Sleeping on "biord" with the following non-sleepable locks held:

Got this warning running an ibcs2_coff binary on today's -current:

Sleeping on "biord" with the following non-sleepable locks held:
exclusive sleep mutex system map r = 0 (0xc103b060) locked _at_ vm/vm_map.c:2869
Stack backtrace:
backtrace(c096ad7c,edca55d0,c0882f4b,1,c096b340) at backtrace+0x17
witness_warn(5,c096b340,c087ce7a,c088355f,edca5600) at witness_warn+0x1c5
msleep(d3c2d3e8,c096b340,4c,c088355f,0) at msleep+0x62
bwait(d3c2d3e8,4c,c088355f,20000000,edca56fc) at bwait+0x70
bufwait(d3c2d3e8,0,ffffffff,4000,0) at bufwait+0x38
ufs_bmaparray(c7ed8514,48,0,edca5720,0) at ufs_bmaparray+0x638
ufs_bmap(edca578c,edca57b8,c07c252f,edca578c,0) at ufs_bmap+0x69
ufs_vnoperate(edca578c,0,c089332d,f4,edca5774) at ufs_vnoperate+0x18
vnode_pager_haspage(c7ef3084,122,0,edca5800,edca57fc) at vnode_pager_haspage+0x1cf
vm_fault_additional_pages(c2aa77f0,0,0,edca58c4,edca5888) at vm_fault_additional_pages+0xa3 
vm_fault(c103b000,edcc8000,1,0,c7ef5540) at vm_fault+0x850
trap_pfault(edca5990,0,edcc8000,0,edcc8000) at trap_pfault+0x172
trap(c1030018,c7ef0010,120010,434000,edcc8000) at trap+0x353
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc0809bdc, esp = 0xedca59d0, ebp = 0xedca5a20 ---
slow_copyout(c7c51674,c7ed8514,ee3b4,4003b4,5d074) at slow_copyout+0x4
exec_coff_imgact(edca5b8c,0,c0879fb3,148,c0946320) at exec_coff_imgact+0x3f5
kern_execve(c7ef5540,8107204,8107230,810b004,0) at kern_execve+0x3cc
execve(c7ef5540,edca5d14,c,7,3) at execve+0x30
syscall(2f,2f,2f,8107204,8107230) at syscall+0x2a0
Xint0x80_syscall() at Xint0x80_syscall+0x1d
--- syscall (59), eip = 0x807c22f, esp = 0xbfbfc91c, ebp = 0xbfbfc938 ---



-- 
	Dan Nelson
	dnelson_at_allantgroup.com