X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:references
	:in-reply-to:content-type:content-transfer-encoding
	:mime-version; q=dns; s=default; b=GrMhAFyTf6ECtFZAcG3JOP10X3NP9
	mwJPVsqgiSlsaNfHkZJ3HQQDZV+7iYsBNOMLbFJW/nzu3sWWFxJpErm8hj0EyfXk
	BsUELitHtXhkg0klG+zJL2mqOF6ejd8vXK5qRWvKhGezTOE87Ax0jZ2qkaTU/9Ni
	xuAARYtbXPQpRg=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:references
	:in-reply-to:content-type:content-transfer-encoding
	:mime-version; s=default; bh=KAngMCj2MHTFWXawp+6+NQhpHD8=; b=w5j
	UqzOgG9uFunSo1eV5alPgwxdtghSxzDr/US1nRQ6i5XEgf7TYPejXAsbW3kgdI5A
	Nr52tusEEXPaL6Bfkh6Dm0gxsr4QFSRbtoGxgmx+mcZYOYO20kKo3IaA5fo2R1rE
	ClxEXNCf+QHddj9Kdq91/NAKsprHlxE9IqK7l9Ac=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=0.5 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD autolearn=ham version=3.3.2
X-HELO: nbfkord-smmo07.seg.att.com
X-MXL-Hash: 5355d22a365956e1-9f5bcf19de15fc9ceafbf8cc935a37976f2a4417
From: "KARR, DAVID" <dk068x AT att DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: RE: Fatal error from Cygwin emacs-w32 every day or so
Date: Tue, 22 Apr 2014 02:21:08 +0000
Message-ID: <B8D164BED956C5439875951895CB4B222661009D@CAFRFD1MSGUSRIA.ITServices.sbc.com>
References: <B8D164BED956C5439875951895CB4B2225C00EA9 AT WABOTH9MSGUSR8C DOT ITServices DOT sbc DOT com> <534B2EFE DOT 4010509 AT cornell DOT edu> <B8D164BED956C5439875951895CB4B2225C01C84 AT WABOTH9MSGUSR8C DOT ITServices DOT sbc DOT com> <534CB0AF DOT 2040504 AT cornell DOT edu> <83y4z7jcb3 DOT fsf AT gnu DOT org> <534D5AB8 DOT 6030201 AT cornell DOT edu> <535308D8 DOT 1070200 AT cornell DOT edu> <B8D164BED956C5439875951895CB4B222660C8D2 AT CAFRFD1MSGUSRIA DOT ITServices DOT sbc DOT com> <B8D164BED956C5439875951895CB4B222660E6D2 AT CAFRFD1MSGUSRIA DOT ITServices DOT sbc DOT com> <5354FDD8 DOT 9090605 AT cornell DOT edu> <B8D164BED956C5439875951895CB4B222660F77B AT CAFRFD1MSGUSRIA DOT ITServices DOT sbc DOT com> <535564A4 DOT 2020302 AT cornell DOT edu>
In-Reply-To: <535564A4.2020302@cornell.edu>
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
X-RSA-Inspected: yes
X-RSA-Classifications: public
X-AnalysisOut: [v=2.0 cv=YbwKEXtf c=1 sm=1 a=xwOvzTHDVLE4u4nGvK72ag==:17 a]
X-AnalysisOut: [=94PlVXF_xlIA:10 a=ofMgfj31e3cA:10 a=YnP4VLJI-BoA:10 a=BLc]
X-AnalysisOut: [eEmwcHowA:10 a=kj9zAlcOel0A:10 a=zQP7CpKOAAAA:8 a=XIqpo32R]
X-AnalysisOut: [AAAA:8 a=v_eIKD0wAAAA:8 a=1ECgIXIew-j2slqEL5QA:9 a=CjuIK1q]
X-AnalysisOut: [_8ugA:10]
X-Spam: [F=0.2000000000; CM=0.500; S=0.200(2010122901)]
X-MAIL-FROM: <dk068x AT att DOT com>
X-IsSubscribed: yes
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id s3M2LmKk031165

> -----Original Message-----
> Of Ken Brown
> Sent: Monday, April 21, 2014 11:34 AM
> Subject: Re: Fatal error from Cygwin emacs-w32 every day or so
> 
> On 4/21/2014 1:25 PM, KARR, DAVID wrote:
> >> -----Original Message-----
> >> Of Ken Brown
> >> Sent: Monday, April 21, 2014 4:16 AM
> >> Subject: Re: Fatal error from Cygwin emacs-w32 every day or so
> >>
> >> On 4/21/2014 1:14 AM, KARR, DAVID wrote:
> >>>> -----Original Message-----
> >>>> Of KARR, DAVID
> >>>> Sent: Saturday, April 19, 2014 6:19 PM
> >>>> Subject: RE: Fatal error from Cygwin emacs-w32 every day or so
> >>>>
> >>>>> -----Original Message-----
> >>>>> Of Ken Brown
> >>>>> Sent: Saturday, April 19, 2014 4:38 PM
> >>>>> Subject: Re: Fatal error from Cygwin emacs-w32 every day or so
> >>>>>
> >>>>> On 4/15/2014 12:13 PM, Ken Brown wrote:
> >>>>>> On 4/15/2014 12:12 AM, Eli Zaretskii wrote:
> >>>>>>>> Date: Mon, 14 Apr 2014 21:08:15 -0700
> >>>>>>>> From: Ken Brown
> >>>>>>>>
> >>>>>>>>> I just saw it die, and this is the bt I get:
> >>>>>>>>>
> >>>>>>>>> Program received signal SIGSEGV, Segmentation fault.
> >>>>>>>>> 0x0000000100551354 in wait_reading_process_output (
> >>>>>>>>>         time_limit=time_limit AT entry=0, nsecs=nsecs AT entry=0,
> >>>>>>>>>         read_kbd=read_kbd AT entry=-1,
> >> do_display=do_display AT entry=true,
> >>>>>>>>>         wait_for_cell=wait_for_cell AT entry=4304630834,
> >>>>>>>>>         wait_proc=wait_proc AT entry=0x0,
> >>>>>>>>> just_wait_proc=just_wait_proc AT entry=0)
> >>>>>>>>>        @/usr/src/debug/emacs-24.3-7/src/process.c:4677
> >>>>>>>>> 4677                      if (wait_proc->gnutls_p /* Check for
> >>>> valid
> >>>>>>>>> process.  */
> >>>>>>>>
> >>>>>>>> This backtrace doesn't make sense.  If you look at the source
> code,
> >>>>>>>> you'll see that if wait_proc is NULL on entry to
> >>>>>>>> wait_reading_process_output, then line 4677 is never reached.
> I'm
> >>>> not
> >>>>>>>> sure what would cause a bogus backtrace like this.  BLODA?
> >>>>>>>> Optimization?
> >>>>>>>>
> >>>>>>>> In any case, I suggest that you wait a week until I have a chance
> >> to
> >>>>>>>> build a pretest of 24.4 for you to try.  I'll build it without
> >>>>>>>> optimization to make debugging easier.
> >>>>>>>
> >>>>>>> This is a known problem with GnuTLS support, it was solved in the
> >>>>>>> Emacs repository last November (bzr revision 114956, if someone
> >> wants
> >>>>>>> the diffs), and surely should be solved in the upcoming Emacs
> 24.4.
> >>>>>>
> >>>>>> Thanks, Eli!  In that case I'll make a new release of emacs-24.3
> with
> >>>>>> that patch applied, to see if it resolves the issue for the OP.
> >>>>>
> >>>>> I've rebuilt emacs-24.3 with the gnutls fix.  David and Achim (and
> >>>>> anyone else who's been experiencing these crashes), please try the
> >>>>> following binary and let me know if it solves the problem:
> >>>>>
> >>>>>       http://sanibeltranquility.com/cygwin/emacs-w32.exe.xz
> >>>>>
> >>>>> You might have to do "chmod +x emacs-w32.exe" after uncompressing
> it.
> >>>>>
> >>>>> If it fixes the problem, I'll issue a new release of emacs-24.3.  If
> >>>>> not, I'll build a pretest of emacs-24.4 for you to try.
> >>>>
> >>>> Ok.  It's running.  As it only fails after random intervals, I'll
> have
> >> to
> >>>> keep it running for a while.  I'll give it a day or so.
> >>>
> >>> I came back to my computer and saw two dialogs, one saying that my VPN
> >> connection had died (that happens from time to time), and the other the
> >> Emacs failure dialog.  I started this executable from gdb, but it's
> saying
> >> that it doesn't have symbols, so the stacktrace probably isn't helpful,
> >> but this is what I saw:
> >>
> >> Right.  I just supplied a stripped binary for a quick test.  It's not
> >> suitable for debugging.
> >>
> >>> I've started it again, but not in gdb this time.
> >>
> >> If it crashes again, I'll build a pretest of 24.4 without optimization
> >> and issue it as a test release.
> >
> > It just failed again while sitting here in my office (no relation to
> VPN/network issues).
> 
> Could you try one more thing if you haven't already:  Start emacs with
> the -Q option, in case there's something in your initialization files
> that triggers the problem.

I started both a regular instance and the "-Q" instance around noon today (7 hours ago).  The regular instance failed once since then, which I restarted.  The Q instance hasn't failed yet.  That's not a definite, but it's lasted longer so far.  Note that I haven't changed my .emacs in a very long time.

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple