From: Oliver Neukum <oneukum@suse.com>
To: George Cherian <gcherian@caviumnetworks.com>
Cc: hdegoede@redhat.com, stern@rowland.harvard.edu,
linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: JMS56x not working reliably with uas driver
Date: Wed, 21 Dec 2016 12:42:27 +0100 [thread overview]
Message-ID: <1482320547.7638.7.camel@suse.com> (raw)
In-Reply-To: <585A69E6.6040009@caviumnetworks.com>
On Wed, 2016-12-21 at 17:09 +0530, George Cherian wrote:
> Hi Oliver,
>
> I was working with this JMicron device and using the uas driver.
> I am seeing the following 2 issues.
>
> 1) On connect I see the following messages.
Thanks. Do you want to submit it to Greg?
The patch is fine.
> 2) On disconnect I am seeing the following issue
>
> scsi host4: uas_post_reset: alloc streams error -19 after reset
> sd 4:0:0:0: [sdb] Synchronizing SCSI cache
>
> This is more fatal because after these messages the USB port becomes
> unusable. Even an lsusb invocation hangs for ever.
Ouch. That points to a logic error. We should not reset if
a device is gone.
Could you send dmesg of such a case?
Regards
Oliver
next prev parent reply other threads:[~2016-12-21 11:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-21 11:39 JMS56x not working reliably with uas driver George Cherian
2016-12-21 11:42 ` Oliver Neukum [this message]
[not found] ` <1482320547.7638.7.camel-IBi9RG/b67k@public.gmane.org>
2016-12-21 11:54 ` Hans de Goede
2016-12-21 11:54 ` Oliver Neukum
2016-12-21 12:07 ` George Cherian
2016-12-21 12:12 ` Oliver Neukum
2016-12-21 12:20 ` Hans de Goede
2016-12-21 12:47 ` George Cherian
[not found] ` <585A79F5.7080701-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
2016-12-21 14:39 ` Oliver Neukum
[not found] ` <1482331185.7638.14.camel-IBi9RG/b67k@public.gmane.org>
2016-12-22 2:04 ` George Cherian
[not found] ` <98b66992-826f-7073-2a1d-eee6a2a9590f-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
2016-12-22 10:13 ` George Cherian
2016-12-22 11:25 ` Oliver Neukum
2016-12-21 11:50 ` Hans de Goede
[not found] ` <585A69E6.6040009-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
2016-12-22 22:44 ` Alan Stern
2016-12-23 3:01 ` George Cherian
2016-12-23 14:22 ` Alan Stern
2016-12-27 14:34 ` Oliver Neukum
[not found] ` <1482849255.1731.1.camel-IBi9RG/b67k@public.gmane.org>
2016-12-27 15:20 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1612271015100.21478-100000-pYrvlCTfrz9XsRXLowluHWD2FQJk+8+b@public.gmane.org>
2016-12-27 15:53 ` Oliver Neukum
2016-12-27 18:22 ` George Cherian
2016-12-28 2:19 ` Alan Stern
2016-12-29 8:28 ` Oliver Neukum
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