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Date:      Fri, 8 May 2020 09:13:44 -0400
From:      Steve Wills <>
To:        Joseph Mingrone <>,
Cc:,, Allan Jude <>
Subject:   Re: ZFS system can no longer boot - zfs_alloc()/zfs_free() mismatch
Message-ID:  <>
In-Reply-To: <>
References:  <>

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I didn't solve it, I avoided it by renaming the kernel directory and 
reinstalling the kernel, forcing the bits to be in a different physical 
location on disk... The only theory I had at the time was that the bits 
were beyond some arbitrary 4G limit or something, but that was just a 
wild idea. Good luck, that's super frustrating.


On 5/7/20 7:59 PM, Joseph Mingrone wrote:
> Hello everyone,
> As it says in the subject line, my system stopped booting for some
> unknown reason.  It might have been after upgrading from 12.1-p2 to
> -p4, but I'm unsure.  It sounds similar to this issue:
> Allan and I tried debugging for a few hours today, but without
> success.  We tried replacing the boot code and the loaders, but the
> result was the same.  We also tried booting from a usb thumb drive,
> then `set currdev=zfs:zroot/ROOT/default:` and `boot`, but the same
> error is shown.
> Steve and Kyle, did you ever solve this problem?
> Thanks,
> Joe

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