G'day, Using Josef's btrfs-work bacae123 (+ ceph-client 9aae8faf), I can consistently reproduce the following btrfs warning by simply creating and starting a new btrfs-based ceph file system: [ 549.767234] ------------[ cut here ]------------ [ 549.767276] WARNING: at fs/btrfs/inode.c:2143 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]() [ 549.767305] Hardware name: System Product Name [ 549.767331] Modules linked in: loop btrfs zlib_deflate crc32c libcrc32c dm_mod tpm_tis psmouse tpm tpm_bios i2c_piix4 i2c_core shpchp pci_hotplug button processor nfs lockd nfs_acl auth_rpcgss sunrpc sd_mod ata_generic ahci libahci libata r8169 mii ohci_hcd ehci_hcd scsi_mod thermal fan thermal_sys [last unloaded: scsi_wait_scan] [ 549.768192] Pid: 10, comm: kworker/0:1 Tainted: G W 2.6.37-otn1-33361-ga3f5274 #3 [ 549.768221] Call Trace: [ 549.768255] [<ffffffffa0217444>] ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs] [ 549.768286] [<ffffffff81044644>] ? warn_slowpath_common+0x78/0x8d [ 549.768319] [<ffffffffa0217444>] ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs] [ 549.768354] [<ffffffffa020cdfe>] ? commit_fs_roots+0x87/0xef [btrfs] [ 549.768388] [<ffffffffa020da71>] ? btrfs_commit_transaction+0x342/0x60f [btrfs] [ 549.768422] [<ffffffffa00aef5d>] ? xprt_release_xprt+0x41/0x73 [sunrpc] [ 549.768450] [<ffffffff8105df3a>] ? autoremove_wake_function+0x0/0x2e [ 549.768480] [<ffffffffa00ace70>] ? call_transmit+0x214/0x24f [sunrpc] [ 549.768513] [<ffffffffa020dd50>] ? do_async_commit+0x12/0x1b [btrfs] [ 549.768541] [<ffffffff8105903b>] ? process_one_work+0x22c/0x3a5 [ 549.768574] [<ffffffffa020dd3e>] ? do_async_commit+0x0/0x1b [btrfs] [ 549.768601] [<ffffffff81059507>] ? worker_thread+0x1d5/0x353 [ 549.768628] [<ffffffff81059332>] ? worker_thread+0x0/0x353 [ 549.768656] [<ffffffff8105daf0>] ? kthread+0x7e/0x86 [ 549.768683] [<ffffffff8100a7e4>] ? kernel_thread_helper+0x4/0x10 [ 549.768710] [<ffffffff8105da72>] ? kthread+0x0/0x86 [ 549.768737] [<ffffffff8100a7e0>] ? kernel_thread_helper+0x0/0x10 [ 549.768765] ---[ end trace 38bb7d3c072c3ca5 ]--- This or similar warnings look to have previously been reported by others, e.g.: 2010-11-19 http://article.gmane.org/gmane.comp.file-systems.btrfs/7707/match=btrfs_orphan_commit_root 2011-01-06 http://article.gmane.org/gmane.comp.file-systems.btrfs/8512/match=btrfs_orphan_commit_root 2011-01-26 http://article.gmane.org/gmane.comp.file-systems.ceph.devel/1726/match=btrfs_orphan_commit_root The process I use to reproduce is: mkcephfs -v -c /etc/ceph/ceph.conf --allhosts --mkbtrfs -k /etc/ceph/keyring.bin umount /data/osd0 /etc/init.d/ceph start This is using a minimal ceph.conf file: ------------------------------------------------------------ [global] [mon] mon data = /data/mon$id [mon0] host = b3 mon addr = ip.ip.ip.ip:6789 [mds] keyring = /data/keyring.$name [mds.b3] host = b3 [osd] osd data = /data/osd$id [osd0] host = b3 btrfs devs = /dev/sda ------------------------------------------------------------ Cheers, Chris. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
