| Summary: | 1.9RC5 server crash when starting GLX 1.3 app with mesa 7.8 Intel dri2 driver. | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Christopher James Halse Rogers <chalserogers> |
| Component: | Drivers/DRI/i965 | Assignee: | Kristian Høgsberg <krh> |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | cousinmarc |
| Version: | git | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Bug Depends on: | |||
| Bug Blocks: | 27592 | ||
| Attachments: | The fix. | ||
Same crash with mesa 7.8.2 Created attachment 37123 [details] [review] The fix. Kristian, I got Ian's ack that this is okay to go into 7.8 on the priviso that you are happy with this band-aid. Shouldn't this also be fixed in the X server? Although I couldn't see how to fix it in there, so possibly not. (In reply to comment #3) > Kristian, I got Ian's ack that this is okay to go into 7.8 on the priviso that > you are happy with this band-aid. Yeah, it's fine for 7.8. hi, I've been having what seems to be the same bug : http://bugs.archlinux.org/task/20596 I tried this patch, which resolves the crashing. But instead, the display is extremely corrupted. Is there any information I could provide to help ? |
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The 1.9 RC5 server crashes when starting a GLX 1.3 app (I've tried glxgears_fbconfig or Clutter apps) with an older (I'm using mesa 7.8.1) Intel dri2 driver. Compiz works fine, as does glxgears and other, non GLX 1.3 apps. It seems that DRI2InvalidateDrawable is being called before the drawable is associated with a context, as in all the crashes I've seen drawable->driContextPriv is a valid pointer to a 0-initialised structure. This does not occur with the Intel driver from mesa master. This backtrace is from running glxgears_fbconfig, which has died at glXSwapBuffers. Different Clutter apps die with a different backtrace, but they all terminate in the DRI2InvalidateDrawable → intelDRI2Invalidate pair, with a 0-initialised drawable->driContextPriv. #0 0x00007f1c89c1ff18 in intelDRI2Invalidate (drawable=0x35a4fb0) at intel_screen.c:122 No locals. #1 0x00007f1c8aee1866 in __glXDRIinvalidateBuffers (pDraw=0x36211b0, priv=0x39ae970) at ../../glx/glxdri2.c:439 private = 0x39ae970 screen = 0x3014f30 #2 0x00007f1c8a86778f in DRI2InvalidateDrawable (pDraw=0x36211b0) at ../../../../hw/xfree86/dri2/dri2.c:538 pPriv = 0x34bd850 ref = 0x3989f90 #3 0x00007f1c8a86823f in DRI2SwapBuffers (client=0x3491ae0, pDraw=0x36211b0, target_msc=0, divisor=0, remainder=0, swap_target=0x7fff48a94a48, func=0x7f1c8a8697da <DRI2SwapEvent>, data=0x36211b0) at ../../../../hw/xfree86/dri2/dri2.c:866 pScreen = 0x148e470 ds = 0x148e810 pPriv = 0x34bd850 pDestBuffer = 0x354e1c0 pSrcBuffer = 0x354dd50 ret = 1 i = 3 ust = 1279249062597795 current_msc = 570912 __func__ = "DRI2SwapBuffers" #4 0x00007f1c8a869980 in ProcDRI2SwapBuffers (client=0x3491ae0) at ../../../../hw/xfree86/dri2/dri2ext.c:404 stuff = 0x3996aa0 rep = {type = 116 't', pad1 = 74 'J', sequenceNumber = 18601, length = 32767, swap_hi = 59532288, swap_lo = 0, pad2 = 60385952, pad3 = 0, pad4 = 1219054196, pad5 = 32767} pDrawable = 0x36211b0 target_msc = 0 divisor = 0 remainder = 0 swap_target = 1 status = 0 #5 0x00007f1c8a869ea3 in ProcDRI2Dispatch (client=0x3491ae0) at ../../../../hw/xfree86/dri2/dri2ext.c:570 stuff = 0x3996aa0 #6 0x0000000000452970 in Dispatch () at ../../dix/dispatch.c:432 clientReady = 0x3427a80 result = 0 client = 0x3491ae0 nready = 0 icheck = 0x886110 start_tick = 1060 #7 0x0000000000425b90 in main (argc=8, argv=0x7fff48a94c48, envp=0x7fff48a94c90) at ../../dix/main.c:291 i = 1 alwaysCheckForInput = {0, 1} (gdb) print *drawable $18 = {hHWDrawable = 0, driverPrivate = 0x39414f0, loaderPrivate = 0x39ae970, refcount = 1, index = 0, pStamp = 0x35a503c, lastStamp = 0, x = 0, y = 0, w = 0, h = 0, numClipRects = 0, pClipRects = 0x35a5040, backX = 720907, backY = 131073, backClipRectType = 327690, numBackClipRects = 0, pBackClipRects = 0x35a5040, vblSeq = 0, vblFlags = 0, vblank_base = 5910978805956615, msc_base = 0, driContextPriv = 0x3015b48, driScreenPriv = 0x3015a50, swap_interval = 4294967295, dri2 = {stamp = 1, clipRect = {x1 = 160, y1 = 0, x2 = 0, y2 = 0}}} (gdb) print *drawable->driContextPriv $19 = {hHWContext = 0, driverPrivate = 0x0, pctx = 0x0, driDrawablePriv = 0x0, driReadablePriv = 0x0, driScreenPriv = 0x0, loaderPrivate = 0x0, dri2 = { draw_stamp = 0, read_stamp = 0}}