Adaptec SCSI problems

From: Skylar Thompson (skylar_at_os2.dhs.org)
Date: 12/30/03 

Date: Tue, 30 Dec 2003 22:08:00 GMT

I have five 47GB SCSI drives in software RAID 0 off an Adaptec AHA-2940
Wide/Ultra SCSI card. They're all on the single external channel of the
card, and they're properly terminated. The machine is running Red Hat 7.2
with a self-compiled 2.4.23 kernel.

The problem is that the SCSI bus will hang very ungracefully after a few
minutes of heavy use on the RAID array. I'm thinking this has to do with
the kernel running out of tagged command queues, so I've increased the
number of TCQs to the maximum of 253, but that only delays the problems,
rather than eliminating them. Is there a workaround for this?

Here's the error message:

Dec 29 00:43:33 starfleet kernel: scsi1:0:0:0: Attempting to queue an ABORT message
Dec 29 00:43:33 starfleet kernel: CDB: 0x2a 0x0 0x0 0xf4 0xe6 0x3f 0x0 0x3 0x30 0x0
Dec 29 00:43:33 starfleet kernel: scsi1: At time of recovery, card was not paused
Dec 29 00:43:33 starfleet kernel: >>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
Dec 29 00:43:33 starfleet kernel: scsi1: Dumping Card State in Data-out phase, at SEQADDR 0x7b
Dec 29 00:43:33 starfleet kernel: Card was paused
Dec 29 00:43:33 starfleet kernel: ACCUM = 0x0, SINDEX = 0x8, DINDEX = 0x8f, ARG_2 = 0xb
Dec 29 00:43:33 starfleet kernel: HCNT = 0x0 SCBPTR = 0x2
Dec 29 00:43:33 starfleet kernel: SCSISIGI[0x4] ERROR[0x0] SCSIBUSL[0x0] LASTPHASE[0x0]
Dec 29 00:43:33 starfleet kernel: SCSISEQ[0x1a] SBLKCTL[0x2] SCSIRATE[0x88] SEQCTL[0x10]
Dec 29 00:43:33 starfleet kernel: SEQ_FLAGS[0x20] SSTAT0[0x0] SSTAT1[0x2] SSTAT2[0x1]
Dec 29 00:43:33 starfleet kernel: SSTAT3[0x0] SIMODE0[0x0] SIMODE1[0xac] SXFRCTL0[0xa0]
Dec 29 00:43:33 starfleet kernel: DFCNTRL[0x3c] DFSTATUS[0x6d]
Dec 29 00:43:33 starfleet kernel: STACK: 0x0 0x191 0x199 0x98
Dec 29 00:43:33 starfleet kernel: SCB count = 65
Dec 29 00:43:33 starfleet kernel: Kernel NEXTQSCB = 20
Dec 29 00:43:33 starfleet kernel: Card NEXTQSCB = 42
Dec 29 00:43:33 starfleet kernel: QINFIFO entries: 42 53 29
Dec 29 00:43:33 starfleet kernel: Waiting Queue entries: 1:10
Dec 29 00:43:33 starfleet kernel: Disconnected Queue entries: 12:15 0:22 4:14 13:64 15:50 7:55 10:21 5:27 14:1 8:36 3:18 6:37 9:44 11:47
Dec 29 00:43:33 starfleet kernel: QOUTFIFO entries:
Dec 29 00:43:33 starfleet kernel: Sequencer Free SCB List:
Dec 29 00:43:33 starfleet kernel: Sequencer SCB Info:
Dec 29 00:43:33 starfleet kernel: 0 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0] SCB_TAG[0x16]
Dec 29 00:43:33 starfleet kernel: 1 SCB_CONTROL[0x68] SCB_SCSIID[0x17] SCB_LUN[0x0] SCB_TAG[0xa]
Dec 29 00:43:33 starfleet kernel: 2 SCB_CONTROL[0x68] SCB_SCSIID[0x47] SCB_LUN[0x0] SCB_TAG[0x2e]
Dec 29 00:43:33 starfleet kernel: 3 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x12]
Dec 29 00:43:33 starfleet kernel: 4 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0] SCB_TAG[0xe]
Dec 29 00:43:33 starfleet kernel: 5 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x1b]
Dec 29 00:43:33 starfleet kernel: 6 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x25]
Dec 29 00:43:33 starfleet kernel: 7 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x37]
Dec 29 00:43:33 starfleet kernel: 8 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x24]
Dec 29 00:43:33 starfleet kernel: 9 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x2c]
Dec 29 00:43:33 starfleet kernel: 10 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x15]
Dec 29 00:43:33 starfleet kernel: 11 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x2f]
Dec 29 00:43:33 starfleet kernel: 12 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0xf]
Dec 29 00:43:33 starfleet kernel: 13 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x40]
Dec 29 00:43:33 starfleet kernel: 14 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x1]
Dec 29 00:43:33 starfleet kernel: 15 SCB_CONTROL[0x6c] SCB_SCSIID[0x27] SCB_LUN[0x0] SCB_TAG[0x32]
Dec 29 00:43:33 starfleet kernel: Pending list:
Dec 29 00:43:33 starfleet kernel: 29 SCB_CONTROL[0x68] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 53 SCB_CONTROL[0x68] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 53 SCB_CONTROL[0x68] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 42 SCB_CONTROL[0x68] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 10 SCB_CONTROL[0x68] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 13 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 6 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:33 starfleet kernel: 38 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 4 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 30 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 2 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 59 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 35 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 16 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 54 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 25 SCB_CONTROL[0x6c] SCB_SCSIID[0x17] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 32 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 0 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 49 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 24 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 28 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 5 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 19 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 7 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 34 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 41 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 48 SCB_CONTROL[0x6c] SCB_SCSIID[0x7] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 51 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 57 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 52 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 11 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 56 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 17 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 43 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 9 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 22 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 8 SCB_CONTROL[0x6c] SCB_SCSIID[0x37] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 33 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 12 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 39 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 40 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 58 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 26 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 45 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 3 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 46 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 23 SCB_CONTROL[0x6c] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 14 SCB_CONTROL[0x68] SCB_SCSIID[0x47] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 55 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 21 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 27 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 1 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 36 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 18 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 37 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 44 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 47 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 15 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 64 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: 50 SCB_CONTROL[0x68] SCB_SCSIID[0x27] SCB_LUN[0x0]
Dec 29 00:43:34 starfleet kernel: Kernel Free SCB list: 31 63 62 61 60
Dec 29 00:43:34 starfleet kernel: DevQ(0:0:0): 0 waiting
Dec 29 00:43:34 starfleet kernel: DevQ(0:1:0): 0 waiting
Dec 29 00:43:34 starfleet kernel: DevQ(0:2:0): 0 waiting
Dec 29 00:43:34 starfleet kernel: DevQ(0:3:0): 0 waiting
Dec 29 00:43:34 starfleet kernel: DevQ(0:4:0): 0 waiting
Dec 29 00:43:34 starfleet kernel: DevQ(0:5:0): 0 waiting
Dec 29 00:43:34 starfleet kernel:
Dec 29 00:43:34 starfleet kernel: <<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>> 

-- 
-- Skylar Thompson (skylar@cs.earlham.edu)
-- http://cs.earlham.edu/~skylar/