Re: [CHECKER] crash after fsync causing serious FS corruptions (ext2,2.6.11)

[Robert Hancock]

Jens Axboe wrote:
> fsync on ext2 only really guarantees that the data has reached
> the disk, what the disk does it outside the realm of the fs.
> If the ide drive has write back caching enabled, the data just
> might only be in cache. If the power is removed right after fsync
> returns, the drive might not get a chance to actually commit the
> write to platter.

Is this really the behavior in the current kernel? If so this seems 
quite wrong to me - if the application did an fsync, I think the kernel 
should be sending cache flush commands to the drive before the call 
completes..

--
Robert Hancock      Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/

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