Hi

I am using FC5 linux OS and ZCS_RC1_5 version of Zimbra Open Source Edition.

I got error like 'mailboxd stopped', while giving 'zmcontrol status' command. And below that 'zmmailboxdctl is not running' error displayed.
And I manually started the zmmailboxdctl using the command 'zmmailboxdctl start'. Then its seems to be ok.
But If I tried for web interface or admin console through web browser, mailboxd is stopped again.
I reinstalled Zimbra many times. The same problem coming.
This error repeats not only while accessing the web page, but also automatically coming after it is started.

Here is my /var/log/zimbra.log file

Code:
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14829]: status requested
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14829]: stale pid 12989 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14829]: assuming no other instance is running
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14829]: no manager process is running
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14830]: start requested
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14830]: checking if another instance of manager is already running
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14830]: stale pid 12989 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14830]: assuming no other instance is running
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14831]: wrote manager pid 14831 to /opt/zimbra/log/zmmailboxd.pid
Nov  6 16:55:11 sugarzimbra zmmailboxdmgr[14831]: manager started mailboxd/JVM with pid 14832
Nov  6 16:55:19 sugarzimbra zmmailboxdmgr[14831]: manager woke up from wait on mailboxd/JVM with pid 14832
Nov  6 16:55:19 sugarzimbra zmmailboxdmgr[14831]: manager started mailboxd/JVM with pid 14883
Nov  6 16:55:37 sugarzimbra zmmailboxdmgr[14831]: manager woke up from wait on mailboxd/JVM with pid 14883
Nov  6 16:55:37 sugarzimbra zmmailboxdmgr[14831]: mailboxd/JVM exited twice in 18 seconds (tolerance=60)
Nov  6 16:56:04 sugarzimbra zmmailboxdmgr[15464]: status requested
Nov  6 16:56:04 sugarzimbra zmmailboxdmgr[15464]: stale pid 14831 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:56:04 sugarzimbra zmmailboxdmgr[15464]: assuming no other instance is running
Nov  6 16:56:04 sugarzimbra zmmailboxdmgr[15464]: no manager process is running
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: logger: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: mailbox: Stopped 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: mta: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: spell: Running 
Nov  6 16:56:05 sugarzimbra zimbramon[15271]: 15271:info: 2007-11-06 16:56:01, STATUS: sugarzimbra.com: stats: Stopped 
Nov  6 16:58:06 sugarzimbra zmmailboxdmgr[16399]: status requested
Nov  6 16:58:06 sugarzimbra zmmailboxdmgr[16399]: stale pid 14831 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:58:06 sugarzimbra zmmailboxdmgr[16399]: assuming no other instance is running
Nov  6 16:58:06 sugarzimbra zmmailboxdmgr[16399]: no manager process is running
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: logger: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: mailbox: Stopped 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: mta: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: spell: Running 
Nov  6 16:58:08 sugarzimbra zimbramon[16214]: 16214:info: 2007-11-06 16:58:01, STATUS: sugarzimbra.com: stats: Stopped 
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17546]: status requested
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17546]: stale pid 14831 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17546]: assuming no other instance is running
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17546]: no manager process is running
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17547]: start requested
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17547]: checking if another instance of manager is already running
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17547]: stale pid 14831 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17547]: assuming no other instance is running
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17548]: wrote manager pid 17548 to /opt/zimbra/log/zmmailboxd.pid
Nov  6 16:59:27 sugarzimbra zmmailboxdmgr[17548]: manager started mailboxd/JVM with pid 17549
Nov  6 16:59:36 sugarzimbra zmmailboxdmgr[17548]: manager woke up from wait on mailboxd/JVM with pid 17549
Nov  6 16:59:36 sugarzimbra zmmailboxdmgr[17548]: manager started mailboxd/JVM with pid 17623
Nov  6 16:59:44 sugarzimbra zmmailboxdmgr[17548]: manager woke up from wait on mailboxd/JVM with pid 17623
Nov  6 16:59:44 sugarzimbra zmmailboxdmgr[17548]: mailboxd/JVM exited twice in 8 seconds (tolerance=60)
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18112]: status requested
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18112]: stale pid 17548 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18112]: assuming no other instance is running
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18112]: no manager process is running
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18113]: start requested
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18113]: checking if another instance of manager is already running
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18113]: stale pid 17548 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18113]: assuming no other instance is running
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18114]: wrote manager pid 18114 to /opt/zimbra/log/zmmailboxd.pid
Nov  6 16:59:54 sugarzimbra zmmailboxdmgr[18114]: manager started mailboxd/JVM with pid 18115
Nov  6 17:00:01 sugarzimbra zimbramon[18180]: 18180:info: 2007-11-06 17:00:01, QUEUE: 0 0 
Nov  6 17:00:04 sugarzimbra zimbramon[18189]: 18189:info: 2007-11-06 17:00:01, DISK: sugarzimbra.com: dev: /dev/sda2, mp: /, tot: 35843, avail: 29521 
Nov  6 17:00:04 sugarzimbra zimbramon[18189]: 18189:info: 2007-11-06 17:00:01, DISK: sugarzimbra.com: dev: /dev/sda1, mp: /boot, tot: 99, avail: 85 
Nov  6 17:00:08 sugarzimbra zmmailboxdmgr[18114]: manager woke up from wait on mailboxd/JVM with pid 18115
Nov  6 17:00:08 sugarzimbra zmmailboxdmgr[18114]: manager started mailboxd/JVM with pid 18452
Nov  6 17:00:08 sugarzimbra zmmailboxdmgr[18478]: status requested
Nov  6 17:00:09 sugarzimbra zmmailboxdmgr[18478]: status OK
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: logger: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: mailbox: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: mta: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: spell: Running 
Nov  6 17:00:12 sugarzimbra zimbramon[18188]: 18188:info: 2007-11-06 17:00:01, STATUS: sugarzimbra.com: stats: Stopped 
Nov  6 17:00:17 sugarzimbra zmmailboxdmgr[18114]: manager woke up from wait on mailboxd/JVM with pid 18452
Nov  6 17:00:17 sugarzimbra zmmailboxdmgr[18114]: mailboxd/JVM exited twice in 9 seconds (tolerance=60)
Nov  6 17:02:04 sugarzimbra zmmailboxdmgr[19563]: status requested
Nov  6 17:02:04 sugarzimbra zmmailboxdmgr[19563]: stale pid 18114 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 17:02:04 sugarzimbra zmmailboxdmgr[19563]: assuming no other instance is running
Nov  6 17:02:04 sugarzimbra zmmailboxdmgr[19563]: no manager process is running
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: logger: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: mailbox: Stopped 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: mta: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: spell: Running 
Nov  6 17:02:05 sugarzimbra zimbramon[19401]: 19401:info: 2007-11-06 17:02:01, STATUS: sugarzimbra.com: stats: Stopped 
Nov  6 17:04:04 sugarzimbra zmmailboxdmgr[20667]: status requested
Nov  6 17:04:04 sugarzimbra zmmailboxdmgr[20667]: stale pid 18114 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 17:04:04 sugarzimbra zmmailboxdmgr[20667]: assuming no other instance is running
Nov  6 17:04:04 sugarzimbra zmmailboxdmgr[20667]: no manager process is running
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: logger: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: mailbox: Stopped 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: mta: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: spell: Running 
Nov  6 17:04:04 sugarzimbra zimbramon[20485]: 20485:info: 2007-11-06 17:04:01, STATUS: sugarzimbra.com: stats: Stopped 
Nov  6 17:06:04 sugarzimbra zmmailboxdmgr[21805]: status requested
Nov  6 17:06:04 sugarzimbra zmmailboxdmgr[21805]: stale pid 18114 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 17:06:04 sugarzimbra zmmailboxdmgr[21805]: assuming no other instance is running
Nov  6 17:06:04 sugarzimbra zmmailboxdmgr[21805]: no manager process is running
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: logger: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: mailbox: Stopped 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: mta: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: spell: Running 
Nov  6 17:06:05 sugarzimbra zimbramon[21623]: 21623:info: 2007-11-06 17:06:02, STATUS: sugarzimbra.com: stats: Stopped 
Nov  6 17:08:03 sugarzimbra zmmailboxdmgr[22886]: status requested
Nov  6 17:08:03 sugarzimbra zmmailboxdmgr[22886]: stale pid 18114 found in /opt/zimbra/log/zmmailboxd.pid: No such process
Nov  6 17:08:03 sugarzimbra zmmailboxdmgr[22886]: assuming no other instance is running
Nov  6 17:08:03 sugarzimbra zmmailboxdmgr[22886]: no manager process is running
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: antispam: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: antivirus: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: ldap: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: logger: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: mailbox: Stopped 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: mta: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: snmp: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: spell: Running 
Nov  6 17:08:04 sugarzimbra zimbramon[22724]: 22724:info: 2007-11-06 17:08:01, STATUS: sugarzimbra.com: stats: Stopped
Please let me know what i have to do to resolve this issue....

Thanks and Regards,
Nandhu.