SCSI Streamer Problem

From: Nicolas Rachinsky <list(at)rachinsky.de>
Date: Sat, 28 Aug 2004 02:17:51 +0200

Hallo,

seit letzter Nacht mag mein Streamer nicht mehr. Da ich softwareseitig
nichts geändert habe, und es jetzt mehrere Monate lief, vermute ich
ein Hardwareproblem. Leider mangelt es mir an Tauschhardware, deshalb
hoffe ich, daß Ihr mir Hinweise geben könnt, woran es liegt.

Schreiben klappt ohne irgendwelche Meldungen, beim Lesen danach steigt
er irgendwann mit "Input/output error" aus:
| root(at)pc5 ~# buffer -i /dev/nsa0 -z 64k -m 10m -t -o /dev/null
| buffer (reader): failed to read input: Input/output error
| Exit 254
| root(at)pc5 ~#

Davor hängt das Lesen ca. 1 Minute, danach erscheint in dmesg
folgendes:
ahc0: Recovery Initiated
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
ahc0: Dumping Card State while idle, at SEQADDR 0x7
Card was paused
ACCUM = 0xc0, SINDEX = 0x37, DINDEX = 0x24, ARG_2 = 0xff
HCNT = 0xe8 SCBPTR = 0x0
SCSISIGI[0x0] ERROR[0x0] SCSIBUSL[0x0] LASTPHASE[0x1]:(P_BUSFREE)
SCSISEQ[0x12]:(ENAUTOATNP|ENRSELI) SBLKCTL[0x2]:(SELWIDE)
SCSIRATE[0x0] SEQCTL[0x10]:(FASTMODE) SEQ_FLAGS[0xc0]:(NO_CDB_SENT|NOT_IDENTIFIED)
SSTAT0[0x0] SSTAT1[0xa]:(PHASECHG|BUSFREE) SSTAT2[0x0]
SSTAT3[0x0] SIMODE0[0x0] SIMODE1[0xa4]:(ENSCSIPERR|ENSCSIRST|ENSELTIMO)
SXFRCTL0[0x80]:(DFON) DFCNTRL[0x0] DFSTATUS[0x20]:(FIFOQWDEMP)
STACK: 0xcc 0x151 0x192 0x3
SCB count = 20
Kernel NEXTQSCB = 6
Card NEXTQSCB = 6
QINFIFO entries:
Waiting Queue entries:
Disconnected Queue entries: 0:14
QOUTFIFO entries:
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sequencer SCB Info:
  0 SCB_CONTROL[0x44]:(DISCONNECTED|DISCENB) SCB_SCSIID[0x37]
SCB_LUN[0x0] SCB_TAG[0xe]
  1 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  2 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  3 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  4 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  5 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  6 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  7 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  8 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  9 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
10 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
11 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
12 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
13 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
14 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
15 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
Pending list:
14 SCB_CONTROL[0x40]:(DISCENB) SCB_SCSIID[0x37] SCB_LUN[0x0]
Kernel Free SCB list: 15 16 17 18 19 0 1 2 3 4 5 7 8 9 13 12 11 10
Untagged Q(3): 14

<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
(sa0:ahc0:0:3:0): SCB 0xe - timed out
sg[0] - Addr 0x35ac0014 : Length 4076
sg[1] - Addr 0x36ae1000 : Length 4096
sg[2] - Addr 0x222c2000 : Length 4096
sg[3] - Addr 0x5143000 : Length 4096
sg[4] - Addr 0x6944000 : Length 4096
sg[5] - Addr 0x2bd05000 : Length 4096
sg[6] - Addr 0x30646000 : Length 4096
sg[7] - Addr 0x28e07000 : Length 4096
sg[8] - Addr 0x253c8000 : Length 4096
sg[9] - Addr 0x34d69000 : Length 4096
sg[10] - Addr 0x22baa000 : Length 4096
sg[11] - Addr 0x35f0b000 : Length 4096
sg[12] - Addr 0x3284c000 : Length 4096
sg[13] - Addr 0x1f10d000 : Length 4096
sg[14] - Addr 0x34b6e000 : Length 4096
sg[15] - Addr 0x91ef000 : Length 4096
sg[16] - Addr 0x30c90000 : Length 20
(sa0:ahc0:0:3:0): Queuing a BDR SCB
(sa0:ahc0:0:3:0): Bus Device Reset Message Sent
ahc0: Timedout SCBs already complete. Interrupts may not be functioning.
(sa0:ahc0:0:3:0): no longer in timeout, status = 34b
ahc0: Bus Device Reset on A:3. 1 SCBs aborted
ahc0: Recovery Initiated
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
ahc0: Dumping Card State while idle, at SEQADDR 0x8
Card was paused
ACCUM = 0xc4, SINDEX = 0x37, DINDEX = 0x24, ARG_2 = 0x3
HCNT = 0x0 SCBPTR = 0x0
SCSISIGI[0x0] ERROR[0x0] SCSIBUSL[0x0] LASTPHASE[0x1]:(P_BUSFREE)
SCSISEQ[0x12]:(ENAUTOATNP|ENRSELI) SBLKCTL[0x2]:(SELWIDE)
SCSIRATE[0x0] SEQCTL[0x10]:(FASTMODE) SEQ_FLAGS[0xc0]:(NO_CDB_SENT|NOT_IDENTIFIED)
SSTAT0[0x5]:(DMADONE|SDONE) SSTAT1[0xa]:(PHASECHG|BUSFREE)
SSTAT2[0x0] SSTAT3[0x0] SIMODE0[0x0] SIMODE1[0xa4]:(ENSCSIPERR|ENSCSIRST|ENSELTIMO)
SXFRCTL0[0x80]:(DFON) DFCNTRL[0x0] DFSTATUS[0x2d]:(FIFOEMP|DFTHRESH|HDONE|FIFOQWDEMP)
STACK: 0xcc 0x151 0x192 0x3
SCB count = 20
Kernel NEXTQSCB = 6
Card NEXTQSCB = 6
QINFIFO entries:
Waiting Queue entries:
Disconnected Queue entries: 0:14
QOUTFIFO entries:
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sequencer SCB Info:
  0 SCB_CONTROL[0x44]:(DISCONNECTED|DISCENB) SCB_SCSIID[0x37]
SCB_LUN[0x0] SCB_TAG[0xe]
  1 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  2 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  3 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  4 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  5 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  6 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  7 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  8 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
  9 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
10 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
11 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
12 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
13 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
14 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
15 SCB_CONTROL[0x0] SCB_SCSIID[0xff]:(TWIN_CHNLB|OID|TWIN_TID)
SCB_LUN[0xff]:(SCB_XFERLEN_ODD|LID) SCB_TAG[0xff]
Pending list:
14 SCB_CONTROL[0x40]:(DISCENB) SCB_SCSIID[0x37] SCB_LUN[0x0]
Kernel Free SCB list: 15 16 17 18 19 0 1 2 3 4 5 7 8 9 13 12 11 10
Untagged Q(3): 14

<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
(sa0:ahc0:0:3:0): SCB 0xe - timed out
(sa0:ahc0:0:3:0): Queuing a BDR SCB
ahc0: Timedout SCBs already complete. Interrupts may not be functioning.
(sa0:ahc0:0:3:0): Bus Device Reset Message Sent
(sa0:ahc0:0:3:0): no longer in timeout, status = 34b
ahc0: Bus Device Reset on A:3. 1 SCBs aborted
(sa0:ahc0:0:3:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state.

Leider ist mir nicht klar, was das heißt.

Wenn ich irgendwelche Hinweise bekäme, wo der Fehler ist (oder nicht
ist) wäre ich sehr dankbar.

Noch ein paar Infos zum System:
ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0xd400-0xd4ff mem 0xe4000000-0xe4000fff irq 9 at device 12.0 on pci0
aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs
sa0 at ahc0 bus 0 target 3 lun 0
sa0: <QUANTUM DLT7000 391B> Removable Sequential Access SCSI-2 device
sa0: 20.000MB/s transfers (10.000MHz, offset 8, 16bit)

FreeBSD 4.10-RELEASE-p2

Vielen Dank schonmal im Voraus,
Nicolas

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Received on Sat 28 Aug 2004 - 02:18:26 CEST