From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 63981] New: Bad: Buffer I/O errors make disk unusable
Date: Mon, 28 Oct 2013 19:38:44 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=63981
Bug ID: 63981
Summary: Bad: Buffer I/O errors make disk unusable
Product: File System
Version: 2.5
Kernel Version: 3.12.0-rc6
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ext4
Assignee: fs_ext4@kernel-bugs.osdl.org
Reporter: scalg1@bfh.ch
Regression: No
Created attachment 112591
--> https://bugzilla.kernel.org/attachment.cgi?id=112591&action=edit
dmesg of the errors causing the problem
When I use my laptop, suddenly the SSD disk become unusable. The disk is
mounted in read-only mode and the only way to get it work again is to reboot.
During the reboot, the file system check, fixes the errors and I can use the
laptop for some hours after that the problem appear again.
This problem is difficult to reproduce because there are no precise steps to
perform in order to cause the I/O errors showed by the attached dmesg.
I had the same problem using kernel 3.11.5 and 3.10.6. I use a
Sony VAIO pro (Sony Corporation SVP1321C5E/VAIO, BIOS R1040V7 09/09/2013).
============================
Information about my system:
bash-4.2# cat /proc/scsi/scsi
Attached devices:
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: SAMSUNG MZNTD256 Rev: DXT2
Type: Direct-Access ANSI SCSI revision: 05
========================================
/etc/fstab
/dev/sda1 / ext4 defaults 1 1
/dev/sda2 /home/ ext4 defaults 1 2
/dev/sda3 /media/hd1 ext4 defaults 1 2
#/dev/cdrom /mnt/cdrom auto
noauto,owner,ro,comment=x-gvfs-show 0 0
/dev/fd0 /mnt/floppy auto noauto,owner 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
proc /proc proc defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
tmpfs /tmp tmpfs defaults,noatime,nodiratime,mode=1777
0 0
tmpfs /var/spool tmpfs defaults,noatime,nodiratime,mode=1777
0 0
tmpfs /var/tmp tmpfs defaults,noatime,nodiratime,mode=1777
0 0
/proc/version
Linux version 3.12.0-rc6 (root@darkstar) (gcc version 4.8.1 (GCC) ) #1 SMP Sun
Oct 27 19:02:16 CET 2013
Attached you will find the relevant part of dmesg.
Thanks for your help.
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