https://bugzilla.kernel.org/show_bug.cgi?id=205655 Bug ID: 205655 Summary: kvm with cache=none and btrfs -> corrupted file system Product: Virtualization Version: unspecified Kernel Version: 4.9 4.19 5.3.12 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: denis.ovsyannikov@xxxxxxxxx Regression: No hello we use kvm with disks formatted in btrfs when we turned on the mode "cache=none" got data corruption other modes work well we tested it on three servers and the result is always repeated we tested on three operating systems(debian 9, debian 10, manjaro with kernel 5.3.12) fstab UUID=a49494f2-35a4-4a9c-aab0-1afc905c02c2 /mnt/test btrfs defaults 0 2 dmesg [675174.887900] BTRFS error (device sde1): bdev /dev/sde1 errs: wr 0, rd 0, flush 0, corrupt 2137, gen 0 [102857.086874] BTRFS warning (device sdc1): csum failed root 256 ino 260 off 1735843840 csum 0xf69f8dd2 expected csum 0x96e71981 mirror 1 -- You are receiving this mail because: You are watching the assignee of the bug.
