[Bug 1627270] [NEW] Random segfaults on __pthread_create_2_1
Public bug reported:
We are experiencing random segfaults on our pdnsd daemon.
System versions:
Ubuntu 16.04.1 LTS
Arch: 64bits
pdnsd version: 1.2.9a-par-3
libc6 version: 2.23-0ubuntu3
kernel version: Linux api 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33
UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
In syslog:
Sep 24 07:05:35 api kernel: [84418.840445] pdnsd[32156]: segfault at
7f18f395cd13 ip 7f18f456decf sp 7f18f2158bc0 error 4 in
libpthread-2.23.so[7f18f4566000+18000]
I enabled core dump, apport report is attached to this issue.
When trying to backtrace the segfault:
Core was generated by `/usr/sbin/pdnsd --daemon -p /var/run/pdnsd.pid'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 __pthread_create_2_1 (newthread=, attr=,
start_routine=, arg=) at pthread_create.c:713
713 pthread_create.c: No such file or directory.
[Current thread is 1 (Thread 0x7f34be48a700 (LWP 2991))]
(gdb) bt
#0 __pthread_create_2_1 (newthread=, attr=,
start_routine=, arg=) at pthread_create.c:713
#1 0x0040ece5 in ?? ()
#2 0x7f34c089e6fa in start_thread (arg=0x7f34be48a700) at
pthread_create.c:333
#3 0x7f34c05d4b5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
pdnsd config file:
// Read the pdnsd.conf(5) manpage for an explanation of the options.
/* Note: this file is overriden by automatic config files when
/etc/default/pdnsd AUTO_MODE is set and that
/usr/share/pdnsd/pdnsd-$AUTO_MODE.conf exists
*/
global {
perm_cache = 2048;
cache_dir= "/var/cache/pdnsd";
run_as = "pdnsd";
server_ip= 127.0.0.1;
status_ctl = on;
paranoid = on;
min_ttl = 15m; // Retain cached entries at least 15m.
max_ttl = 1w;
timeout = 10; // Global timeout option (10 seconds).
neg_rrs_pol = on;
par_queries = 1;
}
server {
label="resolvconf";
file="/var/run/resolvconf/interface/eth0.dhclient";
proxy_only=on;
}
source {
owner=localhost;
file="/etc/hosts";
}
rr {
name=localhost;
reverse=on;
a=127.0.0.1;
owner=localhost;
soa=localhost,root.localhost,42,86400,900,86400,86400;
}
/* vim:set ft=c: */
** Affects: pdnsd (Ubuntu)
Importance: Undecided
Status: New
** Tags: pdnsd segfault
** Attachment added: "pdnsd apport crash report"
https://bugs.launchpad.net/bugs/1627270/+attachment/4747609/+files/_usr_sbin_pdnsd.0.crash
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1627270
Title:
Random segfaults on __pthread_create_2_1
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pdnsd/+bug/1627270/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 868658] Re: glade crashes when trying to edit a GtkTreeview
Me too, same problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/868658 Title: glade crashes when trying to edit a GtkTreeview To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glade/+bug/868658/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 879218] Re: Compiz Grid feature under Unity stopped functioning properly
*** This bug is a duplicate of bug 878573 *** https://bugs.launchpad.net/bugs/878573 Hi, If any one have the urgent need for this to work (which I have), you can downgrade the package compiz-plugins-main-default to the version 1:0.9.6-0ubuntu2. I have tried with all the updates, and this is the latest to work. You can found the package here: https://launchpad.net/ubuntu/oneiric/amd64/compiz-plugins-main-default/1:0.9.6-0ubuntu2 and install it with: $ sudo dpkg -i compiz-plugins-main-default_0.9.6-0ubuntu2_amd64.deb Of course, it may break something, but so far, I've have no problems. To ensure that no other Ubuntu update will replace the package again, you can run this: $ echo compiz-plugins-main-default hold | sudo dpkg --set-selections To unhold it when you want to update it again (when the bug gets fixed, for example): $ echo compiz-plugins-main-default install | sudo dpkg --set-selections Said that, is obvious that something between version 0.9.6-0ubuntu2 and 0.9.6-0ubuntu3 broke the Grid plugin. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/879218 Title: Compiz Grid feature under Unity stopped functioning properly To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/879218/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 879218] Re: Compiz Grid feature under Unity stopped functioning properly
*** This bug is a duplicate of bug 878573 *** https://bugs.launchpad.net/bugs/878573 Well, it seems that downgrade really break something: no further system upgrades are possible, because there's dependencies unable to be resolved when you downgrade the package. Take a look: jordi@ubuntu: /home/jordi $ sudo aptitude dist-upgrade The following packages will be upgraded: aisleriot binutils gnome-system-monitor libgssapi-krb5-2 libgssapi-krb5-2 libk5crypto3 libk5crypto3 libkrb5-3 libkrb5-3 libkrb5support0 libkrb5support0 libunity-core-4.0-4 libvlc-dev libvlc5 libvlccore-dev libvlccore4 unity unity-common unity-services vlc vlc-data vlc-nox vlc-plugin-notify vlc-plugin-pulse xserver-common xserver-xorg-core xserver-xorg-dev 27 packages upgraded, 0 newly installed, 0 to remove and 1 not upgraded. Need to get 21.3 MB of archives. After unpacking 20.5 kB will be used. The following packages have unmet dependencies: compiz-plugins-main: Depends: compiz-plugins-main-default (= 1:0.9.6-0ubuntu4) but 1:0.9.6-0ubuntu2 is installed and it is kept back. The following actions will resolve these dependencies: Remove the following packages: 1) appmenu-qt 2) compiz-plugins-main ... 138) vlc 139) zlib1g Leave the following dependencies unresolved: 140) indicator-appmenu recommends appmenu-qt 141) compizconfig-settings-manager recommends compiz-plugins-main 142) ia32-libs recommends ia32-libs-multiarch 143) virtualbox recommends libqt4-opengl (= 4:4.5.3) 144) ubuntu-restricted-addons recommends flashplugin-installer Accept this solution? [Y/n/q/?] So I don't recommend this unless you really know what you are doing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/879218 Title: Compiz Grid feature under Unity stopped functioning properly To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/879218/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 879218] Re: Compiz Grid feature under Unity stopped functioning properly
Hi, Same problem here in two different computers. Not happening few days ago. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/879218 Title: Compiz Grid feature under Unity stopped functioning properly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/879218/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
