https://bugzilla.kernel.org/show_bug.cgi?id=89621 --- Comment #5 from Theodore Tso <tytso@xxxxxxx> --- Yes, barriers are enabled by default, and with cache=none, the flush commands *should* be sent down to the host device. It might be worth doing a quick blktrace to make sure the host device is getting the cache flushes and they aren't getting dropped by qemu or by mdraid, but the configuration at least looks sane. In the cases where you've seen the problem, have there been any sense where either (a) the host has suffered a crash or shutdown or power drop, or (b) the guest VM has been abruptly shutdown or killed without triggering a normal guest OS shutdown? -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
