There is also LVM2 in the picture, but I'm not pointing any fingers. My gut feeling is this smells like some cache type thing waking up to sync/flush buffers an

There is also LVM2 in the picture, but I'm not pointing any fingers. My gut feeling is this smells like some cache type thing waking up to sync/flush buffers and the pointer they follow lands them in the middle of some unwanted region. https://en.wikipedia.org/wiki/Dm-cache https://en.wikipedia.org/wiki/Dm-cache But I didn't see any evidence of caching in the BZ, so it's a potential redherring. The data spanning the corrupted regions was an RSA key, which is fine... some folks might get their kackles up, but meh... I'm not sure why a key file would be cached, unless it's a read cache, and then the normal vfs cache would be where.