Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 8 Aug 2003 10:37:45 -0700 | From | Frank Cusack <> | Subject | Re: NPTL v userland v LT (RH9+custom kernel problem) |
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On Thu, Aug 07, 2003 at 01:39:30AM -0700, Frank Cusack wrote: > PAM prompts for the username and password, then pam_ldap appears to > get stuck in a syslog call. It doesn't actually call syslog(), but if > I compare to a functional system, the working one opens /dev/log etc > whereas the broken one does an rt_sigsuspend() and hangs until a SIGALRM > is delivered (login having set this up before prompting for the password). > That's from looking at strace; I haven't looked at ltrace or tried to > run under the debugger yet.
Even without pam_ldap, I see it getting stuck. 'groups: files ldap' in nsswitch.conf sets it off. Here's an sshd that's hung, does this light the a-ha bulb for anyone?
(gdb) bt #0 0x40564845 in __pthread_sigsuspend () from /lib/i686/libpthread.so.0 #1 0x40564318 in __pthread_wait_for_restart_signal () from /lib/i686/libpthread.so.0 #2 0x40565d30 in __pthread_alt_lock () from /lib/i686/libpthread.so.0 #3 0x40562d37 in pthread_mutex_lock () from /lib/i686/libpthread.so.0 #4 0x401df2fc in vsyslog () from /lib/i686/libc.so.6 #5 0x4024b4b7 in _log_err () from /lib/security/pam_unix.so #6 0x40249039 in pam_sm_open_session () from /lib/security/pam_unix.so #7 0x4003ac09 in pam_fail_delay () from /lib/libpam.so.0 #8 0x4003ad93 in _pam_dispatch () from /lib/libpam.so.0 #9 0x4003c978 in pam_open_session () from /lib/libpam.so.0 ...
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