Re: new sysctl tunable knob for tcpip

2017-07-31 Thread valdis . kletnieks
On Mon, 31 Jul 2017 15:16:34 +0200, Massimo Sala said: > I wish to suggest to developers to add this new knob : Note that most of the existing knobs were chosen fairly carefully, and that sometimes, the values chosen aren't immediately obvious, because they have to also take into account

new sysctl tunable knob for tcpip : errata corrige

2017-07-31 Thread Massimo Sala
> net...@vger.kernel.org > greg k-h I see now the emails are trunated. Greg, I presume you wrote "netdev" ? Sala -- Forwarded message -- From: Massimo Sala Date: Mon, 31 Jul 2017 15:16:34 +0200 Subject: Re: new sysctl tunable knob for tcpip To:

Re: new sysctl tunable knob for tcpip

2017-07-31 Thread Massimo Sala
I wish to suggest to developers to add this new knob : tcp_retries2_time - INTEGER This value influences the timeout (seconds) of an alive TCP connection, when RTO retransmissions remain unacknowledged. RFC 1122 recommends at least 100 seconds for the timeout,

Re: OOM killer hung the whole system

2017-07-31 Thread Rock Lee
On Mon, Jul 31, 2017 at 3:56 AM, Ruben Safir wrote: > On 07/30/2017 03:51 PM, Mulyadi Santosa wrote: > > ust malloc() without free(). > > > and that surprises you? > > Yes, it suprised me. Since I ran this malloc() without free() on my laptop and raspberrypi, there was no

Re: OOM killer hung the whole system

2017-07-31 Thread Rock Lee
On Tue, Jul 25, 2017 at 7:29 PM, Yubin Ruan wrote: > 2017-07-25 17:59 GMT+08:00 Rock Lee : > > Hi, > > > > I was using a program to test OOM killer, but OOM killer hung my board. > The > > test snippet is very simple, just malloc() without free(). >

Re: OOM killer hung the whole system

2017-07-31 Thread Rock Lee
On Mon, Jul 31, 2017 at 3:51 AM, Mulyadi Santosa wrote: > > > On Tue, Jul 25, 2017 at 4:59 PM, Rock Lee wrote: > >> Hi, >> >> I was using a program to test OOM killer, but OOM killer hung my board. >> The test snippet is very simple, just