[Bug 1667790] Re: PXE Installation Failure - Ubuntu14.04.5
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: debian-installer (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667790 Title: PXE Installation Failure - Ubuntu14.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1667790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1667790] Re: PXE Installation Failure - Ubuntu14.04.5
Hi, This failure was a result of netcfg segfault seen on the logs. --8<--->8 Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing wireless options for p4p1 Feb 24 06:31:51 netcfg[3724]: DEBUG: Success! Feb 24 06:31:52 main-menu[2545]: WARNING **: Configuring 'netcfg' failed with error code 139 Feb 24 06:31:52 main-menu[2545]: WARNING **: Menu item 'netcfg' failed. Feb 24 06:31:52 kernel: [ 62.915859] netcfg[3724]: segfault at 0 ip 7f1ab154e34f sp 7ffc781aec78 error 4 in libc.so.6[7f1ab14b1000+1ba000] --8<--->8 We have root caused a bug in the qede driver that was triggering this. qede IOCTL implementation returns '0' instead of -EOPNOTSUPP for all IOCTL requests made by user. wireless-lib used by netcfg as part of the PXE boot process tries learning whether our interface is wireless via sending an IOCTL; As we return '0', it learns we're a wireless interface and does some incorrect configurations. Later, netcfg would segfault due to broken information. Fixed qede IOCTL callback to return -EOPNOTSUPP to everything other than the timesync requests. Having said that, does netcfg also require a fix to gracefully fail in this case with a meaningful error message, rather than segfault so that it's easier to debug such issues. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667790 Title: PXE Installation Failure - Ubuntu14.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1667790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1667790] Re: PXE Installation Failure - Ubuntu14.04.5
Hi Brian, In case of non working interface we observe these logs - related to netcfg segfault. This is what we see main difference between working [where we don't see these failure logs] and non working interface. eb 24 06:31:49 dhclient: DHCPREQUEST of 192.168.10.91 on p4p1 to 255.255.255.255 port 67 (xid=0x419a4dac) Feb 24 06:31:49 dhclient: DHCPACK of 192.168.10.91 from 192.168.10.100 Feb 24 06:31:49 dhclient: bound to 192.168.10.91 -- renewal in 2494 seconds. Feb 24 06:31:51 netcfg[3724]: DEBUG: Reading domain name returned via DHCP Feb 24 06:31:51 netcfg[3724]: DEBUG: DHCP domain name is 'redhatguides.local' Feb 24 06:31:51 netcfg[3724]: DEBUG: Reading nameservers from /etc/resolv.conf Feb 24 06:31:51 netcfg[3724]: DEBUG: Read nameserver 192.168.10.1 Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 1 Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 2 Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 5 Feb 24 06:31:51 netcfg[3724]: INFO: DHCP hostname: "kickseed" Feb 24 06:31:51 netcfg[3724]: DEBUG: kickseed is a valid FQDN Feb 24 06:31:51 netcfg[3724]: DEBUG: Preseeding domain from global: redhatguides.local Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 6 Feb 24 06:31:51 netcfg[3724]: DEBUG: Network config complete Feb 24 06:31:51 netcfg[3724]: DEBUG: No interface given; clearing /etc/network/interfaces Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing informative header Feb 24 06:31:51 netcfg[3724]: DEBUG: Success! Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing loopback interface Feb 24 06:31:51 netcfg[3724]: DEBUG: Success! Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing DHCP stanza for p4p1 Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing wireless options for p4p1 Feb 24 06:31:51 netcfg[3724]: DEBUG: Success! Feb 24 06:31:52 main-menu[2545]: WARNING **: Configuring 'netcfg' failed with error code 139 Feb 24 06:31:52 main-menu[2545]: WARNING **: Menu item 'netcfg' failed. Feb 24 06:31:52 kernel: [ 62.915859] netcfg[3724]: segfault at 0 ip 7f1ab154e34f sp 7ffc781aec78 error 4 in libc.so.6[7f1ab14b1000+1ba000] but we don't know why this can be caused - Any idea how to debug this further for the cause of netcfg segfault ? Appreciate your help in regards to this. Thanks, Manish -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667790 Title: PXE Installation Failure - Ubuntu14.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1667790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1667790] Re: PXE Installation Failure - Ubuntu14.04.5
** Package changed: ubuntu => debian-installer (Ubuntu) ** Tags added: trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667790 Title: PXE Installation Failure - Ubuntu14.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1667790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1667790] Re: PXE Installation Failure - Ubuntu14.04.5
Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode. To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1667790/+editstatus and add the package name in the text box next to the word Package. [This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.] ** Tags added: bot-comment -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667790 Title: PXE Installation Failure - Ubuntu14.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1667790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
