[GIT PULL] please pull one bug fix for v4.4

[Jeff Merkey]

Hi Linus,

The following changes since commit 527e9316f8ec44bd53d90fb9f611fa7ffff52bb9:

  Linux 4.4-rc4 (2015-12-06 15:43:12 -0800)

are available in the git repository at:

  https://github.com/jeffmerkey/linux/tree/fixes-for-linus

hw_breakpoint.c:  fix INT1 recursion and system hard hang.

Fixes a 13 year old bug in the int1 handler path that results in a
hard system lockup is someone triggers an int1 breakpoint in the
hardware and no perf event has been registered.   Prints a log message
and sets the resume flag in x86 and x86_64 to prevent the system from
locking up and gracefully prints a rate limited message.
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