linux-kernel - Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070430065719.GD21015@kernel.dk>
Date:	Mon, 30 Apr 2007 08:57:19 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mike Galbraith <efault@....de>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS  is under heavy write load (massive starvation)

On Sat, Apr 28 2007, Mikulas Patocka wrote:
> >So perhaps if there's any privileged reads going on then we should limit
> >writes to a depth of 2 at most, with some timeout mechanism that would
> 
> SCSI has a "high priority" bit in the command block, so you can just set 
> it --- but I am not sure how well do disks support it.

I'd be surprised if it was useful.

-- 
Jens Axboe

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/