From: "Jérôme Carretero" <cJ-ko@zougloub.eu>
To: Alan Stern <stern@rowland.harvard.edu>, Joe Perches <joe@perches.com>
Cc: Tejun Heo <tj@kernel.org>, Hans de Goede <hdegoede@redhat.com>,
Jens <jens-bugzilla.kernel.org@spamfreemail.de>,
Andrey Astafyev <1@246060.ru>, Oliver Neukum <oneukum@suse.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: Seagate External SMR drive USB resets... why? / USB storage debugging
Date: Wed, 15 Nov 2017 18:27:08 -0500 [thread overview]
Message-ID: <20171115182708.25b97ebe@Vantage.cJ> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1711151656350.1363-100000@iolanthe.rowland.org>
On Wed, 15 Nov 2017 17:02:39 -0500 (EST)
Alan Stern <stern@rowland.harvard.edu> wrote:
> > > - It looks like (haven't tested it yet) the CONFIG_DYNAMIC_DEBUG
> > > isn't used with the USB mass storage debugging infrastructure,
> > > please confirm? If unused, are we interested to have a patch that
> > > would go back to regular pr_debug() that can work with dynamic
> > > debugging?
>
> dev_dbg() please, not pr_debug(). But yes, that would be worthwhile.
Yes obviously.
Adding Joe Perches to the loop as he did a refactor of USB mass storage
a while ago.
> Note, however, that usb-storage debugging is meant only for debugging
> problems in the usb-storage driver itself, not for debugging problems
> in attached devices. We use usbmon or wireshark for the latter.
OK but I find that a "reset" message without any reason is not
as helpful as it could have been. At the minimum I'll try to scratch my
own itch and see if I can go at the bottom of my issue.
Regards,
--
Jérôme
next prev parent reply other threads:[~2017-11-15 23:25 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-10 15:13 [PATCH] uas: Add US_FL_NO_ATA_1X quirk for one more Seagate device Hans de Goede
2017-11-12 21:42 ` Jérôme Carretero
[not found] ` <20171112164234.48b5185c-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-13 4:01 ` Andrey Astafyev
2017-11-13 6:14 ` Jérôme Carretero
2017-11-13 6:16 ` Andrey Astafyev
2017-11-13 7:14 ` Jérôme Carretero
[not found] ` <20171113011438.458369bf-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-13 9:04 ` Hans de Goede
[not found] ` <3d276729-63f7-9727-4a22-55849712439c-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-11-13 17:38 ` Jérôme Carretero
[not found] ` <20171113123814.4e70a498-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-15 21:43 ` Seagate External SMR drive USB resets (was: Re: [PATCH] uas: Add US_FL_NO_ATA_1X quirk for one more Seagate device) Jérôme Carretero
[not found] ` <20171115164314.74ce972f-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-15 21:49 ` Jérôme Carretero
[not found] ` <20171115164902.00d1330d-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-15 22:02 ` Alan Stern
2017-11-15 22:40 ` James Bottomley
2017-11-15 23:17 ` Jérôme Carretero
2017-11-16 4:21 ` Seagate External SMR drive USB resets (XHCI transfer error, not timeout) Jérôme Carretero
[not found] ` <20171115232129.102a1122-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-16 19:42 ` Alan Stern
2017-11-17 22:19 ` Jérôme Carretero
2017-11-18 16:57 ` Alan Stern
2017-11-15 23:27 ` Jérôme Carretero [this message]
[not found] ` <20171115182708.25b97ebe-WI5o+PA4G9BYumZHjSPV5A@public.gmane.org>
2017-11-15 23:40 ` Seagate External SMR drive USB resets... why? / USB storage debugging Bart Van Assche
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