Hello, My cache adventures (slow boot, btrfs ERRORs in dmesg) continue; I went to the btrfs IRC and xaba suggested that I run btrfs check with the latest btrfs-progs from Chris. I was surprised to see such a multitude of errors, most of which are: Extent back ref already exists for 951664640 parent 0 root 259 ref mismatch on [142340096 4096] extent item 1, found 2 Incorrect global backref count on 142340096 found 1 wanted 2 backpointer mismatch on [142340096 4096] Errors found in extent allocation tree or chunk allocation There is no free space entry for 2169298944-2176843776 cache appears valid but isnt 1103101952 free space inode generation (0) did not match free space cache generation (10978) The output of btrfs check can be found on: http://www33.zippyshare.com/v/18393891/file.html The output of dmesg (less interesting, though): http://www33.zippyshare.com/v/38517519/file.html I am running Arch Linux, kernel 12.0. I am a typical desktop user and I can''t say that I did anything out of the oridinary. When my boot has become slower, I cleared the cache and it helped, but the second time I did it I started seeing errors in dmesg. I will be happy to provide additional information. Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html