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OOMAnalyser.py
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@ -273,7 +273,7 @@ class BaseKernelConfig:
"Trigger process and kernel version": (
r"^CPU: \d+ PID: (?P<trigger_proc_pid>\d+) "
r"Comm: .* (Not tainted|Tainted:.*) "
r"(?P<kernel_version>\d[\w.-]+) (?:#\d) (?P<distribution>\w+ \w+).+",
r"(?P<kernel_version>\d[\w.-]+) #\d",
True,
),
# split caused by a limited number of iterations during converting PY regex into JS regex
@ -293,13 +293,12 @@ class BaseKernelConfig:
True,
),
"Overall Mem-Info (part 2)": (
r"slab_reclaimable:(?P<slab_reclaimable_pages>\d+) slab_unreclaimable:(?P<slab_unreclaimable_pages>\d+)"
r"^ slab_reclaimable:(?P<slab_reclaimable_pages>\d+) slab_unreclaimable:(?P<slab_unreclaimable_pages>\d+)"
r"(?:\n)"
r" +mapped:(?P<mapped_pages>\d+) shmem:(?P<shmem_pages>\d+) pagetables:(?P<pagetables_pages>\d+) bounce:(?P<bounce_pages>\d+)"
r"^ mapped:(?P<mapped_pages>\d+) shmem:(?P<shmem_pages>\d+) pagetables:(?P<pagetables_pages>\d+) "
r"bounce:(?P<bounce_pages>\d+)"
r"(?:\n)"
r" +kernel_misc_reclaimable:(?P<kernel_misc_reclaimable>\d+)"
r"(?:\n)"
r" +free:(?P<free_pages>\d+) free_pcp:(?P<free_pcp_pages>\d+) free_cma:(?P<free_cma_pages>\d+)",
r"^ free:(?P<free_pages>\d+) free_pcp:(?P<free_pcp_pages>\d+) free_cma:(?P<free_cma_pages>\d+)",
True,
),
"Available memory chunks": (
@ -2584,13 +2583,15 @@ class KernelConfig_6_1(KernelConfig_6_0):
EXTRACT_PATTERN_OVERLAY_61 = {
"Overall Mem-Info (part 2)": (
r" +slab_reclaimable:(?P<slab_reclaimable_pages>\d+) slab_unreclaimable:(?P<slab_unreclaimable_pages>\d+)"
r"^ slab_reclaimable:(?P<slab_reclaimable_pages>\d+) slab_unreclaimable:(?P<slab_unreclaimable_pages>\d+)"
r"(?:\n)"
r" +mapped:(?P<mapped_pages>\d+) shmem:(?P<shmem_pages>\d+) pagetables:(?P<pagetables_pages>\d+) bounce:(?P<bounce_pages>\d+)"
r"^ mapped:(?P<mapped_pages>\d+) shmem:(?P<shmem_pages>\d+) pagetables:(?P<pagetables_pages>\d+)"
r"(?:\n)"
r" +kernel_misc_reclaimable:(?P<kernel_misc_reclaimable>\d+)"
r"^ sec_pagetables:(?P<sec_pagetables>\d+) bounce:(?P<bounce_pages>\d+)"
r"(?:\n)"
r" +free:(?P<free_pages>\d+) free_pcp:(?P<free_pcp_pages>\d+) free_cma:(?P<free_cma_pages>\d+)",
r"^ kernel_misc_reclaimable:(?P<kernel_misc_reclaimable>\d+)"
r"(?:\n)"
r"^ free:(?P<free_pages>\d+) free_pcp:(?P<free_pcp_pages>\d+) free_cma:(?P<free_cma_pages>\d+)",
True,
),
}
@ -2975,7 +2976,7 @@ class OOMAnalyser:
"""
REC_KERNEL_VERSION = re.compile(
r"CPU: \d+ PID: \d+ Comm: .* (Not tainted|Tainted: [A-Z ]+) (?P<kernel_version>\d[\w.-]+) (?:#\d) (?P<distribution>\w+ \w+).+"
r"CPU: \d+ PID: \d+ Comm: .* (Not tainted|Tainted: [A-Z ]+) (?P<kernel_version>\d[\w.-]+) #.+"
)
"""RE to match the OOM line with kernel version"""
@ -3662,17 +3663,13 @@ class OOMAnalyser:
def _determinate_platform_and_distribution(self):
"""Determinate platform and distribution"""
kernel_version = self.oom_result.details.get("kernel_version", "")
distribution = self.oom_result.details.get("distribution", None)
if "x86_64" in kernel_version:
self.oom_result.details["platform"] = "x86 64bit"
else:
self.oom_result.details["platform"] = "unknown"
dist = "unknown"
if distribution is not None:
# this should work on openSUSE
dist = distribution
elif ".el7uek" in kernel_version:
if ".el7uek" in kernel_version:
dist = "Oracle Linux 7 (Unbreakable Enterprise Kernel)"
elif ".el7" in kernel_version:
dist = "RHEL 7/CentOS 7"
@ -4060,218 +4057,223 @@ class OOMDisplay:
@rtype: OOMResult
"""
example_tumbleweed_swap = """\
[ 5907.004253] MonsterApp invoked oom-killer: gfp_mask=0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), order=0, oom_score_adj=0
[ 5907.004262] CPU: 2 PID: 3271 Comm: MonsterApp Not tainted 6.0.3-1-default #1 openSUSE Tumbleweed 50a6ebc5cb1873d6b9c639843cdd1ed0089a1281
[ 5907.004266] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
[ 5907.004268] Call Trace:
[ 5907.004272] <TASK>
[ 5907.004275] dump_stack_lvl+0x44/0x5c
[ 5907.004282] dump_header+0x4a/0x1ff
[ 5907.004286] oom_kill_process.cold+0xb/0x10
[ 5907.004290] out_of_memory+0x1fd/0x4d0
[ 5907.004295] __alloc_pages_slowpath.constprop.0+0xcb0/0xe00
[ 5907.004303] __alloc_pages+0x218/0x240
[ 5907.004308] __folio_alloc+0x17/0x50
[ 5907.004311] ? policy_node+0x51/0x70
[ 5907.004314] vma_alloc_folio+0x88/0x300
[ 5907.004318] __handle_mm_fault+0x946/0xfa0
[ 5907.004324] handle_mm_fault+0xae/0x290
[ 5907.004327] do_user_addr_fault+0x1ba/0x690
[ 5907.004332] exc_page_fault+0x66/0x150
[ 5907.004337] asm_exc_page_fault+0x22/0x30
[ 5907.004340] RIP: 0033:0x4011c1
[ 5907.004347] Code: Unable to access opcode bytes at RIP 0x401197.
[ 5907.004348] RSP: 002b:00007ffc77b3e4d0 EFLAGS: 00010206
[ 5907.004351] RAX: 00007f1d0508d000 RBX: 00007ffc77b3e608 RCX: 00007f2793922ca7
[ 5907.004353] RDX: 0000000115bfcff0 RSI: 0000000000000000 RDI: 0000000000000000
[ 5907.004354] RBP: 00007ffc77b3e4f0 R08: 00000000ffffffff R09: 0000000000000000
[ 5907.004356] R10: 00007ffc77b3e490 R11: 0000000000000202 R12: 0000000000000000
[ 5907.004357] R13: 00007ffc77b3e618 R14: 0000000000403de0 R15: 00007f2793a8b000
[ 5907.004362] </TASK>
[ 5907.004363] Mem-Info:
[ 5907.004366] active_anon:65916 inactive_anon:861964 isolated_anon:0
active_file:121 inactive_file:511 isolated_file:0
unevictable:2024 dirty:16 writeback:34
slab_reclaimable:6584 slab_unreclaimable:10454
mapped:28 shmem:2167 pagetables:2902 bounce:0
kernel_misc_reclaimable:0
free:26340 free_pcp:0 free_cma:0
[ 5907.004371] Node 0 active_anon:263664kB inactive_anon:3447856kB active_file:484kB inactive_file:2044kB unevictable:8096kB isolated(anon):0kB isolated(file):0kB mapped:112kB dirty:64kB writeback:136kB shmem:8668kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 909312kB writeback_tmp:0kB kernel_stack:3104kB pagetables:11608kB all_unreclaimable? yes
[ 5907.004377] Node 0 DMA free:14336kB boost:0kB min:128kB low:160kB high:192kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15996kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 5907.004383] lowmem_reserve[]: 0 1946 7904 7904 7904
[ 5907.004387] Node 0 DMA32 free:40428kB boost:0kB min:16608kB low:20760kB high:24912kB reserved_highatomic:0KB active_anon:316kB inactive_anon:1967132kB active_file:32kB inactive_file:36kB unevictable:0kB writepending:320kB present:2077504kB managed:2011712kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 5907.004393] lowmem_reserve[]: 0 0 5957 5957 5957
[ 5907.004397] Node 0 Normal free:50596kB boost:0kB min:50844kB low:63552kB high:76260kB reserved_highatomic:0KB active_anon:263100kB inactive_anon:1480748kB active_file:304kB inactive_file:1876kB unevictable:8096kB writepending:64kB present:6291456kB managed:1914680kB mlocked:80kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 5907.004413] lowmem_reserve[]: 0 0 0 0 0
[ 5907.004420] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 3*4096kB (M) = 14336kB
[ 5907.004433] Node 0 DMA32: 82*4kB (UME) 32*8kB (UME) 40*16kB (UME) 12*32kB (UE) 19*64kB (U) 14*128kB (UME) 8*256kB (UE) 4*512kB (UE) 31*1024kB (UME) 0*2048kB 0*4096kB = 40456kB
[ 5907.004472] Node 0 Normal: 847*4kB (UME) 652*8kB (UME) 285*16kB (UME) 66*32kB (UME) 53*64kB (UME) 23*128kB (UME) 9*256kB (UE) 5*512kB (UME) 24*1024kB (UM) 0*2048kB 0*4096kB = 51052kB
[ 5907.004490] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[ 5907.004492] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[ 5907.004494] 293046 total pagecache pages
[ 5907.004495] 290241 pages in swap cache
[ 5907.004496] Free swap = 0kB
[ 5907.004497] Total swap = 2098152kB
[ 5907.004498] 2096239 pages RAM
[ 5907.004499] 0 pages HighMem/MovableOnly
[ 5907.004500] 1110801 pages reserved
[ 5907.004500] 0 pages cma reserved
[ 5907.004501] 0 pages hwpoisoned
[ 5907.004502] Tasks state (memory values in pages):
[ 5907.004503] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[ 5907.004514] [ 557] 0 557 14420 823 110592 7 -250 systemd-journal
[ 5907.004518] [ 561] 0 561 8103 282 81920 274 -1000 systemd-udevd
[ 5907.004522] [ 643] 0 643 2096 604 49152 360 0 haveged
[ 5907.004525] [ 749] 0 749 2828 65 40960 3 -1000 auditd
[ 5907.004528] [ 755] 483 755 2156 241 49152 16 -900 dbus-daemon
[ 5907.004531] [ 757] 0 757 19909 80 53248 3 0 irqbalance
[ 5907.004533] [ 777] 0 777 1542 119 53248 13 0 rngd
[ 5907.004540] [ 782] 478 782 211645 561 151552 22 0 nscd
[ 5907.004543] [ 810] 0 810 4331 280 73728 18 0 systemd-logind
[ 5907.004546] [ 848] 0 848 60288 0 90112 704 0 pcscd
[ 5907.004549] [ 849] 0 849 2384 237 61440 74 0 wickedd-auto4
[ 5907.004552] [ 851] 0 851 2385 108 57344 208 0 wickedd-dhcp4
[ 5907.004554] [ 854] 0 854 2422 63 53248 264 0 wickedd-dhcp6
[ 5907.004557] [ 863] 477 863 58964 99 102400 412 0 polkitd
[ 5907.004559] [ 864] 0 864 2414 131 53248 225 0 wickedd
[ 5907.004562] [ 874] 0 874 2419 62 53248 264 0 wickedd-nanny
[ 5907.004564] [ 1085] 472 1085 3699 36 69632 176 0 vncmanager
[ 5907.004567] [ 1089] 0 1089 803 38 45056 3 0 agetty
[ 5907.004570] [ 1107] 0 1107 3438 49 61440 209 -1000 sshd
[ 5907.004573] [ 1108] 476 1108 21312 176 65536 36 0 chronyd
[ 5907.004576] [ 1146] 0 1146 76363 58 90112 703 0 lightdm
[ 5907.004578] [ 1155] 0 1155 59117 732 94208 22 0 accounts-daemon
[ 5907.004581] [ 1165] 0 1165 204230 4060 450560 3612 0 Xorg.bin
[ 5907.004583] [ 1201] 0 1201 40196 132 90112 640 0 lightdm
[ 5907.004586] [ 1213] 1000 1213 4860 432 77824 71 100 systemd
[ 5907.004589] [ 1214] 1000 1214 26171 715 94208 248 100 (sd-pam)
[ 5907.004591] [ 1221] 1000 1221 1846 0 49152 69 0 icewm-session
[ 5907.004594] [ 1237] 1000 1237 2056 86 49152 11 200 dbus-daemon
[ 5907.004597] [ 1293] 1000 1293 1598 123 45056 14 0 ssh-agent
[ 5907.004603] [ 1294] 1000 1294 38735 595 65536 3 0 gpg-agent
[ 5907.004606] [ 1295] 1000 1295 6143 545 90112 314 0 icewm
[ 5907.004611] [ 1298] 1000 1298 1817 49 45056 37 0 startup
[ 5907.004614] [ 1300] 1000 1300 1192 0 45056 94 0 xscreensaver
[ 5907.004616] [ 1302] 1000 1302 1874 0 57344 103 0 xscreensaver-sy
[ 5907.004619] [ 1584] 0 1584 4143 34 65536 340 0 sshd
[ 5907.004622] [ 1588] 1000 1588 4208 26 65536 418 0 sshd
[ 5907.004624] [ 1590] 1000 1590 2463 0 57344 721 0 bash
[ 5907.004627] [ 1739] 0 1739 4144 271 69632 104 0 sshd
[ 5907.004629] [ 1742] 1000 1742 4209 267 69632 172 0 sshd
[ 5907.004632] [ 1743] 1000 1743 2529 592 57344 190 0 bash
[ 5907.004635] [ 3271] 1000 3271 12207676 624136 9175040 513536 0 MonsterApp
[ 5907.004638] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/user.slice/user-1000.slice/session-4.scope,task=MonsterApp,pid=3271,uid=1000
[ 5907.004654] Out of memory: Killed process 3271 (MonsterApp) total-vm:48830704kB, anon-rss:2496540kB, file-rss:4kB, shmem-rss:0kB, UID:1000 pgtables:8960kB oom_score_adj:0
example_rhel7 = """\
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:
[<ffffffff816861ac>] dump_stack+0x19/0x1b
[<ffffffff81681157>] dump_header+0x8e/0x225
[<ffffffff810eab9c>] ? ktime_get_ts64+0x4c/0xf0
[<ffffffff8113ccaf>] ? delayacct_end+0x8f/0xb0
[<ffffffff8118475e>] oom_kill_process+0x24e/0x3c0
[<ffffffff811841fd>] ? oom_unkillable_task+0xcd/0x120
[<ffffffff811842a6>] ? find_lock_task_mm+0x56/0xc0
[<ffffffff810937ee>] ? has_capability_noaudit+0x1e/0x30
[<ffffffff81184f96>] out_of_memory+0x4b6/0x4f0
[<ffffffff81681c60>] __alloc_pages_slowpath+0x5d7/0x725
[<ffffffff8118b0a5>] __alloc_pages_nodemask+0x405/0x420
[<ffffffff811cf25a>] alloc_pages_current+0xaa/0x170
[<ffffffff81180667>] __page_cache_alloc+0x97/0xb0
[<ffffffff811831b0>] filemap_fault+0x170/0x410
[<ffffffffa018f016>] ext4_filemap_fault+0x36/0x50 [ext4]
[<ffffffff811ac2ec>] __do_fault+0x4c/0xc0
[<ffffffff811ac783>] do_read_fault.isra.42+0x43/0x130
[<ffffffff811b0f11>] handle_mm_fault+0x6b1/0xfe0
[<ffffffff811b7825>] ? do_mmap_pgoff+0x305/0x3c0
[<ffffffff81691c94>] __do_page_fault+0x154/0x450
[<ffffffff81691fc5>] do_page_fault+0x35/0x90
[<ffffffff8168e288>] page_fault+0x28/0x30
Mem-Info:
active_anon:7355653 inactive_anon:660960 isolated_anon:0#012 active_file:1263 inactive_file:1167 isolated_file:32#012 unevictable:0 dirty:4 writeback:0 unstable:0#012 slab_reclaimable:27412 slab_unreclaimable:13708#012 mapped:4818 shmem:87896 pagetables:25222 bounce:0#012 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 mysqld
[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 (mysqld) score 651 or sacrifice child
Killed process 6576 (mysqld) total-vm:33914892kB, anon-rss:20629004kB, file-rss:0kB, shmem-rss:0kB
"""
example_tumbleweed_noswap = """\
[ 1400.080118] MonsterApp invoked oom-killer: gfp_mask=0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), order=0, oom_score_adj=0
[ 1400.080125] CPU: 0 PID: 1978 Comm: MonsterApp Not tainted 6.0.3-1-default #1 openSUSE Tumbleweed 50a6ebc5cb1873d6b9c639843cdd1ed0089a1281
[ 1400.080128] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
[ 1400.080129] Call Trace:
[ 1400.080132] <TASK>
[ 1400.080135] dump_stack_lvl+0x44/0x5c
[ 1400.080141] dump_header+0x4a/0x1ff
[ 1400.080152] oom_kill_process.cold+0xb/0x10
[ 1400.080154] out_of_memory+0x1fd/0x4d0
[ 1400.080159] __alloc_pages_slowpath.constprop.0+0xcb0/0xe00
[ 1400.080165] __alloc_pages+0x218/0x240
[ 1400.080168] __folio_alloc+0x17/0x50
[ 1400.080171] ? policy_node+0x51/0x70
[ 1400.080173] vma_alloc_folio+0x88/0x300
[ 1400.080176] __handle_mm_fault+0x946/0xfa0
[ 1400.080180] handle_mm_fault+0xae/0x290
[ 1400.080183] do_user_addr_fault+0x1ba/0x690
[ 1400.080188] exc_page_fault+0x66/0x150
[ 1400.080191] asm_exc_page_fault+0x22/0x30
[ 1400.080194] RIP: 0033:0x4011c1
[ 1400.080198] Code: Unable to access opcode bytes at RIP 0x401197.
[ 1400.080199] RSP: 002b:00007ffccb028980 EFLAGS: 00010206
[ 1400.080201] RAX: 00007fd7c06c9000 RBX: 00007ffccb028ab8 RCX: 00007fe28a591ca7
[ 1400.080203] RDX: 00000000da5c9ff0 RSI: 0000000000000000 RDI: 0000000000000000
[ 1400.080206] RBP: 00007ffccb0289a0 R08: 00000000ffffffff R09: 0000000000000000
[ 1400.080207] R10: 00007ffccb028940 R11: 0000000000000202 R12: 0000000000000000
[ 1400.080208] R13: 00007ffccb028ac8 R14: 0000000000403de0 R15: 00007fe28a6fa000
[ 1400.080212] </TASK>
[ 1400.080213] Mem-Info:
[ 1400.080214] active_anon:970 inactive_anon:927725 isolated_anon:0
active_file:50 inactive_file:0 isolated_file:0
unevictable:2024 dirty:20 writeback:0
slab_reclaimable:6559 slab_unreclaimable:10354
mapped:0 shmem:2277 pagetables:2516 bounce:0
kernel_misc_reclaimable:0
free:26295 free_pcp:0 free_cma:0
[ 1400.080218] Node 0 active_anon:3880kB inactive_anon:3710900kB active_file:200kB inactive_file:0kB unevictable:8096kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:80kB writeback:0kB shmem:9108kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 3178496kB writeback_tmp:0kB kernel_stack:3360kB pagetables:10064kB all_unreclaimable? yes
[ 1400.080222] Node 0 DMA free:14336kB boost:0kB min:128kB low:160kB high:192kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15996kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 1400.080226] lowmem_reserve[]: 0 1946 7904 7904 7904
[ 1400.080229] Node 0 DMA32 free:40272kB boost:0kB min:16608kB low:20760kB high:24912kB reserved_highatomic:0KB active_anon:140kB inactive_anon:1968716kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:2077504kB managed:2011712kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 1400.080233] lowmem_reserve[]: 0 0 5957 5957 5957
[ 1400.080236] Node 0 Normal free:50572kB boost:0kB min:50844kB low:63552kB high:76260kB reserved_highatomic:0KB active_anon:3740kB inactive_anon:1741752kB active_file:0kB inactive_file:356kB unevictable:8096kB writepending:80kB present:6291456kB managed:1914680kB mlocked:80kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 1400.080240] lowmem_reserve[]: 0 0 0 0 0
[ 1400.080243] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 3*4096kB (M) = 14336kB
[ 1400.080259] Node 0 DMA32: 71*4kB (UME) 65*8kB (UME) 42*16kB (UE) 37*32kB (UE) 40*64kB (UME) 28*128kB (UME) 9*256kB (UME) 5*512kB (UME) 4*1024kB (UME) 1*2048kB (M) 5*4096kB (M) = 40292kB
[ 1400.080294] Node 0 Normal: 730*4kB (UME) 110*8kB (UME) 339*16kB (UE) 213*32kB (UE) 91*64kB (UME) 43*128kB (UME) 13*256kB (UME) 5*512kB (UE) 17*1024kB (UM) 0*2048kB 0*4096kB = 50664kB
[ 1400.080323] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[ 1400.080324] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[ 1400.080340] 2378 total pagecache pages
[ 1400.080341] 0 pages in swap cache
[ 1400.080341] Free swap = 0kB
[ 1400.080342] Total swap = 0kB
[ 1400.080343] 2096239 pages RAM
[ 1400.080343] 0 pages HighMem/MovableOnly
[ 1400.080344] 1110801 pages reserved
[ 1400.080344] 0 pages cma reserved
[ 1400.080345] 0 pages hwpoisoned
[ 1400.080346] Tasks state (memory values in pages):
[ 1400.080346] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[ 1400.080357] [ 557] 0 557 14420 828 110592 0 -250 systemd-journal
[ 1400.080360] [ 561] 0 561 8103 556 81920 0 -1000 systemd-udevd
[ 1400.080363] [ 643] 0 643 2096 964 49152 0 0 haveged
[ 1400.080365] [ 749] 0 749 2828 60 40960 0 -1000 auditd
[ 1400.080367] [ 755] 483 755 2156 256 49152 1 -900 dbus-daemon
[ 1400.080369] [ 757] 0 757 19909 83 53248 0 0 irqbalance
[ 1400.080371] [ 776] 0 776 20107 61 49152 0 0 qemu-ga
[ 1400.080373] [ 777] 0 777 1542 132 53248 0 0 rngd
[ 1400.080374] [ 782] 478 782 211645 580 151552 0 0 nscd
[ 1400.080377] [ 810] 0 810 4331 298 73728 0 0 systemd-logind
[ 1400.080393] [ 848] 0 848 60288 688 90112 0 0 pcscd
[ 1400.080395] [ 849] 0 849 2384 311 61440 0 0 wickedd-auto4
[ 1400.080397] [ 851] 0 851 2385 316 57344 0 0 wickedd-dhcp4
[ 1400.080399] [ 854] 0 854 2422 312 53248 0 0 wickedd-dhcp6
[ 1400.080400] [ 863] 477 863 58964 509 102400 1 0 polkitd
[ 1400.080402] [ 864] 0 864 2414 355 53248 0 0 wickedd
[ 1400.080404] [ 874] 0 874 2419 326 53248 0 0 wickedd-nanny
[ 1400.080406] [ 1080] 0 1080 7081 408 86016 0 0 cupsd
[ 1400.080407] [ 1081] 458 1081 305359 7251 286720 0 0 matterbridge
[ 1400.080409] [ 1082] 456 1082 179448 2603 110592 0 0 node_exporter
[ 1400.080411] [ 1085] 472 1085 3699 212 69632 0 0 vncmanager
[ 1400.080413] [ 1089] 0 1089 803 29 45056 0 0 agetty
[ 1400.080414] [ 1107] 0 1107 3438 258 61440 0 -1000 sshd
[ 1400.080416] [ 1108] 476 1108 21312 212 65536 0 0 chronyd
[ 1400.080418] [ 1146] 0 1146 76363 761 90112 0 0 lightdm
[ 1400.080420] [ 1155] 0 1155 59117 748 94208 1 0 accounts-daemon
[ 1400.080422] [ 1165] 0 1165 204230 7672 450560 0 0 Xorg.bin
[ 1400.080424] [ 1201] 0 1201 40196 772 90112 0 0 lightdm
[ 1400.080425] [ 1213] 1000 1213 4860 503 77824 0 100 systemd
[ 1400.080427] [ 1214] 1000 1214 26171 963 94208 0 100 (sd-pam)
[ 1400.080429] [ 1221] 1000 1221 1846 64 49152 0 0 icewm-session
[ 1400.080431] [ 1237] 1000 1237 2056 97 49152 0 200 dbus-daemon
[ 1400.080433] [ 1293] 1000 1293 1598 137 45056 0 0 ssh-agent
[ 1400.080434] [ 1294] 1000 1294 38735 92 65536 0 0 gpg-agent
[ 1400.080436] [ 1295] 1000 1295 6143 859 90112 0 0 icewm
[ 1400.080438] [ 1298] 1000 1298 1817 86 45056 0 0 startup
[ 1400.080439] [ 1300] 1000 1300 1192 88 45056 0 0 xscreensaver
[ 1400.080441] [ 1302] 1000 1302 1874 101 57344 0 0 xscreensaver-sy
[ 1400.080443] [ 1584] 0 1584 4143 374 65536 0 0 sshd
[ 1400.080447] [ 1588] 1000 1588 4208 444 65536 0 0 sshd
[ 1400.080448] [ 1590] 1000 1590 2463 709 57344 0 0 bash
[ 1400.080450] [ 1739] 0 1739 4144 375 69632 0 0 sshd
[ 1400.080452] [ 1742] 1000 1742 4209 439 69632 0 0 sshd
[ 1400.080453] [ 1743] 1000 1743 2463 718 53248 0 0 bash
[ 1400.080455] [ 1978] 1000 1978 12207676 894428 7221248 0 0 MonsterApp
[ 1400.080457] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/user.slice/user-1000.slice/session-4.scope,task=MonsterApp,pid=1978,uid=1000
[ 1400.080469] Out of memory: Killed process 1978 (MonsterApp) total-vm:48830704kB, anon-rss:3577708kB, file-rss:4kB, shmem-rss:0kB, UID:1000 pgtables:7052kB oom_score_adj:0
example_ubuntu2110 = """\
kworker/0:2 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=-1, oom_score_adj=0
CPU: 0 PID: 735 Comm: kworker/0:2 Not tainted 5.13.0-19-generic #19-Ubuntu
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ArchLinux 1.14.0-1 04/01/2014
Workqueue: events moom_callback
Call Trace:
show_stack+0x52/0x58
dump_stack+0x7d/0x9c
dump_header+0x4f/0x1f9
oom_kill_process.cold+0xb/0x10
out_of_memory.part.0+0xce/0x270
out_of_memory+0x41/0x80
moom_callback+0x7a/0xb0
process_one_work+0x220/0x3c0
worker_thread+0x53/0x420
kthread+0x11f/0x140
? process_one_work+0x3c0/0x3c0
? set_kthread_struct+0x50/0x50
ret_from_fork+0x22/0x30
Mem-Info:
active_anon:221 inactive_anon:14331 isolated_anon:0
active_file:18099 inactive_file:22324 isolated_file:0
unevictable:4785 dirty:633 writeback:0
slab_reclaimable:6027 slab_unreclaimable:6546
mapped:15338 shmem:231 pagetables:412 bounce:0
free:427891 free_pcp:153 free_cma:0
Node 0 active_anon:884kB inactive_anon:57324kB active_file:72396kB inactive_file:89296kB unevictable:19140kB isolated(anon):0kB isolated(file):0kB mapped:61352kB dirty:2532kB writeback:0kB shmem:924kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:1856kB pagetables:1648kB all_unreclaimable? no
Node 0 DMA free:15036kB min:352kB low:440kB high:528kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 1893 1893 1893 1893
Node 0 DMA32 free:1696528kB min:44700kB low:55872kB high:67044kB reserved_highatomic:0KB active_anon:884kB inactive_anon:57324kB active_file:72396kB inactive_file:89296kB unevictable:19140kB writepending:2532kB present:2080640kB managed:2010036kB mlocked:19140kB bounce:0kB free_pcp:612kB local_pcp:612kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 1*32kB (U) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 3*4096kB (M) = 15036kB
Node 0 DMA32: 0*4kB 4*8kB (UM) 25*16kB (UME) 151*32kB (UM) 56*64kB (UM) 21*128kB (ME) 36*256kB (UME) 47*512kB (UM) 41*1024kB (UM) 32*2048kB (UM) 377*4096kB (UM) = 1696528kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
42845 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
524158 pages RAM
0 pages HighMem/MovableOnly
17809 pages reserved
0 pages hwpoisoned
Tasks state (memory values in pages):
[ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[ 323] 0 323 9458 2766 77824 0 -250 systemd-journal
[ 356] 0 356 5886 1346 69632 0 -1000 systemd-udevd
[ 507] 0 507 70208 4646 98304 0 -1000 multipathd
[ 542] 101 542 21915 1391 69632 0 0 systemd-timesyn
[ 587] 102 587 4635 1882 73728 0 0 systemd-network
[ 589] 103 589 5875 2951 86016 0 0 systemd-resolve
[ 602] 0 602 1720 322 53248 0 0 cron
[ 603] 104 603 2159 1168 53248 0 -900 dbus-daemon
[ 608] 0 608 7543 4677 94208 0 0 networkd-dispat
[ 609] 107 609 55313 1248 73728 0 0 rsyslogd
[ 611] 0 611 311571 8248 221184 0 -900 snapd
[ 613] 0 613 3404 1668 65536 0 0 systemd-logind
[ 615] 0 615 98223 3142 126976 0 0 udisksd
[ 620] 0 620 1443 278 45056 0 0 agetty
[ 623] 0 623 1947 1147 57344 0 0 login
[ 650] 0 650 3283 1683 65536 0 -1000 sshd
[ 651] 0 651 27005 5232 106496 0 0 unattended-upgr
[ 661] 0 661 58546 1812 90112 0 0 polkitd
[ 856] 1000 856 3789 2157 73728 0 0 systemd
[ 857] 1000 857 25433 835 86016 0 0 (sd-pam)
[ 862] 1000 862 2208 1373 53248 0 0 bash
[ 876] 1000 876 2870 1356 57344 0 0 sudo
[ 877] 0 877 1899 1052 53248 0 0 bash
oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/unattended-upgrades.service,task=unattended-upgr,pid=651,uid=0
Out of memory: Killed process 651 (unattended-upgr) total-vm:108020kB, anon-rss:8380kB, file-rss:12548kB, shmem-rss:0kB, UID:0 pgtables:104kB oom_score_adj:0
"""
sorted_column_number = None
@ -4308,7 +4310,7 @@ class OOMDisplay:
def __init__(self):
self.oom = None
self.set_html_defaults()
# self.update_toc()
self.update_toc()
element = document.getElementById("version")
element.textContent = "v{}".format(VERSION)
@ -4355,27 +4357,27 @@ class OOMDisplay:
if DEBUG:
show_element("notify_box")
# def update_toc(self):
# """
# Update the TOC to show current headlines only
#
# There are two conditions to show a h2 headline in TOC:
# * the headline is visible
# * the id attribute is set
# """
# new_toc = ""
#
# toc_content = document.querySelectorAll("nav > ul")[0]
#
# for element in document.querySelectorAll("h2"):
# if not (is_visible(element) and element.id):
# continue
#
# new_toc += '<li><a href="#{}">{}</a></li>'.format(
# element.id, element.textContent
# )
#
# toc_content.innerHTML = new_toc
def update_toc(self):
"""
Update the TOC to show current headlines only
There are two conditions to show a h2 headline in TOC:
* the headline is visible
* the id attribute is set
"""
new_toc = ""
toc_content = document.querySelectorAll("nav > ul")[0]
for element in document.querySelectorAll("h2"):
if not (is_visible(element) and element.id):
continue
new_toc += '<li><a href="#{}">{}</a></li>'.format(
element.id, element.textContent
)
toc_content.innerHTML = new_toc
def _show_pstable(self):
"""
@ -4508,16 +4510,16 @@ class OOMDisplay:
)
element.firstChild.textContent = "col {}".format(i + 1)
def copy_example_tumbleweed_swap_to_form(self):
document.getElementById("textarea_oom").value = self.example_tumbleweed_swap
def copy_example_rhel7_to_form(self):
document.getElementById("textarea_oom").value = self.example_rhel7
def copy_example_tumbleweed_noswap_to_form(self):
document.getElementById("textarea_oom").value = self.example_tumbleweed_noswap
def copy_example_ubuntu_to_form(self):
document.getElementById("textarea_oom").value = self.example_ubuntu2110
def reset_form(self):
document.getElementById("textarea_oom").value = ""
self.set_html_defaults()
# self.update_toc()
self.update_toc()
def toggle_oom(self, show=False):
"""Toggle the visibility of the full OOM message"""
@ -4544,8 +4546,7 @@ class OOMDisplay:
if success:
self.oom_result = analyser.oom_result
self.show_oom_details()
scroll(0,0)
# self.update_toc()
self.update_toc()
def load_from_form(self):
"""

9
README.md
View File

@ -1,10 +1,11 @@
# openSUSE OOMAnalyser
# OOMAnalyser
[![builds.sr.ht status](https://builds.sr.ht/~carstengrohmann/OOMAnalyser.svg)](https://builds.sr.ht/~carstengrohmann/OOMAnalyser?)
## Introduction
This is a forked version of [Carsten Grohmann's OOMAnalyser](https://git.sr.ht/~carstengrohmann/OOMAnalyser) targeting SUSE based operating systems.
It is a small project to transform the OOM message of a Linux kernel into a more user-friendly format.
OOMAnalyser is a small project to transform the OOM message of a Linux kernel into a more user-friendly format.
OOMAnalyser consists of a web page into whose input field the OOM message is copied. JavaScript code extracts the data
from it and displays the details. All processing takes place in the browser. No data is transferred to external servers.