** Summary changed: - fallocate produces zero-size files on zfs in Jammy + fallocate with FALLOC_FL_ZERO_RANGE produces zero-size files on zfs in Jammy
** Description changed: - I came across this error when testing various mysql setups in an LXD - container and managed to reproduce it consistently. I'm unable to - reproduce on Ubuntu desktop or server though since the prerequisites are - probably handled properly there. + [Summary] + + When running Jammy on zfs or LXD with a zfs pool on a Jammy host, + fallocate creates a zero-sized file. + + The issue was originally found when installing mysql on LXD, where + fallocate would create a zero-sized ib_logfile1 file. The original + information in this bug is based on that. + + [Steps to Reproduce] + + touch foo.img + fallocate -z -l 10M foo.img + ls -la foo.img + + On a non-zfs Jammy system this will show something like: + -rw-r--r-- 1 root root 10M ... + + while on zfs it will show: + -rw-rw-r-- 1 root root 0 ... + + [Original Description] + I came across this error when testing various mysql setups in an LXD container and managed to reproduce it consistently. I'm unable to reproduce on Ubuntu desktop or server though since the prerequisites are probably handled properly there. ProblemType: Package DistroRelease: Ubuntu 20.04 Package: mysql-server-8.0 8.0.28-0ubuntu0.20.04.3 ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30 Uname: Linux 5.15.0-25-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.23 Architecture: amd64 CasperMD5CheckResult: skip Date: Fri Apr 15 21:31:09 2022 Dmesg: ErrorMessage: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1 KernLog: Logs.var.log.daemon.log: MySQLConf.etc.mysql.conf.d.mysql.cnf: [mysql] MySQLConf.etc.mysql.conf.d.mysqldump.cnf: [mysqldump] quick quote-names max_allowed_packet = 16M MySQLConf.etc.mysql.my.cnf: Error: [Errno 40] Too many levels of symbolic links: '/etc/mysql/my.cnf' MySQLVarLibDirListing: ['ibdata1', 'ib_logfile0', '#innodb_temp', 'debian-5.7.flag', '#ib_16384_0.dblwr', 'client-cert.pem', 'undo_001', 'server-cert.pem', 'mysql.ibd', '#ib_16384_1.dblwr', 'client-key.pem', 'ca-key.pem', 'sys', 'private_key.pem', 'mysql', 'undo_002', 'binlog.index', 'performance_schema', 'ib_buffer_pool', 'auto.cnf', 'ib_logfile1', 'public_key.pem', 'ca.pem', 'server-key.pem'] ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-5.15.0-25-generic root=UUID=93666562-b5e4-4fb4-ba8c-7b42a3e6bf61 ro quiet splash mem_sleep_default=deep vt.handoff=7 Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: N/A RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.6 SourcePackage: mysql-8.0 Title: package mysql-server-8.0 8.0.28-0ubuntu0.20.04.3 failed to install/upgrade: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Bug watch added: github.com/openzfs/zfs/issues #13329 https://github.com/openzfs/zfs/issues/13329 ** Also affects: zfs via https://github.com/openzfs/zfs/issues/13329 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969247 Title: fallocate with FALLOC_FL_ZERO_RANGE produces zero-size files on zfs in Jammy To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/1969247/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
