[Bug 258] Kernel (smp) lockup: ioctl(XFS_IOC_RESVSP); truncate() on fs with unwritten=1

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http://oss.sgi.com/bugzilla/show_bug.cgi?id=258





------- Additional Comments From mikes@xxxxxx  2003-16-07 15:49 PDT -------
Nathan,
 
I've tried the fix, and it works great. On fs with unwritten=1 it doesn't cause
lots of io, and finishes instantly. On fs unwritten=0 does lots of io, but
doesn't render system unresponsive for couple hours.
My understanding is that in the case when unwritten=0 there is no other way
around, but to zero out extents (heavy io).

Thanks,
 -- Mike.



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