Date: Tue, 10 Apr 2001 15:21:06 +0400 (MSD) From: Michail Vidiassov <master@iaas.msu.ru> To: <freebsd-questions@freebsd.org> Cc: <freebsd-scsi@freebsd.org> Subject: no active SCB for reconnecting target Message-ID: <Pine.BSF.4.33.0104101511001.67775-100000@serv.iaas.msu.ru>
next in thread | raw e-mail | index | archive | help
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: <NE2000 PCI Ethernet (Compex)> port 0x6000-0x601f irq 11 at device
17.0 on pci0
ahc0: <Adaptec 2940 SCSI adapter> 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: <Digital 21041 Ethernet> 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: <SEAGATE ST51080N 0943> 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: <IBM DCAS-34330 S61A> 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-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.33.0104101511001.67775-100000>