linux-kernel - Re: Loud "pop" coming from hard drive on reboot

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: <20070418132904.3322ba5f@the-village.bc.nu>
Date:	Wed, 18 Apr 2007 13:29:04 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tejun Heo <htejun@...il.com>
Cc:	7eggert@....de, Chuck Ebbert <cebbert@...hat.com>,
	emisca <emisca.ml@...il.com>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org, Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...l.org>
Subject: Re: Loud "pop" coming from hard drive on reboot

> Not that simple.  Most disks don't spin up on SYNCHRONIZE_CACHE if its 
> cache is clean.  Sadly some disks actually spin up when it receives spin 
> down command while spun down to immediately spin down again, so we would 
> be fixing problem for some number of disks while breaking others.  :-(

Snoop the last command sent to the drive, that tells you if you can skip
the cache flush ?
-
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/