Hi, my system freeze every day with (see screenshot) Kernel: 3.5-trunk-amd64 #1 SMP Thu Aug 2 17:16:27 UTC 2012 x86_64 GNU/Linux # btrfs filesystem df / Data: total=401.01GB, used=304.14GB System, DUP: total=8.00MB, used=64.00KB System: total=4.00MB, used=0.00 Metadata, DUP: total=106.12GB, used=84.53GB Metadata: total=8.00MB, used=0.00 # btrfs filesystem df / Data: total=401.01GB, used=304.14GB System, DUP: total=8.00MB, used=64.00KB System: total=4.00MB, used=0.00 Metadata, DUP: total=106.12GB, used=84.53GB Metadata: total=8.00MB, used=0.00 root@pushka5:~# btrfs fi show Label: none uuid: 963bbad4-8a42-4fcc-9fa9-d0635e Total devices 1 FS bytes used 388.67GB devid 1 size 661.24GB used 613.29GB path /dev/sda5 Btrfs Btrfs v0.19 mount per fstab: UUID=963bbad4-8a42-4fcc-9fa / btrfs defaults,discard,ssd SSD in RAID 0. Also some log entries in /var/log/syslog Oct 10 19:33:06 pushka5 kernel: [ 13.688870] WARNING: at /build/buildd-linux_3.5-1~experimental.1-amd64-Fqdztq/linux-3.5/fs/inode.c:337 inc_nlink+0x1b/0x30() Oct 10 19:33:06 pushka5 kernel: [ 13.688871] Hardware name: PowerEdge M710HD Oct 10 19:33:06 pushka5 kernel: [ 13.688872] Modules linked in: btrfs crc32c libcrc32c zlib_deflate sd_mod crc_t10dif sg sr_mod cdrom usbhid hid usb_storage uas uhci_hcd ehci_hcd usbcore us Oct 10 19:33:06 pushka5 kernel: [ 13.688892] Pid: 431, comm: busybox Tainted: G W 3.5-trunk-amd64 #1 Oct 10 19:33:06 pushka5 kernel: [ 13.688894] Call Trace: Oct 10 19:33:06 pushka5 kernel: [ 13.688898] [<ffffffff81039853>] ? warn_slowpath_common+0x78/0x8c Oct 10 19:33:06 pushka5 kernel: [ 13.688901] [<ffffffff81112449>] ? inc_nlink+0x1b/0x30 Oct 10 19:33:06 pushka5 kernel: [ 13.688919] [<ffffffffa019585f>] ? link_to_fixup_dir+0x7c/0xb2 [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.688938] [<ffffffffa0197b22>] ? replay_one_buffer+0x15a/0x238 [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.688956] [<ffffffffa0196a07>] ? walk_up_log_tree+0x11b/0x1fb [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.688974] [<ffffffffa0197494>] ? walk_log_tree+0x99/0x1bd [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.688991] [<ffffffffa0165bdd>] ? btrfs_read_fs_root_no_radix+0x164/0x1a3 [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.689010] [<ffffffffa0198da7>] ? btrfs_recover_log_trees+0x1da/0x2d8 [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.689028] [<ffffffffa01979c8>] ? replay_one_dir_item+0xb9/0xb9 [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.689045] [<ffffffffa0167dfc>] ? open_ctree+0x1377/0x1737 [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.689057] [<ffffffffa014c3b6>] ? btrfs_mount+0x364/0x4be [btrfs] Oct 10 19:33:06 pushka5 kernel: [ 13.689061] [<ffffffff81059807>] ? should_resched+0x5/0x23 Oct 10 19:33:06 pushka5 kernel: [ 13.689064] [<ffffffff810d29d5>] ? pcpu_next_pop+0x35/0x41 Oct 10 19:33:06 pushka5 kernel: [ 13.689068] [<ffffffff810d295d>] ? cpumask_next+0x16/0x18 Oct 10 19:33:06 pushka5 kernel: [ 13.689072] [<ffffffff810f2ab3>] ? __kmalloc_track_caller+0xfe/0x110 Oct 10 19:33:06 pushka5 kernel: [ 13.689076] [<ffffffff81102c5e>] ? mount_fs+0x61/0x147 Oct 10 19:33:06 pushka5 kernel: [ 13.689080] [<ffffffff81115989>] ? vfs_kern_mount+0x65/0xde Oct 10 19:33:06 pushka5 kernel: [ 13.689084] [<ffffffff81115cff>] ? do_kern_mount+0x49/0xd8 Oct 10 19:33:06 pushka5 kernel: [ 13.689088] [<ffffffff811174c9>] ? do_mount+0x6aa/0x710 Oct 10 19:33:06 pushka5 kernel: [ 13.689092] [<ffffffff810cf9c6>] ? memdup_user+0x36/0x5b Oct 10 19:33:06 pushka5 kernel: [ 13.689096] [<ffffffff8111761f>] ? sys_mount+0x88/0xc3 Oct 10 19:33:06 pushka5 kernel: [ 13.689100] [<ffffffff81364779>] ? system_call_fastpath+0x16/0x1b Oct 10 19:33:06 pushka5 kernel: [ 13.689102] ---[ end trace 23fec35662cda366 ]--- Oct 10 19:33:06 pushka5 kernel: [ 13.691063] block group 355572121600 has an wrong amount of free space Oct 10 19:33:06 pushka5 kernel: [ 13.691123] btrfs: failed to load free space cache for block group 355572121600 Oct 10 19:33:06 pushka5 kernel: [ 13.983934] btrfs: free space inode generation (0) did not match free space cache generation (141071) Oct 10 19:33:06 pushka5 kernel: [ 13.984895] btrfs: free space inode generation (0) did not match free space cache generation (141069) Oct 10 19:33:06 pushka5 kernel: [ 13.986164] btrfs: free space inode generation (0) did not match free space cache generation (141071) Oct 10 19:33:06 pushka5 kernel: [ 13.987245] btrfs: free space inode generation (0) did not match free space cache generation (141071) Oct 10 19:33:06 pushka5 kernel: [ 14.025495] btrfs: free space inode generation (0) did not match free space cache generation (141069) Any Idea? -- Best Regards Vlad Vorobiev