I noticed my Firefox -esr browser becoming progressively more sluggish.
Then suddenly I was back to the system login screen
This is not the first time this has happened although previously when it
started getting sluggish I killed all Firefox related process
System logs show the start of the event.
2023-12-03T11:35:03.335043+08:00 client kernel: [3792101.257070]
Isolated Web Co invoked oom-killer:
gfp_mask=0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), order=0,
oom_score_adj=100
2023-12-03T11:35:03.335962+08:00 client kernel: [3792101.257078] CPU: 8
PID: 3410924 Comm: Isolated Web Co Tainted: P OE 6.1.0-13-amd64 #1
Debian 6.1.55-1
2023-12-03T11:35:03.335964+08:00 client kernel: [3792101.257081]
Hardware name: System manufacturer System Product Name/PRIME B450M-A,
BIOS 0219 06/08/2018
2023-12-03T11:35:03.335965+08:00 client kernel: [3792101.257082] Call Trace:
2023-12-03T11:35:03.335966+08:00 client kernel: [3792101.257085] <TASK>
2023-12-03T11:35:03.335967+08:00 client kernel: [3792101.257088]
dump_stack_lvl+0x44/0x5c
2023-12-03T11:35:03.335968+08:00 client kernel: [3792101.257094]
dump_header+0x4a/0x211
2023-12-03T11:35:03.335978+08:00 client kernel: [3792101.257097]
oom_kill_process.cold+0xb/0x10
2023-12-03T11:35:03.335979+08:00 client kernel: [3792101.257100]
out_of_memory+0x1fd/0x4c0
2023-12-03T11:35:03.335980+08:00 client kernel: [3792101.257104]
__alloc_pages_slowpath.constprop.0+0xc73/0xdc0
2023-12-03T11:35:03.335981+08:00 client kernel: [3792101.257108]
__alloc_pages+0x305/0x330
2023-12-03T11:35:03.335982+08:00 client kernel: [3792101.257111]
__folio_alloc+0x17/0x50
2023-12-03T11:35:03.335983+08:00 client kernel: [3792101.257113] ?
policy_node+0x51/0x70
2023-12-03T11:35:03.335984+08:00 client kernel: [3792101.257116]
vma_alloc_folio+0x9c/0x370
2023-12-03T11:35:03.335984+08:00 client kernel: [3792101.257119]
__handle_mm_fault+0x92f/0xfa0
2023-12-03T11:35:03.335985+08:00 client kernel: [3792101.257123]
handle_mm_fault+0xdb/0x2d0
2023-12-03T11:35:03.335986+08:00 client kernel: [3792101.257126]
do_user_addr_fault+0x19c/0x570
2023-12-03T11:35:03.335986+08:00 client kernel: [3792101.257129]
exc_page_fault+0x70/0x170
2023-12-03T11:35:03.335987+08:00 client kernel: [3792101.257132]
asm_exc_page_fault+0x22/0x30
2023-12-03T11:35:03.335987+08:00 client kernel: [3792101.257136] RIP:
0033:0x7fcb86b0dd3a
2023-12-03T11:35:03.335988+08:00 client kernel: [3792101.257139] Code:
48 89 fb 48 83 ec 18 e8 b4 de ff ff 48 85 c0 74 42 48 89 c5 48 8b 43 48
48 3b 43 50 0f 84 5e 01 00 00 48 8d 50 08 48 89 53 48 <48> 89 28 4c 8b
bb 88 00 00 00 4d 85 ff 74 16 41 80 7f 19 00 4d 8b
2023-12-03T11:35:03.335989+08:00 client kernel: [3792101.257140] RSP:
002b:00007ffc85877cd0 EFLAGS: 00010283
2023-12-03T11:35:03.335990+08:00 client kernel: [3792101.257142] RAX:
00007fcb0a3b7000 RBX: 00007fcb45f33000 RCX: 0000000005937a1b
2023-12-03T11:35:03.335990+08:00 client kernel: [3792101.257144] RDX:
00007fcb0a3b7008 RSI: 00007fcb85941410 RDI: 0000000000000000
2023-12-03T11:35:03.335991+08:00 client kernel: [3792101.257145] RBP:
00007fcb3ebaea08 R08: 00007fcb3ebaea08 R09: 00000000008fc63b
2023-12-03T11:35:03.335992+08:00 client kernel: [3792101.257146] R10:
0000000000000000 R11: 0000000000000008 R12: 00000558afa25450
2023-12-03T11:35:03.335993+08:00 client kernel: [3792101.257147] R13:
00007ffc85877d20 R14: 0000000000000000 R15: 0000148e1958de08
2023-12-03T11:35:03.335993+08:00 client kernel: [3792101.257150] </TASK>
2023-12-03T11:35:03.335994+08:00 client kernel: [3792101.257151] Mem-Info:
2023-12-03T11:35:03.335994+08:00 client kernel: [3792101.257152]
active_anon:202973 inactive_anon:7445439 isolated_anon:0
2023-12-03T11:35:03.335998+08:00 client kernel: [3792101.257152]
active_file:816 inactive_file:3360 isolated_file:0
2023-12-03T11:35:03.335999+08:00 client kernel: [3792101.257152]
unevictable:2092 dirty:0 writeback:0
2023-12-03T11:35:03.336000+08:00 client kernel: [3792101.257152]
slab_reclaimable:180435 slab_unreclaimable:80961
2023-12-03T11:35:03.336001+08:00 client kernel: [3792101.257152]
mapped:215565 shmem:310212 pagetables:40361
2023-12-03T11:35:03.336001+08:00 client kernel: [3792101.257152]
sec_pagetables:0 bounce:0
2023-12-03T11:35:03.336002+08:00 client kernel: [3792101.257152]
kernel_misc_reclaimable:0
2023-12-03T11:35:03.336004+08:00 client kernel: [3792101.257152]
free:81539 free_pcp:87 free_cma:0
2023-12-03T11:35:03.336004+08:00 client kernel: [3792101.257156] Node 0
active_anon:811892kB inactive_anon:29781756kB active_file:3264kB
inactive_file:13440kB unevictable:8368kB isolated(anon):0kB
isolated(file):0kB mapped:862260kB dirty:0kB writeback:0kB
shmem:1240848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 17088512kB
writeback_tmp:0kB kernel_stack:39