On Fri, 2018-11-30 at 15:26 -0800, Stephen Hemminger wrote: > On my box with Debian testing, I see a new problem with > suspend/resume of wired network device. > Using stock Debian kernel 4.18.0-2-amd64 > > After suspend/resume cycle, IP address is lost. > > Device Info: > $ /sbin/ethtool -i enp12s0 > driver: igb > version: 5.4.0-k > firmware-version: 0. 6-1 > expansion-rom-version: > bus-info: 0000:0c:00.0 > supports-statistics: yes > supports-test: yes > supports-eeprom-access: yes > supports-register-dump: yes > supports-priv-flags: yes > > > $ lspci -v -s 0000:0c:00.0 > 0c:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network > Connection (rev 03) > Subsystem: Gigabyte Technology Co., Ltd I211 Gigabit Network > Connection > Flags: bus master, fast devsel, latency 0, IRQ 17, NUMA node 0 > Memory at dfb00000 (32-bit, non-prefetchable) [size=128K] > I/O ports at c000 [size=32] > Memory at dfb20000 (32-bit, non-prefetchable) [size=16K] > Capabilities: <access denied> > Kernel driver in use: igb > Kernel modules: igb > > State before suspend: > $ ip addr show dev enp12s0 > 4: enp12s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state > UP group default qlen 1000 > link/ether 1c:1b:0d:0a:4b:0e brd ff:ff:ff:ff:ff:ff > inet 192.168.1.18/24 brd 192.168.1.255 scope global enp12s0 > valid_lft forever preferred_lft forever > > State after resume: > > $ ip addr show dev enp12s0 > 4: enp12s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state > UP group default qlen 1000 > link/ether 1c:1b:0d:0a:4b:0e brd ff:ff:ff:ff:ff:f > > Doing ifdown/ifup which restarts the DHCP client does restore the > address. > > Not sure if this is a kernel issue with carrier handling, Intel > driver issue, or DHCP client issue.
Thanks Stephen, I will have someone look into it.
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