On 07/26, Eric W. Biederman wrote:
>
> > Easy to fix, but perhaps we can simply add recalc_sigpending() into
> > schedule_tail() ? It already does more than just finish_task_switch/etc.
> >
> > This way we do not need the new helper (which btw can only be used by
> > copy_process).
>
> The problem
On 07/26, Eric W. Biederman wrote:
>
> > Easy to fix, but perhaps we can simply add recalc_sigpending() into
> > schedule_tail() ? It already does more than just finish_task_switch/etc.
> >
> > This way we do not need the new helper (which btw can only be used by
> > copy_process).
>
> The problem
Oleg Nesterov writes:
> On 07/23, Eric W. Biederman wrote:
>>
>> --- a/kernel/fork.c
>> +++ b/kernel/fork.c
>> @@ -1988,6 +1988,7 @@ static __latent_entropy struct task_struct
>> *copy_process(
>>>signal->thread_head);
>> }
>>
Oleg Nesterov writes:
> On 07/23, Eric W. Biederman wrote:
>>
>> --- a/kernel/fork.c
>> +++ b/kernel/fork.c
>> @@ -1988,6 +1988,7 @@ static __latent_entropy struct task_struct
>> *copy_process(
>>>signal->thread_head);
>> }
>>
On 07/23, Eric W. Biederman wrote:
>
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -1988,6 +1988,7 @@ static __latent_entropy struct task_struct
> *copy_process(
> >signal->thread_head);
> }
> attach_pid(p, PIDTYPE_PID);
> +
On 07/23, Eric W. Biederman wrote:
>
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -1988,6 +1988,7 @@ static __latent_entropy struct task_struct
> *copy_process(
> >signal->thread_head);
> }
> attach_pid(p, PIDTYPE_PID);
> +
Add a function calculate_sigpending to test to see if any signals are
pending for a new task immediately following fork. Signals have to
happen either before or after fork. Today our practice is to push
all of the signals to before the fork, but that has the downside that
frequent or periodic
Add a function calculate_sigpending to test to see if any signals are
pending for a new task immediately following fork. Signals have to
happen either before or after fork. Today our practice is to push
all of the signals to before the fork, but that has the downside that
frequent or periodic
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