On 2020-05-05 22:03, Andrew Morton wrote:
On Tue, 05 May 2020 10:42:05 +0200 Roman Penyaev
wrote:
May I ask you to remove "epoll: ensure ep_poll() doesn't miss wakeup
events" from your -mm queue? Jason lately found out that the patch
does not fully solve the problem and this one patch is a se
On Tue, May 5, 2020 at 1:04 PM Andrew Morton wrote:
>
> On Tue, 05 May 2020 10:42:05 +0200 Roman Penyaev wrote:
>
> > May I ask you to remove "epoll: ensure ep_poll() doesn't miss wakeup
> > events" from your -mm queue? Jason lately found out that the patch
> > does not fully solve the problem an
On Tue, 05 May 2020 10:42:05 +0200 Roman Penyaev wrote:
> May I ask you to remove "epoll: ensure ep_poll() doesn't miss wakeup
> events" from your -mm queue? Jason lately found out that the patch
> does not fully solve the problem and this one patch is a second
> attempt to do things correctly in
On 5/5/20 4:40 AM, Roman Penyaev wrote:
> The original problem was described here:
>https://lkml.org/lkml/2020/4/27/1121
>
> There is a possible race when ep_scan_ready_list() leaves ->rdllist
> and ->obflist empty for a short period of time although some events
> are pending. It is quite l
Hi Andrew,
May I ask you to remove "epoll: ensure ep_poll() doesn't miss wakeup
events" from your -mm queue? Jason lately found out that the patch
does not fully solve the problem and this one patch is a second
attempt to do things correctly in a different way (namely to do
the final check unde
The original problem was described here:
https://lkml.org/lkml/2020/4/27/1121
There is a possible race when ep_scan_ready_list() leaves ->rdllist
and ->obflist empty for a short period of time although some events
are pending. It is quite likely that ep_events_available() observes
empty lists a
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