[systemd-bugs] [Bug 84661] systemd-networkd: FD leak on DHCP renewal

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84661

--- Comment #2 from Tomasz Torcz <zdzichu at irc.pl> ---
It happens on Fedora v216, too:

systemd-networkd[933]: enp5s0          : lost carrier
systemd-networkd[933]: enp5s0          : DHCP lease lost
systemd-networkd[933]: enp5s0          : gained carrier
systemd-networkd[933]: enp4s0          : gained carrier
systemd-networkd[933]: enp5s0          : DHCPv4 address 185.6.29.55/24 via
185.6.29.1
systemd-networkd[933]: Failed to save Too many open files
systemd-networkd[933]: enp5s0          : Failed to save link data to
/run/systemd/netif/links/3: Too many open files
=systemd-networkd[933]: enp4s0          : lost carrier
systemd-networkd[933]: enp4s0          : gained carrier
systemd-networkd[933]: enp5s0          : lost carrier
systemd-networkd[933]: enp5s0          : DHCP lease lost
systemd-networkd[933]: enp5s0          : gained carrier
systemd-networkd[933]: enp5s0          : DHCP error: client failed: Too many
open files
systemd-networkd[933]: enp5s0          : DHCP error: client failed: Too many
open files


 lsof output - 1024 fds used.

systemd-n 933 systemd-network 1015u     IPv4            4243274      0t0    
UDP 185.6.29.55:bootpc
systemd-n 933 systemd-network 1016u     pack            4252816      0t0     
IP type=SOCK_DGRAM
systemd-n 933 systemd-network 1017u     pack            4262044      0t0     
IP type=SOCK_DGRAM
systemd-n 933 systemd-network 1018u     IPv4            4252197      0t0    
UDP 185.6.29.55:bootpc
systemd-n 933 systemd-network 1019u     IPv4            4254523      0t0    
UDP 185.6.29.55:bootpc
systemd-n 933 systemd-network 1020u     pack            4263385      0t0     
IP type=SOCK_DGRAM
systemd-n 933 systemd-network 1022u     IPv4            4264996      0t0    
UDP 185.6.29.55:bootpc
systemd-n 933 systemd-network 1023u     raw6                         0t0
4270185
00000000000000000000000000000000:003A->00000000000000000000000000000000:0000
st=07

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