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Re: [PATCH] writeback: avoid possible balance_dirty_pages() lockup on a light-load bdi
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From:
Chuck Ebbert <cebbert@...>
To: Fengguang Wu <wfg@...>
Cc: Andrew Morton <akpm@...>, Greg KH <gregkh@...>, Chakri n <chakriin5@...>, Peter Zijlstra <a.p.zijlstra@...>, Krzysztof Oledzki <olel@...>, linux-pm <linux-pm@...>, lkml <linux-kernel@...>, richard kennedy <richard@...>, Ingo Molnar <mingo@...>
Subject:
Re: [PATCH] writeback: avoid possible balance_dirty_pages() lockup on a light-load bdi
Date: Tuesday, October 2, 2007 - 2:35 pm
On 10/02/2007 09:27 AM, Fengguang Wu wrote:
quoted text
> On Tue, Oct 02, 2007 at 08:13:27PM +0800, Fengguang Wu wrote: > [...] >> One more serious problem is, a busy writer could also drain all the >> dirty pages and make (nr_writeback == dirty_limit+1MB). In that case, >> I suspect the light-load sdb writer still have good chance to >> make progress(need confirmation). > > Well it seems to be a really tricky issue without knowing the per-bdi > numbers. Maybe we could just encourage users to upgrade to 2.6.24... >
Yeah, and if that doesn't work there's always 2.6.25... :/ -
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Messages in current thread:
Re: [PATCH] writeback: avoid possible balance_dirty_pages() ...
, Fengguang Wu
, (Tue Oct 2, 9:27 am)
Re: [PATCH] writeback: avoid possible balance_dirty_pages() ...
, Chuck Ebbert
, (Tue Oct 2, 2:35 pm)
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