Date: Tue, 17 Jul 2018 13:17:54 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 229829] [zfs] scrubbing prevents shutdown and slows down startup Message-ID: <bug-229829-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229829 Bug ID: 229829 Summary: [zfs] scrubbing prevents shutdown and slows down startup Product: Base System Version: 11.2-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: d8zNeCFG@aon.at Scenario 1: - FreeBSD 11.2 - UFS root fs - 6 x 1.5 TB SATA disks in RAIDZ2 pool - The pool is being scrubbed - Issue "shutdown -p now" Actual result 1: - The system shuts down, shows that UFS fs has been synced - The system continues scrubbing (in what appears to be right after all "usual" kernel log messages) and does not power off Expected result 1: - The system stops scrubbing and powers off Scenario 2: - Continued from scenario 1 - Press hard reset button - The system starts booting into multi-user Actual result 2: - As soon as the pool is imported, scrubbing continues - As a result, system startup is extremely slow, the UFS fs check does not finish in a reasonable time Expected result 2: - Scrubbing should not continue right with pool import - System startup should be normal speed Scenario 3: - Continued from scenario 2 - Press hard reset button - Boot system single user - Run "fsck -p" in an effort to fix the UFS fs first; is successful - Run "zpool list status" Actual result 3: - The system starts scrubbing the pool immediately - As a result, "zpool list status" does not finish for a long time (actual duration can be given later) Expected result 3: - Scrubbing should not continue right with the pool import - zpool import and zpool list status should continue with normal speed In summary, I believe that the solution is that before shutdown, all scrubbing activities should be paused. Similarly, on boot any pool marked for scrubbing should be treated as if scrubbing were paused on it. -- You are receiving this mail because: You are the assignee for the bug.
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