From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: 8344@debbugs.gnu.org
Subject: bug#8344: (substring ...) crashes on large vectors
Date: Fri, 25 Mar 2011 17:24:58 -0400 [thread overview]
Message-ID: <jwvoc4yrj2w.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <4D8CDC3A.4010705@cs.ucla.edu> (Paul Eggert's message of "Fri, 25 Mar 2011 11:17:30 -0700")
> The problem is that (substring ...) internally calls
> (vector ...), and (vector ...) cannot create a vector
> whose length is 2**31 or greater, because it follows
> the Emacs convention that varargs functions count the
> number of arguments using an 'int'.
I'm pretty sure that even with your patch such a vector would bump into
all kinds of other problems.
Already buffers larger than 2GB are causing troubles right now. So if
you want to fix things, I'd urge you to focus on "handling an 8GB file"
(on 32bit systems this won't work, but on 64bit it should but didn't
last time I tried).
Stefan
next prev parent reply other threads:[~2011-03-25 21:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-25 18:17 bug#8344: (substring ...) crashes on large vectors Paul Eggert
2011-03-25 21:24 ` Stefan Monnier [this message]
2011-03-25 21:48 ` Paul Eggert
2011-03-27 2:18 ` Paul Eggert
2011-03-27 7:52 ` Andreas Schwab
2011-03-27 9:09 ` Paul Eggert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=jwvoc4yrj2w.fsf-monnier+emacs@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=8344@debbugs.gnu.org \
--cc=eggert@cs.ucla.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).