This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1117548
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1117548
Title:
perf: Add support for hardware breakpoint address masks
Status in amd:
Incomplete
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
The following patchset adds address masks to existing perf hardware
breakpoint mechanism to allow trapping on an address range (currently
only single address) on supported architectures.
perf uapi is updated, x86 AMD implementation (for AMD Family 16h and
beyond) is provided, and perf tool has been extended to do:
$ perf stat -e mem:0x1000:w:0xf a.out
^^^
"don't care" bit mask
which will count writes to [0x1000 ~ 0x1010)
This patch is upstream but not accepted yet:
https://lkml.org/lkml/2012/12/12/261
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