Run apprunner. Type http://1 in the urlbar and hit return. Crash: #3 0x408bd01c in PR_Assert (s=0x408e6c75 "!\"I/O method is invalid\"", file=0x408e6c6a "priometh.c", ln=86) at prlog.c:480 #4 0x408ba51d in _PR_InvalidStatus () at priometh.c:86 #5 0x408ba5c7 in PR_Close (fd=0x82fdfa0) at priometh.c:109 #6 0x4023c4e4 in NET_BeginConnect (url=0x82fef00 "http://1/", ip_address_string=0x0, prot_name=0x4017f675 "HTTP", def_port=80, sock=0x83f2164, dummy=0 '\000', tcp_con_data=0x8344894, window_id=0x8344710, error_msg=0x8344678, socks_host=0, socks_port=0, localIP=0) at /builds/thu/mozilla/network/main/mkconect.c:1274 #7 0x4016f8dd in net_start_http_connect (ce=0x834df30) at /builds/thu/mozilla/network/protocol/http/mkhttp.c:500 #8 0x4017719d in net_ProcessHTTP (ce=0x834df30) at /builds/thu/mozilla/network/protocol/http/mkhttp.c:3523 #9 0x40177072 in net_HTTPLoad (ce=0x834df30) at /builds/thu/mozilla/network/protocol/http/mkhttp.c:3491 #10 0x40241436 in NET_GetURL (URL_s=0x8344570, output_format=102, window_id=0x8344710, exit_routine=0x4026beb0 <bam_exit_routine(URL_Struct_ *, int, MWContext_ *)>) at /builds/thu/mozilla/network/main/mkgeturl.c:2979 #11 0x4026a43d in nsNetlibService::OpenStream (this=0x807e8a8, aUrl=0x82fe948, aConsumer=0x825f0d0) at /builds/thu/mozilla/network/module/nsNetService.cpp:476 #12 0x4028fa29 in nsDocumentBindInfo::Bind (this=0x825f0d0, aURL=0x82fe948, aListener=0x0) at /builds/thu/mozilla/webshell/src/nsDocLoader.cpp:1730 #13 0x4028f909 in nsDocumentBindInfo::Bind (this=0x825f0d0, aURLSpec=@0xbfffdff0, aPostData=0x0, aListener=0x0) at /builds/thu/mozilla/webshell/src/nsDocLoader.cpp:1694 #14 0x4028e3c7 in nsDocLoaderImpl::LoadDocument (this=0x82de238, aURLSpec=@0xbfffdff0, aCommand=0x4029b855 "view", aContainer=0x82dde58, aPostData=0x0, aExtraInfo=0x0, anObserver=0x82dde18, aType=nsURLReload, aLocalIP=0) at /builds/thu/mozilla/webshell/src/nsDocLoader.cpp:971 It may be a stupid url but that's not an excuse for crashing. :-)

paulmac, is this Linux Only? How does Win32 and Mac do?

happens on windows also, should be addressed by netlib re-write

Deffered till Necko lands...

This magically doesn't crash anymore on any platform. In fact, you can even hit the stop button on selected platforms. Very impressive. Marking fixed.

Changing all Networking Library/Browser bugs to Networking-Core component for Browser. Occasionally, Bugzilla will burp and cause Verified bugs to reopen when I do this in a bulk change. If this happens, I will fix. ;-)

Bulk move of all Networking-Core (to be deleted component) bugs to new Networking component.