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Date:      Thu, 21 Jan 1999 19:40:17 GMT
From:      mfer@leirianet.pt (M Ferreira)
To:        freebsd-questions@FreeBSD.ORG
Subject:   Spontaneous system freeze
Message-ID:  <36a9824a.14675642@mail2.leirianet.pt>

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I'm trying to get 3.0-RELEASE to run as stable as possible on a PII
with aic7895 onboard scsi controller.

my dmesg output is:

Timecounter "i8254"  frequency 1193182 Hz  cost 3126 ns
Timecounter "TSC"  frequency 349069134 Hz  cost 140 ns
CPU: Pentium II (quarter-micron) (349.07-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x652  Stepping=2

Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,MMX,<b24>>
real memory  = 134217728 (131072K bytes)
avail memory = 127844352 (124848K bytes)
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x02 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x02 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.7.0
chip3: <Intel 82371AB USB host controller> rev 0x01 int d irq 11 on
pci0.7.2
chip4: <Intel 82371AB Power management controller> rev 0x02 on
pci0.7.3
vga0: <ATI model 4756 graphics accelerator> rev 0x3a int a irq 255 on
pci0.8.0
de0: <Digital 21140A Fast Ethernet> rev 0x20 int a irq 10 on pci0.10.0
de0: 21140A [10-100Mb/s] pass 2.0
de0: address 00:48:54:00:07:b1
ahc0: <Adaptec aic7895 Ultra SCSI adapter> rev 0x04 int a irq 5 on
pci0.12.0
ahc0: aic7895 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec aic7895 Ultra SCSI adapter> rev 0x04 int b irq 5 on
pci0.12.1
ahc1: Using left over BIOS settings
ahc1: aic7895 Wide Channel B, SCSI Id=7, 16/255 SCBs
Probing for devices on PCI bus 1:
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
psm0 at 0x60-0x64 irq 12 on motherboard
psm0: model Generic PS/2 mouse, device ID 0
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
npx0 on motherboard
npx0: INT 16 interface
Waiting 15 seconds for SCSI devices to settle
sa0 at ahc0 bus 0 target 5 lun 0
sa0: <HP T20 3.00> Removable Sequential Access SCSI2 device 
sa0: 3.300MB/s transfers
da4 at ahc1 bus 0 target 2 lun 0
da4: <SEAGATE ST34520W 1444> Fixed Direct Access SCSI2 device 
da4: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da4: 4340MB (8888924 512 byte sectors: 64H 32S/T 4340C)
da5 at ahc1 bus 0 target 3 lun 0
da5: <SEAGATE ST34520W 1444> Fixed Direct Access SCSI2 device 
da5: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da5: 4340MB (8888924 512 byte sectors: 64H 32S/T 4340C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM DCAS-32160W S65A> Fixed Direct Access SCSI2 device 
da0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da0: 2063MB (4226725 512 byte sectors: 255H 63S/T 263C)
da1 at ahc0 bus 0 target 1 lun 0
da1: <IBM DCAS-32160W S65A> Fixed Direct Access SCSI2 device 
da1: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da1: 2063MB (4226725 512 byte sectors: 255H 63S/T 263C)
changing root device to da0s1a

I'm having spontaneous freezes whenever I compile anything, be it a
kernel build or a port install.

Beeing more specific, it's a total system freeze. Nothing on the
console (have DDB in the kernel), no response to pings, and total
keyboard freeze.

Can anyone shed any light on this?

tia

M Ferreira


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