The problem is probably a current bug with large allocation
groups in the filesystem; try re-mkfs'ing with -d agsize=4g
and see if the problem goes away. I hope(!) to check in a fix
for this in the next day or two (the fix is in kernelspace,
and does not affect on-disk xfs format).
On Mon, 12 Jan 2004, Kelsey Cummings wrote:
> I'm new to using xfs, so please forgive me if I'm missing somehting
> obvious. I've heard good things about xfs' performance, and I have to
> admit I'm quite impressed with what I've seen so far. However, I've run
> into some confusing problems.
> With all of the XFS kernels I've build (2.4.24-pre1, 2.4.25-pre4) I've had
> trouble creating large files.
> dd if=/dev/zero of=/mnt/blah bs=1024k count=10000
> locks up at app 6gigs with bdflush and kswapd consumming all available CPU.
> Once this occurs any thing attempting to access the filesystem gets stuck
> waiting on the kernel.