From owner-freebsd-current@FreeBSD.ORG Sat Mar 9 22:21:52 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id D18CFC04 for ; Sat, 9 Mar 2013 22:21:52 +0000 (UTC) (envelope-from peo@intersonic.se) Received: from neonpark.inter-sonic.com (neonpark.inter-sonic.com [212.247.8.98]) by mx1.freebsd.org (Postfix) with ESMTP id 50B39D30 for ; Sat, 9 Mar 2013 22:21:51 +0000 (UTC) X-Virus-Scanned: amavisd-new at BSDLabs AB Message-ID: <513BB5F7.10201@intersonic.se> Date: Sat, 09 Mar 2013 23:21:43 +0100 From: Per olof Ljungmark Organization: Intersonic AB User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130221 Thunderbird/17.0.3 MIME-Version: 1.0 To: "Hartmann, O." Subject: Re: CURRENT (r248061):Thunderbird SIGNAL 11 with OpenLDAP / nscd(1) broken pipe/ References: <513AFBE3.8070506@zedat.fu-berlin.de> <513AFFF0.6010500@zedat.fu-berlin.de> In-Reply-To: <513AFFF0.6010500@zedat.fu-berlin.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: FreeBSD Current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Mar 2013 22:21:52 -0000 On 2013-03-09 10:25, Hartmann, O. wrote: > Am 03/09/13 10:07, schrieb Hartmann, O.: >> For the introduction, I filed a PR for this at beginning of 2012 and >> suffered from the very same problem close to two years before on ALL >> FreeBSD versions and platforms using OpenLDAP as the user backend: >> >> ports/164239: [PATCH] mail/thunderbird: crash with nss_ldap >> >> Even with the suggested patch by the maintainer the problem stayed. >> >> With the introduction of bad code due to updates with > r247804 and the >> following issues of SIGNAL 13/broken pipe, the problem now is even worse >> in FreeBSD 10.0 r248061. >> From my limited point of view I guess this long lasting unresolved >> problem could have been revealed itself and I hope this could be fixed >> along with fixing nscd(1). >> >> Again, Thunderbird in all flavours since 2010 crashes on FreeBSD 8/9 and >> now 10.0-CURRENT when it is used on systems with user backend in >> OpenLDAP or any LDAP (Thunderbird works on non-OpenLDAP backed systems >> of the same OS revision). >> >> I was able to "solve" the problem by starting Firefox first and only >> Firefox getting started prior to Thunderbird resolved the problem for a >> while, but closing Firefox and waiting a bit left Thunderbird >> unstarteable again until Firefox was closed and reopened again. >> >> I guess this strange behaviour reveals a deeper issue not necessarily >> bound to nscd(1) (since the problem with Thunderbird also occurs without >> nscd(1), BUT always bound to the use of OpenLDAP backend (with >> security/pam_ldap and net/nss_ldap from ports). >> >> Now, on FreeBSD 10.0-CURRENT r248061/amd64, Thunderbird dies immediately >> with SIGNAL 11 on those boxes with OpenLDAP backend and no "trick" makes >> Thunderbird starting enymore. >> >> In my desperation, I did a truss, see below and it seems to me that >> there is a problem getting the effective UID, since the SIGNAL 11 arises >> after geteuid(). >> >> At the moment, I have switched off nscd(1) by default since it is broken >> in CURRENT or doing very strange things (see list about broken pipe in >> the system, sudo(1) or even the port's system (SIGNAL 13)). >> >> I think there is a major issue covered and I hope this could be solved >> by the problems triggered. >> >> it is hard to believe that I'm the only one using FreeBSD for both >> workstation and server environment in conjuction with OpenLDAP and >> facing the problem with a popular software like Thunderbird. >> >> If it is a stupid configuation problem then this must be very, very >> special since it is now sticky with me for years. >> >> Here comes the truss ...: >> >> open("/etc/pwd.db",O_RDONLY,00) = 4 (0x4) >> fcntl(4,F_SETFD,FD_CLOEXEC) = 0 (0x0) >> fstat(4,{ mode=-rw-r--r-- ,inode=117927,size=40960,blksize=16384 }) = 0 >> (0x0) >> read(4,"\0\^F\^Ua\0\0\0\^B\0\0\^D\M-R\0"...,260) = 260 (0x104) >> pread(0x4,0x801bfc000,0x1000,0x6000,0x1,0x0) = 4096 (0x1000) >> pread(0x4,0x813927000,0x1000,0x2000,0x1,0x0) = 4096 (0x1000) >> close(4) = 0 (0x0) >> socket(PF_LOCAL,SOCK_STREAM,0) = 4 (0x4) >> connect(4,{ AF_UNIX "/var/run/nscd" },15) ERR#2 'No such file or >> directory' >> close(4) = 0 (0x0) >> sigprocmask(SIG_SETMASK,SIGHUP|SIGINT|SIGQUIT|SIGILL|SIGTRAP|SIGABRT|SIGEMT|SIGFPE|SIGKILL|SIGBUS|SIGSEGV|SIGSYS|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2,0x0) >> = 0 (0x0) >> sigaction(SIGPIPE,{ SIG_IGN 0x0 ss_t },{ SIG_IGN SA_RESTART ss_t }) = 0 >> (0x0) >> sigprocmask(SIG_SETMASK,0x0,0x0) = 0 (0x0) >> getpid() = 3235 (0xca3) >> geteuid() = 2002 (0x7d2) >> open("/usr/local/etc/nss_ldap.conf",O_RDONLY,0666) = 4 (0x4) >> fstat(4,{ mode=-rw-r--r-- ,inode=5818085,size=7997,blksize=16384 }) = 0 >> (0x0) >> fstat(4,{ mode=-rw-r--r-- ,inode=5818085,size=7997,blksize=16384 }) = 0 >> (0x0) >> read(4,"@(#)$Id: ldap.conf,v 2.47 2006/0"...,16384) = 7997 (0x1f3d) >> read(4,0x813928000,16384) = 0 (0x0) >> close(4) = 0 (0x0) >> __sysctl(0x7fffffffb1f8,0x2,0x7fffffffb220,0x7fffffffb200,0x0,0x0) = 0 (0x0) >> gettimeofday({1362819606.123684 },0x0) = 0 (0x0) >> getpid() = 3235 (0xca3) >> issetugid(0x35001c1c,0x80,0x801b1b600,0x10,0x2,0x1) = 0 (0x0) >> open("/etc/resolv.conf",O_RDONLY,0666) = 4 (0x4) >> fstat(4,{ mode=-rw-r--r-- ,inode=117845,size=101,blksize=16384 }) = 0 (0x0) >> read(4,"# Generated by resolvconf\nnames"...,16384) = 101 (0x65) >> read(4,0x813928000,16384) = 0 (0x0) >> close(4) = 0 (0x0) >> __sysctl(0x7fffffffab28,0x2,0x7fffffffad20,0x7fffffffab30,0x0,0x0) = 0 (0x0) >> issetugid(0x801526ae8,0x2e,0x2e,0x2e,0x101010101010101,0x8080808080808080) >> = 0 (0x0) >> stat("/etc/nsswitch.conf",{ mode=-rw-r--r-- >> ,inode=117790,size=991,blksize=16384 }) = 0 (0x0) >> open("/etc/hosts",O_RDONLY,0666) = 4 (0x4) >> fstat(4,{ mode=-rw-r--r-- ,inode=117862,size=2418,blksize=16384 }) = 0 (0x0) >> read(4,"# $FreeBSD: head/etc/hosts 10999"...,16384) = 2418 (0x972) >> close(4) = 0 (0x0) >> open("/usr/local/etc/openldap/ldap.conf",O_RDONLY,0666) = 4 (0x4) >> fstat(4,{ mode=-rw-r--r-- ,inode=5817420,size=410,blksize=16384 }) = 0 (0x0) >> read(4,"#\n# LDAP Defaults\n#\n\n# See l"...,16384) = 410 (0x19a) >> read(4,0x813928000,16384) = 0 (0x0) >> close(4) = 0 (0x0) >> geteuid() = 2002 (0x7d2) >> getuid() = 2002 (0x7d2) >> open("/home/ohartmann/ldaprc",O_RDONLY,0666) ERR#2 'No such file or >> directory' >> open("/home/ohartmann/.ldaprc",O_RDONLY,0666) ERR#2 'No such file or >> directory' >> open("ldaprc",O_RDONLY,0666) ERR#2 'No such file or >> directory' >> sigprocmask(SIG_SETMASK,SIGHUP|SIGINT|SIGQUIT|SIGILL|SIGTRAP|SIGABRT|SIGEMT|SIGFPE|SIGKILL|SIGBUS|SIGSEGV|SIGSYS|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2,0x0) >> = 0 (0x0) >> sigaction(SIGPIPE,{ SIG_IGN SA_RESTART ss_t },{ SIG_IGN 0x0 ss_t }) = 0 >> (0x0) >> sigprocmask(SIG_SETMASK,0x0,0x0) = 0 (0x0) >> getuid() = 2002 (0x7d2) >> stat("/etc/nsswitch.conf",{ mode=-rw-r--r-- >> ,inode=117790,size=991,blksize=16384 }) = 0 (0x0) >> geteuid() = 2002 (0x7d2) >> open("/etc/pwd.db",O_RDONLY,00) = 4 (0x4) >> fcntl(4,F_SETFD,FD_CLOEXEC) = 0 (0x0) >> fstat(4,{ mode=-rw-r--r-- ,inode=117927,size=40960,blksize=16384 }) = 0 >> (0x0) >> read(4,"\0\^F\^Ua\0\0\0\^B\0\0\^D\M-R\0"...,260) = 260 (0x104) >> pread(0x4,0x813928000,0x1000,0x6000,0x1,0x0) = 4096 (0x1000) >> pread(0x4,0x813929000,0x1000,0x5000,0x1,0x0) = 4096 (0x1000) >> close(4) = 0 (0x0) >> socket(PF_LOCAL,SOCK_STREAM,0) = 4 (0x4) >> connect(4,{ AF_UNIX "/var/run/nscd" },15) ERR#2 'No such file or >> directory' >> close(4) = 0 (0x0) >> sigprocmask(SIG_SETMASK,SIGHUP|SIGINT|SIGQUIT|SIGILL|SIGTRAP|SIGABRT|SIGEMT|SIGFPE|SIGKILL|SIGBUS|SIGSEGV|SIGSYS|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2,0x0) >> = 0 (0x0) >> sigaction(SIGPIPE,{ SIG_IGN 0x0 ss_t },{ SIG_IGN SA_RESTART ss_t }) = 0 >> (0x0) >> sigprocmask(SIG_SETMASK,0x0,0x0) = 0 (0x0) >> stat("/usr/local/etc/nss_ldap.conf",{ mode=-rw-r--r-- >> ,inode=5818085,size=7997,blksize=16384 }) = 0 (0x0) >> getpid() = 3235 (0xca3) >> geteuid() = 2002 (0x7d2) >> SIGNAL 11 (SIGSEGV) >> process exit, rval = 0 > > Deleting /usr/local/etc/nss_ldap.conf, which is a link (hard or soft, > doesn't matter the result) to /usr/local/etc/ldap.conf, makes > Thunderbird start again as OpenLDAP backend wasn't configured/installed. > > But in that case, no OpenLDAP backed up users are available on the system.SE556539368201 Not 100% sure but I believe I'm working right now on a system with LDAP-based user accounts ( a Samba LDAP directory ) through pam_ldap (in pam.d), nss_ldap (nsswitch.conf) and /usr/local/etc/nss_ldap.conf exactly as you describe. Never had issues similar to the above in the 7-STABLE through 9-STABLE series. The only problem I have with TB is its apetite for memory. Perhaps I'm missing something? May the difference be that my account is in /etc/passwd too? I could log in as a different user and check if you'd like. id peo uid=1001(peo) gid=0(wheel) groups=0(wheel),513(domusers),512(domadmin) Cheers, //per