Servermgrd crashes every two minutes

Question

Let me know if there's a better place to post this.
I've had Lion Server running on a mini server for the past couple of weeks, no real problems.  Upgraded to 10.7.2
In the last week or so I've started seeing this in the logs:
Nov 27 17:06:39 office servermgrd[86199]: [86199] error in getAndLockContext: flock(servermgr_info) FATAL time out
Nov 27 17:06:39 office servermgrd[86199]: [86199] process will force-quit to avoid deadlock
Nov 27 17:06:39 office servermgrd[86199]: outstanding requests are: (
                Command = getEventMonitorConfig;
                Module = "servermgr_info";
                Timestamp = "2011-11-27 17:04:38 +0000";
...(more requests)...
Nov 27 17:06:39 office com.apple.launchd[1] (com.apple.servermgrd[86199]): Exited with code: 1
and servermgrd restarts.
I tried a reboot, but same thing happened afterwards.
It's doing this every few minutes now, which makes it hard to use the graphical tools.
Dec  2 16:35:30 office com.apple.launchd[1] (com.apple.servermgrd[47746]): Exited with code: 1
Dec  2 16:37:43 office com.apple.launchd[1] (com.apple.servermgrd[47939]): Exited with code: 1
Dec  2 16:39:48 office com.apple.launchd[1] (com.apple.servermgrd[48129]): Exited with code: 1
Any ideas?  It's not affecting any actual services.
Thanks,
Sean
Here's some CrashReporter output.  This output occurs only 6 times a day rather than every few minutes.
Process:         servermgrd [36644]
Path:            /System/Library/CoreServices/ServerManagerDaemon.bundle/Contents/MacOS/servermg rd
Identifier:      servermgrd
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  launchd [1]
Date/Time:       2011-12-02 12:30:19.983 +0000
OS Version:      Mac OS X Server 10.7.2 (11C74)
Report Version:  9
Crashed Thread:  7
Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
VM Regions Near 0:
-->
    __TEXT                 000000010d8a2000-000000010d8b4000 [   72K] r-x/rwx SM=COW  /System/Library/CoreServices/ServerManagerDaemon.bundle/Contents/MacOS/servermg rd
Thread 7 Crashed:
0   ???                                     000000000000000000 0 + 0
1   libcommonCrypto.dylib                   0x00007fff903b55bc CCCryptorCreateFromDataWithMode + 837
2   libcommonCrypto.dylib                   0x00007fff903b578e CCCryptorCreateFromData + 155
3   libcommonCrypto.dylib                   0x00007fff903b4dfd CCCryptorCreate + 133
4   com.apple.security                      0x00007fff8fa2c41d CCSymmInit + 154
5   com.apple.security                      0x00007fff8fa2c091 SSLInitPendingCiphers + 476
6   com.apple.security                      0x00007fff8fa286f1 SSLAdvanceHandshake + 5333
7   com.apple.security                      0x00007fff8fa270d5 SSLProcessHandshakeRecord + 789
8   com.apple.security                      0x00007fff8fa26d6b SSLProcessProtocolMessage + 82
9   com.apple.security                      0x00007fff8fa26759 SSLHandshakeProceed + 390
10  com.apple.security                      0x00007fff8fa265c3 SSLHandshake + 107
11  com.apple.ServerManagerDaemon           0x000000010d8abe6a -[AbstractSSLSocket readData:withLimit:] + 395
12  com.apple.ServerManagerDaemon           0x000000010d8ad1ed -[BufferedSSLSocket readDataUpToData:withLimit:] + 74
13  com.apple.ServerManagerDaemon           0x000000010d8ad19c -[BufferedSSLSocket readDataUpToString:] + 56
14  com.apple.ServerManagerDaemon           0x000000010d8aa934 -[SessionController threadListen:] + 128
15  com.apple.Foundation                    0x00007fff94f3d7fe -[NSThread main] + 68
16  com.apple.Foundation                    0x00007fff94f3d776 __NSThread__main__ + 1575
17  libsystem_c.dylib                       0x00007fff928d28bf _pthread_start + 335
18  libsystem_c.dylib                       0x00007fff928d5b75 thread_start + 13
Thread 8:
0   libsystem_c.dylib                   0x00007fff928abcbd memmove$VARIANT$sse42 + 0
1   com.apple.security                  0x00007fff8fa2be16 HMAC_Init + 33
2   com.apple.security                  0x00007fff8fa2bc0e tlsPHash + 117
3   com.apple.security                  0x00007fff8fa2bb14 SSLInternal_PRF + 213
4   com.apple.security                  0x00007fff8fa2c772 tls1ComputeFinishedMac + 191
5   com.apple.security                  0x00007fff8fa30a23 SSLProcessFinished + 243
6   com.apple.security                  0x00007fff8fa26fe9 SSLProcessHandshakeRecord + 553
7   com.apple.security                  0x00007fff8fa26d6b SSLProcessProtocolMessage + 82
8   com.apple.security                  0x00007fff8fa26759 SSLHandshakeProceed + 390
9   com.apple.security                  0x00007fff8fa265c3 SSLHandshake + 107
10  com.apple.ServerManagerDaemon       0x000000010d8abe6a -[AbstractSSLSocket readData:withLimit:] + 395
11  com.apple.ServerManagerDaemon       0x000000010d8ad1ed -[BufferedSSLSocket readDataUpToData:withLimit:] + 74
12  com.apple.ServerManagerDaemon       0x000000010d8ad19c -[BufferedSSLSocket readDataUpToString:] + 56
13  com.apple.ServerManagerDaemon       0x000000010d8aa934 -[SessionController threadListen:] + 128
14  com.apple.Foundation                0x00007fff94f3d7fe -[NSThread main] + 68
15  com.apple.Foundation                0x00007fff94f3d776 __NSThread__main__ + 1575
16  libsystem_c.dylib                   0x00007fff928d28bf _pthread_start + 335
17  libsystem_c.dylib                   0x00007fff928d5b75 thread_start + 13

Answer 1

In our 10.7.4 flock(servermgr_info) case, I could isolate it to whether the DNS service was stopped or started.
DNS service = stopped = ok
DNS service = started = error in getAndLockContext: flock(servermgr_info) FATAL time out
Jun 29 13:44:34 mac00 servermgrd[814]: [814] error in getAndLockContext: flock(servermgr_info) FATAL time out
Jun 29 13:44:34 mac00 servermgrd[814]: [814] process will force-quit to avoid deadlock
Jun 29 13:44:34 mac00 servermgrd[814]: outstanding requests are: (
            Command = getState;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:32 +0000";
            Command = Idle;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:32 +0000";
            Command = readSettings;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:32 +0000";
            Command = readSettings;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:32 +0000";
            Command = getHistory;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:33 +0000";
            Command = readSettings;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:34 +0000";
            Command = getHistory;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:34 +0000";
            Command = getState;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:42:51 +0000";
            Command = readSettings;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:43:17 +0000";
            Command = Idle;
            Module = "servermgr_info";
            Timestamp = "2012-06-29 11:43:32 +0000";
Jun 29 13:44:34 mac00 com.apple.launchd[1] (com.apple.servermgrd[814]): Exited with code: 1