From: Steven Rostedt <rostedt@goodmis.org>
To: Jungseok Lee <jungseoklee85@gmail.com>
Cc: AKASHI Takahiro <takahiro.akashi@linaro.org>,
catalin.marinas@arm.com, will.deacon@arm.com, olof@lixom.net,
broonie@kernel.org, david.griego@linaro.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC 2/3] arm64: refactor save_stack_trace()
Date: Thu, 16 Jul 2015 10:24:05 -0400 [thread overview]
Message-ID: <20150716102405.2cc8c406@gandalf.local.home> (raw)
In-Reply-To: <A601CC3C-4B09-4D8B-8564-558349D45815@gmail.com>
On Thu, 16 Jul 2015 22:29:05 +0900
Jungseok Lee <jungseoklee85@gmail.com> wrote:
> First of all, let's look at the following data.
>
> 1) stack_trace data
> Depth Size Location (55 entries)
> ----- ---- --------
> 0) 4808 16 notifier_call_chain+0x2c/0x94
> 1) 4792 64 raw_notifier_call_chain+0x34/0x44
> 2) 4728 48 timekeeping_update.constprop.9+0xb8/0x114
> 3) 4680 48 update_wall_time+0x408/0x6dc
> 4) 4632 128 tick_do_update_jiffies64+0xd8/0x154
> 5) 4504 80 tick_sched_do_timer+0x50/0x60
> 6) 4424 32 tick_sched_timer+0x34/0x90
> 7) 4392 48 __run_hrtimer+0x60/0x258
> 8) 4344 64 hrtimer_interrupt+0xe8/0x260
> 9) 4280 128 arch_timer_handler_virt+0x38/0x48
> 10) 4152 32 handle_percpu_devid_irq+0x84/0x188
> 11) 4120 64 generic_handle_irq+0x38/0x54
> 12) 4056 32 __handle_domain_irq+0x68/0xbc
> 13) 4024 64 gic_handle_irq+0x38/0x88
> 14) 3960 336 el1_irq+0x64/0xd8
> 15) 3624 16 netif_rx_internal+0x14/0x198
> 16) 3608 64 netif_rx+0x20/0xa4
> 17) 3544 32 loopback_xmit+0x64/0xf4
> 18) 3512 48 dev_hard_start_xmit+0x25c/0x3f8
> 19) 3464 160 __dev_queue_xmit+0x440/0x4dc
> 20) 3304 96 dev_queue_xmit_sk+0x20/0x30
> 21) 3208 32 ip_finish_output+0x1e0/0xabc
> 22) 3176 96 ip_output+0xf0/0x120
> 23) 3080 64 ip_local_out_sk+0x44/0x54
> 24) 3016 32 ip_send_skb+0x24/0xbc
> 25) 2984 48 ip_push_pending_frames+0x40/0x60
> 26) 2936 64 icmp_push_reply+0x104/0x144
> 27) 2872 96 icmp_send+0x3c0/0x3c8
> 28) 2776 192 __udp4_lib_rcv+0x5b8/0x684
> 29) 2584 96 udp_rcv+0x2c/0x3c
> 30) 2488 32 ip_local_deliver+0xa0/0x224
> 31) 2456 48 ip_rcv+0x360/0x57c
> 32) 2408 64 __netif_receive_skb_core+0x4d0/0x80c
> 33) 2344 128 __netif_receive_skb+0x24/0x84
> 34) 2216 32 process_backlog+0x9c/0x15c
> 35) 2184 80 net_rx_action+0x1ec/0x32c
> 36) 2104 160 __do_softirq+0x114/0x2f0
> 37) 1944 128 do_softirq+0x60/0x68
> 38) 1816 32 __local_bh_enable_ip+0xb0/0xd4
> 39) 1784 32 ip_finish_output+0x1f4/0xabc
> 40) 1752 96 ip_output+0xf0/0x120
> 41) 1656 64 ip_local_out_sk+0x44/0x54
> 42) 1592 32 ip_send_skb+0x24/0xbc
> 43) 1560 48 udp_send_skb+0x1b4/0x2f4
> 44) 1512 80 udp_sendmsg+0x2a8/0x7a0
> 45) 1432 272 inet_sendmsg+0xa0/0xd0
> 46) 1160 48 sock_sendmsg+0x30/0x78
> 47) 1112 32 ___sys_sendmsg+0x15c/0x26c
> 48) 1080 400 __sys_sendmmsg+0x94/0x180
> 49) 680 320 SyS_sendmmsg+0x38/0x54
> 50) 360 360 el0_svc_naked+0x20/0x28
>
> 2) stack_max_size data
> 4888
>
> The data looks odd in two points.
> 1) the number of entry
> There is a mismatch between start token and real data
Yep, good catch. As soon as I read that, I realized exactly what the
issue was ;-)
>
> 2) 80-byte gap
> stack_max_size is not aligned with "Depth" field of the first entry of stack_trace.
>
> IMHO, two items are not considered in this series as digging them out.
>
> 1) skipped entries
> As x variable is introduced in Steve's patch, it is needed to track down
> how many entries are recorded in both stack_dump_trace and stack_dump_index.
Yep.
>
> 2) max_stack_trace.skip value
> max_stack_trace.skip is 0 as applying Steve's patch. The above gap could be
> observed unless the value is not considered in arch code. In the above example,
> 80-byte gap is save_stack_trace function in arch/arm64/kernel/stacktrace.c.
>
> As applying the following fix, stack_trace and stack_max_size are okay.
> However, I'm not sure which code, arch or generic ftrace, should handle trace->skip.
> The latter one is responsible for it under current implementation, not Steve's change.
>
> Please correct me if I am wrong.
No, it's a bug in my patch. I'll make an update.
Does this new patch fix it for you?
-- Steve
---
kernel/trace/trace_stack.c | 58 +++++++++++++--------------------------------
1 file changed, 17 insertions(+), 41 deletions(-)
Index: linux-trace.git/kernel/trace/trace_stack.c
===================================================================
--- linux-trace.git.orig/kernel/trace/trace_stack.c 2015-07-15 12:49:59.290063597 -0400
+++ linux-trace.git/kernel/trace/trace_stack.c 2015-07-16 09:55:37.936188197 -0400
@@ -18,12 +18,6 @@
#define STACK_TRACE_ENTRIES 500
-#ifdef CC_USING_FENTRY
-# define fentry 1
-#else
-# define fentry 0
-#endif
-
static unsigned long stack_dump_trace[STACK_TRACE_ENTRIES+1] =
{ [0 ... (STACK_TRACE_ENTRIES)] = ULONG_MAX };
static unsigned stack_dump_index[STACK_TRACE_ENTRIES];
@@ -35,7 +29,7 @@ static unsigned stack_dump_index[STACK_T
*/
static struct stack_trace max_stack_trace = {
.max_entries = STACK_TRACE_ENTRIES - 1,
- .entries = &stack_dump_trace[1],
+ .entries = &stack_dump_trace[0],
};
static unsigned long max_stack_size;
@@ -77,7 +71,7 @@ check_stack(unsigned long ip, unsigned l
unsigned long this_size, flags; unsigned long *p, *top, *start;
static int tracer_frame;
int frame_size = ACCESS_ONCE(tracer_frame);
- int i;
+ int i, x;
this_size = ((unsigned long)stack) & (THREAD_SIZE-1);
this_size = THREAD_SIZE - this_size;
@@ -105,26 +99,20 @@ check_stack(unsigned long ip, unsigned l
max_stack_size = this_size;
max_stack_trace.nr_entries = 0;
-
- if (using_ftrace_ops_list_func())
- max_stack_trace.skip = 4;
- else
- max_stack_trace.skip = 3;
+ max_stack_trace.skip = 3;
save_stack_trace(&max_stack_trace);
- /*
- * Add the passed in ip from the function tracer.
- * Searching for this on the stack will skip over
- * most of the overhead from the stack tracer itself.
- */
- stack_dump_trace[0] = ip;
- max_stack_trace.nr_entries++;
+ /* Skip over the overhead of the stack tracer itself */
+ for (i = 0; i < max_stack_trace.nr_entries; i++) {
+ if (stack_dump_trace[i] == ip)
+ break;
+ }
/*
* Now find where in the stack these are.
*/
- i = 0;
+ x = 0;
start = stack;
top = (unsigned long *)
(((unsigned long)start & ~(THREAD_SIZE-1)) + THREAD_SIZE);
@@ -139,12 +127,13 @@ check_stack(unsigned long ip, unsigned l
while (i < max_stack_trace.nr_entries) {
int found = 0;
- stack_dump_index[i] = this_size;
+ stack_dump_index[x] = this_size;
p = start;
for (; p < top && i < max_stack_trace.nr_entries; p++) {
if (*p == stack_dump_trace[i]) {
- this_size = stack_dump_index[i++] =
+ stack_dump_trace[x] = stack_dump_trace[i++];
+ this_size = stack_dump_index[x++] =
(top - p) * sizeof(unsigned long);
found = 1;
/* Start the search from here */
@@ -168,6 +157,10 @@ check_stack(unsigned long ip, unsigned l
i++;
}
+ max_stack_trace.nr_entries = x;
+ for (; x < i; x++)
+ stack_dump_trace[x] = ULONG_MAX;
+
if (task_stack_end_corrupted(current)) {
print_max_stack();
BUG();
@@ -192,24 +185,7 @@ stack_trace_call(unsigned long ip, unsig
if (per_cpu(trace_active, cpu)++ != 0)
goto out;
- /*
- * When fentry is used, the traced function does not get
- * its stack frame set up, and we lose the parent.
- * The ip is pretty useless because the function tracer
- * was called before that function set up its stack frame.
- * In this case, we use the parent ip.
- *
- * By adding the return address of either the parent ip
- * or the current ip we can disregard most of the stack usage
- * caused by the stack tracer itself.
- *
- * The function tracer always reports the address of where the
- * mcount call was, but the stack will hold the return address.
- */
- if (fentry)
- ip = parent_ip;
- else
- ip += MCOUNT_INSN_SIZE;
+ ip += MCOUNT_INSN_SIZE;
check_stack(ip, &stack);
WARNING: multiple messages have this Message-ID (diff)
From: rostedt@goodmis.org (Steven Rostedt)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 2/3] arm64: refactor save_stack_trace()
Date: Thu, 16 Jul 2015 10:24:05 -0400 [thread overview]
Message-ID: <20150716102405.2cc8c406@gandalf.local.home> (raw)
In-Reply-To: <A601CC3C-4B09-4D8B-8564-558349D45815@gmail.com>
On Thu, 16 Jul 2015 22:29:05 +0900
Jungseok Lee <jungseoklee85@gmail.com> wrote:
> First of all, let's look at the following data.
>
> 1) stack_trace data
> Depth Size Location (55 entries)
> ----- ---- --------
> 0) 4808 16 notifier_call_chain+0x2c/0x94
> 1) 4792 64 raw_notifier_call_chain+0x34/0x44
> 2) 4728 48 timekeeping_update.constprop.9+0xb8/0x114
> 3) 4680 48 update_wall_time+0x408/0x6dc
> 4) 4632 128 tick_do_update_jiffies64+0xd8/0x154
> 5) 4504 80 tick_sched_do_timer+0x50/0x60
> 6) 4424 32 tick_sched_timer+0x34/0x90
> 7) 4392 48 __run_hrtimer+0x60/0x258
> 8) 4344 64 hrtimer_interrupt+0xe8/0x260
> 9) 4280 128 arch_timer_handler_virt+0x38/0x48
> 10) 4152 32 handle_percpu_devid_irq+0x84/0x188
> 11) 4120 64 generic_handle_irq+0x38/0x54
> 12) 4056 32 __handle_domain_irq+0x68/0xbc
> 13) 4024 64 gic_handle_irq+0x38/0x88
> 14) 3960 336 el1_irq+0x64/0xd8
> 15) 3624 16 netif_rx_internal+0x14/0x198
> 16) 3608 64 netif_rx+0x20/0xa4
> 17) 3544 32 loopback_xmit+0x64/0xf4
> 18) 3512 48 dev_hard_start_xmit+0x25c/0x3f8
> 19) 3464 160 __dev_queue_xmit+0x440/0x4dc
> 20) 3304 96 dev_queue_xmit_sk+0x20/0x30
> 21) 3208 32 ip_finish_output+0x1e0/0xabc
> 22) 3176 96 ip_output+0xf0/0x120
> 23) 3080 64 ip_local_out_sk+0x44/0x54
> 24) 3016 32 ip_send_skb+0x24/0xbc
> 25) 2984 48 ip_push_pending_frames+0x40/0x60
> 26) 2936 64 icmp_push_reply+0x104/0x144
> 27) 2872 96 icmp_send+0x3c0/0x3c8
> 28) 2776 192 __udp4_lib_rcv+0x5b8/0x684
> 29) 2584 96 udp_rcv+0x2c/0x3c
> 30) 2488 32 ip_local_deliver+0xa0/0x224
> 31) 2456 48 ip_rcv+0x360/0x57c
> 32) 2408 64 __netif_receive_skb_core+0x4d0/0x80c
> 33) 2344 128 __netif_receive_skb+0x24/0x84
> 34) 2216 32 process_backlog+0x9c/0x15c
> 35) 2184 80 net_rx_action+0x1ec/0x32c
> 36) 2104 160 __do_softirq+0x114/0x2f0
> 37) 1944 128 do_softirq+0x60/0x68
> 38) 1816 32 __local_bh_enable_ip+0xb0/0xd4
> 39) 1784 32 ip_finish_output+0x1f4/0xabc
> 40) 1752 96 ip_output+0xf0/0x120
> 41) 1656 64 ip_local_out_sk+0x44/0x54
> 42) 1592 32 ip_send_skb+0x24/0xbc
> 43) 1560 48 udp_send_skb+0x1b4/0x2f4
> 44) 1512 80 udp_sendmsg+0x2a8/0x7a0
> 45) 1432 272 inet_sendmsg+0xa0/0xd0
> 46) 1160 48 sock_sendmsg+0x30/0x78
> 47) 1112 32 ___sys_sendmsg+0x15c/0x26c
> 48) 1080 400 __sys_sendmmsg+0x94/0x180
> 49) 680 320 SyS_sendmmsg+0x38/0x54
> 50) 360 360 el0_svc_naked+0x20/0x28
>
> 2) stack_max_size data
> 4888
>
> The data looks odd in two points.
> 1) the number of entry
> There is a mismatch between start token and real data
Yep, good catch. As soon as I read that, I realized exactly what the
issue was ;-)
>
> 2) 80-byte gap
> stack_max_size is not aligned with "Depth" field of the first entry of stack_trace.
>
> IMHO, two items are not considered in this series as digging them out.
>
> 1) skipped entries
> As x variable is introduced in Steve's patch, it is needed to track down
> how many entries are recorded in both stack_dump_trace and stack_dump_index.
Yep.
>
> 2) max_stack_trace.skip value
> max_stack_trace.skip is 0 as applying Steve's patch. The above gap could be
> observed unless the value is not considered in arch code. In the above example,
> 80-byte gap is save_stack_trace function in arch/arm64/kernel/stacktrace.c.
>
> As applying the following fix, stack_trace and stack_max_size are okay.
> However, I'm not sure which code, arch or generic ftrace, should handle trace->skip.
> The latter one is responsible for it under current implementation, not Steve's change.
>
> Please correct me if I am wrong.
No, it's a bug in my patch. I'll make an update.
Does this new patch fix it for you?
-- Steve
---
kernel/trace/trace_stack.c | 58 +++++++++++++--------------------------------
1 file changed, 17 insertions(+), 41 deletions(-)
Index: linux-trace.git/kernel/trace/trace_stack.c
===================================================================
--- linux-trace.git.orig/kernel/trace/trace_stack.c 2015-07-15 12:49:59.290063597 -0400
+++ linux-trace.git/kernel/trace/trace_stack.c 2015-07-16 09:55:37.936188197 -0400
@@ -18,12 +18,6 @@
#define STACK_TRACE_ENTRIES 500
-#ifdef CC_USING_FENTRY
-# define fentry 1
-#else
-# define fentry 0
-#endif
-
static unsigned long stack_dump_trace[STACK_TRACE_ENTRIES+1] =
{ [0 ... (STACK_TRACE_ENTRIES)] = ULONG_MAX };
static unsigned stack_dump_index[STACK_TRACE_ENTRIES];
@@ -35,7 +29,7 @@ static unsigned stack_dump_index[STACK_T
*/
static struct stack_trace max_stack_trace = {
.max_entries = STACK_TRACE_ENTRIES - 1,
- .entries = &stack_dump_trace[1],
+ .entries = &stack_dump_trace[0],
};
static unsigned long max_stack_size;
@@ -77,7 +71,7 @@ check_stack(unsigned long ip, unsigned l
unsigned long this_size, flags; unsigned long *p, *top, *start;
static int tracer_frame;
int frame_size = ACCESS_ONCE(tracer_frame);
- int i;
+ int i, x;
this_size = ((unsigned long)stack) & (THREAD_SIZE-1);
this_size = THREAD_SIZE - this_size;
@@ -105,26 +99,20 @@ check_stack(unsigned long ip, unsigned l
max_stack_size = this_size;
max_stack_trace.nr_entries = 0;
-
- if (using_ftrace_ops_list_func())
- max_stack_trace.skip = 4;
- else
- max_stack_trace.skip = 3;
+ max_stack_trace.skip = 3;
save_stack_trace(&max_stack_trace);
- /*
- * Add the passed in ip from the function tracer.
- * Searching for this on the stack will skip over
- * most of the overhead from the stack tracer itself.
- */
- stack_dump_trace[0] = ip;
- max_stack_trace.nr_entries++;
+ /* Skip over the overhead of the stack tracer itself */
+ for (i = 0; i < max_stack_trace.nr_entries; i++) {
+ if (stack_dump_trace[i] == ip)
+ break;
+ }
/*
* Now find where in the stack these are.
*/
- i = 0;
+ x = 0;
start = stack;
top = (unsigned long *)
(((unsigned long)start & ~(THREAD_SIZE-1)) + THREAD_SIZE);
@@ -139,12 +127,13 @@ check_stack(unsigned long ip, unsigned l
while (i < max_stack_trace.nr_entries) {
int found = 0;
- stack_dump_index[i] = this_size;
+ stack_dump_index[x] = this_size;
p = start;
for (; p < top && i < max_stack_trace.nr_entries; p++) {
if (*p == stack_dump_trace[i]) {
- this_size = stack_dump_index[i++] =
+ stack_dump_trace[x] = stack_dump_trace[i++];
+ this_size = stack_dump_index[x++] =
(top - p) * sizeof(unsigned long);
found = 1;
/* Start the search from here */
@@ -168,6 +157,10 @@ check_stack(unsigned long ip, unsigned l
i++;
}
+ max_stack_trace.nr_entries = x;
+ for (; x < i; x++)
+ stack_dump_trace[x] = ULONG_MAX;
+
if (task_stack_end_corrupted(current)) {
print_max_stack();
BUG();
@@ -192,24 +185,7 @@ stack_trace_call(unsigned long ip, unsig
if (per_cpu(trace_active, cpu)++ != 0)
goto out;
- /*
- * When fentry is used, the traced function does not get
- * its stack frame set up, and we lose the parent.
- * The ip is pretty useless because the function tracer
- * was called before that function set up its stack frame.
- * In this case, we use the parent ip.
- *
- * By adding the return address of either the parent ip
- * or the current ip we can disregard most of the stack usage
- * caused by the stack tracer itself.
- *
- * The function tracer always reports the address of where the
- * mcount call was, but the stack will hold the return address.
- */
- if (fentry)
- ip = parent_ip;
- else
- ip += MCOUNT_INSN_SIZE;
+ ip += MCOUNT_INSN_SIZE;
check_stack(ip, &stack);
next prev parent reply other threads:[~2015-07-16 14:24 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 5:29 [RFC 0/3] arm64: ftrace: fix incorrect output from stack tracer AKASHI Takahiro
2015-07-13 5:29 ` AKASHI Takahiro
2015-07-13 5:29 ` [RFC 1/3] ftrace: adjust a function's pc to search for in check_stack() for arm64 AKASHI Takahiro
2015-07-13 5:29 ` AKASHI Takahiro
2015-07-13 15:24 ` Steven Rostedt
2015-07-13 15:24 ` Steven Rostedt
2015-07-15 0:22 ` AKASHI Takahiro
2015-07-15 0:22 ` AKASHI Takahiro
2015-07-13 5:29 ` [RFC 2/3] arm64: refactor save_stack_trace() AKASHI Takahiro
2015-07-13 5:29 ` AKASHI Takahiro
2015-07-14 12:47 ` Jungseok Lee
2015-07-14 12:47 ` Jungseok Lee
2015-07-14 13:31 ` Steven Rostedt
2015-07-14 13:31 ` Steven Rostedt
2015-07-15 0:20 ` AKASHI Takahiro
2015-07-15 0:20 ` AKASHI Takahiro
2015-07-15 2:51 ` Steven Rostedt
2015-07-15 2:51 ` Steven Rostedt
2015-07-15 11:41 ` AKASHI Takahiro
2015-07-15 11:41 ` AKASHI Takahiro
2015-07-15 14:55 ` Steven Rostedt
2015-07-15 14:55 ` Steven Rostedt
2015-07-15 16:13 ` Steven Rostedt
2015-07-15 16:13 ` Steven Rostedt
2015-07-16 0:27 ` AKASHI Takahiro
2015-07-16 0:27 ` AKASHI Takahiro
2015-07-16 1:08 ` AKASHI Takahiro
2015-07-16 1:08 ` AKASHI Takahiro
2015-07-16 1:38 ` Steven Rostedt
2015-07-16 1:38 ` Steven Rostedt
2015-07-17 10:46 ` Will Deacon
2015-07-17 10:46 ` Will Deacon
2015-07-16 13:29 ` Jungseok Lee
2015-07-16 13:29 ` Jungseok Lee
2015-07-16 13:54 ` Jungseok Lee
2015-07-16 13:54 ` Jungseok Lee
2015-07-16 14:24 ` Steven Rostedt [this message]
2015-07-16 14:24 ` Steven Rostedt
2015-07-16 15:01 ` Jungseok Lee
2015-07-16 15:01 ` Jungseok Lee
2015-07-16 15:31 ` Steven Rostedt
2015-07-16 15:31 ` Steven Rostedt
2015-07-16 15:52 ` Jungseok Lee
2015-07-16 15:52 ` Jungseok Lee
2015-07-16 20:22 ` Steven Rostedt
2015-07-16 20:22 ` Steven Rostedt
2015-07-17 2:49 ` AKASHI Takahiro
2015-07-17 2:49 ` AKASHI Takahiro
2015-07-17 3:21 ` Steven Rostedt
2015-07-17 3:21 ` Steven Rostedt
2015-07-16 16:16 ` Steven Rostedt
2015-07-16 16:16 ` Steven Rostedt
2015-07-17 12:40 ` Mark Rutland
2015-07-17 12:40 ` Mark Rutland
2015-07-17 12:51 ` Steven Rostedt
2015-07-17 12:51 ` Steven Rostedt
2015-07-17 13:00 ` Steven Rostedt
2015-07-17 13:00 ` Steven Rostedt
2015-07-17 14:28 ` Jungseok Lee
2015-07-17 14:28 ` Jungseok Lee
2015-07-17 14:41 ` Steven Rostedt
2015-07-17 14:41 ` Steven Rostedt
2015-07-17 14:59 ` Jungseok Lee
2015-07-17 14:59 ` Jungseok Lee
2015-07-17 15:34 ` Jungseok Lee
2015-07-17 15:34 ` Jungseok Lee
2015-07-17 16:01 ` Steven Rostedt
2015-07-17 16:01 ` Steven Rostedt
2015-07-20 16:20 ` Will Deacon
2015-07-20 16:20 ` Will Deacon
2015-07-20 23:53 ` AKASHI Takahiro
2015-07-20 23:53 ` AKASHI Takahiro
2015-07-21 10:26 ` AKASHI Takahiro
2015-07-21 10:26 ` AKASHI Takahiro
2015-07-21 14:34 ` Jungseok Lee
2015-07-21 14:34 ` Jungseok Lee
2015-08-03 9:09 ` Will Deacon
2015-08-03 9:09 ` Will Deacon
2015-08-03 14:01 ` Steven Rostedt
2015-08-03 14:01 ` Steven Rostedt
2015-08-03 14:04 ` Will Deacon
2015-08-03 14:04 ` Will Deacon
2015-08-03 16:30 ` Jungseok Lee
2015-08-03 16:30 ` Jungseok Lee
2015-08-03 16:57 ` Steven Rostedt
2015-08-03 16:57 ` Steven Rostedt
2015-08-03 17:22 ` Jungseok Lee
2015-08-03 17:22 ` Jungseok Lee
2015-08-03 17:32 ` Steven Rostedt
2015-08-03 17:32 ` Steven Rostedt
2015-08-04 7:41 ` AKASHI Takahiro
2015-08-04 7:41 ` AKASHI Takahiro
2015-07-17 2:04 ` AKASHI Takahiro
2015-07-17 2:04 ` AKASHI Takahiro
2015-07-17 14:38 ` Jungseok Lee
2015-07-17 14:38 ` Jungseok Lee
2015-07-16 14:28 ` Mark Rutland
2015-07-16 14:28 ` Mark Rutland
2015-07-16 14:34 ` Steven Rostedt
2015-07-16 14:34 ` Steven Rostedt
2015-07-17 2:09 ` AKASHI Takahiro
2015-07-17 2:09 ` AKASHI Takahiro
2015-07-13 5:29 ` [RFC 3/3] arm64: ftrace: mcount() should not create a stack frame AKASHI Takahiro
2015-07-13 5:29 ` AKASHI Takahiro
2015-07-13 15:01 ` [RFC 0/3] arm64: ftrace: fix incorrect output from stack tracer Jungseok Lee
2015-07-13 15:01 ` Jungseok Lee
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=20150716102405.2cc8c406@gandalf.local.home \
--to=rostedt@goodmis.org \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=david.griego@linaro.org \
--cc=jungseoklee85@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=olof@lixom.net \
--cc=takahiro.akashi@linaro.org \
--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.