panic on RELENG_5_4

[Marcus Grando]

Hi,

Panic on RELENG_5_4 (cvsup yesterday).

Waiting 5 seconds for SCSI devices to settle
panic: mutex Giant not owned at /usr/src/cam/cam_xpt.c:4825
cpuid = 0
KDB: enter: panic
[thread pid 35 tid 100031 ]
Stopped at      kdb_enter+0x2b: nop
db> where
Tracing pid 35 tid 100031 td 0xc22fb180
kdb_enter(c06e73f5) at kdb_enter+0x2b
panic(c06e68be,c06f7be6,c06c08da,12d9,c2608800) at panic+0x127
_mtx_assert(c074c660,1,c06c08da,12d9) at _mtx_assert+0x5c
xpt_done(c2608800,c23b6138,c23af000,c23af000,e4df8c54) at xpt_done+0x1d
amr_cam_complete_extcdb(c23b6138)at amr_cam_complete_extcdb+0c3
amr_complete(c23af000,0,54e3,0,d79200) at amr_complete+0x5e
amr_done(c23af000,c23af94c,0,c06dbc1d,1ae) at amr_done+0xb2
amr_pci_intr(c23af000) at amr_pci_intr+0x26
ithread_loop(c2306a00,e4df8d48,c2306a00,c0534f64,0) at ithread_loop+0x124
fork_exit(c0534f64,c2306a00,e4df8d48) at fork_exit+0xa4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xe4df8d7c, ebp = 0 ---
db>

I need more information, please ask.

Regards

-- 
Marcus Grando
Grupos Internet S/A
marcus(at)corp.grupos.com.br