Date: Thu, 17 Dec 2015 09:02:03 -0700 From: Alan Somers <asomers@freebsd.org> To: Andriy Gapon <avg@freebsd.org> Cc: "src-committers@freebsd.org" <src-committers@freebsd.org>, svn-src-projects@freebsd.org Subject: Re: svn commit: r292353 - projects/zfsd/head/tests/sys/cddl/zfs/tests/cli_root/zfs_set Message-ID: <CAOtMX2gk%2BhhPrg-9Zva%2BSCLVLHu%2BykJmNPhZvJu8H6-N3vVBng@mail.gmail.com> In-Reply-To: <5671E0AA.1020102@FreeBSD.org> References: <201512161930.tBGJUiTn047536@repo.freebsd.org> <5671E0AA.1020102@FreeBSD.org>
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On Wed, Dec 16, 2015 at 3:07 PM, Andriy Gapon <avg@freebsd.org> wrote: > On 16/12/2015 21:30, Alan Somers wrote: >> Author: asomers >> Date: Wed Dec 16 19:30:44 2015 >> New Revision: 292353 >> URL: https://svnweb.freebsd.org/changeset/base/292353 >> >> Log: >> Disable read-only testing of space usage properties. >> >> These properties (used, available, referenced) are easily influenced by >> internal machinations in ZFS, and currently cause random failures of this >> test when run on a system running the BP workers. >> >> The test itself checks that the properties can't be changed, and goes >> farther than just asserting that the 'zfs set' command fails: it also checks >> that the property's value still matches its original value. >> >> For some reason, however, background activity causes short-term changes in >> these values, that appear not to involve either an ioctl (at least one that >> would show up in 'zpool history') or filesystem accesses. This is hopefully >> still only temporary just to get the tests passing. >> >> Submitted by: Will >> Sponsored by: Spectra Logic Corp > > FWIW, > hhttps://github.com/avg-I/openzfs/commit/e7a8782eb9ea84e6db92891dfd5a74c655d0a44a > The change is a bit lame, but better than nothing. > Interesting. We had no idea that's what was causing those properties to change. We thought it must be the result of some unknown background process.
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