All of lore.kernel.org
 help / color / mirror / Atom feed
From: Steven Rostedt <rostedt@goodmis.org>
To: Zeev Tarantov <zeev.tarantov@gmail.com>
Cc: linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Maciej Rutecki <maciej.rutecki@gmail.com>,
	Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: 2.6.35 regression
Date: Thu, 08 Jul 2010 16:14:34 -0400	[thread overview]
Message-ID: <1278620074.1537.123.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <AANLkTilsXUjNNDcC4ZA9m8hBDqzcoh5NGbNd4XX5xx5s@mail.gmail.com>

On Thu, 2010-07-08 at 21:53 +0300, Zeev Tarantov wrote:

> I've just uploaded the disassembly to bugzilla:
> https://bugzilla.kernel.org/show_bug.cgi?id=16353

Thanks I'll take a look.

> 
> With gcc 4.4.4 it boots and objdump's output starts with:
> Disassembly of section .data:
> 
> ffffffff81736898 <__start_syscalls_metadata>:
> ffffffff81736898:       a3 55 5f 81 ff ff ff    mov    %eax,0xffffffff815f55
> ffffffff8173689f:       ff 00
> ffffffff817368a1:       00 00                   add    %al,(%rax)
> ffffffff817368a3:       00 06                   add    %al,(%rsi)
> ffffffff817368a5:       00 00                   add    %al,(%rax)
> 
> With gcc 4.5.1 rev. 161655 objdump shows:
> Disassembly of section .data:
> 
> ffffffff8173c438 <__start_syscalls_metadata>:
>         ...
> 
> ffffffff8173c440 <__syscall_meta__mmap>:
> ffffffff8173c440:       2b ab 5f 81 ff ff       sub    -0x7ea1(%rbx),%ebp
> ffffffff8173c446:       ff                      (bad)
> ffffffff8173c447:       ff 00                   incl   (%rax)
> ffffffff8173c449:       00 00                   add    %al,(%rax)
> ffffffff8173c44b:       00 06                   add    %al,(%rsi)
> ffffffff8173c44d:       00 00                   add    %al,(%rax)
> 
> I don't know why -D, but that's the output.
> Hope it helps.

Without -D it wont disassemble data sections.

-- Steve



  reply	other threads:[~2010-07-08 20:14 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-05 13:04 2.6.35 regression Zeev Tarantov
2010-07-08 13:22 ` Steven Rostedt
2010-07-08 14:08   ` Sam Ravnborg
2010-07-08 14:17     ` Steven Rostedt
2010-07-08 18:53   ` Zeev Tarantov
2010-07-08 20:14     ` Steven Rostedt [this message]
2010-07-09  3:26     ` Steven Rostedt
2010-07-09  8:45       ` Zeev Tarantov
2010-07-09 13:04         ` Frederic Weisbecker
2010-07-09 14:03           ` Steven Rostedt
2010-07-09 14:10             ` Frederic Weisbecker
2010-07-09 16:52             ` Zeev Tarantov
2010-07-09 20:21         ` [tip:perf/urgent] tracing: Add alignment to syscall metadata declarations tip-bot for Steven Rostedt

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=1278620074.1537.123.camel@gandalf.stny.rr.com \
    --to=rostedt@goodmis.org \
    --cc=akpm@linux-foundation.org \
    --cc=fweisbec@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=maciej.rutecki@gmail.com \
    --cc=rjw@sisk.pl \
    --cc=zeev.tarantov@gmail.com \
    /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.