From: Johannes Erdfelt <johannes@erdfelt.com>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Joe Lawrence <joe.lawrence@redhat.com>,
Jessica Yu <jeyu@kernel.org>, Jiri Kosina <jikos@kernel.org>,
Miroslav Benes <mbenes@suse.cz>,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>,
live-patching@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Oops caused by race between livepatch and ftrace
Date: Mon, 20 May 2019 14:48:02 -0700 [thread overview]
Message-ID: <20190520214801.GD1646@sventech.com> (raw)
In-Reply-To: <20190520211931.vokbqxkx5kb6k2bz@treble>
On Mon, May 20, 2019, Josh Poimboeuf <jpoimboe@redhat.com> wrote:
> I think you must have been looking at an old version.
>
> [(v5.2-rc1)] ~/git/linux $ grep jeyu MAINTAINERS
> M: Jessica Yu <jeyu@kernel.org>
Operator error on my part. I was looking at a different directory with
an old branch checked out. Sorry!
> Can you try this patch (completely untested)?
It seems to be working fine for me. No crashes in a loop for a few
minutes, when it would usually only take a couple of tries to reproduce
the issue for me.
I'll see if I can better reproduce the race from the ftrace side since
every crash I have seen for this issue has been in apply_relocate_add
on the livepatch side.
JE
next prev parent reply other threads:[~2019-05-20 21:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-20 19:49 Oops caused by race between livepatch and ftrace Johannes Erdfelt
2019-05-20 20:46 ` Joe Lawrence
2019-05-20 21:09 ` Johannes Erdfelt
2019-05-20 21:19 ` Josh Poimboeuf
2019-05-20 21:39 ` Steven Rostedt
2019-05-21 14:16 ` Josh Poimboeuf
2019-05-21 14:42 ` Steven Rostedt
2019-05-21 16:42 ` Josh Poimboeuf
2019-05-21 16:53 ` Steven Rostedt
2019-05-29 11:17 ` Jiri Kosina
2019-05-29 12:06 ` Steven Rostedt
2019-05-29 12:30 ` Josh Poimboeuf
2019-05-22 13:00 ` Josh Poimboeuf
2019-05-29 17:29 ` Jessica Yu
2019-05-29 17:39 ` Josh Poimboeuf
2019-05-29 18:34 ` Jessica Yu
2019-05-20 21:48 ` Johannes Erdfelt [this message]
2019-05-20 21:19 ` Joe Lawrence
2019-05-21 19:27 ` Joe Lawrence
2019-05-21 21:00 ` Josh Poimboeuf
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=20190520214801.GD1646@sventech.com \
--to=johannes@erdfelt.com \
--cc=jeyu@kernel.org \
--cc=jikos@kernel.org \
--cc=joe.lawrence@redhat.com \
--cc=jpoimboe@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=live-patching@vger.kernel.org \
--cc=mbenes@suse.cz \
--cc=mingo@redhat.com \
--cc=rostedt@goodmis.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;
as well as URLs for NNTP newsgroup(s).