https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248367
Bug ID: 248367
Summary: /sbin/ping fails when run many times simultaneously
Product: Base System
Version: 12.1-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: dse...@gmail.com
How to repeat
# uname -a
FreeBSD r 12.1-RELEASE-p5 FreeBSD 12.1-RELEASE-p5 GENERIC amd64
Run this line some times:
# sh -c 'for i in $(seq 100); do ping -c1 127.0.0.1 >/dev/null & done; wait'
It runs 100 ping processes in parallel. Sometimes some of them fail and produce
such output:
ping: unable to limit access to system.dns service: Socket is not connected
That command is synthetic. In my real system I have this message even for 20
processes run to ping different hosts.
The bug also presents in 11.4-RELEASE-p1.
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