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Subject:	Re: XWin startup crash x86_64 Windows 10
To:	cygwin AT cygwin DOT com
References:	<000c01d19beb$41ff1130$c5fd3390$@tinet.cat>
Reply-To:	cygwin AT cygwin DOT com
Cc:	Sergio Gomez <sgj AT tinet DOT cat>
From:	Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Message-ID:	<571A330C.2000403@dronecode.org.uk>
Date:	Fri, 22 Apr 2016 15:19:56 +0100
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In-Reply-To:	<000c01d19beb$41ff1130$c5fd3390$@tinet.cat>

On 21/04/2016 17:31, Sergio Gomez wrote:
> Hi,

Thanks for reporting this problem.

> After a fresh installation of Cygwin x86_64 in a Windows 10 machine, XWin
> crashes during startup (rest of Cygwin seems OK). Here is the backtrace:
[...]
> (gdb) r
> Starting program: /usr/bin/XWin -multiwindow
> [New Thread 10320.0xd2c]
> [New Thread 10320.0x2370]
> [New Thread 10320.0x280]
> [New Thread 10320.0x243c]
> [New Thread 10320.0x1050]
> gdb: unknown target exception 0x80000001 at 0x180071a71

This is STATUS_GUARD_PAGE_VIOLATION

> Program received signal ?, Unknown signal.
> [Switching to Thread 10320.0x1050]
> 0x0000000180071a71 in myfault_altstack_handler (exc=0x1cb050)
>      at /usr/src/debug/cygwin-2.5.0-1/winsup/cygwin/exceptions.cc:615
> 615     {
> (gdb) bt full
> #0  0x0000000180071a71 in myfault_altstack_handler (exc=0x1cb050)
>      at /usr/src/debug/cygwin-2.5.0-1/winsup/cygwin/exceptions.cc:615
>          me = <optimized out>
[...]
> #8  0x00007ffc24b25c5f in ntdll!RtlAllocateHeap () from
> /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
> No symbol table info available.
> #9  0x0000000076145cff in ?? ()
>     from
> /cygdrive/c/WINDOWS/system32/tmumh/20019/TmMon/1.6.0.1112/tmmon64.dll
> No symbol table info available.
> #10 0x0000000076145a37 in ?? ()

This DLL apparently belongs to Trend Micro.

Unless you can reproduce this issue with that software uninstalled, I 
suggest you raise it with them.

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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