Package: zfs-dkms Version: 0.8.6-1~bpo10+1 Severity: important Tags: upstream
ZFS seems to not recognize data errors without doing a scrub. Steps to reproduce: - create a small partition (1GB) - "zpool create -m /zfs zfspool /dev/..." - create a 800MB testfile "dd if=/dev/zero of=/zfs/testfile bs=1M count=800" - "shasum /zfs/testfile" -> checksum A - change a byte somwhere in /dev/... - empty caches "sync; echo 3 > /proc/sys/vm/drop_caches" - "shasum /zfs/testfile" -> checksum B - "zpool status" shows no errors - checksums A and B differ, the file is corrupted without being noticed - do "zpool scrub zfspool" - "zpool status" shows the error Version 2.0.2 has the same issue. According to another guy version 0.8.4 from Ubuntu is not affected. -- System Information: Debian Release: 10.8 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.9.0-0.bpo.5-amd64 (SMP w/4 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=de_DE.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages zfs-dkms depends on: ii debconf [debconf-2.0] 1.5.71 ii dkms 2.6.1-4 ii file 1:5.35-4+deb10u2 ii libc6-dev [libc-dev] 2.28-10 ii libpython3-stdlib 3.7.3-1 ii lsb-release 10.2019051400 ii perl 5.28.1-6+deb10u1 ii python3-distutils 3.7.3-1 Versions of packages zfs-dkms recommends: ii linux-libc-dev 4.19.171-2 pn zfs-zed <none> pn zfsutils-linux <none> Versions of packages zfs-dkms suggests: ii debhelper 12.1.1 -- debconf information excluded
