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| Started by | Michael Ellerman <patch-notifications@ellerman.id.au> |
|---|---|
| First post | 2017-02-16 07:10 +0100 |
| Last post | 2017-02-16 07:10 +0100 |
| Articles | 1 — 1 participant |
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Re: powerpc/xmon: Fix data-breakpoint Michael Ellerman <patch-notifications@ellerman.id.au> - 2017-02-16 07:10 +0100
| From | Michael Ellerman <patch-notifications@ellerman.id.au> |
|---|---|
| Date | 2017-02-16 07:10 +0100 |
| Subject | Re: powerpc/xmon: Fix data-breakpoint |
| Message-ID | <tbnqq-283-17@gated-at.bofh.it> |
On Tue, 2016-11-22 at 09:25:59 UTC, Ravi Bangoria wrote: > Xmon data-breakpoint feature is broken. > > Whenever there is a watchpoint match occurs, hw_breakpoint_handler will > be called by do_break via notifier chains mechanism. If watchpoint is > registered by xmon, hw_breakpoint_handler won't find any associated > perf_event and returns immediately with NOTIFY_STOP. Similarly, do_break > also returns without notifying to xmon. > > Solve this by returning NOTIFY_DONE when hw_breakpoint_handler does not > find any perf_event associated with matched watchpoint. > > Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/c21a493a2b44650707d06741601894 cheers
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