RE: Cannot Read Mailbox

[John Frankish <j-frankish slb com>]

> > On 01/02/2014 04:39:44 AM Thu, John Frankish wrote:
> > Hi,
> >
> > Using balsa-2.5.1 with gtk3, I set up a pop3 account.
> >
> > 2. After successfully downloading the mail, I clicked on "mailbox" to start
> > reading my inbox, but the moving blue "wait" animation shows in the bottom
> > left hand corner and no mails are displayed. Closing balsa and starting from
> > the command line does not give any error messages and the contents of the
> > inbox are still not displayed.
> >
> >  As the 300+ emails have been deleted from the server, I would like to be
> > able to fix this - does anybody have any trouble-shooting hints?
>
> Is the mailbox file stored somewhere with slow access?  An mbox file of that
> size should be read from a local drive in a second or two at most.

The mailbox file is stored on a local drive

> Does 'top' show Balsa using 100% cpu?

No, about 12%, which equates to one cpu core

> If so, it may be stuck in a loop parsing
> the file; if not, it must be blocked from some action.  You could try running
> under gdb, interrupt it with ctrl-C, and get the stack trace with 'bt'--that
> might show what Balsa was trying to do.  Write back with what you see...

Not too many clues from gdb, but here it is anyway: 

$ gdb balsa

(gdb) run balsa
Starting program: /usr/local/bin/balsa balsa
warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7fff4059f000
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be 
available.
** Message: init gpgme version 1.4.3
** Message: protocol OpenPGP: engine /usr/local/bin/gpg2 (home (null), version 2.0.22)
** Message: protocol CMS: engine /usr/local/bin/gpgsm (home (null), version 2.0.22)
** Message: protocol GPGCONF: engine /usr/local/bin/gpgconf (home (null), version 2.0.22)
** Message: protocol Assuan: engine /home/tc/.gnupg/S.gpg-agent (home !GPG_AGENT, version 1.0)
** Message: OpenPGP protocol supported
** Message: CMS (aka S/MIME) protocol supported
Network is available (1388752939)
[click on inbox, nothing happens]
^C
Program received signal SIGINT, Interrupt.
0x00007f75a2f53dfd in poll () from /lib/libc.so.6
(gdb) bt
#0  0x00007f75a2f53dfd in poll () from /lib/libc.so.6
#1  0x00007f75a3676add in ?? () from /usr/local/lib/libglib-2.0.so.0
#2  0x00007f75a3676c0a in g_main_loop_run () from /usr/local/lib/libglib-2.0.so.0
#3  0x00007f75ad87404a in gtk_main () from /usr/local/lib/libgtk-3.so.0
#4  0x00000000004afbcc in ?? ()
#5  0x00007f75a3f52cdc in ffi_call_unix64 () from /usr/local/lib/libffi.so.6
#6  0x00007f75a3f52970 in ffi_call () from /usr/local/lib/libffi.so.6
#7  0x00007f75a416980a in g_cclosure_marshal_generic () from /usr/local/lib/libgobject-2.0.so.0
#8  0x00007f75a417077d in g_closure_invoke () from /usr/local/lib/libgobject-2.0.so.0
#9  0x00007f75a4165afb in ?? () from /usr/local/lib/libgobject-2.0.so.0
#10 0x00007f75a416c717 in g_signal_emit_valist () from /usr/local/lib/libgobject-2.0.so.0
#11 0x00007f75a417efde in g_signal_emit () from /usr/local/lib/libgobject-2.0.so.0
#12 0x00007f75a45e1c4e in g_application_run () from /usr/local/lib/libgio-2.0.so.0
#13 0x0000000000426d6e in ?? ()
#14 0x00007f75a2eb9468 in __libc_start_main () from /lib/libc.so.6
#15 0x0000000000426db1 in ?? ()