My SRX240 device with junos version 10.4R3.4 is strucked at prompt db>. Some of boot messages are shown as below. Please help to fix.
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <ST ST72682 2.10> Removable Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 1000MB (2048000 512 byte sectors: 64H 32S/T 1000C)
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
SMP: AP CPU #3 Launched!
Trying to create bootdev, rootpartition da0s1a
Trying to mount root from ufs:/dev/da0s1a
WARNING: / was not properly dismounted
Interrupt storm detected on "swi0:"; throttling interrupt source
Ignoring watchdog timeout during boot/reboot
Attaching /cf/packages/junos via /dev/mdctl...
Mounted junos package on /dev/md0...
Ignoring watchdog timeout during boot/reboot
Ignoring watchdog timeout during boot/reboot
Media check on da0
Ignoring watchdog timeout during boot/reboot
Ignoring watchdog timeout during boot/reboot
Ignoring watchdog timeout during boot/reboot
Ignoring watchdog timeout during boot/reboot
Ignoring watchdog timeout during boot/reboot
panic: Hardware watchdog timeout NMI
cpuid = 0
KDB: stack backtrace:
SP 0x0: not in kernel
uart_z8530_class+0x0 (0,0,0,0) ra 0 sz 0
pid 24, process: swi7: clock
###Entering boot mastership relinquish phase
KDB: enter: panic
[thread pid 24 tid 100023 ]
Stopped at breakpoint+0x4: jr ra
db>