Juergen Heberling wrote:
Hi all
Please suggest some way of diagnosing this problem:
System freezes after being up in production and apparently stable for
several weeks, no dump, no error message, nothing on the console - so I
suspect hardware.
> ...
Here is my dmesg, long lines were wrapped:
...
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
cpu2 (AP): APIC ID: 6
cpu3 (AP): APIC ID: 7
...
ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port
0x2400-0x24ff,0x2000-0x20ff
mem 0xdd200000-0xdd201fff irq 32 at device 2.0 on pci3
ahd0: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port
0x2c00-0x2cff,0x2800-0x28ff
mem 0xdd202000-0xdd203fff irq 33 at device 2.1 on pci3
ahd1: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
I've had freezes as you describe on two different servers with ahd and
SMP. The solution was to turn SMP off, unfortunately :(
bye
av.
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