system hangup - I'm lost

[Bartosz Stec]

Oliver Lehmann wrote:
> Hi,
>
> My fileserver has sporadical hangups running 6.3:
>
> FreeBSD 6.3-STABLE #0: Thu Jun 19 00:21:00 CEST 2008
>     olivleh1 at nudel.salatschuessel.net:/usr/obj/i386-pentium3-6.3/usr/src/sys/NUDEL
>
> The exact release doesn't matter since it happened before. It always
> happens afer some time of having some load on the system (I'm building
> ports with tinderbox and during the build process it just hangs up).
>
> The system does nothing write out on the console, neither the CRT, nor
> the serial console.
>
> The system itself is:
>
> CPU: Intel Pentium III (845.64-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0x683  Stepping = 3
>   Features=0x387fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,PN,MMX,FXSR,SSE>
> real memory  = 805240832 (767 MB)
> avail memory = 778481664 (742 MB)
> ACPI APIC Table: <Intel  N440BX  >
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>  cpu0 (BSP): APIC ID:  1
>  cpu1 (AP): APIC ID:  0
> ioapic0 <Version 1.1> irqs 0-23 on motherboard
>
> while the diskspace is provided by an 3ware RAID:
>
> twa0: <3ware 9000 series Storage Controller> port 0x2400-0x24ff mem 0xf4101000-0xf41010ff,0xf4800000-0xf4ffffff irq 18 at device 11.0 on pci0
> twa0: INFO: (0x04: 0x0053): Battery capacity test is overdue: 
> twa0: INFO: (0x15: 0x1300): Controller details:: Model 9500S-4LP, 4 ports, Firmware FE9X 2.08.00.009, BIOS BE9X 2.03.01.052
>
> da0 at twa0 bus 0 target 0 lun 0
> da0: <AMCC 9500S-4LP  DISK 2.08> Fixed Direct Access SCSI-3 device 
> da0: 100.000MB/s transfers
> da0: 715224MB (1464778752 512 byte sectors: 255H 63S/T 91178C)
>
> I had - in the past - sometimes messages left which where indicating,
> that the system was not able to allocate swap space fast enough if I
> recall it correctly (_not_ out of swap space!) but the RAID is kinda
> fast imho.
>
>   Any idea what I could do to shed some more light on this behaviour?
>   Why it is happening and what really is causing it?
>   Would enabling the kernel debugger really help here? I mean the system
>   is really hanging up - except ping response it is not responding to
>   anything except the reset switch ;)
>
>    Greetings, Oliver
>
>
>   
Personally I'd rather bet on some hardware problem (overheating?) Try to 
install mbmon from ports. I had also similiar problems with old 
motherboards with swelled capacitors.

-- 
Bartosz Stec