2015-12-13 23:51:53

by Jeff Merkey

[permalink] [raw]
Subject: [GIT PULL] please pull one bug fix for v4.4

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.


2015-12-14 01:25:01

by Jeff Merkey

[permalink] [raw]
Subject: Re: [GIT PULL] please pull one bug fix for v4.4

Raw commit address for the diff is:

https://github.com/jeffmerkey/linux/commit/e1d3c76814c839a835286843f0bca33b0c5d0dd8.diff


On 12/13/15, Jeff Merkey <[email protected]> wrote:
> 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.
>