On Mon, Nov 3, 2008 at 2:40 PM, Theodore Tso <tytso@xxxxxxx> wrote: > On Mon, Nov 03, 2008 at 12:42:11PM +0000, Roc Valles wrote: >> Some person already reported this. I'm having the same problem. >> http://marc.info/?l=linux-ext4&m=122557056518246&w=2 >> >> rtorrent is a bittorrent client that makes heavy use of mmap instead >> of read/write to avoid needless duplication of data. It has exposed >> other bugs in the past (mmap bug in 2.6.19). >> http://libtorrent.rakshasa.no >> Downloading a big torrent (>2GB) with rtorrent triggers it more times >> than not. The bigger the torrent, the higher the likeliness of >> failure. When the torrent is finished, if a hash check is forced by >> pressing control-r on the torrent, some blocks will fail. > > Can both of you send the output of "dumpe2fs -h /dev/<disk device>" of > the filesystem in question? The thing which I'm most interested in is > whether the extents feature was enabled or not. (i.e., was this a > freshly made ext4 filesystem, or a ext3 filesystem mounted under ext4, > and with which features eanbled?) > OK. In my case it's a freshly made default ext4 filesystem. I'm running 2.6.28-rc3 x86_64. dumpe2fs 1.41.3 (12-Oct-2008) Filesystem volume name: <none> Last mounted on: <not available> Filesystem UUID: 511e7636-5196-4095-8654-bca756102d8d Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 6406144 Block count: 25599569 Reserved block count: 1279978 Free blocks: 19257546 Free inodes: 5623009 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 1017 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Flex block group size: 16 Filesystem created: Fri Oct 24 15:48:46 2008 Last mount time: Mon Nov 3 09:59:24 2008 Last write time: Mon Nov 3 09:59:24 2008 Mount count: 20 Maximum mount count: 28 Last checked: Sat Nov 1 20:07:13 2008 Check interval: 15552000 (6 months) Next check after: Thu Apr 30 21:07:13 2009 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 First orphan inode: 294551 Default directory hash: half_md4 Directory Hash Seed: 847df4ea-f163-404b-bc41-07a5a5245911 Journal backup: inode blocks Journal size: 128M -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
