I am attempting to implement LM 9.0 on a 1.2GHz, 1GB Ram Server with
Adaptec 2940 SCSI disks.  Unfortunately the machine dies without
warning.

While I read with interest the Jack Coates description of the kernel for
2.4 I dug out the Kernel info for my machine and found the following
Kernel warnings.

Nov 22 04:06:22 access kernel: scsi0: WARNING no command
for scb 0 (cmdcmplt)
Nov 22 04:06:22 access kernel: QOUTPOS = 33
Nov 22 04:07:22 access kernel: scsi0:0:0:0: Attempting to
queue an ABORT message
Nov 22 04:07:22 access kernel: scsi0: Dumping Card State
while idle, at SEQADDR 0x7
Nov 22 04:07:22 access kernel: ACCUM = 0xc, SINDEX = 0xe,
DINDEX = 0x8c, ARG_2 = 0x0
Nov 22 04:07:22 access kernel: HCNT = 0x0 SCBPTR = 0xe
Nov 22 04:07:22 access kernel: SCSISEQ = 0x12, SBLKCTL =
0x2
Nov 22 04:07:22 access kernel:  DFCNTRL = 0x0, DFSTATUS =
0x29
Nov 22 04:07:22 access kernel: LASTPHASE = 0x1, SCSISIGI =
0x0, SXFRCTL0 = 0x80
Nov 22 04:07:22 access kernel: SSTAT0 = 0x5, SSTAT1 = 0xa
Nov 22 04:07:22 access kernel: STACK == 0x0, 0x147, 0xec,
0x3
Nov 22 04:07:22 access kernel: SCB count = 254
Nov 22 04:07:22 access kernel: Kernel NEXTQSCB = 10
Nov 22 04:07:22 access kernel: Card NEXTQSCB = 10
Nov 22 04:07:22 access kernel: QINFIFO entries:
Nov 22 04:07:22 access kernel: Waiting Queue entries:
Nov 22 04:07:22 access kernel: Disconnected Queue entries:
Nov 22 04:07:22 access kernel: QOUTFIFO entries:
Nov 22 04:07:22 access kernel: Sequencer Free SCB List: 14
3 5 0 10 15 13 2 4 9 12 7 11 8 6 1
Nov 22 04:07:22 access kernel: Sequencer SCB Info: 0(c
0x60, s 0x7, l 0, t 0xff) 1(c 0x60, s 0x7, l 0, t 0xff)
2(c 0x60, s 0x7, l 0, t 0xff) 3(c 0x60, s 0x7, l 0, t
0xff) 4(c 0x60, s 0x7, l 0, t 0xff) 5(c 0x60, s 0x7, l 0,
t 0xff) 6(c 0x60, s 0x37, l 0, t 0xff) 7(c 0x60, s 0x7, l
0, t 0xff) 8(c 0x60, s 0x7, l 0, t 0xff) 9(c 0x60, s 0x7,
l 0, t 0xff) 10(c 0x60, s 0x7, l 0, t 0xff) 11(c 0x60, s
0x7, l 0, t 0xff) 12(c 0x60, s 0x7, l 0, t 0xff) 13(c
0x60, s 0x7, l 0, t 0xff) 14(c 0x60, s 0x37, l 0, t 0xff)
15(c 0x60, s 0x7, l 0, t 0xff)
Nov 22 04:07:22 access kernel: Pending list: 208(c 0x60, s
0x7, l 0)
Nov 22 04:07:22 access kernel: Kernel Free SCB list: 14 4
214 11 103 226 105 204 38 235 47 49 1 28 113 246 238 61
249 115 110 26 6 220 93 229 209 65 102 233 25 50 29 43 237
52 5 67 250 13 3 234 76 64 17 42 36 71 223 112 245 114 111
240 55 218 228 24 63 95 69 225 107 34 16 215 213 54 46 31
232 66 230 252 244 79 119 21 37 239 40 109 75 247 227 98
41 88 108 222 51 231 248 9 216 117 212 219 32 253 19 118
83 104 217 106 73 2 221 211 92 251 241 15 243 23 0 53 96
224 35 236 33 242 81 58 116 123 122 121 120 127 126 125
124 131 130 129 128 135 134 133 132 139 138 137 136 143
142 141 140 147 146 145 144 151 150 149 148 155 154 153
152 159 158 157 156 163 162 161 160 167 166 165 164 171
170 169 168 175 174 173 172 179 178 177 176 183 182 181
180 187 186 185 184 191 190 189 188 195 194 193 192 199
198 197 196 203 202 201 200 207 206 205 100 57 56 60 27 68
70 72 80 12 89 94 99 97 101 18 44 7 210 45 48 62 8 22 20
74 78 82 59 77 85 87 86 39 84 30 91 90
Nov 22 04:07:22 access kernel: DevQ(0:0:0): 0 waiting
Nov 22 04:07:22 access kernel: DevQ(0:1:0): 0 waiting
Nov 22 04:07:22 access kernel: DevQ(0:2:0): 0 waiting
Nov 22 04:07:22 access kernel: DevQ(0:3:0): 0 waiting
Nov 22 04:07:22 access kernel: DevQ(0:6:0): 0 waiting
Nov 22 04:07:22 access kernel: (scsi0:A:0:0): Queuing a
recovery SCB
Nov 22 04:07:22 access kernel: scsi0:0:0:0: Device is
disconnected, re-queuing SCB
Nov 22 04:07:22 access kernel: Recovery code sleeping
Nov 22 04:07:22 access kernel: (scsi0:A:0:0): Abort Tag
Message Sent
Nov 22 04:07:22 access kernel: (scsi0:A:0:0): SCB 208 -
Abort Tag Completed.
Nov 22 04:07:22 access kernel: Recovery SCB completes
Nov 22 04:07:22 access kernel: Recovery code awake
Nov 22 04:07:22 access kernel: aic7xxx_abort returns
0x2002

This is also the Last message in Syslog.  Is this an indication that the
SCSI Controller is going bad?

--
Albert E. Whale - CISSP
http://www.abs-comptech.com
----------------------------------------------------------------------
ABS Computer Technology, Inc. - ESM, Computer & Networking Specialists
Sr. Security, Network, and Systems Consultant
Board of Directors - InfraGard - Pittsburgh, PA



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