[OmniOS-discuss] Kernel panic on using iSCSI target on same host, differences between OmniOS r151006 and r151008 ?

[Franz Schober]

Although the creation of the zpool worked on OmniOS r151006y, the zfs 
send I wanted to test on the pool failed with a kernel panic on r151006y 
also.

zfs create test/testds
dd if=/dev/zero of=/test/testds/file1 bs=1M count=50
dd if=/dev/zero of=/test/testds/file2 bs=1M count=50

zfs snapshot test/testds at test
zfs send -R test/testds at test | pv > /dev/null
> Hi,
>
> when using a device provided by iSCSI COMSTAR target on the same host 
> for a zpool, the system (OmniOS r151008j) raised a kernel panic
> after a timeout of the COMSTAR device at the first try, on the second 
> attempt it just did not work.
>
> On OmniOS r151006y the same worked without any problems.
>
> Are there any possible known changes on COMSTAR and ZFS regarding
> this problem in between the two stable OmniOS versions ?
>
> Details, why to do that anyway :-) and a crash dump are available at 
> https://www.illumos.org/issues/4589
>
> Thx a lot,
> Franz
>