[9fans] mallocalign?

[Tim Newsham <newsham@lava.net>]

Hi,
   I'm wondering how much confidence there is in the mallocalign
implementation.  I'm seeing strange behavior in my code using it.
I started seeing a crash when I changed a simple buffer size definition
in one of my modules.  On a hunch I replaced mallocalign with
a macro that uses xspanalloc and the problem disappeared.

Normally my first instinct would be that the implementation is solid
and that I have a heap corruption issue somewhere, but I noticed
that mallocalign is not used elsewhere in the kernel sources right
now.  I'm also fairly confident about the heap buffers that were
directly affected by the size change (although corruption elsewhere
isnt out of the question).  Has this function seen much use yet?

(meanwhile I'm still working under the assumption that my code
trashed the heap somehow).

Tim N.