This will appear in dmesg output later:
[ 1374.068457]
oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=gdb,pid=11199,uid=0
[ 1374.068467] Out of memory (oom_kill_allocating_task): Killed process 11199
(gdb) total-vm:26508kB, anon-rss:3872kB, file-rss:1740kB, shmem-rss:0kB
[ 1374.070884] oom_reaper: reaped process 11199 (gdb), now anon-rss:0kB,
file-rss:0kB, shmem-rss:0kB
[ 1377.008811] gdb invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE),
order=0, oom_score_adj=0
[ 1377.008816] CPU: 4 PID: 10868 Comm: gdb Tainted: P O
5.3.0-41-generic #33-Ubuntu
[ 1377.008817] Hardware name: IBM 2964 N63 400 (z/VM 6.4.0)
[ 1377.008817] Call Trace:
[ 1377.008826] ([<00000000b70db9ae>] show_stack+0x8e/0xd0)
[ 1377.008831] [<00000000b7958e0a>] dump_stack+0x8a/0xb8
[ 1377.008836] [<00000000b72cf262>] dump_header+0x62/0x250
[ 1377.008838] [<00000000b72ce332>] oom_kill_process+0x172/0x178
[ 1377.008839] [<00000000b72ce48e>] out_of_memory.part.0+0x156/0x4e0
[ 1377.008841] [<00000000b72cf0fe>] out_of_memory+0x6e/0xf8
[ 1377.008844] [<00000000b732c33a>] __alloc_pages_slowpath+0xda2/0xeb0
[ 1377.008846] [<00000000b732c6ee>] __alloc_pages_nodemask+0x2a6/0x318
[ 1377.008847] [<00000000b72c7736>] pagecache_get_page+0xde/0x2f8
[ 1377.008848] [<00000000b72c933c>] filemap_fault+0x4bc/0xa40
[ 1377.008852] [<00000000b746f87c>] ext4_filemap_fault+0x4c/0x70
[ 1377.008854] [<00000000b7307410>] __do_fault+0x50/0xe8
[ 1377.008855] [<00000000b730c4ce>] do_fault+0x266/0x560
[ 1377.008856] [<00000000b730d214>] __handle_mm_fault+0x76c/0x910
[ 1377.008857] [<00000000b730d47e>] handle_mm_fault+0xc6/0x1a0
[ 1377.008859] [<00000000b70ec4a4>] do_exception+0x12c/0x3e0
[ 1377.008860] [<00000000b70ed30a>] do_dat_exception+0x2a/0x58
[ 1377.008864] [<00000000b7979af8>] pgm_check_handler+0x1cc/0x220
[ 1377.008865] Mem-Info:
[ 1377.008869] active_anon:486067 inactive_anon:121575 isolated_anon:0
active_file:160 inactive_file:115 isolated_file:0
unevictable:4209 dirty:0 writeback:0 unstable:0
slab_reclaimable:16367 slab_unreclaimable:55796
mapped:1794 shmem:0 pagetables:30144 bounce:0
free:13635 free_pcp:1380 free_cma:207
[ 1377.008872] Node 0 active_anon:1944268kB inactive_anon:486300kB
active_file:640kB inactive_file:460kB unevictable:16836kB isolated(anon):0kB
isolated(file):0kB mapped:7176kB dirty:0kB writeback:0kB shmem:0kB shmem_thp:
0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB
all_unreclaimable? no
[ 1377.008873] Node 0 DMA free:44452kB min:39184kB low:42196kB high:45208kB
active_anon:1196556kB inactive_anon:307972kB active_file:680kB
inactive_file:884kB unevictable:0kB writepending:0kB present:2097152kB
managed:2097056kB mlocked:0kB kernel_stack:8960kB pagetables:69696kB bounce:0kB
free_pcp:3940kB local_pcp:84kB free_cma:0kB
[ 1377.008877] lowmem_reserve[]: 0 1751 1751
[ 1377.008879] Node 0 Normal free:10088kB min:10464kB low:13080kB high:15696kB
active_anon:747712kB inactive_anon:178328kB active_file:376kB
inactive_file:280kB unevictable:16836kB writepending:0kB present:2097152kB
managed:1800988kB mlocked:16836kB kernel_stack:18704kB pagetables:50880kB
bounce:0kB free_pcp:1580kB local_pcp:8kB free_cma:828kB
[ 1377.008883] lowmem_reserve[]: 0 0 0
[ 1377.008884] Node 0 DMA: 174*4kB (UME) 21*8kB (U) 1393*16kB (UE) 668*32kB
(UE) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB = 44528kB
[ 1377.008890] Node 0 Normal: 2293*4kB (UMEHC) 117*8kB (UMC) 4*16kB (U) 1*32kB
(U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB = 10204kB
[ 1377.008898] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0
hugepages_size=1024kB
[ 1377.008898] 1962 total pagecache pages
[ 1377.008900] 6 pages in swap cache
[ 1377.008901] Swap cache stats: add 2475767, delete 2475778, find 9545/707824
[ 1377.008901] Free swap = 0kB
[ 1377.008902] Total swap = 2294920kB
[ 1377.008902] 1048576 pages RAM
[ 1377.008903] 0 pages HighMem/MovableOnly
[ 1377.008903] 74065 pages reserved
[ 1377.008904] 1024 pages cma reserved
[ 1377.008904] Tasks state (memory values in pages):
** Tags added: sru-20200217 ubuntu-stress-smoke-test
** Tags removed: ubuntu-stress-smoke-test
** Tags added: ubuntu-stress-smoke-tests
** Tags removed: ubuntu-stress-smoke-tests
** Tags added: ubuntu-stress-smoke-test
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https://bugs.launchpad.net/bugs/1863989
Title:
bad-altstack test from ubuntu_stress_smoke_test failed on Eoan zVM
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