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From: Mike McCarty <mcmccarty AT gmail DOT com>

Date: Mon, 26 Sep 2016 15:53:28 -0500

Message-ID: <CACt7iwkxqeKxYxjYp=G8SwbzXyPAqDbX1veM3pEMhy3XRtLqRw@mail.gmail.com>

Subject: Re: Corrupt Cygwin64 install?

To: cygwin AT cygwin DOT com

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I finally got back to looking at this...

I reinstalled cygwin64 from scratch.  Removed all of my .*rc files and
other customizations.  No change.

So I decided to run it in the debugger:

$ gdb /usr/bin/emacs-nox.exe
(gdb) r
Starting program: /usr/bin/emacs-nox.exe
[New Thread 9896.0x2308]
[New Thread 9896.0x40c]
[New Thread 9896.0x2a8c]
[New Thread 9896.0x20f4]
[New Thread 9896.0x27bc]
[New Thread 9896.0x488]
[New Thread 9896.0x1ae0]
[Thread 9896.0x2a8c exited with code 0]
[New Thread 9896.0x2b54]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 9896.0x2b54]
0x000007fefcb07497 in TmmonDestoryAddonObject () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll

(gdb) where
#0  0x000007fefcb07497 in TmmonDestoryAddonObject () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll
#1  0x000007fefcae4a55 in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll
#2  0x000007fefcae3ffb in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll
#3  0x000007fefcae3b88 in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll
#4  0x000007fefcaea4d3 in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll
#5  0x000007fefcaf6b5a in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/AddOn/6.80.0.1007/TmUmEvt64.dll
#6  0x00000000748960f6 in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/TmMon/1.6.0.1163/tmmon64.dll
#7  0x0000000074933ac7 in tmmon64!NullExport () from
/cygdrive/c/windows/system32/tmumh/20019/TmMon/1.6.0.1163/tmmon64.dll
#8  0x00000000749337ca in tmmon64!NullExport () from
/cygdrive/c/windows/system32/tmumh/20019/TmMon/1.6.0.1163/tmmon64.dll
#9  0x00000000748972dd in ?? () from
/cygdrive/c/windows/system32/tmumh/20019/TmMon/1.6.0.1163/tmmon64.dll
#10 0x00000001800b2a84 in CreateMutexW () from /usr/bin/cygwin1.dll
#11 0x000000018004415b in init_cygheap::add_tls(_cygtls*) () from
/usr/bin/cygwin1.dll
#12 0x00000001800bd80c in pthread_wrapper () from /usr/bin/cygwin1.dll
#13 0x000000018004577b in _cygtls::call2(unsigned int (*)(void*,
void*), void*, void*) () from /usr/bin/cygwin1.dll
#14 0x00000001800457e4 in _cygtls::call(unsigned int (*)(void*,
void*), void*) () from /usr/bin/cygwin1.dll
#15 0x0000000076dc59bd in KERNEL32!BaseThreadInitThunk () from
/cygdrive/c/windows/system32/kernel32.dll
#16 0x0000000076efa2e1 in ntdll!RtlUserThreadStart () from
/cygdrive/c/windows/SYSTEM32/ntdll.dll
#17 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)


tmmon64.dll is a TrendMicro OfficeScan dll.  After talking my sysadmin
into disabling OfficeScan on my machine temporarily, the crash goes
away.  Adding cygwin to the exclusion list doesn't help here (I tried
it) I think because this is a "real-time monitor", not the file scan
that the exclusion list generally applies to.

Has anybody else had a similar experience with TrendMicro AV software?
 My IT dept. will not allow me to disable it entirely...

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From:	Mike McCarty <mcmccarty AT gmail DOT com>
Date:	Mon, 26 Sep 2016 15:53:28 -0500
Message-ID:	<CACt7iwkxqeKxYxjYp=G8SwbzXyPAqDbX1veM3pEMhy3XRtLqRw@mail.gmail.com>
Subject:	Re: Corrupt Cygwin64 install?
To:	cygwin AT cygwin DOT com
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