# -*- coding: Latin-1 -*-
#
# Linux OOM Analyser
#
# Copyright (c) 2017-2018 Carsten Grohmann
# License: MIT - THIS PROGRAM COMES WITH NO WARRANTY
import re
DEBUG = False
"""Show additional information during the development cycle"""
VERSION = "0.2.0"
"""Version number"""
def hide_element(element_id):
"""Hide the given HTML element"""
document.getElementById(element_id).style.display = 'none'
def show_element(element_id):
"""Show the given HTML element"""
document.getElementById(element_id).style.display = 'block'
def toggle(element_id):
"""Toggle the visibility of the given HTML element"""
element = document.getElementById(element_id)
display_prop = element.style.display
if display_prop and display_prop == 'block':
element.style.display = 'none'
else:
element.style.display = 'block'
def error(msg):
"""Show the error box and add the error message"""
notify_box = document.getElementById('notify_box')
notify_box.style.display = 'block'
notification = document.createElement('div')
notification.classList.add('notify-error')
notification.innerHTML = 'ERROR: {}
'.format(msg)
notify_box.appendChild(notification)
def warning(msg):
"""Show the error box and add the warning message"""
notify_box = document.getElementById('notify_box')
notify_box.style.display = 'block'
notification = document.createElement('div')
notification.classList.add('notify-warning')
notification.innerHTML = 'WARNING: {}
'.format(msg)
notify_box.appendChild(notification)
class OOM(object):
"""Hold OOM object and provide access"""
REC_TIMESTAMP = re.compile(
r'('
r'\[\s+\d+\.\d+\]'
r'|'
r'\[[A-Z]+[\w ]+ +\d{1,2} \d{2}:\d{2}:\d{2} \d{4}\]'
r') ', re.ASCII)
current_line = 0
"""Zero based index of the current line in self.lines"""
lines = []
"""OOM text as list of lines"""
state = "unknown"
"""State of the OOM after initial parsing"""
text = ""
"""OOM as text"""
def __init__(self, text):
# use Unix LF only
text = text.replace('\r\n', '\r')
# Split into lines
oom_lines = []
begin_found = False
end_found = False
for line in text.split('\n'):
if "invoked oom-killer:" in line:
begin_found = True
elif not begin_found:
continue
# Remove leading timestamps
line = self.REC_TIMESTAMP.sub('', line)
# remove empty lines
if not line.strip():
continue
oom_lines.append(line)
# next line will not be part of the oom anymore
if "Killed process" in line:
end_found = True
break
self.current_line = 0
if begin_found and end_found:
self.state = "oom_complete"
elif begin_found and not end_found:
self.state = "oom_started"
else:
self.state = "oom_invalid"
self.lines = oom_lines
self.text = '\n'.join(oom_lines)
def back(self):
"""Return the previous line"""
if self.current_line - 1 < 0:
raise StopIteration()
self.current_line -= 1
return self.lines[self.current_line]
def current(self):
"""Return the current line"""
return self.lines[self.current_line]
def next(self):
"""Return the next line"""
if self.current_line + 1 < len(self.lines):
self.current_line += 1
return self.lines[self.current_line]
raise StopIteration()
def find_text(self, pattern):
"""
Search the pattern and set the position to the first found line.
Otherwise the position pointer won't be changed.
:param pattern: Text to fine
:type pattern: str
:return: True if the marker has found.
"""
for line in self.lines:
if pattern in line:
self.current_line = self.lines.index(line)
return True
return False
def __iter__(self):
return self
def __next__(self):
return self.next()
class OOMAnalyser(object):
"""Analyse an OOM object and calculate additional values"""
REC_INVOKED_OOMKILLER = re.compile(
r'^(?P[\w ]+) invoked oom-killer: '
r'gfp_mask=(?P0x[a-z0-9]+)(\((?P[A-Z_|]+)\))?, '
r'(nodemask=(?P([\d,-]+|\(null\))), )?'
r'order=(?P\d+), '
r'oom_score_adj=(?P\d+)',
re.MULTILINE)
REC_PID_KERNELVERSION = re.compile(
r'^CPU: \d+ PID: (?P\d+) '
r'Comm: .* (Not tainted|Tainted:.*) '
r'(?P\d[\w.-]+) #\d',
re.MULTILINE
)
# split caused by a limited number of iterations during converting PY regex into JS regex
REC_MEMINFO_1 = re.compile(
# head line
r'^Mem-Info:.*'
# first line break
r'(?:\n)'
# first line (starting with a space)
r'^active_anon:(?P\d+) inactive_anon:(?P\d+) '
r'isolated_anon:(?P\d+)'
# next line break
r'(?:\n)'
# remaining lines (with leading space)
r'^ active_file:(?P\d+) inactive_file:(?P\d+) '
r'isolated_file:(?P\d+)'
# next line break
r'(?:\n)'
r'^ unevictable:(?P\d+) dirty:(?P\d+) writeback:(?P\d+) '
r'unstable:(?P\d+)'
# # next line break
# r'(?:\n)'
#
, re.MULTILINE
)
REC_MEMINFO_2 = re.compile(
r'^ slab_reclaimable:(?P\d+) slab_unreclaimable:(?P\d+)'
r'(?:\n)'
r'^ mapped:(?P\d+) shmem:(?P\d+) pagetables:(?P\d+) '
r'bounce:(?P\d+)'
r'(?:\n)'
r'^ free:(?P\d+) free_pcp:(?P\d+) free_cma:(?P\d+)',
re.MULTILINE
)
REC_MEM_NODEINFO = re.compile(r'(^Node \d+ (DMA|Normal|hugepages).*(:?\n))+', re.MULTILINE)
REC_PAGECACHE = re.compile(r'^(?P\d+) total pagecache pages.*$', re.MULTILINE)
REC_SWAP = re.compile(
r'^(?P\d+) pages in swap cache'
r'(?:\n)'
r'^Swap cache stats: add \d+, delete \d+, find \d+/\d+'
r'(?:\n)'
r'^Free swap = (?P\d+)kB'
r'(?:\n)'
r'^Total swap = (?P\d+)kB',
re.MULTILINE)
REC_PAGEINFO = re.compile(
r'^(?P\d+) pages RAM'
r'('
r'(?:\n)'
r'^(?P\d+) pages HighMem/MovableOnly'
r')?'
r'(?:\n)'
r'^(?P\d+) pages reserved'
r'('
r'(?:\n)'
r'^(?P\d+) pages cma reserved'
r')?'
r'('
r'(?:\n)'
r'^(?P\d+) pages in pagetable cache'
r')?'
r'('
r'(?:\n)'
r'^(?P\d+) pages hwpoisoned'
r')?',
re.MULTILINE)
REC_PROCESSES = re.compile(
r'^\[ pid \].*(?:\n)'
r'(^(\[[ \d]+.+)(?:\n))+',
re.MULTILINE)
REC_KILLED = re.compile(
r'^Out of memory: Kill process (?P\d+) \((?P[\w ]+)\) '
r'score (?P\d+) or sacrifice child'
r'(?:\n)'
r'Killed process \d+ \(.*\) total-vm:(?P\d+)kB, anon-rss:(?P\d+)kB, '
r'file-rss:(?P\d+)kB, shmem-rss:(?P\d+)kB',
re.MULTILINE)
lines = []
"""All lines of an OOM without leading timestamps"""
details = {}
"""Extracted result"""
# Reference to the OOM object
oom = None
GFP_FLAGS = {
'GFP_ATOMIC': {'value': '__GFP_HIGH | __GFP_ATOMIC | __GFP_KSWAPD_RECLAIM'},
'GFP_KERNEL': {'value': '__GFP_RECLAIM | __GFP_IO | __GFP_FS'},
'GFP_KERNEL_ACCOUNT': {'value': 'GFP_KERNEL | __GFP_ACCOUNT'},
'GFP_NOWAIT': {'value': '__GFP_KSWAPD_RECLAIM'},
'GFP_NOIO': {'value': '__GFP_RECLAIM'},
'GFP_NOFS': {'value': '__GFP_RECLAIM | __GFP_IO'},
'GFP_USER': {'value': '__GFP_RECLAIM | __GFP_IO | __GFP_FS | __GFP_HARDWALL'},
'GFP_DMA': {'value': '__GFP_DMA'},
'GFP_DMA32': {'value': '__GFP_DMA32'},
'GFP_HIGHUSER': {'value': 'GFP_USER | __GFP_HIGHMEM'},
'GFP_HIGHUSER_MOVABLE': {'value': 'GFP_HIGHUSER | __GFP_MOVABLE'},
'GFP_TRANSHUGE_LIGHT': {'value': 'GFP_HIGHUSER_MOVABLE | __GFP_COMP | __GFP_NOMEMALLOC | __GFP_NOWARN & ~__GFP_RECLAIM'},
'GFP_TRANSHUGE': {'value': 'GFP_TRANSHUGE_LIGHT | __GFP_DIRECT_RECLAIM'},
'__GFP_DMA': {'value': 0x01},
'__GFP_HIGHMEM': {'value': 0x02},
'__GFP_DMA32': {'value': 0x04},
'__GFP_MOVABLE': {'value': 0x08},
'__GFP_RECLAIMABLE': {'value': 0x10},
'__GFP_HIGH': {'value': 0x20},
'__GFP_IO': {'value': 0x40},
'__GFP_FS': {'value': 0x80},
'__GFP_COLD': {'value': 0x100},
'__GFP_NOWARN': {'value': 0x200},
'__GFP_RETRY_MAYFAIL': {'value': 0x400},
'__GFP_NOFAIL': {'value': 0x800},
'__GFP_NORETRY': {'value': 0x1000},
'__GFP_MEMALLOC': {'value': 0x2000},
'__GFP_COMP': {'value': 0x4000},
'__GFP_ZERO': {'value': 0x8000},
'__GFP_NOMEMALLOC': {'value': 0x10000},
'__GFP_HARDWALL': {'value': 0x20000},
'__GFP_THISNODE': {'value': 0x40000},
'__GFP_ATOMIC': {'value': 0x80000},
'__GFP_ACCOUNT': {'value': 0x100000},
'__GFP_DIRECT_RECLAIM': {'value': 0x400000},
'__GFP_WRITE': {'value': 0x800000},
'__GFP_KSWAPD_RECLAIM': {'value': 0x1000000},
'__GFP_NOLOCKDEP': {'value': 0x2000000},
'__GFP_RECLAIM': {'value': '__GFP_DIRECT_RECLAIM|__GFP_KSWAPD_RECLAIM'},
}
"""
Definition of GFP flags
The decimal value of a flag will be calculated by evaluating the entries from left to right. Grouping by
parentheses is not supported.
Source: include/linux/gpf.h
@note : This list os probably a mixture of different kernel versions - be carefully
@todo: Implement kernel specific versions because this flags are not constant
(see https://github.com/torvalds/linux/commit/e67d4ca79aaf9d13a00d229b1b1c96b86828e8ba#diff-020720d0699e3ae1afb6fcd815ca8500)
"""
def __init__(self, oom):
self.details = {}
self.oom = oom
def _extract_block_from_next_pos(self, marker):
"""
Extract a block starting with the marker and add all lines with a leading space character
:rtype: str
"""
block = ''
if not self.oom.find_text(marker):
return block
line = self.oom.current()
block += "{}\n".format(line)
for line in self.oom:
if not line.startswith(' '):
self.oom.back()
break
block += "{}\n".format(line)
return block
def _extract_from_oom_text(self):
"""Extract details from OOM message text"""
for rec in [self.REC_INVOKED_OOMKILLER,
self.REC_KILLED,
self.REC_MEMINFO_1,
self.REC_MEMINFO_2,
self.REC_PAGECACHE,
self.REC_PAGEINFO,
self.REC_PID_KERNELVERSION,
self.REC_SWAP,
]:
match = rec.search(self.oom.text)
if match:
self.details.update(match.groupdict())
for groupname, rec in [('mem_node_info', self.REC_MEM_NODEINFO),
('process_table', self.REC_PROCESSES),
]:
match = rec.search(self.oom.text)
if match:
self.details[groupname] = match.group()
self.details['hardware_info'] = self._extract_block_from_next_pos('Hardware name:')
# strip "Call Trace" line at beginning and remove leading spaces
call_trace = ''
block = self._extract_block_from_next_pos('Call Trace:')
for line in block.split('\n'):
if line.startswith('Call Trace'):
continue
call_trace += "{}\n".format(line.strip())
self.details['call_trace'] = call_trace
def _hex2flags(self, hexvalue, flag_definition):
"""\
Convert the hexadecimal value into flags specified by definition
@return: list of flags and the decimal sum of all unknown flags
"""
remaining = int(hexvalue, 16)
converted_flags = []
# __pragma__ ('jsiter')
for flag in flag_definition:
value = self._flag2decimal(flag, flag_definition)
if remaining & value:
# delete flag by "and" with a reverted mask
remaining &= ~value
converted_flags.append(flag)
# __pragma__ ('nojsiter')
return converted_flags, remaining
def _flag2decimal(self, flag, flag_definition):
"""\
Convert a single flag into a decimal value
"""
if flag not in flag_definition:
error('No definition for flag {} found'.format(flag))
return 0
value = flag_definition[flag]['value']
if isinstance(value, int):
return value
tokenlist = iter(re.split('([|&])', value))
operator = None
negate_rvalue = False
lvalue = 0
while True:
try:
token = next(tokenlist)
except StopIteration:
break
token = token.strip()
if token in ['|', '&']:
operator = token
continue
if token.startswith('~'):
token = token[1:]
negate_rvalue = True
if token.isdigit():
rvalue = int(token)
elif token.startswith('0x') and token[2:].isdigit():
rvalue = int(token, 16)
else:
# it's not a decimal nor a hexadecimal value - reiterate assuming it's a flag string
rvalue = self._flag2decimal(token, flag_definition)
if negate_rvalue:
rvalue = ~rvalue
if operator == '|':
lvalue |= rvalue
elif operator == '&':
lvalue &= rvalue
operator = None
negate_rvalue = False
return lvalue
def _calc_from_oom_details(self):
"""
Calculate values from already extracted details
@see: self.details
"""
# convert all *_pages and *_kb to integer
# __pragma__ ('jsiter')
for item in self.details:
if self.details[item] is None:
self.details[item] = ''
continue
if item.endswith('_kb') or item.endswith('_pages'):
try:
self.details[item] = int(self.details[item])
except:
error('Converting item {}: {} to integer failed'.format(item, self.details[item]))
# __pragma__ ('nojsiter')
kernel_version = self.details.get('kernel_version', '')
if 'x86_64' in kernel_version:
self.details['platform'] = 'x86 64bit'
else:
self.details['platform'] = 'unknown'
# guess distribution from kernel version
if '.el7' in kernel_version:
self.details['dist'] = 'RHEL 7/CentOS 7'
elif '.el6' in kernel_version:
self.details['dist'] = 'RHEL 6/CentOS 6'
elif '.el5' in kernel_version:
self.details['dist'] = 'RHEL 5/CentOS 5'
elif 'ARCH' in kernel_version:
self.details['dist'] = 'Arch Linux'
elif '_generic' in kernel_version:
self.details['dist'] = 'Ubuntu'
else:
self.details['dist'] = 'unknown'
# educated guess
self.details['page_size'] = 4
self.details['swap_cache_kb'] = self.details['swap_cache_pages'] * self.details['page_size']
del self.details['swap_cache_pages']
# SwapUsed = SwapTotal - SwapFree - SwapCache
self.details['swap_used_kb'] = self.details['swap_total_kb'] - self.details['swap_free_kb'] - \
self.details['swap_cache_kb']
self.details['trigger_proc_requested_memory'] = 2**self.details['trigger_proc_order']
self.details['trigger_proc_requested_memory_kbytes'] = self.details['page_size']
# process gfp_mask
if self.details['trigger_proc_gfp_flags'] != '': # None has been is converted to ''
flags = self.details['trigger_proc_gfp_flags']
del self.details['trigger_proc_gfp_flags']
else:
flags, unknown = self._hex2flags(self.details['trigger_proc_gfp_mask'], self.GFP_FLAGS)
if unknown:
# TODO Missing format specifier {0:x} in Transcrypt?
flags.append('0x{}'.format(unknown.toString(16)))
flags = ' | '.join(flags)
self.details['trigger_proc_gfp_mask'] = '{} ({})'.format(self.details['trigger_proc_gfp_mask'], flags)
# already fully processed and no own element to display -> delete otherwise an error msg will be shown
del self.details['trigger_proc_gfp_flags']
def analyse(self):
"""Return the analysis of the given OOM object"""
self._extract_from_oom_text()
self._calc_from_oom_details()
return self.details
class OOMDisplay(object):
"""Display the OOM analysis"""
oom_details = {}
"""Extracted result"""
example = u'''\
sed invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0
sed cpuset=/ mems_allowed=0-1
CPU: 4 PID: 29481 Comm: sed Not tainted 3.10.0-514.6.1.el7.x86_64 #1
Hardware name: HP ProLiant DL385 G7, BIOS A18 12/08/2012
ffff880182272f10 00000000021dcb0a ffff880418207938 ffffffff816861ac
ffff8804182079c8 ffffffff81681157 ffffffff810eab9c ffff8804182fe910
ffff8804182fe928 0000000000000202 ffff880182272f10 ffff8804182079b8
Call Trace:
[] dump_stack+0x19/0x1b
[] dump_header+0x8e/0x225
[] ? ktime_get_ts64+0x4c/0xf0
[] ? delayacct_end+0x8f/0xb0
[] oom_kill_process+0x24e/0x3c0
[] ? oom_unkillable_task+0xcd/0x120
[] ? find_lock_task_mm+0x56/0xc0
[] ? has_capability_noaudit+0x1e/0x30
[] out_of_memory+0x4b6/0x4f0
[] __alloc_pages_slowpath+0x5d7/0x725
[] __alloc_pages_nodemask+0x405/0x420
[] alloc_pages_current+0xaa/0x170
[] __page_cache_alloc+0x97/0xb0
[] filemap_fault+0x170/0x410
[] ext4_filemap_fault+0x36/0x50 [ext4]
[] __do_fault+0x4c/0xc0
[] do_read_fault.isra.42+0x43/0x130
[] handle_mm_fault+0x6b1/0xfe0
[] ? do_mmap_pgoff+0x305/0x3c0
[] __do_page_fault+0x154/0x450
[] do_page_fault+0x35/0x90
[] page_fault+0x28/0x30
Mem-Info:
active_anon:7355653 inactive_anon:660960 isolated_anon:0
active_file:1263 inactive_file:1167 isolated_file:32
unevictable:0 dirty:4 writeback:0 unstable:0
slab_reclaimable:27412 slab_unreclaimable:13708
mapped:4818 shmem:87896 pagetables:25222 bounce:0
free:39513 free_pcp:2958 free_cma:0
Node 0 DMA free:15872kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15992kB managed:15908kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes lowmem_reserve[]: 0 2780 15835 15835
Node 0 DMA32 free:59728kB min:7832kB low:9788kB high:11748kB active_anon:2154380kB inactive_anon:604748kB active_file:500kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3094644kB managed:2848912kB mlocked:0kB dirty:0kB writeback:0kB mapped:4016kB shmem:5140kB slab_reclaimable:6448kB slab_unreclaimable:2796kB kernel_stack:1040kB pagetables:6876kB unstable:0kB bounce:0kB free_pcp:3788kB local_pcp:228kB free_cma:0kB writeback_tmp:0kB pages_scanned:28 all_unreclaimable? no lowmem_reserve[]: 0 0 13055 13055
Node 0 Normal free:36692kB min:36784kB low:45980kB high:55176kB active_anon:12301636kB inactive_anon:793132kB active_file:604kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):128kB present:13631488kB managed:13368348kB mlocked:0kB dirty:0kB writeback:0kB mapped:4108kB shmem:207940kB slab_reclaimable:47900kB slab_unreclaimable:28884kB kernel_stack:6624kB pagetables:43340kB unstable:0kB bounce:0kB free_pcp:4204kB local_pcp:640kB free_cma:0kB writeback_tmp:0kB pages_scanned:128 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0
Node 1 Normal free:49436kB min:45444kB low:56804kB high:68164kB active_anon:14967844kB inactive_anon:1244560kB active_file:1552kB inactive_file:1992kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:16777212kB managed:16514220kB mlocked:0kB dirty:16kB writeback:0kB mapped:10760kB shmem:138504kB slab_reclaimable:55300kB slab_unreclaimable:23152kB kernel_stack:6176kB pagetables:50672kB unstable:0kB bounce:0kB free_pcp:3360kB local_pcp:248kB free_cma:0kB writeback_tmp:0kB pages_scanned:125777 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15872kB
Node 0 DMA32: 203*4kB (UEM) 231*8kB (UEM) 259*16kB (UEM) 231*32kB (UEM) 157*64kB (UEM) 90*128kB (UEM) 49*256kB (UEM) 20*512kB (UE) 3*1024kB (UEM) 1*2048kB (M) 0*4096kB = 63668kB
Node 0 Normal: 1231*4kB (UEM) 391*8kB (UEM) 456*16kB (UEM) 342*32kB (UEM) 141*64kB (UEM) 23*128kB (UEM) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 38260kB
Node 1 Normal: 2245*4kB (UEM) 732*8kB (UEM) 594*16kB (UEM) 396*32kB (UEM) 160*64kB (UEM) 16*128kB (UEM) 2*256kB (UM) 0*512kB 1*1024kB (M) 0*2048kB 0*4096kB = 50836kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
100155 total pagecache pages
11342 pages in swap cache
Swap cache stats: add 31260615, delete 31249273, find 295999950/297583545
Free swap = 0kB
Total swap = 8388604kB
8379834 pages RAM
0 pages HighMem/MovableOnly
192987 pages reserved
[ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
[ 390] 0 390 39012 6739 78 51 0 systemd-journal
[ 433] 0 433 11104 2 22 360 -1000 systemd-udevd
[ 530] 0 530 13854 28 27 83 -1000 auditd
[ 559] 0 559 7692 65 19 87 0 systemd-logind
[ 563] 0 563 4817 41 14 36 0 irqbalance
[ 569] 87 569 7684 52 20 48 -900 dbus-daemon
[ 587] 32 587 16240 17 34 116 0 rpcbind
[ 647] 0 647 50303 11 36 113 0 gssproxy
[ 796] 0 796 193856 2897 207 112 0 rsyslogd
[ 818] 0 818 13177 0 27 146 0 vsftpd
[ 840] 0 840 62892 9 36 103 0 ypbind
[ 868] 0 868 21663 28 43 191 -1000 sshd
[ 871] 29 871 11126 2 25 222 0 rpc.statd
[ 907] 0 907 8044 4 21 53 0 atd
[ 916] 0 916 27509 2 10 30 0 agetty
[ 934] 0 934 27509 2 10 31 0 agetty
[ 1255] 0 1255 45716 1 39 337 0 rscd
[ 1268] 0 1268 45746 28 38 353 0 rscd
[ 1269] 0 1269 45716 29 38 311 0 rscd
[ 1285] 0 1285 23290 25 45 235 0 master
[ 1287] 89 1287 23379 52 47 242 0 qmgr
[ 1830] 0 1830 446643 959 68 1234 0 ovcd
[ 2062] 0 2062 144894 511 37 309 0 ovbbccb
[ 2121] 0 2121 33138 26 19 138 0 crond
[ 2136] 38 2136 7846 40 19 88 0 ntpd
[ 2451] 0 2451 177827 0 36 816 0 ovconfd
[ 8145] 0 8145 300303 1616 58 692 0 hpsensor
[ 8204] 0 8204 31508 119 31 328 0 opcmsgi
[ 8405] 0 8405 201479 1289 49 244 0 opcmsga
[ 8472] 0 8472 134080 236 46 514 0 opcmona
[ 8596] 0 8596 31377 172 29 301 0 opcle
[ 8658] 0 8658 81199 124 34 336 0 opcacta
[ 8685] 0 8685 137169 23313 97 3256 0 oacore
[ 6330] 12345 6330 7520 15 18 61 0 rotatelogs
[ 6331] 12345 6331 28318 0 12 83 0 run.sh
[ 6576] 12345 6576 8478546 5157063 15483 1527848 0 java
[27171] 12345 27171 7522 10 18 58 0 rotatelogs
[27172] 12345 27172 28320 3 11 94 0 run.sh
[27502] 12345 27502 4029300 2716569 6505 226225 0 java
[11729] 0 11729 64122 5003 79 2465 0 snmpd
[12130] 0 12130 122202 565 29 175 0 hpasmlited
[12166] 0 12166 11905 89 24 121 0 cmahealthd
[12190] 0 12190 11871 89 24 119 0 cmastdeqd
[12214] 0 12214 13707 84 31 211 0 cmahostd
[12237] 0 12237 12493 38 28 352 0 cmathreshd
[12276] 0 12276 12368 45 30 210 0 cmasm2d
[12299] 0 12299 12485 43 26 282 0 cmaperfd
[12324] 0 12324 31932 184 31 143 0 cmapeerd
[12352] 0 12352 14280 48 32 169 0 cmaeventd
[12379] 0 12379 14831 26 30 198 0 cmafcad
[12407] 0 12407 11806 12 25 128 0 cmasasd
[12436] 0 12436 14364 86 31 181 0 cmaidad
[12463] 0 12463 11288 15 25 125 0 cmaided
[12492] 0 12492 11805 14 26 127 0 cmascsid
[12523] 0 12523 92228 129 63 433 0 cmanicd
[14002] 0 14002 11803 12 25 128 0 cmasm2d
[32615] 0 32615 36254 323 73 7 0 sshd
[ 894] 12345 894 36254 328 70 5 0 sshd
[ 895] 12345 895 3389 123 11 0 0 ksh
[10620] 0 10620 36254 328 72 0 0 sshd
[10634] 38714 10634 36290 329 70 8 0 sshd
[10635] 38714 10635 14221 25 31 124 0 sftp-server
[29021] 0 29021 36254 314 69 0 0 sshd
[29025] 12345 29025 36254 316 67 0 0 sshd
[29026] 12345 29026 29286 96 12 1 0 ksh
[29051] 12345 29051 29494 330 12 74 0 svr05
[29979] 12345 29979 1666 42 9 0 0 less
[29662] 89 29662 23316 258 43 0 0 pickup
[26065] 89 26065 23317 256 45 0 0 trivial-rewrite
[26066] 89 26066 23353 265 45 0 0 cleanup
[26067] 89 26067 23368 271 45 0 0 smtp
[26743] 0 26743 36254 314 68 0 0 sshd
[26937] 12345 26937 36254 314 67 0 0 sshd
[26938] 12345 26938 29286 96 11 0 0 ksh
[27122] 12345 27122 29494 459 12 0 0 svr05
[28657] 0 28657 36254 314 74 0 0 sshd
[28702] 12345 28702 36254 314 72 0 0 sshd
[28703] 12345 28703 29286 97 11 0 0 ksh
[28993] 0 28993 36254 314 72 0 0 sshd
[28996] 12345 28996 29526 531 12 0 0 svr05
[29006] 12345 29006 36254 314 69 0 0 sshd
[29007] 12345 29007 29286 96 11 0 0 ksh
[29110] 12345 29110 29558 745 12 0 0 svr05
[29481] 12345 29481 29214 58 14 0 0 sed
[29752] 12345 29752 7522 296 19 0 0 rotatelogs
Out of memory: Kill process 6576 (java) score 651 or sacrifice child
Killed process 6576 (java) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0kB, shmem-rss:0kB
'''
mem_modinfo_entries = ("active_anon_pages", "inactive_anon_pages", "isolated_anon_pages",
"active_file_pages", "inactive_file_pages", "isolated_file_pages",
"unevictable_pages", "dirty_pages", "writeback_pages", "unstable_pages",
"slab_reclaimable_pages", "slab_unreclaimable_pages",
"mapped_pages", "shmem_pages", "pagetables_pages", "bounce_pages",
"free_pages", "free_pcp_pages", "free_cma_pages",
)
svg_namespace = 'http://www.w3.org/2000/svg'
# from Sasha Trubetskoy - https://sashat.me/2017/01/11/list-of-20-simple-distinct-colors/
svg_colours = [
'#e6194b', # Red
'#3cb44b', # Green
'#ffe119', # Yellow
'#0082c8', # Blue
'#f58231', # Orange
'#911eb4', # Purple
'#46f0f0', # Cyan
'#f032e6', # Magenta
'#d2f53c', # Lime
'#fabebe', # Pink
'#008080', # Teal
'#e6beff', # Lavender
'#aa6e28', # Brown
'#fffac8', # Beige
'#800000', # Maroon
'#aaffc3', # Mint
'#808000', # Olive
'#ffd8b1', # Coral
'#000080', # Navy
'#808080', # Grey
]
def __init__(self):
self.set_HTML_defaults()
element = document.getElementById('version')
element.textContent = "v{}".format(VERSION)
def _set_single_item(self, item):
"""
Set content of a single item to the HTML element with the same name.
The content won't be formatted.
"""
element = document.getElementById(item)
if not element:
print("ERROR: HTML element not found: ", item)
return
content = self.oom_details.get(item, '')
if isinstance(content, str):
content = content.strip()
element.textContent = content
if content == '':
row = element.parentNode
row.classList.add('hide_tablerow')
elif item.endswith('_kb'):
element.classList.add('kbytes')
elif item.endswith('_pages'):
element.classList.add('pages')
if DEBUG:
show_element('notify_box')
def set_HTML_defaults(self, clean_oom=True):
"""Reset the whole HTML document"""
if clean_oom:
document.getElementById('textarea_oom').value = ""
hide_element("analysis")
hide_element("notify_box")
show_element("input")
# show hidden rows
for element in document.getElementsByClassName('hide_tablerow'):
element.classList.remove('hide_tablerow')
for item in self.mem_modinfo_entries:
element = document.getElementById(item)
element.textContent = ""
# clear notification box
element = document.getElementById('notify_box')
while element.firstChild:
element.removeChild(element.firstChild)
hide_element('notify_box')
# remove svg charts
for element_id in ('svg_swap', 'svg_ram'):
element = document.getElementById(element_id)
while element.firstChild:
element.removeChild(element.firstChild)
def svg_create_element(self, height, width):
"""Return an empty SVG element"""
svg = document.createElementNS(self.svg_namespace, 'svg')
svg.setAttribute('version', '1.1')
svg.setAttribute('height', height)
svg.setAttribute('width', width)
svg.setAttribute('viewBox', '0 0 {} {}'.format(width, height))
return svg
def svg_create_rect(self, x=0, y=0, width=0, height=0, colour=None):
rect = document.createElementNS(self.svg_namespace, 'rect')
if x:
rect.setAttribute('x', x)
if y:
rect.setAttribute('y', y)
if width:
rect.setAttribute('width', width)
if height:
rect.setAttribute('height', height)
if colour:
rect.setAttribute('fill', colour)
return rect
def svg_generate_bar_chart(self, *elements):
"""Generate a SVG bar chart"""
bar_height = 100
label_height = 80
length_factor = 4
overall_height = bar_height + label_height
overall_width = 100 * length_factor
svg = self.svg_create_element(overall_height, overall_width)
sum_all_elements = sum([length for unused, length in elements])
current_pos = 0
bar_group = document.createElementNS(self.svg_namespace, 'g')
bar_group.setAttribute('id', 'bar_group')
bar_group.setAttribute('stroke', 'black')
bar_group.setAttribute('stroke-width', 2)
nr_processed_elements = 0
for title, length in elements:
rect_len = int(100 * length / sum_all_elements) * length_factor
if not rect_len:
continue
colour = self.svg_colours[nr_processed_elements % len(self.svg_colours)]
rect = self.svg_create_rect(current_pos, 0, rect_len, bar_height, colour)
bar_group.appendChild(rect)
label_group = document.createElementNS(self.svg_namespace, 'g')
label_group.setAttribute('id', title)
colour_rect = self.svg_create_rect(0, 0, 20, 20, colour)
colour_rect.setAttribute('stroke', 'black')
colour_rect.setAttribute('stroke-width', 2)
text = document.createElementNS(self.svg_namespace, 'text')
text.setAttribute('x', '30')
text.setAttribute('y', '18')
text.textContent = title
label_group.appendChild(colour_rect)
label_group.appendChild(text)
# TODO replace hardcoded values
x = 5 + 125 * (nr_processed_elements // 2)
y = bar_height + 10 + (nr_processed_elements % 2) * 40
label_group.setAttribute('transform', 'translate({}, {})'.format(x, y))
bar_group.appendChild(label_group)
current_pos += rect_len
nr_processed_elements += 1
svg.appendChild(bar_group)
return svg
def copy_example_to_form(self):
document.getElementById('textarea_oom').value = self.example
def reset_form(self):
self.set_HTML_defaults()
def toggle_oom(self, show=False):
"""Toggle the visibility of the full OOM message"""
oom_element = document.getElementById('oom')
row_with_oom = oom_element.parentNode.parentNode
toggle_msg = document.getElementById('oom_toogle_msg')
if show or row_with_oom.classList.contains('hide_tablerow'):
row_with_oom.classList.remove('hide_tablerow')
toggle_msg.text = "(click to hide)"
else:
row_with_oom.classList.add('hide_tablerow')
toggle_msg.text = "(click to show)"
def analyse_and_show(self):
"""Analyse the OOM text inserted into the form and show the results"""
self.oom = OOM(self.load_from_form())
if not self.is_valid(self.oom):
self.oom = None
return
# set defaults
self.oom_details.clear()
self.set_HTML_defaults(False)
# analyse
analyser = OOMAnalyser(self.oom)
analyser.analyse()
self.oom_details = analyser.details
# display results
self.show()
def load_from_form(self):
element = document.getElementById('textarea_oom')
oom_text = element.value
return oom_text
def is_valid(self, oom):
"""
Return True for a complete OOM otherwise False and a warning msg for a incomplete or an error msg
if the start sequence was not found.
"""
if oom.state == "oom_complete":
return True
elif oom.state == "oom_started":
warning('The inserted OOM is incomplete - only the beginning has found.')
warning('The result may be incomplete!')
elif oom.state == "oom_invalid":
error('The inserted text is not a valid OOM!')
else:
error('Invalid state "{}" after the OOM has formally checked!'.format(self.oom.state))
return False
def show(self):
"""
Show all extracted details as well as additionally generated information
"""
if DEBUG:
print(self.oom_details)
hide_element("input")
show_element("analysis")
for item in self.oom_details.keys():
self._set_single_item(item)
svg_swap = self.svg_generate_bar_chart(
('Swap Used', self.oom_details['swap_used_kb']),
('Swap Free', self.oom_details['swap_free_kb']),
('Swap Cached', self.oom_details['swap_cache_kb']),
)
elem_svg_swap = document.getElementById('svg_swap')
elem_svg_swap.appendChild(svg_swap)
svg_ram = self.svg_generate_bar_chart(
('Active mem', self.oom_details['active_anon_pages']),
('Inactive mem', self.oom_details['inactive_anon_pages']),
('Isolated mem', self.oom_details['isolated_anon_pages']),
('Active PC', self.oom_details['active_file_pages']),
('Inactive PC', self.oom_details['inactive_file_pages']),
('Isolated PC', self.oom_details['isolated_file_pages']),
('Unevictable', self.oom_details['unevictable_pages']),
('Dirty', self.oom_details['dirty_pages']),
('Writeback', self.oom_details['writeback_pages']),
('Unstable', self.oom_details['unstable_pages']),
('Slab reclaimable', self.oom_details['slab_reclaimable_pages']),
('Slab unreclaimable', self.oom_details['slab_unreclaimable_pages']),
('Mapped', self.oom_details['mapped_pages']),
('Shared', self.oom_details['shmem_pages']),
('Pagetable', self.oom_details['pagetables_pages']),
('Bounce', self.oom_details['bounce_pages']),
('Free', self.oom_details['free_pages']),
('Free PCP', self.oom_details['free_pcp_pages']),
('Free CMA', self.oom_details['free_cma_pages']),
)
elem_svg_ram = document.getElementById('svg_ram')
elem_svg_ram.appendChild(svg_ram)
element = document.getElementById('oom')
element.textContent = self.oom.text
self.toggle_oom(show=False)
OOMDisplayInstance = OOMDisplay()