48908 2010-11-03 05:49:05 -0700 crash in px_proxy_factory_get_proxies 2011-01-10 06:22:12 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) PC Linux RESOLVED INVALID https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/660455 P1 Blocker --- 0 brian webkit-unassigned a9016009 kevin.campbell oldest_to_newest 303989 0 brian 2010-11-03 05:49:05 -0700 Per the downstream bug report at Ubuntu's Launchpad (see URL: tag for link to downstream bug report) webkit is crashing in the proxy PAC parser: #0 __strcmp_ia32 () at ../sysdeps/i386/i686/multiarch/../strcmp.S:39 #1 0x04c2f252 in _run (self=0x98e5788, pac=0x983f2f0, url=0x990e988) at pacrunner_webkit.c:197 #2 0x00dafb52 in px_proxy_factory_get_proxies (self=0x984ee80, url=0x98e82d8 "http://weather.noaa.gov/cgi-bin/mgetmetar.pl?cccc=CYGK") at proxy.c:401 #3 0x00a9fdb2 in ?? () from /usr/lib/libsoup-gnome-2.4.so.1 #4 0x00aa0199 in ?? () from /usr/lib/libsoup-gnome-2.4.so.1 #5 0x007633d4 in g_thread_pool_thread_proxy (data=0x9854df8) at /build/buildd/glib2.0-2.26.0/glib/gthreadpool.c:319 #6 0x0076148f in g_thread_create_proxy (data=0x9906bb0) at /build/buildd/glib2.0-2.26.0/glib/gthread.c:1897 #7 0x00e39cc9 in start_thread (arg=0xb2fbeb70) at pthread_create.c:304 #8 0x009d56ae in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 312022 1 a9016009 2010-11-20 18:29:28 -0800 The trace is missing libsoup symbols. 312121 2 brian 2010-11-21 09:27:22 -0800 (In reply to comment #1) > The trace is missing libsoup symbols. Indeed, but seriously, is it really unclear about what is failing in px_proxy_factory_get_proxies() without the libsoup symbols? It's not like the call to px_proxy_factory_get_proxies() is all that complicated. In any case, I have installed the libsoup debug symbols. It shouldn't take very long to get another crash (it happens dozens of times a day) and get another stack trace for you. 312198 3 brian 2010-11-21 18:54:27 -0800 So here's the stack trace with libsoup symbols: #0 __strcmp_ia32 () at ../sysdeps/i386/i686/multiarch/../strcmp.S:39 #1 0x00ed5252 in _run (self=0x933e7e0, pac=0x933e7f0, url=0x9424fd8) at pacrunner_webkit.c:197 #2 0x00c36b52 in px_proxy_factory_get_proxies (self=0x9314340, url=0x9488838 "http://weather.noaa.gov/mgetmetar.php?cccc=CYYZ") at proxy.c:401 #3 0x00a9cdb2 in get_proxy_for_uri_via_libproxy ( proxy_uri_resolver=0x9318650, uri=0x93d4240, cancellable=0x9447d40, proxy_uri=0x945ab08) at soup-proxy-resolver-gnome.c:453 #4 get_proxy_uri_sync (proxy_uri_resolver=0x9318650, uri=0x93d4240, cancellable=0x9447d40, proxy_uri=0x945ab08) at soup-proxy-resolver-gnome.c:570 #5 0x00a9d199 in libproxy_threadpool_func (user_data=0x945ab00, thread_data=0x0) at soup-proxy-resolver-gnome.c:525 #6 0x002e13d4 in g_thread_pool_thread_proxy (data=0x931a1a8) at /build/buildd/glib2.0-2.26.0/glib/gthreadpool.c:319 #7 0x002df48f in g_thread_create_proxy (data=0x939fff8) at /build/buildd/glib2.0-2.26.0/glib/gthread.c:1897 #8 0x0047acc9 in start_thread (arg=0xb4c75b70) at pthread_create.c:304 #9 0x0093f69e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 And what I hope is some useful data: (gdb) frame 2 #2 0x00c36b52 in px_proxy_factory_get_proxies (self=0x9314340, url=0x9488838 "http://weather.noaa.gov/mgetmetar.php?cccc=CYYZ") at proxy.c:401 401 proxy.c: No such file or directory. in proxy.c (gdb) print self $1 = (pxProxyFactory *) 0x9314340 (gdb) print *self $2 = {mutex = {__data = {__lock = 1, __count = 0, __owner = 10518, __kind = 0, __nusers = 1, {__spins = 0, __list = {__next = 0x0}}}, __size = "\001\000\000\000\000\000\000\000\026)\000\000\000\000\000\000\001\000\000\000\000\000\000", __align = 1}, mm = 0x931acb8, pac = 0x933e7f0, wpad = false} (gdb) print *self->pac $3 = {url = 0x933e780, cache = 0x93cdd88 "function FindProxyForURL(url, host) {\n if (isPlainHostName(host) ||\n\tisInNet(host, \"10.75.22.0\", \"255.255.254.0\") ||\n\tisInNet(host, \"10.23.104.0\", \"255.255.248.0\") ||\n\tisInNet(host, \"192.168.0.0\", "..., expires = 0} Cheers. 313228 4 brian 2010-11-24 04:40:31 -0800 Was the last stacktrace any more useful? I'm increasing the priority of this bug since it is causing both the gnome-panel's clock and rhythmbox to crash dozens of times a day. 324106 5 brian 2010-12-18 07:18:26 -0800 Any ideas on this with the new stack trace? This bug is very annoying as it's crashing multiple programs here many times a day as they try to use libproxy to determine how to access the Internet. 331594 6 brian 2011-01-10 06:03:53 -0800 You asked for a stack trace with symbols and I have attached it, a long time ago. Is this component of webkit ignored and not maintained? Please let me know so that I can file a bug with my distro to remove functionality that is depending on it (and buggy/not working as a result of this bug). 331598 7 brian 2011-01-10 06:22:12 -0800 On second (or third or is it forty-eleventh now?) look, perhaps this is a bug in libproxy and not webkit. I will close it until know better.