From: Keith Owens <kaos@ocs.com.au>
To: linux-kernel@vger.kernel.org
Cc: ak@suse.de
Subject: Incorrect alignment assumptions in x86_64 stacktrace
Date: Fri, 25 Aug 2006 16:59:58 +1000 [thread overview]
Message-ID: <13065.1156489198@kao2.melbourne.sgi.com> (raw)
2.6.18-rc4 arch/x86_64/kernel/stacktrace.c::get_stack_end() incorrectly
assumes that the irqstackptr is IRQSTACKSIZE aligned.
stack_end = (unsigned long)cpu_pda(cpu)->irqstackptr;
if (stack_end) {
stack_start = stack_end & ~(IRQSTACKSIZE-1);
irqstackptr is only guaranteed to be page aligned, not IRQSTACKSIZE
(4*PAGE_SIZE) aligned.
next reply other threads:[~2006-08-25 7:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-25 6:59 Keith Owens [this message]
2006-08-25 7:33 ` Andi Kleen
2006-08-25 7:43 ` Keith Owens
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=13065.1156489198@kao2.melbourne.sgi.com \
--to=kaos@ocs.com.au \
--cc=ak@suse.de \
--cc=linux-kernel@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®