[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Changed in: libnss-ldap (Debian) Status: Unknown = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Changed in: libnss-ldap (Debian) Status: Unknown = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
This bug was fixed in the package libnss-ldap - 264-2.2ubuntu4.14.10.1 --- libnss-ldap (264-2.2ubuntu4.14.10.1) utopic; urgency=medium * Handle removal of __libc_lock_lock and similar symbols from libc (LP: #1387594). This fixes a segfault on ppc64el, and also all other architectures in case of a future rebuild. -- Louis Bouchard louis.bouch...@ubuntu.com Wed, 12 Nov 2014 16:29:42 +0100 ** Changed in: libnss-ldap (Ubuntu Utopic) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
This bug was fixed in the package libnss-ldap - 264-2.2ubuntu4.14.04.1 --- libnss-ldap (264-2.2ubuntu4.14.04.1) trusty; urgency=medium * Handle removal of __libc_lock_lock and similar symbols from libc (LP: #1387594). This fixes a segfault on ppc64el, and also all other architectures in case of a future rebuild. -- Louis Bouchard louis.bouch...@ubuntu.com Wed, 12 Nov 2014 16:59:29 +0100 ** Changed in: libnss-ldap (Ubuntu Trusty) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
This bug was fixed in the package libnss-ldap - 264-2.2ubuntu4.14.10.1 --- libnss-ldap (264-2.2ubuntu4.14.10.1) utopic; urgency=medium * Handle removal of __libc_lock_lock and similar symbols from libc (LP: #1387594). This fixes a segfault on ppc64el, and also all other architectures in case of a future rebuild. -- Louis Bouchard louis.bouch...@ubuntu.com Wed, 12 Nov 2014 16:29:42 +0100 ** Changed in: libnss-ldap (Ubuntu Utopic) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
This bug was fixed in the package libnss-ldap - 264-2.2ubuntu4.14.04.1 --- libnss-ldap (264-2.2ubuntu4.14.04.1) trusty; urgency=medium * Handle removal of __libc_lock_lock and similar symbols from libc (LP: #1387594). This fixes a segfault on ppc64el, and also all other architectures in case of a future rebuild. -- Louis Bouchard louis.bouch...@ubuntu.com Wed, 12 Nov 2014 16:59:29 +0100 ** Changed in: libnss-ldap (Ubuntu Trusty) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Also affects: libnss-ldap (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=727177 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Also affects: libnss-ldap (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=727177 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Hi Adam- Is this SRU appropriate to target for the 14.04.2 milestone? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Hi Adam- Is this SRU appropriate to target for the 14.04.2 milestone? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Thanks, the patch libnss-ldap=264-2.2ubuntu4.14.04.1 works for me -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Thanks, the patch libnss-ldap=264-2.2ubuntu4.14.04.1 works for me -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
I ran tests on an IBM 8247-22L using both Utopic and Trusty for ppc64el. Details of the test follow, but the new packages in [utopic,trusty]-proposed fix the segfault issue. For Utopic root@crest2:~# lsb_release -rc Release:14.10 Codename: utopic # Current working version using a vivid package root@crest2:~# dpkg -l libnss-ldap|grep ii ii libnss-ldap:ppc64el 265-3ubuntu2 ppc64el NSS module for using LDAP as a naming service root@crest2:~# getent passwd|wc -l ; getent group|wc -l 52 16849 # Test current release root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4 ... root@crest2:~# getent passwd root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin ... other local users ... Segmentation fault root@crest2:~# getent group root:x:0: daemon:x:1: ... other local groups ... Segmentation fault # Try new version root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4.14.10.1 ... root@crest2:~# getent passwd|wc -l ; getent group|wc -l 52 16849 # Success! For Trusty root@crest2:~# lsb_release -rcd Description:Ubuntu 14.04.1 LTS Release:14.04 Codename: trusty # Test current release root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4 ... root@crest2:~# getent passwd root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin ... other local users ... Segmentation fault root@crest2:~# getent group root:x:0: daemon:x:1: ... other local groups ... Segmentation fault # Try new version root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4.14.04.1 ... root@crest2:~# getent passwd|wc -l ; getent group|wc -l 52 16849 # Success! ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
I ran tests on an IBM 8247-22L using both Utopic and Trusty for ppc64el. Details of the test follow, but the new packages in [utopic,trusty]-proposed fix the segfault issue. For Utopic root@crest2:~# lsb_release -rc Release:14.10 Codename: utopic # Current working version using a vivid package root@crest2:~# dpkg -l libnss-ldap|grep ii ii libnss-ldap:ppc64el 265-3ubuntu2 ppc64el NSS module for using LDAP as a naming service root@crest2:~# getent passwd|wc -l ; getent group|wc -l 52 16849 # Test current release root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4 ... root@crest2:~# getent passwd root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin ... other local users ... Segmentation fault root@crest2:~# getent group root:x:0: daemon:x:1: ... other local groups ... Segmentation fault # Try new version root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4.14.10.1 ... root@crest2:~# getent passwd|wc -l ; getent group|wc -l 52 16849 # Success! For Trusty root@crest2:~# lsb_release -rcd Description:Ubuntu 14.04.1 LTS Release:14.04 Codename: trusty # Test current release root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4 ... root@crest2:~# getent passwd root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin ... other local users ... Segmentation fault root@crest2:~# getent group root:x:0: daemon:x:1: ... other local groups ... Segmentation fault # Try new version root@crest2:~# apt-get install libnss-ldap=264-2.2ubuntu4.14.04.1 ... root@crest2:~# getent passwd|wc -l ; getent group|wc -l 52 16849 # Success! ** 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/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Anything I can do to help this SRU along? This is affecting our Trusty and Utopic boxes. Right now, I've manually pulled in a Vivid package so I actually have working systems. It would be nice to get this into the *-updates repos. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
looks like I forgot to attach the trusty debdiff ** Patch added: lp1387594_glibc_trusty.debdiff https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+attachment/4299974/+files/lp1387594_glibc_trusty.debdiff -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Description changed: [SRU justification] The version of the library in the archive for Utopic and Trusty has been built prior to a change in glibc that removes an expected symbol. Rebuild of the libnss-ldap library with the current source package will render the library unusable and may cause systems to become unbootable. [Impact] Without this fix, a rebuild of the libnss-ldap package will cause grave impact where usage of the libnss-ldap will segfault. Such a segfault during the boot process will cause the system to become unbootable. [Fix] Backport the glibc-2.16.patch that is now merged in Vivid into Utopic and Trusty. The version of the library in Precise already uses the correct glibc symbol. [Test Case] On a server properly configured for ldap authentication : root@trusty-ldapclient:~# getent passwd john john:x:1:5000:John Doe:/home/john:/bin/bash The same test on arm64 or ppc64el platform where the libnss-ldap have been rebuilt recently you will get : root@trusty-ldapclient:~# getent passwd john Segmentation fault (core dumped) $ sudo apt-get download libnss-ldap $ mkdir tmp $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.15.so |grep lock$ w __pthread_mutex_lock w __pthread_mutex_unlock #Rebuild the library $ pull-lp-source libnss-ldap trusty $ sbuild -A -d trusty libnss-ldap_264-2.2ubuntu4.dsc $ rm -Rf tmp/* $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.19.so | grep lock$ U __libc_lock_lock U __libc_lock_unlock Notice that the libnss-ldap version change (2.15 - 2.19). With the newly built version, the expected _pthread_mutex_lock|unlock is no longer present. [Regression] None expected. This is already present and in use in the upstream version of the library. + 15:27 rbasak caribou: so what I don't like about this is that the + patch seems a bit invasive in an area where if there's a regression, + it'll be in multithreading code that'll be non-deterministic and thus + difficult to test. + + 15:27 rbasak caribou: OTOH, it's broken on ppc64el at the moment? That + means we need to fix it. + + 15:28 rbasak Having an active upstream that had committed the code + would give me more confidence that the patch is good (since they're more + familiar with the code and will have reviewed it) + + 15:29 rbasak But Debian have committed it, so that's better than + nothing. + + 15:31 rbasak caribou: I think we have no choice but to push it to + Trusty (and Utopic), but we should let the SRU team decide at that + stage. IMHO, my concern should be noted in Regression Potential, so + I'll do that now. + [Original Description of the problem] Unlike previously thought, this bug is _NOT_ specific to the PPC64EL architecture. More details in the analysis. Many commands that require the use of libnss-ldap will fail with Segmentation Fault. The boot procedure itself can be blocked with the following message. One potential workaround is to remove the use of ldap from the /etc/nsswitch.conf file to at least provide a bootable system. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Uploaded to Trusty and Utopic with minor changes as discussed with Louis on IRC. Note that I've looked at the patches, but they're too in depth for me to follow really. Superficially they look fine, and Debian have also included them so they're in Vivid, and so I think this is sufficient provided we do the usual SRU testing. Note my thoughts about regression potential in the bug description, though. Thanks Louis! -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Hello Louis, or anyone else affected, Accepted libnss-ldap into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/libnss- ldap/264-2.2ubuntu4.14.04.1 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance! ** Changed in: libnss-ldap (Ubuntu Trusty) Status: In Progress = Fix Committed ** Tags added: verification-needed ** Changed in: libnss-ldap (Ubuntu Utopic) Status: In Progress = Fix Committed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Branch linked: lp:ubuntu/trusty-proposed/libnss-ldap ** Branch linked: lp:~ubuntu-branches/ubuntu/utopic/libnss-ldap/utopic- proposed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Anything I can do to help this SRU along? This is affecting our Trusty and Utopic boxes. Right now, I've manually pulled in a Vivid package so I actually have working systems. It would be nice to get this into the *-updates repos. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
looks like I forgot to attach the trusty debdiff ** Patch added: lp1387594_glibc_trusty.debdiff https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+attachment/4299974/+files/lp1387594_glibc_trusty.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Description changed: [SRU justification] The version of the library in the archive for Utopic and Trusty has been built prior to a change in glibc that removes an expected symbol. Rebuild of the libnss-ldap library with the current source package will render the library unusable and may cause systems to become unbootable. [Impact] Without this fix, a rebuild of the libnss-ldap package will cause grave impact where usage of the libnss-ldap will segfault. Such a segfault during the boot process will cause the system to become unbootable. [Fix] Backport the glibc-2.16.patch that is now merged in Vivid into Utopic and Trusty. The version of the library in Precise already uses the correct glibc symbol. [Test Case] On a server properly configured for ldap authentication : root@trusty-ldapclient:~# getent passwd john john:x:1:5000:John Doe:/home/john:/bin/bash The same test on arm64 or ppc64el platform where the libnss-ldap have been rebuilt recently you will get : root@trusty-ldapclient:~# getent passwd john Segmentation fault (core dumped) $ sudo apt-get download libnss-ldap $ mkdir tmp $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.15.so |grep lock$ w __pthread_mutex_lock w __pthread_mutex_unlock #Rebuild the library $ pull-lp-source libnss-ldap trusty $ sbuild -A -d trusty libnss-ldap_264-2.2ubuntu4.dsc $ rm -Rf tmp/* $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.19.so | grep lock$ U __libc_lock_lock U __libc_lock_unlock Notice that the libnss-ldap version change (2.15 - 2.19). With the newly built version, the expected _pthread_mutex_lock|unlock is no longer present. [Regression] None expected. This is already present and in use in the upstream version of the library. + 15:27 rbasak caribou: so what I don't like about this is that the + patch seems a bit invasive in an area where if there's a regression, + it'll be in multithreading code that'll be non-deterministic and thus + difficult to test. + + 15:27 rbasak caribou: OTOH, it's broken on ppc64el at the moment? That + means we need to fix it. + + 15:28 rbasak Having an active upstream that had committed the code + would give me more confidence that the patch is good (since they're more + familiar with the code and will have reviewed it) + + 15:29 rbasak But Debian have committed it, so that's better than + nothing. + + 15:31 rbasak caribou: I think we have no choice but to push it to + Trusty (and Utopic), but we should let the SRU team decide at that + stage. IMHO, my concern should be noted in Regression Potential, so + I'll do that now. + [Original Description of the problem] Unlike previously thought, this bug is _NOT_ specific to the PPC64EL architecture. More details in the analysis. Many commands that require the use of libnss-ldap will fail with Segmentation Fault. The boot procedure itself can be blocked with the following message. One potential workaround is to remove the use of ldap from the /etc/nsswitch.conf file to at least provide a bootable system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Uploaded to Trusty and Utopic with minor changes as discussed with Louis on IRC. Note that I've looked at the patches, but they're too in depth for me to follow really. Superficially they look fine, and Debian have also included them so they're in Vivid, and so I think this is sufficient provided we do the usual SRU testing. Note my thoughts about regression potential in the bug description, though. Thanks Louis! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Hello Louis, or anyone else affected, Accepted libnss-ldap into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/libnss- ldap/264-2.2ubuntu4.14.04.1 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance! ** Changed in: libnss-ldap (Ubuntu Trusty) Status: In Progress = Fix Committed ** Tags added: verification-needed ** Changed in: libnss-ldap (Ubuntu Utopic) Status: In Progress = Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Branch linked: lp:ubuntu/trusty-proposed/libnss-ldap ** Branch linked: lp:~ubuntu-branches/ubuntu/utopic/libnss-ldap/utopic- proposed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
The version in Precise is unaffected. Marking the task invalid ** Changed in: libnss-ldap (Ubuntu Precise) Status: New = Invalid ** Changed in: libnss-ldap (Ubuntu Trusty) Status: Confirmed = In Progress ** Changed in: libnss-ldap (Ubuntu Utopic) Status: Confirmed = In Progress ** Changed in: libnss-ldap (Ubuntu) Assignee: Louis Bouchard (louis-bouchard) = (unassigned) ** Tags added: cts -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
debdiff for the SRU on Trusty ** Description changed: - This bug is specific to the PPC64EL architecture. More details in the - analysis. + [SRU justification] + The version of the library in the archive for Utopic and Trusty has been built prior to a change in glibc that removes an expected symbol. Rebuild of the libnss-ldap library with the current source package will render the library unusable and may cause systems to become unbootable. + + [Impact] + Without this fix, a rebuild of the libnss-ldap package will cause grave impact where usage of the libnss-ldap will segfault. Such a segfault during the boot process will cause the system to become unbootable. + + [Fix] + Backport the glibc-2.16.patch that is now merged in Vivid into Utopic and Trusty. The version of the library in Precise already uses the correct glibc symbol. + + [Test Case] + $ sudo apt-get download libnss-ldap + $ mkdir tmp + $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp + $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.15.so |grep lock$ + w __pthread_mutex_lock + w __pthread_mutex_unlock + #Rebuild the library + $ pull-lp-source libnss-ldap trusty + $ sbuild -A -d trusty libnss-ldap_264-2.2ubuntu4.dsc + $ rm -Rf tmp/* + $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp + $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.19.so | grep lock$ + U __libc_lock_lock + U __libc_lock_unlock + + Notice that the libnss-ldap version change (2.15 - 2.19). With the + newly built version, the expected _pthread_mutex_lock|unlock is no + longer present. + + [Regression] + None expected. This is already present and in use in the upstream version of the library. + + [Original Description of the problem] + + Unlike previously thought, this bug is _NOT_ specific to the PPC64EL + architecture. More details in the analysis. Many commands that require the use of libnss-ldap will fail with Segmentation Fault. The boot procedure itself can be blocked with the following message. One potential workaround is to remove the use of ldap from the /etc/nsswitch.conf file to at least provide a bootable system. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
debdiff for SRU on Utopic ** Patch added: lp1387594_glibc_utopic.debdiff https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+attachment/4276986/+files/lp1387594_glibc_utopic.debdiff ** Changed in: libnss-ldap (Ubuntu Precise) Assignee: Louis Bouchard (louis-bouchard) = (unassigned) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Description changed: [SRU justification] The version of the library in the archive for Utopic and Trusty has been built prior to a change in glibc that removes an expected symbol. Rebuild of the libnss-ldap library with the current source package will render the library unusable and may cause systems to become unbootable. [Impact] Without this fix, a rebuild of the libnss-ldap package will cause grave impact where usage of the libnss-ldap will segfault. Such a segfault during the boot process will cause the system to become unbootable. [Fix] Backport the glibc-2.16.patch that is now merged in Vivid into Utopic and Trusty. The version of the library in Precise already uses the correct glibc symbol. [Test Case] + On a server properly configured for ldap authentication : + + root@trusty-ldapclient:~# getent passwd john + john:x:1:5000:John Doe:/home/john:/bin/bash + + The same test on arm64 or ppc64el platform where the libnss-ldap have + been rebuilt recently you will get : + + root@trusty-ldapclient:~# getent passwd john + Segmentation fault (core dumped) + $ sudo apt-get download libnss-ldap $ mkdir tmp $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.15.so |grep lock$ - w __pthread_mutex_lock - w __pthread_mutex_unlock + w __pthread_mutex_lock + w __pthread_mutex_unlock #Rebuild the library $ pull-lp-source libnss-ldap trusty $ sbuild -A -d trusty libnss-ldap_264-2.2ubuntu4.dsc $ rm -Rf tmp/* $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.19.so | grep lock$ - U __libc_lock_lock - U __libc_lock_unlock + U __libc_lock_lock + U __libc_lock_unlock Notice that the libnss-ldap version change (2.15 - 2.19). With the newly built version, the expected _pthread_mutex_lock|unlock is no longer present. [Regression] None expected. This is already present and in use in the upstream version of the library. [Original Description of the problem] Unlike previously thought, this bug is _NOT_ specific to the PPC64EL architecture. More details in the analysis. Many commands that require the use of libnss-ldap will fail with Segmentation Fault. The boot procedure itself can be blocked with the following message. One potential workaround is to remove the use of ldap from the /etc/nsswitch.conf file to at least provide a bootable system. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
The version in Precise is unaffected. Marking the task invalid ** Changed in: libnss-ldap (Ubuntu Precise) Status: New = Invalid ** Changed in: libnss-ldap (Ubuntu Trusty) Status: Confirmed = In Progress ** Changed in: libnss-ldap (Ubuntu Utopic) Status: Confirmed = In Progress ** Changed in: libnss-ldap (Ubuntu) Assignee: Louis Bouchard (louis-bouchard) = (unassigned) ** Tags added: cts -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
debdiff for the SRU on Trusty ** Description changed: - This bug is specific to the PPC64EL architecture. More details in the - analysis. + [SRU justification] + The version of the library in the archive for Utopic and Trusty has been built prior to a change in glibc that removes an expected symbol. Rebuild of the libnss-ldap library with the current source package will render the library unusable and may cause systems to become unbootable. + + [Impact] + Without this fix, a rebuild of the libnss-ldap package will cause grave impact where usage of the libnss-ldap will segfault. Such a segfault during the boot process will cause the system to become unbootable. + + [Fix] + Backport the glibc-2.16.patch that is now merged in Vivid into Utopic and Trusty. The version of the library in Precise already uses the correct glibc symbol. + + [Test Case] + $ sudo apt-get download libnss-ldap + $ mkdir tmp + $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp + $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.15.so |grep lock$ + w __pthread_mutex_lock + w __pthread_mutex_unlock + #Rebuild the library + $ pull-lp-source libnss-ldap trusty + $ sbuild -A -d trusty libnss-ldap_264-2.2ubuntu4.dsc + $ rm -Rf tmp/* + $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp + $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.19.so | grep lock$ + U __libc_lock_lock + U __libc_lock_unlock + + Notice that the libnss-ldap version change (2.15 - 2.19). With the + newly built version, the expected _pthread_mutex_lock|unlock is no + longer present. + + [Regression] + None expected. This is already present and in use in the upstream version of the library. + + [Original Description of the problem] + + Unlike previously thought, this bug is _NOT_ specific to the PPC64EL + architecture. More details in the analysis. Many commands that require the use of libnss-ldap will fail with Segmentation Fault. The boot procedure itself can be blocked with the following message. One potential workaround is to remove the use of ldap from the /etc/nsswitch.conf file to at least provide a bootable system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
debdiff for SRU on Utopic ** Patch added: lp1387594_glibc_utopic.debdiff https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+attachment/4276986/+files/lp1387594_glibc_utopic.debdiff ** Changed in: libnss-ldap (Ubuntu Precise) Assignee: Louis Bouchard (louis-bouchard) = (unassigned) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Description changed: [SRU justification] The version of the library in the archive for Utopic and Trusty has been built prior to a change in glibc that removes an expected symbol. Rebuild of the libnss-ldap library with the current source package will render the library unusable and may cause systems to become unbootable. [Impact] Without this fix, a rebuild of the libnss-ldap package will cause grave impact where usage of the libnss-ldap will segfault. Such a segfault during the boot process will cause the system to become unbootable. [Fix] Backport the glibc-2.16.patch that is now merged in Vivid into Utopic and Trusty. The version of the library in Precise already uses the correct glibc symbol. [Test Case] + On a server properly configured for ldap authentication : + + root@trusty-ldapclient:~# getent passwd john + john:x:1:5000:John Doe:/home/john:/bin/bash + + The same test on arm64 or ppc64el platform where the libnss-ldap have + been rebuilt recently you will get : + + root@trusty-ldapclient:~# getent passwd john + Segmentation fault (core dumped) + $ sudo apt-get download libnss-ldap $ mkdir tmp $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.15.so |grep lock$ - w __pthread_mutex_lock - w __pthread_mutex_unlock + w __pthread_mutex_lock + w __pthread_mutex_unlock #Rebuild the library $ pull-lp-source libnss-ldap trusty $ sbuild -A -d trusty libnss-ldap_264-2.2ubuntu4.dsc $ rm -Rf tmp/* $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb tmp $ nm -D tmp/lib/x86_64-linux-gnu/libnss_ldap-2.19.so | grep lock$ - U __libc_lock_lock - U __libc_lock_unlock + U __libc_lock_lock + U __libc_lock_unlock Notice that the libnss-ldap version change (2.15 - 2.19). With the newly built version, the expected _pthread_mutex_lock|unlock is no longer present. [Regression] None expected. This is already present and in use in the upstream version of the library. [Original Description of the problem] Unlike previously thought, this bug is _NOT_ specific to the PPC64EL architecture. More details in the analysis. Many commands that require the use of libnss-ldap will fail with Segmentation Fault. The boot procedure itself can be blocked with the following message. One potential workaround is to remove the use of ldap from the /etc/nsswitch.conf file to at least provide a bootable system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Branch linked: lp:ubuntu/vivid-proposed/libnss-ldap -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
This bug was fixed in the package libnss-ldap - 265-3ubuntu2 --- libnss-ldap (265-3ubuntu2) vivid; urgency=low * Changelog entry enhanced from previous version with more details. * debian/changelog : removed po-debconf from Build-depends * Merge from Debian unstable. Remaining changes: (LP: #1389152) + debian/control: update Maintainer field - Removed cdbs, quilt, patchutils as the build now uses dh-autoreconf - Kept po-debconf out of Build-depends - Move nscd to Suggests + removed the following files: - debian/config - debian/libnss-ldap.postinst - debian/libnss-ldap.postrm - debian/po - debian/templates + modified the following files: - debian/libnss-ldap.dirs - Adapted to new build structure - debian/libnss-ldap.install - Adapted to new build structure + debian/LDAP-Permissions.txt: use /etc/ldap.conf + debian/README.Debian: use /etc/ldap.conf + debian/rules: don't use --with-ldap-conf-file and --with-ldap-secret-file + debian/libnss-ldap.install: removed usr/share/libnss-ldap/ldap.conf + debian/libnss-ldap.dirs: removed usr/share/libnss-ldap + debian/patches : - authpriv_log_c authpriv_log_h merged into log_authpriv.patch - autoreconf.patch dropped as dh-autoreconf is used now - debian_conf is now conf_notes.patch - fix-ethers-truncation.patch is dropped since fixed upstream - fix-glibc-test-for-armel-gnueabi.patch replaced by treat-all-debian-systems-like-linux.patch - glibc-2.16.patch Handle removal of __libc_lock_lock and similar symbols from libc (LP: #1387594) * Remaining changes from debian unstable for LP: #155947 + added debian/nssldap-update-ignoreusers which update nss_initgroups_ignoreusers in /etc/ldap.conf based on nss_initgroups_minimum_uid + add manpage for nssldap-update-ignoreusers + debian/libnss-ldap.install: added usr/sbin/nssldap-update-ignoreusers and usr/share/man/man8/nssldap-update-ignoreusers.8 + added debian/libnss-ldap.init to call nssldap-update-ignoreusers on shutdown + debian/rules: install initscript + debian/libnss-ldap.dirs: added var/lib/libnss-ldap + debian/patches/minimum_uid.patch: update ldap.conf and manpage for nss_initgroups_ignoreusers and nss_initgroups_minimum_uid updates; -- Louis Bouchard louis.bouch...@ubuntu.com Mon, 03 Nov 2014 17:03:35 +0100 ** Changed in: libnss-ldap (Ubuntu) Status: In Progress = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Branch linked: lp:ubuntu/libnss-ldap -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Branch linked: lp:ubuntu/vivid-proposed/libnss-ldap -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
This bug was fixed in the package libnss-ldap - 265-3ubuntu2 --- libnss-ldap (265-3ubuntu2) vivid; urgency=low * Changelog entry enhanced from previous version with more details. * debian/changelog : removed po-debconf from Build-depends * Merge from Debian unstable. Remaining changes: (LP: #1389152) + debian/control: update Maintainer field - Removed cdbs, quilt, patchutils as the build now uses dh-autoreconf - Kept po-debconf out of Build-depends - Move nscd to Suggests + removed the following files: - debian/config - debian/libnss-ldap.postinst - debian/libnss-ldap.postrm - debian/po - debian/templates + modified the following files: - debian/libnss-ldap.dirs - Adapted to new build structure - debian/libnss-ldap.install - Adapted to new build structure + debian/LDAP-Permissions.txt: use /etc/ldap.conf + debian/README.Debian: use /etc/ldap.conf + debian/rules: don't use --with-ldap-conf-file and --with-ldap-secret-file + debian/libnss-ldap.install: removed usr/share/libnss-ldap/ldap.conf + debian/libnss-ldap.dirs: removed usr/share/libnss-ldap + debian/patches : - authpriv_log_c authpriv_log_h merged into log_authpriv.patch - autoreconf.patch dropped as dh-autoreconf is used now - debian_conf is now conf_notes.patch - fix-ethers-truncation.patch is dropped since fixed upstream - fix-glibc-test-for-armel-gnueabi.patch replaced by treat-all-debian-systems-like-linux.patch - glibc-2.16.patch Handle removal of __libc_lock_lock and similar symbols from libc (LP: #1387594) * Remaining changes from debian unstable for LP: #155947 + added debian/nssldap-update-ignoreusers which update nss_initgroups_ignoreusers in /etc/ldap.conf based on nss_initgroups_minimum_uid + add manpage for nssldap-update-ignoreusers + debian/libnss-ldap.install: added usr/sbin/nssldap-update-ignoreusers and usr/share/man/man8/nssldap-update-ignoreusers.8 + added debian/libnss-ldap.init to call nssldap-update-ignoreusers on shutdown + debian/rules: install initscript + debian/libnss-ldap.dirs: added var/lib/libnss-ldap + debian/patches/minimum_uid.patch: update ldap.conf and manpage for nss_initgroups_ignoreusers and nss_initgroups_minimum_uid updates; -- Louis Bouchard louis.bouch...@ubuntu.com Mon, 03 Nov 2014 17:03:35 +0100 ** Changed in: libnss-ldap (Ubuntu) Status: In Progress = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Branch linked: lp:ubuntu/libnss-ldap -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Changed in: libnss-ldap (Ubuntu) Status: Confirmed = In Progress -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Changed in: libnss-ldap (Ubuntu) Status: Confirmed = In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Analysis
Upon boot of a ppc64el system configured to authenticate as an LDAP
client, the boot process is interrupted with :
/sbin/init: symbol lookup error: /lib/powerpc64le-linux-
gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Apparently __libc_lock_lock is missing from the libnss_ldap.so library.
Looking at the symbols exported by the library on PPC64el we see :
- For libnss_ldap :
$ nm -D /lib/powerpc64le-linux-gnu/libnss_ldap.so.2 | grep _lock
U __libc_lock_lock
U __libc_lock_unlock
• For libc :
$ nm -D /lib/powerpc64le-linux-gnu/libc-2.19.so | grep _lock
0008f4a0 T _IO_list_lock
00088a70 T _IO_peekc_locked
001313b0 T pthread_mutex_lock
The same command on AMD64 returns :
- For libnss_ldap:
# nm -D /lib/x86_64-linux-gnu/libnss_ldap.so.2 | grep lock
w __pthread_mutex_lock
w __pthread_mutex_unlock
• For libc :
# nm -D /lib/x86_64-linux-gnu/libc-2.19.so | grep _lock
...
00108270 T pthread_mutex_lock
So the symbol is _not_ exported by the libc on ppc64el even though
libnss_ldap is expecting to find it.
This lock is only used once in libnss_ldap :
static int
ltf_mutex_lock (void *mutexp)
{
#if defined(HAVE_LIBC_LOCK_H) || defined(HAVE_BITS_LIBC_LOCK_H)
return __libc_lock_lock (*(pthread_mutex_t *) mutexp);
#elif defined(HPUX)
return __thread_mutex_lock ((pthread_mutex_t *) mutexp);
#else
# ifdef _AIX
if (__multi_threaded == 0)
return 0;
# endif
return pthread_mutex_lock ((pthread_mutex_t *) mutexp);
#endif /* HAVE_LIBC_LOCK_H || HAVE_BITS_LIBC_LOCK_H */
}
So apparently, the HAVE_LIBC_LOCK_H symbol is defined on ppc64el, or at least
appear to be even if the libc does not export that libc_lock_lock symbol.
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to libnss-ldap in Ubuntu.
https://bugs.launchpad.net/bugs/1387594
Title:
init: symbol lookup error: /lib/powerpc64le-linux-
gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
To manage notifications about this bug go to:
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[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Changed in: libnss-ldap (Ubuntu) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) ** Changed in: libnss-ldap (Ubuntu Utopic) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Ok, here are some more puzzling things : The libnss-ldap from the archive does not use __libc_lock_lock : $ pwd ./archive $ wget http://fr.archive.ubuntu.com/ubuntu/pool/main/libn/libnss-ldap/libnss-ldap_264-2.2ubuntu4_amd64.deb --2014-10-30 16:20:59-- http://fr.archive.ubuntu.com/ubuntu/pool/main/libn/libnss-ldap/libnss-ldap_264-2.2ubuntu4_amd64.deb ... 2014-10-30 16:21:01 (72,7 KB/s) - «libnss-ldap_264-2.2ubuntu4_amd64.deb» enregistré [64718/64718] $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb . $ nm -D lib/x86_64-linux-gnu/libnss_ldap.so.2 | grep _lock w __pthread_mutex_lock The same source build in a PPA DOES have the symbol __libc_lock_lock : $ cd ../ppa $ pwd ./ppa $ wget https://launchpad.net/~louis-bouchard/+archive/ubuntu/nssldap-buildtest/+files/libnss-ldap_264-2.2ubuntu4_amd64.deb ... 2014-10-30 16:23:56 (56,7 KB/s) - «libnss-ldap_264-2.2ubuntu4_amd64.deb» enregistré [83234/83234] $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb . $ nm -D lib/x86_64-linux-gnu/libnss_ldap.so.2 | grep _lock U __libc_lock_lock U __libc_lock_unlock I see the same behavior (i.e. fresh build created with __libc_lock_lock in use) when using sbuild or building manually using debian/rules This needs more investigation -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
After a discussion with slangasek, the only reason why it no longer builds locally is that the uploads in the archives have not been rebuilt since 2012 which explains why the new build on ppc64el fails : it is the only fresh rebuild. ** Changed in: libnss-ldap (Ubuntu Trusty) Status: New = Confirmed ** Also affects: libnss-ldap (Ubuntu Precise) Importance: Undecided Status: New ** Changed in: libnss-ldap (Ubuntu Precise) Importance: Undecided = Critical ** Changed in: libnss-ldap (Ubuntu Trusty) Importance: Undecided = Critical ** Changed in: libnss-ldap (Ubuntu Precise) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) ** Changed in: libnss-ldap (Ubuntu Trusty) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
More research have highlighted what seems like a potential solution : * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=727177 Upgrade of libnss-ldap to 265-1 causes important binaries to segfault The debian bug description is in line with what is described above. The version 265-3 should be merged into Vivid, then the specific patch for this problem will be SRUed into the impacted releases. ** Bug watch added: Debian Bug tracker #727177 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=727177 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libnss-ldap in Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Analysis
Upon boot of a ppc64el system configured to authenticate as an LDAP
client, the boot process is interrupted with :
/sbin/init: symbol lookup error: /lib/powerpc64le-linux-
gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Apparently __libc_lock_lock is missing from the libnss_ldap.so library.
Looking at the symbols exported by the library on PPC64el we see :
- For libnss_ldap :
$ nm -D /lib/powerpc64le-linux-gnu/libnss_ldap.so.2 | grep _lock
U __libc_lock_lock
U __libc_lock_unlock
• For libc :
$ nm -D /lib/powerpc64le-linux-gnu/libc-2.19.so | grep _lock
0008f4a0 T _IO_list_lock
00088a70 T _IO_peekc_locked
001313b0 T pthread_mutex_lock
The same command on AMD64 returns :
- For libnss_ldap:
# nm -D /lib/x86_64-linux-gnu/libnss_ldap.so.2 | grep lock
w __pthread_mutex_lock
w __pthread_mutex_unlock
• For libc :
# nm -D /lib/x86_64-linux-gnu/libc-2.19.so | grep _lock
...
00108270 T pthread_mutex_lock
So the symbol is _not_ exported by the libc on ppc64el even though
libnss_ldap is expecting to find it.
This lock is only used once in libnss_ldap :
static int
ltf_mutex_lock (void *mutexp)
{
#if defined(HAVE_LIBC_LOCK_H) || defined(HAVE_BITS_LIBC_LOCK_H)
return __libc_lock_lock (*(pthread_mutex_t *) mutexp);
#elif defined(HPUX)
return __thread_mutex_lock ((pthread_mutex_t *) mutexp);
#else
# ifdef _AIX
if (__multi_threaded == 0)
return 0;
# endif
return pthread_mutex_lock ((pthread_mutex_t *) mutexp);
#endif /* HAVE_LIBC_LOCK_H || HAVE_BITS_LIBC_LOCK_H */
}
So apparently, the HAVE_LIBC_LOCK_H symbol is defined on ppc64el, or at least
appear to be even if the libc does not export that libc_lock_lock symbol.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1387594
Title:
init: symbol lookup error: /lib/powerpc64le-linux-
gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions
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[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
** Changed in: libnss-ldap (Ubuntu) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) ** Changed in: libnss-ldap (Ubuntu Utopic) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
Ok, here are some more puzzling things : The libnss-ldap from the archive does not use __libc_lock_lock : $ pwd ./archive $ wget http://fr.archive.ubuntu.com/ubuntu/pool/main/libn/libnss-ldap/libnss-ldap_264-2.2ubuntu4_amd64.deb --2014-10-30 16:20:59-- http://fr.archive.ubuntu.com/ubuntu/pool/main/libn/libnss-ldap/libnss-ldap_264-2.2ubuntu4_amd64.deb ... 2014-10-30 16:21:01 (72,7 KB/s) - «libnss-ldap_264-2.2ubuntu4_amd64.deb» enregistré [64718/64718] $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb . $ nm -D lib/x86_64-linux-gnu/libnss_ldap.so.2 | grep _lock w __pthread_mutex_lock The same source build in a PPA DOES have the symbol __libc_lock_lock : $ cd ../ppa $ pwd ./ppa $ wget https://launchpad.net/~louis-bouchard/+archive/ubuntu/nssldap-buildtest/+files/libnss-ldap_264-2.2ubuntu4_amd64.deb ... 2014-10-30 16:23:56 (56,7 KB/s) - «libnss-ldap_264-2.2ubuntu4_amd64.deb» enregistré [83234/83234] $ dpkg -x libnss-ldap_264-2.2ubuntu4_amd64.deb . $ nm -D lib/x86_64-linux-gnu/libnss_ldap.so.2 | grep _lock U __libc_lock_lock U __libc_lock_unlock I see the same behavior (i.e. fresh build created with __libc_lock_lock in use) when using sbuild or building manually using debian/rules This needs more investigation -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
After a discussion with slangasek, the only reason why it no longer builds locally is that the uploads in the archives have not been rebuilt since 2012 which explains why the new build on ppc64el fails : it is the only fresh rebuild. ** Changed in: libnss-ldap (Ubuntu Trusty) Status: New = Confirmed ** Also affects: libnss-ldap (Ubuntu Precise) Importance: Undecided Status: New ** Changed in: libnss-ldap (Ubuntu Precise) Importance: Undecided = Critical ** Changed in: libnss-ldap (Ubuntu Trusty) Importance: Undecided = Critical ** Changed in: libnss-ldap (Ubuntu Precise) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) ** Changed in: libnss-ldap (Ubuntu Trusty) Assignee: (unassigned) = Louis Bouchard (louis-bouchard) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1387594] Re: init: symbol lookup error: /lib/powerpc64le-linux-gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock
More research have highlighted what seems like a potential solution : * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=727177 Upgrade of libnss-ldap to 265-1 causes important binaries to segfault The debian bug description is in line with what is described above. The version 265-3 should be merged into Vivid, then the specific patch for this problem will be SRUed into the impacted releases. ** Bug watch added: Debian Bug tracker #727177 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=727177 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1387594 Title: init: symbol lookup error: /lib/powerpc64le-linux- gnu/libnss_ldap.so.2: undefined symbol: __libc_lock_lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnss-ldap/+bug/1387594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
