Buffer I/o Error On Device Dm-0 Logical Block
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Buffer I/o Error On Device Dm-0 Logical Block 0
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Search FedoraForum Search Red Hat Bugzilla Search Search Forums Show Threads Show Posts Tag Search Advanced Search Go to Page... Thread Tools Search this Thread Display Modes #1 1st March http://www.linuxquestions.org/questions/linux-software-2/buffer-i-o-error-on-device-dm-0-a-4175512149/ 2016, 06:03 PM pmeni Offline Registered User Join Date: Mar 2016 Location: AR Posts: 2 Buffer I/O error on device dm-0 Hi, I have problems with Fedora 23, (Fedora 22 works fine, doesn't have this kind of errors), with no reason the disk fail an run into read-only. I changed the disk to a new one and the same issue. Anyone have this errors?, May be I can http://forums.fedoraforum.org/showthread.php?t=309039 try to install Fedora whit no LVM and see if this solve the problem. Tested with this kernel versions: kernel.x86_64 4.3.5-300.fc23 kernel.x86_64 4.4.2-301.fc23 Full log: http://ur1.ca/ol96o Mar 01 12:51:48 NORC kernel: ata6.00: exception Emask 0x0 SAct 0x400 SErr 0x0 action 0x6 frozen Mar 01 12:52:48 NORC kernel: ata6.00: failed command: WRITE FPDMA QUEUED Mar 01 12:52:48 NORC kernel: ata6.00: cmd 61/50:50:08:6c:1b/00:00:06:00:00/40 tag 10 ncq 40960 out res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Mar 01 12:52:48 NORC kernel: ata6.00: status: { DRDY } Mar 01 12:52:48 NORC kernel: ata6: hard resetting link Mar 01 12:52:48 NORC kernel: ata6: link is slow to respond, please be patient (ready=0) Mar 01 12:52:48 NORC kernel: ata6: COMRESET failed (errno=-16) Mar 01 12:52:48 NORC kernel: EXT4-fs warning (device dm-0): ext4_end_bio:329: I/O error -5 writing to inode 2368435 (offset 0 size 0 starting block 4954560) Mar 01 12:52:48 NORC kernel: Buffer I/O error on device dm-0, logical block 4954560 Mar 01 12:52:48 NORC kernel: EXT4-fs warning (device dm-0): ext4_end_bio:329: I/O error -5 writing to inode 2368435 (offset 0 size 0 starting block 4954561) Mar 01 12:52:48 NORC kernel: Buffer I/O error on device dm-0, logical block 4954561 Mar 01 12:52:48 NORC kernel: Buffer I/O error on device dm-0, logical block 4954562 Mar 01 12:
Nueron Member Registered: 2015-06-18 Posts: 4 [SOLVED] Buffer I/O error on dev dm-0 Hi, this is my first time using Arch Linux and my first forum post. I installed Arch Linux in a virtual machine a few days ago https://bbs.archlinux.org/viewtopic.php?id=198860 using VMware Fusion 7.1.1 for Mac. I was updating my system with pacman -Syu and immediately after the update finished I received the error message, "Buffer I/O error on dev dm-0, logical block 1056800, lost async page http://askubuntu.com/questions/520358/logical-block-number-in-the-buffer-i-o-error write", as shown in the image in this link: kernel error From what I have been researching, other people who have been having this problem received this same error on other linux distributions, so this makes error on me certain that this problem is related to the kernel, though I don't know why I would be receiving an error related to devices if I am emulating the system. I receive this error every time after I try to update and whenever it occurs it prevents me from trying to type in a command to figure out why this is happening, thus making my system unusable and forcing me to reboot. error on device Once I reboot, everything seems to be working properly again (however my system isn't updated on reboot and that is also a problem because I can't install packages without updating). I am not using RAID (some web content I've been reading said this has been solved by disabling RAID). Any thoughts? Last edited by Infected Nueron (2015-06-21 19:28:57) Offline #2 2015-06-20 14:00:35 Spider.007 Member Registered: 2004-06-20 Posts: 1,153 Website Re: [SOLVED] Buffer I/O error on dev dm-0 The image isn't accessible, Google says "You need permission - Want in? Ask the owner for access, or switch to an account with permission. Learn more". I'm assuming you setup LVM? Please provide some details about your install Offline #3 2015-06-20 17:15:24 R00KIE Forum Moderator From: Between a computer and a chair Registered: 2008-09-14 Posts: 3,395 Re: [SOLVED] Buffer I/O error on dev dm-0 I'd say you should try to catch the first error, that might provide a better clue to what's happening.If I had to guess I'd say that for some reason the disk/lv disappear and after that you get all kinds of disk related errors. R00KIETm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K Offline #4 2015-06-20 19:14:02 Infected Nueron Member Registered: 2015-06-18 Posts: 4 Re: [SOLVED] Buffer I/O error on dev dm-0 Thank you notifying me Spider.007. I have changed the Google Drive permissi
communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start 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 posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. 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 Logical Block number in the “Buffer I/O error” up vote 2 down vote favorite I was trying to determine a bad PV which was causing the LV to report Buffer I/O error and found this interesting behaviour in the "Buffer I/O error" message. On a Large LV that is mapped to different PVs, I tried to use the "logical block" reported in the error, to match with the dmsetup table to find out which target device it was on. However this method doesn't seem to be reliable. I used dmsetup to create a device mapper device, with one or a number of holes in it. And the error messages are very interesting and I can't make sense of the pattern. It seems the "Logical Block" number in the error message depends on the size of the hole and also it's position. Is there a definitive way to locate the actual bad block? Here are the tests that I did +++ TEST 1 error block at 8, buffer i/o error at LB 8 root@ubuntu:~# dmsetup create test x.tab root@ubuntu:~# dmsetup table test 0 8 linear 8:16 0 8 1 error 9 1000 linear 8:16 8 root@ubuntu:~# dd if=/dev/mapper/test of=/dev/null bs=512 count=1000 dd: error reading ‘/dev/mapper/test’: Input/output error 8+0 records in 8+0 records out 4096 bytes (4.1 kB) copied, 0.000977434 s, 4.2 MB/s root@ubuntu:~# Sep 5 17:21:07 ubuntu kernel: [ 1358.811671] bio: create slab