XEN3_DOM0 panic on 64Bit system

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

        Hello,

when I tried to run a filesystem I/O benchmark (extracting the NetBSD 4.0
sources with "tar") my XEN3_DOM0 64Bit system paniced like this:

uvm_fault(0xffffffff80b37a20, 0xffffffff81400000, 1) -> e
kernel: page fault trap, code=0
Stopped in pid 325.1 (tar) at   netbsd:pmap_kenter_pa+0x163:    movq    
0(%rax),%rsi
pmap_kenter_pa() at netbsd:pmap_kenter_pa+0x163
uvm_pagermapin() at netbsd:uvm_pagermapin+0x189
genfs_getpages() at netbsd:genfs_getpages+0xc2f
VOP_GETPAGES() at netbsd:VOP_GETPAGES+0x42
ufs_balloc_range() at netbsd:ufs_balloc_range+0xed
ffs_write() at netbsd:ffs_write+0x7c3
VOP_WRITE() at netbsd:VOP_WRITE+0x2a
vn_write() at netbsd:vn_write+0xce
dofilewrite() at netbsd:dofilewrite+0x7c
sys_write() at netbsd:sys_write+0x72
syscall() at netbsd:syscall+0x98
ds          0x6
es          0
fs          0xffff
gs          0
rdi         0xffffa0004a983000
rsi         0xe67d5000
rbp         0xffffa000528b6700
rbx         0xe67d5
rdx         0x7f8000000000
rcx         0x6
rax         0xffffffff81400ea8
r8          0xffffffff80adeb80  cpu_info_primary
r9          0
r10         0xffffa000528b65d0
r11         0x7f8000000000
r12         0x3
r13         0x7fd000254c18
r14         0xffffa000528b6858
r15         0xffffa0004a983000
rip         0xffffffff804cdcc3  pmap_kenter_pa+0x163
cs          0xe030
rflags      0x10282
rsp         0xffffa000528b66d0
ss          0xe02b
netbsd:pmap_kenter_pa+0x163:    movq    0(%rax),%rsi

Here is the backtrace:

pmap_kenter_pa() at netbsd:pmap_kenter_pa+0x163
uvm_pagermapin() at netbsd:uvm_pagermapin+0x189
genfs_getpages() at netbsd:genfs_getpages+0xc2f
VOP_GETPAGES() at netbsd:VOP_GETPAGES+0x42
ufs_balloc_range() at netbsd:ufs_balloc_range+0xed
ffs_write() at netbsd:ffs_write+0x7c3
VOP_WRITE() at netbsd:VOP_WRITE+0x2a
vn_write() at netbsd:vn_write+0xce
dofilewrite() at netbsd:dofilewrite+0x7c
sys_write() at netbsd:sys_write+0x72
syscall() at netbsd:syscall+0x98

Has anybody else seen this?

        Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/