From: Christoph Hellwig <hch@infradead.org>
To: Hans de Goede <hdegoede@redhat.com>
Cc: SCSI development list <linux-scsi@vger.kernel.org>
Subject: Re: Logging of all scsi commands to a certain target?
Date: Sun, 24 Aug 2014 14:08:49 -0700 [thread overview]
Message-ID: <20140824210849.GA29246@infradead.org> (raw)
In-Reply-To: <53F8AB3F.50901@redhat.com>
On Sat, Aug 23, 2014 at 04:54:55PM +0200, Hans de Goede wrote:
> Hi,
>
> Now that the UAS driver is no longer marked as CONFIG_BROKEN,
> I'm getting quite a few bug reports about issues with UAS drives.
>
> Some of these seem to be related to the scsi core and/or the sd
> driver sending a command the device does not like.
>
> As such I'm wondering if there us a way to get the kernel
> to log each scsi command ? Or at least is there a helper
> function to log scsi commands which I can add to the uas driver
> (under a verbose option) to allow this ?
Enable the scsi_dispatch_cmd_start tracepoint using trace-cmd or
debugfs, and filter using host_no/channel/id/lun for your specific
device. See Documentation/trace/events.txt for details on setting
up filters.
prev parent reply other threads:[~2014-08-24 21:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-23 14:54 Logging of all scsi commands to a certain target? Hans de Goede
2014-08-23 15:48 ` Douglas Gilbert
2014-08-24 21:08 ` Christoph Hellwig [this message]
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