Kernel complains of Infinite interrupt loop

[Noah]

freebsd-4.11-p3
bacula-1.36
onstream ADR50 SCSI External tape drive


well I just dont know what all this means so I am asking for some guidance.  I
was backing up to an onstream ADR50 tape drive with bacula.  The process since
errored and the daemon is stopped.  I dont know why these Infinite interrupt
loop messages are ending up every minute in the /var/log/messages file.

clues please?



--- snip ---

Jun  5 21:48:27 typhoon /kernel: Infinite interrupt loop, INTSTAT = 0ahc1:
Recovery Initiated
Jun  5 21:48:27 typhoon /kernel: >>>>>>>>>>>>>>>>>> Dump Card State Begins
<<<<<<<<<<<<<<<<<
Jun  5 21:48:27 typhoon /kernel: ahc1: Dumping Card State while idle, at
SEQADDR 0x18
Jun  5 21:48:27 typhoon /kernel: Card was paused
Jun  5 21:48:27 typhoon /kernel: ACCUM = 0x4, SINDEX = 0x48, DINDEX = 0xe4,
ARG_2 = 0x1
Jun  5 21:48:27 typhoon /kernel: HCNT = 0x0 SCBPTR = 0x0
Jun  5 21:48:27 typhoon /kernel: SCSIPHASE[0x0] SCSISIGI[0x18] ERROR[0x0]
SCSIBUSL[0x0] 
Jun  5 21:48:27 typhoon /kernel: LASTPHASE[0x1] SCSISEQ[0x1a] SBLKCTL[0xa]
SCSIRATE[0x0] 
Jun  5 21:48:27 typhoon /kernel: SEQCTL[0x10] SEQ_FLAGS[0xc0] SSTAT0[0x10]
SSTAT1[0x0] 
Jun  5 21:48:27 typhoon /kernel: SSTAT2[0x0] SSTAT3[0x0] SIMODE0[0x8]
SIMODE1[0xac] 
Jun  5 21:48:27 typhoon /kernel: SXFRCTL0[0x80] DFCNTRL[0x0] DFSTATUS[0x89] 
Jun  5 21:48:27 typhoon /kernel: STACK: 0x0 0x164 0x179 0x17
Jun  5 21:48:27 typhoon /kernel: SCB count = 20
Jun  5 21:48:27 typhoon /kernel: Kernel NEXTQSCB = 14
Jun  5 21:48:27 typhoon /kernel: Card NEXTQSCB = 14
Jun  5 21:48:27 typhoon /kernel: QINFIFO entries: 
Jun  5 21:48:27 typhoon /kernel: Waiting Queue entries: 0:4 
Jun  5 21:48:27 typhoon /kernel: Disconnected Queue entries: 
Jun  5 21:48:27 typhoon /kernel: QOUTFIFO entries: 
Jun  5 21:48:27 typhoon /kernel: Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 
Jun  5 21:48:27 typhoon /kernel: Sequencer SCB Info: 
Jun  5 21:48:27 typhoon /kernel: 0 SCB_CONTROL[0x50] SCB_SCSIID[0x57]
SCB_LUN[0x0] SCB_TAG[0x4] 
Jun  5 21:48:27 typhoon /kernel: 1 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 2 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 3 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 4 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 5 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 6 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 7 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 8 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 9 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 10 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 11 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 12 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 13 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 14 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 15 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 16 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 17 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 18 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 19 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 20 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 21 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 22 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 23 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 24 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 25 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 26 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 27 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 28 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 29 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 30 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: 31 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff] 
Jun  5 21:48:27 typhoon /kernel: Pending list: 
Jun  5 21:48:27 typhoon /kernel: 4 SCB_CONTROL[0x50] SCB_SCSIID[0x57]
SCB_LUN[0x0] 
Jun  5 21:48:27 typhoon /kernel: Kernel Free SCB list: 15 16 17 18 19 0 1 2 3
5 6 7 8 9 13 12 11 10 
Jun  5 21:48:27 typhoon /kernel: Untagged Q(5): 4 
Jun  5 21:48:27 typhoon /kernel: 
Jun  5 21:48:27 typhoon /kernel: <<<<<<<<<<<<<<<<< Dump Card State Ends
>>>>>>>>>>>>>>>>>>
Jun  5 21:48:27 typhoon /kernel: (sa0:ahc1:0:5:0): SCB 0x4 - timed out
Jun  5 21:48:27 typhoon /kernel: sg[0] - Addr 0x4722c8c0 : Length 28
Jun  5 21:48:27 typhoon /kernel: (sa0:ahc1:0:5:0): SCB 4: Immediate reset. 
Flags = 0x660
Jun  5 21:48:27 typhoon /kernel: (sa0:ahc1:0:5:0): no longer in timeout,
status = 35b
Jun  5 21:48:27 typhoon /kernel: ahc1: Issued Channel A Bus Reset. 1 SCBs aborted
Jun  5 21:48:27 typhoon /kernel: Infinite interrupt loop, INTSTAT = 0ahc1:
Timedout SCBs already complete. Interrupts may not be functioning.

--- snip ---

cheers,

Noah