Hi Kevin,
The server went down again after only an hour of uptime. This time I hooked up a monitor (had been connecting remotely) and now I'm seeing 'out of memory' errors everywhere. Did a little more digging on this forum, and I think I'm experiencing the same problem as descibed in this thread:
The mailbox and mta dies in FC4 GA version
Was this ever resolved? Since upgrading to FC4 I can't keep Zimbra up for more than an hour. Seems to be a memory "leak" somewhere ...
Below are snippets from the /opt/zimbra/log/zimbra.log just before and during the crash:
Code:
2006-04-29 19:05:30,159 INFO [ImapSSLServer-7] [] imap - [24.131.41.200] connected
2006-04-29 19:14:28,025 INFO [ImapServer-3] [] imap - [24.131.41.200] connected
2006-04-29 19:14:46,464 INFO [ImapServer-1] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:14:50,184 INFO [ImapSSLServer-3] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:20:01,590 INFO [ImapSSLServer-5] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:20:01,972 INFO [ImapServer-3] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:20:01,884 INFO [ImapSSLServer-4] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:20:01,881 INFO [ImapSSLServer-7] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:20:03,965 INFO [ImapSSLServer-6] [] ProtocolHandler - Exception occurred while handling connection
java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at com.sun.net.ssl.internal.ssl.OutputRecord.writeBuffer(OutputRecord.java:283)
at com.sun.net.ssl.internal.ssl.OutputRecord.write(OutputRecord.java:272)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:663)
at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at com.zimbra.cs.imap.ImapHandler.sendLine(ImapHandler.java:2005)
at com.zimbra.cs.imap.ImapHandler.sendResponse(ImapHandler.java:1995)
at com.zimbra.cs.imap.ImapHandler.sendOK(ImapHandler.java:1981)
at com.zimbra.cs.imap.ImapHandler.doCLOSE(ImapHandler.java:1427)
at com.zimbra.cs.imap.ImapHandler$ImapCommand.execute(ImapHandler.java:460)
at com.zimbra.cs.imap.ImapHandler.processCommand(ImapHandler.java:533)
at com.zimbra.cs.tcpserver.ProtocolHandler.processConnection(ProtocolHandler.java:231)
at com.zimbra.cs.tcpserver.ProtocolHandler.run(ProtocolHandler.java:198)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Thread.java:595)
2006-04-29 19:20:04,132 INFO [ImapSSLServer-6] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:24:37,680 INFO [ImapServer-4] [] imap - [24.131.41.200] connected
2006-04-29 19:25:28,113 INFO [ImapServer-5] [] imap - [24.131.41.200] connected
2006-04-29 19:26:58,641 INFO [ImapServer-4] [] ProtocolHandler - Handler exiting normally
2006-04-29 19:29:03,998 INFO [ImapServer-5] [] ProtocolHandler - Handler exiting normally
And snippets from /var/log/messages from just before the crash:
Code:
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: antispam: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: antivirus: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: ldap: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: logger: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: mailbox: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: mta: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: snmp: Running
Apr 29 18:58:06 zimbra zimbramon[20863]: 20863:info: 2006-04-29 18:58:01, STATUS: zimbra.thecohns.us: spell: Running
Apr 29 19:01:42 zimbra zimbramon[21650]: 21650:info: 2006-04-29 19:00:02, QUEUE: 0 0
Apr 29 19:08:59 zimbra nmbd[2194]: [2006/04/29 19:08:59, 0] nmbd/nmbd_browsesync.c:find_domain_master_name_query_fail(353)
Apr 29 19:08:59 zimbra nmbd[2194]: find_domain_master_name_query_fail:
Apr 29 19:08:59 zimbra nmbd[2194]: Unable to find the Domain Master Browser name MSHOME<1b> for the workgroup MSHOME.
Apr 29 19:08:59 zimbra nmbd[2194]: Unable to sync browse lists in this workgroup.
Apr 29 19:14:05 zimbra kernel: oom-killer: gfp_mask=0x201d2, order=0
Apr 29 19:14:05 zimbra kernel: [] out_of_memory+0x154/0x183 [] __alloc_pages+0x290/0x303
Apr 29 19:14:05 zimbra kernel: [] __do_page_cache_readahead+0x1ea/0x27b [] io_schedule+0x26/0x30
Apr 29 19:14:05 zimbra kernel: [] __wait_on_bit_lock+0x55/0x5f [] sync_page+0x0/0x3c
Apr 29 19:14:05 zimbra kernel: [] __lock_page+0x5b/0x62 [] filemap_nopage+0x14f/0x3da
Apr 29 19:14:05 zimbra kernel: [] __handle_mm_fault+0x1a6/0xb58 [] audit_syscall_exit+0x32d/0x39c
Apr 29 19:14:05 zimbra kernel: [] do_page_fault+0x26f/0x6f0 [] do_page_fault+0x0/0x6f0
Apr 29 19:14:05 zimbra kernel: [] error_code+0x4f/0x54 <6>Mem-info:
Apr 29 19:14:05 zimbra kernel: DMA per-cpu:
Apr 29 19:14:05 zimbra kernel: cpu 0 hot: high 0, batch 1 used:0
Apr 29 19:14:05 zimbra kernel: cpu 0 cold: high 0, batch 1 used:0
Apr 29 19:14:05 zimbra kernel: cpu 1 hot: high 0, batch 1 used:0
Apr 29 19:14:05 zimbra kernel: cpu 1 cold: high 0, batch 1 used:0
Apr 29 19:14:06 zimbra kernel: DMA32 per-cpu: empty
Apr 29 19:14:07 zimbra kernel: Normal per-cpu:
Apr 29 19:14:09 zimbra kernel: cpu 0 hot: high 186, batch 31 used:16
Apr 29 19:14:09 zimbra kernel: cpu 0 cold: high 62, batch 15 used:14
Apr 29 19:14:09 zimbra kernel: cpu 1 hot: high 186, batch 31 used:20
Apr 29 19:14:09 zimbra kernel: cpu 1 cold: high 62, batch 15 used:43
Apr 29 19:14:09 zimbra kernel: HighMem per-cpu: empty
Apr 29 19:14:09 zimbra kernel: Free pages: 5368kB (0kB HighMem)
Apr 29 19:14:09 zimbra kernel: Active:115380 inactive:1171 dirty:6 writeback:0 unstable:0 free:1342 slab:4064 mapped:116644 pagetables:1973
Apr 29 19:14:09 zimbra kernel: DMA free:2036kB min:88kB low:108kB high:132kB active:9752kB inactive:0kB present:16384kB pages_scanned:10309 all_unreclaimable? yes
Apr 29 19:14:09 zimbra kernel: lowmem_reserve[]: 0 0 487 487
Apr 29 19:14:14 zimbra kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Apr 29 19:14:19 zimbra kernel: lowmem_reserve[]: 0 0 487 487
Apr 29 19:14:19 zimbra kernel: Normal free:3332kB min:2780kB low:3472kB high:4168kB active:451824kB inactive:4684kB present:499456kB pages_scanned:206561 all_unreclaimable? no
Apr 29 19:14:19 zimbra kernel: lowmem_reserve[]: 0 0 0 0
Apr 29 19:14:20 zimbra kernel: HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Apr 29 19:14:21 zimbra kernel: lowmem_reserve[]: 0 0 0 0
Apr 29 19:14:22 zimbra kernel: DMA: 1*4kB 0*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2036kB
Apr 29 19:14:23 zimbra kernel: DMA32: empty
Apr 29 19:14:25 zimbra kernel: Normal: 145*4kB 12*8kB 0*16kB 1*32kB 1*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3332kB
Apr 29 19:14:25 zimbra smbd[21842]: [2006/04/29 19:14:25, 0] lib/util_sock.c:get_peer_addr(1150)
Apr 29 19:14:26 zimbra su(pam_unix)[26163]: session closed for user zimbra
Apr 29 19:14:28 zimbra kernel: HighMem: empty
Apr 29 19:14:34 zimbra smbd[21842]: getpeername failed. Error was Transport endpoint is not connected
Apr 29 19:15:00 zimbra kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
Apr 29 19:15:10 zimbra kernel: Free swap = 0kB
Apr 29 19:15:13 zimbra kernel: Total swap = 0kB
Apr 29 19:15:17 zimbra kernel: Free swap: 0kB
Apr 29 19:15:23 zimbra kernel: 128960 pages of RAM
Apr 29 19:15:28 zimbra kernel: 0 pages of HIGHMEM
Apr 29 19:15:31 zimbra kernel: 2651 reserved pages
Apr 29 19:15:34 zimbra kernel: 78615 pages shared
Apr 29 19:15:37 zimbra kernel: 0 pages swap cached
Apr 29 19:15:39 zimbra kernel: 6 pages dirty
Apr 29 19:15:42 zimbra kernel: 0 pages writeback
Apr 29 19:15:43 zimbra kernel: 116644 pages mapped
Apr 29 19:15:44 zimbra kernel: 4064 pages slab
Apr 29 19:15:47 zimbra kernel: 1973 pages pagetables
Apr 29 19:15:58 zimbra smbd[21842]: [2006/04/29 19:15:55, 0] lib/util_sock.c:get_peer_addr(1150)
Apr 29 19:16:01 zimbra kernel: Out of Memory: Kill process 21654 (sh) score 533887 and children.
Apr 29 19:16:08 zimbra smbd[21842]: getpeername failed. Error was Transport endpoint is not connected
Apr 29 19:16:14 zimbra kernel: Out of memory: Killed process 21655 (java).
Apr 29 19:16:36 zimbra smbd[21842]: [2006/04/29 19:16:35, 0] lib/access.c:check_access(328)
Apr 29 19:16:46 zimbra smbd[21842]: [2006/04/29 19:16:46, 0] lib/util_sock.c:get_peer_addr(1150)
Apr 29 19:16:46 zimbra smbd[21842]: getpeername failed. Error was Transport endpoint is not connected
Apr 29 19:16:52 zimbra smbd[21842]: Denied connection from (0.0.0.0)
Apr 29 19:17:18 zimbra smbd[21842]: [2006/04/29 19:17:07, 0] lib/util_sock.c:get_peer_addr(1150)
Apr 29 19:18:01 zimbra smbd[21842]: getpeername failed. Error was Transport endpoint is not connected
Apr 29 19:19:35 zimbra smbd[21842]: Connection denied from 0.0.0.0
Apr 29 19:19:56 zimbra kernel: oom-killer: gfp_mask=0x201d2, order=0
Apr 29 19:19:56 zimbra kernel: [] out_of_memory+0x154/0x183
Apr 29 19:19:56 zimbra kernel: [] __alloc_pages+0x290/0x303 [] __do_page_cache_readahead+0x1ea/0x27b
Apr 29 19:19:56 zimbra kernel: [] io_schedule+0x26/0x30 [] __wait_on_bit_lock+0x55/0x5f
Apr 29 19:19:56 zimbra kernel: [] sync_page+0x0/0x3c [] __lock_page+0x5b/0x62
Apr 29 19:19:56 zimbra kernel: [] filemap_nopage+0x14f/0x3da [] __handle_mm_fault+0x1a6/0xb58
Apr 29 19:19:56 zimbra kernel: [] _spin_lock_irqsave+0x9/0xd [] lock_hrtimer_base+0x19/0x35
Apr 29 19:19:56 zimbra kernel: [] audit_syscall_exit+0x40/0x39c [] do_page_fault+0x26f/0x6f0
Apr 29 19:20:01 zimbra smbd[21842]: [2006/04/29 19:20:00, 0] lib/util_sock.c:write_socket_data(430)
Apr 29 19:20:01 zimbra kernel: [] do_page_fault+0x0/0x6f0 [] error_code+0x4f/0x54
Apr 29 19:20:03 zimbra smbd[21842]: write_socket_data: write failure. Error = Connection reset by peer
Apr 29 19:20:04 zimbra kernel: Mem-info:
Apr 29 19:20:47 zimbra smbd[21842]: [2006/04/29 19:20:37, 0] lib/util_sock.c:write_socket(455)
Apr 29 19:21:24 zimbra kernel: DMA per-cpu:
Apr 29 19:23:20 zimbra smbd[21842]: write_socket: Error writing 5 bytes to socket 25: ERRNO = Connection reset by peer
Apr 29 19:23:43 zimbra kernel: cpu 0 hot: high 0, batch 1 used:0
Apr 29 19:24:07 zimbra nmbd[2194]: [2006/04/29 19:24:07, 0] nmbd/nmbd_browsesync.c:find_domain_master_name_query_fail(353)
Apr 29 19:24:10 zimbra kernel: cpu 0 cold: high 0, batch 1 used:0
Apr 29 19:24:10 zimbra smbd[21842]: [2006/04/29 19:24:10, 0] lib/util_sock.c:send_smb(647)
Apr 29 19:24:17 zimbra nmbd[2194]: find_domain_master_name_query_fail:
Apr 29 19:24:19 zimbra kernel: cpu 1 hot: high 0, batch 1 used:0
Apr 29 19:24:29 zimbra nmbd[2194]: Unable to find the Domain Master Browser name MSHOME<1b> for the workgroup MSHOME.
Apr 29 19:24:30 zimbra smbd[21842]: Error writing 5 bytes to client. -1. (Connection reset by peer)
Apr 29 19:24:33 zimbra kernel: cpu 1 cold: high 0, batch 1 used:0
Apr 29 19:24:40 zimbra nmbd[2194]: Unable to sync browse lists in this workgroup.
Apr 29 19:25:17 zimbra kernel: DMA32 per-cpu: empty
Apr 29 19:25:34 zimbra kernel: Normal per-cpu:
Apr 29 19:25:38 zimbra kernel: cpu 0 hot: high 186, batch 31 used:130
Apr 29 19:25:41 zimbra kernel: cpu 0 cold: high 62, batch 15 used:18
Apr 29 19:25:46 zimbra kernel: cpu 1 hot: high 186, batch 31 used:165
Apr 29 19:25:51 zimbra kernel: cpu 1 cold: high 62, batch 15 used:33
Apr 29 19:25:53 zimbra kernel: HighMem per-cpu: empty
Apr 29 19:25:53 zimbra kernel: Free pages: 4876kB (0kB HighMem)
Apr 29 19:25:58 zimbra kernel: Active:116146 inactive:1148 dirty:0 writeback:0 unstable:0 free:1219 slab:4123 mapped:116107 pagetables:2031
Apr 29 19:26:00 zimbra kernel: DMA free:2036kB min:88kB low:108kB high:132kB active:9740kB inactive:20kB present:16384kB pages_scanned:14292 all_unreclaimable? yes
Apr 29 19:26:10 zimbra kernel: lowmem_reserve[]: 0 0 487 487
Apr 29 19:26:22 zimbra kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Apr 29 19:26:37 zimbra kernel: lowmem_reserve[]: 0 0 487 487
Apr 29 19:26:50 zimbra kernel: Normal free:2840kB min:2780kB low:3472kB high:4168kB active:454844kB inactive:4572kB present:499456kB pages_scanned:79814 all_unreclaimable? no
Apr 29 19:26:58 zimbra kernel: lowmem_reserve[]: 0 0 0 0
Apr 29 19:27:06 zimbra kernel: HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Apr 29 19:27:15 zimbra kernel: lowmem_reserve[]: 0 0 0 0
Apr 29 19:27:25 zimbra kernel: DMA: 1*4kB 0*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2036kB
Apr 29 19:27:35 zimbra kernel: DMA32: empty
Apr 29 19:27:42 zimbra kernel: Normal: 16*4kB 9*8kB 1*16kB 2*32kB 1*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 2840kB
Apr 29 19:27:58 zimbra kernel: HighMem: empty
Apr 29 19:28:04 zimbra kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
Apr 29 19:28:04 zimbra kernel: Free swap = 0kB
Apr 29 19:28:15 zimbra kernel: Total swap = 0kB
Apr 29 19:28:53 zimbra kernel: Free swap: 0kB
Apr 29 19:28:55 zimbra kernel: 128960 pages of RAM
Apr 29 19:29:03 zimbra kernel: 0 pages of HIGHMEM
Apr 29 19:29:16 zimbra kernel: 2651 reserved pages
Apr 29 19:29:32 zimbra kernel: 77677 pages shared
Apr 29 19:29:39 zimbra kernel: 0 pages swap cached
Apr 29 19:29:47 zimbra kernel: 0 pages dirty
Apr 29 19:29:47 zimbra kernel: 0 pages writeback
Apr 29 19:29:47 zimbra kernel: 116107 pages mapped
Apr 29 19:29:47 zimbra kernel: 4123 pages slab
Apr 29 19:29:52 zimbra kernel: 2031 pages pagetables
Apr 29 19:29:53 zimbra kernel: Out of Memory: Kill process 3516 (mysqld_safe) score 425352 and children.
Apr 29 19:29:54 zimbra kernel: Out of memory: Killed process 3605 (mysqld).
Apr 29 19:29:58 zimbra kernel: oom-killer: gfp_mask=0x201d2, order=0
Apr 29 19:30:02 zimbra kernel: [] out_of_memory+0x154/0x183 [] __alloc_pages+0x290/0x303
Apr 29 19:30:20 zimbra kernel: [] __do_page_cache_readahead+0x1ea/0x27b [] __wake_up+0x32/0x43
Apr 29 19:30:25 zimbra kernel: [] filemap_nopage+0x14f/0x3da [] unqueue_me+0x5a/0xd5
Apr 29 19:30:31 zimbra kernel: [] __handle_mm_fault+0x1a6/0xb58 [] schedule+0x377/0xe59
Apr 29 19:30:36 zimbra kernel: [] do_page_fault+0x26f/0x6f0 [] do_page_fault+0x0/0x6f0
Apr 29 19:30:41 zimbra kernel: [] error_code+0x4f/0x54 <6>Mem-info:
Apr 29 19:30:46 zimbra kernel: DMA per-cpu:
Apr 29 19:30:51 zimbra kernel: cpu 0 hot: high 0, batch 1 used:0
Apr 29 19:30:55 zimbra kernel: cpu 0 cold: high 0, batch 1 used:0
Apr 29 19:30:55 zimbra kernel: cpu 1 hot: high 0, batch 1 used:0
Apr 29 19:31:00 zimbra kernel: cpu 1 cold: high 0, batch 1 used:0
Apr 29 19:31:01 zimbra kernel: DMA32 per-cpu: empty
Apr 29 19:31:07 zimbra kernel: Normal per-cpu:
Apr 29 19:31:11 zimbra kernel: cpu 0 hot: high 186, batch 31 used:155
Apr 29 19:31:16 zimbra kernel: cpu 0 cold: high 62, batch 15 used:55
Apr 29 19:31:30 zimbra kernel: cpu 1 hot: high 186, batch 31 used:120
Apr 29 19:33:58 zimbra kernel: cpu 1 cold: high 62, batch 15 used:2
Apr 29 19:34:01 zimbra kernel: HighMem per-cpu: empty
Apr 29 19:34:01 zimbra kernel: Free pages: 5544kB (0kB HighMem)
Apr 29 19:34:02 zimbra kernel: Active:115295 inactive:867 dirty:0 writeback:0 unstable:0 free:1386 slab:4273 mapped:115881 pagetables:2241
Apr 29 19:35:51 zimbra su(pam_unix)[12790]: session closed for user zimbra
Apr 29 19:36:55 zimbra zimbramon[21651]: 21651:info: 2006-04-29 19:00:02, STATUS: : Cannot: determine
Apr 29 19:36:57 zimbra zimbramon[21649]: 21649:info: 2006-04-29 19:00:03, DISK: : dev: /dev/sda3, mp: /, tot: 153488, avail: 126226
Apr 29 19:35:55 zimbra kernel: DMA free:2036kB min:88kB low:108kB high:132kB active:9772kB inactive:0kB present:16384kB pages_scanned:14058 all_unreclaimable? yes
Apr 29 19:37:01 zimbra zimbramon[21848]: 21848:info: 2006-04-29 19:20:06, QUEUE: 0 0
Apr 29 19:36:35 zimbra kernel: lowmem_reserve[]: 0 0 487 487
Apr 29 19:36:47 zimbra kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Apr 29 19:36:50 zimbra kernel: lowmem_reserve[]: 0 0 487 487
Apr 29 19:36:52 zimbra kernel: Normal free:3508kB min:2780kB low:3472kB high:4168kB active:451408kB inactive:3468kB present:499456kB pages_scanned:7172 all_unreclaimable? no
Apr 29 19:36:53 zimbra kernel: lowmem_reserve[]: 0 0 0 0
Apr 29 19:36:53 zimbra kernel: HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Apr 29 19:36:58 zimbra kernel: lowmem_reserve[]: 0 0 0 0
Apr 29 19:37:00 zimbra kernel: DMA: 1*4kB 0*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2036kB
Apr 29 19:37:02 zimbra kernel: DMA32: empty
Apr 29 19:37:05 zimbra kernel: Normal: 181*4kB 8*8kB 4*16kB 1*32kB 1*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3508kB
Apr 29 19:37:05 zimbra kernel: HighMem: empty
Apr 29 19:37:05 zimbra kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
Apr 29 19:37:11 zimbra kernel: Free swap = 0kB
Apr 29 19:37:25 zimbra kernel: Total swap = 0kB
Apr 29 19:38:18 zimbra kernel: Free swap: 0kB
Definitely some kind of memory issue with FC4 and 3.1. This machine has 512mb ram, and never had any problems running FC3 with 3.x. In fact, I haven't had to reboot this machine in months until today.
Also -- FYI -- I've been running a separate LAMP server on this box with the previous FC3/ZCS 3.1 setup. Never had any problems with it.
Thanks Kevin.