ahd0: Invalid Sequencer interrupt occurred.

[Yuri Pankov]

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Hi,

I'm getting this message at boot with lot of debug output related to
Adaptec AIC7901 Ultra320 SCSI adapter. Other than that, system seems to
be working without problems. Does this message show possible problems or
it may be silently discarded?

FreeBSD 6.2-RELEASE/i386, GENERIC kernel (was the same with 6.0-RELEASE,
GENERIC).

relevant messages from dmesg:

ahd0: <Adaptec AIC7901 Ultra320 SCSI adapter> port
0xb800-0xb8ff,0xb400-0xb4ff mem 0xfc5fe000-0xfc5fffff irq 27 at device
1.0 on pci2
ahd0: [GIANT-LOCKED]
aic7901: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 50-66Mhz, 512 SCBs

Waiting 5 seconds for SCSI devices to settle
ahd0: Invalid Sequencer interrupt occurred.
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
ahd0: Dumping Card State at program address 0x230 Mode 0x0
Card was paused
INTSTAT[0x0] SELOID[0x1] SELID[0x0] HS_MAILBOX[0x0]
INTCTL[0x80]:(SWTMINTMASK) SEQINTSTAT[0x0] SAVED_MODE[0x11]
DFFSTAT[0x33]:(CURRFIFO_NONE|FIFO0FREE|FIFO1FREE)
SCSISIGI[0x0]:(P_DATAOUT) SCSIPHASE[0x0] SCSIBUS[0x0]
LASTPHASE[0x1]:(P_DATAOUT|P_BUSFREE) SCSISEQ0[0x0]
SCSISEQ1[0x12]:(ENAUTOATNP|ENRSELI) SEQCTL0[0x0]
SEQINTCTL[0x6]:(INTMASK1|INTMASK2)
SEQ_FLAGS[0x0] SEQ_FLAGS2[0x0] QFREEZE_COUNT[0x2]
KERNEL_QFREEZE_COUNT[0x2] MK_MESSAGE_SCB[0xff00] MK_MESSAGE_SCSIID[0xff]
SSTAT0[0x0] SSTAT1[0x0] SSTAT2[0x0] SSTAT3[0x0] PERRDIAG[0x0]
SIMODE1[0xa4]:(ENSCSIPERR|ENSCSIRST|ENSELTIMO) LQISTAT0[0x0]
LQISTAT1[0x0] LQISTAT2[0x0] LQOSTAT0[0x0] LQOSTAT1[0x0]
LQOSTAT2[0x0]

SCB Count = 16 CMDS_PENDING = 0 LASTSCB 0xffff CURRSCB 0xe NEXTSCB 0xff40
qinstart = 28 qinfifonext = 28
QINFIFO:
WAITING_TID_QUEUES:
Pending list:
Total 0
Kernel Free SCB list: 14 15 1 2 3 4 5 6 7 8 9 10 11 12 13 0
Sequencer Complete DMA-inprog list:
Sequencer Complete list:
Sequencer DMA-Up and Complete list:
Sequencer On QFreeze and Complete list:


ahd0: FIFO0 Free, LONGJMP == 0x8000, SCB 0xf
SEQIMODE[0x3f]:(ENCFG4TCMD|ENCFG4ICMD|ENCFG4TSTAT|ENCFG4ISTAT|ENCFG4DATA|ENSAVEPTRS)

SEQINTSRC[0x0] DFCNTRL[0x0] DFSTATUS[0x89]:(FIFOEMP|HDONE|PRELOAD_AVAIL)
SG_CACHE_SHADOW[0x2]:(LAST_SEG) SG_STATE[0x0] DFFSXFRCTL[0x0]
SOFFCNT[0x0] MDFFSTAT[0x5]:(FIFOFREE|DLZERO) SHADDR = 0x00, SHCNT = 0x0
HADDR = 0x00, HCNT = 0x0 CCSGCTL[0x10]:(SG_CACHE_AVAIL)

ahd0: FIFO1 Free, LONGJMP == 0x8063, SCB 0xe
SEQIMODE[0x3f]:(ENCFG4TCMD|ENCFG4ICMD|ENCFG4TSTAT|ENCFG4ISTAT|ENCFG4DATA|ENSAVEPTRS)

SEQINTSRC[0x0] DFCNTRL[0x0] DFSTATUS[0x89]:(FIFOEMP|HDONE|PRELOAD_AVAIL)
SG_CACHE_SHADOW[0x2]:(LAST_SEG) SG_STATE[0x0] DFFSXFRCTL[0x0]
SOFFCNT[0x0] MDFFSTAT[0x5]:(FIFOFREE|DLZERO) SHADDR = 0x00, SHCNT = 0x0
HADDR = 0x00, HCNT = 0x0 CCSGCTL[0x10]:(SG_CACHE_AVAIL)
LQIN: 0x8 0x0 0x0 0xf 0x0 0x1 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
0x0 0x0 0x0 0x0
ahd0: LQISTATE = 0x0, LQOSTATE = 0x0, OPTIONMODE = 0x52
ahd0: OS_SPACE_CNT = 0x20 MAXCMDCNT = 0x1
ahd0: SAVED_SCSIID = 0x0 SAVED_LUN = 0x0

SIMODE0[0xc]:(ENOVERRUN|ENIOERR)
CCSCBCTL[0x4]:(CCSCBDIR)
ahd0: REG0 == 0x4460, SINDEX = 0x180, DINDEX = 0x104
ahd0: SCBPTR == 0xf, SCB_NEXT == 0xff40, SCB_NEXT2 == 0xe
CDB 12 20 0 80 88 76
STACK: 0x22b 0x1 0x0 0x0 0x0 0x0 0x0 0x0
<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
Copied 18 bytes of sense data offset 12: 0x70 0x0 0x6 0x0 0x0 0x0 0x0
0xa 0x0 0x0 0x0 0x0 0x29 0x2 0x2 0x0 0x0 0x0
Copied 18 bytes of sense data offset 12: 0x70 0x0 0x6 0x0 0x0 0x0 0x0
0xa 0x0 0x0 0x0 0x0 0x29 0x2 0x2 0x0 0x0 0x0
da0 at ahd0 bus 0 target 0 lun 0
da0: <SEAGATE ST336807LW 0C01> Fixed Direct Access SCSI-3 device
da0: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged
Queueing Enabled
da0: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
da1 at ahd0 bus 0 target 1 lun 0
da1: <SEAGATE ST336807LW 0C01> Fixed Direct Access SCSI-3 device
da1: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged
Queueing Enabled
da1: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)


Thanks,
Yuri
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