[Bug 1511118] [NEW] 100% cpu usage with unresolved name server
Public bug reported:
Description:Ubuntu 15.10
Release:15.10
Package Info:
==
socat:
Installed: 1.7.3.0-1
Candidate: 1.7.3.0-1
Version table:
*** 1.7.3.0-1 0
500 http://gr.archive.ubuntu.com/ubuntu/ wily/universe i386 Packages
100 /var/lib/dpkg/status
[Impact]
At Ubuntu Wily OS, when we use the socat with a nameserver which is not defined
at /etc/hosts and is unknown, the system hits 100% cpu usage. Additional, to
terminate the process you must give -9 parameter in kill command. Ctrl+C does
not terminate the process.
With older versions of socat (< 1.7.3.0 upstream) the system does not
drive up to 100% cpu usage, but prints appropriate error message.
[Test case]
* A simple test to validate the issue, is to execute the below command:
socat tcp:server-local:789 -
* Using older version of socat the above command will print:
socat[2756] E getaddrinfo("server-local", "(null)", {1,0,1,6}, {}): Name or
service not known
[Regression Potential]
This bug affects the releases that use socat 1.7.3.0 upstream version (Wily,
Xenial). The Vivid, Trusty and Precise are not affected.
** Affects: socat (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/158
Title:
100% cpu usage with unresolved name server
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[Bug 1415785] Re: Please remove all ltsp* blacklisting
SRU Verification Precise: I have verified that update-manager (1:0.156.14.18) in -proposed fixes the above bug and doesn't remove ltsp packages on dist-upgrades and doesn't break LTSP installations as shown in the attached screenshot.. Marking as verification done. Thanks. ** Attachment added: "verification-done" https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1415785/+attachment/4317408/+files/update-manager%40lp1415785.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1415785 Title: Please remove all ltsp* blacklisting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1415785/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1415785] Re: Please remove all ltsp* blacklisting
** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1415785 Title: Please remove all ltsp* blacklisting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1415785/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1402706] Re: More explicit wording needed for HWE updates
** Attachment added: "verification-done" https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1402706/+attachment/4317852/+files/update-manager%40lp1402706.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1402706 Title: More explicit wording needed for HWE updates To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1402706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1402706] Re: More explicit wording needed for HWE updates
SRU Verification Precise: I have verified that update-manager (1:0.156.14.18) in precise-proposed changes the message to "New important security and hardware support update" as shown in the attached screenshot. Marking as verification done. Thanks. ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1402706 Title: More explicit wording needed for HWE updates To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1402706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1420217] Re: HWE meta packages "linux-signed-generic"/"linux-signed-image-generic" not considered
I too verify that 1:0.156.14.18 in precise-proposed fixes the issue. With update-manager 1:0.156.14.17 the exact output of the "hwe-support- status --show-replacements" is: administrator@server:~$ hwe-support-status --show-replacements linux-generic-lts-trusty libgl1-mesa-glx-lts-trusty xserver-xorg-lts-trusty linux-image-generic-lts-trusty and after upgrading update-manager to 1:0.156.14.18 the output is: administrator@server:~$ hwe-support-status --show-replacements linux-generic-lts-trusty libgl1-mesa-glx-lts-trusty linux-image-generic-lts-trusty linux-signed-generic-lts-trusty linux-signed-image-generic-lts-trusty xserver-xorg-lts-trusty Also, as mentioned by Alkis Georgopoulos at the above comment after removing the update-manager package the exact output of the command "hwe-support-status" 1:0.156.14.17 gives an apt-get line without requiring the "--show-replacements" and without mentioning the signed packages. administrator@server:~$ hwe-support-status Your current Hardware Enablement Stack (HWE) is no longer supported since 2014-08-07. Security updates for critical parts (kernel and graphics stack) of your system are no longer available. For more information, please see: http://wiki.ubuntu.com/1204_HWE_EOL To upgrade to a supported (or longer supported) configuration: * Upgrade from Ubuntu 12.04 LTS to Ubuntu 14.04 LTS by running: sudo do-release-upgrade OR * Install a newer HWE version by running: sudo apt-get install linux-generic-lts-trusty libgl1-mesa-glx-lts-trusty xserver-xorg-lts-trusty linux-image-generic-lts-trusty and reboot your system. And with 1:0.156.14.18 the output is: administrator@server:~$ hwe-support-status Your current Hardware Enablement Stack (HWE) is no longer supported since 2014-08-07. Security updates for critical parts (kernel and graphics stack) of your system are no longer available. For more information, please see: http://wiki.ubuntu.com/1204_HWE_EOL To upgrade to a supported (or longer supported) configuration: * Upgrade from Ubuntu 12.04 LTS to Ubuntu 14.04 LTS by running: sudo do-release-upgrade OR * Install a newer HWE version by running: sudo apt-get install linux-generic-lts-trusty libgl1-mesa-glx-lts-trusty linux-image-generic-lts-trusty linux-signed-generic-lts-trusty linux-signed-image-generic-lts-trusty xserver-xorg-lts-trusty and reboot your system. Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1420217 Title: HWE meta packages "linux-signed-generic"/"linux-signed-image-generic" not considered To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1420217/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1016895] Re: smbd crashed with SIGABRT in dump_core()/setgroups being passed a -1 group is causing crashes.
** Branch unlinked: lp:~lefteris-nikoltsios/+junk/samba-lp1016895 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1016895 Title: smbd crashed with SIGABRT in dump_core()/setgroups being passed a -1 group is causing crashes. To manage notifications about this bug go to: https://bugs.launchpad.net/samba/+bug/1016895/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1016895] Re: smbd crashed with SIGABRT in dump_core()/setgroups being passed a -1 group is causing crashes.
** Branch unlinked: lp:~lefteris-nikoltsios/+junk/samba-lp1016895-test2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1016895 Title: smbd crashed with SIGABRT in dump_core()/setgroups being passed a -1 group is causing crashes. To manage notifications about this bug go to: https://bugs.launchpad.net/samba/+bug/1016895/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1016895] Re: smbd crashed with SIGABRT in dump_core()/setgroups being passed a -1 group is causing crashes.
** Branch linked: lp:~lefteris-nikoltsios/ubuntu/precise/samba/samba- lp1016895 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1016895 Title: smbd crashed with SIGABRT in dump_core()/setgroups being passed a -1 group is causing crashes. To manage notifications about this bug go to: https://bugs.launchpad.net/samba/+bug/1016895/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
