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

[PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint · Ravi Bangoria <hidden> · 2020-03-09
[PATCH 01/15] powerpc/watchpoint: Rename current DAWR macros · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 01/15] powerpc/watchpoint: Rename current DAWR macros · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 01/15] powerpc/watchpoint: Rename current DAWR macros · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 02/15] powerpc/watchpoint: Add SPRN macros for second DAWR · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 02/15] powerpc/watchpoint: Add SPRN macros for second DAWR · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 02/15] powerpc/watchpoint: Add SPRN macros for second DAWR · Segher Boessenkool <hidden> · 2020-03-18
[PATCH 03/15] powerpc/watchpoint: Introduce function to get nr watchpoints dynamically · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 03/15] powerpc/watchpoint: Introduce function to get nr watchpoints dynamically · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 03/15] powerpc/watchpoint: Introduce function to get nr watchpoints dynamically · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 05/15] powerpc/watchpoint: Provide DAWR number to set_dawr · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 05/15] powerpc/watchpoint: Provide DAWR number to set_dawr · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 05/15] powerpc/watchpoint: Provide DAWR number to set_dawr · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 06/15] powerpc/watchpoint: Provide DAWR number to __set_breakpoint · Ravi Bangoria <hidden> · 2020-03-09
[PATCH 07/15] powerpc/watchpoint: Get watchpoint count dynamically while disabling them · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 07/15] powerpc/watchpoint: Get watchpoint count dynamically while disabling them · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 07/15] powerpc/watchpoint: Get watchpoint count dynamically while disabling them · Ravi Bangoria <hidden> · 2020-03-18
Re: [PATCH 07/15] powerpc/watchpoint: Get watchpoint count dynamically while disabling them · Ravi Bangoria <hidden> · 2020-03-26
[PATCH 08/15] powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 08/15] powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 08/15] powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 09/15] powerpc/watchpoint: Convert thread_struct->hw_brk to an array · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 09/15] powerpc/watchpoint: Convert thread_struct->hw_brk to an array · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 09/15] powerpc/watchpoint: Convert thread_struct->hw_brk to an array · Ravi Bangoria <hidden> · 2020-03-18
Re: [PATCH 09/15] powerpc/watchpoint: Convert thread_struct->hw_brk to an array · Christophe Leroy <hidden> · 2020-03-18
Re: [PATCH 09/15] powerpc/watchpoint: Convert thread_struct->hw_brk to an array · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 10/15] powerpc/watchpoint: Use loop for thread_struct->ptrace_bps · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 10/15] powerpc/watchpoint: Use loop for thread_struct->ptrace_bps · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 10/15] powerpc/watchpoint: Use loop for thread_struct->ptrace_bps · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 11/15] powerpc/watchpoint: Introduce is_ptrace_bp() function · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 11/15] powerpc/watchpoint: Introduce is_ptrace_bp() function · Christophe Leroy <hidden> · 2020-03-17
[PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Michael Ellerman <mpe@ellerman.id.au> · 2020-03-18
Re: [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Christophe Leroy <hidden> · 2020-03-18
Re: [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Segher Boessenkool <hidden> · 2020-03-18
Re: [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Michael Ellerman <mpe@ellerman.id.au> · 2020-03-18
Re: [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 13/15] powerpc/watchpoint: Don't allow concurrent perf and ptrace events · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 13/15] powerpc/watchpoint: Don't allow concurrent perf and ptrace events · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 13/15] powerpc/watchpoint: Don't allow concurrent perf and ptrace events · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting · Ravi Bangoria <hidden> · 2020-03-18
Re: [PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting · Christophe Leroy <hidden> · 2020-03-18
[PATCH 15/15] powerpc/watchpoint/xmon: Support 2nd dawr · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 15/15] powerpc/watchpoint/xmon: Support 2nd dawr · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 15/15] powerpc/watchpoint/xmon: Support 2nd dawr · Ravi Bangoria <hidden> · 2020-03-18
[PATCH 04/15] powerpc/watchpoint/ptrace: Return actual num of available watchpoints · Ravi Bangoria <hidden> · 2020-03-09
Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint · Christophe Leroy <hidden> · 2020-03-16
Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint · Segher Boessenkool <hidden> · 2020-03-16
Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint · Christophe Leroy <hidden> · 2020-03-17
Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint · Ravi Bangoria <hidden> · 2020-03-18
Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint · Ravi Bangoria <hidden> · 2020-03-23

From: Ravi Bangoria <hidden>
Date: 2020-03-18 12:38:29
Also in: lkml


On 3/17/20 4:40 PM, Christophe Leroy wrote:


Le 09/03/2020 à 09:58, Ravi Bangoria a écrit :

quoted

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

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