* [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO
@ 2015-05-27 8:37 Masami Hiramatsu
2015-05-27 8:37 ` [PATCH perf/core 2/2] [BUGFIX] perf probe: Fix an error when deleting probes successfully Masami Hiramatsu
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Masami Hiramatsu @ 2015-05-27 8:37 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: Peter Zijlstra, Richard Weinberger, Linux Kernel Mailing List,
David Ahern, namhyung, Jiri Olsa, Ingo Molnar
Show the reason of error when dso__load* failed. This shows
when user gives wrong kernel image or wrong path.
Without this, perf probe shows an obscure message.
----
$ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
Failed to find path of kernel module.
Error: Failed to show lines.
----
With this, perf shows appropriate error message.
----
$ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
Failed to find the path for kernel: Mismatching build id
Error: Failed to show lines.
----
And
----
$ perf probe -k /non-exist/kernel/vmlinux -L vfs_read
Failed to find the path for kernel: No such file or directory
Error: Failed to show lines.
----
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
---
tools/perf/util/probe-event.c | 47 +++++++++++++++++++++--------------------
tools/perf/util/probe-event.h | 3 ---
2 files changed, 24 insertions(+), 26 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 0922565..f5be411 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -200,11 +200,12 @@ static void put_target_map(struct map *map, bool user)
}
-static struct dso *kernel_get_module_dso(const char *module)
+static int kernel_get_module_dso(const char *module, struct dso **pdso)
{
struct dso *dso;
struct map *map;
const char *vmlinux_name;
+ int ret = 0;
if (module) {
list_for_each_entry(dso, &host_machine->kernel_dsos.head,
@@ -214,30 +215,21 @@ static struct dso *kernel_get_module_dso(const char *module)
goto found;
}
pr_debug("Failed to find module %s.\n", module);
- return NULL;
+ return -ENOENT;
}
map = host_machine->vmlinux_maps[MAP__FUNCTION];
dso = map->dso;
vmlinux_name = symbol_conf.vmlinux_name;
- if (vmlinux_name) {
- if (dso__load_vmlinux(dso, map, vmlinux_name, false, NULL) <= 0)
- return NULL;
- } else {
- if (dso__load_vmlinux_path(dso, map, NULL) <= 0) {
- pr_debug("Failed to load kernel map.\n");
- return NULL;
- }
- }
+ dso->load_errno = 0;
+ if (vmlinux_name)
+ ret = dso__load_vmlinux(dso, map, vmlinux_name, false, NULL);
+ else
+ ret = dso__load_vmlinux_path(dso, map, NULL);
found:
- return dso;
-}
-
-const char *kernel_get_module_path(const char *module)
-{
- struct dso *dso = kernel_get_module_dso(module);
- return (dso) ? dso->long_name : NULL;
+ *pdso = dso;
+ return ret;
}
static int convert_exec_to_group(const char *exec, char **result)
@@ -389,16 +381,25 @@ static int get_alternative_line_range(struct debuginfo *dinfo,
static struct debuginfo *open_debuginfo(const char *module, bool silent)
{
const char *path = module;
- struct debuginfo *ret;
+ char reason[STRERR_BUFSIZE];
+ struct debuginfo *ret = NULL;
+ struct dso *dso = NULL;
+ int err;
if (!module || !strchr(module, '/')) {
- path = kernel_get_module_path(module);
- if (!path) {
+ err = kernel_get_module_dso(module, &dso);
+ if (err < 0) {
+ if (!dso || dso->load_errno == 0) {
+ if (!strerror_r(-err, reason, STRERR_BUFSIZE))
+ strcpy(reason, "(unknown)");
+ } else
+ dso__strerror_load(dso, reason, STRERR_BUFSIZE);
if (!silent)
- pr_err("Failed to find path of %s module.\n",
- module ?: "kernel");
+ pr_err("Failed to find the path for %s: %s\n",
+ module ?: "kernel", reason);
return NULL;
}
+ path = dso->long_name;
}
ret = debuginfo__new(path);
if (!ret && !silent) {
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 537eb32..31db6ee 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -131,9 +131,6 @@ extern void line_range__clear(struct line_range *lr);
/* Initialize line range */
extern int line_range__init(struct line_range *lr);
-/* Internal use: Return kernel/module path */
-extern const char *kernel_get_module_path(const char *module);
-
extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
extern int del_perf_probe_events(struct strfilter *filter);
extern int show_perf_probe_events(struct strfilter *filter);
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH perf/core 2/2] [BUGFIX] perf probe: Fix an error when deleting probes successfully
2015-05-27 8:37 [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Masami Hiramatsu
@ 2015-05-27 8:37 ` Masami Hiramatsu
2015-05-27 16:52 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2015-05-27 12:50 ` [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Arnaldo Carvalho de Melo
2015-05-27 16:52 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2 siblings, 1 reply; 6+ messages in thread
From: Masami Hiramatsu @ 2015-05-27 8:37 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: Peter Zijlstra, Richard Weinberger, Linux Kernel Mailing List,
David Ahern, namhyung, Jiri Olsa, Ingo Molnar
Fix a bug in del_perf_probe_events() which returns an error
(-ENOENT) even if the probes are successfully deleted.
This happens only if the probes are on user-apps and not on
kernel, simply because it doesn't clear the previous error.
So, without this fix, we get an error even though events
are successfully removed.
------
# ./perf probe -x ./perf del_perf_probe_events
Added new event:
probe_perf:del_perf_probe_events (on del_perf_probe_events in ...
You can now use it in all perf tools, such as:
perf record -e probe_perf:del_perf_probe_events -aR sleep 1
# ./perf probe -d \*:\*
Removed event: probe_perf:del_perf_probe_events
Error: Failed to delete events.
------
This fixes the above error.
------
# ./perf probe -d \*:\*
Removed event: probe_perf:del_perf_probe_events
------
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
---
tools/perf/util/probe-event.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index f5be411..97da984 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2811,13 +2811,14 @@ int del_perf_probe_events(struct strfilter *filter)
goto error;
ret2 = del_trace_probe_events(ufd, filter, unamelist);
- if (ret2 < 0 && ret2 != -ENOENT)
+ if (ret2 < 0 && ret2 != -ENOENT) {
ret = ret2;
- else if (ret == -ENOENT && ret2 == -ENOENT) {
+ goto error;
+ }
+ if (ret == -ENOENT && ret2 == -ENOENT)
pr_debug("\"%s\" does not hit any event.\n", str);
/* Note that this is silently ignored */
- ret = 0;
- }
+ ret = 0;
error:
if (kfd >= 0) {
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO
2015-05-27 8:37 [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Masami Hiramatsu
2015-05-27 8:37 ` [PATCH perf/core 2/2] [BUGFIX] perf probe: Fix an error when deleting probes successfully Masami Hiramatsu
@ 2015-05-27 12:50 ` Arnaldo Carvalho de Melo
2015-05-27 23:42 ` Masami Hiramatsu
2015-05-27 16:52 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2 siblings, 1 reply; 6+ messages in thread
From: Arnaldo Carvalho de Melo @ 2015-05-27 12:50 UTC (permalink / raw)
To: Masami Hiramatsu
Cc: Peter Zijlstra, Richard Weinberger, Linux Kernel Mailing List,
David Ahern, namhyung, Jiri Olsa, Ingo Molnar
Em Wed, May 27, 2015 at 05:37:18PM +0900, Masami Hiramatsu escreveu:
> Show the reason of error when dso__load* failed. This shows
> when user gives wrong kernel image or wrong path.
> Without this, perf probe shows an obscure message.
> ----
> $ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
> Failed to find path of kernel module.
> Error: Failed to show lines.
> ----
> With this, perf shows appropriate error message.
> ----
> $ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
> Failed to find the path for kernel: Mismatching build id
> Error: Failed to show lines.
> ----
> And
> ----
> $ perf probe -k /non-exist/kernel/vmlinux -L vfs_read
> Failed to find the path for kernel: No such file or directory
> Error: Failed to show lines.
> ----
Its better than before, and I am applying it.
But please consider to change the message further, because when one
specifies the vmlinux file to use with -k/--vmlinux, the tool is not
trying to "find the path for kernel", it is trying to use a specific
vmlinux file.
I.e. the messages above are good if we do:
perf probe -L vfs_read
Here it _will_ try to find the path, as none was given.
So, when -k/--vmlinux is used, I suggest that the message be:
$ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
The kernel file "~/kbin/linux-3.x86_64/vmlinux" could not be used: Mismatching build id
Error: Failed to show lines.
And:
$ perf probe -k /non-exist/kernel/vmlinux -L vfs_read
The kernel file "/non-exist/kernel/vmlinux" could not be used: No such file or directory
Error: Failed to show lines.
Thanks!
- Arnaldo
^ permalink raw reply [flat|nested] 6+ messages in thread
* [tip:perf/core] perf probe: Show the error reason comes from invalid DSO
2015-05-27 8:37 [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Masami Hiramatsu
2015-05-27 8:37 ` [PATCH perf/core 2/2] [BUGFIX] perf probe: Fix an error when deleting probes successfully Masami Hiramatsu
2015-05-27 12:50 ` [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Arnaldo Carvalho de Melo
@ 2015-05-27 16:52 ` tip-bot for Masami Hiramatsu
2 siblings, 0 replies; 6+ messages in thread
From: tip-bot for Masami Hiramatsu @ 2015-05-27 16:52 UTC (permalink / raw)
To: linux-tip-commits
Cc: peterz, hpa, richard, dsahern, namhyung, linux-kernel, jolsa,
acme, mingo, tglx, masami.hiramatsu.pt
Commit-ID: 419e87382873b11b17cb31e2f21859570a32e0d1
Gitweb: http://git.kernel.org/tip/419e87382873b11b17cb31e2f21859570a32e0d1
Author: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
AuthorDate: Wed, 27 May 2015 17:37:18 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 27 May 2015 12:21:45 -0300
perf probe: Show the error reason comes from invalid DSO
Show the reason of error when dso__load* fails. This shows when user
gives wrong kernel image or wrong path.
Without this, perf probe shows an obscure message:
----
$ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
Failed to find path of kernel module.
Error: Failed to show lines.
----
With this, perf shows appropriate error message:
----
$ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
Failed to find the path for kernel: Mismatching build id
Error: Failed to show lines.
----
And:
----
$ perf probe -k /non-exist/kernel/vmlinux -L vfs_read
Failed to find the path for kernel: No such file or directory
Error: Failed to show lines.
----
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Weinberger <richard@nod.at>
Link: http://lkml.kernel.org/r/20150527083718.23880.84100.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/probe-event.c | 47 ++++++++++++++++++++++---------------------
tools/perf/util/probe-event.h | 3 ---
2 files changed, 24 insertions(+), 26 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 0922565..f5be411 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -200,11 +200,12 @@ static void put_target_map(struct map *map, bool user)
}
-static struct dso *kernel_get_module_dso(const char *module)
+static int kernel_get_module_dso(const char *module, struct dso **pdso)
{
struct dso *dso;
struct map *map;
const char *vmlinux_name;
+ int ret = 0;
if (module) {
list_for_each_entry(dso, &host_machine->kernel_dsos.head,
@@ -214,30 +215,21 @@ static struct dso *kernel_get_module_dso(const char *module)
goto found;
}
pr_debug("Failed to find module %s.\n", module);
- return NULL;
+ return -ENOENT;
}
map = host_machine->vmlinux_maps[MAP__FUNCTION];
dso = map->dso;
vmlinux_name = symbol_conf.vmlinux_name;
- if (vmlinux_name) {
- if (dso__load_vmlinux(dso, map, vmlinux_name, false, NULL) <= 0)
- return NULL;
- } else {
- if (dso__load_vmlinux_path(dso, map, NULL) <= 0) {
- pr_debug("Failed to load kernel map.\n");
- return NULL;
- }
- }
+ dso->load_errno = 0;
+ if (vmlinux_name)
+ ret = dso__load_vmlinux(dso, map, vmlinux_name, false, NULL);
+ else
+ ret = dso__load_vmlinux_path(dso, map, NULL);
found:
- return dso;
-}
-
-const char *kernel_get_module_path(const char *module)
-{
- struct dso *dso = kernel_get_module_dso(module);
- return (dso) ? dso->long_name : NULL;
+ *pdso = dso;
+ return ret;
}
static int convert_exec_to_group(const char *exec, char **result)
@@ -389,16 +381,25 @@ static int get_alternative_line_range(struct debuginfo *dinfo,
static struct debuginfo *open_debuginfo(const char *module, bool silent)
{
const char *path = module;
- struct debuginfo *ret;
+ char reason[STRERR_BUFSIZE];
+ struct debuginfo *ret = NULL;
+ struct dso *dso = NULL;
+ int err;
if (!module || !strchr(module, '/')) {
- path = kernel_get_module_path(module);
- if (!path) {
+ err = kernel_get_module_dso(module, &dso);
+ if (err < 0) {
+ if (!dso || dso->load_errno == 0) {
+ if (!strerror_r(-err, reason, STRERR_BUFSIZE))
+ strcpy(reason, "(unknown)");
+ } else
+ dso__strerror_load(dso, reason, STRERR_BUFSIZE);
if (!silent)
- pr_err("Failed to find path of %s module.\n",
- module ?: "kernel");
+ pr_err("Failed to find the path for %s: %s\n",
+ module ?: "kernel", reason);
return NULL;
}
+ path = dso->long_name;
}
ret = debuginfo__new(path);
if (!ret && !silent) {
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 537eb32..31db6ee 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -131,9 +131,6 @@ extern void line_range__clear(struct line_range *lr);
/* Initialize line range */
extern int line_range__init(struct line_range *lr);
-/* Internal use: Return kernel/module path */
-extern const char *kernel_get_module_path(const char *module);
-
extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
extern int del_perf_probe_events(struct strfilter *filter);
extern int show_perf_probe_events(struct strfilter *filter);
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [tip:perf/core] perf probe: Fix an error when deleting probes successfully
2015-05-27 8:37 ` [PATCH perf/core 2/2] [BUGFIX] perf probe: Fix an error when deleting probes successfully Masami Hiramatsu
@ 2015-05-27 16:52 ` tip-bot for Masami Hiramatsu
0 siblings, 0 replies; 6+ messages in thread
From: tip-bot for Masami Hiramatsu @ 2015-05-27 16:52 UTC (permalink / raw)
To: linux-tip-commits
Cc: jolsa, mingo, richard, linux-kernel, dsahern, tglx,
masami.hiramatsu.pt, acme, peterz, acme, namhyung, hpa
Commit-ID: dddc7ee32fa13efc66afa71ebd83bce545c8392a
Gitweb: http://git.kernel.org/tip/dddc7ee32fa13efc66afa71ebd83bce545c8392a
Author: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
AuthorDate: Wed, 27 May 2015 17:37:25 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 27 May 2015 12:21:46 -0300
perf probe: Fix an error when deleting probes successfully
Fix a bug in del_perf_probe_events() which returns an error (-ENOENT)
even if the probes are successfully deleted.
This happens only if the probes are on user-apps and not on kernel,
simply because it doesn't clear the previous error.
So, without this fix, we get an error even though events are being
successfully removed.
------
# ./perf probe -x ./perf del_perf_probe_events
Added new event:
probe_perf:del_perf_probe_events (on del_perf_probe_events in ...
You can now use it in all perf tools, such as:
perf record -e probe_perf:del_perf_probe_events -aR sleep 1
# ./perf probe -d \*:\*
Removed event: probe_perf:del_perf_probe_events
Error: Failed to delete events.
------
This fixes the above error.
------
# ./perf probe -d \*:\*
Removed event: probe_perf:del_perf_probe_events
------
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Weinberger <richard@nod.at>
Link: http://lkml.kernel.org/r/20150527083725.23880.45209.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/probe-event.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index f5be411..97da984 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2811,13 +2811,14 @@ int del_perf_probe_events(struct strfilter *filter)
goto error;
ret2 = del_trace_probe_events(ufd, filter, unamelist);
- if (ret2 < 0 && ret2 != -ENOENT)
+ if (ret2 < 0 && ret2 != -ENOENT) {
ret = ret2;
- else if (ret == -ENOENT && ret2 == -ENOENT) {
+ goto error;
+ }
+ if (ret == -ENOENT && ret2 == -ENOENT)
pr_debug("\"%s\" does not hit any event.\n", str);
/* Note that this is silently ignored */
- ret = 0;
- }
+ ret = 0;
error:
if (kfd >= 0) {
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO
2015-05-27 12:50 ` [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Arnaldo Carvalho de Melo
@ 2015-05-27 23:42 ` Masami Hiramatsu
0 siblings, 0 replies; 6+ messages in thread
From: Masami Hiramatsu @ 2015-05-27 23:42 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: Peter Zijlstra, Richard Weinberger, Linux Kernel Mailing List,
David Ahern, namhyung, Jiri Olsa, Ingo Molnar
On 2015/05/27 21:50, Arnaldo Carvalho de Melo wrote:
> Em Wed, May 27, 2015 at 05:37:18PM +0900, Masami Hiramatsu escreveu:
>> Show the reason of error when dso__load* failed. This shows
>> when user gives wrong kernel image or wrong path.
>
>> Without this, perf probe shows an obscure message.
>> ----
>> $ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
>> Failed to find path of kernel module.
>> Error: Failed to show lines.
>> ----
>
>> With this, perf shows appropriate error message.
>> ----
>> $ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
>> Failed to find the path for kernel: Mismatching build id
>> Error: Failed to show lines.
>> ----
>> And
>> ----
>> $ perf probe -k /non-exist/kernel/vmlinux -L vfs_read
>> Failed to find the path for kernel: No such file or directory
>> Error: Failed to show lines.
>> ----
>
> Its better than before, and I am applying it.
>
> But please consider to change the message further, because when one
> specifies the vmlinux file to use with -k/--vmlinux, the tool is not
> trying to "find the path for kernel", it is trying to use a specific
> vmlinux file.
>
> I.e. the messages above are good if we do:
>
> perf probe -L vfs_read
>
> Here it _will_ try to find the path, as none was given.
>
> So, when -k/--vmlinux is used, I suggest that the message be:
>
> $ perf probe -k ~/kbin/linux-3.x86_64/vmlinux -L vfs_read
> The kernel file "~/kbin/linux-3.x86_64/vmlinux" could not be used: Mismatching build id
> Error: Failed to show lines.
>
> And:
>
> $ perf probe -k /non-exist/kernel/vmlinux -L vfs_read
> The kernel file "/non-exist/kernel/vmlinux" could not be used: No such file or directory
> Error: Failed to show lines.
Indeed! This looks better for me.
Thank you!
--
Masami HIRAMATSU
Linux Technology Research Center, System Productivity Research Dept.
Center for Technology Innovation - Systems Engineering
Hitachi, Ltd., Research & Development Group
E-mail: masami.hiramatsu.pt@hitachi.com
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-05-27 23:42 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2015-05-27 8:37 [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Masami Hiramatsu
2015-05-27 8:37 ` [PATCH perf/core 2/2] [BUGFIX] perf probe: Fix an error when deleting probes successfully Masami Hiramatsu
2015-05-27 16:52 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2015-05-27 12:50 ` [PATCH perf/core 1/2] [RESEND] perf probe: Show the error reason comes from invalid DSO Arnaldo Carvalho de Melo
2015-05-27 23:42 ` Masami Hiramatsu
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