Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755239Ab2BJIDh (ORCPT ); Fri, 10 Feb 2012 03:03:37 -0500 Received: from casper.infradead.org ([85.118.1.10]:54234 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754262Ab2BJIDg (ORCPT ); Fri, 10 Feb 2012 03:03:36 -0500 Message-ID: <4F34CEF5.6020103@kernel.dk> Date: Fri, 10 Feb 2012 09:01:57 +0100 From: Jens Axboe MIME-Version: 1.0 To: Boaz Harrosh CC: Andrew Morton , Simon Arlott , Linux Kernel Mailing List , linux-scsi@vger.kernel.org, FUJITA Tomonori Subject: Re: bsg_unregister_queue attempts to remove "bsg" sysfs link that doesn't exist References: <4F32E0F8.4080203@simon.arlott.org.uk> <20120209152402.cdaf1b55.akpm@linux-foundation.org> <4F347119.5070706@panasas.com> In-Reply-To: <4F347119.5070706@panasas.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7285 Lines: 103 On 02/10/2012 02:21 AM, Boaz Harrosh wrote: > On 02/10/2012 01:24 AM, Andrew Morton wrote: >> (cc's added) >> >> Kernel version appears to be 3.3-rc2. >> >> On Wed, 08 Feb 2012 20:54:16 +0000 >> Simon Arlott wrote: >> >>> I unplugged two hard drives and this happened: >>> [168525.975223] mptbase: ioc0: LogInfo(0x31110d00): Originator={PL}, Code={Reset}, SubCode(0x0d00) cb_idx mptbase_reply >>> [168527.976303] mptbase: ioc0: LogInfo(0x31110d00): Originator={PL}, Code={Reset}, SubCode(0x0d00) cb_idx mptbase_reply >>> [168530.879028] end_device-8:2: mptsas: ioc0: removing sata device: fw_channel 0, fw_id 13, phy 7,sas_addr 0xde5c3f3bbc9bae8f >>> [168530.879034] phy-8:7: mptsas: ioc0: delete phy 7, phy-obj (0xffff88027582b800) >>> [168530.879045] port-8:2: mptsas: ioc0: delete port 2, sas_addr (0xde5c3f3bbc9bae8f) >>> [168530.879525] sd 8:0:2:0: [sdh] Synchronizing SCSI cache >>> [168530.879581] sd 8:0:2:0: [sdh] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK >>> [168530.879651] scsi target8:0:2: mptsas: ioc0: delete device: fw_channel 0, fw_id 13, phy 7, sas_addr 0xde5c3f3bbc9bae8f >>> [168530.879706] ------------[ cut here ]------------ >>> [168530.879715] WARNING: at fs/sysfs/inode.c:323 sysfs_hash_and_remove+0x9c/0xb0() >>> [168530.879717] Hardware name: empty >>> [168530.879719] sysfs: can not remove 'bsg', no directory >>> [168530.879721] Modules linked in: zaurus cdc_ether usbnet bnep rfcomm bridge stp fuse ext4 jbd2 nf_conntrack_ipv6 ipt_REJECT iptable_filter nf_defrag_ipv6 xt_state ip6t_REJECT iptable_mangle xt_tcpudp iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter xt_dscp xt_string xt_owner xt_NFQUEUE xt_multiport xt_mark xt_iprange xt_hashlimit xt_conntrack xt_connmark nf_conntrack ip6_tables ip_tables x_tables btusb bluetooth crc16 >>> [168530.879757] Pid: 1578, comm: kworker/u:7 Tainted: G A 3.3.0-rc2+ #00119-gd8e94fc-dirty >>> [168530.879761] Call Trace: >>> [168530.879770] [] warn_slowpath_common+0x7a/0xb0 >>> [168530.879774] [] warn_slowpath_fmt+0x41/0x50 >>> [168530.879778] [] sysfs_hash_and_remove+0x9c/0xb0 >>> [168530.879782] [] sysfs_remove_link+0x21/0x30 >>> [168530.879788] [] bsg_unregister_queue+0x47/0xa0 >>> [168530.879795] [] sas_rphy_free+0xa0/0xd0 >>> [168530.879798] [] sas_rphy_delete+0x19/0x20 >>> [168530.879801] [] sas_port_delete+0x25/0x130 >>> [168530.879806] [] mptsas_del_end_device+0x183/0x1c0 >>> [168530.879810] [] mptsas_hotplug_work+0x1ec/0x6a0 >>> [168530.879816] [] ? idle_balance+0xf5/0x150 >>> [168530.879820] [] ? finish_task_switch+0x49/0xd0 >>> [168530.879824] [] mptsas_firmware_event_work+0xa63/0xca0 >>> [168530.879829] [] ? lock_timer_base+0x37/0x70 >>> [168530.879832] [] ? mptsas_send_ir2_event+0x110/0x110 >>> [168530.879836] [] process_one_work+0x117/0x3c0 >>> [168530.879839] [] worker_thread+0x172/0x3e0 >>> [168530.879844] [] ? __wake_up_common+0x51/0x80 >>> [168530.879847] [] ? manage_workers+0x200/0x200 >>> [168530.879852] [] kthread+0x96/0xa0 >>> [168530.879858] [] kernel_thread_helper+0x4/0x10 >>> [168530.879862] [] ? kthread_freezable_should_stop+0x60/0x60 >>> [168530.879866] [] ? gs_change+0xb/0xb >>> [168530.879869] ---[ end trace b116d5a791652b31 ]--- >>> [168532.879048] end_device-8:1: mptsas: ioc0: removing sata device: fw_channel 0, fw_id 12, phy 6,sas_addr 0xde5c3f3cc395aa8e >>> [168532.879054] phy-8:6: mptsas: ioc0: delete phy 6, phy-obj (0xffff88027582b000) >>> [168532.879065] port-8:1: mptsas: ioc0: delete port 1, sas_addr (0xde5c3f3cc395aa8e) >>> [168532.879580] sd 8:0:1:0: [sdg] Synchronizing SCSI cache >>> [168532.879692] sd 8:0:1:0: [sdg] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK >>> [168532.879877] scsi target8:0:1: mptsas: ioc0: delete device: fw_channel 0, fw_id 12, phy 6, sas_addr 0xde5c3f3cc395aa8e >>> [168532.879999] ------------[ cut here ]------------ >>> [168532.880033] WARNING: at fs/sysfs/inode.c:323 sysfs_hash_and_remove+0x9c/0xb0() >>> [168532.880038] Hardware name: empty >>> [168532.880042] sysfs: can not remove 'bsg', no directory >>> [168532.880045] Modules linked in: zaurus cdc_ether usbnet bnep rfcomm bridge stp fuse ext4 jbd2 nf_conntrack_ipv6 ipt_REJECT iptable_filter nf_defrag_ipv6 xt_state ip6t_REJECT iptable_mangle xt_tcpudp iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter xt_dscp xt_string xt_owner xt_NFQUEUE xt_multiport xt_mark xt_iprange xt_hashlimit xt_conntrack xt_connmark nf_conntrack ip6_tables ip_tables x_tables btusb bluetooth crc16 >>> [168532.880108] Pid: 1578, comm: kworker/u:7 Tainted: G AW 3.3.0-rc2+ #00119-gd8e94fc-dirty >>> [168532.880115] Call Trace: >>> [168532.880128] [] warn_slowpath_common+0x7a/0xb0 >>> [168532.880136] [] warn_slowpath_fmt+0x41/0x50 >>> [168532.880143] [] sysfs_hash_and_remove+0x9c/0xb0 >>> [168532.880152] [] sysfs_remove_link+0x21/0x30 >>> [168532.880160] [] bsg_unregister_queue+0x47/0xa0 >>> [168532.880171] [] sas_rphy_free+0xa0/0xd0 >>> [168532.880177] [] sas_rphy_delete+0x19/0x20 >>> [168532.880183] [] sas_port_delete+0x25/0x130 >>> [168532.880192] [] mptsas_del_end_device+0x183/0x1c0 >>> [168532.880218] [] mptsas_hotplug_work+0x1ec/0x6a0 >>> [168532.880227] [] ? idle_balance+0xf5/0x150 >>> [168532.880234] [] ? finish_task_switch+0x49/0xd0 >>> [168532.880241] [] mptsas_firmware_event_work+0xa63/0xca0 >>> [168532.880250] [] ? lock_timer_base+0x37/0x70 >>> [168532.880256] [] ? mptsas_send_ir2_event+0x110/0x110 >>> [168532.880264] [] process_one_work+0x117/0x3c0 >>> [168532.880270] [] worker_thread+0x172/0x3e0 >>> [168532.880279] [] ? __wake_up_common+0x51/0x80 >>> [168532.880285] [] ? manage_workers+0x200/0x200 >>> [168532.880293] [] kthread+0x96/0xa0 >>> [168532.880303] [] kernel_thread_helper+0x4/0x10 >>> [168532.880316] [] ? kthread_freezable_should_stop+0x60/0x60 >>> [168532.880329] [] ? gs_change+0xb/0xb >>> [168532.880336] ---[ end trace b116d5a791652b32 ]--- >> > > It might be the same as the other reports see a fix here: > https://lkml.org/lkml/2012/2/8/246 > > See thread: device removal causes "sysfs: can not remove 'bsg', no directory" Fix has been queued up for a few days, it'll go out today. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/