Comment 3 for bug 416421

Created an attachment (id=29995)
Xorg.0.log with backrace

HW: ThinkPad X200s with gm45
SW: Kubuntu Karmic up-to-date + update mesa & intel 2.9.0 driver from x-updates PPA

I would like to report reproducible crash from Ubuntu bug 415357 (there is similar crash in bug 416421, but w/o reproduction instructions):
https://launchpad.net/bugs/415357
https://launchpad.net/bugs/416421

Bug is reproducible by performing the following steps:
1. Open Kolourpaint (KDE drawing program), and select the pen tool.
2. Start drawing some doodle by pressing the left button of your mouse
   _without releasing it_ for at least 30 secs (keep the cursor moving).
3. X crashes.

In Xorg.0.log, I get the following backtrace:

0: /usr/bin/X(xorg_backtrace+0x26) [0x4f0136]
1: /usr/bin/X(xf86SigHandler+0x41) [0x4850f1]
2: /lib/libc.so.6 [0x7ffcbef32530]
3: /usr/lib/xorg/modules//libfb.so(fbBresSolid+0x1d6) [0x7ffcbcced336]
4: /usr/lib/xorg/modules//libfb.so(fbSegment+0x282) [0x7ffcbccec4d2]
5: /usr/lib/xorg/modules//libfb.so(fbZeroLine+0xfd) [0x7ffcbcce90ad]
6: /usr/lib/xorg/modules/drivers//intel_drv.so(uxa_check_poly_lines+0x138) [0x7ffcbd775f38]
7: /usr/bin/X [0x539947]
8: /usr/bin/X(ProcPolyLine+0xe2) [0x44be82]
9: /usr/bin/X(Dispatch+0x384) [0x44e044]
10: /usr/bin/X(main+0x3b5) [0x433fa5]
11: /lib/libc.so.6(__libc_start_main+0xfd) [0x7ffcbef1dabd]
12: /usr/bin/X [0x433429]
Saw signal 11. Server aborting.