[xorg-bugzilla-noise] [Bug 418] New: X freezing during cursor drag

[bugzilla-daemon at pdx.freedesktop.org]

http://pdx.freedesktop.org/cgi-bin/bugzilla/show_bug.cgi?id=418

           Summary: X freezing during cursor drag
           Product: xorg
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Server/general
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: davidf at sjsoft.com


I've had X freezing every few hours or so, often when selecting a region of the
screen (using ksnapshot).
Reported on fedora bugzilla:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=120018
(using their xorg-x11-0.6.6-0.2004_03_30.1)
but reproducing here in case it is a relevant problem.

The applications are still running (but the local keyboard becomes disfunctional
until X is killed - curiously the mouse cursor still moves around the screen),
and so I can ssh in and get a backtrace from gdb:
#0  0x08b257d1 in ?? ()
#1  0x08b2620d in ?? ()
#2  0x08ba5856 in ?? ()
#3  0x08ba5291 in ?? ()
#4  0x08ba6502 in ?? ()
#5  0x08ba5103 in ?? ()
#6  0x0817231a in miFillUniqueSpanGroup ()
#7  0x0816fcf4 in miCleanupSpanData ()
#8  0x0817149a in miWideDash ()
#9  0x0816ba27 in miPolyRectangle ()
#10 0x0819638c in miSpritePolyRectangle ()
#11 0x080be6b3 in ProcPolyRectangle ()
#12 0x080bb5d2 in Dispatch ()
#13 0x080ce36c in main ()
#14 0x00b01eb3 in __libc_start_main () from /lib/tls/libc.so.6



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