458436 2004-03-11T17:29:34 Z2-detailed.log.2.gz:B 210607836 2004-03-11T17:29:34 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//nkst/plone_javascripts.js Z2-detailed.log.2.gz:I 210607836 2004-03-11T17:29:34 0 Z2-detailed.log.2.gz:A 210607836 2004-03-11T17:29:34 304 316 Z2-detailed.log.2.gz:E 210607836 2004-03-11T17:29:34 Z2-detailed.log.2.gz:B 243686164 2004-03-11T17:29:36 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//nkst/tarjouspyynto Z2-detailed.log.2.gz:I 243686164 2004-03-11T17:29:36 0 Z2-detailed.log.2.gz:B 243745428 2004-03-11T17:29:36 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//nkst/toimi_nain/paatos/paatos_kaikki Z2-detailed.log.2.gz:I 243745428 2004-03-11T17:29:36 0 Z2-detailed.log.2.gz:U 000000000 2004-03-11T17:29:36 System startup Z2-detailed.log.2.gz:B 181253292 2004-03-12T10:21:24 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//aks/document_icon.gif Z2-detailed.log.2.gz:I 181253292 2004-03-12T10:21:24 0 Z2-detailed.log.2.gz:A 181253292 2004-03-12T10:21:24 304 299 Z2-detailed.log.2.gz:E 181253292 2004-03-12T10:21:24 Z2-detailed.log.2.gz:B 180156052 2004-03-12T10:21:24 GET /VirtualHostBase/http/prm.mbc.fi:80/prmmedia/VirtualHostRoot//aks/arkisto/bar_1_10.gif Z2-detailed.log.2.gz:I 180156052 2004-03-12T10:21:24 0 Z2-detailed.log.2.gz:A 180156052 2004-03-12T10:21:24 304 298 Z2-detailed.log.2.gz:E 180156052 2004-03-12T10:21:24 Z2-detailed.log.2.gz:A 178613132 2004-03-12T10:21:24 500 709 Z2-detailed.log.2.gz:E 178613132 2004-03-12T10:21:24 Z2-detailed.log.2.gz:U 000000000 2004-03-12T10:21:25 System startup -- *** Osma Suominen *** ozone@iki.fi *** http://www.iki.fi/ozone/ ***