From: Peter Moody <pmoody@google.com>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: ananth@in.ibm.com, anil.s.keshavamurthy@intel.com,
davem@davemloft.net, linux-kernel@vger.kernel.org,
Kees Cook <keescook@google.com>
Subject: Re: splat in kretprobe in get_task_mm(current)
Date: Wed, 04 Jun 2014 16:00:13 -0700 [thread overview]
Message-ID: <r3nha409t6q.fsf@perdido.sfo.corp.google.com> (raw)
In-Reply-To: <538FA28F.30407@hitachi.com> (Masami Hiramatsu's message of "Thu\, 05 Jun 2014 07\:49\:51 +0900")
On Wed, Jun 04 2014 at 15:49, Masami Hiramatsu wrote:
> Here, as you can see, calling mmput() in kretprobe handler is actually the root cause
> of this problem.
Indeed, deferring the mmput to a workqueue solved my issue.
Thanks for your quick reply today!
Cheers,
peter
next prev parent reply other threads:[~2014-06-04 23:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-03 17:39 Peter Moody
2014-06-03 21:53 ` Peter Moody
2014-06-04 8:03 ` Masami Hiramatsu
2014-06-04 14:07 ` Masami Hiramatsu
2014-06-04 15:23 ` Peter Moody
2014-06-04 22:49 ` Masami Hiramatsu
2014-06-04 23:00 ` Peter Moody [this message]
2014-06-04 16:05 ` (ltc-kernel 9473) " Masami Hiramatsu
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=r3nha409t6q.fsf@perdido.sfo.corp.google.com \
--to=pmoody@google.com \
--cc=ananth@in.ibm.com \
--cc=anil.s.keshavamurthy@intel.com \
--cc=davem@davemloft.net \
--cc=keescook@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=masami.hiramatsu.pt@hitachi.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 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®