#1634 NORM Untriag: X segfault from LXStopVideo

[Zarro Boogs per Child]

#1634: X segfault from LXStopVideo
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  Reporter:  dcbw    |       Owner:  jg       
      Type:  defect  |      Status:  new      
  Priority:  normal  |   Milestone:  Untriaged
 Component:  distro  |     Version:           
Resolution:          |    Keywords:           
  Verified:  0       |  
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Comment (by dcbw):

 `Program received signal SIGSEGV, Segmentation fault.
 0xb7c0dff2 in exaOffscreenFree (pScreen=0x81e8108, area=0x82cc808) at
 exa_offscreen.c:358
 358         if (next && next->state == ExaOffscreenAvail)
 (gdb) t a a bt
 (gdb) bt
 #0  0xb7c0dff2 in exaOffscreenFree (pScreen=0x81e8108, area=0x82cc808) at
 exa_offscreen.c:358
 #1  0xb7c6e0a6 in LXStopVideo (pScrni=0x81e5b90, data=0x81eb9a4, exit=1)
 at amd_lx_video.c:610
 #2  0x080b8583 in xf86XVLeaveVT (index=0, flags=0) at xf86xv.c:1252
 #3  0x080bba08 in xf86Wakeup (blockData=0x0, err=1, pReadmask=0x81d78c0)
 at xf86Events.c:1527
 #4  0x08082519 in WakeupHandler (result=1, pReadmask=0x81d78c0) at
 dixutils.c:469
 #5  0x0814c878 in WaitForSomething (pClientsReady=0xbfaf98e0) at
 WaitFor.c:231
 #6  0x0807f00f in Dispatch () at dispatch.c:383
 #7  0x0806c48a in main (argc=4, argv=0xbfaf9e94, envp=Cannot access memory
 at address 0xb5bae008
 ) at main.c:444
 (gdb) print next
 $1 = (ExaOffscreenArea *) 0x7463612d
 (gdb) print *next
 Cannot access memory at address 0x7463612d
 (gdb) list 350
 345         area->save = NULL;
 346         area->score = 0;
 347         /*
 348          * Find previous area
 349          */
 350         if (area == pExaScr->info->offScreenAreas)
 351             prev = NULL;
 352         else
 353             for (prev = pExaScr->info->offScreenAreas; prev; prev =
 prev->next)
 354                 if (prev->next == area)
 (gdb) print *area
 $2 = {base_offset = 1634170227, offset = 1667313010, size = 1769367924,
 score = 0, privData = 0x6f746361, save = 0, state = ExaOffscreenAvail,
   next = 0x7463612d}
 `

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Ticket URL: <http://dev.laptop.org/ticket/1634#comment:1>
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