[Bug 276831] [NEW] Thunderbird crashes with "Segmentation Fault", debug log shows "failed creating protocol instance to play queued url", trying to download headers from Dovecot IMAP server

[Earl Ruby]

Public bug reported:

Binary package hint: thunderbird

Thunderbird 2.0.0.17 keeps crashing on Ubuntu 8.04 LTS with a
"Segmentation Fault" error just after I start it up, while I'm trying to
load the message headers in my Inbox. (e.g. I start Thunderbird, click
the Inbox folder, and it crashes while loading the message headers.)

I began starting Thunderbird in debug mode using this script to see if
that would shed any clues on what was going on:

------------------------------
#!/bin/sh

# Log Thunderbird imap traffic for debugging

MYDATE=`date "+%Y%m%d_%H%M%S"`
NSPR_LOG_MODULES=IMAP:5
NSPR_LOG_FILE=/tmp/thunderbird_${MYDATE}.log
export NSPR_LOG_MODULES NSPR_LOG_FILE

/usr/bin/thunderbird &
exit $?
------------------------------

The logs always show something like this just before the crash --
"failed creating protocol instance to play queued url" -- it crashes
retrieving different email messages, so it's not a corrupt message
that's causing the problem:

-1320940656[890ad80]: 8b8bf30:imap.switchmanagement.com:S-INBOX:CreateNewLineFromSocket:
-1320940656[890ad80]: ReadNextLine [stream=8c7aaa0 nb=3 needmore=0]
-1320940656[890ad80]: 8b8bf30:imap.switchmanagement.com:S-INBOX:CreateNewLineFromSocket: )
-1320940656[890ad80]: 8b8bf30:imap.switchmanagement.com:S-INBOX:STREAM:CLOSE: Normal Message End Download Stream
-1221605600[805d970]: queuing url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>2434>1
-1221605600[805d970]: considering playing queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: failed creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: queuing url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>2435>1
-1221605600[805d970]: considering playing queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: failed creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: queuing url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>2436>1
-1221605600[805d970]: considering playing queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: failed creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: queuing url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>2437>1
-1221605600[805d970]: considering playing queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: failed creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: queuing url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>2438>1
-1221605600[805d970]: considering playing queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1
-1221605600[805d970]: creating protocol instance to play queued url:imap://earl@imap.switchmanagement.com:145/addmsgflags>UID>.INBOX>1202>1

Since I'm using IMAP I tried clearing out the INBOX, INBOX.msf, and
INBOX.sbd/ files and letting Thunderbird rebuild them from scratch, but
that didn't help.

The IMAP server is using Dovecot 1.0.15. I also tried clearing out the
~/Maildir/dovecot* index files on the IMAP mail server and letting
dovecot recreate them, in case they were corrupt and dovecot was sending
erroneous messages to Thunderbird, but that didn't help either.


> lsb_release -rd
Description:    Ubuntu 8.04.1
Release:        8.04

> apt-cache policy thunderbird
thunderbird:
  Installed: 2.0.0.17+nobinonly-0ubuntu0.8.04.1
  Candidate: 2.0.0.17+nobinonly-0ubuntu0.8.04.1
  Version table:
 *** 2.0.0.17+nobinonly-0ubuntu0.8.04.1 0
        500 http://security.ubuntu.com hardy-security/main Packages
        100 /var/lib/dpkg/status
     2.0.0.16+nobinonly-0ubuntu0.8.04.1 0
        500 http://us.archive.ubuntu.com hardy-updates/main Packages
     2.0.0.12+nobinonly-0ubuntu1 0
        500 http://us.archive.ubuntu.com hardy/main Packages

** Affects: thunderbird (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Thunderbird crashes with "Segmentation Fault", debug log shows "failed creating protocol instance to play queued url", trying to download headers from Dovecot IMAP server
https://bugs.launchpad.net/bugs/276831
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