From owner-freebsd-scsi Tue Apr 10 4:21: 9 2001 Delivered-To: freebsd-scsi@freebsd.org Received: from serv.iaas.msu.ru (serv.iaas.msu.ru [212.192.224.252]) by hub.freebsd.org (Postfix) with ESMTP id 8058D37B422; Tue, 10 Apr 2001 04:20:43 -0700 (PDT) (envelope-from master@iaas.msu.ru) Received: from localhost (master@localhost) by serv.iaas.msu.ru (8.11.2/8.11.2) with ESMTP id f3ABL7Q67891; Tue, 10 Apr 2001 15:21:15 +0400 (MSD) (envelope-from master@iaas.msu.ru) Date: Tue, 10 Apr 2001 15:21:06 +0400 (MSD) From: Michail Vidiassov To: Cc: Subject: no active SCB for reconnecting target Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Dear All, please, explain me the meaning of the following kernel message: (cabling/termination are not likely to be the cause of the problem, since the the machine worked for about a year untouched before the error appeared). The error is rare (about one in 2 weeks). ahc0: Bus Device Reset on A:1. 2 SCBs aborted ahc0:A:1: no active SCB for reconnecting target - issuing BUS DEVICE RESET SAVED_SCSIID == 0x17, SAVED_LUN == 0x0, ARG_1 == 0x3a ACCUM = 0x0 SEQ_FLAGS == 0x0, SCBPTR == 0xe, BTT == 0xff, SINDEX == 0x31 SCSIID == 0x17, SCB_SCSIID == 0x17, SCB_LUN == 0x0, SCB_TAG == 0xff, SCB_CONTROL == 0x62 SCSIBUSL == 0x3a, SCSISIGI == 0xe6 SXFRCTL0 == 0x88 SEQCTL == 0x10 ahc0: Dumping Card State at SEQADDR 0x198 SCB count = 110 Kernel NEXTQSCB = 58 Card NEXTQSCB = 58 QINFIFO entries: Waiting Queue entries: Disconnected Queue entries: 2:5 5:55 11:44 QOUTFIFO entries: Sequencer Free SCB List: 14 9 4 12 10 1 15 7 0 3 6 13 8 Pending list: 5 55 44 Kernel Free SCB list: 52 11 15 34 47 57 19 13 46 37 10 12 45 49 50 17 ... ahc0: Bus Device Reset on A:1. 3 SCBs aborted The relevant dmesg lines are: ed0: port 0x6000-0x601f irq 11 at device 17.0 on pci0 ahc0: port 0x6100-0x61ff mem 0xf0000000-0xf0000fff irq 11 at device 18.0 on pci0 aic7870: Wide Channel A, SCSI Id=7, 16/255 SCBs de0: port 0x6200-0x627f mem 0xf0001000-0xf000107f irq 11 at device 19.0 on pci0 ... Waiting 15 seconds for SCSI devices to settle Mounting root from ufs:/dev/da0s1a da1 at ahc0 bus 0 target 1 lun 0 da1: Fixed Direct Access SCSI-2 device da1: 8.064MB/s transfers (8.064MHz, offset 15), Tagged Queueing Enabled da1: 1030MB (2109840 512 byte sectors: 64H 32S/T 1030C) da0 at ahc0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-2 device da0: 10.000MB/s transfers (10.000MHz, offset 15) da0: 4134MB (8467200 512 byte sectors: 64H 32S/T 4134C) uname -a: FreeBSD serv.iaas.msu.ru 4.2-STABLE FreeBSD 4.2-STABLE #15: Mon Feb 12 Machine: iP100, FX motherboard The actual question is : what is to be replaced: SCSI card, kernel driver, SCSI disk? Sincerely, Michail To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message