On Wed, Oct 09, 2013 at 12:13:56AM +0200, Gabriel de Perthuis wrote: > Le 06/10/2013 17:50, Gabriel de Perthuis a écrit : > > Le 06/10/2013 12:38, Cyril B. a écrit : > >> Hello, > >> > >> I get the following oops immediately after booting on 3.10.15. > >> Everything works fine in 3.10.10. Both the backing and cache devices are > >> on top of mdadm. > > > > Reverting c0f04d88e46d14de51f4baebb6efafb7d59e9f96 fixes it; it was one > > of the few commits that's in 3.12 and -stable but not in > > bcache-for-3.11. That commit causes bch_insert_data to be called with > > an unset op.cache_bio. > > Pinging stable, > http://git.kernel.org/linus/c0f04d88e46d14de51f4baebb6efafb7d59e9f96 > should be reverted. It was in 3.11.4 and 3.10.15 (and 3.12-rc3). > It breaks bcache's writeback mode by calling bch_writeback_data without > setting cache_bio (it's more visible here[1]). There's a bit of > indirection through closure calls, but it could never work. Greg - I screwed up on that patch (and I'm still scratching my head as to how testing missed it) - it's a two line fix I'll be mailing off to Linus shortly, or if you don't want to wait for that reverting it might be better (though there was a data corruption bug that users reported that fixed, so I'd be hesitent there): Here's the fix I just mailed out, just waiting on a bit of outside testing to mail it to Linus: http://permalink.gmane.org/gmane.linux.kernel.bcache.devel/2113 -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
