INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-386-3,10.128.0.46' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 120.383026] syzkaller525833 (4473) used greatest stack depth: 16864 bytes left executing program executing program [ 120.503443] syzkaller525833 (4493) used greatest stack depth: 16528 bytes left executing program executing program [ 122.793146] syzkaller525833 (3057) used greatest stack depth: 15488 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 131.134243] syzkaller525833 (4109) used greatest stack depth: 15440 bytes left [ 161.055684] kworker/1:1 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 161.068848] kworker/1:1 cpuset=/ mems_allowed=0 [ 161.073744] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.14.0-rc8+ #79 [ 161.080561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 161.089904] Workqueue: events pcpu_balance_workfn [ 161.094727] Call Trace: [ 161.097297] dump_stack+0x194/0x257 [ 161.100912] ? arch_local_irq_restore+0x53/0x53 [ 161.105582] dump_header+0x234/0xa0e [ 161.109284] ? check_noncircular+0x20/0x20 [ 161.113500] ? task_will_free_mem+0x252/0xaa0 [ 161.117987] ? pagefault_out_of_memory+0x152/0x152 [ 161.122910] ? ___ratelimit+0x30d/0x630 [ 161.126869] ? lock_downgrade+0x990/0x990 [ 161.131006] ? lock_release+0xa40/0xa40 [ 161.134969] ? mark_held_locks+0xaf/0x100 [ 161.139102] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 161.144190] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 161.149190] ? trace_hardirqs_on+0xd/0x10 [ 161.153327] ? ___ratelimit+0x95/0x630 [ 161.157199] ? idr_get_free_cmn+0xfd0/0xfd0 [ 161.161524] oom_kill_process+0x86d/0x13d0 [ 161.165739] ? lock_release+0xa40/0xa40 [ 161.169692] ? lock_release+0xa40/0xa40 [ 161.173658] ? do_raw_spin_trylock+0x190/0x190 [ 161.178238] ? oom_evaluate_task+0x480/0x480 [ 161.182633] ? find_lock_task_mm+0x23b/0x460 [ 161.187029] ? task_will_free_mem+0xaa0/0xaa0 [ 161.191510] ? has_capability+0x30/0x30 [ 161.195464] ? do_raw_spin_trylock+0x190/0x190 [ 161.200033] ? find_held_lock+0x35/0x1d0 [ 161.204084] ? check_noncircular+0x20/0x20 [ 161.208307] ? oom_badness+0xdf/0xb80 [ 161.212095] ? lock_downgrade+0x990/0x990 [ 161.216232] ? find_lock_task_mm+0x460/0x460 [ 161.220618] ? lock_release+0xa40/0xa40 [ 161.224591] ? find_held_lock+0x35/0x1d0 [ 161.228646] ? out_of_memory+0xaa9/0x11d0 [ 161.232777] ? lock_downgrade+0x990/0x990 [ 161.236913] ? lock_release+0xa40/0xa40 [ 161.240865] ? lock_acquire+0x1d5/0x580 [ 161.244820] ? blocking_notifier_call_chain+0x112/0x190 [ 161.250165] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 161.255180] ? oom_evaluate_task+0x284/0x480 [ 161.259578] out_of_memory+0x7dc/0x11d0 [ 161.263533] ? trace_hardirqs_on+0xd/0x10 [ 161.267675] ? oom_killer_disable+0x310/0x310 [ 161.272155] ? mutex_trylock+0x23a/0x2d0 [ 161.276205] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 161.281637] ? check_same_owner+0x320/0x320 [ 161.285958] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 161.290831] ? warn_alloc+0x2f0/0x2f0 [ 161.294618] ? lock_downgrade+0x990/0x990 [ 161.298754] ? lock_release+0xa40/0xa40 [ 161.302717] ? print_irqtrace_events+0x270/0x270 [ 161.307475] ? mutex_spin_on_owner+0x446/0xb50 [ 161.312053] ? check_noncircular+0x20/0x20 [ 161.316268] ? __lock_acquire+0x664/0x3df0 [ 161.320493] ? check_same_owner+0x320/0x320 [ 161.324863] ? check_same_owner+0x320/0x320 [ 161.329169] ? print_irqtrace_events+0x270/0x270 [ 161.333918] ? __might_sleep+0x95/0x190 [ 161.337884] __alloc_pages_nodemask+0x9fb/0xd80 [ 161.342550] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 161.347550] ? __lock_acquire+0x664/0x3df0 [ 161.351772] ? dequeue_task_fair+0x147d/0x39e0 [ 161.356335] ? print_irqtrace_events+0x270/0x270 [ 161.361087] ? print_irqtrace_events+0x270/0x270 [ 161.365836] ? __lock_is_held+0xb6/0x140 [ 161.369893] ? find_next_bit+0x27/0x30 [ 161.373773] pcpu_populate_chunk+0x1b3/0x880 [ 161.378185] pcpu_balance_workfn+0xf3e/0x1520 [ 161.382667] ? check_noncircular+0x20/0x20 [ 161.386887] ? check_noncircular+0x20/0x20 [ 161.391122] ? pcpu_create_chunk+0x900/0x900 [ 161.395527] ? check_noncircular+0x20/0x20 [ 161.399757] ? lock_acquire+0x1d5/0x580 [ 161.403708] ? lock_acquire+0x1d5/0x580 [ 161.407664] ? process_one_work+0xb32/0x1bc0 [ 161.412077] ? __lock_is_held+0xb6/0x140 [ 161.416144] process_one_work+0xbf0/0x1bc0 [ 161.420362] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 161.425554] ? pwq_dec_nr_in_flight+0x450/0x450 [ 161.430211] ? preempt_notifier_dec+0x20/0x20 [ 161.434711] ? __schedule+0x8f3/0x2060 [ 161.439223] ? check_noncircular+0x20/0x20 [ 161.443439] ? account_entity_enqueue+0x3c8/0x6e0 [ 161.448278] ? check_noncircular+0x20/0x20 [ 161.452531] ? lock_acquire+0x1d5/0x580 [ 161.456488] ? lock_acquire+0x1d5/0x580 [ 161.460443] ? worker_thread+0x4a3/0x1990 [ 161.464574] ? lock_downgrade+0x990/0x990 [ 161.468708] ? lock_release+0xa40/0xa40 [ 161.472673] ? retint_kernel+0x10/0x10 [ 161.476546] ? do_raw_spin_trylock+0x190/0x190 [ 161.481136] worker_thread+0x223/0x1990 [ 161.485127] ? process_one_work+0x1bc0/0x1bc0 [ 161.489612] ? _raw_spin_unlock_irq+0x27/0x70 [ 161.494094] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 161.499092] ? trace_hardirqs_on+0xd/0x10 [ 161.503221] ? _raw_spin_unlock_irq+0x27/0x70 [ 161.507699] ? finish_task_switch+0x1d3/0x740 [ 161.512177] ? finish_task_switch+0x1aa/0x740 [ 161.516665] ? preempt_notifier_dec+0x20/0x20 [ 161.521160] ? __schedule+0x8f3/0x2060 [ 161.525065] ? find_held_lock+0x35/0x1d0 [ 161.529119] ? find_held_lock+0x35/0x1d0 [ 161.533176] ? complete+0x62/0x80 [ 161.536627] ? __schedule+0x2060/0x2060 [ 161.540581] ? do_wait_intr+0x3e0/0x3e0 [ 161.544532] ? __lockdep_init_map+0xe4/0x650 [ 161.548927] ? do_raw_spin_trylock+0x190/0x190 [ 161.553491] ? lockdep_init_map+0x9/0x10 [ 161.557537] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 161.562626] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 161.567628] ? trace_hardirqs_on+0xd/0x10 [ 161.571763] ? __kthread_parkme+0x175/0x240 [ 161.576076] kthread+0x35e/0x430 [ 161.579424] ? process_one_work+0x1bc0/0x1bc0 [ 161.583898] ? kthread_create_on_node+0x100/0x100 [ 161.588727] ret_from_fork+0x2a/0x40 [ 161.592490] Mem-Info: [ 161.594918] active_anon:3212 inactive_anon:32 isolated_anon:0 [ 161.594918] active_file:22 inactive_file:7 isolated_file:0 [ 161.594918] unevictable:0 dirty:0 writeback:0 unstable:0 [ 161.594918] slab_reclaimable:5862 slab_unreclaimable:82784 [ 161.594918] mapped:3 shmem:39 pagetables:1650 bounce:0 [ 161.594918] free:24326 free_pcp:411 free_cma:0 [ 161.627058] Node 0 active_anon:12848kB inactive_anon:128kB active_file:84kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 161.653705] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 161.679844] lowmem_reserve[]: 0 2884 6397 6397 [ 161.684458] Node 0 DMA32 free:44408kB min:30396kB low:37992kB high:45588kB active_anon:1376kB inactive_anon:0kB active_file:20kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:952kB local_pcp:608kB free_cma:0kB [ 161.712854] lowmem_reserve[]: 0 0 3513 3513 [ 161.717210] Node 0 Normal free:36988kB min:37020kB low:46272kB high:55524kB active_anon:11472kB inactive_anon:128kB active_file:68kB inactive_file:36kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:9024kB pagetables:5272kB bounce:0kB free_pcp:692kB local_pcp:404kB free_cma:0kB [ 161.746045] lowmem_reserve[]: 0 0 0 0 [ 161.749876] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 161.763610] Node 0 DMA32: 2*4kB (UE) 2*8kB (UM) 0*16kB 1*32kB (U) 1*64kB (M) 8*128kB (UME) 3*256kB (UME) 5*512kB (UME) 3*1024kB (UME) 2*2048kB (ME) 8*4096kB (M) = 44408kB [ 161.779092] Node 0 Normal: 613*4kB (ME) 359*8kB (M) 273*16kB (UME) 155*32kB (ME) 99*64kB (M) 39*128kB (M) 15*256kB (UM) 4*512kB (UM) 5*1024kB (UME) 0*2048kB 0*4096kB = 36988kB [ 161.795005] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 161.803608] 68 total pagecache pages [ 161.807337] 0 pages in swap cache [ 161.810792] Swap cache stats: add 0, delete 0, find 0/0 [ 161.816159] Free swap = 0kB [ 161.819177] Total swap = 0kB [ 161.822198] 1965979 pages RAM [ 161.825307] 0 pages HighMem/MovableOnly [ 161.829286] 323593 pages reserved [ 161.832741] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 161.841502] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 161.850355] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 161.859123] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 161.867886] [ 2788] 0 2788 2493 573 9 3 0 0 dhclient [ 161.876918] [ 2922] 0 2922 14265 165 24 3 0 0 rsyslogd [ 161.885941] [ 2957] 0 2957 4725 48 14 3 0 0 cron [ 161.894628] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 161.903309] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 161.912074] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 161.920832] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 161.929593] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 161.938365] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 161.947128] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 161.955889] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 161.964658] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 161.973335] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 161.982968] [ 3037] 0 3037 580122 302 286 4 0 0 syzkaller525833 [ 161.992598] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 162.002235] [ 3040] 0 3040 524799 274 259 4 0 0 syzkaller525833 [ 162.011876] [ 3042] 0 3042 405957 215 201 3 0 0 syzkaller525833 [ 162.021511] [ 3047] 0 3047 532995 278 263 4 0 0 syzkaller525833 [ 162.031144] [ 3050] 0 3050 395712 210 196 3 0 0 syzkaller525833 [ 162.040772] Out of memory: Kill process 3037 (syzkaller525833) score 0 or sacrifice child [ 162.049354] Killed process 3037 (syzkaller525833) total-vm:2320488kB, anon-rss:1204kB, file-rss:4kB, shmem-rss:0kB [ 162.084252] oom_reaper: reaped process 3037 (syzkaller525833), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 162.320234] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 162.333905] kworker/0:2 cpuset=/ mems_allowed=0 [ 162.338702] CPU: 0 PID: 1364 Comm: kworker/0:2 Not tainted 4.14.0-rc8+ #79 [ 162.345691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 162.355037] Workqueue: events pcpu_balance_workfn [ 162.359848] Call Trace: [ 162.362406] dump_stack+0x194/0x257 [ 162.366006] ? arch_local_irq_restore+0x53/0x53 [ 162.370655] dump_header+0x234/0xa0e [ 162.374341] ? check_noncircular+0x20/0x20 [ 162.378544] ? task_will_free_mem+0x252/0xaa0 [ 162.383011] ? pagefault_out_of_memory+0x152/0x152 [ 162.387915] ? ___ratelimit+0x30d/0x630 [ 162.391860] ? lock_downgrade+0x990/0x990 [ 162.395979] ? lock_release+0xa40/0xa40 [ 162.399926] ? mark_held_locks+0xaf/0x100 [ 162.404054] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 162.409133] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 162.414119] ? trace_hardirqs_on+0xd/0x10 [ 162.418238] ? ___ratelimit+0x95/0x630 [ 162.422095] ? idr_get_free_cmn+0xfd0/0xfd0 [ 162.426393] oom_kill_process+0x86d/0x13d0 [ 162.430595] ? lock_release+0xa40/0xa40 [ 162.434535] ? lock_release+0xa40/0xa40 [ 162.438481] ? do_raw_spin_trylock+0x190/0x190 [ 162.443039] ? oom_evaluate_task+0x480/0x480 [ 162.447419] ? find_lock_task_mm+0x23b/0x460 [ 162.451798] ? task_will_free_mem+0xaa0/0xaa0 [ 162.456262] ? has_capability+0x30/0x30 [ 162.460209] ? do_raw_spin_trylock+0x190/0x190 [ 162.464760] ? find_held_lock+0x35/0x1d0 [ 162.468793] ? check_noncircular+0x20/0x20 [ 162.473429] ? oom_badness+0xdf/0xb80 [ 162.477197] ? lock_downgrade+0x990/0x990 [ 162.481314] ? find_lock_task_mm+0x460/0x460 [ 162.485689] ? lock_release+0xa40/0xa40 [ 162.489640] ? find_held_lock+0x35/0x1d0 [ 162.493673] ? out_of_memory+0xaa9/0x11d0 [ 162.497788] ? lock_downgrade+0x990/0x990 [ 162.501905] ? lock_release+0xa40/0xa40 [ 162.505843] ? lock_acquire+0x1d5/0x580 [ 162.509783] ? blocking_notifier_call_chain+0x112/0x190 [ 162.515113] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 162.520103] ? oom_evaluate_task+0x284/0x480 [ 162.524482] out_of_memory+0x7dc/0x11d0 [ 162.528433] ? oom_killer_disable+0x310/0x310 [ 162.532902] ? mutex_trylock+0x23a/0x2d0 [ 162.536932] ? __lock_is_held+0xb6/0x140 [ 162.540960] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 162.546389] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 162.551227] ? warn_alloc+0x2f0/0x2f0 [ 162.554996] ? __lock_acquire+0x664/0x3df0 [ 162.559205] ? check_noncircular+0x20/0x20 [ 162.563408] ? lock_release+0xa40/0xa40 [ 162.567351] ? print_irqtrace_events+0x270/0x270 [ 162.572079] ? enqueue_task_fair+0x515/0x32b0 [ 162.576551] ? lock_pin_lock+0x360/0x360 [ 162.580583] ? lock_acquire+0x1d5/0x580 [ 162.584524] ? lock_acquire+0x1d5/0x580 [ 162.588468] ? check_noncircular+0x20/0x20 [ 162.592671] ? __lock_acquire+0x664/0x3df0 [ 162.596880] ? check_same_owner+0x320/0x320 [ 162.601171] ? __lock_is_held+0xb6/0x140 [ 162.605219] ? __lock_is_held+0xb6/0x140 [ 162.609260] ? check_same_owner+0x320/0x320 [ 162.613551] ? __lock_is_held+0xb6/0x140 [ 162.617587] ? __might_sleep+0x95/0x190 [ 162.621532] __alloc_pages_nodemask+0x9fb/0xd80 [ 162.626176] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 162.631160] ? __lock_acquire+0x664/0x3df0 [ 162.635362] ? dequeue_task_fair+0x147d/0x39e0 [ 162.639910] ? print_irqtrace_events+0x270/0x270 [ 162.644639] ? print_irqtrace_events+0x270/0x270 [ 162.649368] ? __lock_is_held+0xb6/0x140 [ 162.653404] ? find_next_bit+0x27/0x30 [ 162.657265] pcpu_populate_chunk+0x1b3/0x880 [ 162.661653] pcpu_balance_workfn+0xf3e/0x1520 [ 162.666128] ? check_noncircular+0x20/0x20 [ 162.670330] ? check_noncircular+0x20/0x20 [ 162.674544] ? pcpu_create_chunk+0x900/0x900 [ 162.678929] ? check_noncircular+0x20/0x20 [ 162.683137] ? lock_acquire+0x1d5/0x580 [ 162.687086] ? lock_acquire+0x1d5/0x580 [ 162.691031] ? process_one_work+0xb32/0x1bc0 [ 162.695421] ? __lock_is_held+0xb6/0x140 [ 162.699470] process_one_work+0xbf0/0x1bc0 [ 162.703673] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 162.708841] ? pwq_dec_nr_in_flight+0x450/0x450 [ 162.713480] ? preempt_notifier_dec+0x20/0x20 [ 162.717954] ? __schedule+0x8f3/0x2060 [ 162.721819] ? check_noncircular+0x20/0x20 [ 162.726035] ? check_noncircular+0x20/0x20 [ 162.730241] ? check_noncircular+0x20/0x20 [ 162.734461] ? lock_acquire+0x1d5/0x580 [ 162.738405] ? lock_acquire+0x1d5/0x580 [ 162.742345] ? worker_thread+0x4a3/0x1990 [ 162.746459] ? lock_downgrade+0x990/0x990 [ 162.750576] ? lock_release+0xa40/0xa40 [ 162.754517] ? worker_pool_assign_id+0x1b0/0x1b0 [ 162.759241] ? do_raw_spin_trylock+0x190/0x190 [ 162.763803] worker_thread+0x223/0x1990 [ 162.767762] ? process_one_work+0x1bc0/0x1bc0 [ 162.772229] ? _raw_spin_unlock_irq+0x27/0x70 [ 162.776692] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 162.781675] ? trace_hardirqs_on+0xd/0x10 [ 162.785789] ? _raw_spin_unlock_irq+0x27/0x70 [ 162.790253] ? finish_task_switch+0x1d3/0x740 [ 162.794714] ? finish_task_switch+0x1aa/0x740 [ 162.799192] ? preempt_notifier_dec+0x20/0x20 [ 162.803665] ? __schedule+0x8f3/0x2060 [ 162.807539] ? find_held_lock+0x35/0x1d0 [ 162.811573] ? find_held_lock+0x35/0x1d0 [ 162.815608] ? complete+0x62/0x80 [ 162.819043] ? __schedule+0x2060/0x2060 [ 162.822982] ? do_wait_intr+0x3e0/0x3e0 [ 162.826924] ? __lockdep_init_map+0xe4/0x650 [ 162.831301] ? do_raw_spin_trylock+0x190/0x190 [ 162.835849] ? lockdep_init_map+0x9/0x10 [ 162.839877] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 162.844949] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 162.849933] ? trace_hardirqs_on+0xd/0x10 [ 162.854066] ? __kthread_parkme+0x175/0x240 [ 162.858361] kthread+0x35e/0x430 [ 162.861696] ? process_one_work+0x1bc0/0x1bc0 [ 162.866158] ? kthread_create_on_node+0x100/0x100 [ 162.870971] ret_from_fork+0x2a/0x40 [ 162.874730] Mem-Info: [ 162.877168] active_anon:2912 inactive_anon:32 isolated_anon:0 [ 162.877168] active_file:18 inactive_file:2 isolated_file:0 [ 162.877168] unevictable:0 dirty:0 writeback:0 unstable:0 [ 162.877168] slab_reclaimable:5863 slab_unreclaimable:82784 [ 162.877168] mapped:30 shmem:39 pagetables:1650 bounce:0 [ 162.877168] free:24441 free_pcp:182 free_cma:0 [ 162.909387] Node 0 active_anon:11648kB inactive_anon:128kB active_file:72kB inactive_file:8kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:120kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 162.935920] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 162.962052] lowmem_reserve[]: 0 2884 6397 6397 [ 162.966639] Node 0 DMA32 free:45052kB min:30396kB low:37992kB high:45588kB active_anon:1076kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:372kB local_pcp:372kB free_cma:0kB [ 162.994911] lowmem_reserve[]: 0 0 3513 3513 [ 162.999231] Node 0 Normal free:36804kB min:37020kB low:46272kB high:55524kB active_anon:10672kB inactive_anon:128kB active_file:116kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:9024kB pagetables:5272kB bounce:0kB free_pcp:356kB local_pcp:356kB free_cma:0kB [ 163.028038] lowmem_reserve[]: 0 0 0 0 [ 163.031837] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 163.045405] Node 0 DMA32: 65*4kB (UME) 43*8kB (UME) 8*16kB (UME) 7*32kB (UME) 3*64kB (UE) 5*128kB (UE) 3*256kB (UME) 5*512kB (UME) 3*1024kB (UME) 2*2048kB (ME) 8*4096kB (M) = 45052kB [ 163.061852] Node 0 Normal: 727*4kB (UM) 431*8kB (ME) 277*16kB (M) 151*32kB (ME) 101*64kB (UME) 41*128kB (UME) 15*256kB (UME) 3*512kB (ME) 2*1024kB (M) 1*2048kB (M) 0*4096kB = 36804kB [ 163.078306] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 163.086864] 86 total pagecache pages [ 163.090562] 0 pages in swap cache [ 163.093995] Swap cache stats: add 0, delete 0, find 0/0 [ 163.099349] Free swap = 0kB [ 163.102347] Total swap = 0kB [ 163.105347] 1965979 pages RAM [ 163.108435] 0 pages HighMem/MovableOnly [ 163.112390] 323593 pages reserved [ 163.115827] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 163.124492] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 163.133233] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 163.141989] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 163.150740] [ 2788] 0 2788 2493 573 9 3 0 0 dhclient [ 163.159741] [ 2922] 0 2922 14265 165 24 3 0 0 rsyslogd [ 163.168740] [ 2957] 0 2957 4725 48 14 3 0 0 cron [ 163.177399] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 163.186067] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 163.194805] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 163.203543] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 163.212290] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 163.221032] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 163.229768] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 163.238504] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 163.247242] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 163.255890] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 163.265494] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 163.275098] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 163.284702] [ 3040] 0 3040 524799 274 259 4 0 0 syzkaller525833 [ 163.294309] [ 3042] 0 3042 405957 215 201 3 0 0 syzkaller525833 [ 163.303918] [ 3047] 0 3047 532995 278 263 4 0 0 syzkaller525833 [ 163.313525] [ 3050] 0 3050 395712 210 196 3 0 0 syzkaller525833 [ 163.323130] Out of memory: Kill process 2788 (dhclient) score 0 or sacrifice child [ 163.331038] Killed process 2788 (dhclient) total-vm:9972kB, anon-rss:2292kB, file-rss:0kB, shmem-rss:0kB [ 163.949485] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 163.962557] kworker/0:2 cpuset=/ mems_allowed=0 [ 163.967268] CPU: 0 PID: 1364 Comm: kworker/0:2 Not tainted 4.14.0-rc8+ #79 [ 163.974259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 163.983595] Workqueue: events pcpu_balance_workfn [ 163.988405] Call Trace: [ 163.990965] dump_stack+0x194/0x257 [ 163.994566] ? arch_local_irq_restore+0x53/0x53 [ 163.999213] dump_header+0x234/0xa0e [ 164.002897] ? check_noncircular+0x20/0x20 [ 164.007102] ? task_will_free_mem+0x252/0xaa0 [ 164.011570] ? pagefault_out_of_memory+0x152/0x152 [ 164.016471] ? ___ratelimit+0x30d/0x630 [ 164.020413] ? lock_downgrade+0x990/0x990 [ 164.024531] ? lock_release+0xa40/0xa40 [ 164.028477] ? mark_held_locks+0xaf/0x100 [ 164.032593] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 164.037667] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 164.042650] ? trace_hardirqs_on+0xd/0x10 [ 164.046766] ? ___ratelimit+0x95/0x630 [ 164.050623] ? idr_get_free_cmn+0xfd0/0xfd0 [ 164.054924] oom_kill_process+0x86d/0x13d0 [ 164.059125] ? lock_release+0xa40/0xa40 [ 164.063065] ? lock_release+0xa40/0xa40 [ 164.067015] ? do_raw_spin_trylock+0x190/0x190 [ 164.071578] ? oom_evaluate_task+0x480/0x480 [ 164.075957] ? find_lock_task_mm+0x23b/0x460 [ 164.080337] ? task_will_free_mem+0xaa0/0xaa0 [ 164.084804] ? has_capability+0x30/0x30 [ 164.088748] ? do_raw_spin_trylock+0x190/0x190 [ 164.093299] ? find_held_lock+0x35/0x1d0 [ 164.097332] ? check_noncircular+0x20/0x20 [ 164.101535] ? oom_badness+0xdf/0xb80 [ 164.105304] ? lock_downgrade+0x990/0x990 [ 164.109421] ? find_lock_task_mm+0x460/0x460 [ 164.113793] ? lock_release+0xa40/0xa40 [ 164.117746] ? find_held_lock+0x35/0x1d0 [ 164.121784] ? out_of_memory+0xaa9/0x11d0 [ 164.125906] ? lock_downgrade+0x990/0x990 [ 164.130031] ? lock_release+0xa40/0xa40 [ 164.133971] ? lock_acquire+0x1d5/0x580 [ 164.137916] ? blocking_notifier_call_chain+0x112/0x190 [ 164.143246] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 164.148236] ? oom_evaluate_task+0x284/0x480 [ 164.152618] out_of_memory+0x7dc/0x11d0 [ 164.156559] ? trace_hardirqs_on+0xd/0x10 [ 164.160681] ? oom_killer_disable+0x310/0x310 [ 164.165144] ? mutex_trylock+0x23a/0x2d0 [ 164.169177] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 164.174595] ? check_same_owner+0x320/0x320 [ 164.178900] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 164.183752] ? warn_alloc+0x2f0/0x2f0 [ 164.187527] ? check_noncircular+0x20/0x20 [ 164.191730] ? lock_release+0xa40/0xa40 [ 164.195671] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 164.200835] ? print_irqtrace_events+0x270/0x270 [ 164.205566] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 164.210726] ? lock_pin_lock+0x360/0x360 [ 164.214760] ? lock_acquire+0x1d5/0x580 [ 164.218702] ? lock_acquire+0x1d5/0x580 [ 164.222647] ? check_noncircular+0x20/0x20 [ 164.226850] ? __lock_acquire+0x664/0x3df0 [ 164.231058] ? check_same_owner+0x320/0x320 [ 164.235380] ? check_same_owner+0x320/0x320 [ 164.239670] ? print_irqtrace_events+0x270/0x270 [ 164.244400] ? __might_sleep+0x95/0x190 [ 164.248346] __alloc_pages_nodemask+0x9fb/0xd80 [ 164.252991] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 164.257986] ? __lock_acquire+0x664/0x3df0 [ 164.262190] ? dequeue_task_fair+0x147d/0x39e0 [ 164.266738] ? print_irqtrace_events+0x270/0x270 [ 164.271462] ? __might_sleep+0x95/0x190 [ 164.275406] ? print_irqtrace_events+0x270/0x270 [ 164.280138] ? __lock_is_held+0xb6/0x140 [ 164.284177] ? find_next_bit+0x27/0x30 [ 164.288046] pcpu_populate_chunk+0x1b3/0x880 [ 164.292439] pcpu_balance_workfn+0xf3e/0x1520 [ 164.296910] ? check_noncircular+0x20/0x20 [ 164.301122] ? check_noncircular+0x20/0x20 [ 164.305337] ? pcpu_create_chunk+0x900/0x900 [ 164.309722] ? check_noncircular+0x20/0x20 [ 164.313930] ? lock_acquire+0x1d5/0x580 [ 164.317870] ? lock_acquire+0x1d5/0x580 [ 164.321815] ? process_one_work+0xb32/0x1bc0 [ 164.326201] ? __lock_is_held+0xb6/0x140 [ 164.330244] process_one_work+0xbf0/0x1bc0 [ 164.334447] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 164.339615] ? pwq_dec_nr_in_flight+0x450/0x450 [ 164.344257] ? preempt_notifier_dec+0x20/0x20 [ 164.348731] ? __schedule+0x8f3/0x2060 [ 164.352613] ? check_noncircular+0x20/0x20 [ 164.356822] ? check_noncircular+0x20/0x20 [ 164.361029] ? check_noncircular+0x20/0x20 [ 164.365248] ? lock_acquire+0x1d5/0x580 [ 164.369189] ? lock_acquire+0x1d5/0x580 [ 164.373130] ? worker_thread+0x4a3/0x1990 [ 164.377247] ? lock_downgrade+0x990/0x990 [ 164.381366] ? lock_release+0xa40/0xa40 [ 164.385310] ? worker_pool_assign_id+0x1b0/0x1b0 [ 164.390043] ? do_raw_spin_trylock+0x190/0x190 [ 164.394605] worker_thread+0x223/0x1990 [ 164.398566] ? process_one_work+0x1bc0/0x1bc0 [ 164.403035] ? _raw_spin_unlock_irq+0x27/0x70 [ 164.407509] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 164.412495] ? trace_hardirqs_on+0xd/0x10 [ 164.416611] ? _raw_spin_unlock_irq+0x27/0x70 [ 164.421076] ? finish_task_switch+0x1d3/0x740 [ 164.425538] ? finish_task_switch+0x1aa/0x740 [ 164.430007] ? preempt_notifier_dec+0x20/0x20 [ 164.434486] ? __schedule+0x8f3/0x2060 [ 164.438361] ? find_held_lock+0x35/0x1d0 [ 164.442394] ? find_held_lock+0x35/0x1d0 [ 164.446429] ? complete+0x62/0x80 [ 164.449861] ? __schedule+0x2060/0x2060 [ 164.453806] ? do_wait_intr+0x3e0/0x3e0 [ 164.457748] ? __lockdep_init_map+0xe4/0x650 [ 164.462127] ? do_raw_spin_trylock+0x190/0x190 [ 164.466675] ? lockdep_init_map+0x9/0x10 [ 164.470706] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 164.475777] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 164.480760] ? trace_hardirqs_on+0xd/0x10 [ 164.484883] ? __kthread_parkme+0x175/0x240 [ 164.489176] kthread+0x35e/0x430 [ 164.492511] ? process_one_work+0x1bc0/0x1bc0 [ 164.496974] ? kthread_create_on_node+0x100/0x100 [ 164.501787] ret_from_fork+0x2a/0x40 [ 164.505538] Mem-Info: [ 164.507965] active_anon:2339 inactive_anon:32 isolated_anon:0 [ 164.507965] active_file:38 inactive_file:8 isolated_file:0 [ 164.507965] unevictable:0 dirty:10 writeback:0 unstable:0 [ 164.507965] slab_reclaimable:5875 slab_unreclaimable:82887 [ 164.507965] mapped:18 shmem:39 pagetables:1641 bounce:0 [ 164.507965] free:24289 free_pcp:442 free_cma:0 [ 164.540280] Node 0 active_anon:9356kB inactive_anon:128kB active_file:152kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:72kB dirty:40kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 164.567035] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 164.593176] lowmem_reserve[]: 0 2884 6397 6397 [ 164.597797] Node 0 DMA32 free:44260kB min:30396kB low:37992kB high:45588kB active_anon:1060kB inactive_anon:0kB active_file:0kB inactive_file:28kB unevictable:0kB writepending:36kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:700kB local_pcp:344kB free_cma:0kB [ 164.626277] lowmem_reserve[]: 0 0 3513 3513 [ 164.630630] Node 0 Normal free:36988kB min:37020kB low:46272kB high:55524kB active_anon:8296kB inactive_anon:128kB active_file:48kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8992kB pagetables:5236kB bounce:0kB free_pcp:1068kB local_pcp:448kB free_cma:0kB [ 164.659467] lowmem_reserve[]: 0 0 0 0 [ 164.663304] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 164.676947] Node 0 DMA32: 1*4kB (U) 18*8kB (UME) 3*16kB (ME) 7*32kB (UME) 3*64kB (UME) 3*128kB (UM) 3*256kB (UME) 5*512kB (UME) 3*1024kB (UME) 2*2048kB (ME) 8*4096kB (M) = 44260kB [ 164.693235] Node 0 Normal: 495*4kB (ME) 406*8kB (UM) 269*16kB (ME) 152*32kB (UME) 95*64kB (ME) 43*128kB (UME) 17*256kB (ME) 5*512kB (ME) 4*1024kB (UM) 0*2048kB 0*4096kB = 36988kB [ 164.709410] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 164.717992] 91 total pagecache pages [ 164.721721] 0 pages in swap cache [ 164.725184] Swap cache stats: add 0, delete 0, find 0/0 [ 164.730558] Free swap = 0kB [ 164.733577] Total swap = 0kB [ 164.736596] 1965979 pages RAM [ 164.739702] 0 pages HighMem/MovableOnly [ 164.743678] 323593 pages reserved [ 164.747133] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 164.755829] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 164.764614] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 164.773393] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 164.782158] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 164.791188] [ 2957] 0 2957 4725 48 14 3 0 0 cron [ 164.799869] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 164.808550] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 164.817315] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 164.826082] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 164.834853] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 164.843623] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 164.852369] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 164.861130] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 164.869897] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 164.878575] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 164.888209] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 164.897846] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 164.907481] [ 3040] 0 3040 524799 274 259 4 0 0 syzkaller525833 [ 164.917114] [ 3042] 0 3042 405957 215 201 3 0 0 syzkaller525833 [ 164.926755] [ 3047] 0 3047 532995 278 263 4 0 0 syzkaller525833 [ 164.936387] [ 3050] 0 3050 395712 210 196 3 0 0 syzkaller525833 [ 164.946039] Out of memory: Kill process 3047 (syzkaller525833) score 0 or sacrifice child [ 164.954412] Killed process 3047 (syzkaller525833) total-vm:2131980kB, anon-rss:1108kB, file-rss:4kB, shmem-rss:0kB [ 164.969898] oom_reaper: reaped process 3047 (syzkaller525833), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 165.888200] kworker/1:1 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 165.901336] kworker/1:1 cpuset=/ mems_allowed=0 [ 165.906057] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.14.0-rc8+ #79 [ 165.912877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.922230] Workqueue: events pcpu_balance_workfn [ 165.927059] Call Trace: [ 165.929627] dump_stack+0x194/0x257 [ 165.933243] ? arch_local_irq_restore+0x53/0x53 [ 165.937902] dump_header+0x234/0xa0e [ 165.941590] ? check_noncircular+0x20/0x20 [ 165.945796] ? task_will_free_mem+0x252/0xaa0 [ 165.950279] ? pagefault_out_of_memory+0x152/0x152 [ 165.955204] ? ___ratelimit+0x30d/0x630 [ 165.959168] ? lock_downgrade+0x990/0x990 [ 165.963308] ? lock_release+0xa40/0xa40 [ 165.967276] ? mark_held_locks+0xaf/0x100 [ 165.971410] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 165.976502] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 165.981506] ? trace_hardirqs_on+0xd/0x10 [ 165.985636] ? ___ratelimit+0x95/0x630 [ 165.989506] ? idr_get_free_cmn+0xfd0/0xfd0 [ 165.993815] oom_kill_process+0x86d/0x13d0 [ 165.998027] ? lock_release+0xa40/0xa40 [ 166.001986] ? lock_release+0xa40/0xa40 [ 166.005933] ? do_raw_spin_trylock+0x190/0x190 [ 166.010510] ? oom_evaluate_task+0x480/0x480 [ 166.014897] ? find_lock_task_mm+0x23b/0x460 [ 166.019288] ? task_will_free_mem+0xaa0/0xaa0 [ 166.023762] ? has_capability+0x30/0x30 [ 166.027716] ? do_raw_spin_trylock+0x190/0x190 [ 166.032283] ? find_held_lock+0x35/0x1d0 [ 166.036333] ? check_noncircular+0x20/0x20 [ 166.040547] ? oom_badness+0xdf/0xb80 [ 166.044326] ? lock_downgrade+0x990/0x990 [ 166.048462] ? find_lock_task_mm+0x460/0x460 [ 166.052846] ? lock_release+0xa40/0xa40 [ 166.056798] ? find_held_lock+0x35/0x1d0 [ 166.060837] ? out_of_memory+0xaa9/0x11d0 [ 166.064956] ? lock_downgrade+0x990/0x990 [ 166.069084] ? lock_release+0xa40/0xa40 [ 166.073037] ? lock_acquire+0x1d5/0x580 [ 166.076989] ? blocking_notifier_call_chain+0x112/0x190 [ 166.082331] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 166.087343] ? oom_evaluate_task+0x284/0x480 [ 166.091733] out_of_memory+0x7dc/0x11d0 [ 166.095684] ? oom_killer_disable+0x310/0x310 [ 166.100149] ? mutex_trylock+0x23a/0x2d0 [ 166.104190] ? __lock_is_held+0xb6/0x140 [ 166.108241] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 166.113677] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 166.118543] ? warn_alloc+0x2f0/0x2f0 [ 166.122334] ? check_noncircular+0x20/0x20 [ 166.126549] ? lock_release+0xa40/0xa40 [ 166.130500] ? update_sd_lb_stats+0x3a7/0x2780 [ 166.135072] ? print_irqtrace_events+0x270/0x270 [ 166.139806] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 166.144969] ? lock_pin_lock+0x360/0x360 [ 166.149018] ? lock_acquire+0x1d5/0x580 [ 166.152969] ? lock_acquire+0x1d5/0x580 [ 166.156914] ? check_noncircular+0x20/0x20 [ 166.161127] ? __lock_acquire+0x664/0x3df0 [ 166.165353] ? check_same_owner+0x320/0x320 [ 166.169671] ? __lock_is_held+0xb6/0x140 [ 166.173715] ? check_same_owner+0x320/0x320 [ 166.178016] ? print_irqtrace_events+0x270/0x270 [ 166.182769] ? __might_sleep+0x95/0x190 [ 166.186737] __alloc_pages_nodemask+0x9fb/0xd80 [ 166.191408] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 166.196419] ? __lock_acquire+0x664/0x3df0 [ 166.200640] ? dequeue_task_fair+0x147d/0x39e0 [ 166.205211] ? print_irqtrace_events+0x270/0x270 [ 166.209953] ? print_irqtrace_events+0x270/0x270 [ 166.214686] ? __lock_is_held+0xb6/0x140 [ 166.218732] ? find_next_bit+0x27/0x30 [ 166.222598] pcpu_populate_chunk+0x1b3/0x880 [ 166.226993] pcpu_balance_workfn+0xf3e/0x1520 [ 166.231475] ? check_noncircular+0x20/0x20 [ 166.235691] ? check_noncircular+0x20/0x20 [ 166.239908] ? pcpu_create_chunk+0x900/0x900 [ 166.244312] ? check_noncircular+0x20/0x20 [ 166.248536] ? lock_acquire+0x1d5/0x580 [ 166.252485] ? lock_acquire+0x1d5/0x580 [ 166.256440] ? process_one_work+0xb32/0x1bc0 [ 166.260834] ? __lock_is_held+0xb6/0x140 [ 166.264888] process_one_work+0xbf0/0x1bc0 [ 166.269101] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 166.274294] ? pwq_dec_nr_in_flight+0x450/0x450 [ 166.278940] ? preempt_notifier_dec+0x20/0x20 [ 166.283433] ? __schedule+0x8f3/0x2060 [ 166.287320] ? check_noncircular+0x20/0x20 [ 166.291532] ? account_entity_enqueue+0x3c8/0x6e0 [ 166.296365] ? check_noncircular+0x20/0x20 [ 166.300592] ? lock_acquire+0x1d5/0x580 [ 166.304537] ? lock_acquire+0x1d5/0x580 [ 166.308485] ? worker_thread+0x4a3/0x1990 [ 166.312610] ? lock_downgrade+0x990/0x990 [ 166.316730] ? lock_release+0xa40/0xa40 [ 166.320675] ? retint_kernel+0x10/0x10 [ 166.324538] ? do_raw_spin_trylock+0x190/0x190 [ 166.329120] worker_thread+0x223/0x1990 [ 166.333111] ? process_one_work+0x1bc0/0x1bc0 [ 166.337586] ? _raw_spin_unlock_irq+0x27/0x70 [ 166.342062] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 166.347063] ? trace_hardirqs_on+0xd/0x10 [ 166.351200] ? _raw_spin_unlock_irq+0x27/0x70 [ 166.355679] ? finish_task_switch+0x1d3/0x740 [ 166.360153] ? finish_task_switch+0x1aa/0x740 [ 166.364628] ? preempt_notifier_dec+0x20/0x20 [ 166.369119] ? __schedule+0x8f3/0x2060 [ 166.373004] ? find_held_lock+0x35/0x1d0 [ 166.377066] ? find_held_lock+0x35/0x1d0 [ 166.381123] ? complete+0x62/0x80 [ 166.384563] ? __schedule+0x2060/0x2060 [ 166.388510] ? do_wait_intr+0x3e0/0x3e0 [ 166.392464] ? __lockdep_init_map+0xe4/0x650 [ 166.396849] ? do_raw_spin_trylock+0x190/0x190 [ 166.401405] ? lockdep_init_map+0x9/0x10 [ 166.405449] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 166.410538] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 166.415534] ? trace_hardirqs_on+0xd/0x10 [ 166.419654] ? __kthread_parkme+0x175/0x240 [ 166.423949] kthread+0x35e/0x430 [ 166.427292] ? process_one_work+0x1bc0/0x1bc0 [ 166.431766] ? kthread_create_on_node+0x100/0x100 [ 166.436585] ret_from_fork+0x2a/0x40 [ 166.440342] Mem-Info: [ 166.442763] active_anon:2063 inactive_anon:32 isolated_anon:0 [ 166.442763] active_file:11 inactive_file:6 isolated_file:0 [ 166.442763] unevictable:0 dirty:0 writeback:0 unstable:0 [ 166.442763] slab_reclaimable:5906 slab_unreclaimable:82736 [ 166.442763] mapped:25 shmem:39 pagetables:1641 bounce:0 [ 166.442763] free:24331 free_pcp:235 free_cma:0 [ 166.474947] Node 0 active_anon:8252kB inactive_anon:128kB active_file:44kB inactive_file:24kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:100kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 166.501572] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 166.527680] lowmem_reserve[]: 0 2884 6397 6397 [ 166.532277] Node 0 DMA32 free:44404kB min:30396kB low:37992kB high:45588kB active_anon:832kB inactive_anon:0kB active_file:60kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:368kB local_pcp:200kB free_cma:0kB [ 166.560568] lowmem_reserve[]: 0 0 3513 3513 [ 166.564898] Node 0 Normal free:37012kB min:37020kB low:46272kB high:55524kB active_anon:7420kB inactive_anon:128kB active_file:0kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8992kB pagetables:5236kB bounce:0kB free_pcp:572kB local_pcp:472kB free_cma:0kB [ 166.593540] lowmem_reserve[]: 0 0 0 0 [ 166.597355] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 166.610993] Node 0 DMA32: 21*4kB (UM) 41*8kB (UME) 15*16kB (UM) 6*32kB (UME) 2*64kB (ME) 1*128kB (E) 2*256kB (UE) 5*512kB (ME) 3*1024kB (UME) 2*2048kB (ME) 8*4096kB (M) = 44108kB [ 166.627187] Node 0 Normal: 656*4kB (UMEH) 434*8kB (MH) 283*16kB (UME) 157*32kB (UMH) 96*64kB (MEH) 42*128kB (UM) 17*256kB (ME) 4*512kB (ME) 3*1024kB (UM) 0*2048kB 0*4096kB = 36640kB [ 166.643601] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 166.652179] 83 total pagecache pages [ 166.655887] 0 pages in swap cache [ 166.659335] Swap cache stats: add 0, delete 0, find 0/0 [ 166.664691] Free swap = 0kB [ 166.667692] Total swap = 0kB [ 166.670693] 1965979 pages RAM [ 166.673783] 0 pages HighMem/MovableOnly [ 166.677738] 323593 pages reserved [ 166.681187] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 166.689873] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 166.698616] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 166.707378] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 166.716142] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 166.725178] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 166.733839] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 166.742508] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 166.751271] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 166.760056] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 166.768803] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 166.777544] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 166.786303] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 166.795066] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 166.803812] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 166.812479] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 166.822112] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 166.831730] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 166.841354] [ 3040] 0 3040 524799 274 259 4 0 0 syzkaller525833 [ 166.850970] [ 3042] 0 3042 405957 215 201 3 0 0 syzkaller525833 [ 166.860584] [ 3047] 0 3047 532995 0 263 4 0 0 syzkaller525833 [ 166.870211] [ 3050] 0 3050 395712 210 196 3 0 0 syzkaller525833 [ 166.879823] Out of memory: Kill process 3040 (syzkaller525833) score 0 or sacrifice child [ 166.888230] Killed process 3040 (syzkaller525833) total-vm:2099196kB, anon-rss:1092kB, file-rss:4kB, shmem-rss:0kB [ 166.904981] oom_reaper: reaped process 3040 (syzkaller525833), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 166.917313] kworker/1:1 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 166.930738] kworker/1:1 cpuset=/ mems_allowed=0 [ 166.935450] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.14.0-rc8+ #79 [ 166.942278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.951619] Workqueue: events pcpu_balance_workfn [ 166.956428] Call Trace: [ 166.958985] dump_stack+0x194/0x257 [ 166.962581] ? arch_local_irq_restore+0x53/0x53 [ 166.967226] dump_header+0x234/0xa0e [ 166.970909] ? check_noncircular+0x20/0x20 [ 166.975109] ? task_will_free_mem+0x252/0xaa0 [ 166.979577] ? pagefault_out_of_memory+0x152/0x152 [ 166.984478] ? ___ratelimit+0x30d/0x630 [ 166.988428] ? lock_downgrade+0x990/0x990 [ 166.992545] ? lock_release+0xa40/0xa40 [ 166.996489] ? mark_held_locks+0xaf/0x100 [ 167.000606] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 167.005676] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 167.010658] ? trace_hardirqs_on+0xd/0x10 [ 167.014774] ? ___ratelimit+0x95/0x630 [ 167.018631] ? idr_get_free_cmn+0xfd0/0xfd0 [ 167.022931] oom_kill_process+0x86d/0x13d0 [ 167.027129] ? lock_release+0xa40/0xa40 [ 167.031067] ? lock_release+0xa40/0xa40 [ 167.035007] ? do_raw_spin_trylock+0x190/0x190 [ 167.039562] ? oom_evaluate_task+0x480/0x480 [ 167.043940] ? find_lock_task_mm+0x23b/0x460 [ 167.048316] ? task_will_free_mem+0xaa0/0xaa0 [ 167.052792] ? has_capability+0x30/0x30 [ 167.056731] ? do_raw_spin_trylock+0x190/0x190 [ 167.061290] ? find_held_lock+0x35/0x1d0 [ 167.065321] ? check_noncircular+0x20/0x20 [ 167.069531] ? oom_badness+0xdf/0xb80 [ 167.073297] ? lock_downgrade+0x990/0x990 [ 167.077412] ? find_lock_task_mm+0x460/0x460 [ 167.081785] ? lock_release+0xa40/0xa40 [ 167.085734] ? find_held_lock+0x35/0x1d0 [ 167.089771] ? out_of_memory+0xaa9/0x11d0 [ 167.093884] ? lock_downgrade+0x990/0x990 [ 167.097999] ? lock_release+0xa40/0xa40 [ 167.101936] ? lock_acquire+0x1d5/0x580 [ 167.105874] ? blocking_notifier_call_chain+0x112/0x190 [ 167.111203] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 167.116193] ? oom_evaluate_task+0x284/0x480 [ 167.120580] out_of_memory+0x7dc/0x11d0 [ 167.124524] ? schedule_timeout+0x170/0x250 [ 167.128902] ? oom_killer_disable+0x310/0x310 [ 167.133362] ? mutex_trylock+0x23a/0x2d0 [ 167.137388] ? __lock_is_held+0xb6/0x140 [ 167.141417] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 167.146844] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 167.151677] ? warn_alloc+0x2f0/0x2f0 [ 167.155449] ? check_noncircular+0x20/0x20 [ 167.159649] ? lock_release+0xa40/0xa40 [ 167.163599] ? update_sd_lb_stats+0x3a7/0x2780 [ 167.168151] ? print_irqtrace_events+0x270/0x270 [ 167.172878] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 167.178041] ? lock_pin_lock+0x360/0x360 [ 167.182077] ? lock_acquire+0x1d5/0x580 [ 167.186021] ? lock_acquire+0x1d5/0x580 [ 167.189969] ? check_noncircular+0x20/0x20 [ 167.194174] ? __lock_acquire+0x664/0x3df0 [ 167.198381] ? check_same_owner+0x320/0x320 [ 167.202710] ? __lock_is_held+0xb6/0x140 [ 167.206776] ? check_same_owner+0x320/0x320 [ 167.211077] ? __lock_is_held+0xb6/0x140 [ 167.215111] ? __might_sleep+0x95/0x190 [ 167.219058] __alloc_pages_nodemask+0x9fb/0xd80 [ 167.223707] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 167.228691] ? __lock_acquire+0x664/0x3df0 [ 167.232891] ? dequeue_task_fair+0x147d/0x39e0 [ 167.237460] ? print_irqtrace_events+0x270/0x270 [ 167.242191] ? print_irqtrace_events+0x270/0x270 [ 167.246917] ? __lock_is_held+0xb6/0x140 [ 167.250951] ? find_next_bit+0x27/0x30 [ 167.254812] pcpu_populate_chunk+0x1b3/0x880 [ 167.259198] pcpu_balance_workfn+0xf3e/0x1520 [ 167.263664] ? check_noncircular+0x20/0x20 [ 167.267868] ? check_noncircular+0x20/0x20 [ 167.272080] ? pcpu_create_chunk+0x900/0x900 [ 167.276465] ? check_noncircular+0x20/0x20 [ 167.280672] ? lock_acquire+0x1d5/0x580 [ 167.284610] ? lock_acquire+0x1d5/0x580 [ 167.288550] ? process_one_work+0xb32/0x1bc0 [ 167.292943] ? __lock_is_held+0xb6/0x140 [ 167.296982] process_one_work+0xbf0/0x1bc0 [ 167.301203] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 167.306378] ? pwq_dec_nr_in_flight+0x450/0x450 [ 167.311019] ? preempt_notifier_dec+0x20/0x20 [ 167.315491] ? __schedule+0x8f3/0x2060 [ 167.319353] ? check_noncircular+0x20/0x20 [ 167.323552] ? account_entity_enqueue+0x3c8/0x6e0 [ 167.328382] ? check_noncircular+0x20/0x20 [ 167.332606] ? lock_acquire+0x1d5/0x580 [ 167.336548] ? lock_acquire+0x1d5/0x580 [ 167.340488] ? worker_thread+0x4a3/0x1990 [ 167.344604] ? lock_downgrade+0x990/0x990 [ 167.348730] ? lock_release+0xa40/0xa40 [ 167.352671] ? retint_kernel+0x10/0x10 [ 167.356527] ? do_raw_spin_trylock+0x190/0x190 [ 167.361090] worker_thread+0x223/0x1990 [ 167.365051] ? process_one_work+0x1bc0/0x1bc0 [ 167.369514] ? _raw_spin_unlock_irq+0x27/0x70 [ 167.373976] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 167.378957] ? trace_hardirqs_on+0xd/0x10 [ 167.383071] ? _raw_spin_unlock_irq+0x27/0x70 [ 167.387534] ? finish_task_switch+0x1d3/0x740 [ 167.391994] ? finish_task_switch+0x1aa/0x740 [ 167.396458] ? preempt_notifier_dec+0x20/0x20 [ 167.400930] ? __schedule+0x8f3/0x2060 [ 167.404802] ? find_held_lock+0x35/0x1d0 [ 167.408850] ? find_held_lock+0x35/0x1d0 [ 167.412885] ? complete+0x62/0x80 [ 167.416312] ? __schedule+0x2060/0x2060 [ 167.420253] ? do_wait_intr+0x3e0/0x3e0 [ 167.424202] ? __lockdep_init_map+0xe4/0x650 [ 167.428586] ? do_raw_spin_trylock+0x190/0x190 [ 167.433134] ? lockdep_init_map+0x9/0x10 [ 167.437163] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 167.442692] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 167.447677] ? trace_hardirqs_on+0xd/0x10 [ 167.451791] ? __kthread_parkme+0x175/0x240 [ 167.456101] kthread+0x35e/0x430 [ 167.459434] ? process_one_work+0x1bc0/0x1bc0 [ 167.463896] ? kthread_create_on_node+0x100/0x100 [ 167.468710] ret_from_fork+0x2a/0x40 [ 167.472507] Mem-Info: [ 167.474925] active_anon:1813 inactive_anon:32 isolated_anon:0 [ 167.474925] active_file:21 inactive_file:42 isolated_file:0 [ 167.474925] unevictable:0 dirty:0 writeback:0 unstable:0 [ 167.474925] slab_reclaimable:5912 slab_unreclaimable:82753 [ 167.474925] mapped:14 shmem:39 pagetables:1641 bounce:0 [ 167.474925] free:24269 free_pcp:263 free_cma:0 [ 167.513481] Node 0 active_anon:7252kB inactive_anon:128kB active_file:96kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):4kB mapped:56kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 167.539841] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 167.565958] lowmem_reserve[]: 0 2884 6397 6397 [ 167.570541] Node 0 DMA32 free:44000kB min:30396kB low:37992kB high:45588kB active_anon:832kB inactive_anon:0kB active_file:0kB inactive_file:100kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:448kB local_pcp:312kB free_cma:0kB [ 167.598904] lowmem_reserve[]: 0 0 3513 3513 [ 167.603232] Node 0 Normal free:36660kB min:37020kB low:46272kB high:55524kB active_anon:6916kB inactive_anon:128kB active_file:232kB inactive_file:216kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8992kB pagetables:5236kB bounce:0kB free_pcp:1028kB local_pcp:396kB free_cma:0kB [ 167.632223] lowmem_reserve[]: 0 0 0 0 [ 167.636042] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 167.649620] Node 0 DMA32: 59*4kB (M) 46*8kB (UME) 17*16kB (UM) 4*32kB (ME) 1*64kB (E) 2*128kB (ME) 2*256kB (UE) 5*512kB (ME) 3*1024kB (UME) 2*2048kB (ME) 8*4096kB (M) = 44332kB [ 167.665546] Node 0 Normal: 569*4kB (UMH) 445*8kB (UMH) 294*16kB (UME) 172*32kB (UMH) 98*64kB (UMH) 42*128kB (UM) 18*256kB (UME) 5*512kB (UME) 2*1024kB (M) 0*2048kB 0*4096kB = 36908kB [ 167.681991] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 167.690556] 88 total pagecache pages [ 167.694256] 0 pages in swap cache [ 167.697691] Swap cache stats: add 0, delete 0, find 0/0 [ 167.703038] Free swap = 0kB [ 167.706044] Total swap = 0kB [ 167.709051] 1965979 pages RAM [ 167.712145] 0 pages HighMem/MovableOnly [ 167.716105] 323593 pages reserved [ 167.719539] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 167.728205] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 167.736949] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 167.745697] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 167.754437] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 167.763435] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 167.772094] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 167.780747] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 167.789483] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 167.798222] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 167.806959] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 167.815696] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 167.824436] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 167.833182] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 167.841945] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 167.850620] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 167.860237] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 167.869856] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 167.879488] [ 3040] 0 3040 524799 0 259 4 0 0 syzkaller525833 [ 167.889107] [ 3042] 0 3042 405957 215 201 3 0 0 syzkaller525833 [ 167.898734] [ 3047] 0 3047 532995 0 263 4 0 0 syzkaller525833 [ 167.908347] [ 3050] 0 3050 395712 210 196 3 0 0 syzkaller525833 [ 167.917963] Out of memory: Kill process 3042 (syzkaller525833) score 0 or sacrifice child [ 167.926358] Killed process 3042 (syzkaller525833) total-vm:1623828kB, anon-rss:856kB, file-rss:4kB, shmem-rss:0kB [ 167.967379] oom_reaper: reaped process 3042 (syzkaller525833), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 168.256182] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 168.269568] kworker/0:2 cpuset=/ mems_allowed=0 [ 168.274390] CPU: 0 PID: 1364 Comm: kworker/0:2 Not tainted 4.14.0-rc8+ #79 [ 168.281384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.290717] Workqueue: events pcpu_balance_workfn [ 168.295528] Call Trace: [ 168.298088] dump_stack+0x194/0x257 [ 168.301696] ? arch_local_irq_restore+0x53/0x53 [ 168.306356] dump_header+0x234/0xa0e [ 168.310047] ? check_noncircular+0x20/0x20 [ 168.314261] ? task_will_free_mem+0x252/0xaa0 [ 168.318732] ? pagefault_out_of_memory+0x152/0x152 [ 168.323636] ? ___ratelimit+0x30d/0x630 [ 168.327585] ? lock_downgrade+0x990/0x990 [ 168.331704] ? lock_release+0xa40/0xa40 [ 168.335652] ? mark_held_locks+0xaf/0x100 [ 168.339774] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 168.344859] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 168.349848] ? trace_hardirqs_on+0xd/0x10 [ 168.353967] ? ___ratelimit+0x95/0x630 [ 168.357825] ? idr_get_free_cmn+0xfd0/0xfd0 [ 168.362135] oom_kill_process+0x86d/0x13d0 [ 168.366339] ? lock_release+0xa40/0xa40 [ 168.370279] ? lock_release+0xa40/0xa40 [ 168.374224] ? do_raw_spin_trylock+0x190/0x190 [ 168.378783] ? oom_evaluate_task+0x480/0x480 [ 168.383164] ? find_lock_task_mm+0x23b/0x460 [ 168.387548] ? task_will_free_mem+0xaa0/0xaa0 [ 168.392020] ? has_capability+0x30/0x30 [ 168.395968] ? do_raw_spin_trylock+0x190/0x190 [ 168.400533] ? find_held_lock+0x35/0x1d0 [ 168.404567] ? check_noncircular+0x20/0x20 [ 168.408771] ? oom_badness+0xdf/0xb80 [ 168.412552] ? lock_downgrade+0x990/0x990 [ 168.416671] ? find_lock_task_mm+0x460/0x460 [ 168.421053] ? lock_release+0xa40/0xa40 [ 168.425008] ? find_held_lock+0x35/0x1d0 [ 168.429061] ? out_of_memory+0xaa9/0x11d0 [ 168.433180] ? lock_downgrade+0x990/0x990 [ 168.437309] ? lock_release+0xa40/0xa40 [ 168.441249] ? lock_acquire+0x1d5/0x580 [ 168.445203] ? blocking_notifier_call_chain+0x112/0x190 [ 168.450535] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 168.455527] ? oom_evaluate_task+0x284/0x480 [ 168.459908] out_of_memory+0x7dc/0x11d0 [ 168.463871] ? oom_killer_disable+0x310/0x310 [ 168.468333] ? mutex_trylock+0x23a/0x2d0 [ 168.472365] ? __lock_is_held+0xb6/0x140 [ 168.476395] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 168.481828] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 168.486669] ? warn_alloc+0x2f0/0x2f0 [ 168.490443] ? check_noncircular+0x20/0x20 [ 168.494660] ? check_noncircular+0x20/0x20 [ 168.498864] ? check_preempt_wakeup+0x5b0/0x1320 [ 168.503589] ? __lock_is_held+0xb6/0x140 [ 168.507624] ? print_irqtrace_events+0x270/0x270 [ 168.512355] ? update_cfs_shares+0x4b0/0x4b0 [ 168.516746] ? find_held_lock+0x35/0x1d0 [ 168.520783] ? __mutex_lock+0x5bd/0x1a80 [ 168.524815] ? check_noncircular+0x20/0x20 [ 168.529026] ? __lock_acquire+0x664/0x3df0 [ 168.533235] ? lock_release+0xa40/0xa40 [ 168.537181] ? memset+0x31/0x40 [ 168.540430] ? do_raw_spin_trylock+0x190/0x190 [ 168.544997] ? __lock_is_held+0xb6/0x140 [ 168.549064] ? check_same_owner+0x320/0x320 [ 168.553354] ? print_irqtrace_events+0x270/0x270 [ 168.558087] ? __might_sleep+0x95/0x190 [ 168.562040] __alloc_pages_nodemask+0x9fb/0xd80 [ 168.566683] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 168.571678] ? __lock_acquire+0x664/0x3df0 [ 168.575881] ? dequeue_task_fair+0x147d/0x39e0 [ 168.580443] ? print_irqtrace_events+0x270/0x270 [ 168.585185] ? __lock_is_held+0xb6/0x140 [ 168.589225] ? find_next_bit+0x27/0x30 [ 168.593088] pcpu_populate_chunk+0x1b3/0x880 [ 168.597480] pcpu_balance_workfn+0xf3e/0x1520 [ 168.601946] ? check_noncircular+0x20/0x20 [ 168.606150] ? check_noncircular+0x20/0x20 [ 168.610353] ? check_noncircular+0x20/0x20 [ 168.614563] ? pcpu_create_chunk+0x900/0x900 [ 168.618949] ? check_noncircular+0x20/0x20 [ 168.623160] ? lock_acquire+0x1d5/0x580 [ 168.627100] ? lock_acquire+0x1d5/0x580 [ 168.631043] ? process_one_work+0xb32/0x1bc0 [ 168.635427] ? __lock_is_held+0xb6/0x140 [ 168.639471] process_one_work+0xbf0/0x1bc0 [ 168.643675] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 168.648843] ? pwq_dec_nr_in_flight+0x450/0x450 [ 168.653484] ? preempt_notifier_dec+0x20/0x20 [ 168.657958] ? __schedule+0x8f3/0x2060 [ 168.661823] ? check_noncircular+0x20/0x20 [ 168.666040] ? check_noncircular+0x20/0x20 [ 168.670243] ? check_noncircular+0x20/0x20 [ 168.674475] ? lock_acquire+0x1d5/0x580 [ 168.678419] ? lock_acquire+0x1d5/0x580 [ 168.682360] ? worker_thread+0x4a3/0x1990 [ 168.686478] ? lock_downgrade+0x990/0x990 [ 168.690596] ? lock_release+0xa40/0xa40 [ 168.694540] ? worker_pool_assign_id+0x1b0/0x1b0 [ 168.699266] ? do_raw_spin_trylock+0x190/0x190 [ 168.703827] worker_thread+0xb26/0x1990 [ 168.707789] ? process_one_work+0x1bc0/0x1bc0 [ 168.712259] ? _raw_spin_unlock_irq+0x27/0x70 [ 168.716727] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 168.721712] ? trace_hardirqs_on+0xd/0x10 [ 168.725829] ? _raw_spin_unlock_irq+0x27/0x70 [ 168.730293] ? finish_task_switch+0x1d3/0x740 [ 168.734779] ? finish_task_switch+0x1aa/0x740 [ 168.739259] ? preempt_notifier_dec+0x20/0x20 [ 168.743733] ? __schedule+0x8f3/0x2060 [ 168.747611] ? find_held_lock+0x35/0x1d0 [ 168.751648] ? find_held_lock+0x35/0x1d0 [ 168.755683] ? complete+0x62/0x80 [ 168.759112] ? __schedule+0x2060/0x2060 [ 168.763053] ? do_wait_intr+0x3e0/0x3e0 [ 168.767006] ? __lockdep_init_map+0xe4/0x650 [ 168.771390] ? do_raw_spin_trylock+0x190/0x190 [ 168.775938] ? lockdep_init_map+0x9/0x10 [ 168.779976] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 168.785056] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 168.790042] ? trace_hardirqs_on+0xd/0x10 [ 168.794159] ? __kthread_parkme+0x175/0x240 [ 168.798456] kthread+0x35e/0x430 [ 168.801790] ? process_one_work+0x1bc0/0x1bc0 [ 168.806348] ? kthread_create_on_node+0x100/0x100 [ 168.811163] ret_from_fork+0x2a/0x40 [ 168.814957] Mem-Info: [ 168.817469] active_anon:1580 inactive_anon:32 isolated_anon:0 [ 168.817469] active_file:15 inactive_file:22 isolated_file:0 [ 168.817469] unevictable:0 dirty:1 writeback:0 unstable:0 [ 168.817469] slab_reclaimable:5919 slab_unreclaimable:82801 [ 168.817469] mapped:13 shmem:39 pagetables:1641 bounce:0 [ 168.817469] free:24259 free_pcp:81 free_cma:0 [ 168.849913] Node 0 active_anon:6320kB inactive_anon:128kB active_file:160kB inactive_file:188kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:52kB dirty:4kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 168.876789] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 168.902953] lowmem_reserve[]: 0 2884 6397 6397 [ 168.907552] Node 0 DMA32 free:44084kB min:30396kB low:37992kB high:45588kB active_anon:400kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:116kB local_pcp:112kB free_cma:0kB [ 168.935769] lowmem_reserve[]: 0 0 3513 3513 [ 168.940121] Node 0 Normal free:36424kB min:37020kB low:46272kB high:55524kB active_anon:5920kB inactive_anon:128kB active_file:8kB inactive_file:356kB unevictable:0kB writepending:4kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8992kB pagetables:5236kB bounce:0kB free_pcp:828kB local_pcp:200kB free_cma:0kB [ 168.968935] lowmem_reserve[]: 0 0 0 0 [ 168.972746] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 168.986436] Node 0 DMA32: 39*4kB (UM) 27*8kB (UME) 18*16kB (UM) 11*32kB (UME) 7*64kB (UME) 3*128kB (ME) 2*256kB (UE) 6*512kB (UME) 2*1024kB (ME) 2*2048kB (ME) 8*4096kB (M) = 44340kB [ 169.002812] Node 0 Normal: 515*4kB (UMEH) 439*8kB (MH) 308*16kB (UM) 181*32kB (UMEH) 99*64kB (MH) 45*128kB (M) 17*256kB (ME) 4*512kB (ME) 2*1024kB (M) 0*2048kB 0*4096kB = 36836kB [ 169.018915] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 169.027485] 51 total pagecache pages [ 169.031213] 0 pages in swap cache [ 169.034652] Swap cache stats: add 0, delete 0, find 0/0 [ 169.040004] Free swap = 0kB [ 169.043037] Total swap = 0kB [ 169.046043] 1965979 pages RAM [ 169.049136] 0 pages HighMem/MovableOnly [ 169.053093] 323593 pages reserved [ 169.056545] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 169.065215] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 169.073963] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 169.082705] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 169.091475] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 169.100491] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 169.109149] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 169.117807] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 169.126557] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 169.135302] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 169.144053] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 169.152806] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 169.161555] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 169.170298] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 169.179063] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 169.187728] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 169.197346] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 169.206975] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 169.216595] [ 3040] 0 3040 524799 0 259 4 0 0 syzkaller525833 [ 169.226216] [ 3042] 0 3042 405957 0 201 3 0 0 syzkaller525833 [ 169.235841] [ 3047] 0 3047 532995 0 263 4 0 0 syzkaller525833 [ 169.245462] [ 3050] 0 3050 395712 210 196 3 0 0 syzkaller525833 [ 169.255077] Out of memory: Kill process 3050 (syzkaller525833) score 0 or sacrifice child [ 169.263475] Killed process 3050 (syzkaller525833) total-vm:1582848kB, anon-rss:836kB, file-rss:4kB, shmem-rss:0kB [ 169.280842] oom_reaper: reaped process 3050 (syzkaller525833), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 169.448530] rsyslogd invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 169.549085] rsyslogd cpuset=/ mems_allowed=0 [ 169.553722] CPU: 1 PID: 2925 Comm: rsyslogd Not tainted 4.14.0-rc8+ #79 [ 169.560453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.569778] Call Trace: [ 169.572342] dump_stack+0x194/0x257 [ 169.575944] ? arch_local_irq_restore+0x53/0x53 [ 169.580597] dump_header+0x234/0xa0e [ 169.584288] ? check_noncircular+0x20/0x20 [ 169.588492] ? task_will_free_mem+0x252/0xaa0 [ 169.592961] ? pagefault_out_of_memory+0x152/0x152 [ 169.597873] ? ___ratelimit+0x30d/0x630 [ 169.601820] ? lock_downgrade+0x990/0x990 [ 169.605955] ? lock_release+0xa40/0xa40 [ 169.609906] ? mark_held_locks+0xaf/0x100 [ 169.614032] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 169.619109] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 169.624095] ? trace_hardirqs_on+0xd/0x10 [ 169.628217] ? ___ratelimit+0x95/0x630 [ 169.632079] ? idr_get_free_cmn+0xfd0/0xfd0 [ 169.636386] oom_kill_process+0x86d/0x13d0 [ 169.640588] ? lock_release+0xa40/0xa40 [ 169.644528] ? lock_release+0xa40/0xa40 [ 169.648475] ? do_raw_spin_trylock+0x190/0x190 [ 169.653039] ? oom_evaluate_task+0x480/0x480 [ 169.657420] ? find_lock_task_mm+0x23b/0x460 [ 169.661802] ? task_will_free_mem+0xaa0/0xaa0 [ 169.666268] ? has_capability+0x30/0x30 [ 169.670211] ? do_raw_spin_trylock+0x190/0x190 [ 169.674769] ? find_held_lock+0x35/0x1d0 [ 169.678802] ? check_noncircular+0x20/0x20 [ 169.683013] ? oom_badness+0xdf/0xb80 [ 169.686788] ? lock_downgrade+0x990/0x990 [ 169.690909] ? find_lock_task_mm+0x460/0x460 [ 169.695286] ? lock_release+0xa40/0xa40 [ 169.699241] ? find_held_lock+0x35/0x1d0 [ 169.703279] ? out_of_memory+0xaa9/0x11d0 [ 169.707400] ? lock_downgrade+0x990/0x990 [ 169.711522] ? lock_release+0xa40/0xa40 [ 169.715469] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 169.720465] ? oom_evaluate_task+0x284/0x480 [ 169.724853] out_of_memory+0x7dc/0x11d0 [ 169.728806] ? oom_killer_disable+0x310/0x310 [ 169.733271] ? mutex_trylock+0x23a/0x2d0 [ 169.737303] ? __lock_is_held+0xb6/0x140 [ 169.741347] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 169.746783] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 169.751605] ? __radix_tree_insert+0x7b0/0x7b0 [ 169.756177] ? warn_alloc+0x2f0/0x2f0 [ 169.759953] ? find_get_entry+0x513/0x9e0 [ 169.764073] ? lock_downgrade+0x990/0x990 [ 169.768200] ? radix_tree_lookup_slot+0x99/0xe0 [ 169.772857] ? find_get_entry+0x53c/0x9e0 [ 169.776979] ? check_noncircular+0x20/0x20 [ 169.781200] ? __lock_acquire+0x664/0x3df0 [ 169.785420] ? __lock_is_held+0xb6/0x140 [ 169.789469] ? check_same_owner+0x320/0x320 [ 169.793761] ? __page_cache_alloc+0x12d/0x500 [ 169.798235] ? __might_sleep+0x95/0x190 [ 169.802184] __alloc_pages_nodemask+0x9fb/0xd80 [ 169.806833] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 169.811825] ? add_to_page_cache_lru+0x510/0x510 [ 169.816562] ? check_noncircular+0x20/0x20 [ 169.820765] ? check_noncircular+0x20/0x20 [ 169.824977] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 169.829720] alloc_pages_current+0xb6/0x1e0 [ 169.834020] __page_cache_alloc+0x334/0x500 [ 169.838315] ? rcu_read_lock_held+0xa9/0xc0 [ 169.842611] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 169.849955] filemap_fault+0xf32/0x1d30 [ 169.853914] ? __lock_page_or_retry+0x4f0/0x4f0 [ 169.858561] ? filemap_map_pages+0x942/0x15d0 [ 169.863042] ? find_get_entries_tag+0xeb0/0xeb0 [ 169.867683] ? lock_downgrade+0x990/0x990 [ 169.871806] ? check_noncircular+0x20/0x20 [ 169.876016] ? find_held_lock+0x35/0x1d0 [ 169.880050] ? print_irqtrace_events+0x270/0x270 [ 169.884774] ? print_irqtrace_events+0x270/0x270 [ 169.889499] ? print_irqtrace_events+0x270/0x270 [ 169.894226] ? is_bpf_text_address+0x7b/0x120 [ 169.898705] ? lock_acquire+0x1d5/0x580 [ 169.902649] ? lock_acquire+0x1d5/0x580 [ 169.906593] ? ext4_filemap_fault+0x7a/0xb0 [ 169.910887] ? __lock_acquire+0x664/0x3df0 [ 169.915093] ? lock_release+0xa40/0xa40 [ 169.919039] ? check_same_owner+0x320/0x320 [ 169.923341] ? __might_sleep+0x95/0x190 [ 169.927289] ? down_read+0x96/0x150 [ 169.930883] ? ext4_filemap_fault+0x7a/0xb0 [ 169.935175] ? __down_interruptible+0x6b0/0x6b0 [ 169.939830] ext4_filemap_fault+0x82/0xb0 [ 169.943950] __do_fault+0xeb/0x30f [ 169.947459] ? __vfs_read+0xef/0xa00 [ 169.951238] ? pte_offset_kernel+0xc7/0xc7 [ 169.955446] ? do_raw_spin_trylock+0x190/0x190 [ 169.959999] ? check_noncircular+0x20/0x20 [ 169.964209] ? check_noncircular+0x20/0x20 [ 169.968421] __handle_mm_fault+0x1c7a/0x3ad0 [ 169.972806] ? __pmd_alloc+0x4e0/0x4e0 [ 169.976674] ? find_held_lock+0x35/0x1d0 [ 169.980714] ? handle_mm_fault+0x248/0x8d0 [ 169.984920] ? lock_downgrade+0x990/0x990 [ 169.989065] handle_mm_fault+0x334/0x8d0 [ 169.993107] ? down_read_trylock+0xdb/0x170 [ 169.997399] ? __do_page_fault+0x32d/0xc90 [ 170.001605] ? __handle_mm_fault+0x3ad0/0x3ad0 [ 170.006163] ? vmacache_find+0x5f/0x280 [ 170.010115] ? find_vma+0x30/0x150 [ 170.013629] __do_page_fault+0x5c9/0xc90 [ 170.017661] ? vfs_copy_file_range+0x940/0x940 [ 170.022221] ? mm_fault_error+0x2c0/0x2c0 [ 170.026341] ? __fsnotify_parent+0xb4/0x3a0 [ 170.030631] ? avc_policy_seqno+0x9/0x20 [ 170.034665] ? fsnotify+0x1af0/0x1af0 [ 170.038439] do_page_fault+0xee/0x720 [ 170.042212] ? __do_page_fault+0xc90/0xc90 [ 170.046415] ? __fdget_raw+0x20/0x20 [ 170.050107] ? fput+0xd2/0x140 [ 170.053271] ? SyS_read+0x184/0x220 [ 170.056868] ? retint_user+0x18/0x20 [ 170.060559] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 170.065381] page_fault+0x22/0x30 [ 170.068805] RIP: 0033:0x43fc00 [ 170.071975] RSP: 002b:00007ffb60dc7d00 EFLAGS: 00010202 [ 170.077309] RAX: 00007ffb60dc7d10 RBX: 0000000000c16f98 RCX: 0000000000000008 [ 170.084548] RDX: 000000000000000a RSI: 000000000000000a RDI: 0000000000000001 [ 170.091786] RBP: 0000000000c16f90 R08: 0000000000000000 R09: 00000000000007e1 [ 170.099027] R10: 0000000000000010 R11: a3d70a3d70a3d70b R12: 0000000000000000 [ 170.106267] R13: 00007ffb625fd5a3 R14: 0000000000000f4a R15: 00007ffb625fc5d3 [ 170.113586] Mem-Info: [ 170.160093] active_anon:1373 inactive_anon:32 isolated_anon:0 [ 170.160093] active_file:19 inactive_file:35 isolated_file:0 [ 170.160093] unevictable:0 dirty:0 writeback:0 unstable:0 [ 170.160093] slab_reclaimable:5925 slab_unreclaimable:82545 [ 170.160093] mapped:19 shmem:39 pagetables:1641 bounce:0 [ 170.160093] free:24449 free_pcp:58 free_cma:0 [ 170.213899] Node 0 active_anon:5492kB inactive_anon:128kB active_file:136kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:176kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 170.241898] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 170.269368] lowmem_reserve[]: 0 2884 6397 6397 [ 170.274179] Node 0 DMA32 free:44456kB min:30396kB low:37992kB high:45588kB active_anon:212kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:232kB local_pcp:100kB free_cma:0kB [ 170.335400] lowmem_reserve[]: 0 0 3513 3513 [ 170.339797] Node 0 Normal free:36936kB min:37020kB low:46272kB high:55524kB active_anon:5280kB inactive_anon:128kB active_file:152kB inactive_file:108kB unevictable:0kB writepending:8kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8992kB pagetables:5236kB bounce:0kB free_pcp:452kB local_pcp:0kB free_cma:0kB [ 170.368637] lowmem_reserve[]: 0 0 0 0 [ 170.372477] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 170.386132] Node 0 DMA32: 0*4kB 2*8kB (UE) 15*16kB (M) 8*32kB (ME) 5*64kB (ME) 3*128kB (UME) 4*256kB (UME) 5*512kB (ME) 2*1024kB (ME) 2*2048kB (ME) 8*4096kB (M) = 43712kB [ 170.401522] Node 0 Normal: 493*4kB (UMEH) 414*8kB (UMEH) 296*16kB (UME) 184*32kB (UMEH) 114*64kB (UMH) 49*128kB (UM) 17*256kB (UME) 3*512kB (ME) 2*1024kB (UM) 0*2048kB 0*4096kB = 37412kB [ 170.418303] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 170.426876] 93 total pagecache pages [ 170.430574] 0 pages in swap cache [ 170.434018] Swap cache stats: add 0, delete 0, find 0/0 [ 170.439363] Free swap = 0kB [ 170.442373] Total swap = 0kB [ 170.445389] 1965979 pages RAM [ 170.448493] 0 pages HighMem/MovableOnly [ 170.503041] 323593 pages reserved [ 170.506712] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 170.520257] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 170.529115] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 170.537880] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 170.546645] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 170.555664] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 170.564356] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 170.573038] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 170.581840] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 170.590610] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 170.599361] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 170.608111] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 170.616863] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 170.625621] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 170.634408] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 170.643090] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 170.652714] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 170.662336] [ 3038] 0 3038 356781 190 177 3 0 0 syzkaller525833 [ 170.671956] [ 3040] 0 3040 524799 0 259 4 0 0 syzkaller525833 [ 170.681578] [ 3042] 0 3042 405957 0 201 3 0 0 syzkaller525833 [ 170.691230] [ 3047] 0 3047 532995 0 263 4 0 0 syzkaller525833 [ 170.700898] [ 3050] 0 3050 395712 0 196 3 0 0 syzkaller525833 [ 170.710552] Out of memory: Kill process 3038 (syzkaller525833) score 0 or sacrifice child [ 170.719217] Killed process 3038 (syzkaller525833) total-vm:1427124kB, anon-rss:756kB, file-rss:4kB, shmem-rss:0kB [ 170.738479] oom_reaper: reaped process 3038 (syzkaller525833), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 170.880657] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 170.893859] kworker/0:2 cpuset=/ mems_allowed=0 [ 170.898557] CPU: 0 PID: 1364 Comm: kworker/0:2 Not tainted 4.14.0-rc8+ #79 [ 170.905547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.914899] Workqueue: events pcpu_balance_workfn [ 170.919715] Call Trace: [ 170.922285] dump_stack+0x194/0x257 [ 170.925887] ? arch_local_irq_restore+0x53/0x53 [ 170.930548] dump_header+0x234/0xa0e [ 170.934239] ? check_noncircular+0x20/0x20 [ 170.938441] ? task_will_free_mem+0x252/0xaa0 [ 170.942910] ? pagefault_out_of_memory+0x152/0x152 [ 170.947815] ? ___ratelimit+0x30d/0x630 [ 170.951759] ? lock_downgrade+0x990/0x990 [ 170.955880] ? lock_release+0xa40/0xa40 [ 170.959827] ? mark_held_locks+0xaf/0x100 [ 170.963948] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 170.969027] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 170.974020] ? trace_hardirqs_on+0xd/0x10 [ 170.978141] ? ___ratelimit+0x95/0x630 [ 170.982000] ? idr_get_free_cmn+0xfd0/0xfd0 [ 170.986300] oom_kill_process+0x86d/0x13d0 [ 170.990503] ? lock_release+0xa40/0xa40 [ 170.994443] ? lock_release+0xa40/0xa40 [ 170.998390] ? do_raw_spin_trylock+0x190/0x190 [ 171.002947] ? oom_evaluate_task+0x480/0x480 [ 171.007336] ? find_lock_task_mm+0x23b/0x460 [ 171.011724] ? task_will_free_mem+0xaa0/0xaa0 [ 171.016189] ? has_capability+0x30/0x30 [ 171.020130] ? do_raw_spin_trylock+0x190/0x190 [ 171.024684] ? find_held_lock+0x35/0x1d0 [ 171.028716] ? check_noncircular+0x20/0x20 [ 171.032918] ? oom_badness+0xdf/0xb80 [ 171.036685] ? lock_downgrade+0x990/0x990 [ 171.040800] ? find_lock_task_mm+0x460/0x460 [ 171.045174] ? lock_release+0xa40/0xa40 [ 171.049126] ? find_held_lock+0x35/0x1d0 [ 171.053170] ? out_of_memory+0xaa9/0x11d0 [ 171.057285] ? lock_downgrade+0x990/0x990 [ 171.061404] ? lock_release+0xa40/0xa40 [ 171.065345] ? lock_acquire+0x1d5/0x580 [ 171.069288] ? blocking_notifier_call_chain+0x112/0x190 [ 171.074617] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 171.079614] ? oom_evaluate_task+0x284/0x480 [ 171.083991] out_of_memory+0x7dc/0x11d0 [ 171.087951] ? oom_killer_disable+0x310/0x310 [ 171.092412] ? mutex_trylock+0x23a/0x2d0 [ 171.096443] ? __lock_is_held+0xb6/0x140 [ 171.100473] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 171.105903] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 171.110749] ? warn_alloc+0x2f0/0x2f0 [ 171.114522] ? check_noncircular+0x20/0x20 [ 171.118723] ? __lock_is_held+0xb6/0x140 [ 171.122756] ? print_irqtrace_events+0x270/0x270 [ 171.127491] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 171.132647] ? lock_pin_lock+0x360/0x360 [ 171.136680] ? lock_acquire+0x1d5/0x580 [ 171.140622] ? lock_acquire+0x1d5/0x580 [ 171.144564] ? check_noncircular+0x20/0x20 [ 171.148767] ? __lock_acquire+0x664/0x3df0 [ 171.152972] ? check_same_owner+0x320/0x320 [ 171.157280] ? __lock_is_held+0xb6/0x140 [ 171.161320] ? check_same_owner+0x320/0x320 [ 171.165609] ? print_irqtrace_events+0x270/0x270 [ 171.170337] ? __might_sleep+0x95/0x190 [ 171.174283] __alloc_pages_nodemask+0x9fb/0xd80 [ 171.178924] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 171.183906] ? __lock_acquire+0x664/0x3df0 [ 171.188108] ? dequeue_task_fair+0x147d/0x39e0 [ 171.192655] ? print_irqtrace_events+0x270/0x270 [ 171.197381] ? __might_sleep+0x95/0x190 [ 171.201329] ? print_irqtrace_events+0x270/0x270 [ 171.206058] ? __lock_is_held+0xb6/0x140 [ 171.210094] ? find_next_bit+0x27/0x30 [ 171.213953] pcpu_populate_chunk+0x1b3/0x880 [ 171.218341] pcpu_balance_workfn+0xf3e/0x1520 [ 171.222806] ? check_noncircular+0x20/0x20 [ 171.227014] ? check_noncircular+0x20/0x20 [ 171.231231] ? pcpu_create_chunk+0x900/0x900 [ 171.235614] ? check_noncircular+0x20/0x20 [ 171.239822] ? lock_acquire+0x1d5/0x580 [ 171.243762] ? lock_acquire+0x1d5/0x580 [ 171.247702] ? process_one_work+0xb32/0x1bc0 [ 171.252097] ? __lock_is_held+0xb6/0x140 [ 171.256137] process_one_work+0xbf0/0x1bc0 [ 171.260338] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 171.265505] ? pwq_dec_nr_in_flight+0x450/0x450 [ 171.270145] ? preempt_notifier_dec+0x20/0x20 [ 171.274616] ? __schedule+0x8f3/0x2060 [ 171.278479] ? check_noncircular+0x20/0x20 [ 171.282703] ? check_noncircular+0x20/0x20 [ 171.286905] ? check_noncircular+0x20/0x20 [ 171.291123] ? lock_acquire+0x1d5/0x580 [ 171.295063] ? lock_acquire+0x1d5/0x580 [ 171.299006] ? worker_thread+0x4a3/0x1990 [ 171.303127] ? lock_downgrade+0x990/0x990 [ 171.307247] ? lock_release+0xa40/0xa40 [ 171.311188] ? worker_pool_assign_id+0x1b0/0x1b0 [ 171.315915] ? do_raw_spin_trylock+0x190/0x190 [ 171.320477] worker_thread+0x223/0x1990 [ 171.324436] ? process_one_work+0x1bc0/0x1bc0 [ 171.328910] ? _raw_spin_unlock_irq+0x27/0x70 [ 171.333375] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 171.338368] ? trace_hardirqs_on+0xd/0x10 [ 171.342482] ? _raw_spin_unlock_irq+0x27/0x70 [ 171.346953] ? finish_task_switch+0x1d3/0x740 [ 171.351412] ? finish_task_switch+0x1aa/0x740 [ 171.355879] ? preempt_notifier_dec+0x20/0x20 [ 171.360357] ? __schedule+0x8f3/0x2060 [ 171.364231] ? find_held_lock+0x35/0x1d0 [ 171.368266] ? find_held_lock+0x35/0x1d0 [ 171.372300] ? complete+0x62/0x80 [ 171.375736] ? __schedule+0x2060/0x2060 [ 171.379678] ? do_wait_intr+0x3e0/0x3e0 [ 171.383618] ? __lockdep_init_map+0xe4/0x650 [ 171.387994] ? do_raw_spin_trylock+0x190/0x190 [ 171.392544] ? lockdep_init_map+0x9/0x10 [ 171.396571] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 171.401642] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 171.406627] ? trace_hardirqs_on+0xd/0x10 [ 171.410745] ? __kthread_parkme+0x175/0x240 [ 171.415046] kthread+0x35e/0x430 [ 171.418392] ? process_one_work+0x1bc0/0x1bc0 [ 171.422853] ? kthread_create_on_node+0x100/0x100 [ 171.427665] ret_from_fork+0x2a/0x40 [ 171.431446] Mem-Info: [ 171.433878] active_anon:1186 inactive_anon:32 isolated_anon:0 [ 171.433878] active_file:18 inactive_file:14 isolated_file:0 [ 171.433878] unevictable:0 dirty:0 writeback:0 unstable:0 [ 171.433878] slab_reclaimable:5930 slab_unreclaimable:82547 [ 171.433878] mapped:3 shmem:39 pagetables:1641 bounce:0 [ 171.433878] free:24322 free_pcp:179 free_cma:0 [ 171.466073] Node 0 active_anon:4744kB inactive_anon:128kB active_file:72kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 171.492606] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 171.518727] lowmem_reserve[]: 0 2884 6397 6397 [ 171.523322] Node 0 DMA32 free:44396kB min:30396kB low:37992kB high:45588kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 171.551044] lowmem_reserve[]: 0 0 3513 3513 [ 171.555397] Node 0 Normal free:36984kB min:37020kB low:46272kB high:55524kB active_anon:4744kB inactive_anon:128kB active_file:72kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8992kB pagetables:5236kB bounce:0kB free_pcp:716kB local_pcp:592kB free_cma:0kB [ 171.584130] lowmem_reserve[]: 0 0 0 0 [ 171.587936] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 171.601525] Node 0 DMA32: 3*4kB (UM) 4*8kB (UME) 2*16kB (M) 5*32kB (UME) 4*64kB (UME) 5*128kB (UME) 5*256kB (UME) 4*512kB (ME) 3*1024kB (ME) 2*2048kB (ME) 8*4096kB (M) = 44396kB [ 171.618021] Node 0 Normal: 330*4kB (UMH) 344*8kB (UMH) 261*16kB (UME) 162*32kB (UMEH) 100*64kB (MH) 48*128kB (M) 19*256kB (ME) 4*512kB (ME) 4*1024kB (UM) 0*2048kB 0*4096kB = 36984kB [ 171.634383] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 171.642949] 71 total pagecache pages [ 171.646652] 0 pages in swap cache [ 171.650091] Swap cache stats: add 0, delete 0, find 0/0 [ 171.655453] Free swap = 0kB [ 171.658461] Total swap = 0kB [ 171.661473] 1965979 pages RAM [ 171.664567] 0 pages HighMem/MovableOnly [ 171.668524] 323593 pages reserved [ 171.671958] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 171.680638] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 171.689395] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 171.698148] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 171.706905] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 171.715921] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 171.724591] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 171.733266] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 171.742035] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 171.750797] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 171.759552] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 171.768316] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 171.777075] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 171.785819] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 171.794560] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 171.803232] [ 3036] 0 3036 255 1 4 2 0 0 syzkaller525833 [ 171.812848] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 171.822465] [ 3038] 0 3038 356781 0 177 3 0 0 syzkaller525833 [ 171.832087] [ 3040] 0 3040 524799 0 259 4 0 0 syzkaller525833 [ 171.841699] [ 3042] 0 3042 405957 0 201 3 0 0 syzkaller525833 [ 171.851336] [ 3047] 0 3047 532995 0 263 4 0 0 syzkaller525833 [ 171.860956] [ 3050] 0 3050 395712 0 196 3 0 0 syzkaller525833 [ 171.870566] Out of memory: Kill process 3034 (sshd) score 0 or sacrifice child [ 171.877995] Killed process 3036 (syzkaller525833) total-vm:1020kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 171.890633] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 171.903909] kworker/0:2 cpuset=/ mems_allowed=0 [ 171.908637] CPU: 0 PID: 1364 Comm: kworker/0:2 Not tainted 4.14.0-rc8+ #79 [ 171.915632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 171.924964] Workqueue: events pcpu_balance_workfn [ 171.929772] Call Trace: [ 171.932329] dump_stack+0x194/0x257 [ 171.935928] ? arch_local_irq_restore+0x53/0x53 [ 171.940575] dump_header+0x234/0xa0e [ 171.944269] ? check_noncircular+0x20/0x20 [ 171.948470] ? task_will_free_mem+0x252/0xaa0 [ 171.952936] ? pagefault_out_of_memory+0x152/0x152 [ 171.957847] ? ___ratelimit+0x30d/0x630 [ 171.961788] ? lock_downgrade+0x990/0x990 [ 171.965914] ? lock_release+0xa40/0xa40 [ 171.969865] ? mark_held_locks+0xaf/0x100 [ 171.973981] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 171.979051] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 171.984044] ? trace_hardirqs_on+0xd/0x10 [ 171.988218] ? ___ratelimit+0x95/0x630 [ 171.992073] ? idr_get_free_cmn+0xfd0/0xfd0 [ 171.996374] oom_kill_process+0x86d/0x13d0 [ 172.000574] ? lock_release+0xa40/0xa40 [ 172.004513] ? lock_release+0xa40/0xa40 [ 172.008456] ? do_raw_spin_trylock+0x190/0x190 [ 172.013012] ? oom_evaluate_task+0x480/0x480 [ 172.017389] ? find_lock_task_mm+0x23b/0x460 [ 172.021766] ? task_will_free_mem+0xaa0/0xaa0 [ 172.026231] ? has_capability+0x30/0x30 [ 172.030171] ? do_raw_spin_trylock+0x190/0x190 [ 172.034729] ? find_held_lock+0x35/0x1d0 [ 172.038760] ? check_noncircular+0x20/0x20 [ 172.042962] ? oom_badness+0xdf/0xb80 [ 172.046729] ? lock_downgrade+0x990/0x990 [ 172.050844] ? find_lock_task_mm+0x460/0x460 [ 172.055217] ? lock_release+0xa40/0xa40 [ 172.059169] ? find_held_lock+0x35/0x1d0 [ 172.063203] ? out_of_memory+0xaa9/0x11d0 [ 172.067318] ? lock_downgrade+0x990/0x990 [ 172.071435] ? lock_release+0xa40/0xa40 [ 172.075374] ? lock_acquire+0x1d5/0x580 [ 172.079314] ? blocking_notifier_call_chain+0x112/0x190 [ 172.084753] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 172.089741] ? oom_evaluate_task+0x284/0x480 [ 172.094132] out_of_memory+0x7dc/0x11d0 [ 172.098081] ? oom_killer_disable+0x310/0x310 [ 172.102541] ? mutex_trylock+0x23a/0x2d0 [ 172.106570] ? __lock_is_held+0xb6/0x140 [ 172.110597] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 172.116023] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 172.120865] ? warn_alloc+0x2f0/0x2f0 [ 172.124645] ? check_noncircular+0x20/0x20 [ 172.128846] ? __lock_is_held+0xb6/0x140 [ 172.132878] ? print_irqtrace_events+0x270/0x270 [ 172.137604] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 172.142760] ? lock_pin_lock+0x360/0x360 [ 172.146805] ? lock_acquire+0x1d5/0x580 [ 172.150753] ? lock_acquire+0x1d5/0x580 [ 172.154697] ? check_noncircular+0x20/0x20 [ 172.158897] ? __lock_acquire+0x664/0x3df0 [ 172.163112] ? check_same_owner+0x320/0x320 [ 172.167417] ? __lock_is_held+0xb6/0x140 [ 172.171456] ? check_same_owner+0x320/0x320 [ 172.175743] ? __lock_is_held+0xb6/0x140 [ 172.179775] ? __might_sleep+0x95/0x190 [ 172.183721] __alloc_pages_nodemask+0x9fb/0xd80 [ 172.188362] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 172.193344] ? __lock_acquire+0x664/0x3df0 [ 172.197543] ? dequeue_task_fair+0x147d/0x39e0 [ 172.202098] ? print_irqtrace_events+0x270/0x270 [ 172.206828] ? __might_sleep+0x95/0x190 [ 172.210773] ? print_irqtrace_events+0x270/0x270 [ 172.215499] ? __lock_is_held+0xb6/0x140 [ 172.219532] ? find_next_bit+0x27/0x30 [ 172.223389] pcpu_populate_chunk+0x1b3/0x880 [ 172.227776] pcpu_balance_workfn+0xf3e/0x1520 [ 172.232239] ? check_noncircular+0x20/0x20 [ 172.236441] ? check_noncircular+0x20/0x20 [ 172.240651] ? pcpu_create_chunk+0x900/0x900 [ 172.245031] ? check_noncircular+0x20/0x20 [ 172.249240] ? lock_acquire+0x1d5/0x580 [ 172.253181] ? lock_acquire+0x1d5/0x580 [ 172.257120] ? process_one_work+0xb32/0x1bc0 [ 172.261504] ? __lock_is_held+0xb6/0x140 [ 172.265542] process_one_work+0xbf0/0x1bc0 [ 172.269743] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 172.274918] ? pwq_dec_nr_in_flight+0x450/0x450 [ 172.279557] ? preempt_notifier_dec+0x20/0x20 [ 172.284028] ? __schedule+0x8f3/0x2060 [ 172.287891] ? check_noncircular+0x20/0x20 [ 172.292100] ? check_noncircular+0x20/0x20 [ 172.296300] ? check_noncircular+0x20/0x20 [ 172.300516] ? lock_acquire+0x1d5/0x580 [ 172.304456] ? lock_acquire+0x1d5/0x580 [ 172.308395] ? worker_thread+0x4a3/0x1990 [ 172.312516] ? lock_downgrade+0x990/0x990 [ 172.316632] ? lock_release+0xa40/0xa40 [ 172.320574] ? worker_pool_assign_id+0x1b0/0x1b0 [ 172.325300] ? do_raw_spin_trylock+0x190/0x190 [ 172.329859] worker_thread+0x223/0x1990 [ 172.333816] ? process_one_work+0x1bc0/0x1bc0 [ 172.338284] ? _raw_spin_unlock_irq+0x27/0x70 [ 172.342746] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 172.347728] ? trace_hardirqs_on+0xd/0x10 [ 172.351841] ? _raw_spin_unlock_irq+0x27/0x70 [ 172.356303] ? finish_task_switch+0x1d3/0x740 [ 172.360764] ? finish_task_switch+0x1aa/0x740 [ 172.365239] ? preempt_notifier_dec+0x20/0x20 [ 172.369709] ? __schedule+0x8f3/0x2060 [ 172.373603] ? find_held_lock+0x35/0x1d0 [ 172.377645] ? find_held_lock+0x35/0x1d0 [ 172.381680] ? complete+0x62/0x80 [ 172.385111] ? __schedule+0x2060/0x2060 [ 172.389049] ? do_wait_intr+0x3e0/0x3e0 [ 172.392987] ? __lockdep_init_map+0xe4/0x650 [ 172.397362] ? do_raw_spin_trylock+0x190/0x190 [ 172.401920] ? lockdep_init_map+0x9/0x10 [ 172.405947] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 172.411019] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 172.415999] ? trace_hardirqs_on+0xd/0x10 [ 172.420114] ? __kthread_parkme+0x175/0x240 [ 172.424407] kthread+0x35e/0x430 [ 172.427743] ? process_one_work+0x1bc0/0x1bc0 [ 172.432214] ? kthread_create_on_node+0x100/0x100 [ 172.437027] ret_from_fork+0x2a/0x40 [ 172.440998] Mem-Info: [ 172.443672] active_anon:1176 inactive_anon:32 isolated_anon:0 [ 172.443672] active_file:30 inactive_file:18 isolated_file:31 [ 172.443672] unevictable:0 dirty:0 writeback:0 unstable:0 [ 172.443672] slab_reclaimable:5931 slab_unreclaimable:82548 [ 172.443672] mapped:2 shmem:39 pagetables:1637 bounce:0 [ 172.443672] free:24366 free_pcp:112 free_cma:0 [ 172.476169] Node 0 active_anon:4704kB inactive_anon:128kB active_file:92kB inactive_file:232kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 172.502728] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 172.528993] lowmem_reserve[]: 0 2884 6397 6397 [ 172.533642] Node 0 DMA32 free:44396kB min:30396kB low:37992kB high:45588kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 172.561330] lowmem_reserve[]: 0 0 3513 3513 [ 172.565761] Node 0 Normal free:36780kB min:37020kB low:46272kB high:55524kB active_anon:4704kB inactive_anon:128kB active_file:84kB inactive_file:20kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8960kB pagetables:5220kB bounce:0kB free_pcp:936kB local_pcp:240kB free_cma:0kB [ 172.594513] lowmem_reserve[]: 0 0 0 0 [ 172.598338] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 172.611928] Node 0 DMA32: 3*4kB (UM) 4*8kB (UME) 2*16kB (M) 5*32kB (UME) 4*64kB (UME) 5*128kB (UME) 5*256kB (UME) 4*512kB (ME) 3*1024kB (ME) 2*2048kB (ME) 8*4096kB (M) = 44396kB [ 172.627958] Node 0 Normal: 327*4kB (MH) 343*8kB (UMEH) 255*16kB (MEH) 161*32kB (UMH) 99*64kB (MH) 50*128kB (UM) 20*256kB (UME) 5*512kB (UME) 3*1024kB (M) 0*2048kB 0*4096kB = 36772kB [ 172.644368] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 172.652941] 65 total pagecache pages [ 172.656647] 0 pages in swap cache [ 172.660100] Swap cache stats: add 0, delete 0, find 0/0 [ 172.665448] Free swap = 0kB [ 172.668454] Total swap = 0kB [ 172.671456] 1965979 pages RAM [ 172.674543] 0 pages HighMem/MovableOnly [ 172.678501] 323593 pages reserved [ 172.681936] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 172.690607] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 172.699355] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 172.708115] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 172.716867] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 172.725895] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 172.734571] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 172.743237] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 172.751986] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 172.760739] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 172.769506] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 172.778269] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 172.787042] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 172.795812] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 172.804571] [ 3034] 0 3034 17821 196 40 3 0 0 sshd [ 172.813233] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 172.822847] [ 3038] 0 3038 356781 0 177 3 0 0 syzkaller525833 [ 172.832462] [ 3040] 0 3040 524799 0 259 4 0 0 syzkaller525833 [ 172.842083] [ 3042] 0 3042 405957 0 201 3 0 0 syzkaller525833 [ 172.851699] [ 3047] 0 3047 532995 0 263 4 0 0 syzkaller525833 [ 172.861334] [ 3050] 0 3050 395712 0 196 3 0 0 syzkaller525833 [ 172.870948] Out of memory: Kill process 3034 (sshd) score 0 or sacrifice child [ 172.878319] Killed process 3034 (sshd) total-vm:71284kB, anon-rss:780kB, file-rss:0kB, shmem-rss:4kB [ 172.952867] sshd invoked oom-killer: gfp_mask=0x16142c0(GFP_KERNEL|__GFP_NOWARN|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 172.968194] sshd cpuset=/ mems_allowed=0 [ 172.972398] CPU: 0 PID: 3034 Comm: sshd Not tainted 4.14.0-rc8+ #79 [ 172.978780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 172.988103] Call Trace: [ 172.990679] dump_stack+0x194/0x257 [ 172.994281] ? arch_local_irq_restore+0x53/0x53 [ 172.998933] dump_header+0x234/0xa0e [ 173.002619] ? check_noncircular+0x20/0x20 [ 173.006821] ? task_will_free_mem+0x252/0xaa0 [ 173.011289] ? pagefault_out_of_memory+0x152/0x152 [ 173.016194] ? ___ratelimit+0x30d/0x630 [ 173.020139] ? lock_downgrade+0x990/0x990 [ 173.024269] ? lock_release+0xa40/0xa40 [ 173.028215] ? mark_held_locks+0xaf/0x100 [ 173.032334] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 173.037408] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 173.042391] ? trace_hardirqs_on+0xd/0x10 [ 173.046509] ? ___ratelimit+0x95/0x630 [ 173.050366] ? idr_get_free_cmn+0xfd0/0xfd0 [ 173.054654] ? find_held_lock+0x35/0x1d0 [ 173.058711] oom_kill_process+0x86d/0x13d0 [ 173.062926] ? lock_downgrade+0x990/0x990 [ 173.067062] ? lock_release+0xa40/0xa40 [ 173.071025] ? check_noncircular+0x20/0x20 [ 173.075251] ? oom_evaluate_task+0x480/0x480 [ 173.079646] ? security_capable_noaudit+0x8b/0xc0 [ 173.084477] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 173.089563] ? has_capability+0x30/0x30 [ 173.093516] ? do_raw_spin_trylock+0x190/0x190 [ 173.098087] ? find_held_lock+0x35/0x1d0 [ 173.102135] ? check_noncircular+0x20/0x20 [ 173.106354] ? oom_unkillable_task+0x394/0x4c0 [ 173.110917] ? lock_downgrade+0x990/0x990 [ 173.115054] ? lock_release+0xa40/0xa40 [ 173.119020] ? cpumask_next+0x24/0x30 [ 173.122810] ? find_held_lock+0x35/0x1d0 [ 173.126867] ? out_of_memory+0xaa9/0x11d0 [ 173.130997] ? lock_downgrade+0x990/0x990 [ 173.135133] ? lock_release+0xa40/0xa40 [ 173.139087] ? lock_acquire+0x1d5/0x580 [ 173.143048] ? blocking_notifier_call_chain+0x112/0x190 [ 173.148395] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 173.153406] ? oom_evaluate_task+0x284/0x480 [ 173.157803] out_of_memory+0x7dc/0x11d0 [ 173.161795] ? oom_killer_disable+0x310/0x310 [ 173.166269] ? mutex_trylock+0x23a/0x2d0 [ 173.170313] ? __lock_is_held+0xb6/0x140 [ 173.174355] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 173.179803] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 173.184674] ? warn_alloc+0x2f0/0x2f0 [ 173.188465] ? warn_alloc+0x2f0/0x2f0 [ 173.192253] ? __lock_acquire+0x664/0x3df0 [ 173.196473] ? print_irqtrace_events+0x270/0x270 [ 173.201218] ? print_irqtrace_events+0x270/0x270 [ 173.205972] ? check_noncircular+0x20/0x20 [ 173.210191] ? check_noncircular+0x20/0x20 [ 173.214411] ? __lock_acquire+0x664/0x3df0 [ 173.218636] ? should_fail+0x23b/0xa40 [ 173.222509] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 173.227619] ? __lock_is_held+0xb6/0x140 [ 173.231685] ? check_same_owner+0x320/0x320 [ 173.235986] ? lock_downgrade+0x990/0x990 [ 173.240129] ? __might_sleep+0x95/0x190 [ 173.244094] __alloc_pages_nodemask+0x9fb/0xd80 [ 173.248757] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 173.253753] ? __alloc_pages_nodemask+0xadb/0xd80 [ 173.258576] ? print_irqtrace_events+0x270/0x270 [ 173.263316] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 173.268349] ? cache_grow_begin+0x31b/0x400 [ 173.272663] cache_grow_begin+0x86/0x400 [ 173.276714] fallback_alloc+0x13b/0x2a0 [ 173.280680] ____cache_alloc_node+0x1cc/0x1e0 [ 173.285166] kmem_cache_alloc_node_trace+0xe9/0x750 [ 173.290192] __kmalloc_node_track_caller+0x33/0x70 [ 173.295104] __kmalloc_reserve.isra.40+0x41/0xd0 [ 173.299835] __alloc_skb+0x13b/0x740 [ 173.303524] ? skb_copy_and_csum_dev+0x360/0x360 [ 173.308262] ? find_held_lock+0x35/0x1d0 [ 173.312313] ? print_irqtrace_events+0x270/0x270 [ 173.317053] ? lock_acquire+0x1d5/0x580 [ 173.320998] ? lock_acquire+0x1d5/0x580 [ 173.324943] ? tcp_close+0x27/0xfc0 [ 173.328558] tcp_send_fin+0x257/0xd40 [ 173.332352] ? sk_forced_mem_schedule+0x150/0x150 [ 173.337171] ? tcp_set_state+0x1a2/0x470 [ 173.341205] ? tcp_read_sock+0x840/0x840 [ 173.345239] ? __lock_sock+0x2e4/0x2f0 [ 173.349099] ? trace_hardirqs_on+0xd/0x10 [ 173.353217] ? __local_bh_enable_ip+0x9d/0x160 [ 173.357773] tcp_close+0xbd9/0xfc0 [ 173.361297] ? ip_mc_drop_socket+0x1ce/0x230 [ 173.365681] inet_release+0xed/0x1c0 [ 173.369369] sock_release+0x8d/0x1e0 [ 173.373053] ? sock_release+0x1e0/0x1e0 [ 173.376999] sock_close+0x16/0x20 [ 173.380430] __fput+0x327/0x7e0 [ 173.383691] ? fput+0x140/0x140 [ 173.386941] ? check_same_owner+0x320/0x320 [ 173.391233] ? _raw_spin_unlock_irq+0x27/0x70 [ 173.395707] ____fput+0x15/0x20 [ 173.398959] task_work_run+0x199/0x270 [ 173.402835] ? task_work_cancel+0x210/0x210 [ 173.407140] ? _raw_spin_unlock+0x22/0x30 [ 173.411262] ? switch_task_namespaces+0x87/0xc0 [ 173.415908] do_exit+0x9b5/0x1ad0 [ 173.419341] ? mm_update_next_owner+0x930/0x930 [ 173.423987] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 173.429151] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 173.434323] ? check_noncircular+0x20/0x20 [ 173.438551] ? print_irqtrace_events+0x270/0x270 [ 173.443282] ? print_irqtrace_events+0x270/0x270 [ 173.448014] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 173.453191] ? lock_acquire+0x1d5/0x580 [ 173.457150] ? find_held_lock+0x35/0x1d0 [ 173.461184] ? check_noncircular+0x20/0x20 [ 173.465399] ? ext4_filemap_fault+0x8d/0xb0 [ 173.469693] ? lock_downgrade+0x990/0x990 [ 173.473814] ? __might_sleep+0x95/0x190 [ 173.477762] ? find_held_lock+0x35/0x1d0 [ 173.481800] ? get_signal+0x7ae/0x16d0 [ 173.485656] ? lock_downgrade+0x990/0x990 [ 173.489780] do_group_exit+0x149/0x400 [ 173.493638] ? do_raw_spin_trylock+0x190/0x190 [ 173.498199] ? SyS_exit+0x30/0x30 [ 173.501628] ? _raw_spin_unlock_irq+0x27/0x70 [ 173.506105] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 173.511103] get_signal+0x73f/0x16d0 [ 173.514795] ? ptrace_notify+0x130/0x130 [ 173.518829] ? find_held_lock+0x35/0x1d0 [ 173.522865] ? handle_mm_fault+0x248/0x8d0 [ 173.527069] ? lock_downgrade+0x990/0x990 [ 173.531196] do_signal+0x94/0x1ee0 [ 173.534719] ? setup_sigcontext+0x7d0/0x7d0 [ 173.539014] ? __handle_mm_fault+0x3ad0/0x3ad0 [ 173.543565] ? vmacache_find+0x5f/0x280 [ 173.547513] ? find_vma+0x30/0x150 [ 173.551031] ? __do_page_fault+0x3d6/0xc90 [ 173.555244] ? mm_fault_error+0x2c0/0x2c0 [ 173.559367] ? exit_to_usermode_loop+0x8c/0x310 [ 173.564021] exit_to_usermode_loop+0x214/0x310 [ 173.568586] ? __do_page_fault+0xc90/0xc90 [ 173.572803] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 173.578322] ? syscall_return_slowpath+0x2b3/0x510 [ 173.583232] prepare_exit_to_usermode+0x273/0x2d0 [ 173.588055] ? perf_trace_sys_enter+0xc20/0xc20 [ 173.592701] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 173.597521] retint_user+0x8/0x20 [ 173.600942] RIP: 0033:0x562e73e54f00 [ 173.604954] RSP: 002b:00007ffe1d6689f8 EFLAGS: 00010246 [ 173.610294] RAX: 00007ff8cba5f6a0 RBX: 0000000000000011 RCX: 00007ff8c9dfedd3 [ 173.617540] RDX: 00007ffe1d668aa0 RSI: 0000000000000000 RDI: 0000000000000011 [ 173.624779] RBP: 0000000000000000 R08: 00007ffe1d669160 R09: 0101010101010101 [ 173.632022] R10: 0000000000000000 R11: 0000000000000246 R12: 0000562e73e60530 [ 173.639267] R13: 0000000000000000 R14: 00007ffe1d6691b8 R15: 00007ffe1d6691bc [ 173.646646] Mem-Info: [ 173.649110] active_anon:980 inactive_anon:32 isolated_anon:0 [ 173.649110] active_file:25 inactive_file:17 isolated_file:0 [ 173.649110] unevictable:0 dirty:0 writeback:2 unstable:0 [ 173.649110] slab_reclaimable:5933 slab_unreclaimable:82551 [ 173.649110] mapped:6 shmem:39 pagetables:1597 bounce:0 [ 173.649110] free:24199 free_pcp:40 free_cma:0 [ 173.681863] Node 0 active_anon:3920kB inactive_anon:128kB active_file:100kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:24kB dirty:0kB writeback:8kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 173.708918] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 173.735752] lowmem_reserve[]: 0 2884 6397 6397 [ 173.740890] Node 0 DMA32 free:44396kB min:30396kB low:37992kB high:45588kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2956184kB mlocked:0kB kernel_stack:3264kB pagetables:1328kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 173.768980] lowmem_reserve[]: 0 0 3513 3513 [ 173.773865] Node 0 Normal free:36972kB min:37020kB low:46272kB high:55524kB active_anon:3920kB inactive_anon:128kB active_file:48kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:8960kB pagetables:5060kB bounce:0kB free_pcp:40kB local_pcp:0kB free_cma:0kB [ 173.802857] lowmem_reserve[]: 0 0 0 0 [ 173.807051] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 173.821124] Node 0 DMA32: 3*4kB (UM) 4*8kB (UME) 2*16kB (M) 5*32kB (UME) 4*64kB (UME) 5*128kB (UME) 5*256kB (UME) 4*512kB (ME) 3*1024kB (ME) 2*2048kB (ME) 8*4096kB (M) = 44396kB [ 173.837793] Node 0 Normal: 433*4kB (UMEH) 287*8kB (UMEH) 241*16kB (UMEH) 155*32kB (UMEH) 105*64kB (MH) 46*128kB (M) 21*256kB (ME) 6*512kB (UME) 3*1024kB (UM) 0*2048kB 0*4096kB = 36972kB [ 173.854924] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 173.864061] 63 total pagecache pages [ 173.868262] 0 pages in swap cache [ 173.872125] Swap cache stats: add 0, delete 0, find 0/0 [ 173.877910] Free swap = 0kB [ 173.881515] Total swap = 0kB [ 173.884930] 1965979 pages RAM [ 173.888676] 0 pages HighMem/MovableOnly [ 173.893031] 323593 pages reserved [ 173.896923] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 173.906165] [ 1547] 0 1547 5349 129 17 3 0 -1000 udevd [ 173.914959] [ 1663] 0 1663 5348 130 16 3 0 -1000 udevd [ 173.923715] [ 1664] 0 1664 5348 129 16 3 0 -1000 udevd [ 173.932477] [ 2922] 0 2922 14265 167 24 3 0 0 rsyslogd [ 173.941500] [ 2957] 0 2957 4725 47 14 3 0 0 cron [ 173.950185] [ 2983] 0 2983 12490 153 28 3 0 -1000 sshd [ 173.958846] [ 3007] 0 3007 3694 41 13 3 0 0 getty [ 173.967600] [ 3008] 0 3008 3694 41 13 3 0 0 getty [ 173.976359] [ 3009] 0 3009 3694 39 12 3 0 0 getty [ 173.985132] [ 3010] 0 3010 3694 40 13 3 0 0 getty [ 173.993900] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 174.002653] [ 3012] 0 3012 3694 41 13 3 0 0 getty [ 174.011416] [ 3013] 0 3013 3649 39 12 3 0 0 getty [ 174.020197] [ 3037] 0 3037 580122 0 286 4 0 0 syzkaller525833 [ 174.029826] [ 3038] 0 3038 356781 0 177 3 0 0 syzkaller525833 [ 174.039458] [ 3040] 0 3040 524799 0 259 4 0 0 syzkaller525833 Connection to ci-upstream-kasan-gce-386-3 closed by remote host. [ 174.049093] [ 3042] 0 3042 405957 0 201 3 0 0 syzkaller52583