On Mon, Apr 08, 2024 at 04:58:18PM GMT, Michal Koutný wrote:
> The kernel provides mechanisms, while it should not imply policies --
> default pid_max seems to be an example of the policy that does not fit
> all. At the same time pid_max must have some value assigned, so use the
> end of the allow
On Thu, Apr 11, 2024 at 03:03:31PM -0700, Andrew Morton
wrote:
> A large increase in the maximum number of processes.
The change from (some) default to effective infinity is the crux of the
change. Because that is only a number.
(Thus I don't find the number's 12700% increase alone a big change.
On Thu, 11 Apr 2024 17:40:02 +0200 Michal Koutný wrote:
> Hello.
>
> On Mon, Apr 08, 2024 at 01:29:55PM -0700, Andrew Morton
> wrote:
> > That seems like a large change.
>
> In what sense is it large?
A large increase in the maximum number of processes. Or did I misinterpret?
Hello.
On Mon, Apr 08, 2024 at 01:29:55PM -0700, Andrew Morton
wrote:
> That seems like a large change.
In what sense is it large?
I tried to lookup the code parts that depend on this default and either
add the other patches or mention the impact (that part could be more
thorough) in the commi
: fec50db7033ea478773b159e0e2efb135270e3b7
patch link:
https://lore.kernel.org/r/20240408145819.8787-3-mkoutny%40suse.com
patch subject: [PATCH 2/3] kernel/pid: Remove default pid_max value
config: arm-allnoconfig
(https://download.01.org/0day-ci/archive/20240409/202404090903.3jz667sn
base: fec50db7033ea478773b159e0e2efb135270e3b7
patch link:
https://lore.kernel.org/r/20240408145819.8787-3-mkoutny%40suse.com
patch subject: [PATCH 2/3] kernel/pid: Remove default pid_max value
config: alpha-allnoconfig
(https://download.01.org/0day-ci/archive/20240409/202404090849.mgj3z0xi
On Mon, 8 Apr 2024 16:58:18 +0200 Michal Koutný wrote:
> The kernel provides mechanisms, while it should not imply policies --
> default pid_max seems to be an example of the policy that does not fit
> all. At the same time pid_max must have some value assigned, so use the
> end of the allowed r
pid_max is a per-pidns (thus global too) limit on a number of tasks the
kernel admits. The knob can be configured by admin in the range between
pid_max_min and pid_max_max (sic). The default value sits between
those and it typically equals max(32k, 1k*nr_cpus).
The nr_cpu scaling was introduced in
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