From d70ee8ddca8c160cb562e6bed0f8fe2e897ad66e Mon Sep 17 00:00:00 2001
From: Gopi Krishna Nedanuri <gnedanur@codeaurora.org>
Date: Wed, 26 Jul 2017 22:28:19 +0530
Subject: [PATCH] lrdp_v2: Print timer related info
Print timer related info to analyze NS Watchdog issues.
Change-Id: Ib398075b58bd7063e24248597c7869ced8d8a645
---
linux-ramdump-parser-v2/watchdog_v2.py | 27 ++++++++++++++++++++++----
1 file changed, 23 insertions(+), 4 deletions(-)
diff --git a/linux-ramdump-parser-v2/watchdog_v2.py b/linux-ramdump-parser-v2/watchdog_v2.py
index bcb87b6..2de9189 100644
--- a/linux-ramdump-parser-v2/watchdog_v2.py
+++ b/linux-ramdump-parser-v2/watchdog_v2.py
@@ -839,7 +839,7 @@ def get_wdog_timing(ramdump):
logical_map = []
jiffies = ramdump.read_word('jiffies')
last_jiffies_update = ramdump.read_word('last_jiffies_update')
- tick_do_timer_cpu = ramdump.read_word('tick_do_timer_cpu')
+ tick_do_timer_cpu = ramdump.read_s32('tick_do_timer_cpu')
wdog_data_addr = ramdump.read_word('wdog_data')
pet_timer_off = ramdump.field_offset(
'struct msm_watchdog_data', 'pet_timer')
@@ -858,6 +858,13 @@ def get_wdog_timing(ramdump):
bark_time = ramdump.read_int(wdog_data_addr + bark_time_off)
wdog_alive_mask = ramdump.read_structure_field(
wdog_data_addr, 'struct msm_watchdog_data', 'alive_mask.bits')
+ tick_bc_mask = ramdump.read_word('tick_broadcast_oneshot_mask')
+ tick_bc_pending_mask = ramdump.read_word('tick_broadcast_pending_mask')
+ tick_bc_evt_dev = ramdump.read_structure_field(
+ 'tick_broadcast_device', 'struct tick_device', 'evtdev')
+ tick_bc_next_evt = ramdump.read_structure_field(
+ tick_bc_evt_dev, 'struct clock_event_device', 'next_event')
+ tick_bc_next_evt = ns_to_sec(tick_bc_next_evt)
if (ramdump.kernel_version >= (4, 9, 0)):
cpu_online_bits = ramdump.read_word('__cpu_online_mask')
else:
@@ -877,7 +884,6 @@ def get_wdog_timing(ramdump):
wdog_task_queued = ramdump.read_structure_field(
wdog_task, 'struct task_struct', 'sched_info.last_queued')
logical_map_addr = ramdump.address_of('__cpu_logical_map')
-
for i in range(0, ramdump.get_num_cpus()):
cpu_logical_map_addr = logical_map_addr + (i * 8)
core_id = ramdump.read_u64(cpu_logical_map_addr)
@@ -924,9 +930,22 @@ def get_wdog_timing(ramdump):
'Timestamp of last timer interrupt(last_jiffies_update): {0}'.format(
ns_to_sec(last_jiffies_update)))
print_out_str("tick_do_timer_cpu: {0}".format(tick_do_timer_cpu))
- print_out_str('tick_do_timer_cpu is core which increments jiffies and '
- 'processes watchdog pet timer')
print_out_str('CPU logical map: {0}'.format(logical_map))
+ print_out_str('tick_broadcast_oneshot_mask: {0:08b}'.format(tick_bc_mask))
+ print_out_str(
+ 'tick_broadcast_pending_mask: {0:08b}'.format(tick_bc_pending_mask))
+ print_out_str(
+ 'tick_broad_cast_device next_event: {0:.6f}'.format(tick_bc_next_evt))
+ for i in range(0, ramdump.get_num_cpus()):
+ tick_cpu_device = ramdump.address_of(
+ 'tick_cpu_device') + ramdump.per_cpu_offset(i)
+ evt_dev = ramdump.read_structure_field(
+ tick_cpu_device, 'struct tick_device', 'evtdev')
+ next_event = ramdump.read_structure_field(
+ evt_dev, 'struct clock_event_device', 'next_event')
+ next_event = ns_to_sec(next_event)
+ print_out_str(
+ "CPU{0} tick_device next_event: {1:.6f}".format(i, next_event))
epoch_ns = ramdump.read_word('cd.read_data[0].epoch_ns')
epoch_cyc = ramdump.read_word('cd.read_data[0].epoch_cyc')
print_out_str('epoch_ns: {0}ns epoch_cyc: {1}'.format(epoch_ns,epoch_cyc))
--
GitLab