[Bug 237963] panic: free: guard2 fail @ 0xcd8de040 + 2061 from unknown:0

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237963

crahman at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|Open                        |Closed
         Resolution|---                         |FIXED

--- Comment #4 from crahman at gmail.com ---
Somewhere between r348491 and r349154 this problem disappeared.

The only change I see that might have corrected it was 348867:

MFC r342747 (mmacy): zfsboot: support newer ZFS versions.

342747 is documented as:

zfsboot: support newer ZFS versions
declare v3 objset size/layout to fix userboot and possibly other loader issues

- fix for userboot assertion failure in zfs_dev_close in free due to out of
bounds write
- fix for zfs_alloc / zfs_free mismatch assertion failure when booting GPT on
BIOS

In any event /boot/loader compiled before this change fails and subsequent to
it works.

I'm closing the report since the bug has likely been fixed.

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