On Tue, Jun 02, 2020 at 04:15:17PM +0200, Vlastimil Babka wrote:
> SLUB allows runtime changing of page allocation order by writing into the
> /sys/kernel/slab//order file. Jann has reported [1] that this interface
> allows the order to be set too small, leading to crashes.
>
> While it's
On Tue, Jun 02, 2020 at 04:15:17PM +0200, Vlastimil Babka wrote:
> SLUB allows runtime changing of page allocation order by writing into the
> /sys/kernel/slab//order file. Jann has reported [1] that this interface
> allows the order to be set too small, leading to crashes.
>
> While it's
SLUB allows runtime changing of page allocation order by writing into the
/sys/kernel/slab//order file. Jann has reported [1] that this interface
allows the order to be set too small, leading to crashes.
While it's possible to fix the immediate issue, closer inspection reveals
potential races.
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