I tried to make clear below that I am running without extensions.  This bug repros on 3.0.3 or 3.1beta of Firefox.  

I also tried to make clear that I DID follow the instructions for getting symbols, but (1) those instructions are for Hardy, not Intrepid (I edited this to make it work) and (2) those instructions do not work for different versions of FF.  It should be made clear that certain elements of the instructions need to by entered differently for different versions (I'm an ex-dev and figured out, but even for me it wasn't obvious).

So, the backtrace that I uploaded was created using all the symbol files there were available to me.  Can you get anything from that backtrace?



+Reardon

> From: <email address hidden>
> To: <email address hidden>
> Date: Thu, 23 Oct 2008 12:22:25 +0000
> Subject: Re: [Bug 286119] Re: firefox 3.0.3 crashes (no SIG) on most	pages	wimages: 8.10beta AMD64
> 
> On Thu, Oct 23, 2008 at 12:06:05PM -0000, TrReardon wrote:
> > This appears to be a race condition...repro's on exactly the same pages
> > but only 30% of time.  It's always difficult to give repro steps for
> > race conditions.
> > 
> > Could you dig anything out of the traces?  I can see that ff is doing
> > some kind of name resolve, but I can't see what functions it ultimately
> > crashes on.  Any sense of what symbol files I am missing?
> > 
> 
> Please install the -dbgsym packages so we get symbols in the
> backtrace.
> 
> (Look at https://wiki.ubuntu.com/MozillaTeam/Bugs#Crashes to get an
> idea where to get those from)
> 
> Thanks,
> 
>  - Alexander
> 
> -- 
> firefox 3.0.3 crashes (no SIG) on most pages w images: 8.10beta AMD64
> https://bugs.launchpad.net/bugs/286119
> You received this bug notification because you are a direct subscriber
> of the bug.
> 
> Status in “firefox-3.0” source package in Ubuntu: Incomplete
> 
> Bug description:
> Basically the same stacktrace on most pages.  Is NOT tied to Flash (have tried w Flash installed and removed).  Not usable, using Firefox under Wine as workaround (ick!)
> 
> 
> 
> *** glibc detected *** /usr/lib/firefox-3.0.3/firefox: double free or corruption (!prev): 0x00007f2a04430cb0 ***
> ======= Backtrace: =========
> /lib/libc.so.6[0x7f2a1c268938]
> /lib/libc.so.6(cfree+0x76)[0x7f2a1c26af86]
> /usr/lib/libtalloc.so.1(talloc_free+0x128)[0x7f2a0a085b88]
> /lib/libnss_wins.so.2[0x7f2a0b2d8f48]
> /usr/lib/libtalloc.so.1(talloc_free+0x232)[0x7f2a0a085c92]
> /lib/libnss_wins.so.2(alloc_sub_basic+0x8e9)[0x7f2a0b300cb2]
> /lib/libnss_wins.so.2(talloc_sub_basic+0x24)[0x7f2a0b30121d]
> /lib/libnss_wins.so.2[0x7f2a0b250be9]
> /lib/libnss_wins.so.2(lp_lockdir+0x1e)[0x7f2a0b251a93]
> /lib/libnss_wins.so.2(lock_path+0x9)[0x7f2a0b2fb922]
> /lib/libnss_wins.so.2(receive_unexpected+0x2c)[0x7f2a0b2a6321]
> /lib/libnss_wins.so.2(receive_nmb_packet+0x3b)[0x7f2a0b2a8d2e]
> /lib/libnss_wins.so.2(name_query+0x303)[0x7f2a0b2ab530]
> /lib/libnss_wins.so.2(_nss_wins_gethostbyname_r+0x2c8)[0x7f2a0b24e202]
> /lib/libnss_wins.so.2(_nss_wins_gethostbyname2_r+0x2b)[0x7f2a0b24e484]
> /lib/libc.so.6[0x7f2a1c2bcf73]
> /lib/libc.so.6(getaddrinfo+0x1de)[0x7f2a1c2be96e]
> /usr/lib/libnspr4.so.0d(PR_GetAddrInfoByName+0x108)[0x7f2a1b916828]
> /usr/lib/xulrunner-1.9.0.3/libxul.so[0x7f2a1aa2250a]
> /usr/lib/libnspr4.so.0d[0x7f2a1b922dc3]
> /lib/libpthread.so.0[0x7f2a1cf163ea]
> /lib/libc.so.6(clone+0x6d)[0x7f2a1c2d5c6d]
> ======= Memory map: ========
> 00400000-00408000 r-xp 00000000 08:02 534609                             /usr/lib/firefox-3.0.3/firefox
> 00608000-00609000 r--p 00008000 08:02 534609                             /usr/lib/firefox-3.0.3/firefox
> 00609000-0060a000 rw-p 00009000 08:02 534609                             /usr/lib/firefox-3.0.3/firefox
> 01be5000-03560000 rw-p 01be5000 00:00 0                                  [heap]
> 40da5000-40da6000 ---p 40da5000 00:00 0 
> 40da6000-415a6000 rw-p 40da6000 00:00 0 
> 41745000-41746000 ---p 41745000 00:00 0 
> 41746000-41f46000 rw-p 41746000 00:00 0 
> 41f46000-41f47000 ---p 41f46000 00:00 0 
> 41f47000-42747000 rw-p 41f47000 00:00 0 
> 42747000-42748000 ---p 42747000 00:00 0 
> 42748000-42f48000 rw-p 42748000 00:00 0 
> 42f48000-42f49000 ---p 42f48000 00:00 0 
> 42f49000-43749000 rw-p 42f49000 00:00 0 
> 43749000-4374a000 ---p 43749000 00:00 0 
> 4374a000-43f4a000 rw-p 4374a000 00:00 0 
> 43f4a000-43f4b000 ---p 43f4a000 00:00 0 
> 43f4b000-4474b000 rw-p 43f4b000 00:00 0 
> 4474b000-4474c000 ---p 4474b000 00:00 0 
> 4474c000-44f4c000 rw-p 4474c000 00:00 0 
> 44f4c000-44f4d000 ---p 44f4c000 00:00 0 
> 44f4d000-4574d000 rw-p 44f4d000 00:00 0 
> 4574d000-4574e000 ---p 4574d000 00:00 0 
> 4574e000-45f4e000 rw-p 4574e000 00:00 0 
> 45f4e000-45f4f000 ---p 45f4e000 00:00 0 
> 45f4f000-4674f000 rw-p 45f4f000 00:00 0 
> 4674f000-46750000 ---p 4674f000 00:00 0 
> 46750000-46f50000 rw-p 46750000 00:00 0 
> 46f50000-46f51000 ---p 46f50000 00:00 0 
> 46f51000-47751000 rw-p 46f51000 00:00 0 
> 47751000-47752000 ---p 47751000 00:00 0 
> 47752000-47f52000 rw-p 47752000 00:00 0 
> 7f2a04000000-7f2a04487000 rw-p 7f2a04000000 00:00 0 
> 7f2a04487000-7f2a08000000 ---p 7f2a04487000 00:00 0 
> 7f2a0939b000-7f2a093f2000 r--p 00000000 08:06 327801                     /home/reardon/.fonts/tahomabd.ttf
> 7f2a093f2000-7f2a09450000 r--p 00000000 08:06 327803                     /home/reardon/.fonts/tahoma.ttf
> 7f2a09450000-7f2a09454000 r-xp 00000000 08:02 1687642                    /lib/libnss_dns-2.8.90.so
> 7f2a09454000-7f2a09654000 ---p 00004000 08:02 1687642                    /lib/libnss_dns-2.8.90.so
> 7f2a09654000-7f2a09655000 r--p 00004000 08:02 1687642                    /lib/libnss_dns-2.8.90.so
> 7f2a09655000-7f2a09656000 rw-p 00005000 08:02 1687642                    /lib/libnss_dns-2.8.90.so
> 7f2a09656000-7f2a09658000 r-xp 00000000 08:02 1687646                    /lib/libnss_mdns4_minimal.so.2
> 7f2a09658000-7f2a09857000 ---p 00002000 08:02 1687646                    /lib/libnss_mdns4_minimal.so.2
> 7f2a09857000-7f2a09858000 rw-p 00001000 08:02 1687646                    /lib/libnss_mdns4_minimal.so.2
> 7f2a09858000-7f2a0985a000 r-xp 00000000 08:02 2064518                    /usr/lib/gconv/IBM850.so
> 7f2a0985a000-7f2a09a59000 ---p 00002000 08:02 2064518                    /usr/lib/gconv/IBM850.so
> 7f2a09a59000-7f2a09a5a000 r--p 00001000 08:02 2064518                    /usr/lib/gconv/IBM850.so
> 7f2a09a5a000-7f2a09a5b000 rw-p 00002000 08:02 2064518                    /usr/lib/gconv/IBM850.so
> 7f2a09a5b000-7f2a09a5d000 r-xp 00000000 08:02 1687598                    /lib/libkeyutils-1.2.so
> 7f2a09a5d000-7f2a09c5c000 ---p 00002000 08:02 1687598                    /lib/libkeyutils-1.2.so
> 7f2a09c5c000-7f2a09c5e000 rw-p 00001000 08:02 1687598                    /lib/libkeyutils-1.2.so
> 7f2a09c5e000-7f2a09c65000 r-xp 00000000 08:02 240521                     /usr/lib/libkrb5support.so.0.1
> 7f2a09c65000-7f2a09e64000 ---p 00007000 08:02 240521                     /usr/lib/libkrb5support.so.0.1
> 7f2a09e64000-7f2a09e65000 r--p 00006000 08:02 240521                     /usr/lib/libkrb5support.so.0.1
> 7f2a09e65000-7f2a09e66000 rw-p 00007000 08:02 240521                     /usr/lib/libkrb5support.so.0.1
> 7f2a09e66000-7f2a09e7f000 r-xp 00000000 08:02 240544                     /usr/lib/libsasl2.so.2.0.22
> 7f2a09e7f000-7f2a0a07e000 ---p 00019000 08:02 240544                     /usr/lib/libsasl2.so.2.0.22
> 7f2a0a07e000-7f2a0a07f000 r--p 00018000 08:02 240544                     /usr/lib/libsasl2.so.2.0.22
> 7f2a0a07f000-7f2a0a080000 rw-p 00019000 08:02 240544                     /usr/lib/libsasl2.so.2.0.22
> 7f2a0a080000-7f2a0a088000 r-xp 00000000 08:02 239347                     /usr/lib/libtalloc.so.1.2.0
> 7f2a0a088000-7f2a0a287000 ---p 00008000 08:02 239347                     /usr/lib/libtalloc.so.1.2.0
> 7f2a0a287000-7f2a0a288000 r--p 00007000 08:02 239347                     /usr/lib/libtalloc.so.1.2.0
> 7f2a0a288000-7f2a0a289000 rw-p 00008000 08:02 239347                     /usr/lib/libtalloc.so.1.2.0
> 7f2a0a289000-7f2a0a292000 r-xp 00000000 08:02 1687627                    /lib/libcrypt-2.8.90.so
> 7f2a0a292000-7f2a0a491000 ---p 00009000 08:02 1687627                    /lib/libcrypt-2.8.90.so
> 7f2a0a491000-7f2a0a492000 r--p 00008000 08:02 1687627                    /lib/libcrypt-2.8.90.so
> 7f2a0a492000-7f2a0a493000 rw-p 00009000 08:02 1687627                    /lib/libcrypt-2.8.90.so
> 7f2a0a493000-7f2a0a4c1000 rw-p 7f2a0a493000 00:00 0 
> 7f2a0a4c1000-7f2a0a4c4000 r-xp 00000000 08:02 1687678                    /lib/libcom_err.so.2.1
> 7f2a0a4c4000-7f2a0a6c3000 ---p 00003000 08:02 1687678                    /lib/libcom_err.so.2.1
> 7f2a0a6c3000-7f2a0a6c4000 r--p 00002000 08:02 1687678                    /lib/libcom_err.so.2.1
> 7f2a0a6c4000-7f2a0a6c5000 rw-p 00003000 08:02 1687678                    /lib/libcom_err.so.2.1
> 7f2a0a6c5000-7f2a0a6e8000 r-xp 00000000 08:02 240517                     /usr/lib/libk5crypto.so.3.1
> 7f2a0a6e8000-7f2a0a8e7000 ---p 00023000 08:02 240517                     /usr/lib/libk5crypto.so.3.1
> 7f2a0a8e7000-7f2a0a8e9000 r--p 00022000 08:02 240517                     /usr/lib/libk5crypto.so.3.1
> 7f2a0a8e9000-7f2a0a8ea000 rw-p 00024000 08:02 240517                     /usr/lib/libk5crypto.so.3.1
> 7f2a0a8ea000-7f2a0a982000 r-xp 00000000 08:02 240520                     /usr/lib/libkrb5.so.3.3
> 7f2a0a982000-7f2a0ab81000 ---p 00098000 08:02 240520                     /usr/lib/libkrb5.so.3.3
> 7f2a0ab81000-7f2a0ab84000 r--p 00097000 08:02 240520                     /usr/lib/libkrb5.so.3.3
> 7f2a0ab84000-7f2a0ab85000 rw-p 0009a000 08:02 240520                     /usr/lib/libkrb5.so.3.3
> 7f2a0ab85000-7f2a0abb0000 r-xp 00000000 08:02 240513                     /usr/lib/libgssapi_krb5.so.2.2
> 7f2a0abb0000-7f2a0adaf000 ---p 0002b000 08:02 240513                     /usr/lib/libgssapi_krb5.so.2.2
> 7f2a0adaf000-7f2a0adb0000 r--p 0002a000 08:02 240513                     /usr/lib/libgssapi_krb5.so.2.2
> 7f2a0adb0000-7f2a0adb1000 rw-p 0002b000 08:02 240513                     /usr/lib/libgssapi_krb5.so.2.2
> 7f2a0adb1000-7f2a0adbf000 r-xp 00000000 08:02 239622                     /usr/lib/liblber-2.4.so.2.1.0
> 7f2a0adbf000-7f2a0afbe000 ---p 0000e000 08:02 239622                     /usr/lib/liblber-2.4.so.2.1.0
> 7f2a0afbe000-7f2a0afbf000 r--p 0000d000 08:02 239622                     /usr/lib/liblber-2.4.so.2.1.0
> 7f2a0afbf000-7f2a0afc0000 rw-p 0000e000 08:02 239622                     /usr/lib/liblber-2.4.so.2.1.0
> 7f2a0afc0000-7f2a0b003000 r-xp 00000000 08:02 240580                     /usr/lib/libldap_r-2.4.so.2.1.0
> 7f2a0b003000-7f2a0b202000 ---p 00043000 08:02 240580                     /usr/lib/libldap_r-2.4.so.2.1.0Aborted (core dumped)
> 
> 
> 
> 
> dpkg -l | grep firefox
> ii  firefox                                    3.0.3+nobinonly-0ubuntu1           meta package for the popular mozilla web bro
> ii  firefox-3.0                                3.0.3+nobinonly-0ubuntu1           safe and easy web browser from Mozilla
> ii  firefox-3.0-branding                       3.0.3+nobinonly-0ubuntu1           Package that ships the firefox branding
> ii  firefox-3.0-gnome-support                  3.0.3+nobinonly-0ubuntu1           Support for Gnome in Mozilla Firefox
> ii  firefox-gnome-support                      3.0.3+nobinonly-0ubuntu1           meta package pointing to the latest gnome-su
>  dpkg -l | grep ubufox
> ii  ubufox                                     0.6~pre+bzr141-0ubuntu1            Ubuntu Firefox specific configuration defaul