From: Andrea Arcangeli <aarcange@redhat.com>
To: Minchan Kim <minchan.kim@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jens Axboe <jaxboe@fusionio.com>, linux-mm <linux-mm@kvack.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Mel Gorman <mel@csn.ul.ie>
Subject: Re: hunting an IO hang
Date: Mon, 17 Jan 2011 21:39:10 +0100 [thread overview]
Message-ID: <20110117203910.GV9506@random.random> (raw)
In-Reply-To: <20110117150954.GD1411@barrios-desktop>
On Tue, Jan 18, 2011 at 12:09:54AM +0900, Minchan Kim wrote:
> And don't we need this patch, either?
I think we need your fix too.
I thought about that but I wasn't sure (I was focusing on Chris's bug
that had no hugetlbfs involvement), but your patch makes it more
obvious. At least that place wouldn't risk to break silently ;). I
guess hugepage migration from memory failure wasn't much tested yet...
Maybe it'd be cleaner to add a putback_lru_huge_pages but I don't mind
because it seems nothing but memory-failure will ever attempt to
migrate an hugepage.
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next prev parent reply other threads:[~2011-01-17 20:39 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1295225684-sup-7168@think>
[not found] ` <AANLkTikBamG2NG6j-z9fyTx=mk6NXFEE7LpB5z9s6ufr@mail.gmail.com>
[not found] ` <4D339C87.30100@fusionio.com>
[not found] ` <1295228148-sup-7379@think>
[not found] ` <AANLkTimp6ef0W_=ijW=CfH6iC1mQzW3gLr1LZivJ5Bmd@mail.gmail.com>
[not found] ` <AANLkTimr3hN8SDmbwv98hkcVfWoh9tioYg4M+0yanzpb@mail.gmail.com>
[not found] ` <1295229722-sup-6494@think>
2011-01-17 2:30 ` hunting an IO hang Andrew Morton
2011-01-17 2:41 ` Chris Mason
2011-01-17 5:11 ` Andrea Arcangeli
2011-01-17 13:48 ` Minchan Kim
2011-01-17 14:10 ` Chris Mason
2011-01-17 14:26 ` Andrea Arcangeli
2011-01-17 14:47 ` Minchan Kim
2011-01-17 15:09 ` Minchan Kim
2011-01-17 20:39 ` Andrea Arcangeli [this message]
2011-01-17 10:27 ` Mel Gorman
2011-01-17 13:21 ` Chris Mason
2011-01-17 13:50 ` Mel Gorman
2011-01-17 14:07 ` Chris Mason
2011-01-17 15:02 ` Chris Mason
2011-01-17 16:32 ` Johannes Weiner
2011-01-17 18:10 ` Mel Gorman
2011-01-17 17:09 ` Mel Gorman
2011-01-17 17:40 ` Chris Mason
2011-01-17 18:24 ` Linus Torvalds
2011-01-17 21:23 ` Chris Mason
2011-01-17 23:03 ` Mel Gorman
2011-01-18 0:30 ` Shaohua Li
2011-01-17 23:02 ` Linus Torvalds
2011-01-17 23:13 ` Minchan Kim
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