From owner-freebsd-hackers@freebsd.org Mon Mar 11 04:31:08 2019 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 828A1152E556 for ; Mon, 11 Mar 2019 04:31:08 +0000 (UTC) (envelope-from darius@dons.net.au) Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by mx1.freebsd.org (Postfix) with ESMTP id 424B880A5A for ; Mon, 11 Mar 2019 04:31:05 +0000 (UTC) (envelope-from darius@dons.net.au) Received: from 124-148-131-52.dyn.iinet.net.au (HELO midget.dons.net.au) ([124.148.131.52]) by ipmail07.adl2.internode.on.net with ESMTP; 11 Mar 2019 15:00:57 +1030 Received: from midget.dons.net.au (localhost [127.0.0.1]) by midget.dons.net.au (8.15.2/8.15.2) with ESMTPS id x2B4UhJJ085726 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 11 Mar 2019 15:00:53 +1030 (ACDT) (envelope-from darius@dons.net.au) Received: (from mailnull@localhost) by midget.dons.net.au (8.15.2/8.15.2/Submit) id x2B4U6OZ083127 for ; Mon, 11 Mar 2019 15:00:06 +1030 (ACDT) (envelope-from darius@dons.net.au) X-Authentication-Warning: midget.dons.net.au: mailnull set sender to using -f Received: from [10.0.2.26] ([10.0.2.26]) by ns.dons.net.au (envelope-sender ) (MIMEDefang) with ESMTP id x2B4U68r083118; Mon, 11 Mar 2019 15:00:06 +1030 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.2 \(3445.102.3\)) Subject: Re: USB stack getting confused From: "O'Connor, Daniel" In-Reply-To: <030A0C16-4508-4C7C-A87C-72B69B15EDF5@dons.net.au> Date: Mon, 11 Mar 2019 15:00:06 +1030 Cc: Konstantin Belousov , Warner Losh , FreeBSD Hackers Content-Transfer-Encoding: quoted-printable Message-Id: <1BBD445B-9A27-4BE7-9B60-04BE0814D7CA@dons.net.au> References: <3B29D870-41F9-46AF-B9F3-03106DEC417D@dons.net.au> <20190309152613.GM2492@kib.kiev.ua> <20190309162640.GN2492@kib.kiev.ua> <20190309192330.GO2492@kib.kiev.ua> <20190310094758.GP2492@kib.kiev.ua> <35f69493-4bbb-4142-b61a-3e90adc8777b@selasky.org> <20190310102629.GQ2492@kib.kiev.ua> <40bf77e0-47a5-6edc-b5d0-58e3c44988ac@selasky.org> <030A0C16-4508-4C7C-A87C-72B69B15EDF5@dons.net.au> To: Hans Petter Selasky X-Mailer: Apple Mail (2.3445.102.3) X-Spam-Score: -1 () No, score=-1.0 required=5.0 tests=ALL_TRUSTED autolearn=unavailable autolearn_force=no version=3.4.1 X-Scanned-By: MIMEDefang 2.83 on 10.0.2.1 X-Rspamd-Queue-Id: 424B880A5A X-Spamd-Bar: +++++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [5.01 / 15.00]; MV_CASE(0.50)[]; HAS_XAW(0.00)[]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[cached: midget.dons.net.au]; RCVD_NO_TLS_LAST(0.10)[]; RECEIVED_SPAMHAUS_PBL(0.00)[52.131.148.124.zen.spamhaus.org : 127.0.0.11]; IP_SCORE(0.70)[ip: (2.23), ipnet: 150.101.0.0/16(0.99), asn: 4739(0.33), country: AU(-0.04)]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:4739, ipnet:150.101.0.0/16, country:AU]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[131.137.101.150.list.dnswl.org : 127.0.5.1]; ARC_NA(0.00)[]; RCVD_COUNT_FIVE(0.00)[5]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; NEURAL_SPAM_SHORT(0.93)[0.926,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.99)[0.994,0]; DMARC_NA(0.00)[dons.net.au]; R_DKIM_NA(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_SPAM_LONG(1.00)[0.998,0]; R_SPF_NA(0.00)[]; FREEMAIL_CC(0.00)[gmail.com] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Mar 2019 04:31:08 -0000 > On 11 Mar 2019, at 14:27, O'Connor, Daniel wrote: > I can dig into the kernel part if you want but will need some guidance = where to look.. Note that I put a dtrace probe on ugen_open and usb_fifo_open and it = does not fire for 0.5, eg.. [maarsytest 4:28] ~> sudo dtrace -s ~/usb_fifo.d 2324 Password: dtrace: script '/home/radar/usb_fifo.d' matched 4 probes CPU ID FUNCTION:NAME 2 65418 openat:entry Open: = /home/radar/ud3/run/experiment.stemp 0 65418 openat:entry Open: = /local0/Measurements/Phasetest/20190311-0428.noise 2 65418 openat:entry Open: = /home/radar/ud3/lib/acquisition//integrate.plugin 3 65418 openat:entry Open: /dev/ugsio0.ud 3 12030 usb_fifo_open:entry Ugen: ugen0.2 f_open: = ffffffff822946a0 3 12031 usb_fifo_open:return Return: 0 Errno: 9 3 65418 openat:entry Open: /dev/ussio0.ud 0 65418 openat:entry Open: /dev/usbctl 0 65418 openat:entry Open: /dev/ugen0.1 0 12030 usb_fifo_open:entry Ugen: ugen0.1 f_open: = ffffffff8093fd00 0 12102 ugen_open:return Return: 0 Errno: 0 0 12031 usb_fifo_open:return Return: 0 Errno: 0 0 12030 usb_fifo_open:entry Ugen: ugen0.1 f_open: = ffffffff8093fd00 0 12102 ugen_open:return Return: 0 Errno: 0 0 12031 usb_fifo_open:return Return: 0 Errno: 0 3 65418 openat:entry Open: /dev/ugen0.2 3 12030 usb_fifo_open:entry Ugen: ugen0.2 f_open: = ffffffff8093fd00 3 12102 ugen_open:return Return: 0 Errno: 0 3 12031 usb_fifo_open:return Return: 0 Errno: 0 3 12030 usb_fifo_open:entry Ugen: ugen0.2 f_open: = ffffffff8093fd00 3 12102 ugen_open:return Return: 0 Errno: 0 3 12031 usb_fifo_open:return Return: 0 Errno: 0 3 65418 openat:entry Open: /dev/ugen0.3 3 12030 usb_fifo_open:entry Ugen: ugen0.3 f_open: = ffffffff8093fd00 3 12102 ugen_open:return Return: 0 Errno: 0 3 12031 usb_fifo_open:return Return: 0 Errno: 0 3 12030 usb_fifo_open:entry Ugen: ugen0.3 f_open: = ffffffff8093fd00 3 12102 ugen_open:return Return: 0 Errno: 0 3 12031 usb_fifo_open:return Return: 0 Errno: 0 1 65418 openat:entry Open: /dev/ugen0.4 1 12030 usb_fifo_open:entry Ugen: ugen0.4 f_open: = ffffffff8093fd00 1 12102 ugen_open:return Return: 0 Errno: 0 1 12031 usb_fifo_open:return Return: 0 Errno: 0 1 12030 usb_fifo_open:entry Ugen: ugen0.4 f_open: = ffffffff8093fd00 1 12102 ugen_open:return Return: 0 Errno: 0 1 12031 usb_fifo_open:return Return: 0 Errno: 0 1 65418 openat:entry Open: /dev/ugen0.5 Dtrace script is.. fbt:kernel:usb_fifo_open:entry { printf("Ugen: %s f_open: %p", ((struct usb_fifo = *)arg1)->udev->ugen_name, ((struct usb_fifo *)arg1)->methods->f_open); } fbt:kernel:usb_fifo_open:return { printf("Return: %d Errno: %d", arg1, errno); } fbt:kernel:ugen_open:return { printf("Return: %d Errno: %d", arg1, errno); } syscall:freebsd:openat:entry / pid =3D=3D $1 / { printf("Open: %s", copyinstr(arg1)); } -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum