/proc/sys/fs/epoll/max_user_instances hasn't existed since
commit 9df04e1f25effde823a600e755b51475d438f56b
("epoll: drop max_user_instances and rely only on max_user_watches")
from
Date: Thu Jan 29 14:25:26 2009 -0800
which describes to v2.6.29-rc3-24-g9df04e1f25ef.
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@xxxxxxxxxxxxxxxxxx>
---
man2/epoll_create.2 | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/man2/epoll_create.2 b/man2/epoll_create.2
index 4d3566a79..7146757d3 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 +126,17 @@ .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
+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),
--
2.39.2
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