Re: git: pmap - Missing critical section when calling lwkt_ipiq_
Please MFC to 2.12.
Cheers,
Alex
On 17/10/11 23:09, Antonio Huete Jimenez wrote:
> commit 9d8625ebaab570eee3ac8eb7269d6001bcda19cf
> Author: Antonio Huete Jimenez <tuxillo@quantumachine.net>
> Date: Mon Oct 17 12:26:22 2011 -0700
>
> pmap - Missing critical section when calling lwkt_ipiq_process().
>
> - pmap_interlock_wait() explicitly calls lwkt_process_ipiq() which expects to
> be in a critical section. We still need cpu_ccfence() to guarantee that
> pmap->pm_active is always read inside the loop.
>
> - Sync pmap_interlock_wait's comment for both i386 and x86_64.
>
> DragonFly-bug: <http://bugs.dragonflybsd.org/issue2152>
>
> Reviewed by: @dillon, @vsrinivas
>
> Summary of changes:
> sys/platform/pc32/i386/pmap.c | 3 ++-
> sys/platform/pc64/x86_64/pmap.c | 11 +++++++++--
> 2 files changed, 11 insertions(+), 3 deletions(-)
>
> http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/9d8625ebaab570eee3ac8eb7269d6001bcda19cf
>
>