---Problem Description--- Interface configuration not restored after driver unbind/bind
root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 13 bytes 1046 (1.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto ibmveth2 iface ibmveth2 inet static address 9.47.68.120 netmask 255.255.240.0 network 9.47.64.0 broadcast 9.47.79.255 gateway 9.47.79.254 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 9.12.18.2 dns-search pok.stglabs.ibm.com auto enP28p96s0f0 iface enP28p96s0f0 inet static address 10.10.10.11 netmask 255.255.255.0 root@ltciofvtr-s824-lp8:~# ethtool -i enP28p96s0f0 driver: be2net version: 11.1.0.0 firmware-version: 10.2.252.1913 expansion-rom-version: bus-info: 001c:60:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: no supports-priv-flags: yes root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.0 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4098<BROADCAST,MULTICAST> mtu 1500 ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 ifup: interface enP28p96s0f0 already configured root@ltciofvtr-s824-lp8:~# ifdown enP28p96s0f0 RTNETLINK answers: Cannot assign requested address root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 16 bytes 1344 (1.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ---uname output--- Linux ltciofvtr-s824-lp8 4.9.0-12-generic #13-Ubuntu SMP Tue Jan 10 12:52:39 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = IBM,8286-42A LPAR ---Steps to Reproduce--- # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind == Comment - Vaishnavi Bhat Hi, To bind a device to a driver, the device must first not be controlled by any other driver. Can you check for 'driver' in the below before you bind ? $ tree /sys//bus/pci/devices/001c:60:00.0 Thank you. == Comment - Murilo Fossa Vicentini Just adding some information, this is not a driver specific issue, this was also seen with tg3 and i40e adapters . This behavior is a regression when compared to Ubuntu 16.04 where the interfaces where properly reconfigured upon bind with the information set in /etc/network/interfaces Leann, Could you please have someone from the Kernel team look at this reported regression. Thanks. Michael -------- Forwarded Message -------- Subject: [Bug 1660762] [NEW] [Regression] Interface configuration not restored after driver unbind/bind (generic) Date: Tue, 31 Jan 2017 19:49:16 -0000 From: Launchpad Bug Tracker <1660...@bugs.launchpad.net> Reply-To: Bug 1660762 <1660...@bugs.launchpad.net> To: michael.hohnb...@canonical.com bugproxy (bugproxy) has assigned this bug to you for Ubuntu: ---Problem Description--- Interface configuration not restored after driver unbind/bind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 13 bytes 1046 (1.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto ibmveth2 iface ibmveth2 inet static address 9.47.68.120 netmask 255.255.240.0 network 9.47.64.0 broadcast 9.47.79.255 gateway 9.47.79.254 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 9.12.18.2 dns-search pok.stglabs.ibm.com auto enP28p96s0f0 iface enP28p96s0f0 inet static address 10.10.10.11 netmask 255.255.255.0 root@ltciofvtr-s824-lp8:~# ethtool -i enP28p96s0f0 driver: be2net version: 11.1.0.0 firmware-version: 10.2.252.1913 expansion-rom-version: bus-info: 001c:60:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: no supports-priv-flags: yes root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.0 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4098<BROADCAST,MULTICAST> mtu 1500 ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 ifup: interface enP28p96s0f0 already configured root@ltciofvtr-s824-lp8:~# ifdown enP28p96s0f0 RTNETLINK answers: Cannot assign requested address root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 16 bytes 1344 (1.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ---uname output--- Linux ltciofvtr-s824-lp8 4.9.0-12-generic #13-Ubuntu SMP Tue Jan 10 12:52:39 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = IBM,8286-42A LPAR ---Steps to Reproduce--- # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind == Comment - Vaishnavi Bhat Hi, To bind a device to a driver, the device must first not be controlled by any other driver. Can you check for 'driver' in the below before you bind ? $ tree /sys//bus/pci/devices/001c:60:00.0 Thank you. == Comment - Murilo Fossa Vicentini Just adding some information, this is not a driver specific issue, this was also seen with tg3 and i40e adapters . This behavior is a regression when compared to Ubuntu 16.04 where the interfaces where properly reconfigured upon bind with the information set in /etc/network/interfaces ** Affects: ubuntu Importance: Undecided Assignee: Taco Screen team (taco-screen-team) Status: New ** Tags: architecture-ppc64le bugnameltc-151103 severity-high targetmilestone-inin1704 -- [Regression] Interface configuration not restored after driver unbind/bind (generic) https://bugs.launchpad.net/bugs/1660762 You received this bug notification because you are a member of Taco Screen team, which is a bug assignee. I enabled the debug in udev for Ubuntu 17.04 and I am seeing the following in the log: systemd-udevd[4552]: 'ifupdown-hotplug'(err) 'ifquery: error while loading shared libraries: cannot restore segment prot after reloc: Operation not permitted' This command is used in the /lib/udev/ifupdown-hotplug script that is invoked in the 80-ifupdown.rules # cat /lib/udev/rules.d/80-ifupdown.rules # Allow rfkill for users in the netdev group KERNEL=="rfkill", MODE="0664", GROUP="netdev" # Handle allow-hotplug interfaces SUBSYSTEM=="net", ACTION=="add|remove", RUN+="ifupdown-hotplug" The ifquery command is used in the following net_ifup function of the script: net_ifup() { check_program /sbin/ifup # exit if the interface is not configured as allow-hotplug or auto if ! (ifquery --allow hotplug -l; ifquery --allow auto -l) | grep -q "^${INTERFACE}\$"; then exit 0 fi if [ -d /run/systemd/system ]; then exec systemctl --no-block start $(systemd-escape --template ifup@.service $INTERFACE) fi local out=$(ps -C ifup ho args) if [ "${out%$INTERFACE*}" != "$out" ]; then mesg "Already ifup-ing interface $INTERFACE" exit 0 fi wait_for_interface lo exec ifup --allow=hotplug $INTERFACE } So it is failing the first if and exiting the function when it shouldn't be doing so for an interface that is supposed to be configured. And since it uses exit code 0 it doesn't show up as an error in the syslog and it appears that the script is successfully executed. I don't see the error with ifquery when testing in Ubuntu 16.04, so it might be the point of failure we are looking for. What I find strange is that the script and rule are the same in Ubuntu 16.04 and Ubuntu 17.04 and when I manually run the command in Ubuntu 17.04 I get the proper output. # ifquery --allow hotplug -l enP1p12s0f0 # ifquery --allow auto -l lo enP1p12s0f0 I still need to take a closer look to try to figure out what is causing ifquery to fail in the script and not when using it manually. There has been some updates to systemd, udev, ifupdown, and some other packages. After updating all packages in Ubuntu 17.04 the issue is not reproducible anymore, I tried with both bind / unbind and rmmod / modprobe of different drivers and interfaces came back up properly after doing so. So closing this one out on our side. ---Problem Description--- Interface configuration not restored after driver unbind/bind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 13 bytes 1046 (1.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto ibmveth2 iface ibmveth2 inet static address 9.47.68.120 netmask 255.255.240.0 network 9.47.64.0 broadcast 9.47.79.255 gateway 9.47.79.254 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 9.12.18.2 dns-search pok.stglabs.ibm.com auto enP28p96s0f0 iface enP28p96s0f0 inet static address 10.10.10.11 netmask 255.255.255.0 root@ltciofvtr-s824-lp8:~# ethtool -i enP28p96s0f0 driver: be2net version: 11.1.0.0 firmware-version: 10.2.252.1913 expansion-rom-version: bus-info: 001c:60:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: no supports-priv-flags: yes root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.0 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4098<BROADCAST,MULTICAST> mtu 1500 ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 ifup: interface enP28p96s0f0 already configured root@ltciofvtr-s824-lp8:~# ifdown enP28p96s0f0 RTNETLINK answers: Cannot assign requested address root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 16 bytes 1344 (1.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ---uname output--- Linux ltciofvtr-s824-lp8 4.9.0-12-generic #13-Ubuntu SMP Tue Jan 10 12:52:39 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = IBM,8286-42A LPAR ---Steps to Reproduce--- # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind == Comment - Vaishnavi Bhat Hi, To bind a device to a driver, the device must first not be controlled by any other driver. Can you check for 'driver' in the below before you bind ? $ tree /sys//bus/pci/devices/001c:60:00.0 Thank you. == Comment - Murilo Fossa Vicentini Just adding some information, this is not a driver specific issue, this was also seen with tg3 and i40e adapters . This behavior is a regression when compared to Ubuntu 16.04 where the interfaces where properly reconfigured upon bind with the information set in /etc/network/interfaces Leann, Could you please have someone from the Kernel team look at this reported regression. Thanks. Michael -------- Forwarded Message -------- Subject: [Bug 1660762] [NEW] [Regression] Interface configuration not restored after driver unbind/bind (generic) Date: Tue, 31 Jan 2017 19:49:16 -0000 From: Launchpad Bug Tracker <1660...@bugs.launchpad.net> Reply-To: Bug 1660762 <1660...@bugs.launchpad.net> To: michael.hohnb...@canonical.com bugproxy (bugproxy) has assigned this bug to you for Ubuntu: ---Problem Description--- Interface configuration not restored after driver unbind/bind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 13 bytes 1046 (1.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto ibmveth2 iface ibmveth2 inet static address 9.47.68.120 netmask 255.255.240.0 network 9.47.64.0 broadcast 9.47.79.255 gateway 9.47.79.254 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 9.12.18.2 dns-search pok.stglabs.ibm.com auto enP28p96s0f0 iface enP28p96s0f0 inet static address 10.10.10.11 netmask 255.255.255.0 root@ltciofvtr-s824-lp8:~# ethtool -i enP28p96s0f0 driver: be2net version: 11.1.0.0 firmware-version: 10.2.252.1913 expansion-rom-version: bus-info: 001c:60:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: no supports-priv-flags: yes root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.0 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4098<BROADCAST,MULTICAST> mtu 1500 ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 ifup: interface enP28p96s0f0 already configured root@ltciofvtr-s824-lp8:~# ifdown enP28p96s0f0 RTNETLINK answers: Cannot assign requested address root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 16 bytes 1344 (1.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ---uname output--- Linux ltciofvtr-s824-lp8 4.9.0-12-generic #13-Ubuntu SMP Tue Jan 10 12:52:39 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = IBM,8286-42A LPAR ---Steps to Reproduce--- # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind == Comment - Vaishnavi Bhat Hi, To bind a device to a driver, the device must first not be controlled by any other driver. Can you check for 'driver' in the below before you bind ? $ tree /sys//bus/pci/devices/001c:60:00.0 Thank you. == Comment - Murilo Fossa Vicentini Just adding some information, this is not a driver specific issue, this was also seen with tg3 and i40e adapters . This behavior is a regression when compared to Ubuntu 16.04 where the interfaces where properly reconfigured upon bind with the information set in /etc/network/interfaces ** Affects: ubuntu Importance: Undecided Assignee: Taco Screen team (taco-screen-team) Status: New ** Tags: architecture-ppc64le bugnameltc-151103 severity-high targetmilestone-inin1704 -- [Regression] Interface configuration not restored after driver unbind/bind (generic) https://bugs.launchpad.net/bugs/1660762 You received this bug notification because you are a member of Taco Screen team, which is a bug assignee. I enabled the debug in udev for Ubuntu 17.04 and I am seeing the following in the log: systemd-udevd[4552]: 'ifupdown-hotplug'(err) 'ifquery: error while loading shared libraries: cannot restore segment prot after reloc: Operation not permitted' This command is used in the /lib/udev/ifupdown-hotplug script that is invoked in the 80-ifupdown.rules # cat /lib/udev/rules.d/80-ifupdown.rules # Allow rfkill for users in the netdev group KERNEL=="rfkill", MODE="0664", GROUP="netdev" # Handle allow-hotplug interfaces SUBSYSTEM=="net", ACTION=="add|remove", RUN+="ifupdown-hotplug" The ifquery command is used in the following net_ifup function of the script: net_ifup() { check_program /sbin/ifup # exit if the interface is not configured as allow-hotplug or auto if ! (ifquery --allow hotplug -l; ifquery --allow auto -l) | grep -q "^${INTERFACE}\$"; then exit 0 fi if [ -d /run/systemd/system ]; then exec systemctl --no-block start $(systemd-escape --template ifup@.service $INTERFACE) fi local out=$(ps -C ifup ho args) if [ "${out%$INTERFACE*}" != "$out" ]; then mesg "Already ifup-ing interface $INTERFACE" exit 0 fi wait_for_interface lo exec ifup --allow=hotplug $INTERFACE } So it is failing the first if and exiting the function when it shouldn't be doing so for an interface that is supposed to be configured. And since it uses exit code 0 it doesn't show up as an error in the syslog and it appears that the script is successfully executed. I don't see the error with ifquery when testing in Ubuntu 16.04, so it might be the point of failure we are looking for. What I find strange is that the script and rule are the same in Ubuntu 16.04 and Ubuntu 17.04 and when I manually run the command in Ubuntu 17.04 I get the proper output. # ifquery --allow hotplug -l enP1p12s0f0 # ifquery --allow auto -l lo enP1p12s0f0 I still need to take a closer look to try to figure out what is causing ifquery to fail in the script and not when using it manually. There has been some updates to systemd, udev, ifupdown, and some other packages. After updating all packages in Ubuntu 17.04 the issue is not reproducible anymore, I tried with both bind / unbind and rmmod / modprobe of different drivers and interfaces came back up properly after doing so. So closing this one out on our side. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ifupdown in Ubuntu. https://bugs.launchpad.net/bugs/1660762 Title: [Regression] Interface configuration not restored after driver unbind/bind (generic) Status in ifupdown package in Ubuntu: Invalid Bug description: ---Problem Description--- Interface configuration not restored after driver unbind/bind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 13 bytes 1046 (1.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto ibmveth2 iface ibmveth2 inet static address 9.47.68.120 netmask 255.255.240.0 network 9.47.64.0 broadcast 9.47.79.255 gateway 9.47.79.254 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 9.12.18.2 dns-search pok.stglabs.ibm.com auto enP28p96s0f0 iface enP28p96s0f0 inet static address 10.10.10.11 netmask 255.255.255.0 root@ltciofvtr-s824-lp8:~# ethtool -i enP28p96s0f0 driver: be2net version: 11.1.0.0 firmware-version: 10.2.252.1913 expansion-rom-version: bus-info: 001c:60:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: no supports-priv-flags: yes root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind root@ltciofvtr-s824-lp8:~# ls /sys/bus/pci/drivers/be2net 001c:60:00.0 001c:60:00.1 001c:60:00.2 001c:60:00.3 bind module new_id remove_id uevent unbind root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4098<BROADCAST,MULTICAST> mtu 1500 ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 ifup: interface enP28p96s0f0 already configured root@ltciofvtr-s824-lp8:~# ifdown enP28p96s0f0 RTNETLINK answers: Cannot assign requested address root@ltciofvtr-s824-lp8:~# ifup enP28p96s0f0 root@ltciofvtr-s824-lp8:~# ifconfig enP28p96s0f0 enP28p96s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.11 netmask 255.255.255.0 broadcast 10.10.10.255 inet6 fe80::290:faff:fe7a:5840 prefixlen 64 scopeid 0x20<link> ether 00:90:fa:7a:58:40 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 16 bytes 1344 (1.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ---uname output--- Linux ltciofvtr-s824-lp8 4.9.0-12-generic #13-Ubuntu SMP Tue Jan 10 12:52:39 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = IBM,8286-42A LPAR ---Steps to Reproduce--- # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/unbind # echo -n 001c:60:00.0 > /sys/bus/pci/drivers/be2net/bind == Comment - Vaishnavi Bhat Hi, To bind a device to a driver, the device must first not be controlled by any other driver. Can you check for 'driver' in the below before you bind ? $ tree /sys//bus/pci/devices/001c:60:00.0 Thank you. == Comment - Murilo Fossa Vicentini Just adding some information, this is not a driver specific issue, this was also seen with tg3 and i40e adapters . This behavior is a regression when compared to Ubuntu 16.04 where the interfaces where properly reconfigured upon bind with the information set in /etc/network/interfaces To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1660762/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
