10.2-Beta i386..what's wrong..?

[Jason Unovitch]

 >> ..uh top quoting..
 >>
 >> Trying to mount root from zfs:zroot/ROOT/default [].
 >>
 >> Fatal double fault:
 >> eip = 0xc0b416f5
 >> esp = 0xe2673000
 >> ebp = 0xe2673008
 >> cpuid =0; apic id = 00
 >> panic: double fault
 >> cpuid = 0
 >> KDB stack backtrace:
 >> #0 0xc0b72832 at kdb_backtrace+0x52
 >> #1 0xc0b339cb at vpanic+0x11b
 >> #2 0xc0b338ab at panic+0x1b
 >> #3 0xc10556 at dblfault_handler+0xab
 >> Uptime: 11s
 >> ..
 >
 >Looks like the panic I received on my Soekris Net6501-70.
 >
 >Fixed in stable/10 in r285759:
 >https://svnweb.freebsd.org/changeset/base/285759
 >
 >Fixed in stable/9 in r285760:
 >https://svnweb.freebsd.org/changeset/base/285760
 >
 >--
 >Herbert

Herbert, in https://bugs.FreeBSD.org/201642 I had tracked down the 
commit that caused the issue on our Soekris 6501s.  Only between r284297 
-> r285662 in HEAD and between r284998 -> r285756 in stable/10 should be 
affected.

 >>>Ok, it is 10.2-BETA so I've tried 10.1-Release next...exactly the same,
 >>>ok tried 9.3-RELEASE .. the same!

Holm, if you are seeing this on 9.3-RELEASE and 10.1-RELEASE I'm not 
entirely convinced the cause is the same.

--
Jason