From: ebiederm@xmission.com (Eric W. Biederman)
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86_64: sync_tsc fix the race (so we can boot)
Date: Fri, 29 Jul 2005 09:52:40 -0600 [thread overview]
Message-ID: <m1wtn94njr.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <20050729074419.GB3726@bragg.suse.de> (Andi Kleen's message of "Fri, 29 Jul 2005 09:44:19 +0200")
Andi Kleen <ak@suse.de> writes:
> There are some style problems, but that can be fixed later.
>
> How did you track that nasty it down?
I had a consistent reproducer.
I ruled out hangs in the tsc sync code itself,
by implementing timeouts in all of the loops.
I looked for differences with the ia64 code.
I noticed that sometimes the machine would reboot
and not just hang.
I implemented smp_call_function_single since that was what the ia64
code did. It worked and all of my pieces of evidence just fell
together.
Eric
next prev parent reply other threads:[~2005-07-29 15:53 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-28 4:03 Eric W. Biederman
2005-07-28 16:22 ` yhlu
2005-07-28 17:10 ` [PATCH] x86_64 : prefetchw() can fall back to prefetch() if !3DNOW Eric Dumazet
2005-08-03 13:17 ` Andi Kleen
2005-07-28 17:35 ` [PATCH] x86_64: sync_tsc fix the race (so we can boot) yhlu
2005-07-29 3:08 ` Eric W. Biederman
2005-07-29 20:41 ` yhlu
2005-07-29 23:27 ` yhlu
2005-07-30 0:40 ` Eric W. Biederman
2005-07-30 0:52 ` yhlu
2005-07-30 1:45 ` yhlu
2005-07-29 7:44 ` Andi Kleen
2005-07-29 15:52 ` Eric W. Biederman [this message]
2005-07-29 16:04 ` Eric W. Biederman
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=m1wtn94njr.fsf@ebiederm.dsl.xmission.com \
--to=ebiederm@xmission.com \
--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®