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Description of problem: If your network adapter uses the pcnet32 drivers, there is no way to get the interface speed and duplex. Version-Release number of selected component (if applicable): How reproducible: I managed to reproduce this on a VMware VM, but i guess it could be reproduce on any system that uses the pcnet32 drivers for the network adapter. To reproduce in VMware, just make sure you select "Flexible" for "Adapter Type". If you do this, RHEL6 will use the pcnet32 drivers for the network adapter. Actual results: [root@localhost ~]# dmesg | grep eth eth0: registered as PCnet/PCI II 79C970A udev: renamed network interface eth0 to eth3 eth3: link up eth3: no IPv6 routers present [root@localhost ~]# ethtool eth3 Settings for eth3: Current message level: 0x00000007 (7) Link detected: yes [root@localhost ~]# ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 link/ether 00:50:56:9e:00:80 brd ff:ff:ff:ff:ff:ff UNKNOWN is where the duplex should be [root@localhost ~]# lsmod Module Size Used by ipv6 264702 12 dm_mirror 11620 0 dm_region_hash 10127 1 dm_mirror dm_log 8520 2 dm_mirror,dm_region_hash ppdev 7335 0 parport_pc 19348 0 parport 31019 2 ppdev,parport_pc pcnet32 29208 0 mii 4289 1 pcnet32 vmware_balloon 5785 0 i2c_piix4 11098 0 i2c_core 25799 1 i2c_piix4 sg 24778 0 ext3 117020 2 jbd 44054 1 ext3 mbcache 5918 1 ext3 sr_mod 14187 0 cdrom 34035 1 sr_mod sd_mod 33344 4 crc_t10dif 1191 1 sd_mod pata_acpi 2487 0 ata_generic 2555 0 ata_piix 19016 0 mptspi 14637 3 mptscsih 30378 1 mptspi mptbase 84672 2 mptspi,mptscsih scsi_transport_spi 20340 1 mptspi dm_mod 63859 2 dm_mirror,dm_log Expected results: You should be able to see the speed/duplex using the ethtool command for example. On the exact same system from where i extracted the above information, i added another network adapter, but instead of "Flexible" i selected "E1000" for "Adapter Type", this way the RHEL6 system will use the e1000 drivers instead of pcnet32. Everything works fine with the e1000 drivers [root@localhost ~]# dmesg | grep eth0 e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection udev: renamed network interface eth0 to eth4 [root@localhost ~]# ethtool eth4 Settings for eth4: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Supports Wake-on: d Wake-on: d Current message level: 0x00000007 (7) Link detected: yes [root@localhost ~]# lsmod Module Size Used by sit 8292 0 tunnel4 2089 1 sit ipv6 264702 13 sit dm_mirror 11620 0 dm_region_hash 10127 1 dm_mirror dm_log 8520 2 dm_mirror,dm_region_hash ppdev 7335 0 parport_pc 19348 0 parport 31019 2 ppdev,parport_pc e1000 95440 0 vmware_balloon 5785 0 i2c_piix4 11098 0 i2c_core 25799 1 i2c_piix4 sg 24778 0 ext3 117020 2 jbd 44054 1 ext3 mbcache 5918 1 ext3 sd_mod 33344 4 crc_t10dif 1191 1 sd_mod sr_mod 14187 0 cdrom 34035 1 sr_mod mptspi 14637 3 mptscsih 30378 1 mptspi mptbase 84672 2 mptspi,mptscsih scsi_transport_spi 20340 1 mptspi pata_acpi 2487 0 ata_generic 2555 0 ata_piix 19016 0 dm_mod 63859 2 dm_mirror,dm_log Additional info:
Forgot to add, this is my system: [root@localhost ~]# uname -a Linux localhost.localdomain 2.6.32-71.el6.i686 #1 SMP Wed Sep 1 01:26:34 EDT 2010 i686 i686 i386 GNU/Linux [root@localhost ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.0 (Santiago)
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Can you strace the ethtool command when you run it please, and post the results here? Also, can you please tell me what the values of /sys/class/net/eth3/[speed|duplex] are on the affected guest? Thanks.
Sorry, i didn't have time to work on this. But if anyone else has a vmware machine available it's very simple. Just set the network adapter type on Flexible. If not, i'll try to find time to reproduce it.
Please do.
ping any feedback?
ok, no response in a month, closing.