dump reports wrong swapsize?

[Tilman Linneweh]

Hi, 

Today I got the following, unfortunately not yet reproducable panic:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x80
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xffffffff80294731
stack pointer           = 0x10:0xffffffffac082750
frame pointer           = 0x10:0xffffffffac0827e0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 979 (xmms)
kernel: type 12 trap, code=0
Stopped at      elf64_puthdr+0x10d:     incl    %ecx
db> where
elf64_puthdr() at elf64_puthdr+0x10d
elf64_coredump() at elf64_coredump+0x64
coredump() at coredump+0x5ff
sigexit() at sigexit+0x8f
kse_thr_interrupt() at kse_thr_interrupt+0x306
syscall() at syscall+0x4d6
Xfast_syscall() at Xfast_syscall+0xa8
--- syscall (382, FreeBSD ELF64, kse_thr_interrupt), rip = 0x2011602ec, rsp = 0x60bf18, rbp = 0xa ---


When I tried to call doadump i got:
db> call doadump
Dumping 1023 MB

Dump failed. Partition too small.
0x23

although 

mchammer# swapinfo
Device          1K-blocks     Used    Avail Capacity
/dev/ad4s1b       2070336        0  2070336     0%

Anyone got an idea why?
regards
tilman