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Re: nearly all postinstall scripts segfaulting in 64bit Windows (XP + Vista)
Lonni J Friedman wrote:
On Thu, Nov 20, 2008 at 3:40 PM, Lonni J Friedman wrote:
I'm attempting to setup a build environment, which happens to require
cygwin. I ran into no problems getting this up with 32bit Windows XP,
however for both WINXP64 and VISTA64, the cygwin installation blows up
badly while running all of the postinstall scripts (in
/etc/postinstall). Nearly all of them are segfaulting.
For example, if I attempt to run /etc/postinstall/bash.sh manually, it
churns for a few seconds, and then dies with the following output:
11 [main] bash 1644 +_cygtls::handle_exceptions: Error while dumping
state ( probably a corrupted stack)
Segmentation fault (core dumped)
The only potential oddity in this equation is that my Windows (both 32
& 64bit) installations are inside of Xen (running on a Linux system).
I'm at a complete loss on how to debug this at this point. Any and
all suggestions are gratefully accepted.
No suggestions? Anyway, it also looks like I'm getting a stackdump
every dump this segfaults which includs the following:
Exception: STATUS_ACCESS_VIOLATION at eip=7D61C95D
eax=00000000 ebx=0022C4D8 ecx=00000000 edx=00000000 esi=FFFFFFFE edi=FFFFFFFF
ebp=0022C4A8 esp=0022C45C program=C:\cygwin\bin\bash.exe, pid 924, thread main
cs=0023 ds=002B es=002B fs=0053 gs=002B ss=002B
Frame Function Args
0022C4A8 7D61C95D (00000274, FFFFFFFE, 0022C4D8, 00000001)
61169E30 6101CDEB (0000000F, 80100000, 00000274, 00000000)
6113F9B8 0000044F (610FE560, 610FE530, 610FDB40, 6101E4A0)
610FE950 610FDB70 (90909090, 90909090, 90C3C031, 90909090)
11 [main] bash 924 _cygtls::handle_exceptions: Error while
dumping state (probably corrupted stack)
There's been one other report, that I recall, of problems running
Cygwin under Xen but AFAIK, no one on the list who's digging into
the code is using it (or at least seeing the problem when using it.)
Whatever the problem is, it seems specific to Xen since other VMs run
Cygwin fine. Certainly the stack suggests that the crash happens in
bash and not the Cygwin DLL, though I'm not sure that this says much.
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
216 Dalton Rd. (508) 893-9889 - FAX
Holliston, MA 01746
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