Hi,
On 2023-07-08 21:56, наб wrote:
> /proc/sys/fs/epoll/max_user_instances hasn't existed since 2009.
>
> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@xxxxxxxxxxxxxxxxxx>
> ---
> I blindly copied the tag and didn't check, but even if I did,
> 'Linux v[0-9]' does return results, so I wouldn't've been dissuaded.
Meh, I still haven't managed to kill those. Feel free to fix them if
you want, or if you meet them while doing one of your patches. ;)
>
> man2/epoll_create.2 | 22 ++++++++++++++--------
> 1 file changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/man2/epoll_create.2 b/man2/epoll_create.2
> index 4d3566a79..b51f5051e 100644
> --- a/man2/epoll_create.2
> +++ b/man2/epoll_create.2
> @@ -83,14 +83,6 @@ .SH ERRORS
> .IR flags .
> .TP
> .B EMFILE
> -The per-user limit on the number of epoll instances imposed by
> -.I /proc/sys/fs/epoll/max_user_instances
> -was encountered.
> -See
> -.BR epoll (7)
> -for further details.
> -.TP
> -.B EMFILE
> The per-process limit on the number of open file descriptors has been reached.
> .TP
> .B ENFILE
> @@ -134,6 +126,20 @@ .SH HISTORY
> in order to ensure backward compatibility when new
> .B epoll
> applications are run on older kernels.
> +.PP
> +Prior to Linux 2.6.29,
> +.\" commit 9df04e1f25effde823a600e755b51475d438f56b
> +.\" ("epoll: drop max_user_instances and rely only on max_user_watches")
> +.\" Date: Thu Jan 29 14:25:26 2009 -0800
> +.\" v2.6.29-rc3-24-g9df04e1f25ef
I prefer minimal source code comments. Please keep only the commit 9f... line.
The rest should go in the commit message.
Thanks,
Alex
> +a
> +.I /proc/sys/fs/epoll/max_user_instances
> +sysctl limited live epolls for each real user ID,
> +and caused
> +.BR epoll_create ()
> +to fail with
> +.B EMFILE
> +on overrun.
> .SH SEE ALSO
> .BR close (2),
> .BR epoll_ctl (2),
--
<http://www.alejandro-colomar.es/>
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