From: David Long <dave.long@linaro.org>
To: William Cohen <wcohen@redhat.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Steve Capper <steve.capper@linaro.org>
Cc: "Jon Medhurst (Tixy)" <tixy@linaro.org>,
Russell King <linux@arm.linux.org.uk>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Sandeepa Prabhu <sandeepa.prabhu@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
David Miller <davem@davemloft.net>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 0/5] ARM64: Add kernel probes(Kprobes) support
Date: Wed, 03 Dec 2014 21:48:19 -0500 [thread overview]
Message-ID: <547FCB73.1010707@linaro.org> (raw)
In-Reply-To: <547FB5DD.901@redhat.com>
On 12/03/14 20:16, William Cohen wrote:
[...]
>
> The perf issue seems to be independent and can be reproduced without using any kprobe support. I need to get a simple reproducer and mention it on the linux-perf-user list.
>
> -Will
>
OK, my confusion came from all the different things perf can use. I
have not yet been able to reproduce the "perf stat" failure, but I do
see the failure with Steve's example using tracepoints. I had thought
that was using kprobes, but apparently it just uses tracepoints. These
look like two different failures to me: One related to tracepoints, and
one in the PMU driver.
Since this seems unrelated to kprobes I don't plan on pursuing these
particular problems.
-dl
WARNING: multiple messages have this Message-ID (diff)
From: dave.long@linaro.org (David Long)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/5] ARM64: Add kernel probes(Kprobes) support
Date: Wed, 03 Dec 2014 21:48:19 -0500 [thread overview]
Message-ID: <547FCB73.1010707@linaro.org> (raw)
In-Reply-To: <547FB5DD.901@redhat.com>
On 12/03/14 20:16, William Cohen wrote:
[...]
>
> The perf issue seems to be independent and can be reproduced without using any kprobe support. I need to get a simple reproducer and mention it on the linux-perf-user list.
>
> -Will
>
OK, my confusion came from all the different things perf can use. I
have not yet been able to reproduce the "perf stat" failure, but I do
see the failure with Steve's example using tracepoints. I had thought
that was using kprobes, but apparently it just uses tracepoints. These
look like two different failures to me: One related to tracepoints, and
one in the PMU driver.
Since this seems unrelated to kprobes I don't plan on pursuing these
particular problems.
-dl
next prev parent reply other threads:[~2014-12-04 2:48 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-18 6:32 [PATCH v3 0/5] ARM64: Add kernel probes(Kprobes) support David Long
2014-11-18 6:32 ` David Long
2014-11-18 6:32 ` [PATCH v3 1/5] arm64: Kprobes with single stepping support David Long
2014-11-18 6:32 ` David Long
2014-11-18 13:28 ` Jon Medhurst (Tixy)
2014-11-18 13:28 ` Jon Medhurst (Tixy)
2014-11-21 4:28 ` David Long
2014-11-21 4:28 ` David Long
2014-11-18 14:38 ` William Cohen
2014-11-18 14:38 ` William Cohen
2014-11-18 14:39 ` William Cohen
2014-11-18 14:39 ` William Cohen
2014-11-18 14:56 ` Will Deacon
2014-11-18 14:56 ` Will Deacon
2014-11-19 11:21 ` Sandeepa Prabhu
2014-11-19 11:21 ` Sandeepa Prabhu
2014-11-19 11:25 ` Will Deacon
2014-11-19 11:25 ` Will Deacon
2014-11-19 14:55 ` David Long
2014-11-19 14:55 ` David Long
2014-11-20 5:10 ` Sandeepa Prabhu
2014-11-20 5:10 ` Sandeepa Prabhu
2014-11-26 6:46 ` David Long
2014-11-26 6:46 ` David Long
2014-11-26 10:09 ` Will Deacon
2014-11-26 10:09 ` Will Deacon
2014-12-22 10:10 ` Pratyush Anand
2014-12-22 10:10 ` Pratyush Anand
2014-11-18 6:32 ` [PATCH v3 2/5] arm64: Kprobes instruction simulation support David Long
2014-11-18 6:32 ` David Long
2014-11-18 14:43 ` William Cohen
2014-11-18 14:43 ` William Cohen
2014-11-18 6:32 ` [PATCH v3 3/5] arm64: Add kernel return probes support(kretprobes) David Long
2014-11-18 6:32 ` David Long
2014-11-18 14:50 ` William Cohen
2014-11-18 14:50 ` William Cohen
2014-11-18 6:32 ` [PATCH v3 4/5] kprobes: Add arm64 case in kprobe example module David Long
2014-11-18 6:32 ` David Long
2014-11-18 6:32 ` [PATCH v3 5/5] arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature David Long
2014-11-18 6:32 ` David Long
2014-11-18 14:52 ` Will Deacon
2014-11-18 14:52 ` Will Deacon
2014-11-20 7:20 ` Masami Hiramatsu
2014-11-20 7:20 ` Masami Hiramatsu
2014-11-21 6:16 ` David Long
2014-11-21 6:16 ` David Long
2014-11-20 15:02 ` [PATCH v3 0/5] ARM64: Add kernel probes(Kprobes) support Steve Capper
2014-11-20 15:02 ` Steve Capper
2014-11-26 8:33 ` Masami Hiramatsu
2014-11-26 8:33 ` Masami Hiramatsu
2014-11-26 10:03 ` Steve Capper
2014-11-26 10:03 ` Steve Capper
2014-11-26 17:46 ` David Long
2014-11-26 17:46 ` David Long
2014-11-26 18:59 ` Steve Capper
2014-11-26 18:59 ` Steve Capper
2014-11-27 6:07 ` Masami Hiramatsu
2014-11-27 6:07 ` Masami Hiramatsu
2014-11-28 16:01 ` Steve Capper
2014-11-28 16:01 ` Steve Capper
2014-12-01 9:37 ` Re: " Masami Hiramatsu
2014-12-01 9:37 ` Masami Hiramatsu
2014-12-02 19:27 ` William Cohen
2014-12-02 19:27 ` William Cohen
2014-12-02 20:00 ` William Cohen
2014-12-02 20:00 ` William Cohen
2014-12-03 3:36 ` Masami Hiramatsu
2014-12-03 3:36 ` Masami Hiramatsu
2014-12-03 14:54 ` William Cohen
2014-12-03 14:54 ` William Cohen
2014-12-03 22:54 ` David Long
2014-12-03 22:54 ` David Long
2014-12-04 0:02 ` David Long
2014-12-04 0:02 ` David Long
2014-12-04 1:16 ` William Cohen
2014-12-04 1:16 ` William Cohen
2014-12-04 2:48 ` David Long [this message]
2014-12-04 2:48 ` David Long
2014-12-04 10:21 ` Steve Capper
2014-12-04 10:21 ` Steve Capper
2014-12-04 10:43 ` Masami Hiramatsu
2014-12-04 10:43 ` Masami Hiramatsu
2014-12-04 11:29 ` Steve Capper
2014-12-04 11:29 ` Steve Capper
2014-12-04 11:53 ` Masami Hiramatsu
2014-12-04 11:53 ` Masami Hiramatsu
2014-12-09 13:33 ` Steve Capper
2014-12-09 13:33 ` Steve Capper
2014-12-09 14:27 ` David Long
2014-12-09 14:27 ` David Long
2014-12-10 16:38 ` Steve Capper
2014-12-10 16:38 ` Steve Capper
2014-12-12 22:42 ` David Long
2014-12-12 22:42 ` David Long
2014-12-12 23:10 ` Steve Capper
2014-12-12 23:10 ` Steve Capper
2014-12-15 5:58 ` Masami Hiramatsu
2014-12-15 5:58 ` Masami Hiramatsu
2014-12-15 6:29 ` David Long
2014-12-15 6:29 ` David Long
2014-12-05 5:08 ` William Cohen
2014-12-05 5:08 ` William Cohen
2014-11-27 5:13 ` Masami Hiramatsu
2014-11-27 5:13 ` Masami Hiramatsu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=547FCB73.1010707@linaro.org \
--to=dave.long@linaro.org \
--cc=ananth@in.ibm.com \
--cc=anil.s.keshavamurthy@intel.com \
--cc=catalin.marinas@arm.com \
--cc=davem@davemloft.net \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=masami.hiramatsu.pt@hitachi.com \
--cc=sandeepa.prabhu@linaro.org \
--cc=steve.capper@linaro.org \
--cc=tixy@linaro.org \
--cc=wcohen@redhat.com \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.