From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konstantin Krotov Subject: Re: threads scsi_eh_ and scsi_tmf_ don't die when ib_srp reconnect Date: Tue, 11 Aug 2015 16:40:50 +0300 Message-ID: <55C9FB62.1030004@clodo.ru> References: <55C8C0DC.7070505@clodo.ru> <55C8C39B.1010000@sandisk.com> Reply-To: kkv@clodo.ru Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-lb0-f169.google.com ([209.85.217.169]:33992 "EHLO mail-lb0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934370AbbHKNk7 (ORCPT ); Tue, 11 Aug 2015 09:40:59 -0400 Received: by lbbtg9 with SMTP id tg9so6451162lbb.1 for ; Tue, 11 Aug 2015 06:40:55 -0700 (PDT) In-Reply-To: <55C8C39B.1010000@sandisk.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Bart Van Assche , linux-scsi@vger.kernel.org 10.08.2015 18:30, Bart Van Assche =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > On 08/10/2015 08:18 AM, Konstantin Krotov wrote: >> I was faced with the following problem: >> >> Im exported to compute-node scsi disks through ib_srp from storages.= And >> if reconnect occurs for any reason, eg >> >> "[1201117.626498] scsi host62: ib_srp: REJ received >> [1201117.626507] scsi host62: ib_srp: SRP LOGIN from >> fe80:0000:0000:0000:0002:c903:0009:1796 to >> fe80:0000:0000:0000:0002:c903:0009:c1a0 REJECTED, reason 0x00010001 >> [1201117.626656] scsi host62: ib_srp: Connection 0/8 failed" >> >> i find threads in output ps: >> "root 28047 0.0 0.0 0 0 ? S 18:04 0:00 >> [scsi_eh_62] >> root 28048 0.0 0.0 0 0 ? S< 18:04 0:00 >> [scsi_tmf_62]" >> >> Each reconnect generates two thread, which do not die. >> >> kernel version 3.19.1 >> >> modinfo ib_srp >> filename: /lib/modules/3.19-3-amd64/updates/dkms/ib_srp.ko >> release_date: Apr 09 2015 >> version: 2.0.32#in-tree > > Hello Konstantin, > > Does the above output mean that you are using the ib_srp-backport dri= ver > ? If so, please upgrade to version v2.0.34. That version includes all > SRP initiator fixes that have been posted on the linux-rdma and > linux-scsi mailing lists for inclusion in Linux kernel v4.3. > > Bart. > Hello, thanks for reply. I build a package version 2.0.34, but problem is reproduced: [ 260.266374] scsi host15: ib_srp: REJ received [ 260.266383] scsi host15: ib_srp: SRP LOGIN from=20 fe80:0000:0000:0000:0002:c903:0008:c884 to=20 fe80:0000:0000:0000:0002:c903:0009:c1a0 REJECTED, reason 0x00010001 [ 260.266588] scsi host15: ib_srp: Connection 0/8 failed [ 260.266700] scsi host15: ib_srp: Sending CM DREQ failed and increases the number of threads scsi_tmf_ and scsi_eh_ at every=20 reconnect.. modinfo ib_srp filename: /lib/modules/3.19-3-amd64/updates/dkms/ib_srp.ko release_date: Jul 27 2015 version: 2.0.34#in-tree license: Dual BSD/GPL description: InfiniBand SCSI RDMA Protocol initiator author: Roland Dreier srcversion: 75206A3E8C5F05BED61C20B depends:=20 ib_core,scsi_transport_srp,ib_sa,scsi_mod,ib_cm,rdma_cm,scsi_transport_= srp vermagic: 3.19-3-amd64 SMP mod_unload modversions modinfo scsi_transport_srp filename: /lib/modules/3.19-3-amd64/updates/dkms/scsi_transport_s= rp.ko license: GPL description: SRP Transport Attributes author: FUJITA Tomonori depends: scsi_mod vermagic: 3.19-3-amd64 SMP mod_unload modversions --=20 WBR Konstantin V. Krotov -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html