Thank you Remy! Your recommendation solved the problem. Its been running for 
over a day now without a single hiccup. 

thanks also to everyone else who took time to respond with help and 
suggestions. 



At the risk of being a bother, were you able to get all four ethernet devices 
working? on mine, only the first two are working. the other two get errors on 
ioport allocation. 

em2: <Intel(R) PRO/1000 Legacy Network Connection 1.0.6> mem 
0xfdbe0000-0xfdbfffff irq 61 at device 1.0 on pci8 
em2: 0x40 bytes of rid 0x20 res 4 failed (0, 0xffffffffffffffff). 
em2: Unable to allocate bus resource: ioport 
em2: Allocation of PCI resources failed 
device_attach: em2 attach returned 6 
em2: <Intel(R) PRO/1000 Legacy Network Connection 1.0.6> mem 
0xfdbc0000-0xfdbdffff irq 62 at device 1.1 on pci8 
em2: 0x40 bytes of rid 0x20 res 4 failed (0, 0xffffffffffffffff). 
em2: Unable to allocate bus resource: ioport 
em2: Allocation of PCI resources failed 
device_attach: em2 attach returned 6 


ron. 


----- Original Message -----

From: "Remy Nonnenmacher" <[email protected]> 
To: [email protected], [email protected] 
Sent: Tuesday, March 17, 2015 4:39:33 AM 
Subject: Re: sun x4500 and smp 

Hi Ron, 

Fighted the same problem on mine. It seems to be a problem of interrupts 
dynamic routing on those old good opterons. 

I fixed it by sticking all interrupts to processor 0 (cpuset -l 0 -x 
..). Since then, it works without any trouble. 


On 03/16/15 21:11, [email protected] wrote: 
> I am using a sunfire x4500 (thumper) with a pair of dual-core opteron 290 
> processors, running 10.1-RELEASE to serve up zfs filesystems via nfs and 
> samba. 
> 
> The system reboots periodically when under load. I cannot find anything in 
> any of the system logs that would account for why it rebooted, it just goes 
> away for a while and comes back in a few minutes. 
> 
> Out of desperation, I tried disabling all but one of the processors. 
> (hint.lapic.x.disabled=1 where x == 1, 2 and 3). Oddly enough the system 
> doesn't reboot anymore. 
> 
> Is there any known issues about SMP not working on a sunfire x4500? I have 
> searched the mail archives and haven't found anything useful. 
> 
> thanks in advance for any help or suggestions. 
> ron. 
> 
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