Package: zfs-dkms Version: 0.8.1-4~bpo10+1 Severity: critical Tags: upstream Justification: causes serious data loss
Dear Maintainer, recently I have noticed some instability on one of my machines. The mprime (https://www.mersenne.org/download/) Torture Tests would occasionaly show errors like "FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file." random commands would occasionaly segfault. While trying to narrow down the problem I have replaced the PSU, RAM and the CPU. Multiple hour long runs of memtest86 did not show any problem. Finally I was able to narrow down the reads from ZFS volumes as the trigger for the instability. Scrubbing the volume would cause mprime to error out especially quickly. As a workaround I switched the SIMD acceleration off by piping "scalar" to /sys/module/zfs/parameters/zfs_vdev_raidz_impl and /sys/module/zcommon/parameters/zfs_fletcher_4_impl and that made the system stable again. Here are the details on the hardware I'm using: Motherboard: X470 GAMING PLUS (MS-7B79) BIOS version: 7B79vAC CPU: Ryzen 5 2600 and Ryzen 5 2600X Please let me know if I can provide any other useful information for this issue. -- System Information: Debian Release: 10.1 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-6-amd64 (SMP w/12 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled 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 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 ii python3-distutils 3.7.3-1 Versions of packages zfs-dkms recommends: ii linux-libc-dev 4.19.67-2 ii zfs-zed 0.8.1-4~bpo10+1 ii zfsutils-linux 0.8.1-4~bpo10+1 zfs-dkms suggests no packages. -- debconf information: zfs-dkms/stop-build-for-unknown-kernel: true zfs-dkms/stop-build-for-32bit-kernel: true * zfs-dkms/note-incompatible-licenses:
