Back trace of fs lock behavior.

[Austin Gonyou <austin@xxxxxxxxxxxxxxx>]

This happened just after an FS was full, oracle stopped processing,
programs which rely on oracle's return were stopped, then I attempted to
tail one of their log files. This is from that tail.



0kdb>btp 11925

0xcefe2000 11925 2389 0 002 stop 0xcefe2360 tail

ESP             EIP             Function(args)

0xcefe3ecc      0xc01156b3      schedule+0x493(0x0, 0xcefe2000, 0x0, 0x0, 0x0)
                                        Kernel .text 0xc0100000  0xc0115220 
0xc0115770

0xcefe3f0c      0xc01c9ff6      lock_wait+0xa6(0xebf49c3c, 0x0)
                                        Kernel .text 0xc0100000 0xc01c9f50 
0xc01ca030

0xcefe3f38      0xc01ca0b8      mraccessf+0x48(0xebf49c1c, 0x0)
                                        Kernel .text 0xc0100000 0xc01ca070 
0xc01ca0e0

0xcefe3f4c      0xc01a149a      xfs_ilock+0x3a(0xebf49b70, 0x2, 0xf7320400,
0xebf49b70)
                                        Kernel .text 0xc0100000 0xc01a1460 
0xc01a14d0

0xcefe3f60      0xc01c6ef3      xfs_read+0xf3(0xebf49b88, 0xdab7c200, 
0xbfffceb0,
0x1000, 0dab7c220)
                                        Kernel .text 0xc0100000 0xc0106e00 
0xc01c6f50

0xcefe3f84      0xc01c25fb      linvfs_read+0x26(0xdab7c200, 0xbfffce60, 0x1000,
0xdab7c220, 0xcefe2000)
                                        Kernel .text 0xc0100000 0xnnnnnnnn 
0xnnnnnnnn 0xnnnnnnnn

0xcefe3fa0      0xc0140036      sys_read+0x96(0x3, 0xbfffce60, 0x1000, 
0x40016b4c,
0xbffff094)
                                        Kernel .text 0xc0100000 0xc013ffa0 
0xc01400be

0xcefe3fc4      0xc0108c33      system_call+0x33
                                        Kernel .text 0xc0100000 0xc0108c00 
0xc0108c38



-- 
Austin Gonyou <austin@xxxxxxxxxxxxxxx>
Coremetrics, Inc.