show_regs vs dump_stack in watchdog_timer_fn

Daniel Baluta daniel.baluta at gmail.com
Thu Jun 2 10:15:18 EDT 2011


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



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