linux-kernel - Re: [PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting

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Message-Id: <56ee9190-2363-efbe-fd94-0b42194e6586@linux.ibm.com>
Date:   Wed, 18 Mar 2020 18:07:37 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
To:     Christophe Leroy <christophe.leroy@....fr>
Cc:     mpe@...erman.id.au, mikey@...ling.org, apopple@...ux.ibm.com,
        paulus@...ba.org, npiggin@...il.com,
        naveen.n.rao@...ux.vnet.ibm.com, peterz@...radead.org,
        jolsa@...nel.org, oleg@...hat.com, fweisbec@...il.com,
        mingo@...nel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
Subject: Re: [PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint
 overwriting



On 3/17/20 4:40 PM, Christophe Leroy wrote:
> 
> 
> Le 09/03/2020 à 09:58, Ravi Bangoria a écrit :
>> Xmon allows overwriting breakpoints because it's supported by only
>> one dawr. But with multiple dawrs, overwriting becomes ambiguous
>> or unnecessary complicated. So let's not allow it.
> 
> Could we drop this completely (I mean the functionnality, not the patch).

Not sure I follow. Isn't the same thing I'm doing?

-Ravi