[Bug 302724] Re: nscd crashes
*** This bug is a duplicate of bug 256157 *** https://bugs.launchpad.net/bugs/256157 ** This bug has been marked a duplicate of bug 256157 nscd crashed with SIGSEGV in start_thread() -- nscd crashes https://bugs.launchpad.net/bugs/302724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 302724] Re: nscd crashes
As a workaround I switched to unscd (http://busybox.net/~vda/unscd/), which is not as feature rich as the standard nscd and is also somewhat slower (at least at my setup) but is very stable so far. -- nscd crashes https://bugs.launchpad.net/bugs/302724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 302724] Re: nscd crashes
nscd crashes on my hosts also. lsb_release -rd: Description:Ubuntu 8.10 Release:8.10 apt-cache policy nscd: nscd: Installed: 2.8~20080505-0ubuntu7 apt-cache policy libnss-ldap libnss-ldap: Installed: 260-1ubuntu2 I'm running nscd in a ldap environment. After some time (may be hours) it stops working. The last entries in the file nscd.log include: 31387: remove GETGRBYGID entry 0 31387: remove GETGRBYNAME entry root 19614: remove INITGROUPS entry root 13527: remove GETPWBYNAME entry username 13527: remove GETPWBYUID entry 410 5466: remove INITGROUPS entry username username is a actually logged in user. Running nscd -d ends with: nscd: mem.c:417: gc: Assertion `off_alloc == off_allocend' failed. or (one time) with: nscd: mem.c:275: gc: Assertion `off_free = db-head-first_free' failed. Regards. Petra Humann -- nscd crashes https://bugs.launchpad.net/bugs/302724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 302724] Re: nscd crashes
Any updates on this issue?! I am also affected, using nscd to cache ldap passwd/group information on an ltsp in production, without nscd passwd/group lookups take a serious amount of time. My temporary solution is to enable paranoia mode and set restart interval to 600 seconds in /etc/nscd.conf. That seems to work for me at the moment but is not the perfect solution. -- nscd crashes https://bugs.launchpad.net/bugs/302724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 302724] Re: nscd crashes
I can confirm this happens to me as well. right now I just have a cron job that restarts nscd every half hour. I have tried playing with nsswitch settings as well as nscd.conf. Been trying to figure this out for a while. Let me know if any other info could be useful The log output: 31636: handle_request: request received (Version = 2) from PID 652 31636: GETHOSTBYNAME (ns1.pchdns.com) 31636: Reloading teddy in group cache! 31636: remove INITGROUPS entry root nscd: mem.c:417: gc: Assertion `off_alloc == off_allocend' failed. Aborted # grep '^[^#]' /etc/ldap.conf base dc=XX,dc=com uri ldaps://ldap1.XX.com:636/ ldaps://ldap2.XX.com:636/ ldap_version 3 rootbinddn cn=admin,dc=XX,dc=com bind_policy soft pam_groupdn cn=XXX,ou=Group,dc=XX,dc=com pam_member_attribute memberUid pam_password md5 tls_checkpeer no nss_reconnect_tries 1 nss_reconnect_sleeptime 1 nss_reconnect_maxsleeptime 8 nss_reconnect_maxconntries 2 -- nscd crashes https://bugs.launchpad.net/bugs/302724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 302724] Re: nscd crashes
Just adding confirmation of this bug. [EMAIL PROTECTED]:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:Ubuntu 8.10 Release:8.10 Codename: intrepid [EMAIL PROTECTED]:~$ uname -a Linux ganymede 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:06 UTC 2008 x86_64 GNU/Linux Ran nscd -d ... lasted for about 15 minutes then crashed: ... 3767: provide access to FD 6, for group 3767: Reloading 0 in password cache! 3767: Reloading mjmac in password cache! 3767: Reloading polkituser in password cache! 3767: remove GETPWBYUID entry 1000 3767: remove GETPWBYNAME entry mjmac nscd: mem.c:417: gc: Assertion `off_alloc == off_allocend' failed. [EMAIL PROTECTED]:~# I use nscd to propagate uid/gid info into build chroots. This worked peachy-keen on 7.10 and 8.04, but now it's unusable in production for 8.10 (good thing I didn't roll this out without testing...). Please let me know if I can provide any more information. I see that the original reporter has already provided strace/valgrind info, so I don't know what I can provide (other than a patch :) ). -- nscd crashes https://bugs.launchpad.net/bugs/302724 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 302724] Re: nscd crashes
The following is a valgrind trace of a complete run from start to crash. Maybe it help tracking down this problem: ==20449== Memcheck, a memory error detector. ==20449== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al. ==20449== Using LibVEX rev 1854, a library for dynamic binary translation. ==20449== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP. ==20449== Using valgrind-3.3.1-Debian, a dynamic binary instrumentation framework. ==20449== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al. ==20449== For more details, rerun with: -v ==20449== ==20449== My PID = 20449, parent PID = 13380. Prog and args are: ==20449==/usr/sbin/nscd ==20449==-d ==20449== ==20449== Thread 3: ==20449== Conditional jump or move depends on uninitialised value(s) ==20449==at 0x14EDB: (within /usr/sbin/nscd) ==20449==by 0x15282: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== ==20449== Conditional jump or move depends on uninitialised value(s) ==20449==at 0x14EDD: (within /usr/sbin/nscd) ==20449==by 0x15282: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== ==20449== Syscall param msync(start) points to uninitialised byte(s) ==20449==at 0x50427DB: (within /lib/libpthread-2.8.90.so) ==20449==by 0x1521D: (within /usr/sbin/nscd) ==20449==by 0x15282: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== Address 0x7be01db is not stack'd, malloc'd or (recently) free'd ==20449== ==20449== Syscall param msync(start) points to uninitialised byte(s) ==20449==at 0x50427DB: (within /lib/libpthread-2.8.90.so) ==20449==by 0x119FF: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== Address 0x7be01db is not stack'd, malloc'd or (recently) free'd ==20449== ==20449== Thread 2: ==20449== Conditional jump or move depends on uninitialised value(s) ==20449==at 0x9F4D: (within /usr/sbin/nscd) ==20449==by 0xA7EB: (within /usr/sbin/nscd) ==20449==by 0xA973: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== ==20449== Conditional jump or move depends on uninitialised value(s) ==20449==at 0x9F4F: (within /usr/sbin/nscd) ==20449==by 0xA7EB: (within /usr/sbin/nscd) ==20449==by 0xA973: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== ==20449== Syscall param msync(start) points to uninitialised byte(s) ==20449==at 0x50427DB: (within /lib/libpthread-2.8.90.so) ==20449==by 0xA386: (within /usr/sbin/nscd) ==20449==by 0xA7EB: (within /usr/sbin/nscd) ==20449==by 0xA973: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== Address 0x5c0de6b is not stack'd, malloc'd or (recently) free'd ==20449== ==20449== Conditional jump or move depends on uninitialised value(s) ==20449==at 0x9F4D: (within /usr/sbin/nscd) ==20449==by 0xA7EB: (within /usr/sbin/nscd) ==20449==by 0xAAAF: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449== ==20449== Syscall param msync(start) points to uninitialised byte(s) ==20449==at 0x50427DB: (within /lib/libpthread-2.8.90.so) ==20449==by 0xA386: (within /usr/sbin/nscd) ==20449==by 0xA7EB: (within /usr/sbin/nscd) ==20449==by 0xAAAF: (within /usr/sbin/nscd) ==20449==by 0x114A2: (within /usr/sbin/nscd) ==20449==by 0x7726: (within /usr/sbin/nscd) ==20449==by 0x503B3E9: start_thread (in /lib/libpthread-2.8.90.so) ==20449==by 0x554FC6C: clone (in /lib/libc-2.8.90.so) ==20449==
