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STR #3152
| Application: | FLTK Library |
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| Status: | 1 - Closed w/Resolution |
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| Priority: | 5 - Critical, e.g. nothing working at all |
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| Scope: | 3 - Applies to all machines and operating systems |
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| Subsystem: | Core Library |
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| Summary: | TigerVNC segfaults with FLTK 1.3.3 |
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| Version: | 1.3.3 |
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| Created By: | robotanarchy |
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| Assigned To: | AlbrechtS |
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| Fix Version: | 1.3.4 (SVN: v10434) |
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| Update Notification: | |
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Trouble Report Files:
No files
Trouble Report Comments:
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| #1 | robotanarchy
04:07 Nov 15, 2014 |
| I have upgraded from fltk 1.3.2 to 1.3.3 on Arch Linux x86_64, and suddenly the vncviewer crashes on successful connection.
I have also tried to recompile tigervnc against this fltk version, but it still segfaults.
In the TigerVNC bugtracker I was told, that this is a bug in FLTK, so I'm reporting it here, too.
Releated bugreports:
https://github.com/TigerVNC/tigervnc/issues/72
https://bugs.archlinux.org/task/42795
Backtrace from the crash:
#0 0x00007ffff75c2847 in XRootWindow () from /usr/lib/libX11.so.6
#1 0x00007ffff797410c in Fl_X::ewmh_supported() () from /usr/lib/libfltk.so.1.3
#2 0x00007ffff791694e in Fl::focus(Fl_Widget*) () from /usr/lib/libfltk.so.1.3
#3 0x00007ffff796b259 in Fl_Widget::take_focus() () from /usr/lib/libfltk.so.1.3
#4 0x00007ffff7978046 in ?? () from /usr/lib/libfltk.so.1.3
#5 0x00007ffff7978625 in fl_password(char const*, char const*, ...) () from /usr/lib/libfltk.so.1.3
#6 0x00000000004245e0 in UserDialog::getUserPasswd(char**, char**) ()
#7 0x000000000045ce80 in rfb::CSecurityVncAuth::processMsg(rfb::CConnection*) ()
#8 0x000000000042deb9 in rfb::CConnection::processSecurityMsg() ()
#9 0x000000000042e1da in rfb::CConnection::processSecurityTypesMsg() ()
#10 0x0000000000420360 in CConn::socketEvent(int, void*) ()
#11 0x00007ffff7973ffc in ?? () from /usr/lib/libfltk.so.1.3
#12 0x00007ffff79176ee in Fl::wait(double) () from /usr/lib/libfltk.so.1.3
#13 0x000000000041f0b6 in main () | |
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| #2 | AlbrechtS
07:55 Nov 15, 2014 |
| Thanks for the report. This may be fixed already in the subversion repository.
Can you please try using current svn (see download page) or apply the following small patch?
$ svn diff -c 10434
Index: src/Fl_x.cxx
===================================================================
--- src/Fl_x.cxx (revision 10433)
+++ src/Fl_x.cxx (revision 10434)
@@ -2211,6 +2211,7 @@
static int result = -1;
if (result == -1) {
+ fl_open_display();
result = 0;
unsigned long nitems;
unsigned long *words = 0;
Please report back if this fixes the issue for you. | |
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| #3 | jjacky
13:31 Nov 15, 2014 |
| So I've hit the same issue, and compiling FLTK 1.3.3 with the patch above did fix it indeed; thanks. | |
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| #4 | robotanarchy
10:09 Nov 19, 2014 |
| The Arch Linux maintainer has built fltk-1.3.3-3 with the patch above (it is currently in testing), I have installed it and it fixes the segfault!
Thanks AlbrechtS and jjacky :) | |
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| #5 | AlbrechtS
04:01 Nov 21, 2014 |
| Thanks for the feedback. The final fix will be in the next FLTK release (1.3.4).
Closed. | |
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