linux-kernel - Re: Stop SSD from waiting for "Spinning up disk..."

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Message-ID: <CAAJw_ZskKJ8JUCs1SUCXszbtqfo=-nEXuXpO=wd_EzC3EhdMfg@mail.gmail.com>
Date:	Thu, 25 Jun 2015 07:55:45 +0800
From:	Jeff Chua <jeff.chua.linux@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Martin Steigerwald <martin@...htvoll.de>,
	Andreas Mohr <andi@...as.de>,
	lkml <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@....de>
Subject: Re: Stop SSD from waiting for "Spinning up disk..."

On Thu, Jun 25, 2015 at 12:28 AM, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Thu, Jun 25, 2015 at 12:22:47AM +0800, Jeff Chua wrote:

>> Both sda and sdb have the same SSD model.
>
> That's a bug in your USB bridge chip, odds are it is not reporting the
> value properly.  There's nothing the scsi core or USB stack can do about
> this, sorry.  Please complain to the hardware manufacturer.

There are workaround boot cmdline parameters for other things ... any
chance to consider  one to fix broken rotational option? I'm not sure
how many out there are broken, but I really would like a faster way to
access my USB SSD without waiting for the "disk spinup".

Thanks,
Jeff.
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