SMP and NFS

[Erik Norgaard]

M wrote:
> I have a system that is being used as a high performance NFS server
> 
> FreeBSD nfs2 5.3-RELEASE-p2 FreeBSD 5.3-RELEASE-p2 #1: Tue Jan  4  
> 19:14:40 EST 2005     root at nfs2:/usr/obj/usr/src/sys/NFS  i386
> 
> Two CPUs (tried hyperthreading and not), 4 GB of memory
> 
> CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2400.10-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
>    
> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE 
> ,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HT
> T,TM,PBE>
>   Hyperthreading: 2 logical CPUs
> real memory  = 4160225280 (3967 MB)
> avail memory = 4073271296 (3884 MB)
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>  cpu0 (BSP): APIC ID:  0
>  cpu1 (AP): APIC ID:  6
> 
> The NFS exported filesystem is on a Q-Logic FC card
> 
> isp0: <Qlogic ISP 2312 PCI FC-AL Adapter> port 0x4000-0x40ff mem  
> 0xf8300000-0xf8300fff irq 28 at device 3.0 on pci3
> isp0: [GIANT-LOCKED]
> 
> The disk is formated UFS2 and is big, but not *that* big yet
> 
> /dev/da1s1d 471860682 206516934 227594894    48%    /usr/local/export
> 
> Every 12  hours or so the system crashes with a hard lock and no error  
> messages in /var/log/messages or on the screen. I've moved all the  
> disks to a duplicate system. If it continues to lock hard what's the  
> possibility the issue is SMP?

See this message from yesterday (submitted to announce):

ftp://ftp.freebsd.org/pub/FreeBSD/ERRATA/notices/FreeBSD-EN-05:01.nfs.asc

In short, update your system.

Cheers, Erik
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