Crash on getting facebook offline messages

[siwyandrew]

Hi , recently I have got a problem with my pidgin facebook plugin. When I try to open pidgin with "Show unread messages" option checked at start facebook crashes with error (sorry if i translated something wrong, because i have polish version of pidgin)
"0x06c434ds2 instruction reffers to memory address 0x6870683b. memory can't be read"

When i click ok pidgin closes itself. With this option checked Pidgin tries to show conversiation that I have already read on webpage. deleting whole history from .purple folder doesn't help.

http://wklej.org/id/2779887/ here is debug log

http://wklej.org/id/2779888/ here is pidgin rtp file

If i try to open pidgin with this unchecked, and when it loads check tris option manually it works, but i dont want to log into facebook manually to read offline messages. If some important informations are missing please ask

[dequis]

@EionRobb need help with this one, how do we get some proper debug symbols for this?

[siwyandrew]

if you asked me, then I don't know , I hoped that I gave you all info, that could help.

[EionRobb]

@siwyandrew do you have the debug symbols installed for Pidgin? (It's an option you pick when you run the Pidgin installer). If not, can you reinstall with debug symbols?

[siwyandrew]

i have created this : http://wklej.org/id/2779888/ rtp using pidgin debug. If i have done something wrong please give me step by step solution how to create proper one. I had run pidgin with all additional plugins disabled, facebook tried to open group chat and then crashed application

[dequis]

Welp it didn't get better. It's some sort of double free but really no clue where.

How about emailing a full debugging log? https://github.com/dequis/purple-facebook/wiki/Debugging-Logs (the one in the description is missing a lot of details, but the full ones have too many details to post publicly)

[siwyandrew]

dequis i doesn't happen everytilme so it may take some time before i will get this error debug, but if it will happen i will send it directly to you by email/private message, but please send me contact to you, I can't find them on your prifile

[dequis]

Well, sending them to jgeboski's address as mentioned in that page is fine too (he just forwards me facebook stuff nowadays), but i'm dx@dxzone.com.ar

[dequis]

Posting stuff here because I keep forgetting where I left the logs.

C:\Program Files (x86)\Pidgin\pidgin.exe caused an Access Violation at location 68606191 in module C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll Reading from location 69616d61.

Registers:
eax=69616d61 ebx=07796a90 ecx=00000019 edx=07250d40 esi=077cf2e8 edi=00000000
eip=68606191 esp=0028eba0 ebp=0028ebc8 iopl=0         nv up ei pl nz na pe nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00210202

Call stack:
         C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll [2.28.8.0]
68606191 C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll  g_slist_remove
66AC4DB8 C:\Program Files (x86)\Pidgin\plugins\libfacebook.dll  purple_init_plugin
66ABA87A C:\Program Files (x86)\Pidgin\plugins\libfacebook.dll
         C:\Program Files (x86)\Pidgin\libpurple.dll [2.11.0.0]
         Using Debug Symbols from: C:\Program Files (x86)\Pidgin\pidgin-2.11.0-dbgsym\libpurple.dll.dbgsym
7415DA35 C:\Program Files (x86)\Pidgin\libpurple.dll  purple_connection_destroy
74165F8F C:\Program Files (x86)\Pidgin\libpurple.dll  purple_debug_info
         C:\Windows\SysWOW64\ntdll.dll [6.1.7601.23338]
7777E0A3 C:\Windows\SysWOW64\ntdll.dll  RtlFreeHeap
         C:\Program Files (x86)\Pidgin\libpurple.dll [2.11.0.0]
         Using Debug Symbols from: C:\Program Files (x86)\Pidgin\pidgin-2.11.0-dbgsym\libpurple.dll.dbgsym
74143F82 C:\Program Files (x86)\Pidgin\libpurple.dll  purple_account_disconnect
7415CD81 C:\Program Files (x86)\Pidgin\libpurple.dll  purple_cmds_uninit
         C:\Windows\syswow64\msvcrt.dll [7.0.7601.21878]
765C98DA C:\Windows\syswow64\msvcrt.dll  free
         C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll [2.28.8.0]
685E839E C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll  g_list_sort_with_data
685EC49E C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll  g_source_get_time
685EB167 C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll  g_main_context_dispatch
685EB90D C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll  g_main_context_dispatch
685EBD9D C:\Program Files (x86)\Pidgin\Gtk\bin\libglib-2.0-0.dll  g_main_loop_run
         C:\Program Files (x86)\Pidgin\Gtk\bin\libgtk-win32-2.0-0.dll [2.16.6.0]
020D4260 C:\Program Files (x86)\Pidgin\Gtk\bin\libgtk-win32-2.0-0.dll  gtk_main

Not much better but somewhat improved.

Log stuff:

(20:17:53) http: Performing new request 0773D298 for https://graph.facebook.com/graphql.
(20:17:53) http: Connecting to https://graph.facebook.com/graphql...
(20:17:53) facebook: HTTP Request (0773D298):
(20:17:53) facebook:   Request URL: https://graph.facebook.com/graphql
(20:17:53) facebook:   Request Data: fb_api_req_friendly_name=ThreadQuery&locale=pl&query_params=%7B%220%22%3A%5B%22730714030****4%22%5D%2C%2210%22%3A%22false%22%2C%2211%22%3A%22false%22%2C%2213%22%3A%22false%22%7D&format=json&device_id=ff39f614-58e1-429b-9aee-****&api_key=256002347743983&sig=5421337b4d810df62bc1ddb38b37beb1&method=get&query_id=10153919752036729
[...]

(20:17:53) facebook: HTTP Response (0773D298):
(20:17:53) facebook:   Response Error: 200
(20:17:53) facebook:   Response Data: {"error":{"code":1675030,"api_error_code":null,"summary":"Query Error","description":"Error performing query.","is_silent":false,"is_transient":false,"requires_reauth":false,"allow_user_retry":false,"debug_info":null,"query_path":null,"fbtrace_id":"..."}}

The debug log doesn't have the mqtt stuff but whatever, this http stuff might be enough.

Looks like a classic wrong-time-to-disconnect issue.

note to self, ~/test/gits/purple-facebook/ticket259.{log,rpt}