From: William Lee Irwin III <wli@holomorphy.com>
To: Manish Lachwani <manish@Zambeel.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.17 SMP hangs ..
Date: Fri, 22 Nov 2002 04:00:49 -0800 [thread overview]
Message-ID: <20021122120049.GV11776@holomorphy.com> (raw)
In-Reply-To: <233C89823A37714D95B1A891DE3BCE5202AB1975@xch-a.win.zambeel.com>
On Wed, Nov 20, 2002 at 09:28:06PM -0800, Manish Lachwani wrote:
> I am seeing system hangs with 2.4.17 SMP kernel when doing mke2fs accros 12
> drives in parallel. However, the hangs only occur when the I/O rate from
> vmstat is high:
This is the BKL/irqlock/io_request_lock contention issue. 2.5.x is
the only answer here: it has per-queue locking and has removed the
irqlock from the BKL.
Bill
next prev parent reply other threads:[~2002-11-22 11:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-21 5:28 2.4.17 SMP hangs Manish Lachwani
2002-11-21 6:03 ` Andrew Morton
2002-11-26 15:22 ` Theodore Ts'o
2002-11-26 16:13 ` Andrew Morton
2002-11-21 6:33 ` Andre Hedrick
2002-11-22 12:00 ` William Lee Irwin III [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-11-22 22:30 Manish Lachwani
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