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Date: Mon, 26 Jan 2009 16:41:53 +0900 From: Akira Fujita <a-fujita@...jp.nec.com> To: Derkjan de Haan <haanjdj@...il.com> CC: Takashi Sato <t-sato@...jp.nec.com>, linux-ext4@...r.kernel.org Subject: Re: can't get e4defrag to work Hi Derkjan, Derkjan de Haan wrote: > Hi Akira, > > Just got e4defrag to work - to a certain degree. I'm using Fedora 10, > which has ext4 as a module. This produces the problem described here: > > http://lkml.indiana.edu/hypermail/linux/kernel/0901.2/00701.html > > (the patch 'ext4: Add a delayed allocation debugging ioctl' doesn't > export inode_lock -> I reverted this patch) I see. :-) > But now I'm bitten by the fact that Fedora 10 creates ext4 filesystems > with the flex_bg feature enabled, which seems to be incompatible with > e4defrag. I also can't seem to clear that flag. tune2fs refuses this, > and if try using debugfs the flag gets cleared, but when running > e2fsck it gets restored again, so I'm basically stuck here. The new online defrag handles the flex_bg feature correctly, so you will be able to run e4defrag on the Fedora 10 soon. Regards, Akira Fujita > > 2009/1/23 Akira Fujita <a-fujita@...jp.nec.com>: >> Hi Derkjan, >> >> Thank you for using ext4 onlie defrag. >> >> I tried to use the same kernel and command >> (2.6.28 + >> http://www2.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/LATEST/broken-out.tar.bz2 >> ) >> and I got a fine result as follows. >> >> [root@...086 broken-out]# ./e4defrag -v /mnt/mp1/file1 >> ext4 defragmentation for /mnt/mp1/file1 >> [1/1]/mnt/mp1/file1: 100% extents: 3 -> 1 [ OK ] >> Success: [1/1] >> >> My environment was: >> [root@...086 broken-out]# uname -a >> Linux bsd086 2.6.28 #2 SMP Thu Jan 22 09:55:13 JST 2009 i686 i686 i386 >> GNU/Linux >> >> [root@...086 broken-out]# mount >> /dev/sda8 on /mnt/mp1 type ext4 (rw) >> >> [root@...086 broken-out]# debugfs /dev/sda8 >> .. >> Filesystem features: has_journal ext_attr resize_inode dir_index >> filetype n >> eeds_recovery extent 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: 61824 >> Block count: 246991 >> Reserved block count: 12349 >> Free blocks: 223339 >> Free inodes: 61810 >> First block: 0 >> Block size: 4096 >> Fragment size: 4096 >> Reserved GDT blocks: 60 >> Blocks per group: 32768 >> Fragments per group: 32768 >> Inodes per group: 7728 >> .. >> >> >> Did you turn off the flex_bg feature in your case? >> But the message "Inappropriate ioctl for device" you had is not >> related to the flex_bg. >> Something related to ioctl might be wrong in your case. >> >> Were there any reject or hunks when you applied patches to kernel? >> Did you boot with correct kernel? >> I have no idea so can you tell me the detail of your test environment? >> >> By the way, ext4 online defrag in the current ext4 patch queue (2.6.29-rc1) >> does not work fine, because defrag does not handle some new ext4 functions >> correctly. >> Therefore Ted commented them out recently. >> >> I'm preparing to release new online defrag patches now. >> Probably it will be the next week. >> I appreciate it if you try to use new one as well. >> >> Thanks, >> Akira Fujita >> >> >> Derkjan de Haan wrote: >>> Dear Sirs, >>> >>> I have tried to compile a usable e4defrag but to no avail. It doesn't >>> defrag anything, and in verbose mode it reports: "Defrag >>> fail:Inappropriate ioctl for device". >>> >>> I have downloaded a stock 2.6.28 kernel, and applied all patches in >>> >>> http://www2.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/LATEST/broken-out.tar.bz2 >>> I have uncommented the defrag patches (except -00 (the changelog) and >>> -09 (the defrag tool) in the series file, and run "quilt push -a". It >>> reports all patches applied successfully. An example e4defrag run >>> looks like this: >>> >>> [root@...hiba ~]# ./e4defrag -v . >>> ext4 defragmentation for directory(.) >>> [1/31] "/root" >>> File is not regular file [ NG ] >>> [2/31] "/root/.gnupg" >>> File is not regular file [ NG ] >>> [3/31]/root/.gnupg/gpg.conf: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [4/31] "/root/.gnupg/pubring.gpg" >>> File size is 0 [ NG ] >>> [5/31]/root/e4defrag: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [6/31] "/root/Mail" >>> File is not regular file [ NG ] >>> [7/31]/root/defrag-09-online-defrag-command.c: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [8/31] "/root/.gconfd" >>> File is not regular file [ NG ] >>> [9/31]/root/.gconfd/saved_state: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [10/31]/root/.bashrc: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [11/31] "/root/.kde" >>> File is not regular file [ NG ] >>> [12/31] "/root/.kde/cache-toshiba.badmuts.org" >>> File is not regular file [ NG ] >>> [13/31] "/root/.kde/tmp-toshiba.badmuts.org" >>> File is not regular file [ NG ] >>> [14/31]/root/.lesshst: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [15/31] "/root/.ketchup" >>> File is not regular file [ NG ] >>> [16/31]/root/.ketchup/patch-2.6.29-rc2.bz2: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [17/31]/root/install.log.syslog: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [18/31]/root/.bash_logout: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [19/31]/root/.bash_history: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [20/31]/root/.bash_profile: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [21/31]/root/anaconda-ks.cfg: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [22/31] "/root/.lftp" >>> File is not regular file [ NG ] >>> [23/31]/root/.lftp/rl_history: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [24/31]/root/.lftp/transfer_log: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [25/31]/root/.lftp/cwd_history: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [26/31]/root/.cshrc: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [27/31]/root/install.log: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [28/31]/root/.tcshrc: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [29/31] "/root/.ssh" >>> File is not regular file [ NG ] >>> [30/31]/root/.ssh/known_hosts: 0% >>> Defrag fail:Inappropriate ioctl for device [ NG ] >>> [31/31] "/root/.gconf" >>> File is not regular file [ NG ] >>> >>> Success: [ 0/31 ] >>> Failure: [ 31/31 ] >>> Total extents: 36->36 >>> Fragmented percentage: 20%->20% >>> >>> I must be doing something wrong, but I can't figure out what. Do you >>> have any hints? >>> >>> Kind regards, >>> >>> >>> Derkjan de Haan >>> > -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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