I/o Error Unix
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Input/output Error Linux
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Special File that causes I/O error up vote 10 down vote favorite 1 I want to automatically test if a piece of software reacts as expected if an essential SQLite DB file fails to be read (causing an I/O error). Exactly that happened some days ago at a client. We manually fixed it but now I want to create automatic code to fix it and need access to a broken file to test that. As everything
Ddrescue
in Unix's a file, I suspected that there might be a special file that always causes I/O errors when one tries to read it (e.g. in /dev). Some similar files (imo) would be: /dev/full which always says "No space left on device" if you try to write it /dev/null and /dev/zero so I assumed there just has to be a file like that (but haven't found one yet). Does anyone know such a file or any other method for me to get the desired result (a intentionally faulty partition image, a wrapper around open() using LD_PRELOAD, ...)? What's the best way to go here? linux devices io testing share|improve this question edited May 29 '13 at 14:03 asked May 29 '13 at 11:57 mreithub 1,7831917 As far as I know, there is no special file on Linux that gives SIGIO when you read from it. The last time I got a SIGIO was because of a USB stick that declared a capacity much bigger than the real, physical one. Maybe that could be a possibility? –lgeorget May 29 '13 at 12:25 hmmm, I might be able to try that with a small partition image that I'll crop somewhere in the middle... –mreithub May 29 '13 at 13:04 SIGIO doesn't mean there has been an error, it is a way tha
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Blk_update_request I O Error
& Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer site for users e2fsck of Linux, FreeBSD and other Un*x-like operating systems. 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 http://unix.stackexchange.com/questions/77492/special-file-that-causes-i-o-error rise to the top “Input/output error” when accessing a directory up vote 39 down vote favorite 9 I want to list and remove the content of a directory on a removable hard drive. But I have experienced "Input/output error": $ rm pic -R rm: cannot remove `pic/60.jpg': Input/output error rm: cannot remove `pic/006.jpg': Input/output error rm: cannot remove `pic/008.jpg': Input/output error rm: cannot remove `pic/011.jpg': Input/output error $ ls -la pic ls: cannot access http://unix.stackexchange.com/questions/39905/input-output-error-when-accessing-a-directory pic/60.jpg: Input/output error -????????? ? ? ? ? ? 006.jpg -????????? ? ? ? ? ? 006.jpg -????????? ? ? ? ? ? 011.jpg I was wondering what the problem is? How can I recover or remove the directory pic and all of its content? My OS is Ubuntu 12.04, and the removable hard drive has ntfs filesystem. Other directories not containing or inside pic on the removable hard drive are working fine. Added: Last part of output of dmesg after I tried to list the content of the directory: [19000.712070] usb 1-1: new high-speed USB device number 2 using ehci_hcd [19000.853167] usb-storage 1-1:1.0: Quirks match for vid 05e3 pid 0702: 520 [19000.853195] scsi5 : usb-storage 1-1:1.0 [19001.856687] scsi 5:0:0:0: Direct-Access ST316002 1A 0811 PQ: 0 ANSI: 0 [19001.858821] sd 5:0:0:0: Attached scsi generic sg2 type 0 [19001.861733] sd 5:0:0:0: [sdb] 312581808 512-byte logical blocks: (160 GB/149 GiB) [19001.862969] sd 5:0:0:0: [sdb] Test WP failed, assume Write Enabled [19001.865223] sd 5:0:0:0: [sdb] Cache data unavailable [19001.865232] sd 5:0:0:0: [sdb] Assuming drive cache: write through [19001.867597] sd 5:0:0:0: [sdb] Test WP failed, assume Write Enabled [19001.869214] sd 5:0:0:0: [sdb] Cache data unavailable [19001.869218] sd 5:0:0:0: [sdb] Assuming drive cache: write through [19001.891946] sdb: sdb1 [19001.894713] sd 5:0:0:0: [sdb] Test WP failed, assume Write Enabled [19001.895950] sd 5:0:0:0: [sdb] Cache data unavailable
Hardware address '08:00:20:xx:xx:xx' trying to https://docs.oracle.com/cd/E19455-01/806-1075/msgs-1508/index.html be our address xxx.xxx.xxx.xxx!I/O error Cause Some http://unix.ittoolbox.com/groups/technical-functional/solaris-l/find-cannot-open-io-error-724915 physical Input/Output error has occurred. If the process was writing a file at the time, data corruption is possible. Action First, find out which device is experiencing o error the I/O error. If the device is a tape drive, make sure a tape is inserted into the drive. When this error occurs with a tape in the drive, it is likely that i/o error unix the tape contains an unrecoverable bad spot. If the device is a floppy drive, an unformatted or defective diskette could be at fault. Format the diskette, or obtain a replacement. If the device is a hard disk drive, you might need to run fsck(1M) and possibly even reformat the disk. Technical Notes In some cases this error might occur on a call following the one to which it actually applies. The symbolic name for this error is EIO, errno=5. Previous: Invalid_SS_JWS_HOME:no C:\\lib\basicframe.propertiesNext: IP: Hardware address '08:00:20:xx:xx:xx' trying to be our address xxx.xxx.xxx.xxx! © 2010, Oracle Corporation and/or its affiliates
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