Index of /bits/2.6.33-rc6/btrfs

Icon  Name                          Last modified      Size  Description
[DIR] Parent Directory                                   -   
[TXT] btrfs-unaligned-access-1.diff 18-Jan-2012 09:27  1.5K  
[TXT] btrfs-unaligned-access-2.diff 18-Jan-2012 09:27  1.5K  
[   ] dmesg-Caller1.txt.gz          06-Feb-2010 07:26  4.8K  
[   ] dmesg-Caller2.txt.gz          06-Feb-2010 07:26  4.8K  
[   ] dmesg-btrfs_csum_final.txt.gz 06-Feb-2010 07:26  6.8K  
[   ] dmesg.txt.gz                  06-Feb-2010 07:26  4.7K  
[   ] config.gz                     05-Feb-2010 11:30  6.8K  

* http://www.spinics.net/lists/linux-btrfs/msg01029.html        - 21 Nov 2008
* http://www.spinics.net/lists/linux-btrfs/msg04129.html	- 05 Feb 2010

# ls -lsgo /mnt/test.img 
4198404 -rw-r--r-- 1 4294967296 2010-02-03 11:09 /mnt/test.img
# losetup -f /mnt/test.img
# getconf PAGE_SIZE
8192

# mkfs.btrfs -s `getconf PAGE_SIZE` /dev/loop0
WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL
WARNING! - see http://btrfs.wiki.kernel.org before using

fs created label (null) on /dev/loop0
	nodesize 8192 leafsize 8192 sectorsize 8192 size 4.00GB
Btrfs Btrfs v0.19

# mount -t btrfs /dev/loop0 /mnt/test
# dmesg | tail
[ 1087.438577] Btrfs loaded
[ 1087.594024] device fsid a148733cd8864434-83f50f0afeb78779 devid 1 transid 7 /dev/loop0
[ 1087.724622] ------------[ cut here ]------------
[ 1087.779337] WARNING: at /data/scm/linux-2.6-git/fs/btrfs/extent_io.c:3618 write_extent_buffer+0x140/0x1a0 [btrfs]()
[ 1087.903973] Modules linked in: btrfs zlib_deflate zlib_inflate crc32c libcrc32c nfsd exportfs loop sg sr_mod cdrom
[ 1088.027849] Call Trace:
[ 1088.057125]  [0000000000452d44] warn_slowpath_common+0x44/0x80
[ 1088.126910]  [0000000000452d90] warn_slowpath_null+0x10/0x20
[ 1088.194785]  [00000000101354a0] write_extent_buffer+0x140/0x1a0 [btrfs]
[ 1088.273969]  [000000001013e550] btrfs_read_sys_array+0x50/0x340 [btrfs]
[ 1088.353124]  [00000000101070fc] open_ctree+0xf1c/0x17c0 [btrfs]
[ 1088.423941]  [00000000100dc938] btrfs_get_sb+0x358/0x4a0 [btrfs]
[ 1088.495701]  [00000000004c6e54] vfs_kern_mount+0x34/0xe0
[ 1088.559230]  [00000000004c6f44] do_kern_mount+0x24/0xe0
[ 1088.621737]  [00000000004e02b4] do_mount+0x2b4/0x8c0
[ 1088.681346]  [0000000000502338] compat_sys_mount+0x98/0x280
[ 1088.747812]  [0000000000406114] linux_sparc_syscall32+0x34/0x40
[ 1088.818614] ---[ end trace 19996b4574f21973 ]---


* http://www.spinics.net/lists/linux-btrfs/msg04131.html	- 05 Feb 2010

[28617.650231] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28617.745783] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28654.589492] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28654.685036] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28689.595394] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28689.690936] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28725.013603] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28725.109575] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28759.606686] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
[28759.702612] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]