[Bug 31414] New: X crashes when editing a photo in GIMP

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31414

           Summary: X crashes when editing a photo in GIMP
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: honza.stodola at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=40068)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40068)
Xorg log

Hi,
an attempt to edit photos in GIMP often ends with X server crash:

Backtrace:
[  4733.875] 0: /usr/bin/X (xorg_backtrace+0x28) [0x4a2868]
[  4733.875] 1: /usr/bin/X (0x400000+0x63999) [0x463999]
[  4733.875] 2: /lib/libpthread.so.0 (0x7f35f86d5000+0xf470) [0x7f35f86e4470]
[  4733.875] 3: /usr/lib64/xorg/modules/drivers/radeon_drv.so
(0x7f35f57ed000+0xc62dd) [0x7f35f58b32dd]
[  4733.875] 4: /usr/lib64/xorg/modules/libexa.so (0x7f35f51a9000+0xfd62)
[0x7f35f51b8d62]
[  4733.875] 5: /usr/lib64/xorg/modules/libexa.so (0x7f35f51a9000+0x1073e)
[0x7f35f51b973e]
[  4733.875] 6: /usr/bin/X (0x400000+0xd86a3) [0x4d86a3]
[  4733.875] 7: /usr/lib64/xorg/modules/libexa.so (0x7f35f51a9000+0x117e8)
[0x7f35f51ba7e8]
[  4733.875] 8: /usr/bin/X (0x400000+0xd3a21) [0x4d3a21]
[  4733.875] 9: /usr/bin/X (0x400000+0x30881) [0x430881]
[  4733.875] 10: /usr/bin/X (0x400000+0x2498e) [0x42498e]
[  4733.875] 11: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7f35f78b3cdd]
[  4733.875] 12: /usr/bin/X (0x400000+0x24539) [0x424539]
[  4733.875] Segmentation fault at address 0x4
[  4733.875] 
Fatal server error:
[  4733.875] Caught signal 11 (Segmentation fault). Server aborting

Components and versions:
distribution: gentoo
kernel: 2.6.36-gentoo
xorg-server-1.9.2
xf86-video-ati - git 2a7b080727f61559cf8444c93a5088f4155a8fdf
GIMP: 2.6.10
HW: ATI 5770: 
01:00.0 VGA compatible controller: ATI Technologies Inc Juniper [Radeon HD 5700
Series]

Steps to reproduce:
1. open a photo (4288x2848 pixels) in GIMP
2. zoom in and out repeatedly, X server usually crashes within a few seconds

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