100% cpu utilization

[David Collier-Brown]

Scott Moomaw wrote:
> __fcntl(0xd,0x23,0x80474c4) + c
> fcntl(0xd,0x23,0x80474c4,0x2c13c) + 1f
> tdb_brlock(0x81ec8f8,0xa8,0x2,0x23,0x0,0xdfa65b2b,0xd,0x23) + 68
> tdb_lock(0x81ec8f8,0x0,0x2,0x16,0x1,0x81e9088) + a2
> tdb_chainlock(0x81ec8f8,0x81e8f70,0xc,0x810d0e8,0x81e8f70,0xc) + 2a
> delete_fn(0x81ec8f8,0x81e8f70,0xc,0x81e8f7c,0x8a,0x804764c,0x2,0x83) + 3d
> tdb_traverse(0x81ec8f8,0x810d0d0,0x804764c,0x806e467) + 9b
> locking_end(0xdfa83000,0x80476c0,0x0,0x0,0x0,0x804768c,0x8047690,0x806da8b) + 47
> exit_server(0x8144c80,0x0,0x0,0x0,0x0,0x8047abc) + 160
> dflt_sig(0xf,0x0,0x80476c0) + 13
> sigacthandler() + 25
> dbg_mask(0x15,0x8047a3c,0x0,0x0,0x8047a34,0x5) + 2044f887
> sys_select(0xd,0x8047a3c,0x8047a34,0x80a12f9) + c7
> receive_message_or_smb(0x8210991,0x10040,0xea60,0x80a25e0) + 169
> smbd_process(0xdfbed1e8,0x8047b10,0x8047bf8,0x210,0xdfa0d67f,0xdfa0d6a3,0xdfbe13
> 7f,0x8047b10,0x8b,0x1,0x8047b48,0x806d94f,0x2,0x8047b54,0x8047b60,0x8144c30) + 11e
> main(0x2,0x8047b54,0x8047b60) + 6d9

	Ok Sambae, I don't know the tdb code, but fcntl 
	appears to be doing

        int fcntl(int fildes, int cmd, void *arg)

	Therefor fd 13 is being operated on with
        operation 35. This is F_SETLKW.

	What in the tdb would spin on this fcntl?. Looking
	at the source, it seem to be used in tdb_brlock,
	which does fcntl(tdb->fd,lck_type,&fl)
	and only uses F_SETLKW and F_SETLK.

	help?


--dave
-- 
David Collier-Brown,           | Always do right. This will gratify 
Americas Customer Engineering, | some people and astonish the rest.
SunPS Integration Services.    |                      -- Mark Twain
(905) 415-2849                 | davecb at canada.sun.com