Anyone know how to fix this?

In reply to myself, some more info...

Using Google I found some hints that maybe the cache size is too small... but how can that be fixed? Or... since this is BDB and the machine is a sparc64, it's some memory alignment issue?

# l /var/lib/dovecot/ total 3116 drwxr-x--- 2 root wheel - 512B Jan 22 11:26 ./ drwxr-x--- 3 root wheel - 512B Jan 15 11:23 ../ -rw------- 1 root wheel - 24.0K Jan 23 07:13 __db.001 -rw------- 1 root wheel - 64.0K Jan 23 07:13 __db.002 -rw------- 1 root wheel - 264K Jan 23 07:13 __db.003 -rw------- 1 root wheel - 96.0K Jan 23 07:13 __db.004 -rw------- 1 root wheel - 56.0K Jan 23 07:13 __db.005 -rw------- 1 root wheel - 0B Jan 15 12:01 auth-success -rw------- 1 root wheel - 32.0K Jan 22 13:58 expire.db -rw------- 1 root wheel - 10.0M Jan 22 23:03 log.0000000001 -rw-r--r-- 2 root wheel - 236B Jan 22 11:26 ssl-parameters.dat

# db4_stat -d /var/lib/dovecot/expire.db Fri Jan 23 08:30:19 2009 Local time 53162 Btree magic number 9 Btree version number Big-endian Byte order Flags 2 Minimum keys per-page 16384 Underlying database page size 4079 Overflow key/data size 1 Number of levels in the tree 1 Number of unique keys in the tree 1 Number of data items in the tree 0 Number of tree internal pages 0 Number of bytes free in tree internal pages (0% ff) 1 Number of tree leaf pages 16322 Number of bytes free in tree leaf pages (0% ff) 0 Number of tree duplicate pages 0 Number of bytes free in tree duplicate pages (0% ff) 0 Number of tree overflow pages 0 Number of bytes free in tree overflow pages (0% ff) 0 Number of empty pages 0 Number of pages on the free list

# db4_stat -mh /var/lib/dovecot 260KB 832B Total cache size 1 Number of caches 1 Maximum number of caches 264KB Pool individual cache size 0 Maximum memory-mapped file size 0 Maximum open file descriptors 0 Maximum sequential buffer writes 0 Sleep after writing maximum sequential buffers 0 Requested pages mapped into the process' address space 302 Requested pages found in the cache (70%) 129 Requested pages not found in the cache 118 Pages created in the cache 53 Pages read into the cache 9 Pages written from the cache to the backing file 48 Clean pages forced from the cache 94 Dirty pages forced from the cache 0 Dirty pages written by trickle-sync thread 29 Current total page count 0 Current clean page count 29 Current dirty page count 37 Number of hash buckets used for page location 678 Total number of times hash chains searched for a page 13 The longest hash chain searched for a page 3792 Total number of hash chain entries checked for page 0 The number of hash bucket locks that required waiting (0%) 0 The maximum number of times any hash bucket lock was waited for (0%) 0 The number of region locks that required waiting (0%) 0 The number of buffers frozen 0 The number of buffers thawed 0 The number of frozen buffers freed 362 The number of page allocations 16784 The number of hash buckets examined during allocations 266 The maximum number of hash buckets examined for an allocation 769 The number of pages examined during allocations 13 The max number of pages examined for an allocation 0 Threads waited on page I/O Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 3 Requested pages found in the cache (75%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 3 Requested pages found in the cache (75%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 3 Requested pages found in the cache (75%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 1 Requested pages found in the cache (20%) 4 Requested pages not found in the cache 2 Pages created in the cache 3 Pages read into the cache 2 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 3 Requested pages found in the cache (60%) 2 Requested pages not found in the cache 2 Pages created in the cache 1 Pages read into the cache 1 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 4 Requested pages found in the cache (80%) 1 Requested pages not found in the cache 2 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: unknown 8192 Page size 0 Requested pages mapped into the process' address space 0 Requested pages found in the cache (0%) 1 Requested pages not found in the cache 1 Pages created in the cache 0 Pages read into the cache 0 Pages written from the cache to the backing file Pool File: /var/lib/dovecot/expire.db 16384 Page size 0 Requested pages mapped into the process' address space 159 Requested pages found in the cache (77%) 45 Requested pages not found in the cache 0 Pages created in the cache 45 Pages read into the cache 1 Pages written from the cache to the backing file

OpenBSD 4.4-current (GENERIC.MP) #585: Fri Jan 9 11:36:04 MST 2009 todd@sparc64.openbsd.org:/usr/src/sys/arch/sparc64/compile/GENERIC.MP real mem = 8589934592 (8192MB) avail mem = 8369053696 (7981MB) mainbus0 at root: Sun Fire V440 cpu0 at mainbus0: SUNW,UltraSPARC-IIIi (rev 2.4) @ 1062 MHz cpu0: physical 32K instruction (32 b/l), 64K data (32 b/l), 1024K external (64 b/l) cpu1 at mainbus0: SUNW,UltraSPARC-IIIi (rev 2.4) @ 1062 MHz cpu1: physical 32K instruction (32 b/l), 64K data (32 b/l), 1024K external (64 b/l) cpu2 at mainbus0: SUNW,UltraSPARC-IIIi (rev 2.4) @ 1062 MHz cpu2: physical 32K instruction (32 b/l), 64K data (32 b/l), 1024K external (64 b/l) cpu3 at mainbus0: SUNW,UltraSPARC-IIIi (rev 2.4) @ 1062 MHz cpu3: physical 32K instruction (32 b/l), 64K data (32 b/l), 1024K external (64 b/l) "memory-controller" at mainbus0 not configured "memory-controller" at mainbus0 not configured "memory-controller" at mainbus0 not configured "memory-controller" at mainbus0 not configured schizo0 at mainbus0: "Tomatillo", version 4, ign 700, bus A 0 to 0 schizo0: dvma map c0000000-dfffffff pci0 at schizo0 cas0 at pci0 dev 2 function 0 "Sun Cassini" rev 0x20: ivec 0x718, address 00:03:ba:66:75:d1 brgphy0 at cas0 phy 1: BCM5421 10/100/1000baseT PHY, rev. 1 "ppm" at mainbus0 not configured schizo1 at mainbus0: "Tomatillo", version 4, ign 740, bus B 0 to 0 schizo1: dvma map c0000000-dfffffff pci1 at schizo1 mpi0 at pci1 dev 2 function 0 "Symbios Logic 53c1030" rev 0x08: ivec 0x740 scsibus0 at mpi0: 16 targets, initiator 7 schizo2 at mainbus0: "Tomatillo", version 4, ign 780, bus A 0 to 0 schizo2: dvma map c0000000-dfffffff pci2 at schizo2 ebus0 at pci2 dev 7 function 0 "Acer Labs M1533 ISA" rev 0x00 "flashprom" at ebus0 addr 0-fffff, 290-290 not configured rtc0 at ebus0 addr 70-71: m5819p pcfiic0 at ebus0 addr 320-321 ivec 0x1b iic0 at pcfiic0 "SUNW,i2c-imax" at iic0 addr 0xb not configured "SUNW,i2c-imax" at iic0 addr 0xc not configured admtemp0 at iic0 addr 0x18: max1617, cannot get control register "pca9555" at iic0 addr 0x21 not configured "pca9555" at iic0 addr 0x22 not configured "pca9555" at iic0 addr 0x23 not configured "pca9555" at iic0 addr 0x24 not configured "adm1026" at iic0 addr 0x2e not configured admtemp1 at iic0 addr 0x32: max1617, cannot get control register admtemp2 at iic0 addr 0x40: max1617, cannot get control register admtemp3 at iic0 addr 0x48: max1617, cannot get control register lmtemp0 at iic0 addr 0x4e: lm75, fails to respond "spd" at iic0 addr 0x5b not configured "spd" at iic0 addr 0x5c not configured "spd" at iic0 addr 0x5d not configured "spd" at iic0 addr 0x5e not configured "spd" at iic0 addr 0x63 not configured "spd" at iic0 addr 0x64 not configured "spd" at iic0 addr 0x65 not configured "spd" at iic0 addr 0x66 not configured "spd" at iic0 addr 0x6b not configured "spd" at iic0 addr 0x6c not configured "spd" at iic0 addr 0x6d not configured "spd" at iic0 addr 0x6e not configured "spd" at iic0 addr 0x73 not configured "spd" at iic0 addr 0x74 not configured "spd" at iic0 addr 0x75 not configured "spd" at iic0 addr 0x76 not configured "ics951601" at iic0 addr 0x69 not configured power0 at ebus0 addr 800-82f ivec 0x1a com0 at ebus0 addr 3f8-3ff ivec 0x22: ns16550a, 16 byte fifo com0: console com1 at ebus0 addr 2e8-2ef ivec 0x22: ns16550a, 16 byte fifo "rmc-comm" at ebus0 addr 3e8-3ef ivec 0x22 not configured cas1 at pci2 dev 2 function 0 "NS Saturn" rev 0x30: ivec 0x78c, address 00:14:4f:1e:d6:b4 gentbi0 at cas1 phy 0: Generic ten-bit interface, rev. 0 "ATI Rage XL" rev 0x27 at pci2 dev 4 function 0 not configured alipm0 at pci2 dev 6 function 0 "Acer Labs M7101 Power" rev 0x00: 223KHz clock iic1 at alipm0 ohci0 at pci2 dev 10 function 0 "Acer Labs M5237 USB" rev 0x03: ivec 0x7a1, version 1.0, legacy support ohci1 at pci2 dev 11 function 0 "Acer Labs M5237 USB" rev 0x03: ivec 0x7a5, version 1.0, legacy support pciide0 at pci2 dev 13 function 0 "Acer Labs M5229 UDMA IDE" rev 0xc4: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide0: using ivec 0x7a6 for native-PCI interrupt atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets, initiator 7 cd0 at scsibus1 targ 0 lun 0: ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 pciide0: channel 1 disabled (no drives) usb0 at ohci0: USB revision 1.0 uhub0 at usb0 "Acer Labs OHCI root hub" rev 1.00/1.00 addr 1 usb1 at ohci1: USB revision 1.0 uhub1 at usb1 "Acer Labs OHCI root hub" rev 1.00/1.00 addr 1 "ppm" at mainbus0 not configured schizo3 at mainbus0: "Tomatillo", version 4, ign 7c0, bus B 0 to 0 schizo3: dvma map c0000000-dfffffff pci3 at schizo3 cas2 at pci3 dev 1 function 0 "Sun Cassini" rev 0x20: ivec 0x7dc, address 00:03:ba:66:75:d2 brgphy1 at cas2 phy 1: BCM5421 10/100/1000baseT PHY, rev. 1 mpi1 at pci3 dev 2 function 0 "Symbios Logic 53c1030" rev 0x07: ivec 0x7e3 scsibus2 at mpi1: 16 targets, initiator 7 sd0 at scsibus2 targ 0 lun 0: SCSI2 0/direct fixed sd0: 34732MB, 512 bytes/sec, 71131136 sec total sd1 at scsibus2 targ 2 lun 0: SCSI3 0/direct fixed sd1: 70136MB, 512 bytes/sec, 143638992 sec total sd2 at scsibus2 targ 3 lun 0: SCSI3 0/direct fixed sd2: 70136MB, 512 bytes/sec, 143638992 sec total mpi1: target 2 Sync at 160MHz width 16bit offset 127 QAS 1 DT 1 IU 1 mpi1: target 3 Sync at 160MHz width 16bit offset 127 QAS 1 DT 1 IU 1 mpi1: phys disk 1 Sync at 160MHz width 16bit offset 127 QAS 1 DT 1 IU 1 mpi1: phys disk 0 Sync at 160MHz width 16bit offset 127 QAS 1 DT 1 IU 1 mpi2 at pci3 dev 2 function 1 "Symbios Logic 53c1030" rev 0x07: ivec 0x7e4 scsibus3 at mpi2: 16 targets, initiator 7 "i2c" at mainbus0 not configured softraid0 at root scsibus4 at softraid0: 1 targets, initiator 1 sd3 at scsibus4 targ 0 lun 0: SCSI2 0/direct fixed sd3: 70136MB, 512 bytes/sec, 143638913 sec total bootpath: /pci@1f,700000/scsi@2,0/disk@0,0 root on sd0a swap on sd0b dump on sd0b