From: Andrew Morton <akpm@osdl.org>
To: Lukas Hejtmanek <xhejtman@mail.muni.cz>
Cc: marcelo.tosatti@cyclades.com, zaphodb@zaphods.net,
linux-kernel@vger.kernel.org, piggin@cyberone.com.au
Subject: Re: Kernel 2.6.9 Multiple Page Allocation Failures
Date: Wed, 10 Nov 2004 13:09:43 -0800 [thread overview]
Message-ID: <20041110130943.32918c69.akpm@osdl.org> (raw)
In-Reply-To: <20041110203547.GA25410@mail.muni.cz>
Lukas Hejtmanek <xhejtman@mail.muni.cz> wrote:
>
> 2.6.10-rc1-mm3 with CONFIG_PREEMPT=y and CONFIG_PREEMPT_BKL=y
> results with: (and many more xfs related calls)
>
> Nov 10 21:21:05 undomiel1 kernel: BUG: using smp_processor_id() in preemptible [00000001] code: swapper/1
> Nov 10 21:21:05 undomiel1 kernel: caller is xfs_dir2_lookup+0x26/0x157
> Nov 10 21:21:05 undomiel1 kernel: [<c025dbf4>] smp_processor_id+0xa8/0xb8
> Nov 10 21:21:05 undomiel1 kernel: [<c020679b>] xfs_dir2_lookup+0x26/0x157
> Nov 10 21:21:05 undomiel1 kernel: [<c020679b>] xfs_dir2_lookup+0x26/0x157
> Nov 10 21:21:05 undomiel1 kernel: [<c025a4e7>] send_uevent+0x148/0x1a0
That's XFS_STATS_INC() and friends.
I don't think there's really a bug here. It's a tiny bit racy, but that
will merely cause a small inaccuracy in the stats.
I think I'll just drop the debug patch. You can disable
CONFIG_DEBUG_PREEMPT to shut things up.
next prev parent reply other threads:[~2004-11-10 21:08 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-03 22:24 Kernel 2.6.9 Multiple Page Allocation Failures (Part 2) Stefan Schmidt
2004-11-04 12:17 ` Marcelo Tosatti
2004-11-04 18:18 ` Stefan Schmidt
2004-11-09 16:41 ` Kernel 2.6.9 Multiple Page Allocation Failures Marcelo Tosatti
2004-11-09 22:35 ` Lukas Hejtmanek
2004-11-09 22:46 ` Andrew Morton
2004-11-09 22:44 ` Lukas Hejtmanek
2004-11-09 20:33 ` Marcelo Tosatti
2004-11-10 20:35 ` Lukas Hejtmanek
2004-11-10 21:09 ` Andrew Morton [this message]
2004-11-10 21:24 ` Lukas Hejtmanek
2004-11-10 21:47 ` Andrew Morton
2004-11-10 21:28 ` Lukas Hejtmanek
2004-11-10 18:11 ` Marcelo Tosatti
2004-11-11 1:04 ` Lukas Hejtmanek
2004-11-11 21:44 ` Lukas Hejtmanek
2004-11-12 12:09 ` Nick Piggin
2004-11-13 14:47 ` Stefan Schmidt
2004-11-16 9:33 ` Marcelo Tosatti
2004-11-16 17:05 ` Lukas Hejtmanek
2004-11-21 1:43 ` Stefan Schmidt
2004-11-21 2:42 ` Stefan Schmidt
2004-12-02 19:54 ` Lukas Hejtmanek
2004-12-02 20:25 ` Andrew Morton
2004-12-02 21:03 ` Lukas Hejtmanek
2004-12-02 22:31 ` Stefan Schmidt
2004-12-02 22:48 ` Lukas Hejtmanek
2004-12-02 22:56 ` Andrew Morton
2004-12-02 23:18 ` Lukas Hejtmanek
2004-12-03 0:18 ` Andrew Morton
2004-12-03 12:11 ` Lukas Hejtmanek
2004-12-03 12:17 ` Lukas Hejtmanek
2004-12-07 22:52 ` Nick Piggin
2004-12-07 22:59 ` Lukas Hejtmanek
2004-12-07 23:05 ` Nick Piggin
2004-12-08 11:18 ` Lukas Hejtmanek
2004-12-08 11:23 ` Nick Piggin
2004-12-08 11:46 ` Lukas Hejtmanek
2004-12-08 13:14 ` Lukas Hejtmanek
2004-12-09 8:52 ` Nick Piggin
2004-12-09 9:02 ` Lukas Hejtmanek
2004-12-09 10:29 ` Nick Piggin
2004-12-09 10:37 ` Lukas Hejtmanek
2004-12-03 6:18 ` Nathan Scott
2004-12-03 7:06 ` Andrew Morton
2004-12-07 11:17 ` Lukas Hejtmanek
2004-12-08 0:15 ` Nathan Scott
2004-12-08 0:36 ` Lukas Hejtmanek
2004-12-03 10:35 ` Christoph Hellwig
2004-12-03 10:58 ` P
2004-12-03 17:11 ` Andrew Morton
2004-11-09 23:52 ` Stefan Schmidt
2004-11-10 1:27 ` 2.6.10-rc1-mm4 -1 EAGAIN after allocation failure was: " Stefan Schmidt
2004-11-10 1:39 ` Andrew Morton
2004-11-10 2:03 ` Stefan Schmidt
2004-11-10 2:21 ` Andrew Morton
2004-11-10 4:24 ` Nick Piggin
2004-11-10 10:28 ` Stefan Schmidt
2004-11-10 12:06 ` Stefan Schmidt
2004-11-10 8:58 ` Marcelo Tosatti
2004-11-10 12:48 ` Stefan Schmidt
2004-11-10 10:56 ` Marcelo Tosatti
2004-11-11 1:23 ` Nick Piggin
2004-11-11 18:31 ` jhigdon
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=20041110130943.32918c69.akpm@osdl.org \
--to=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marcelo.tosatti@cyclades.com \
--cc=piggin@cyberone.com.au \
--cc=xhejtman@mail.muni.cz \
--cc=zaphodb@zaphods.net \
/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