diff --git a/linux-ramdump-parser-v2/parsers/pagetracking.py b/linux-ramdump-parser-v2/parsers/pagetracking.py
index c7d4d87d8ecc87ae3d1f4be6055d3387aa16e9d2..e7ec446c273293a1570b1d9c1c97b049eab349cd 100644
--- a/linux-ramdump-parser-v2/parsers/pagetracking.py
+++ b/linux-ramdump-parser-v2/parsers/pagetracking.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2012,2014-2015 The Linux Foundation. All rights reserved.
+# Copyright (c) 2012,2014-2015,2017 The Linux Foundation. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 and
@@ -13,11 +13,13 @@ from print_out import print_out_str
from parser_util import register_parser, RamParser
from mm import pfn_to_page, page_buddy
+
@register_parser('--print-pagetracking', 'print page tracking information (if available)')
class PageTracking(RamParser):
def parse(self):
if not self.ramdump.is_config_defined('CONFIG_PAGE_OWNER'):
+ print_out_str('CONFIG_PAGE_OWNER not defined')
return
min_pfn_addr = self.ramdump.address_of('min_low_pfn')
@@ -27,18 +29,37 @@ class PageTracking(RamParser):
max_pfn = self.ramdump.read_word(
max_pfn_addr) + (self.ramdump.phys_offset >> 12)
- order_offset = self.ramdump.field_offset('struct page', 'order')
- flags_offset = self.ramdump.field_offset('struct page', 'flags')
- trace_offset = self.ramdump.field_offset('struct page', 'trace')
- nr_entries_offset = self.ramdump.field_offset(
- 'struct stack_trace', 'nr_entries')
- trace_entries_offset = self.ramdump.field_offset(
- 'struct page', 'trace_entries')
+ if (self.ramdump.kernel_version >= (3, 19, 0)):
+ mem_section = self.ramdump.read_word('mem_section')
+
+ trace_offset = 0
+ nr_entries_offset = 0
+ trace_entries_offset = 0
+ offset = 0
+ struct_holding_trace_entries = 0
+ trace_entry_size = self.ramdump.sizeof("unsigned long")
+
+ if (self.ramdump.kernel_version <= (3, 19, 0)):
+ trace_offset = self.ramdump.field_offset('struct page', 'trace')
+ nr_entries_offset = self.ramdump.field_offset(
+ 'struct stack_trace', 'nr_entries')
+ trace_entries_offset = self.ramdump.field_offset(
+ 'struct page', 'trace_entries')
+ else:
+ page_ext_offset = self.ramdump.field_offset(
+ 'struct mem_section', 'page_ext')
+ trace_offset = self.ramdump.field_offset(
+ 'struct page_ext', 'trace')
+ trace_entries_offset = self.ramdump.field_offset(
+ 'struct page_ext', 'trace_entries')
+ nr_entries_offset = self.ramdump.field_offset(
+ 'struct page_ext', 'nr_entries')
+ mem_section_size = self.ramdump.sizeof("struct mem_section")
+ page_ext_size = self.ramdump.sizeof("struct page_ext")
out_tracking = self.ramdump.open_file('page_tracking.txt')
out_frequency = self.ramdump.open_file('page_frequency.txt')
sorted_pages = {}
- trace_entry_size = self.ramdump.sizeof("unsigned long")
for pfn in range(min_pfn, max_pfn):
page = pfn_to_page(self.ramdump, pfn)
@@ -46,19 +67,34 @@ class PageTracking(RamParser):
# validate this page is free
if page_buddy(self.ramdump, page):
continue
-
- nr_trace_entries = self.ramdump.read_int(
- page + trace_offset + nr_entries_offset)
+ if (self.ramdump.kernel_version <= (3, 19, 0)):
+ nr_trace_entries = self.ramdump.read_int(
+ page + trace_offset + nr_entries_offset)
+ struct_holding_trace_entries = page
+ else:
+ phys = pfn << 12
+ if phys is None or phys is 0:
+ continue
+ offset = phys >> 30
+
+ mem_section_0_offset = (
+ mem_section + (offset * mem_section_size))
+ page_ext = self.ramdump.read_word(
+ mem_section_0_offset + page_ext_offset)
+ temp_page_ext = page_ext + (pfn * page_ext_size)
+ nr_trace_entries = self.ramdump.read_int(
+ temp_page_ext + nr_entries_offset)
+ struct_holding_trace_entries = temp_page_ext
if nr_trace_entries <= 0 or nr_trace_entries > 16:
continue
- out_tracking.write('PFN 0x{0:x} page 0x{1:x}\n'.format(pfn, page))
+ out_tracking.write('PFN 0x{0:x} page 0x{1:x} \n'.format(pfn, page))
alloc_str = ''
for i in range(0, nr_trace_entries):
addr = self.ramdump.read_word(
- page + trace_entries_offset + i * trace_entry_size)
+ struct_holding_trace_entries + trace_entries_offset + i * trace_entry_size)
if addr == 0:
break
@@ -66,8 +102,8 @@ class PageTracking(RamParser):
if look is None:
break
symname, offset = look
- unwind_dat = ' [<{0:x}>] {1}+0x{2:x}\n'.format(addr,
- symname, offset)
+ unwind_dat = ' [<{0:x}>] {1}+0x{2:x}\n'.format(
+ addr, symname, offset)
out_tracking.write(unwind_dat)
alloc_str = alloc_str + unwind_dat