From: Jeff Dike <jdike@addtoit.com>
To: Blaisorblade <blaisorblade@yahoo.it>
Cc: user-mode-linux-devel@lists.sourceforge.net,
Allan Graves <allan.graves@oracle.com>
Subject: Re: [uml-devel] Clearing kmalloc_ok during shutdown is broken - malloc will clear our data.
Date: Sun, 2 Oct 2005 14:27:55 -0400 [thread overview]
Message-ID: <20051002182755.GB26063@ccure.user-mode-linux.org> (raw)
In-Reply-To: <200510021231.05260.blaisorblade@yahoo.it>
On Sun, Oct 02, 2005 at 12:31:04PM +0200, Blaisorblade wrote:
> > Yeah, it's bad. The other way to do it is to explictly save the registers
> > in the thread struct, which is effectively the reimplementing setjmp option
> > which you mentioned.
> At least, if we save them separately from the jmpbuf_t, we can use them for
> sysrq t, without reimplementing setjmp() and longjmp(). Not nice, wastes 24
> bytes, but would work.
Yup.
> I have the doubt that the location of those registers is part of the ABI,
I think they are probably not.
> Probably, however, it's just better to test on, say, a Slackware 8.1, and hope
> for the best and go doing a fix when things change.
Yeah, I agree. On the positive side, I think that jmp_buf has probably been
unchanged for a long time, and will remain so.
Jeff
-------------------------------------------------------
This SF.Net email is sponsored by:
Power Architecture Resource Center: Free content, downloads, discussions,
and more. http://solutions.newsforge.com/ibmarch.tmpl
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
next prev parent reply other threads:[~2005-10-02 18:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-28 11:46 [uml-devel] Clearing kmalloc_ok during shutdown is broken - malloc will clear our data Blaisorblade
2005-09-28 20:12 ` Jeff Dike
2005-09-29 12:07 ` Blaisorblade
2005-09-28 21:31 ` Jeff Dike
2005-09-29 14:14 ` Blaisorblade
2005-10-02 1:08 ` Jeff Dike
2005-10-02 10:31 ` Blaisorblade
2005-10-02 18:27 ` Jeff Dike [this message]
2005-10-03 13:40 ` Allan Graves
2005-10-03 18:48 ` Blaisorblade
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20051002182755.GB26063@ccure.user-mode-linux.org \
--to=jdike@addtoit.com \
--cc=allan.graves@oracle.com \
--cc=blaisorblade@yahoo.it \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/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.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.