#11621 HIGH 1.75-so: SISUSB VGA adapter fails to initialize on 1.75

[Zarro Boogs per Child]

#11621: SISUSB VGA adapter fails to initialize on 1.75
-----------------------------+----------------------------------------------
 Reporter:  greenfeld        |                 Owner:  jnettlet                         
     Type:  defect           |                Status:  new                              
 Priority:  high             |             Milestone:  1.75-software                    
Component:  x window system  |               Version:  Development build as of this date
 Keywords:                   |           Next_action:  diagnose                         
 Verified:  0                |   Deployment_affected:                                   
Blockedby:                   |              Blocking:                                   
-----------------------------+----------------------------------------------
 1. Attach an SISUSB-using USB VGA adapter to an XO-1.75, and fully reboot
 said XO (to force the SISUSB xorg.conf file to be used).
  2. The X server will die during initialization with a segmentation fault.

 Seen with 11.3.1 os27.

 {{{
 [   760.294] (EE) dovefb(0): mrvlFencePoolStall:sync marker timeout, wait
 263, real 262
 [   760.368] (EE) dovefb(0): mrvlFencePoolStall:sync marker timeout, wait
 263, real 262
 [   760.458] (EE) dovefb(0): mrvlFencePoolStall:sync marker timeout, wait
 267, real 266
 [   760.536] (EE) dovefb(0): mrvlFencePoolStall:sync marker timeout, wait
 267, real 266
 [   760.612] (EE) dovefb(0): mrvlFencePoolStall:sync marker timeout, wait
 267, real 266
 [   760.686] (EE) dovefb(0): mrvlFencePoolStall:sync marker timeout, wait
 267, real 266
 [   760.702]
 Backtrace:
 [   760.703] 0: X (xorg_backtrace+0x2c) [0xa2f94]
 [   760.704] 1: X (0x8000+0x5afec) [0x62fec]
 [   760.704] 2: /lib/libc.so.6 (__default_rt_sa_restorer_v2+0x0)
 [0x40368820]
 [   760.704] 3: /lib/libc.so.6 (0x4033c000+0x6e128) [0x403aa128]
 [   760.704] 4: /lib/libc.so.6 (__libc_malloc+0x7c) [0x403acdc0]
 [   760.704] 5: /lib/libc.so.6 (0x4033c000+0x65a74) [0x403a1a74]
 [   760.704] 6: /lib/libc.so.6 (0x4033c000+0x6d564) [0x403a9564]
 [   760.704] 7: X (RegionValidate+0xcbc) [0x49048]
 [   760.705] 8: X (RegionFromRects+0x22c) [0x49a98]
 [   760.705] 9: /usr/lib/xorg/modules/libexa.so (0x40635000+0xae94)
 [0x4063fe94]
 [   760.705] 10: X (0x8000+0xd2efc) [0xdaefc]
 [   760.705] 11: X (0x8000+0x166800) [0x16e800]
 [   760.705] 12: X (miCompositeRects+0x78) [0x16e8e0]
 [   760.705] 13: X (CompositeRects+0x7c) [0xcf6f0]
 [   760.705] 14: X (0x8000+0xcb8f4) [0xd38f4]
 [   760.706] 15: X (0x8000+0xc7c98) [0xcfc98]
 [   760.706] 16: X (0x8000+0x26cd0) [0x2ecd0]
 [   760.706] 17: X (0x8000+0x1b558) [0x23558]
 [   760.706] 18: /lib/libc.so.6 (__libc_start_main+0x118) [0x403516fc]
 [   760.706] Segmentation fault at address 0x7
 [   760.706]
 Fatal server error:
 [   760.706] Caught signal 11 (Segmentation fault). Server aborting
 }}}

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Ticket URL: <http://dev.laptop.org/ticket/11621>
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