Hi, with the latest btrfs for-linus I'm seeing seeing occasional btrfs_alloc_free_block warnings on several nodes in our ceph cluster.
Before the warning there is an additional block rsv -28 message, but there is plenty of free space on the disk. [201653.774412] btrfs: block rsv returned -28 [201653.774415] ------------[ cut here ]------------ [201653.779846] WARNING: at fs/btrfs/extent-tree.c:5980 btrfs_alloc_free_block+0x347/0x360 [btrfs]() The complte trace is here: http://pastebin.com/0SFeZReg The extent-tree.c:5980 is in use_block_rsv(): 5974 if (ret) { 5975 static DEFINE_RATELIMIT_STATE(_rs, 5976 DEFAULT_RATELIMIT_INTERVAL, 5977 /*DEFAULT_RATELIMIT_BURST*/ 2); 5978 if (__ratelimit(&_rs)) { 5979 printk(KERN_DEBUG "btrfs: block rsv returned %d\n", ret); 5980 WARN_ON(1); 5981 } 5982 ret = reserve_metadata_bytes(root, block_rsv, blocksize, 0); Thanks, Christian -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
