From: Eric Dumazet <eric.dumazet@gmail.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Nathan Zimmer <nzimmer@sgi.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH] fs/proc: Move kfree outside pde_unload_lock
Date: Tue, 28 Aug 2012 21:11:57 -0700 [thread overview]
Message-ID: <1346213517.2522.2.camel@edumazet-glaptop> (raw)
In-Reply-To: <20120828203826.GA5868@p183.telecom.by>
On Tue, 2012-08-28 at 23:38 +0300, Alexey Dobriyan wrote:
> Nothing can stop RCU!
>
> After running "modprobe;rmmod" in a loop and "cat" in another loop for a while
> rmmod got stuck in D-state inside remove_proc_entry() with trace amounts of CPU time
> being consumed.
>
> It didn't oopsed, though.
Thanks !
I'll polish this patch once LKS/LPC is over...
What particular module and/or proc file did you use for your tests ?
next prev parent reply other threads:[~2012-08-29 4:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-22 16:38 Nathan Zimmer
2012-08-22 16:38 ` [PATCH] fs/prof: Update comment on pde_unload_lock Nathan Zimmer
2012-08-22 18:28 ` [PATCH] fs/proc: Move kfree outside pde_unload_lock Eric Dumazet
2012-08-22 21:42 ` Eric Dumazet
2012-08-23 17:54 ` Nathan Zimmer
2012-08-24 14:48 ` Nathan Zimmer
2012-08-24 14:58 ` Eric Dumazet
2012-08-24 16:45 ` Nathan Zimmer
2012-08-24 21:43 ` Nathan Zimmer
2012-08-28 20:38 ` Alexey Dobriyan
2012-08-29 4:11 ` Eric Dumazet [this message]
2012-08-29 8:32 ` Alexey Dobriyan
2012-08-29 13:50 ` Alexey Dobriyan
2012-08-29 14:24 ` Eric Dumazet
2012-09-17 15:57 ` Nathan Zimmer
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=1346213517.2522.2.camel@edumazet-glaptop \
--to=eric.dumazet@gmail.com \
--cc=adobriyan@gmail.com \
--cc=dwmw2@infradead.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nzimmer@sgi.com \
--cc=viro@zeniv.linux.org.uk \
/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®