umount /mnt2: Cannot allocate memory (strange bug)

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umount /mnt2: Cannot allocate memory (strange bug)

bofh-6
Is this a bug, or just me running out of ram?  Look at the multiple
mount attempts at the bottom - 3rd one works?!  Why?  Should I
sendbug?  This box is not on the network yet, which is why I'm asking.

dmesg at the bottom

# uname -a
OpenBSD newurd.spidernet.to 4.4 GENERIC#1021 i386

# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/wd0a     72.4G    6.8G   62.0G    10%    /
/dev/sd0a      186G    159G   17.7G    90%    /mnt

# newfs /dev/rsd1a  [output munched]
# mkdir /mnt2;
# mount /dev/sd1a /mnt2
# rsync -av /mnt/* /mnt2/  [output munched]
# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/wd0a     72.4G    6.8G   62.0G    10%    /
/dev/sd0a      186G    159G   17.7G    90%    /mnt
/dev/sd1a      229G    166G   51.7G    76%    /mnt2
# umount /mnt2
umount: /mnt2: Cannot allocate memory
# sync
# w
10:14AM  up 15 days, 20:58, 1 user, load averages: 0.21, 0.15, 0.10
USER    TTY FROM              LOGIN@  IDLE WHAT
root     p4 apple2           10:12AM     0 w
# top
# lsof /mnt2
# umount /mnt2
# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/wd0a     72.4G    6.8G   62.0G    10%    /
/dev/sd0a      186G    159G   17.7G    90%    /mnt
# fsck /dev/sd1a
** /dev/rsd1a
** File system is clean; not checking
# fsck -f /dev/sd1a
** /dev/rsd1a
** File system is already clean
** Last Mounted on /mnt2
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
450839 files, 87042327 used, 33123735 free (7639 frags, 4139512
blocks, 0.0% fragmentation)
# mount /dev/sd1a /mnt2
mount_ffs: /dev/sd1a on /mnt2: Cannot allocate memory
# top
# mount /dev/sd1a /mnt2
mount_ffs: /dev/sd1a on /mnt2: Cannot allocate memory
# mount /dev/sd1a /mnt2

[Why did it work on the 3rd attempt??!]

# dmesg
OpenBSD 4.4 (GENERIC) #1021: Tue Aug 12 17:16:55 MDT 2008
    [hidden email]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: VIA Samuel 2 ("CentaurHauls" 686-class) 797 MHz
cpu0: FPU,DE,TSC,MSR,MTRR,PGE,MMX
real mem  = 1039691776 (991MB)
avail mem = 996839424 (950MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 08/19/04, BIOS32 rev. 0 @
0xfdad0, SMBIOS rev. 2.3 @ 0xf0630 (24 entries)
bios0: vendor American Megatrends Inc. version "Version 07.00T" date 04/02/01
bios0: ECS M789CG
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
acpi at bios0 function 0x0 not configured
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf79a0/144 (7 entries)
pcibios0: PCI Interrupt Router at 000:17:0 ("VIA VT8235 ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0x7e00 0xc8000/0x3000!
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "VIA VT8623 PCI" rev 0x00
ppb0 at pci0 dev 1 function 0 "VIA VT8633 AGP" rev 0x00
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "VIA CLE266" rev 0x03
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
agp0 at vga1: v2, aperture at 0xe0000000, size 0x10000000
drm at vga1 unsupported
uhci0 at pci0 dev 16 function 0 "VIA VT83C572 USB" rev 0x80: irq 11
uhci1 at pci0 dev 16 function 1 "VIA VT83C572 USB" rev 0x80: irq 5
uhci2 at pci0 dev 16 function 2 "VIA VT83C572 USB" rev 0x80: irq 12
ehci0 at pci0 dev 16 function 3 "VIA VT6202 USB" rev 0x82: irq 10
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "VIA EHCI root hub" rev 2.00/1.00 addr 1
viapm0 at pci0 dev 17 function 0 "VIA VT8235 ISA" rev 0x00
iic0 at viapm0
spdmem0 at iic0 addr 0x50: 1GB DDR SDRAM non-parity PC2100CL2.5
pciide0 at pci0 dev 17 function 1 "VIA VT82C571 IDE" rev 0x06: ATA133,
channel 0 configured to compatibility, channel 1 configured to
compatibility
wd0 at pciide0 channel 0 drive 0: <WDC WD800JB-00JJA0>
wd0: 16-sector PIO, LBA, 76319MB, 156301488 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
pciide0: channel 1 disabled (no drives)
auvia0 at pci0 dev 17 function 5 "VIA VT8233 AC97" rev 0x50: irq 12
ac97: codec id 0x434d4983 (C-Media Electronics CMI9761A+)
audio0 at auvia0
vr0 at pci0 dev 18 function 0 "VIA RhineII-2" rev 0x74: irq 11,
address 00:1b:b9:9f:10:7b
ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface, rev. 10: OUI
0x004063, model 0x0032
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 "VIA UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 "VIA UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 "VIA UHCI root hub" rev 1.00/1.00 addr 1
isa0 at mainbus0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
it0 at isa0 port 0x2e/2: IT8705F rev 0x03, EC port 0x290
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
biomask ff6d netmask ff6d ttymask ffff
softraid0 at root
root on wd0a swap on wd0b dump on wd0b
WARNING: / was not properly unmounted
umass0 at uhub0 port 2 configuration 1 interface 0 "JMicron USB to
ATA/ATAPI Bridge" rev 2.00/1.00 addr 2
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <Maxtor 6, Y200P0, 1BW0> SCSI2 0/direct fixed
sd0: 194481MB, 24792 cyl, 255 head, 63 sec, 512 bytes/sec, 398297088 sec total
umass1 at uhub0 port 5 configuration 1 interface 0 "Seagate FreeAgent
Go" rev 2.00/0.00 addr 3
umass1: using SCSI over Bulk-Only
scsibus1 at umass1: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <Seagate, FreeAgent Go, 100F> SCSI2 0/direct fixed
sd1: 238475MB, 30401 cyl, 255 head, 63 sec, 512 bytes/sec, 488397168 sec total
sd1 detached
scsibus1 detached
umass1 detached
umass1 at uhub0 port 5 configuration 1 interface 0 "Seagate FreeAgent
Go" rev 2.00/0.00 addr 3
umass1: using SCSI over Bulk-Only
scsibus1 at umass1: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <Seagate, FreeAgent Go, 100F> SCSI2 0/direct fixed
sd1: 238475MB, 30401 cyl, 255 head, 63 sec, 512 bytes/sec, 488397168 sec total



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