[Bug 357908] Re: [i965] X hang with EXA while scrolling in firefox

[Bryce Harrington]

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Importance: Undecided => High

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: New => Triaged

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  Was scrolling quickly in firefox on hiveminder.com when X hung. No
  compiz or other compositing wm in place.
  
  Attaching gdb backtrace.
  
  ProblemType: Bug
  Architecture: amd64
  DistroRelease: Ubuntu 9.04
  Package: xserver-xorg-video-intel 2:2.6.3-0ubuntu8
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersion: Linux version 2.6.28-11-generic (buildd at crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #40-Ubuntu SMP Fri Apr 3 17:39:41 UTC 2009
  SourcePackage: xserver-xorg-video-intel
  Uname: Linux 2.6.28-11-generic x86_64
- Xrandr:
-  
- glxinfo:
-  
- setxkbmap:
-  
- xdpyinfo:
-  
- xkbcomp:
+ 
+ (gdb) bt full
+ #0  0x00007f5f83976cd7 in ioctl () from /lib/libc.so.6
+ #1  0x00007f5f81f94343 in drmIoctl () from /usr/lib/libdrm.so.2
+ #2  0x00007f5f81f945cb in drmCommandWrite () from /usr/lib/libdrm.so.2
+ #3  0x00007f5f81b06528 in I830Sync (pScrn=0x1aa4560) at ../../src/i830_accel.c:214
+ 	emit = {irq_seq = 0x7fff8dd9ad00}
+ 	wait = {irq_seq = 1869161}
+ 	ret = -4
+ 	pI830 = (I830Ptr) 0x1aa6930
+ #4  0x00007f5f812a9e6c in exaWaitSync (pScreen=0x1ad7410) at ../../exa/exa.c:1065
+ #5  0x00007f5f812ab0a1 in ExaDoPrepareAccess (pDrawable=0xac2ea20, index=0) at ../../exa/exa.c:509
+ 	pExaScr = (ExaScreenPrivPtr) 0x1addb00
+ 	pPixmap = (PixmapPtr) 0xac2ea20
+ 	offscreen = 1
+ #6  0x00007f5f812afd99 in exaCopyDirty (migrate=0x7fff8dd9b028, pValidDst=0x51a8df0, pValidSrc=<value optimized out>, 
+     transfer=0, fallback_src=0xac2ea60 "O\017", fallback_dst=0x7f5f7fd58d40 "", fallback_srcpitch=32, 
+     fallback_dstpitch=64, fallback_index=0, sync=0x7f5f812a9e80 <exaMarkSync>) at ../../exa/exa_migration.c:218
+ 	pPixmap = (PixmapPtr) 0xac2ea20
+ 	pExaPixmap = (ExaPixmapPrivPtr) 0x51a8da0
+ 	CopyReg = {extents = {x1 = 0, y1 = 0, x2 = 8, y2 = 9}, data = 0x0}
+ 	save_offscreen = 0
+ 	save_pitch = 32
+ 	pBox = (BoxPtr) 0x7fff8dd9adf0
+ 	nbox = 0
+ 	access_prepared = 0
+ 	need_sync = 0
+ 	__func__ = "exaCopyDirty"
+ 	firsttime = 0
+ #7  0x00007f5f812b029d in exaDoMoveInPixmap (migrate=0x7fff8dd9b028) at ../../exa/exa_migration.c:274
+ 	pPixmap = (PixmapPtr) 0xac2ea20
+ 	pScreen = (ScreenPtr) 0x1ad7410
+ #8  0x00007f5f812b0a8f in exaDoMigration (pixmaps=0x7fff8dd9b010, npixmaps=2, can_accel=1)
+     at ../../exa/exa_migration.c:683
+ 	pExaScr = (ExaScreenPrivPtr) 0x1addb00
+ 	i = 2
+ 	__func__ = "exaDoMigration"

-- 
[i965] X hang with EXA while scrolling in firefox
https://bugs.launchpad.net/bugs/357908
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