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Date:      Wed, 12 Apr 2023 18:27:46 +0200
From:      FreeBSD User <freebsd@walstatt-de.de>
To:        Charlie Li <vishwin@freebsd.org>
Cc:        Cy Schubert <Cy.Schubert@cschubert.com>, Rick Macklem <rick.macklem@gmail.com>, Martin Matuska <mm@freebsd.org>, src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org
Subject:   Re: git: 2a58b312b62f - main - zfs: merge openzfs/zfs@431083f75
Message-ID:  <20230412182813.63180c6a@thor.intern.walstatt.dynvpn.de>
In-Reply-To: <70739834-4eea-db30-63be-556bcfd881a1@freebsd.org>
References:  <202304031513.333FD6qw014903@gitrepo.freebsd.org> <20230403231444.CF48911F@slippy.cwsent.com> <20230403232549.73E331A2@slippy.cwsent.com> <CAM5tNy45XwDNGK27i_Z_96H-sLDXXHuaZbSQ=E7507eCiCvgJw@mail.gmail.com> <20230403235851.84C0467@slippy.cwsent.com> <CAM5tNy6TMoXAKyfWq_psEjK0zy9j%2B=7yzp1vRirAfTdXBxabSQ@mail.gmail.com> <CAM5tNy64HTeC8%2BOT_SHg1osnKKAH3_qQJkyWFuOy-LDAFVzu%2BA@mail.gmail.com> <20230404052811.DA2172C1@slippy.cwsent.com> <7c75b934-cb0a-b32e-bc19-b1e15e8cf3aa@freebsd.org> <20230409154042.0685a273@cschubert.com> <ba938b23-a6d0-f673-ffc8-b3d9d59e53a4@freebsd.org> <E3DD3607-887C-48C4-9031-5204DD84E6A5@cschubert.com> <a99a20b9-c348-89f6-db37-604f72002da4@freebsd.org> <707e4671-d746-aa23-e340-6eb8f50f78c6@freebsd.org> <20230409205826.7802259d@cschubert.com> <4e85eb84-f0cc-2f8c-d3d9-1e016ede042a@freebsd.org> <20230410165406.51bcd958@cschubert.com> <70739834-4eea-db30-63be-556bcfd881a1@freebsd.org>

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[-- Attachment #1 --]
Am Wed, 12 Apr 2023 11:51:09 -0400
Charlie Li <vishwin@freebsd.org> schrieb:

> Cy Schubert wrote:
> > I have a "sandhbox" pool, called t, used for /usr/obj and ports wrkdirs, and other writes
> > I can easily recreate on my laptop. Here are the results of my tests.
> > 
> > Method:
> > 
> > Initially I copied my /usr/obj from my two build machines (one amd64.amd64 and an
> > i386.i386) to my "sandbox" zpool.
> > 
> > Next, with block_cloning disabled I did cp -R of the /usr/obj test files. Then a diff -qr.
> > They source and target directories were the same.
> > 
> > Next, I cleaned up (rm -rf) the target directory to prepare for the
> > block_clone enabled test.
> > 
> > Next, I did zpool checkpoint t. After this, zpool upgrade t. Pool t now has block_cloning
> > enabled.
> > 
> > I repeated the cp -R test from above followed by a diff -qr. Almost
> > every file was different. The pool was corrupted.
> > 
> > I restored the pool by the following removing the corruption:
> > 
> > 
> > slippy# zpool export t
> > slippy# zpool import --rewind-to-checkpoint t
> > slippy#
> > 
> > It is recommended that people avoid upgrading their zpools until the
> > problem is fixed.
> >   
> As of af7624ed3145, I just did this with an md(4)-backed test pool, 
> though with the second `cp -R` landing in a separate dataset, created 
> and destroyed for each test. No corruption either way. However, my 
> poudriere builds still output/package corrupted files (particularly 
> those with null characters), probably after install(1) invocations (not 
> cp(1)).
> 

I still have corrupt files on the /usr/ports tree (located on ZFS, with feature@block_cloning  active):

[...]
Installing man pages and online manual
mkdir /usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24
cd /usr/ports/www/apache24/work/httpd-2.4.57/docs/manual && cp -rp *
/usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24 install  -m 0644
/usr/ports/www/apache24/files/no-accf.conf
/usr/ports/www/apache24/work/stage/usr/local/etc/apache24/Includes/ install  -m 0644
/usr/ports/www/apache24/files/README_modules.d
/usr/ports/www/apache24/work/stage/usr/local/etc/apache24/modules.d/ /usr/bin/strip
/usr/ports/www/apache24/work/stage/usr/local/libexec/apache24/mod_*.so /bin/rm -f
/usr/ports/www/apache24/work/stage/usr/local/share/apache24/build/ecp.???????? 2>/dev/null
install  -m 555 /usr/ports/www/apache24/work/httpd-2.4.57/support/check_forensic
/usr/ports/www/apache24/work/stage/usr/local/sbin ====> Compressing man pages (compress-man)
===> Staging rc.d startup script(s) ===>  Installing for apache24-2.4.57 ===>   Registering
installation for apache24-2.4.57 pkg-static: pkg_checksum_hash_sha256_file(read failed):
Input/output error pkg-static: pkg_checksum_hash_sha256_file(read failed): Input/output error
pkg-static: pkg_checksum_hash_sha256_file(read failed): Input/output error pkg-static:
pkg_checksum_hash_sha256_file(read failed): Input/output error pkg-static:
pkg_checksum_hash_sha256_file(read failed): Input/output error pkg-static:
pkg_checksum_hash_sha256_file(read failed): Input/output error

www/apache24 is now ALWAYS droping this corruption, even after scrubbing the pool.

This one is the same in my case:

[...]

cd /usr/ports/devel/ruby-gems/work/stage/usr/local/ && /usr/bin/find -ds
lib/ruby/gems/3.1/doc/ ! -type d >> /usr/ports/devel/ruby-gems/work/.PLIST.mktmp ====>
Compressing man pages (compress-man) ===>>> Starting check for runtime dependencies
===>>> Gathering dependency list for devel/ruby-gems from ports
===>>> Dependency check complete for devel/ruby-gems

===>>> All >> rubygem-addressable-2.8.1 >> devel/ruby-gems (3/27)

===>  Installing for ruby31-gems-3.4.10
===>   Registering installation for ruby31-gems-3.4.10 as automatic
pkg-static: pkg_checksum_hash_sha256_file(read failed): Input/output error
pkg-static: pkg_checksum_hash_sha256_file(read failed): Input/output error
pkg-static: pkg_checksum_hash_sha256_file(read failed): Input/output error
pkg-static: pkg_checksum_hash_sha256_file(read failed): Input/output error
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/devel/ruby-gems


Pool is then marked corrupt (was scrubbed after the last corruption):

[...]

  pool: POOL00
 state: ONLINE
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A
  scan: scrub in progress since Wed Apr 12 18:07:02 2023
        1.45T scanned at 2.01G/s, 139G issued at 193M/s, 13.2T total
        0B repaired, 1.02% done, 19:49:53 to go
config:

        NAME              STATE     READ WRITE CKSUM
        POOL00          ONLINE       0     0     0
          raidz1-0        ONLINE       0     0     0
            gpt/pool00  ONLINE       0     0     0
            gpt/pool01  ONLINE       0     0     0
            gpt/pool02  ONLINE       0     0     0
            gpt/pool03  ONLINE       0     0     0

errors: 22 data errors, use '-v' for a list

[...]

errors: Permanent errors have been detected in the following files:

        /usr/ports/devel/ruby-gems/work/stage/usr/local/lib/ruby/site_ruby/3.1/rubygems/optparse/lib/optionparser.rb
        /usr/ports/devel/ruby-gems/work/stage/usr/local/lib/ruby/site_ruby/3.1/rubygems/optparse.rb
        /usr/ports/www/apache24/work/stage/usr/local/www/apache24/icons/small/blank.gif
        /usr/ports/devel/ruby-gems/work/stage/usr/local/lib/ruby/site_ruby/3.1/rubygems/resolver/molinillo.rb
        /usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24/images/left.gif
        /usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24/images/right.gif
        /usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24/images/down.gif
        /usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24/images/pixel.gif
        /usr/ports/devel/ruby-gems/work/stage/usr/local/lib/ruby/site_ruby/3.1/rubygems/tsort.rb
        /usr/ports/www/apache24/work/stage/usr/local/share/doc/apache24/images/up.gif


-- 
O. Hartmann

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