From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Petr Mladek <pmladek@suse.com>,
Joe Lawrence <joe.lawrence@redhat.com>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
Jiri Kosina <jikos@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
"live-patching@vger.kernel.org" <live-patching@vger.kernel.org>,
"Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>,
Miroslav Benes <mbenes@suse.cz>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v1 0/5] Implement livepatch on PPC32
Date: Tue, 14 Dec 2021 08:35:14 +0100 [thread overview]
Message-ID: <aac75717-a3ac-c0b4-3e79-dc6eb9c26d8c@csgroup.eu> (raw)
In-Reply-To: <76ce2dd7-691e-df73-727c-110713c07cda@csgroup.eu>
Le 14/12/2021 à 07:09, Christophe Leroy a écrit :
>
>
> Le 13/12/2021 à 20:46, Steven Rostedt a écrit :
>> On Mon, 13 Dec 2021 19:33:47 +0000
>> Christophe Leroy <christophe.leroy@csgroup.eu> wrote:
>>
>>> STill the same Oops, below
>>
>> Unfortunately, I don't have a PPC machine (32 nor 64 bit) to help debug
>> this.
>>
>>
>>> I will look more closely tomorrow.
>>
>> OK, thanks.
>>
>
> The Oops was due to ftrace_caller() setting the regs argument to NULL.
>
> After fixing that, I'm back into a situation where I get "Testing tracer
> function_graph: FAILED!"
>
> Will continue investigating.
>
trace_selftest_startup_function_graph() calls register_ftrace_direct()
which returns -ENOSUPP because powerpc doesn't select
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS.
Should TEST_DIRECT_TRAMP depend on CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS ?
Christophe
next prev parent reply other threads:[~2021-12-14 7:35 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-28 12:24 [PATCH v1 0/5] Implement livepatch on PPC32 Christophe Leroy
2021-10-28 12:24 ` [PATCH v1 1/5] livepatch: Fix build failure on 32 bits processors Christophe Leroy
2021-11-08 9:47 ` Petr Mladek
2021-10-28 12:24 ` [PATCH v1 2/5] powerpc/ftrace: No need to read LR from stack in _mcount() Christophe Leroy
2021-10-28 12:24 ` [PATCH v1 3/5] powerpc/ftrace: Add module_trampoline_target() for PPC32 Christophe Leroy
2021-10-28 12:24 ` [PATCH v1 4/5] powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32 Christophe Leroy
2021-10-28 12:24 ` [PATCH v1 5/5] powerpc/ftrace: Add support for livepatch to PPC32 Christophe Leroy
2021-11-08 10:01 ` Petr Mladek
2021-10-28 13:35 ` [PATCH v1 0/5] Implement livepatch on PPC32 Steven Rostedt
2021-12-13 14:39 ` Christophe Leroy
2021-12-13 17:15 ` Steven Rostedt
2021-12-13 17:30 ` Christophe Leroy
2021-12-13 17:33 ` Steven Rostedt
2021-12-13 17:50 ` Christophe Leroy
2021-12-13 18:54 ` Steven Rostedt
2021-12-13 19:33 ` Christophe Leroy
2021-12-13 19:46 ` Steven Rostedt
2021-12-14 6:09 ` Christophe Leroy
2021-12-14 7:35 ` Christophe Leroy [this message]
2021-12-14 14:01 ` Steven Rostedt
2021-12-18 16:12 ` Christophe Leroy
2021-12-14 14:25 ` Heiko Carstens
2021-12-14 15:12 ` Christophe Leroy
2021-11-01 14:50 ` Miroslav Benes
2021-11-24 22:34 ` Michael Ellerman
2021-11-25 5:49 ` Christophe Leroy
2021-12-07 13:26 ` Michael Ellerman
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