Filed bug here https://bugzilla.kernel.org/show_bug.cgi?id=204557
kernel 5.2.8 progs 5.2.1 I'm getting a kernel warning, and tainted kernel following 'btrfs scrub start' on a file system that was previously corrupted during failure to clear v1 cache. It's valid to complain about a problem with the file system that can't be fixed. But for the scrub to abort and also taint the kernel sounds like a bug? -- Chris Murphy
