Hello, Michal.
On Wed, Aug 07, 2013 at 07:30:51PM +0200, Michal Hocko wrote:
> On Wed 07-08-13 16:47:30, Michal Hocko wrote:
> > On Wed 07-08-13 15:57:34, Michal Hocko wrote:
> > [...]
> > > Hmm, OK so you think that the fd limit is sufficient already?
> >
> > Hmm, that would need to touch the co
On Wed 07-08-13 16:47:30, Michal Hocko wrote:
> On Wed 07-08-13 15:57:34, Michal Hocko wrote:
> [...]
> > Hmm, OK so you think that the fd limit is sufficient already?
>
> Hmm, that would need to touch the code as well (the register callback
> would need to make sure only one event is registered p
On Wed 07-08-13 15:57:34, Michal Hocko wrote:
[...]
> Hmm, OK so you think that the fd limit is sufficient already?
Hmm, that would need to touch the code as well (the register callback
would need to make sure only one event is registered per cfile). But yes
this way would be better. I will send a
On Wed, Aug 07, 2013 at 03:57:34PM +0200, Michal Hocko wrote:
> On Wed 07-08-13 09:47:41, Tejun Heo wrote:
> > Hello,
> >
> > On Wed, Aug 07, 2013 at 03:37:46PM +0200, Michal Hocko wrote:
> > > > It isn't different from listening from epoll, for example.
> > >
> > > epoll limits the number of wat
On Wed 07-08-13 09:47:41, Tejun Heo wrote:
> Hello,
>
> On Wed, Aug 07, 2013 at 03:37:46PM +0200, Michal Hocko wrote:
> > > It isn't different from listening from epoll, for example.
> >
> > epoll limits the number of watchers, no?
>
> Not that I know of. It'll be limited by max open fds but I
Hello,
On Wed, Aug 07, 2013 at 03:37:46PM +0200, Michal Hocko wrote:
> > It isn't different from listening from epoll, for example.
>
> epoll limits the number of watchers, no?
Not that I know of. It'll be limited by max open fds but I don't
think there are other limits. Why would there be?
>
On Wed 07-08-13 09:08:36, Tejun Heo wrote:
> Hello, Michal.
>
> On Wed, Aug 07, 2013 at 01:28:26PM +0200, Michal Hocko wrote:
> > There is no limit for the maximum number of oom_control events
> > registered per memcg. This might lead to an user triggered memory
> > depletion if a regular user is
On Wed, Aug 07, 2013 at 09:08:36AM -0400, Tejun Heo wrote:
> Hello, Michal.
>
> On Wed, Aug 07, 2013 at 01:28:26PM +0200, Michal Hocko wrote:
> > There is no limit for the maximum number of oom_control events
> > registered per memcg. This might lead to an user triggered memory
> > depletion if a
Hello, Michal.
On Wed, Aug 07, 2013 at 01:28:26PM +0200, Michal Hocko wrote:
> There is no limit for the maximum number of oom_control events
> registered per memcg. This might lead to an user triggered memory
> depletion if a regular user is allowed to register events.
>
> Let's be more strict a
There is no limit for the maximum number of oom_control events
registered per memcg. This might lead to an user triggered memory
depletion if a regular user is allowed to register events.
Let's be more strict and cap the number of events that might be
registered. MAX_OOM_NOTIFY_EVENTS value is mor
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