Date: Mon, 17 Jun 2019 12:20:24 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 238663] [UFS] Corrupted files since migration to FreeBSD11 Message-ID: <bug-238663-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D238663 Bug ID: 238663 Summary: [UFS] Corrupted files since migration to FreeBSD11 Product: Base System Version: 11.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: nicolas.masse@stormshield.eu Since we migrated from FreeBSD-10 to FreeBSD11, we see that some files get corrupted. We were able to reproduce the issue by running a script with the following scenario: - mount the filesystem read-write with the -async flag - decompress some archives - unmount the filesystem - remount the filesystem readonly Once we do that, we generally see one or two files being corrupted. Note that this only happens when using some recents SSD. Also note that unmounting the filesystem is necessary to see the problem. W= hen accessing the files before the umount command, they all seems ok. AFAICS, this looks like as if one page was loaded in memory, but wasn't wri= tten physically on the disk. Here is a shortned version of the script I am using: #!/bin/sh mount -o async $PARTITION /mnt/disk tar --no-same-owner -C /mnt/disk/new_dir -zxUf archive1.tgz 7zr x -y -bd -o/mnt/disk ./archive2.7z 7zr x -y -bd -o/mnt/disk ./archive3.7z mv /mnt/disk/dir /mnt/disk/old_dir mv /mnt/disk/new_dir /mnt/disk/dir rm -rf /mnt/disk/old_dir umount $MAJ_PARTITION /mnt/disk/ mount -o ro $MAJ_PARTITION /mnt/disk/ check_integrity # here we check the md5 of the decompressed files The filesystem use the following tunings: SNI40A16C0818A9>tunefs -p /dev/ufs/disk tunefs: POSIX.1e ACLs: (-a) disabled tunefs: NFSv4 ACLs: (-N) disabled tunefs: MAC multilabel: (-l) disabled tunefs: soft updates: (-n) disabled tunefs: soft update journaling: (-j) disabled tunefs: gjournal: (-J) disabled tunefs: trim: (-t) enabled tunefs: maximum blocks per file in a cylinder group: (-e) 4096 tunefs: average file size: (-f) 16384 tunefs: average number of files in a directory: (-s) 64 tunefs: minimum percentage of free space: (-m) 8% tunefs: space to hold for metadata blocks: (-k) 2616 tunefs: optimization preference: (-o) time tunefs: volume label: (-L) main --=20 You are receiving this mail because: You are the assignee for the bug.=
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