Panic in ZFS, solaris assert: sa.sa_magic == 0x2F505A

Phil Murray pmurray at
Tue Apr 15 05:49:18 UTC 2014

On 11/04/2014, at 10:36 pm, Andriy Gapon <avg at> wrote:

> on 11/04/2014 11:02 Phil Murray said the following:
>> Hi there,
>> I’ve recently experienced two kernel panics on 8.4-RELEASE (within 2 days of each other, and both around the same time of day oddly) with ZFS. Sorry no dump available, but panic below.
>> Any ideas where to start solving this? Will upgrading to 9 (or 10) solve it?
> By chance, could the system be running zfs recv at the times when the panics
> happened?

I think it might be related to this bug reported on ZFS-on-linux when upgrading from v3 -> v5, which is exactly what I’ve done on this machine:

In my case, the bogus sa.sa_magic value looks like this:

   panic:solaris asset: sa.sa_magic == 0x2F505A (0x5112fb3d == 0x2f505a), file: 

   $ date -r 0x5112fb3d
   Thu Feb  7 13:54:21 NZDT 2013



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