Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[mrnobody2k]

I installed aMule from the provided rpm under SuSE 9.1 (i used the SuSE 9.0 rpm). After all part fils have been loaded aMule crashed always with the same error.

Code: [Select]

#0  0x411964b1 in strlen () from /lib/libc.so.6
#1  0x4028bce5 in wxTextCtrl::WriteText () from /usr/lib/libwx_gtk2-2.4.so.0
#2  0x402898e7 in wxTextCtrl::AppendText () from /usr/lib/libwx_gtk2-2.4.so.0
#3  0x081db3c4 in CamuleDlg::AddServerMessageLine ()
#4  0x081afd28 in CServerSocket::ProcessPacket ()
#5  0x081b07d0 in CServerSocket::PacketReceived ()
#6  0x080d729d in CEMSocket::OnReceive ()
#7  0x081b08d3 in CServerSocket::OnReceive ()
#8  0x402f0213 in wxEvtHandler::SearchEventTable () from /usr/lib/libwx_gtk2-2.4.so.0
#9  0x402f03a3 in wxEvtHandler::ProcessEvent () from /usr/lib/libwx_gtk2-2.4.so.0
#10 0x402f4136 in wxEvtHandler::ProcessPendingEvents () from /usr/lib/libwx_gtk2-2.4.so.0
#11 0x4029c4b1 in wxAppBase::ProcessPendingEvents () from /usr/lib/libwx_gtk2-2.4.so.0
#12 0x4023c7b2 in wxApp::OnIdle () from /usr/lib/libwx_gtk2-2.4.so.0
#13 0x402f0213 in wxEvtHandler::SearchEventTable () from /usr/lib/libwx_gtk2-2.4.so.0
#14 0x402f03a3 in wxEvtHandler::ProcessEvent () from /usr/lib/libwx_gtk2-2.4.so.0
#15 0x4023c86d in wxApp::ProcessIdle () from /usr/lib/libwx_gtk2-2.4.so.0
#16 0x4023c59a in wxapp_idle_callback () from /usr/lib/libwx_gtk2-2.4.so.0
#17 0x408bab81 in g_idle_dispatch () from /opt/gnome/lib/libglib-2.0.so.0
#18 0x408bc9ca in g_main_context_dispatch () from /opt/gnome/lib/libglib-2.0.so.0
#19 0x408beadb in g_main_context_iterate () from /opt/gnome/lib/libglib-2.0.so.0
#20 0x408bed07 in g_main_loop_run () from /opt/gnome/lib/libglib-2.0.so.0
#21 0x405e811f in gtk_main () from /opt/gnome/lib/libgtk-x11-2.0.so.0
#22 0x088150a8 in ?? ()
#23 0xbffff490 in ?? ()
#24 0x4000b11c in fixup () from /lib/ld-linux.so.2
Previous frame inner to this frame (corrupt stack?)

I hope someone could fix this issue soon.
Regards,

Mr Nobody

[deltaHF]

u use wxgtk linked against gtk2 .. look at my sig, installation howto and get the right wxgtk and wxbase rpms (uninstall the wxgtk2 before).. then reinstall amule

greets

[Avi]

Question, how having wxWidgets compiled against GTK2 should affect the following function (which, as the backtrace says, causes the crash):

Code: [Select]

void CamuleDlg::AddServerMessageLine(char* line,...)
{
wxString content;
va_list argptr;
char bufferline[500];
va_start(argptr, line);
vsnprintf(bufferline, 500, line, argptr);
va_end(argptr);

wxTextCtrl* cv=(wxTextCtrl*)serverwnd->FindWindowById(ID_SERVERINFO);

if(cv) {
cv->AppendText(wxString(bufferline)+wxString("\n"));
cv->ShowPosition(cv->GetValue().Length()-1);
}
//serverwnd.servermsgbox.AppendText(CString(bufferline)+CString("\n"));
}
The exact line which seems to cause the crash is:

Code: [Select]

cv->AppendText(wxString(bufferline)+wxString("\n"));
Maybe the following will fix it?

Code: [Select]

if(cv) {
                wxString toAdd=wxString(bufferline)+wxString(wxT('\n'));
cv->AppendText(toAdd);
cv->ShowPosition(cv->GetValue().Length()-1);
}
I think it will fix it... but am not sure... Any feedback from devs?
Also, mrnobody2k, could you try to make these changes (lines 676-692 in amuleDlg.cpp), and try to run it again?

[deltaHF]

easy, gtk2 isn't supported

[Xaignar]

We generally don't support wxGTK 2.4 linked against GTK2 simply because there are so many strange bugs.

However, because of the simple backtrace I'm not sure that your fix will work. If the pointer was null, then I'd expect a crash in wxTextCtrl::SetInsertionPointEnd(), which is called before wxTextCtrl::WriteText() in wxTextCtrl::AppendText() and which accesses member variables.

Therefore it is indeed possible that the crash is due to a bug caused by wxGTK being linked against GTK2. Still, it'd be interesting to see if your fix cures it.

Cheers,
 Xaignar