Date: Tue, 09 Oct 2007 15:08:48 -0500 From: "Jeremy Messenger" <mezz7@cox.net> To: "Joe Marcus Clarke" <marcus@freebsd.org> Cc: freebsd-gnome@freebsd.org, jahnke@sonatabio.com Subject: Re: (minor) issues after upgrading to 2.20 Message-ID: <op.tzx4wyrh9aq2h7@mezz.mezzweb.com> In-Reply-To: <1191910246.77136.7.camel@shumai.marcuscom.com> References: <1191517967.61533.122.camel@pinot.fmjassoc.com> <47093C60.1060603@freebsd.org> <op.tzuk25j49aq2h7@mezz.mezzweb.com> <op.tzutxrj39aq2h7@mezz.mezzweb.com> <1191807676.55835.1.camel@shumai.marcuscom.com> <op.tzuvnywj9aq2h7@mezz.mezzweb.com> <1191824301.55835.3.camel@shumai.marcuscom.com> <op.tzvaeyba9aq2h7@mezz.mezzweb.com> <1191910246.77136.7.camel@shumai.marcuscom.com>
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On Tue, 09 Oct 2007 01:10:46 -0500, Joe Marcus Clarke <marcus@FreeBSD.or= g> = wrote: > On Mon, 2007-10-08 at 02:14 -0500, Jeremy Messenger wrote: >> On Mon, 08 Oct 2007 01:18:21 -0500, Joe Marcus Clarke = >> <marcus@FreeBSD.org> >> wrote: >> >> > On Sun, 2007-10-07 at 20:56 -0500, Jeremy Messenger wrote: >> >> On Sun, 07 Oct 2007 20:41:16 -0500, Joe Marcus Clarke >> >> <marcus@FreeBSD.org> >> >> wrote: >> >> >> >> > On Sun, 2007-10-07 at 20:18 -0500, Jeremy Messenger wrote: >> >> >> On Sun, 07 Oct 2007 17:07:43 -0500, Jeremy Messenger = >> <mezz7@cox.net> >> >> >> wrote: >> >> >> >> >> <snip> >> >> >> > Yelp likes to crash at the every exit. I couldn't get good >> >> >> backtraces, I >> >> >> > think I will have to reinstall firefox with WITH_DEBUG to get= = >> good >> >> >> one. >> >> >> >> >> >> The backtraces look better now after reinstall firefox w/ = >> WITH_DEBUG. >> >> >> >> >> >> http://people.freebsd.org/~mezz/gdb/gdb-yelp.txt >> >> > >> >> > Firefox is trying to call some method in a module that gdb doesn= 't >> >> know >> >> > about. Do you have any plug-ins or extensions loaded in Firefox= ? >> >> >> >> Not that I know as I don't use Firefox. I went to Firefox's add-on= = >> place >> >> and it shows that I have 'DOM Inspector 1.8.1.7', that's it. Other= = >> days >> >> ago, I did add flashblock to reproduce Frank Jahnke's problem and = I >> >> deleted it after that, but I can reproduce Yelp problem before I = >> added >> >> flashblock. >> >> >> >> > Can you print out the value of mInfo in frame 1 of the stack? >> >> >> >> Yeah, I re-ran gdb and now it's frame 3, so here: >> >> >> >> (gdb) f 3 >> >> #3 0x292bcded in ~nsGenericFactory (this=3D0x824f380) at >> >> nsGenericFactory.cpp:64 >> >> 64 nsGenericFactory.cpp: No such file or directory. >> >> in nsGenericFactory.cpp >> >> Current language: auto; currently c++ >> >> (gdb) print mInfo >> >> $1 =3D (const nsModuleComponentInfo *) 0xbfbfe7e0 >> > >> > I need to see the contents of the pointer, so: >> > >> > print *mInfo >> >> (gdb) print *mInfo >> $1 =3D { >> mDescription =3D 0x878dd004 <Error reading address 0x878dd004: Bad= >> address>, >> mCID =3D {m0 =3D 673230848, m1 =3D 16744, m2 =3D 10495, m3 =3D >> "\020\036?(?|\021\b"}, >> mContractID =3D 0xbfbfe838 "X???N??(", >> mConstructor =3D 0x28076ba1 <_rtld_bind_start+17>, >> mRegisterSelfProc =3D 0x28209800, mUnregisterSelfProc =3D 0x20, >> mFactoryDestructor =3D 0x80cdcf0, >> mGetInterfacesProc =3D 0x293794c8 <vtable for nsTraceRefcntImpl+8>= , >> mGetLanguageHelperProc =3D 0x28ff41c8 <__JCR_LIST__+4>, >> mClassInfoGlobal =3D 0x28ff1e10, mFlags =3D 0} >> > > It almost looks like it's trying to dereference a pointer to something= > that is no longer in memory. Like a module has already been unloaded,= > and that code is being called. I just upgraded my -CURRENT amd64 > machine, and I can't reproduce there either. > > But I did find something that may help. Extract Firefox, then edit > embedding/base/nsEmbedAPI.cpp, and uncomment line 56. Rebuild Firefox= , > and see if this helps. We may need to add that for < -CURRENT. The crash disappear when I uncomment that line 56. #define HACK_AROUND_NONREENTRANT_INITXPCOM Cheers, Mezz > Joe -- = mezz7@cox.net - mezz@FreeBSD.org FreeBSD GNOME Team - FreeBSD Multimedia Hat (ports, not src) http://www.FreeBSD.org/gnome/ - gnome@FreeBSD.org http://wiki.freebsd.org/multimedia - multimedia@FreeBSD.org
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