From nobody Mon Nov 14 12:10:19 2022 X-Original-To: freebsd-usb@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4N9pZK4GWTz4fm36 for ; Mon, 14 Nov 2022 12:31:05 +0000 (UTC) (envelope-from darius@dons.net.au) Received: from midget.dons.net.au (2403-5800-5200-4700-225-90ff-fe47-39b4.ip6.aussiebb.net [IPv6:2403:5800:5200:4700:225:90ff:fe47:39b4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature ECDSA (P-384) client-digest SHA384) (Client CN "dons.net.au", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4N9pZH3yX0z3mRv for ; Mon, 14 Nov 2022 12:31:02 +0000 (UTC) (envelope-from darius@dons.net.au) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=dons.net.au header.s=default header.b=B90sM6pQ; spf=pass (mx1.freebsd.org: domain of darius@dons.net.au designates 2403:5800:5200:4700:225:90ff:fe47:39b4 as permitted sender) smtp.mailfrom=darius@dons.net.au; dmarc=pass (policy=quarantine) header.from=dons.net.au Received: from midget.dons.net.au (localhost [127.0.0.1]) by midget.dons.net.au (8.17.1/8.16.1) with ESMTPS id 2AECAa1u074199 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Mon, 14 Nov 2022 22:40:48 +1030 (ACDT) (envelope-from darius@dons.net.au) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=dons.net.au; s=default; t=1668427852; bh=taAi6mnQG0iHu6NyEj89cwQYF7ZD6se5FK3D9aM2Ei8=; h=From:Date:Subject:To; b=B90sM6pQ5hbResHiGV8ct3ZePGTWxvDIWm69bg4zEEiWoeLCB5yqa0KKlz9Y03bva /IGHI85C/M/pF9hEEdGgZIR4bEeK7NyQjhZWWXFBiHQDDCZe1/v2YdmqEZZGvgStWK +CAN5qoWLE58aHMTJCwnTHfOsCzFHRljoR9jEf48= Received: (from mailnull@localhost) by midget.dons.net.au (8.17.1/8.16.1/Submit) id 2AECATqh074190 for ; Mon, 14 Nov 2022 22:40:29 +1030 (ACDT) (envelope-from darius@dons.net.au) X-MIMEDefang-Relay-a1a524833438212bf543e143edafb27bc4d2c346: 2403:5800:5200:4700:9e4:468f:11ca:418 Received: from smtpclient.apple ([IPv6:2403:5800:5200:4700:9e4:468f:11ca:418] [2403:5800:5200:4700:9e4:468f:11ca:418]) by 2403-5800-5200-4700-225-90ff-fe47-39b4.ip6.aussiebb.net (envelope-sender ) (MIMEDefang) with ESMTP id 2AECAT4l074187; Mon, 14 Nov 2022 22:40:29 +1030 From: "Daniel O'Connor" Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable List-Id: FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-usb List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-usb@freebsd.org X-BeenThere: freebsd-usb@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.1\)) Date: Mon, 14 Nov 2022 22:40:19 +1030 Subject: USB SX lock hang with mass storage device Message-Id: To: freebsd-usb@freebsd.org X-Mailer: Apple Mail (2.3696.120.41.1.1) X-Spam-Score: 1.3 (*) No, score=1.3 required=5.0 tests=RDNS_NONE,SPF_HELO_NONE, T_SPF_PERMERROR autolearn=no autolearn_force=no version=3.4.5 X-Scanned-By: MIMEDefang 2.84 on 10.0.2.1 X-Spamd-Result: default: False [-1.50 / 15.00]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[dons.net.au,quarantine]; MV_CASE(0.50)[]; R_DKIM_ALLOW(-0.20)[dons.net.au:s=default]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; MLMMJ_DEST(0.00)[freebsd-usb@freebsd.org]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[dons.net.au:+]; RCVD_COUNT_THREE(0.00)[4]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; ASN(0.00)[asn:4764, ipnet:2403:5800::/32, country:AU]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-usb@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[] X-Rspamd-Queue-Id: 4N9pZH3yX0z3mRv X-Spamd-Bar: - X-ThisMailContainsUnwantedMimeParts: N Hi, I have a USB 3 HD dock I use to backup a ZFS system (with zrepl) and = mostly works pretty well, however I have repeatedly had it stuck and = then usbconfig hangs (I can kill it). Pressing ctrl-t shows: load: 15.02 cmd: usbconfig 39354 [USB config SX lock] 116.44r 0.00u = 0.00s 0% 2712k mi_switch+0xc2 sleepq_catch_signals+0x2e6 sleepq_wait_sig+0x9 = _sx_xlock_hard+0x454 usbd_enum_lock_sig+0xa1 usb_ref_device+0x221 = usb_open+0x100 devfs_open+0x146 VOP_OPEN_APV+0x1c vn_open_vnode+0x1b2 = vn_open_cred+0x655 kern_openat+0x283 amd64_syscall+0x10c = fast_syscall_common+0xf8 If I run procstat -a -k I can see the usbconfig: And usbconfig: 39354 118526 usbconfig - mi_switch = sleepq_catch_signals sleepq_wait_sig _sx_xlock_hard usbd_enum_lock_sig = usb_ref_device usb_open devfs_open VOP_OPEN_APV vn_open_vnode = vn_open_cred kern_openat amd64_syscall fast_syscall_common The other usb related processes look very similar to: 15 100468 usb usbus0 mi_switch _cv_wait = usb_process fork_exit fork_trampoline And a thread stuck waiting to free a SIM: PID TID COMM TDNAME KSTACK 15 100471 usb usbus0 mi_switch _sleep = cam_sim_free umass_detach device_detach device_delete_child = usb_detach_device usb_unconfigure usb_free_device uhub_detach = device_detach device_delete_child usb_detach_device usb_unconfigure = usbd_set_config_index usb_bus_suspend usb_bus_reset usb_process Which I presume is the cam_sim_free in umass_cam_detach_sim. Not sure if = some more wisdom could be obtained via dtrace script or the like but I = am open to suggestions :) It is currently running FreeBSD 13.1-RELEASE and it is a Supermicro AMD = system (H12SSL-I). I can't easily update to -current but I can definitely try patches. Thanks. -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum