[Bug 72716] SIGBUS in EVERGREENUploadToScreen after hibernation (Linux 3.12.4-tuxonice)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Jan 25 12:20:19 PST 2014


--- Comment #12 from Michael Meeks <michael.meeks at collabora.com> ---
I don't want to tangle this bug completely; but I get something similar, 100%
reproducibly; my sin being just to login under XFCE, or to launch an app under
gnome-shell ;-)

Program received signal SIGBUS, Bus error.
0xb7274907 in memcpy () from /lib/libc.so.6
(gdb) bt
#0  0xb7274907 in memcpy () from /lib/libc.so.6
#1  0xb6cc0b97 in memcpy (__len=7680, __src=0xb41b6008, __dest=0xb377c000) at
#2  EVERGREENUploadToScreen (pDst=pDst at entry=0xa5689c0, x=0, y=y at entry=0,
w=1920, h=1200, 
src_pitch=7680) at evergreen_exa.c:1721
#3  0xb6c7c506 in exaCopyDirty (migrate=migrate at entry=0xbfdd50a0,
pValidDst=pValidDst at entry=0xa568a34, pValidSrc=pValidSrc at entry=0xa568a28, 
    transfer=0xb6cc0820 <EVERGREENUploadToScreen>,
fallback_index=fallback_index at entry=0, sync=sync at entry=0x0) at
#4  0xb6c7c9e6 in exaCopyDirtyToFb (migrate=migrate at entry=0xbfdd50a0) at
#5  0xb6c7e92f in exaDoMigration_mixed (pixmaps=0xbfdd5090, npixmaps=2,
can_accel=1) at exa_migration_mixed.c:118
#6  0xb6c7b17f in exaDoMigration (pixmaps=pixmaps at entry=0xbfdd5090,
npixmaps=npixmaps at entry=2, can_accel=can_accel at entry=1) at exa.c:1134
#7  0xb6c81218 in exaFillRegionTiled (pDrawable=pDrawable at entry=0xa5b9f38,
pRegion=pRegion at entry=0xa6cce40, pTile=0xa5689c0, 
    pPatOrg=pPatOrg at entry=0xa207ce8, planemask=4294967295, alu=3,
clientClipType=0) at exa_accel.c:1124
#8  0xb6c81d58 in exaPolyFillRect (pDrawable=0xa5b9f38, pGC=0xa207cc0, nrect=1,
prect=0xa5daff0) at exa_accel.c:821
#9  0x08163a67 in damagePolyFillRect (pDrawable=0xa5b9f38, pGC=0xa207cc0,
nRects=1, pRects=0xa5daff0) at damage.c:1254
#10 0x081bffa8 in miPaintWindow (pWin=<optimized out>, pWin at entry=0xa5b9f38,

I wonder if it could be related, very happy to help debug/test patches etc. as
I say it's very easy to reproduce, no suspend/resume required =)

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