On 21/10/2013 22:37, Kristian Høgsberg wrote:
On Wed, Oct 16, 2013 at 07:29:47PM +0200, Olivier BLIN wrote:
> Hi,
>
> When creating a wl_shm pool with os_create_anonymous_file(), the
> underlying storage file is created on a tmpfs, and its size is set
> with ftruncate().
> Though, when the tmpfs isn't big enough to hold this file, there is
> no error at the pool creation, since it is handled as a sparse file
> and its size is not reserved on the filesystem.
>
[...]
>
> Having a small tmpfs is likely a common use in the embedded world,
> and it would be nice to avoid such obscure crashes if possible.
> What do you think of using fallocate() when supported instead of
> ftruncate() in wayland/weston?
I think using fallocate sounds like a better approach, thanks for
bringing it up. Are you thinking about implementing this?
Hi Kristian,
Sure, I will prepare patches for this in wayland and weston.
Thanks
--
Olivier Blin - SoftAtHome
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