show_regs vs dump_stack in watchdog_timer_fn

[Daniel Baluta]

Hello,

Why the stack isn't always dumped in watchdog_timer_fn ([1])?

Registers content is useful, but without a stack trace it's very
hard to find the task which caused system softlockup.


thanks,
Daniel.

[1] http://lxr.linux.no/linux+v2.6.39/kernel/watchdog.c#L292