From: Jack Steiner <steiner@sgi.com>
To: "Paul E. McKenney" <paulmck@us.ibm.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: RCU scaling on large systems
Date: Fri, 7 May 2004 17:06:54 -0500 [thread overview]
Message-ID: <20040507220654.GA32208@sgi.com> (raw)
In-Reply-To: <20040507205048.GB1246@us.ibm.com>
On Fri, May 07, 2004 at 01:50:48PM -0700, Paul E. McKenney wrote:
> On Mon, May 03, 2004 at 01:40:06PM -0500, Jack Steiner wrote:
> > Paul -
> >
>
> Hmmm... I took a quick glance, but don't see why an "ls" would
> cause RCU to be invoked. This should only happen if a dentry is
> ejected from dcache.
>
> Any enlightenment appreciated!
>
The calls to RCU are coming from here:
[11]kdb> bt
Stack traceback for pid 3553
0xe00002b007230000 3553 3139 1 11 R 0xe00002b0072304f0 *ls
0xa0000001000feee0 call_rcu
0xa0000001001a3b20 d_free+0x80
0xa0000001001a3ec0 dput+0x340
0xa00000010016bcd0 __fput+0x210
0xa00000010016baa0 fput+0x40
0xa000000100168760 filp_close+0xc0
0xa000000100168960 sys_close+0x180
0xa000000100011be0 ia64_ret_from_syscall
I see this same backtrace from numerous processes.
--
Thanks
Jack Steiner (steiner@sgi.com) 651-683-5302
Principal Engineer SGI - Silicon Graphics, Inc.
next prev parent reply other threads:[~2004-05-07 22:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-01 12:08 RCU scaling on large systems Jack Steiner
2004-05-01 21:17 ` William Lee Irwin III
2004-05-01 22:35 ` William Lee Irwin III
2004-05-02 1:38 ` Jack Steiner
2004-05-07 17:53 ` Andrea Arcangeli
2004-05-07 18:17 ` William Lee Irwin III
2004-05-07 19:59 ` Andrea Arcangeli
2004-05-07 20:49 ` Jack Steiner
2004-05-02 18:28 ` Paul E. McKenney
2004-05-03 16:39 ` Jesse Barnes
2004-05-03 20:04 ` Paul E. McKenney
2004-05-03 18:40 ` Jack Steiner
2004-05-07 20:50 ` Paul E. McKenney
2004-05-07 22:06 ` Jack Steiner [this message]
2004-05-07 23:32 ` Andrew Morton
2004-05-08 4:55 ` Jack Steiner
2004-05-17 21:18 ` Andrea Arcangeli
2004-05-17 21:42 ` Andrew Morton
2004-05-17 23:50 ` Andrea Arcangeli
2004-05-18 13:33 ` Jack Steiner
2004-05-18 23:13 ` Matt Mackall
-- strict thread matches above, loose matches on Subject: below --
2004-05-20 11:36 Manfred Spraul
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=20040507220654.GA32208@sgi.com \
--to=steiner@sgi.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paulmck@us.ibm.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.