Ext4-fs Error Device Dm-0 Ext4_mb_generate_buddy
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Next This bug is not in your last search results. Bug42723 - EXT4-fs error: ext4_mb_generate_buddy ext4_mb_generate_buddy:757 Summary: EXT4-fs error: ext4_mb_generate_buddy Status: RESOLVED PATCH_ALREADY_AVAILABLE Product: File System Classification: ext4_mb_generate_buddy block bitmap and bg descriptor inconsistent Unclassified Component: ext4 Hardware: All Linux Importance: P1 normal Assigned To: fs_ext4@kernel-bugs.osdl.org URL: http://comments.gmane.org/gmane.comp.... Keywords: Depends ext4 fs error block bitmap and bg descriptor inconsistent on: Blocks: Show dependency tree /graph Reported: 2012-02-03 23:10 UTC by Birger Harzenetter Modified: 2014-08-21 09:21 UTC (History) CC List: 11 users (show) b.schanzel bugzilla-kernel cdomigan
Ext4_mb_generate_buddy:739
jim.bander kernel mai.ling.lists.35 peter.meier+kernel pp sandeen tytso zwu.kernel See Also: Kernel Version: 3.2, 3.2.2, 3.3-rc1 Tree: Mainline Regression: Yes Attachments dmesg (44.38 KB, text/plain) 2014-07-05 08:41 UTC, mai ling Details View All Add an attachment (proposed patch, testcase, etc.) Description Birger Harzenetter 2012-02-03 23:10:45 UTC Repeated or even reproducible occurrences of EXT4-fs error: ext4_mb_generate_buddy Last ext4_mb_generate_buddy:755: known good version: 3.1.5 More info on the above URL; possible trigger in the last message. Comment 1 Birger Harzenetter 2012-02-10 01:09:11 UTC Currently using 3.1.7 without issues. Comment 2 Pekka Pietikäinen 2012-02-20 12:12:22 UTC I've potentially seen this with 3.2.1/3.2.5 (Fedora 16) messages-20120219:Feb 16 18:11:40 laptop kernel: [688848.718886] EXT4-fs error (device dm-1): mb_free_blocks:1348: group 28, block 924740:freeing already freed block (bit 7236) messages-20120219:Feb 16 18:11:40 laptop kernel: [688848.718890] EXT4-fs error (device dm-1): mb_free_blocks:1348: group 28, block 924741:freeing already freed block (bit 7237) ... messages:Feb 19 04:46:02 laptop kernel: [106683.790999] EXT4-fs error (device dm-1): ext4_mb_generate_buddy:739: group 311, 15861 clusters in bitmap, 9309 in gd messages:Feb 19 04:46:02 laptop kernel: [106683.874849] EXT4-fs error (device dm-1): ext4_mb_generate_buddy:739: group 321, 30343 clusters in bitmap, 30295 in gd but... the laptop in question is a quite dodgy hardware-wise (wiggle the case a bit and the Thinklight blinks etc.). Typical light laptop use with root/home on LVM the way Fedora puts them by default. So far it's getti
Common F23 Bugs Common F24 Bugs Communicate with Fedora The Documents Bug Reports Fedora Update System (Bodhi) Fedora Build System (Koji) Official Spins FedoraForum.org > Fedora 23/24 > Using ext4_mb_generate_buddy: 756 Fedora I've got ext4_mb_generate_buddy errors on my ext4 partition FedoraForum Search User
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Ext4 Fs Error Device Sda1
current versions. Ask questions about Fedora that do not belong in any other forum. Google™ Search FedoraForum Search Red Hat Bugzilla Search Search Forums Show Threads Show Posts Tag Search Advanced https://bugzilla.kernel.org/show_bug.cgi?id=42723 Search Go to Page... Thread Tools Search this Thread Display Modes #1 25th October 2011, 08:28 AM axishero Offline Registered User Join Date: Feb 2011 Posts: 7 I've got ext4_mb_generate_buddy errors on my ext4 partition I use a old x86 to install fedora with transmission to do downloads.Maybe a crash or unintentional shutdown cause these troubles: Code: mynas@fedora:~# dmesg dy:736: group 7749, 0 http://forums.fedoraforum.org/showthread.php?t=271361 blocks in bitmap, 534 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7751, 0 blocks in bitmap, 354 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7752, 0 blocks in bitmap, 22 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7754, 0 blocks in bitmap, 13 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7755, 0 blocks in bitmap, 586 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7756, 0 blocks in bitmap, 661 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7757, 0 blocks in bitmap, 13 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7758, 0 blocks in bitmap, 8 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7760, 0 blocks in bitmap, 117 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7766, 0 blocks in bitmap, 512 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7768, 0 blocks in bitmap, 52 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7772, 0 blocks in bitmap, 43 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7774, 0 blocks in bitmap, 30 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7776, 0 blocks in bitmap, 19 in gd EXT4-fs error (device sda2): ext4_mb_generate_buddy:736: group 7786, 0 block
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or http://superuser.com/questions/493926/what-is-ext4-fs-error-device-md0-ext4-mb-generate-buddy739-group-10770-0-c posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top What is EXT4-fs error (device md0): ext4_mb_generate_buddy:739: group 10770, 0 clusters in bitmap, 32768? up vote 4 down vote favorite 2 On fs error my Ubuntu Server 12.04 I got this errors (via dmesg): [ 1104.544121] EXT4-fs error (device md0): ext4_mb_generate_buddy:739: group 10771, 0 clusters in bitmap, 32768 in gd [ 1104.549227] EXT4-fs error (device md0): ext4_mb_generate_buddy:739: group 10772, 0 clusters in bitmap, 32768 in gd [ 1151.872640] EXT4-fs error (device md0): ext4_mb_generate_buddy:739: group 10784, 28639 clusters in bitmap, 28640 in gd I have absolutely no idea why these errors are showing up. My server configuration: 1 x SATA HDD for the OS 4 x 2TB block bitmap and SATA HDD (device md0): RAID 5 on EXT4 Possible sources of the errors: I (or the system automatically) did a resync, because one SATA cable was damaged. I copied some files from an external hdd with NTFS to the EXT4 Raid system (but this shouldn't be a problem I guess). I googled, but didn't found a solution. I may try: The command fsck (can't provide link, because of superuser.com spam protection..) to repair something? Maybe it helps... Wait for a solution on this Linux Kernel Bug entry linux ubuntu filesystems ubuntu-12.04 ext4 share|improve this question asked Oct 27 '12 at 11:26 malisokan 12314 Okay I think the resync and fsck command fixed the problem. The errors do not show up again. –malisokan Dec 29 '12 at 10:59 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted You should try umounting the disk and running fsck on it. What does this command show? cat /proc/mdstat Your disks should be in sync so you can repair the filesystem. share|improve this answer answered Oct 28 '12 at 7:32 l3m5 561 Okay I think the resync and fsck command fixed the problem. The errors do not show up again. –malisokan Apr 26 '13 at 12:23 Could you please expand on the mdstat matter? I have solved my filesystem error message at my Kali Linux on Raspberry by fscking, but I have no such /proc/mdstat file (well, it