Comment 0 for bug 427712

Created an attachment (id=29412)
Viewport shading button

Pressing the "Viewport Shading" (see screenshot if it's not apparent which one) button in Blender causes instant segfault. Works fine in software mode.

I think this is a regression, so I might try a bisect when I have time.

#0 0x00000000 in ?? ()
No symbol table info available.
#1 0xb5d3638a in _swrast_ReadPixels (ctx=0x85, x=337, y=263, width=133,
    height=136, format=6408, type=5121, packing=0x8ef01fc, pixels=0xa054400)
    at swrast/s_readpix.c:605
        clippedPacking = {Alignment = 4, RowLength = 133, SkipPixels = 0,
          SkipRows = 0, ImageHeight = 0, SkipImages = 0, SwapBytes = 0 '\0',
          LsbFirst = 0 '\0', ClientStorage = 0 '\0', Invert = 0 '\0',
          BufferObj = 0x8eafd18}
#2 0xb5c116cf in intelReadPixels (ctx=0x8ee32d8, x=337, y=263, width=133,
    height=136, format=6408, type=5121, pack=0x8ef01fc, pixels=0xa054400)
    at intel_pixel_read.c:314
        __func__ = "intelReadPixels"
#3 0xb5caff36 in _mesa_ReadPixels (x=337, y=263, width=133, height=136,
    format=6408, type=5121, pixels=0xa054400) at main/readpix.c:208
        ctx = 0x8ee32d8

System environment:
-- chipset: G45 / ICH10R
-- system architecture: 32-bit
-- Linux distribution: Debian unstable
-- Machine or mobo model: Asus P5Q-EM
-- Display connector: DVI
-- KMS: enabled
-- xf86-video-intel: efbcf29dd1a1ca058b7a2a93f0685102c06c9369
-- xserver: 1.6.3
-- mesa: 7c0152fbaeb21ab423a9de339b85c54d1713432b
-- drm: 67e4172394a88d4922fb8d9c7c3d96ce7e02c5a6
-- kernel: 2.6.31-rc9