From owner-freebsd-current@freebsd.org Sun Oct 11 10:21:39 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C9FF943F0C0 for ; Sun, 11 Oct 2020 10:21:39 +0000 (UTC) (envelope-from grahamperrin@gmail.com) Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4C8HsZ3T17z40tG for ; Sun, 11 Oct 2020 10:21:38 +0000 (UTC) (envelope-from grahamperrin@gmail.com) Received: by mail-wr1-x432.google.com with SMTP id n18so15527996wrs.5 for ; Sun, 11 Oct 2020 03:21:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:references:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=jn6iTtaQLi4OvZAenPZX2YBAN0eDYdMLjqzygm5t184=; b=F6PErld3SgxdtnRP0yj190ow5PCfA/P/NeizK1OMsuv21Fc3swpdH9kgaD4rUCK2HW Hy1DWaI9nqC2r+FQJKnfIkirsRy8ltpWW5lxpcxTyt7GtvS0nJ6bB5/ZwGiC/oaMl58A aFpdmw+CyNBqaL82L6ARUYG4UMcHwCMhUw7TQvxljvrIBOUyo49LFT6lt3GIcuu9P+2g aZ5k7Ko3adOQAMo3R3M49PCjHNRO2+Kn/0XCizwXA2bJWkVOGMNrU/stCtHqpxC2PNYt apjFEVXUNV9Q3PedbzaDSC4NfRf4NyqzBroY7agpoKUKtZXDvXgOx7jv2rvraz9mmiWC 3Z/w== X-Gm-Message-State: AOAM532AzgwdH+Mt7ub/cle9L7CGSiRGMlmOO6rb5pq2lheFRNJcWs+X zj+opN1XoAseSYTTHrd9f5uIQwZHIIKIuQ== X-Google-Smtp-Source: ABdhPJxFQj0KndKkHjJUEF+tjxJ3lQRb68asZjuvpByT8akpYU323+0tuKANz6JN1VWTFdevmAQ/vA== X-Received: by 2002:adf:9c19:: with SMTP id f25mr9343463wrc.366.1602411695998; Sun, 11 Oct 2020 03:21:35 -0700 (PDT) Received: from [192.168.1.11] (79-66-147-78.dynamic.dsl.as9105.com. [79.66.147.78]) by smtp.gmail.com with ESMTPSA id u15sm18537088wml.21.2020.10.11.03.21.34 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 11 Oct 2020 03:21:34 -0700 (PDT) Subject: Re: zpool export: umount failed, device inexplicably busy From: Graham Perrin To: freebsd-current@freebsd.org References: Message-ID: <4125dad7-b1ea-bf20-4996-6a138ff202eb@gmail.com> Date: Sun, 11 Oct 2020 11:21:34 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.3.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 4C8HsZ3T17z40tG X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.61 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; NEURAL_HAM_SHORT(-0.70)[-0.698]; RECEIVED_SPAMHAUS_PBL(0.00)[79.66.147.78:received]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MID_RHS_MATCH_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.98)[-0.976]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-0.93)[-0.931]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::432:from]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Oct 2020 10:21:39 -0000 On 06/10/2020 21:29, Graham Perrin wrote: > lsof finds no open file. > > How else might I tell why the device is busy? > > Mobile hard disk drive, USB. The same problem this morning, ---- root@momh167-gjp4-8570p:~ # zpool export Transcend cannot unmount '/Volumes/t500': umount failed root@momh167-gjp4-8570p:~ # lsof /Volumes/t500/ lsof: WARNING: device cache mismatch: /dev/usb/0.5.2 lsof: WARNING: /root/.lsof_momh167-gjp4-8570p was updated. root@momh167-gjp4-8570p:~ # lsof /Volumes/t500/ root@momh167-gjp4-8570p:~ # usbconfig -d 0.5 dump_all_desc ugen0.5: at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr=SAVE (0mA)   bLength = 0x0012   bDescriptorType = 0x0001   bcdUSB = 0x0300   bDeviceClass = 0x0009    bDeviceSubClass = 0x0000   bDeviceProtocol = 0x0003   bMaxPacketSize0 = 0x0009   idVendor = 0x0424   idProduct = 0x5434   bcdDevice = 0x3082   iManufacturer = 0x0002    iProduct = 0x0003    iSerialNumber = 0x0001  <1239567>   bNumConfigurations = 0x0001  Configuration index 0     bLength = 0x0009     bDescriptorType = 0x0002     wTotalLength = 0x001f     bNumInterfaces = 0x0001     bConfigurationValue = 0x0001     iConfiguration = 0x0000      bmAttributes = 0x00e0     bMaxPower = 0x0000     Interface 0       bLength = 0x0009       bDescriptorType = 0x0004       bInterfaceNumber = 0x0000       bAlternateSetting = 0x0000       bNumEndpoints = 0x0001       bInterfaceClass = 0x0009        bInterfaceSubClass = 0x0000       bInterfaceProtocol = 0x0000       iInterface = 0x0000       Endpoint 0         bLength = 0x0007         bDescriptorType = 0x0005         bEndpointAddress = 0x0081          bmAttributes = 0x0013          wMaxPacketSize = 0x0002         bInterval = 0x0008         bRefresh = 0x0000         bSynchAddress = 0x0000       Additional Descriptor       bLength = 0x06       bDescriptorType = 0x30       bDescriptorSubType = 0x00        RAW dump:        0x00 | 0x06, 0x30, 0x00, 0x00, 0x02, 0x00 root@momh167-gjp4-8570p:~ # zpool export Transcend cannot unmount '/Volumes/t500': umount failed root@momh167-gjp4-8570p:~ # umount /Volumes/t500 umount: unmount of /Volumes/t500 failed: Device busy root@momh167-gjp4-8570p:~ # lsof /Volumes/t500/ root@momh167-gjp4-8570p:~ # ---- When this last occurred, I could export the pool after signing out from KDE.