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- Debian GNU/Linux buster/sid debian64 hvc0
- debian64 login: root (automatic login)
- Last login: Sat Mar 17 02:20:52 CET 2018 on hvc0
- Linux debian64 4.16.0-rc5-kvm #10 SMP Fri Mar 16 18:25:58 CET 2018 x86_64
- The programs included with the Debian GNU/Linux system are free software;
- the exact distribution terms for each program are described in the
- individual files in /usr/share/doc/*/copyright.
- Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
- permitted by applicable law.
- root@debian64:~# stty rows 56 cols 236
- root@debian64:~# mkdir /sys/fs/cgroup/memory/rmem
- root@debian64:~# cd /sys/fs/cgroup/memory/rmem
- root@debian64:/sys/fs/cgroup/memory/rmem# echo $((8<<20)) >memory.limit_in_bytes
- root@debian64:/sys/fs/cgroup/memory/rmem# echo $((8<<20)) >memory.kmem.limit_in_bytes
- root@debian64:/sys/fs/cgroup/memory/rmem# echo $$ >cgroup.procs
- root@debian64:/sys/fs/cgroup/memory/rmem# echo 1 >memory.oom_control
- root@debian64:/sys/fs/cgroup/memory/rmem# grep . *
- cgroup.clone_children:0
- grep: cgroup.event_control: Invalid argument
- cgroup.procs:185
- cgroup.procs:226
- memory.failcnt:0
- grep: memory.force_empty: Invalid argument
- memory.kmem.failcnt:0
- memory.kmem.limit_in_bytes:8388608
- memory.kmem.max_usage_in_bytes:204800
- memory.kmem.tcp.failcnt:0
- memory.kmem.tcp.limit_in_bytes:9223372036854771712
- memory.kmem.tcp.max_usage_in_bytes:0
- memory.kmem.tcp.usage_in_bytes:0
- memory.kmem.usage_in_bytes:184320
- memory.limit_in_bytes:8388608
- memory.max_usage_in_bytes:626688
- memory.move_charge_at_immigrate:0
- memory.oom_control:oom_kill_disable 1
- memory.oom_control:under_oom 0
- memory.oom_control:oom_kill 0
- grep: memory.pressure_level: Invalid argument
- memory.soft_limit_in_bytes:9223372036854771712
- memory.stat:cache 0
- memory.stat:rss 270336
- memory.stat:rss_huge 0
- memory.stat:shmem 0
- memory.stat:mapped_file 0
- memory.stat:dirty 0
- memory.stat:writeback 0
- memory.stat:pgpgin 66
- memory.stat:pgpgout 0
- memory.stat:pgfault 132
- memory.stat:pgmajfault 0
- memory.stat:inactive_anon 0
- memory.stat:active_anon 282624
- memory.stat:inactive_file 0
- memory.stat:active_file 0
- memory.stat:unevictable 0
- memory.stat:hierarchical_memory_limit 8388608
- memory.stat:total_cache 0
- memory.stat:total_rss 270336
- memory.stat:total_rss_huge 0
- memory.stat:total_shmem 0
- memory.stat:total_mapped_file 0
- memory.stat:total_dirty 0
- memory.stat:total_writeback 0
- memory.stat:total_pgpgin 66
- memory.stat:total_pgpgout 0
- memory.stat:total_pgfault 132
- memory.stat:total_pgmajfault 0
- memory.stat:total_inactive_anon 0
- memory.stat:total_active_anon 282624
- memory.stat:total_inactive_file 0
- memory.stat:total_active_file 0
- memory.stat:total_unevictable 0
- memory.swappiness:60
- memory.usage_in_bytes:626688
- memory.use_hierarchy:1
- notify_on_release:0
- tasks:185
- tasks:226
- root@debian64:/sys/fs/cgroup/memory/rmem# free -h
- total used free shared buff/cache available
- Mem: 241M 26M 168M 1.8M 46M 202M
- Swap: 0B 0B 0B
- root@debian64:/sys/fs/cgroup/memory/rmem# for i in /proc/sys/net/core/[rw]mem_{default,max}; do echo 1000000 >$i; done
- root@debian64:/sys/fs/cgroup/memory/rmem# /mnt/host/Documenti/redhat/bufflood -s -P sctp &
- [1] 228
- root@debian64:/sys/fs/cgroup/memory/rmem# /mnt/host/Documenti/redhat/bufflood -c -P sctp -a 127.0.0.1 & while kill -0 $!; do free -h; done
- [2] 231
- total used free shared buff/cache available
- Mem: 241M 26M 167M 1.8M 46M 202M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 30M 164M 1.8M 46M 198M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 34M 159M 1.8M 46M 194M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 39M 155M 1.8M 46M 189M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 44M 150M 1.8M 46M 184M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 48M 145M 1.8M 46M 180M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 53M 141M 1.8M 46M 175M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 58M 136M 1.8M 46M 170M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 62M 131M 1.8M 46M 166M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 67M 127M 1.8M 46M 161M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 72M 122M 1.8M 46M 156M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 76M 117M 1.8M 46M 152M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 81M 113M 1.8M 46M 147M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 86M 108M 1.8M 46M 142M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 90M 103M 1.8M 46M 138M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 95M 99M 1.8M 46M 133M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 100M 94M 1.8M 46M 128M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 104M 90M 1.8M 46M 124M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 109M 85M 1.8M 46M 119M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 113M 80M 1.8M 46M 115M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 118M 76M 1.8M 46M 110M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 123M 71M 1.8M 46M 105M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 127M 67M 1.8M 46M 101M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 131M 62M 1.8M 46M 97M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 136M 58M 1.8M 46M 92M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 141M 53M 1.8M 46M 87M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 145M 49M 1.8M 46M 83M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 150M 43M 1.8M 46M 78M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 156M 38M 1.8M 46M 72M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 162M 32M 1.8M 46M 66M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 167M 26M 1.8M 46M 61M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 174M 20M 1.8M 46M 54M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 180M 13M 1.8M 46M 48M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 187M 7.3M 1.8M 46M 41M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 192M 4.3M 1.8M 44M 36M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 196M 3.2M 1.8M 41M 32M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 199M 3.2M 1.8M 38M 29M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 201M 3.3M 1.8M 36M 27M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 201M 3.3M 1.8M 36M 27M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 201M 4.0M 1.8M 35M 27M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 202M 3.1M 1.8M 35M 26M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 203M 3.5M 1.8M 34M 25M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 203M 3.5M 1.8M 34M 25M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 203M 3.7M 1.8M 34M 25M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 204M 4.4M 1.8M 32M 24M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 205M 3.6M 1.8M 32M 23M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 206M 4.3M 1.8M 30M 22M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 206M 4.0M 1.8M 30M 22M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 208M 2.9M 1.8M 30M 20M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 209M 4.1M 1.8M 28M 19M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 209M 3.9M 1.8M 27M 19M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 210M 3.1M 1.8M 27M 18M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 210M 3.1M 1.8M 27M 18M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 210M 3.1M 1.8M 27M 18M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 211M 3.0M 1.8M 26M 17M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 212M 3.7M 1.8M 25M 16M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 211M 4.3M 1.8M 24M 16M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 212M 4.3M 1.8M 24M 16M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 212M 4.5M 1.8M 24M 16M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 213M 3.9M 1.8M 23M 15M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 213M 4.6M 1.8M 23M 15M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 215M 3.8M 1.8M 21M 13M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 215M 3.9M 1.8M 21M 13M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 215M 3.9M 1.8M 21M 13M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 216M 3.5M 1.8M 20M 11M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 218M 3.7M 1.8M 19M 10M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 218M 3.4M 1.8M 19M 10M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 219M 3.6M 1.8M 18M 9.9M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 224M 4.0M 1.8M 13M 5.0M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 226M 2.9M 1.8M 11M 3.1M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.4M 1.8M 10M 3.3M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.4M 1.8M 10M 2.8M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.1M 1.8M 10M 2.7M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.1M 1.8M 10M 2.7M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.4M 1.8M 10M 2.8M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.0M 1.8M 10M 2.5M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.5M 1.8M 9.8M 2.8M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.5M 1.8M 9.9M 2.9M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.1M 1.8M 10M 2.7M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.9M 1.8M 9.4M 3.0M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.7M 1.8M 9.9M 3.0M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.1M 1.8M 10M 2.6M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.4M 1.8M 9M 2.7M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- Mem: 241M 227M 3.3M 1.8M 10M 2.7M
- Swap: 0B 0B 0B
- total used free shared buff/cache available
- [ 116.472320] bufflood invoked oom-killer: gfp_mask=0x14142c0(GFP_KERNEL|__GFP_NOWARN|__GFP_COMP|__GFP_NOMEMALLOC), nodemask=(null), order=1, oom_score_adj=0
- [ 116.472887] CPU: 1 PID: 231 Comm: bufflood Not tainted 4.16.0-rc5-kvm #10
- [ 116.473094] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-2.fc27 04/01/2014
- [ 116.473390] Call Trace:
- [ 116.473478] dump_stack+0x5c/0x78
- [ 116.473615] dump_header+0x5d/0x1d1
- [ 116.473765] oom_kill_process+0x23a/0x460
- [ 116.473960] ? oom_badness.part.21+0xaf/0x130
- [ 116.474144] out_of_memory+0xec/0x2a0
- [ 116.474254] __alloc_pages_slowpath+0x868/0xa90
- [ 116.474433] __alloc_pages_nodemask+0x103/0x160
- [ 116.474607] new_slab+0x35a/0x4a0
- [ 116.474727] ___slab_alloc.isra.75.constprop.85+0x371/0x3d0
- [ 116.474908] ? __slab_alloc.isra.76.constprop.84+0x17/0x30
- [ 116.475083] __slab_alloc.isra.76.constprop.84+0x17/0x30
- [ 116.475253] __kmalloc_track_caller+0x10f/0x150
- [ 116.475423] __kmalloc_reserve.isra.45+0x24/0x70
- [ 116.475593] __alloc_skb+0x6b/0x1a0
- [ 116.475720] _sctp_make_chunk+0x37/0xd0
- [ 116.475848] sctp_make_datafrag_empty+0x3e/0x90
- [ 116.476017] sctp_datamsg_from_user+0x1ab/0x330
- [ 116.476187] sctp_sendmsg+0x5cb/0x1150
- [ 116.476319] ? __lock_page_or_retry+0x2c0/0x2c0
- [ 116.476488] ? filemap_fault+0x16a/0x620
- [ 116.476617] ? page_add_file_rmap+0x10b/0x210
- [ 116.476791] ? sock_write_iter+0x89/0xe0
- [ 116.476947] sock_write_iter+0x89/0xe0
- [ 116.477077] __vfs_write+0xcf/0x130
- [ 116.477203] vfs_write+0x9f/0x160
- [ 116.477331] SyS_write+0x3d/0x90
- [ 116.477457] do_syscall_64+0x5c/0x110
- [ 116.477586] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
- [ 116.477754] RIP: 0033:0x7f0eb6d6f134
- [ 116.477904] RSP: 002b:00007fff246270e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
- [ 116.478161] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0eb6d6f134
- [ 116.478415] RDX: 0000000000001000 RSI: 0000000000602140 RDI: 0000000000000083
- [ 116.478669] RBP: 00007fff24627110 R08: 00007fff2462717b R09: 0000000000000000
- [ 116.478926] R10: 00000000000008c6 R11: 0000000000000246 R12: 0000000000400b10
- [ 116.479180] R13: 00007fff246272c0 R14: 0000000000000000 R15: 0000000000000000
- [ 116.479548] Mem-Info:
- [ 116.479676] active_anon:2730 inactive_anon:446 isolated_anon:0
- [ 116.479676] active_file:25 inactive_file:15 isolated_file:0
- [ 116.479676] unevictable:579 dirty:0 writeback:0 unstable:0
- [ 116.479676] slab_reclaimable:973 slab_unreclaimable:38883
- [ 116.479676] mapped:602 shmem:462 pagetables:420 bounce:0
- [ 116.479676] free:883 free_pcp:14 free_cma:0
- [ 116.480732] Node 0 active_anon:10920kB inactive_anon:1784kB active_file:100kB inactive_file:60kB unevictable:2316kB isolated(anon):0kB isolated(file):0kB mapped:2408kB dirty:0kB writeback:0kB shmem:1848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
- [ 116.481622] DMA free:952kB min:128kB low:160kB high:192kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
- [ 116.482410] lowmem_reserve[]: 0 221 221 221
- [ 116.482530] DMA32 free:2580kB min:1840kB low:2300kB high:2760kB active_anon:10920kB inactive_anon:1784kB active_file:100kB inactive_file:60kB unevictable:2316kB writepending:0kB present:245624kB managed:231180kB mlocked:2316kB kernel_stack:1008kB pagetables:1680kB bounce:0kB free_pcp:56kB local_pcp:56kB free_cma:0kB
- [ 116.483348] lowmem_reserve[]: 0 0 0 0
- [ 116.483461] DMA: 30*4kB (U) 10*8kB (U) 5*16kB (U) 1*32kB (U) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 952kB
- [ 116.483834] DMA32: 480*4kB (UMEH) 10*8kB (UMEH) 37*16kB (UEH) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2592kB
- [ 116.484205] 996 total pagecache pages
- [ 116.484319] 65404 pages RAM
- [ 116.484394] 0 pages HighMem/MovableOnly
- [ 116.484506] 3632 pages reserved
- [ 116.484619] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
- [ 116.484890] [ 78] 0 78 16412 614 180224 0 0 systemd-journal
- [ 116.485183] [ 95] 0 95 11098 617 118784 0 -1000 systemd-udevd
- [ 116.485448] [ 138] 100 138 36017 562 188416 0 0 systemd-timesyn
- [ 116.485713] [ 162] 0 162 1081 412 49152 0 0 acpid
- [ 116.485963] [ 164] 0 164 16044 512 159744 0 0 systemd-logind
- [ 116.486251] [ 166] 0 166 7021 456 102400 0 0 atd
- [ 116.486480] [ 167] 0 167 7446 470 98304 0 0 cron
- [ 116.486707] [ 168] 0 168 65631 629 159744 0 0 rsyslogd
- [ 116.486936] [ 169] 105 169 12418 515 139264 0 -900 dbus-daemon
- [ 116.487202] [ 170] 0 170 28630 446 122880 0 0 irqbalance
- [ 116.487468] [ 175] 0 175 17371 502 180224 0 0 login
- [ 116.487697] [ 179] 0 179 1095 581 65536 0 -1000 watchdog
- [ 116.487924] [ 185] 0 185 6416 854 90112 0 0 bash
- [ 116.488152] [ 206] 0 206 5835 468 77824 0 0 dhclient
- [ 116.488380] [ 228] 0 228 1072 292 57344 0 0 bufflood
- [ 116.488608] [ 231] 0 231 1072 308 53248 0 0 bufflood
- [ 116.488837] [ 316] 0 316 6676 421 90112 0 0 free
- [ 116.489065] Out of memory: Kill process 185 (bash) score 13 or sacrifice child
- [ 116.489321] Killed process 316 (free) total-vm:26704kB, anon-rss:236kB, file-rss:1448kB, shmem-rss:0kB
- [ 116.513856] bufflood invoked oom-killer: gfp_mask=0x14142c0(GFP_KERNEL|__GFP_NOWARN|__GFP_COMP|__GFP_NOMEMALLOC), nodemask=(null), order=1, oom_score_adj=0
- [ 116.514351] CPU: 1 PID: 231 Comm: bufflood Not tainted 4.16.0-rc5-kvm #10
- [ 116.514581] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-2.fc27 04/01/2014
- [ 116.514849] Call Trace:
- [ 116.514957] dump_stack+0x5c/0x78
- [ 116.515084] dump_header+0x5d/0x1d1
- [ 116.515208] oom_kill_process+0x23a/0x460
- [ 116.515343] ? oom_badness.part.21+0xaf/0x130
- [ 116.515509] out_of_memory+0xec/0x2a0
- [ 116.515641] __alloc_pages_slowpath+0x868/0xa90
- [ 116.515809] __alloc_pages_nodemask+0x103/0x160
- [ 116.516013] new_slab+0x35a/0x4a0
- [ 116.516134] ___slab_alloc.isra.75.constprop.85+0x371/0x3d0
- [ 116.516300] ? __slab_alloc.isra.76.constprop.84+0x17/0x30
- [ 116.516465] __slab_alloc.isra.76.constprop.84+0x17/0x30
- [ 116.516627] __kmalloc_track_caller+0x10f/0x150
- [ 116.516795] __kmalloc_reserve.isra.45+0x24/0x70
- [ 116.516954] __alloc_skb+0x6b/0x1a0
- [ 116.517089] _sctp_make_chunk+0x37/0xd0
- [ 116.517220] sctp_make_datafrag_empty+0x3e/0x90
- [ 116.517388] sctp_datamsg_from_user+0x1ab/0x330
- [ 116.517558] sctp_sendmsg+0x5cb/0x1150
- [ 116.517687] ? __lock_page_or_retry+0x2c0/0x2c0
- [ 116.517884] ? filemap_fault+0x16a/0x620
- [ 116.518014] ? page_add_file_rmap+0x10b/0x210
- [ 116.518184] ? sock_write_iter+0x89/0xe0
- [ 116.518314] sock_write_iter+0x89/0xe0
- [ 116.518449] __vfs_write+0xcf/0x130
- [ 116.518583] vfs_write+0x9f/0x160
- [ 116.518712] SyS_write+0x3d/0x90
- [ 116.518835] do_syscall_64+0x5c/0x110
- [ 116.518962] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
- [ 116.519118] RIP: 0033:0x7f0eb6d6f134
- [ 116.519248] RSP: 002b:00007fff246270e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
- [ 116.519488] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0eb6d6f134
- [ 116.519705] RDX: 0000000000001000 RSI: 0000000000602140 RDI: 0000000000000083
- [ 116.519866] RBP: 00007fff24627110 R08: 00007fff2462717b R09: 0000000000000000
- [ 116.520034] R10: 00000000000008c6 R11: 0000000000000246 R12: 0000000000400b10
- [ 116.520200] R13: 00007fff246272c0 R14: 0000000000000000 R15: 0000000000000000
- [ 116.520415] Mem-Info:
- [ 116.520494] active_anon:2676 inactive_anon:446 isolated_anon:0
- [ 116.520494] active_file:26 inactive_file:29 isolated_file:0
- [ 116.520494] unevictable:579 dirty:0 writeback:0 unstable:0
- [ 116.520494] slab_reclaimable:973 slab_unreclaimable:38883
- [ 116.520494] mapped:620 shmem:462 pagetables:407 bounce:0
- [ 116.520494] free:927 free_pcp:0 free_cma:0
- [ 116.521099] Node 0 active_anon:10704kB inactive_anon:1784kB active_file:104kB inactive_file:116kB unevictable:2316kB isolated(anon):0kB isolated(file):0kB mapped:2480kB dirty:0kB writeback:0kB shmem:1848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
- [ 116.521608] DMA free:952kB min:128kB low:160kB high:192kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
- [ 116.522108] lowmem_reserve[]: 0 221 221 221
- [ 116.522203] DMA32 free:2756kB min:1840kB low:2300kB high:2760kB active_anon:10704kB inactive_anon:1784kB active_file:136kB inactive_file:232kB unevictable:2316kB writepending:0kB present:245624kB managed:231180kB mlocked:2316kB kernel_stack:996kB pagetables:1628kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
- [ 116.522710] lowmem_reserve[]: 0 0 0 0
- [ 116.522804] DMA: 30*4kB (U) 10*8kB (U) 5*16kB (U) 1*32kB (U) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 952kB
- [ 116.523078] DMA32: 566*4kB (UMH) 17*8kB (UMEH) 37*16kB (UEH) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2992kB
- [ 116.523331] 1007 total pagecache pages
- [ 116.523405] 65404 pages RAM
- [ 116.523455] 0 pages HighMem/MovableOnly
- [ 116.523529] 3632 pages reserved
- [ 116.523603] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
- [ 116.523785] [ 78] 0 78 16412 620 180224 0 0 systemd-journal
- [ 116.523973] [ 95] 0 95 11098 617 118784 0 -1000 systemd-udevd
- [ 116.524166] [ 138] 100 138 36017 562 188416 0 0 systemd-timesyn
- [ 116.524356] [ 162] 0 162 1081 412 49152 0 0 acpid
- [ 116.524524] [ 164] 0 164 16044 512 159744 0 0 systemd-logind
- [ 116.524721] [ 166] 0 166 7021 456 102400 0 0 atd
- [ 116.524849] [ 167] 0 167 7446 470 98304 0 0 cron
- [ 116.524977] [ 168] 0 168 65631 634 159744 0 0 rsyslogd
- [ 116.525116] [ 169] 105 169 12418 515 139264 0 -900 dbus-daemon
- [ 116.525256] [ 170] 0 170 28630 446 122880 0 0 irqbalance
- [ 116.525402] [ 175] 0 175 17371 502 180224 0 0 login
- [ 116.525535] [ 179] 0 179 1095 581 65536 0 -1000 watchdog
- [ 116.525663] [ 185] 0 185 6416 854 90112 0 0 bash
- [ 116.525806] [ 206] 0 206 5835 468 77824 0 0 dhclient
- [ 116.525941] [ 228] 0 228 1072 292 57344 0 0 bufflood
- [ 116.526067] [ 231] 0 231 1072 307 53248 0 0 bufflood
- [ 116.526199] Out of memory: Kill process 185 (bash) score 13 or sacrifice child
- [ 116.526343] Killed process 231 (bufflood) total-vm:4288kB, anon-rss:80kB, file-rss:1148kB, shmem-rss:0kB
- [ 116.526592] oom_reaper: reaped process 231 (bufflood), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
- [ 116.527683] bufflood: page allocation failure: order:4, mode:0x1084020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
- [ 116.527861] CPU: 1 PID: 231 Comm: bufflood Not tainted 4.16.0-rc5-kvm #10
- [ 116.527968] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-2.fc27 04/01/2014
- [ 116.528101] Call Trace:
- [ 116.528145] dump_stack+0x5c/0x78
- [ 116.528215] warn_alloc+0xad/0x130
- [ 116.528286] __alloc_pages_slowpath+0x93a/0xa90
- [ 116.528376] ? select_task_rq_fair+0x5d2/0xc80
- [ 116.528466] ? kvm_sched_clock_read+0x1a/0x30
- [ 116.528556] ? sched_clock+0x5/0x10
- [ 116.528627] __alloc_pages_nodemask+0x103/0x160
- [ 116.528717] kmalloc_order+0x13/0x40
- [ 116.528789] __kmalloc_reserve.isra.45+0x63/0x70
- [ 116.528879] __alloc_skb+0x6b/0x1a0
- [ 116.528951] sctp_packet_transmit+0x78/0x830
- [ 116.529044] ? find_busiest_group+0xf2/0x940
- [ 116.529134] ? sctp_chunk_assign_tsn+0x1a/0x30
- [ 116.529227] ? __sctp_packet_append_chunk+0x1d7/0x210
- [ 116.529316] sctp_outq_flush+0x31b/0xab0
- [ 116.529387] ? build_sched_domains+0x53a/0xcf0
- [ 116.529478] ? check_preempt_wakeup+0xc9/0x170
- [ 116.529569] ? sctp_sf_do_9_2_prm_shutdown+0x4e/0x90
- [ 116.529659] sctp_do_sm+0x3f2/0x17e0
- [ 116.529733] ? memcg_check_events.isra.56+0x8a/0x170
- [ 116.529817] ? mem_cgroup_uncharge_list+0x54/0x60
- [ 116.529890] ? __slab_free.isra.74+0xef/0x1c0
- [ 116.529963] ? __slab_free.isra.74+0xef/0x1c0
- [ 116.530036] sctp_primitive_SHUTDOWN+0x2a/0x40
- [ 116.530110] sctp_close+0x1a5/0x260
- [ 116.530166] ? kmem_cache_free+0x131/0x160
- [ 116.530226] inet_release+0x31/0x50
- [ 116.530283] sock_release+0x10/0x60
- [ 116.530340] sock_close+0x9/0x10
- [ 116.530399] __fput+0xc2/0x1b0
- [ 116.530457] task_work_run+0x7c/0xa0
- [ 116.530514] do_exit+0x26c/0x9f0
- [ 116.530572] ? filemap_fault+0x16a/0x620
- [ 116.530628] do_group_exit+0x35/0xa0
- [ 116.530685] get_signal+0x139/0x4b0
- [ 116.530744] do_signal+0x1e/0x5a0
- [ 116.530801] ? __vfs_write+0xcf/0x130
- [ 116.530859] exit_to_usermode_loop+0x4d/0x80
- [ 116.530931] do_syscall_64+0xf9/0x110
- [ 116.530989] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
- [ 116.531061] RIP: 0033:0x7f0eb6d6f134
- [ 116.531118] RSP: 002b:00007fff246270e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
- [ 116.531221] RAX: 0000000000001000 RBX: 0000000000000000 RCX: 00007f0eb6d6f134
- [ 116.531312] RDX: 0000000000001000 RSI: 0000000000602140 RDI: 0000000000000083
- [ 116.531402] RBP: 00007fff24627110 R08: 00007fff2462717b R09: 0000000000000000
- [ 116.531492] R10: 00000000000008c6 R11: 0000000000000246 R12: 0000000000400b10
- [ 116.531583] R13: 00007fff246272c0 R14: 0000000000000000 R15: 0000000000000000
- [ 116.531710] Mem-Info:
- [ 116.531756] active_anon:2658 inactive_anon:446 isolated_anon:0
- [ 116.531756] active_file:26 inactive_file:20 isolated_file:0
- [ 116.531756] unevictable:579 dirty:0 writeback:0 unstable:0
- [ 116.531756] slab_reclaimable:973 slab_unreclaimable:38883
- [ 116.531756] mapped:611 shmem:462 pagetables:407 bounce:0
- [ 116.531756] free:927 free_pcp:55 free_cma:0
- [ 116.532134] Node 0 active_anon:10632kB inactive_anon:1784kB active_file:104kB inactive_file:80kB unevictable:2316kB isolated(anon):0kB isolated(file):0kB mapped:2444kB dirty:0kB writeback:0kB shmem:1848kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
- [ 116.532473] DMA free:952kB min:128kB low:160kB high:192kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
- [ 116.532782] lowmem_reserve[]: 0 221 221 221
- [ 116.532839] DMA32 free:2756kB min:1840kB low:2300kB high:2760kB active_anon:10704kB inactive_anon:1784kB active_file:136kB inactive_file:232kB unevictable:2316kB writepending:0kB present:245624kB managed:231180kB mlocked:2316kB kernel_stack:996kB pagetables:1628kB bounce:0kB free_pcp:220kB local_pcp:220kB free_cma:0kB
- [ 116.533164] lowmem_reserve[]: 0 0 0 0
- [ 116.533222] DMA: 30*4kB (U) 10*8kB (U) 5*16kB (U) 1*32kB (U) 0*64kB 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 952kB
- [ 116.533382] DMA32: 551*4kB (UMH) 16*8kB (UMEH) 37*16kB (UEH) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2924kB
- [ 116.533539] 998 total pagecache pages
- [ 116.533585] 65404 pages RAM
- [ 116.533615] 0 pages HighMem/MovableOnly
- [ 116.533661] 3632 pages reserved
- [ 116.533751] bufflood: page allocation failure: order:4, mode:0x1084020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
- [ 116.534058] CPU: 1 PID: 231 Comm: bufflood Not tainted 4.16.0-rc5-kvm #10
- [ 116.534205] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-2.fc27 04/01/2014
- [ 116.534403] Call Trace:
- [ 116.534466] dump_stack+0x5c/0x78
- [ 116.534579] warn_alloc+0xad/0x130
- [ 116.534665] __alloc_pages_slowpath+0x93a/0xa90
- [ 116.534778] ? select_task_rq_fair+0x5d2/0xc80
- [ 116.534873] ? kvm_sched_clock_read+0x1a/0x30
- [ 116.534954] ? sched_clock+0x5/0x10
- [ 116.535040] __alloc_pages_nodemask+0x103/0x160
- [ 116.535133] kmalloc_order+0x13/0x40
- [ 116.535204] __kmalloc_reserve.isra.45+0x63/0x70
- [ 116.535296] __alloc_skb+0x6b/0x1a0
- [ 116.535366] sctp_packet_transmit+0x78/0x830
- [ 116.535460] ? find_busiest_group+0xf2/0x940
- [ 116.535553] ? sctp_chunk_assign_tsn+0x1a/0x30
- [ 116.535644] ? __sctp_packet_append_chunk+0x1d7/0x210
- [ 116.535739] sctp_outq_flush+0x31b/0xab0
- [ 116.535794] ? build_sched_domains+0x53a/0xcf0
- [ 116.535875] ? check_preempt_wakeup+0xc9/0x170
- [ 116.535946] ? sctp_sf_do_9_2_prm_shutdown+0x4e/0x90
- [ 116.536007] sctp_do_sm+0x3f2/0x17e0
- [ 116.536056] ? memcg_check_events.isra.56+0x8a/0x170
- [ 116.536133] ? mem_cgroup_uncharge_list+0x54/0x60
- [ 116.536232] ? __slab_free.isra.74+0xef/0x1c0
- [ 116.536307] ? __slab_free.isra.74+0xef/0x1c0
- [ 116.536379] sctp_primitive_SHUTDOWN+0x2a/0x40
- [ 116.536443] sctp_close+0x1a5/0x260
- [ 116.536491] ? woken_wake_function+0x10/0x10
- [ 116.536549] ? fsnotify_grab_connector+0x37/0x60
- [ 116.536609] ? fsnotify_destroy_marks+0xb/0xd0
- [ 116.536671] inet_release+0x31/0x50
- [ 116.536720] sock_release+0x10/0x60
- [ 116.536768] sock_close+0x9/0x10
- [ 116.536817] __fput+0xc2/0x1b0
- [ 116.536865] task_work_run+0x7c/0xa0
- [ 116.536913] do_exit+0x26c/0x9f0
- [ 116.536963] ? filemap_fault+0x16a/0x620
- [ 116.537010] do_group_exit+0x35/0xa0
- [ 116.537059] get_signal+0x139/0x4b0
- [ 116.537109] do_signal+0x1e/0x5a0
- [ 116.537156] ? __vfs_write+0xcf/0x130
- [ 116.537205] exit_to_usermode_loop+0x4d/0x80
- [ 116.537266] do_syscall_64+0xf9/0x110
- [ 116.537319] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
- [ 116.537382] RIP: 0033:0x7f0eb6d6f134
- [ 116.537432] RSP: 002b:00007fff246270e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
- [ 116.537526] RAX: 0000000000001000 RBX: 0000000000000000 RCX: 00007f0eb6d6f134
- [ 116.537616] RDX: 0000000000001000 RSI: 0000000000602140 RDI: 0000000000000083
- [ 116.537708] RBP: 00007fff24627110 R08: 00007fff2462717b R09: 0000000000000000
- [ 116.537808] R10: 00000000000008c6 R11: 0000000000000246 R12: 0000000000400b10
- [ 116.537898] R13: 00007fff246272c0 R14: 0000000000000000 R15: 0000000000000000
- [ 116.538037] bufflood: page allocation failure: order:3, mode:0x1084020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
- [ 116.538231] CPU: 1 PID: 231 Comm: bufflood Not tainted 4.16.0-rc5-kvm #10
- [ 116.538307] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-2.fc27 04/01/2014
- [ 116.538407] Call Trace:
- [ 116.538447] dump_stack+0x5c/0x78
- [ 116.538495] warn_alloc+0xad/0x130
- [ 116.538551] __alloc_pages_slowpath+0x93a/0xa90
- [ 116.538620] ? select_task_rq_fair+0x5d2/0xc80
- [ 116.538682] ? kvm_sched_clock_read+0x1a/0x30
- [ 116.538744] ? sched_clock+0x5/0x10
- [ 116.538792] __alloc_pages_nodemask+0x103/0x160
- [ 116.538854] kmalloc_order+0x13/0x40
- [ 116.538904] __kmalloc_reserve.isra.45+0x63/0x70
- [ 116.538965] __alloc_skb+0x6b/0x1a0
- [ 116.539015] sctp_packet_transmit+0x78/0x830
- [ 116.539075] ? find_busiest_group+0xf2/0x940
- [ 116.539138] ? sctp_chunk_assign_tsn+0x1a/0x30
- [ 116.539205] ? __sctp_packet_append_chunk+0x1d7/0x210
- [ 116.539266] sctp_outq_flush+0x31b/0xab0
- [ 116.539313] ? build_sched_domains+0x53a/0xcf0
- [ 116.539374] ? check_preempt_wakeup+0xc9/0x170
- [ 116.539436] ? sctp_sf_do_9_2_prm_shutdown+0x4e/0x90
- [ 116.539497] sctp_do_sm+0x3f2/0x17e0
- [ 116.539547] ? memcg_check_events.isra.56+0x8a/0x170
- [ 116.539607] ? mem_cgroup_uncharge_list+0x54/0x60
- [ 116.539671] ? __slab_free.isra.74+0xef/0x1c0
- [ 116.539747] ? __slab_free.isra.74+0xef/0x1c0
- [ 116.539802] sctp_primitive_SHUTDOWN+0x2a/0x40
- [ 116.539856] sctp_close+0x1a5/0x260
- [ 116.539899] ? woken_wake_function+0x10/0x10
- [ 116.539953] ? fsnotify_grab_connector+0x37/0x60
- [ 116.540008] ? fsnotify_destroy_marks+0xb/0xd0
- [ 116.540064] inet_release+0x31/0x50
- [ 116.540106] sock_release+0x10/0x60
- [ 116.540149] sock_close+0x9/0x10
- [ 116.540193] __fput+0xc2/0x1b0
- [ 116.540236] task_work_run+0x7c/0xa0
- [ 116.540279] do_exit+0x26c/0x9f0
- [ 116.540323] ? filemap_fault+0x16a/0x620
- [ 116.540365] do_group_exit+0x35/0xa0
- [ 116.540409] get_signal+0x139/0x4b0
- [ 116.540452] do_signal+0x1e/0x5a0
- [ 116.540495] ? __vfs_write+0xcf/0x130
- [ 116.540538] exit_to_usermode_loop+0x4d/0x80
- [ 116.540592] do_syscall_64+0xf9/0x110
- [ 116.540636] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
- [ 116.540690] RIP: 0033:0x7f0eb6d6f134
- [ 116.540733] RSP: 002b:00007fff246270e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
- [ 116.540810] RAX: 0000000000001000 RBX: 0000000000000000 RCX: 00007f0eb6d6f134
- [ 116.540887] RDX: 0000000000001000 RSI: 0000000000602140 RDI: 0000000000000083
- [ 116.540964] RBP: 00007fff24627110 R08: 00007fff2462717b R09: 0000000000000000
- [ 116.541041] R10: 00000000000008c6 R11: 0000000000000246 R12: 0000000000400b10
- [ 116.541117] R13: 00007fff246272c0 R14: 0000000000000000 R15: 0000000000000000
- Killed
- -bash: kill: (231) - No such process
- [2]+ Killed /mnt/host/Documenti/redhat/bufflood -c -P sctp -a 127.0.0.1
- root@debian64:/sys/fs/cgroup/memory/rmem#
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