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Subject: Re: Repeatable kernel panic on -CURRENT using ZFS over SATA
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Dag-Erling Smørgrav wrote:
> Bill Hacker <askbill@conducive.net> writes:
>> Short answer - you are overstressing your very marginal hardware.
> 
> You're completely off the mark.  Steven is experiencing a well-known bug
> in the ata driver.
> 
> DES

That may well be, and that part needs coder's attention.

But hardware DOES matter. Code fixes can't entirely solve that.

ZFS is just too demanding of resources for that rig [1] to usefully support in 
512MB of RAM, and 'dumb' controllers do not help.

NB: He does have decent power. External housing for the SATA array.

Bill

[1] Per his dmesg and a google of the various kit reported. Decent PCI slots 
aside, no longer a match for a current Mac Mini or a Dell laptop w/r RAM, CPU, 
or FSB speed.