From: Kyle McMartin <kyle@mcmartin.ca>
To: linux-parisc@vger.kernel.org
Subject: [bug] gcc-4.[23] miscompiling causing networking to bugger up
Date: Wed, 28 May 2008 15:09:46 -0400 [thread overview]
Message-ID: <20080528190946.GA30501@phobos.i.cabal.ca> (raw)
So I've narrowed the regression down to a miscompilation (presumably) of
net/ipv4/ip_output.o, in the sense that
cp linux-2.6-gcc34/net/ipv4/ip_output.o
linux-2.6-gcc43/net/ipv4/ip_output.o
touch linux-2.6-gcc43/net/ipv4/ip_output.o
make vmlinux
fixes the issue.
Unfortunately, the file is basically entirely different when
objdump'd...
The generated assembly is not much more help either.
I'm going to try again with gcc 4.1 & 4.2, and hope they're similar
enough that they generate closer assembly fragments...
but, getting closer to a fix, I hope.
next reply other threads:[~2008-05-28 19:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-28 19:09 Kyle McMartin [this message]
2008-05-28 20:00 ` [bug] gcc-4.[23] miscompiling causing networking to bugger up Kyle McMartin
2008-05-28 22:55 ` Carlos O'Donell
2008-05-28 23:00 ` Kyle McMartin
2008-05-28 23:37 ` Carlos O'Donell
2008-05-28 23:41 ` Kyle McMartin
2008-05-29 0:00 ` John David Anglin
2008-05-29 0:02 ` Kyle McMartin
2008-05-29 0:07 ` Carlos O'Donell
2008-05-29 0:15 ` Kyle McMartin
2008-05-31 4:10 ` [bug] gcc-4.3 " Kyle McMartin
2008-05-31 10:58 ` Matthew Wilcox
2008-06-01 1:37 ` Grant Grundler
2008-05-31 14:43 ` Carlos O'Donell
2008-05-29 1:11 ` [bug] gcc-4.[23] " John David Anglin
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=20080528190946.GA30501@phobos.i.cabal.ca \
--to=kyle@mcmartin.ca \
--cc=linux-parisc@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