From nobody Tue Jan 15 10:06:41 2002 To: cygwin@cygwin.com Subject: Re: segfault with xemacs 21.4.6/cygwin, setup.exe distribution, re_match_2_internal References: <20020114170122.GA15060@redhat.com> From: ht@cogsci.ed.ac.uk (Henry S. Thompson) Date: 15 Jan 2002 10:06:40 +0000 In-Reply-To: <20020114170122.GA15060@redhat.com> Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Civil Service) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Lines: 222 Xref: mcilvanney general.2002-01:290 X-Gnus-Article-Number: 290 Tue Jan 15 10:06:41 2002 --=-=-= Christopher Faylor writes: > I don't know what this is but I'm not going to to run an executable > which has no description. Argh, my bad. First attempt to post bounced, because of .htm attachment (which was data relevant to my post, not the post itself), but in reposting I seem to have lost the message body. Let's try again. The attachment is just a zipped html file which provokes the crash in question. I'm getting a segfault during fontification in xemacs 21.4.6 for cygwin, the binary distributionn, when re_search_2 calls re_match_2_internal at offset 1016 I'm running cygwin 1.3.6-6. This is the same fault I hit with 21.4.5. Doesn't happen with 21.4.3. A more attentive check shows that fontification of the crash-provoking file under 21.4.3 provokes an abort! Modest work with edebug does not reveal any way of finding how the abort is being raised. . . ah, if I edit out the condition-case in font-lock-default-fontify-buffer, I see File mode specification error: (error "Stack overflow in regexp matcher") So it seems possible that under 21.4.5 and .6, under cygwin, (some) stack overflows cause a segfault --- does this help localise the problem? File to provoke the fault attached -- I'm using the html-font-lock-keywords from psgml-html.el ht --=-=-= Content-Type: application/octet-stream Content-Disposition: attachment; filename=resultSun.htm.gz Content-Transfer-Encoding: base64 Content-Description: provokes fontify crash in xemacs21.4.6 H4sICPAIOzwAA3Jlc3VsdFN1bi5odG0A7Z1tc+M2ksdfO1X5Dljti2Suxpb5IFqa9bg260kq uU0mucwk2a2rqytKgm1WKFJLUvL4UvvdD6BEiaIAmQBNsGX31D5INAWim/j/CKLRwOWf3v14 /fGfP31N7rJZSH765W/ff3dNeqf9/m/Odb//7uM78u3HH74n7tk5+Zj4URpkQRz5Yb//9fve 1eefXfKfsf8nhFzeUX+6+si/ZUEW0qt/sN9+mNzRmU8+0jQjP9N0EWbpG/JhEZFJHGVJMF7w ItPX5GYRhiSh8zjJLvurn29Km9HMZ1XM5qf0X4tg+bZ3zX5Lo+z048Oc9j7/7ISfNVkde9vL 6Kesz2v2l8mdn6Q0exuk8WnoZ0F0avU2pZLLNHsIKclYGW+/yH80SdMvtn9nZ/zp9JSXfnKS X+FvP777J/mDHciP3LDrnd74syB8eHPyK02mfuS/Jt8vJsGU/f+3NFzSLJiwj79EwZImzMSU efA0pUlw85d1IbzUf5c+f2uxX9rsvw77r7u9Fq/dqR8Gt9Gbk5DeZMXvTyZxGCdvTk7+fH7u edfXe+XyL6enV5f93NaruibnxRCSTc+yKU0nybfs5pI/yOpq5M/f5P/+Qsb+5PfbJF5E09Pt 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Thompson, HCRC Language Technology Group, University of Edinburgh W3C Fellow 1999--2001, part-time member of W3C Team 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk URL: http://www.ltg.ed.ac.uk/~ht/ --=-=-=--