Re: [Pan-users] [0.13.3.90] Two possible Bugs - please verify

[Lars Bamberger]

Charles Kerr wrote:
> The part of your server not responding looks reasonable; servers do
> sometimes go dark and stop responding, causing the socket to timeout.
> However I've never seen it bring Pan down before.  That
> 
>>[2]-  Broken pipe             pan
> 
> is pan crashing, then?

Yes. To reproduce:
1. Go online
2. Get new headers of any one group
3. Go offline (I mean terminate you connection to the Internet and do
   *NOT* go offline within Pan's taskmanager.)
4. Let Pan idle until it crashes

I didn't mention step 3 in my first mail (sorry). Is this considered to
be a bug then?

A small part the runlog:

** (pan:561): WARNING **: Error reading from socket: Connection timed out
(nntp.c:93:nntp_get_response(): nntp_get_response)(thread
0x81eaed0)(time 18:50:26)(depth   4) TRACE: - nntp_get_response
** (pan:561): WARNING **:
    MODE READER check failed: Error reading from socket.
(nntp.c:459:nntp_can_post():       nntp_can_post)(thread 0x81eaed0)(time
18:50:26)(depth   3) TRACE: - nntp_can_post
(status-item.c:185:status_item_set_active():status_item_set_active)(thread
0x81eaed0)(time 18:50:26)(depth   4) TRACE: + status_item_set_active
(gui.c:702:status_item_active_changed_cb():status_item_active_changed_cb)(thread
0x81eaed0)(time 18:50:26)(depth   5) TRACE: + status_item_active_changed_cb
(gui.c:719:status_item_active_changed_cb():status_item_active_changed_cb)(thread
0x81eaed0)(time 18:50:26)(depth   4) TRACE: - status_item_active_changed_cb
(status-item.c:193:status_item_set_active():status_item_set_active)(thread
0x81eaed0)(time 18:50:26)(depth   3) TRACE: - status_item_set_active
(status-item.c:185:status_item_set_active():status_item_set_active)(thread
0x81eaed0)(time 18:50:26)(depth   4) TRACE: + status_item_set_active
(gui.c:702:status_item_active_changed_cb():status_item_active_changed_cb)(thread
0x81eaed0)(time 18:50:26)(depth   5) TRACE: + status_item_active_changed_cb
(gui.c:719:status_item_active_changed_cb():status_item_active_changed_cb)(thread
0x81eaed0)(time 18:50:26)(depth   4) TRACE: - status_item_active_changed_cb
(status-item.c:193:status_item_set_active():status_item_set_active)(thread
0x81eaed0)(time 18:50:26)(depth   3) TRACE: - status_item_set_active
(nntp.c:182:nntp_disconnect():     nntp_disconnect)(thread
0x81eaed0)(time 18:50:26)(depth   4) TRACE: + nntp_disconnect
(sockets.c:248:pan_socket_putline():  pan_socket_putline)(thread
0x81eaed0)(time 18:50:26) SOCKET OUTPUT: [1043862626][socket 0x83d9ca0
putline][QUIT

]
Broken pipe


Parts of the backtrace:

** (pan:640): WARNING **: Error reading from socket: Connection timed out

** (pan:640): WARNING **: MODE READER check failed: Error reading from
socket.

Program received signal SIGPIPE, Broken pipe.
[Switching to Thread 11276 (LWP 640)]
0x405a9a74 in write () from /lib/libc.so.6
(gdb) bt
#0  0x405a9a74 in write () from /lib/libc.so.6
#1  0x404b54f8 in __DTOR_END__ () from /lib/libpthread.so.0
#2  0x403c3106 in g_io_unix_write () from /usr/local/lib/libglib-2.0.so.0
#3  0x4039b593 in g_io_channel_flush () from /usr/local/lib/libglib-2.0.so.0
#4  0x080944df in pan_socket_putline ()
#5  0x080827d2 in nntp_command ()
#6  0x08084b26 in nntp_disconnect ()
#7  0x0808f16b in queue_init ()
#8  0x0808f82f in queue_init ()
#9  0x403b92b3 in g_thread_create_proxy () from
/usr/local/lib/libglib-2.0.so.0
#10 0x404a7038 in pthread_start_thread () from /lib/libpthread.so.0
#11 0x404a7085 in pthread_start_thread_event () from /lib/libpthread.so.0
(gdb) info threads
* 13 Thread 11276 (LWP 640)  0x405a9a74 in write () from /lib/libc.so.6
  12 Thread 10251 (LWP 639)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  11 Thread 9226 (LWP 638)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  10 Thread 8201 (LWP 637)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  9 Thread 7176 (LWP 636)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  8 Thread 6151 (LWP 635)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  7 Thread 5126 (LWP 634)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  6 Thread 4101 (LWP 633)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  5 Thread 3076 (LWP 632)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  4 Thread 2051 (LWP 631)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  3 Thread 1026 (LWP 630)  0x40509b29 in sigsuspend () from /lib/libc.so.6
  2 Thread 2049 (LWP 629)  0x405af233 in poll () from /lib/libc.so.6
  1 Thread 1024 (LWP 628)  0x405af233 in poll () from /lib/libc.so.6

(...)

(gdb) thread 13
[Switching to thread 13 (Thread 11276 (LWP 640))]#0  0x405a9a74 in write ()
   from /lib/libc.so.6
(gdb) bt
#0  0x405a9a74 in write () from /lib/libc.so.6
#1  0x404b54f8 in __DTOR_END__ () from /lib/libpthread.so.0
#2  0x403c3106 in g_io_unix_write () from /usr/local/lib/libglib-2.0.so.0
#3  0x4039b593 in g_io_channel_flush () from /usr/local/lib/libglib-2.0.so.0
#4  0x080944df in pan_socket_putline ()
#5  0x080827d2 in nntp_command ()
#6  0x08084b26 in nntp_disconnect ()
#7  0x0808f16b in queue_init ()
#8  0x0808f82f in queue_init ()
#9  0x403b92b3 in g_thread_create_proxy () from
/usr/local/lib/libglib-2.0.so.0
#10 0x404a7038 in pthread_start_thread () from /lib/libpthread.so.0
#11 0x404a7085 in pthread_start_thread_event () from /lib/libpthread.so.0
(gdb) quit



I can provide the full runlog and backtrace with you like, and I can
also recompile with all debuging tured on if needed.

Lars




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