Description of problem:
When running XFree on a Dell D505 laptop with the 855GM chipset, the X
server process hangs upon startup shortly after activating the
graphics card. Running 'strace' on the 'X' process reveals it waiting
in the vm86old system call. If I kill the process with a signal
(pretty much any severe signal seems to do the trick eg SEGV), it
breaks out of this system call & carries on with startup & appears to
operate normally. Looking at the XFree86 logs shows 


(EE) I810(0): vm86() syscall generated signal 11.
(II) I810(0): EAX=0x00003000, EBX=0x000032e2, ECX=0x0000dc00,
EDX=0x000003c9
(II) I810(0): ESP=0x00000fac, EBP=0x00000fdc, ESI=0x00000000,
EDI=0x00000000
(II) I810(0): CS=0xc000, SS=0x0100, DS=0x0000, ES=0x0000, FS=0x0000,
GS=0x0000
(II) I810(0): EIP=0x00004ad5, EFLAGS=0x00023246
(II) I810(0): code at 0x000c4ad5:
 5a 58 c3 66 51 eb 22 66 51 b5 80 eb 1c 66 51 b5
 81 eb 16 66 51 b5 82 eb 10 66 51 b5 00 eb 0a 66
(II) stack at 0x00001fac:
 46 fc 01 30 2d 30 01 00 c9 51 54 0d 00 00 00 00
 00 20 f2 1f 01 00 01 03 03 00 7b 20 a4 42 09 20
 46 1f ff 1e 00 00 03 50 10 00 00 00 08 00 00 0f
 40 00 00 00 00 00 00 20 00 00 00 00 00 00 00 00
 00 00 01 00 00 00 01 03 00 00 64 5f 00 00 00 06
 00 00 00 32

before it carries on with the rest of XFree startup normally.

This seems to be the same problem reported here:

  http://www.mail-archive.com/devel@xfree86.org/msg05518.html

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Run 'redhat-config-xfree86' on a newly installed Dell D505 with
RHEL 3 AS.
2.
3.
  
Actual results:
Hangs shortly after activating the graphics card.

Expected results:


Additional info:

I will attach the XFree logs, and system message logs.