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Old 11-21-2013, 11:11 PM   #1
Daedalos
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Distribution: Slackware 14.1 64bit Multi-lib
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Power failure with EXT4


Forgot to plugin my laptop and it died a miserable death.

After seeing that it had died (and remembering the evil data corruption
information I had read about EXT4) I freaked out, and booted it back up.

All of the drives ended up showing as clean.

Does this mean corruption did not occur?

When the computer died it was idling with a screensaver.


Is it possible anything is now corrupt within my install?
 
Old 11-22-2013, 12:29 AM   #2
PrinceCruise
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You're taking it bit too seriously. The ext4 data corruption bug got reproduced under a very particular scenario.
I had my fair share of sudden power offs with ext4 in last couple years and never lost anything because of it. Trust me.

Regards.
 
Old 11-22-2013, 01:19 AM   #3
Daedalos
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Quote:
Originally Posted by PrinceCruise View Post
You're taking it bit too seriously. The ext4 data corruption bug got reproduced under a very particular scenario.
I had my fair share of sudden power offs with ext4 in last couple years and never lost anything because of it. Trust me.

Regards.
I have experienced a few as well (one leading to corruption which was quite a long time ago). That is why I asked.

I am glad to know that it is a rare occurrence.

Thanks.
 
Old 11-22-2013, 04:59 AM   #4
salasi
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Quote:
Originally Posted by Daedalos View Post
Forgot to plugin my laptop and it died a miserable death.

...All of the drives ended up showing as clean.

...Does this mean corruption did not occur?
Probably what happened was there were some problems with files that were open when the computer 'crashed', but that the process of replaying the journal cured any problems. So, temporary 'corruption' (or, at least, inconsistent file information) may have occurred, but it was all automatically dealt with, and there is now no problem.

You may have noticed that it took a little longer to boot after having had this problem, and if you open a terminal during this time, you can see the clean up progressing...not that this is important, assuming everything gets fixed, eventually.
 
Old 11-24-2013, 01:20 AM   #5
Arcosanti
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Location: Mesa, AZ USA
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I have an old Dell Latitude D400 that has a dead battery in it. From time to time the power cord gets pulled out, resulting in an improper shutdown. I've lost count on how many times that has happened. My ext3 and ext4 partitions have not suffered any data corruption at all. To be quite honest with you, I'd be more worried if you was using ext2,as that file system tended to unravel quite fast.
 
Old 11-24-2013, 04:52 PM   #6
jefro
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Did you try a file system check application to test if there has been any file issues?
 
  


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