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[Bug 358865] New: memory corruption in Xvnc, prevents vnc installation
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Tue, 5 Feb 2008 08:12:36 -0700 (MST)
  • Message-id: <bug-358865-21960@xxxxxxxxxxxxxxxxxxxxxxxxx/>
https://bugzilla.novell.com/show_bug.cgi?id=358865


Summary: memory corruption in Xvnc, prevents vnc installation
Product: openSUSE 11.0
Version: Alpha 1
Platform: PowerPC
OS/Version: Linux
Status: NEW
Severity: Normal
Priority: P5 - None
Component: X.Org
AssignedTo: sndirsch@xxxxxxxxxx
ReportedBy: olh@xxxxxxxxxx
QAContact: xorg-maintainer-bugs@xxxxxxxxxxxxxxxxxxxxxx
CC: power-bugs@xxxxxxxxxxxxxxxxxxxxxx
Found By: ---


11.0a1 and also current factory fails with vnc install.
As soon as one connects to the server, the Xvnc process gets terminated by
glibc malloc checker.
sometimes Xvnc gets aborted right away after connect. sometimes a corrupted
screen is displayed, then Xvnc is terminated.
A quick test on i386 factory shows that vnc seems to work there.

I dont have a better backtrace at the moment, due to lack of related
-debuginfo.rpm in the inst-sys.

Program received signal SIGABRT, Aborted.
[Switching to Thread 0xf7ff4000 (LWP 2702)]
0x0f85dddc in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0 0x0f85dddc in *__GI_raise (sig=6) at
./nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x0f85f7d8 in *__GI_abort () at abort.c:88
#2 0x0f89c098 in __libc_message (do_abort=2, fmt=0xf965880 "*** glibc detected
*** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#3 0x0f8a33c0 in malloc_printerr (action=3, str=0xf965a54 "double free or
corruption (!prev)", ptr=<value optimized out>) at malloc.c:5891
#4 0x0f8a5878 in *__GI___libc_free (mem=0x1059f430) at malloc.c:3626
#5 0x1005db48 in rfbTranslateNone ()
#6 0x10057c78 in ?? ()
#7 0x10059610 in ?? ()
#8 0x10059c68 in rfbSendRectEncodingTight ()
#9 0x10059d10 in rfbSendRectEncodingTight ()
#10 0x1004adc8 in rfbSendFramebufferUpdate ()
#11 0x1004cbd8 in rfbProcessClientMessage ()
#12 0x1005557c in rfbCheckFds ()
#13 0x1004761c in ?? ()
#14 0x100777c8 in WakeupHandler ()
#15 0x103a1434 in WaitForSomething ()
#16 0x100729f8 in Dispatch ()
#17 0x1008a784 in main ()
(gdb)


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