[Bug 283224] zpool import concurrent imports will deadlock

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 09 Dec 2024 17:12:50 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283224

            Bug ID: 283224
           Summary: zpool import concurrent imports will deadlock
           Product: Base System
           Version: 13.4-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: Grau_Smue@md5hashing.net

Created attachment 255744
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=255744&action=edit
procstat -kka with redacted mounts/zvols/pools

A 'zpool import pool1 &' followed by 'zpool import pool2 &' resulted in neither
returning and subsequent zpool commands also not returning.

pool1 base dataset was mounted and accessible, but other datasets were not. 
pool2 did not seem to have gotten datasets mounted.  Both pools were multiple
disk pools, but the pool2 was a mirror with only 1 drive available, requiring a
complete dev search.

Kernel was 13.4p1

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