On Tuesday, May 26, 2020 at 4:26:09 AM UTC-4, Nadav Har'El wrote:
>
> On Sun, May 17, 2020 at 7:59 AM Waldek Kozaczuk > wrote:
>
>> One of the things, I would like to tackle for the next release is making
>> the loader.elf smaller. The primary motivation is to lower memory
>> utilization. But
Great! OSV_ELF_MLOCK_OBJECT seems very useful.
Thanks.
2020년 5월 26일 화요일 오후 4시 25분 57초 UTC+9, Nadav Har'El 님의 말:
>
> On Tue, May 26, 2020 at 9:41 AM Wonsup Yoon > wrote:
>
>> Actually, I used preempt_lock to prevent data races.
>> If two concurrent threads in a core access same per-cpu
On Tue, May 26, 2020 at 4:22 AM Wonsup Yoon wrote:
> Thank you for the response.
>
> Yes, dynamic_percpu is perfect for my purpose.
>
> However, I encountered another issue.
>
> If I use dynamic_percpu with preempt-lock (I think it is very common
> pattern), it abort due to assertion failed.
>
Actually, I used preempt_lock to prevent data races.
If two concurrent threads in a core access same per-cpu variable, I think
we still need preempt lock.
example)
counter's initial value: 0
CPU 0
Thread AA_local = counter + 1 (A_local = 1)
On Mon, 2020-05-25 at 09:15 +0300, Nadav Har'El wrote:
>
> Do you mean
> https://github.com/cloudius-systems/osv/commit/d52cb12546ff2acd5255a2ac8897891e421f07dc
> which just turned off optimization?
Yes.
> At the time, I suggested the memset() fix for #913, because seemed to
> me like an
On Tue, May 26, 2020 at 9:41 AM Wonsup Yoon wrote:
> Actually, I used preempt_lock to prevent data races.
> If two concurrent threads in a core access same per-cpu variable, I think
> we still need preempt lock.
>
This is true - if you have two threads in the same core that access the
same
On Tue, May 26, 2020 at 8:29 AM Waldek Kozaczuk
wrote:
> Hi,
>
> I am going to be sending proper "Next Release Proposal" email later this
> week
>
Thanks for doing this!
> (or next) and "Librarization/Modularization" will be a key part of it.
> Currently, OSv kernel provides quite a
On Sun, May 17, 2020 at 7:59 AM Waldek Kozaczuk
wrote:
> One of the things, I would like to tackle for the next release is making
> the loader.elf smaller. The primary motivation is to lower memory
> utilization. But at the same time, I would also like to keep the kernel
> (the release version)
