XFS error during mount

[Roman Kravets]

Dear Chris,

After I added parameter vmalloc=256M to my grub2.conf problem resolved.

I don't know need will add it parameter to default grub2.conf or not, but when I 
used my XFS partition with default vmalloc I did't see problem. It's just interested
for me and therefore I asked Community.

On Mon, Jun 30, 2014 at 11:10:01AM -0600, Chris Murphy wrote:
> 
> On Jun 27, 2014, at 2:40 AM, Roman Kravets <admin at softded.net> wrote:
> 
> > Hello!
> > 
> > When I mount my disk with XFS I saw error in dmesg:
> > 
> > Jun 27 11:14:38 softded kernel: XFS (dm-4): xfs_buf_get_uncached: failed to map pages
> > Jun 27 11:14:38 softded kernel: vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
> > Jun 27 11:14:38 softded kernel: vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
> > Jun 27 11:14:38 softded kernel: vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
> > Jun 27 11:14:38 softded kernel: XFS (dm-4): xfs_buf_get_uncached: failed to map pages
> > Jun 27 11:14:38 softded kernel: vmap allocation for size 4194304 failed: use vmalloc=<size> to increase size.
> > Jun 27 11:14:38 softded kernel: XFS (dm-4): xfs_buf_get_uncached: failed to map pages
> > Jun 27 11:14:38 softded kernel: XFS (dm-4): xfs_buf_get_uncached: failed to map pages
> > Jun 27 11:14:38 softded kernel: XFS (dm-4): xfs_buf_get_uncached: failed to map pages
> > Jun 27 11:14:38 softded kernel: XFS (dm-4): Ending clean mount
> > 
> > I have more then 10 millions inodes on partition. My computer: Pentium 4 3GHz and 2 GB memory.
> > I use Fedora 20 with kernel 3.14.7-200.fc20.i686+PAE
> > 
> > What is it meen "use vmalloc=<size> to increase size"? When can I change it parameter?
> 
> I suggest also asking about this directly on the XFS list. XFS  is going to be the default fs for Fedora 21 Server, and will include i686 arch as far as I know. So we should try to squash any related i686 bugs or non-graceful failures as possible.
> 
> Chris Murphy
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