http://bugs.freedesktop.org/show_bug.cgi?id=16703
Summary: Closing OpenGL application crashes whole Xserver.
Product: DRI
Version: XOrg CVS
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: libglx
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
While closing some 3D application - Xorg server goes down with the application
as well. I'm using Fedora rawhide, Intel graphics.
Here is backtrace from the gdb.
Program received signal SIGSEGV, Segmentation fault.
__glXDeassociateContext (glxc=0x9fed80) at glxutil.c:80
80 ; prev = curr, curr = curr->nextDrawPriv ) {
(gdb) bt
#0 __glXDeassociateContext (glxc=0x9fed80) at glxutil.c:80
#1 0x00007f8767c3863f in __glXContextDestroy (context=0x11628c0)
at glxcmds.c:151
#2 0x00007f8767c44712 in __glXDRIcontextDestroy (baseContext=0x9fed80)
at glxdri.c:304
#3 0x00007f8767c3a7e2 in __glXFreeContext (cx=0x9fed80) at glxext.c:140
#4 0x00007f8767c3a823 in ContextGone (cx=0x11628c0, id=1161030104)
at glxext.c:98
#5 0x000000000042ea45 in FreeResourceByType (id=8388609, type=52, skipFree=0)
at resource.c:597
#6 0x00007f8767c3712e in __glXDisp_DestroyContext (cl=<value optimized out>,
pc=<value optimized out>) at glxcmds.c:338
#7 0x00007f8767c3aaf2 in __glXDispatch (client=0xc93530) at glxext.c:492
#8 0x00000000004467d4 in Dispatch () at dispatch.c:454
#9 0x000000000042cc4d in main (argc=3, argv=0x7fff702c7588,
envp=<value optimized out>) at main.c:441
(gdb) print curr
$1 = (__GLXcontext *) 0xa0000000a
Obviously invalid address.
(gdb) print *glxc
$4 = {destroy = 0x7f8767c446d0 <__glXDRIcontextDestroy>,
makeCurrent = 0x7f8767c42b60 <__glXDRIcontextMakeCurrent>,
loseCurrent = 0x7f8767c42b90 <__glXDRIcontextLoseCurrent>,
copy = 0x7f8767c42bb0 <__glXDRIcontextCopy>,
forceCurrent = 0x7f8767c42bd0 <__glXDRIcontextForceCurrent>,
textureFromPixmap = 0x7f8767e68ce0, last = 0x0, next = 0x0,
nextDrawPriv = 0x0, nextReadPriv = 0x0, config = 0xa6a050,
pGlxScreen = 0xa66620, id = 8388609, share_id = 0, screen = 0,
idExists = 0 '\0', isCurrent = 0 '\0', isDirect = 0 '\0',
hasUnflushedCommands = 0 '\0', renderMode = 7168, feedbackBuf = 0x0,
feedbackBufSize = 0, selectBuf = 0x0, selectBufSize = 0,
drawPriv = 0x11628c0, readPriv = 0x11628c0}
(gdb) print *glxc->drawPriv->drawGlxc
$7 = {destroy = 0xb000600060000, makeCurrent = 0x4e5f594c00000002,
loseCurrent = 0xda4f44, copy = 0xb000600060000,
forceCurrent = 0x654d004500000002, textureFromPixmap = 0xda4f78,
last = 0xb000600060000, next = 0x414e5f4800000002, nextDrawPriv = 0xda4fac,
nextReadPriv = 0xb000600060000, config = 0x5954535f00000002,
pGlxScreen = 0xda4fe0, id = 393216, share_id = 720902, screen = 2,
idExists = 80 'P', isCurrent = 79 'O', isDirect = 73 'I',
hasUnflushedCommands = 78 'N', renderMode = 14307348,
feedbackBuf = 0xb000600060000, feedbackBufSize = 2, selectBuf = 0xda5048,
selectBufSize = 393216, drawPriv = 0x4152455600000002, readPriv = 0xda507c}
(gdb) print glxc->drawPriv->drawGlxc->nextDrawPriv->nextDrawPriv
$9 = (__GLXcontext *) 0xa0000000a
(gdb) print *glxc->drawPriv->drawGlxc->nextDrawPriv
$10 = {destroy = 0, makeCurrent = 0xa0000000a, loseCurrent = 0xa, copy = 0,
forceCurrent = 0, textureFromPixmap = 0x0, last = 0x0, next = 0x0,
nextDrawPriv = 0xa0000000a, nextReadPriv = 0xa0000001f,
config = 0xa0000001f, pGlxScreen = 0xa, id = 0, share_id = 0, screen = 0,
idExists = 0 '\0', isCurrent = 0 '\0', isDirect = 0 '\0',
hasUnflushedCommands = 0 '\0', renderMode = 4, feedbackBuf = 0x500000005,
feedbackBufSize = 14, selectBuf = 0xf00000014, selectBufSize = 4,
drawPriv = 0x0, readPriv = 0x1200000000}
So this seems to be showing some weird place in the memory
Version-Release number of selected component (if applicable):
xorg-x11-server-Xorg-1.4.99.905-2.20080701.fc10.x86_64
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