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SubjectRe: vfat BKL/lock_super regression in v2.6.26-rc3-g8f59342
El Tue, 19 Aug 2008 22:27:12 -0400, Bart Trojanowski <> escribió:

> I was reading the vfat code, and it turns out that vfat has a "flush"
> mount option. Which is documented in the code (not in the manpage) as:

Yeah, probably the one place where it was documented was (commit ae78bf9c4f5fde3c67e2829505f195d7347ce3e4).

Apparently at least one person must have read it, because there's a lot
of dmesgs in the interweb with this string in it:

"FAT: Unrecognized mount option "flush" or missing value"

due to HAL trying to mount vfat filesystems with that option in kernels
that don't support it. Which broke USB stick support for them, BTW, and
generated a lot of posts in forums asking for help.

IOW: not only this option exist, it's also being used by default in all
the vfat mounts on the linux systems that use HAL, ie. almost all of them.

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