From: EUNBONG SONG <eunb.song@samsung.com>
To: "Sidorov, Andrei" <Andrei.Sidorov@arrisi.com>,
Theodore Ts'o <tytso@mit.edu>, Tony Luck <tony.luck@gmail.com>,
Dmitry Monakhov <dmonakhov@openvz.org>,
"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+
Date: Mon, 13 May 2013 05:12:19 +0000 (GMT) [thread overview]
Message-ID: <3567921.21651368421937829.JavaMail.weblogic@epml07> (raw)
> Hi,
> Bitfields are likely to be implemented using read-modify-write semantics.
> Modifications of either b_jlist or b_jmodified must be done under lock
> since they share same uint. I guess this lock is missing somewhere.
Hi, I agree with you. b_jlist and b_jmodified share the same unit.
I think they are separated.
Thanks.
WARNING: multiple messages have this Message-ID (diff)
From: EUNBONG SONG <eunb.song@samsung.com>
To: "Sidorov, Andrei" <Andrei.Sidorov@arrisi.com>,
"Theodore Ts'o" <tytso@mit.edu>, Tony Luck <tony.luck@gmail.com>,
Dmitry Monakhov <dmonakhov@openvz.org>,
"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+
Date: Mon, 13 May 2013 05:12:20 +0000 (GMT) [thread overview]
Message-ID: <3567921.21651368421937829.JavaMail.weblogic@epml07> (raw)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=euc-kr, Size: 493 bytes --]
> Hi,
> Bitfields are likely to be implemented using read-modify-write semantics.
> Modifications of either b_jlist or b_jmodified must be done under lock
> since they share same uint. I guess this lock is missing somewhere.
Hi, I agree with you. b_jlist and b_jmodified share the same unit.
I think they are separated.
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next reply other threads:[~2013-05-13 5:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-13 5:12 EUNBONG SONG [this message]
2013-05-13 5:12 ` Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+ EUNBONG SONG
-- strict thread matches above, loose matches on Subject: below --
2013-05-13 7:26 EUNBONG SONG
2013-05-13 7:26 ` EUNBONG SONG
2013-05-10 0:51 EUNBONG SONG
2013-05-10 0:51 ` EUNBONG SONG
2013-05-10 17:27 ` Tony Luck
2013-05-11 7:52 ` Dmitry Monakhov
2013-05-13 2:04 ` Tony Luck
2013-05-13 8:43 ` Zheng Liu
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