Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-21 Thread Michael Ellerman
Jann Horn writes: > +cc x86 folks > > On Thu, Oct 18, 2018 at 1:18 PM Christophe LEROY > wrote: >> Le 18/10/2018 à 13:12, Jann Horn a écrit : >> > On Thu, Oct 18, 2018 at 11:28 AM Christophe LEROY >> > wrote: >> >> Le 05/10/2018 à 15:21, Michael Ellerman a écrit : >> >>> Recently we implemented

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-18 Thread Michael Ellerman
Christophe LEROY writes: > Le 05/10/2018 à 15:21, Michael Ellerman a écrit : >> Recently we implemented show_user_instructions() which dumps the code >> around the NIP when a user space process dies with an unhandled >> signal. This was modelled on the x86 code, and we even went so far as >> to im

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-18 Thread Christophe LEROY
Le 18/10/2018 à 13:12, Jann Horn a écrit : On Thu, Oct 18, 2018 at 11:28 AM Christophe LEROY wrote: Le 05/10/2018 à 15:21, Michael Ellerman a écrit : Recently we implemented show_user_instructions() which dumps the code around the NIP when a user space process dies with an unhandled signal.

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-18 Thread Christophe LEROY
Le 05/10/2018 à 15:21, Michael Ellerman a écrit : Recently we implemented show_user_instructions() which dumps the code around the NIP when a user space process dies with an unhandled signal. This was modelled on the x86 code, and we even went so far as to implement the exact same bug, namely

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-08 Thread Michael Ellerman
Jann Horn writes: > On Fri, Oct 5, 2018 at 3:21 PM Michael Ellerman wrote: >> Recently we implemented show_user_instructions() which dumps the code >> around the NIP when a user space process dies with an unhandled >> signal. This was modelled on the x86 code, and we even went so far as >> to imp

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-08 Thread Michael Ellerman
Christophe LEROY writes: > Le 05/10/2018 à 15:21, Michael Ellerman a écrit : >> Recently we implemented show_user_instructions() which dumps the code ... >> diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c >> index 913c5725cdb2..bb6ac471a784 100644 >> --- a/arch/powerpc/k

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-05 Thread Jann Horn
On Fri, Oct 5, 2018 at 3:21 PM Michael Ellerman wrote: > Recently we implemented show_user_instructions() which dumps the code > around the NIP when a user space process dies with an unhandled > signal. This was modelled on the x86 code, and we even went so far as > to implement the exact same bug

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-05 Thread Murilo Opsfelder Araujo
On Fri, Oct 05, 2018 at 11:21:23PM +1000, Michael Ellerman wrote: > Recently we implemented show_user_instructions() which dumps the code > around the NIP when a user space process dies with an unhandled > signal. This was modelled on the x86 code, and we even went so far as > to implement the exac

Re: [PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-05 Thread Christophe LEROY
Le 05/10/2018 à 15:21, Michael Ellerman a écrit : Recently we implemented show_user_instructions() which dumps the code around the NIP when a user space process dies with an unhandled signal. This was modelled on the x86 code, and we even went so far as to implement the exact same bug, namely

[PATCH] powerpc: Don't print kernel instructions in show_user_instructions()

2018-10-05 Thread Michael Ellerman
Recently we implemented show_user_instructions() which dumps the code around the NIP when a user space process dies with an unhandled signal. This was modelled on the x86 code, and we even went so far as to implement the exact same bug, namely that if the user process crashed with its NIP pointing