[ 14.105458] ? trace_hardirqs_on+0xd/0x10 [ 14.109572] default_idle+0xbf/0x460 [ 14.113250] ? __sched_text_end+0x4/0x4 [ 14.117191] arch_cpu_idle+0xa/0x10 [ 14.120781] default_idle_call+0x36/0x90 [ 14.124808] do_idle+0x24e/0x3b0 [ 14.128143] ? complete+0x62/0x80 [ 14.131559] cpu_startup_entry+0x18/0x20 [ 14.135586] start_secondary+0x2ea/0x3f0 [ 14.139616] secondary_startup_64+0xa5/0xa5 Warning: Permanently added 'ci-upstream-net-kasan-gce-4,10.128.0.59' (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 executing program executing program executing program executing program executing program executing program executing program [ 30.521211] syzkaller248416 (4519) used greatest stack depth: 15888 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 35.680650] modprobe (4630) used greatest stack depth: 12784 bytes left [ 61.482284] kworker/1:0 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 61.495320] kworker/1:0 cpuset=/ mems_allowed=0 [ 61.499985] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.14.0-rc7+ #114 [ 61.506885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.516222] Workqueue: events pcpu_balance_workfn [ 61.521041] Call Trace: [ 61.523609] dump_stack+0x194/0x257 [ 61.527218] ? arch_local_irq_restore+0x53/0x53 [ 61.531872] dump_header+0x234/0xa0e [ 61.535563] ? task_will_free_mem+0x252/0xaa0 [ 61.540041] ? pagefault_out_of_memory+0x152/0x152 [ 61.544951] ? lock_acquire+0x1d5/0x580 [ 61.548899] ? ___ratelimit+0x30d/0x630 [ 61.552849] ? lock_downgrade+0x990/0x990 [ 61.556973] ? avc_has_perm_noaudit+0x37e/0x520 [ 61.561620] ? lock_release+0xa40/0xa40 [ 61.565576] ? do_raw_spin_trylock+0x190/0x190 [ 61.570136] ? lock_downgrade+0x990/0x990 [ 61.574266] ? trace_hardirqs_on+0xd/0x10 [ 61.578394] ? ___ratelimit+0x95/0x630 [ 61.582257] ? idr_get_free_cmn+0xfd0/0xfd0 [ 61.586556] ? cred_has_capability+0x1a0/0x3d0 [ 61.591121] oom_kill_process+0x86d/0x13d0 [ 61.595330] ? lock_downgrade+0x990/0x990 [ 61.599450] ? lock_release+0xa40/0xa40 [ 61.603402] ? lock_release+0xa40/0xa40 [ 61.607358] ? oom_evaluate_task+0x480/0x480 [ 61.611744] ? security_capable_noaudit+0x8b/0xc0 [ 61.616568] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 61.621651] ? has_capability+0x30/0x30 [ 61.625601] ? do_raw_spin_trylock+0x190/0x190 [ 61.630169] ? has_capability_noaudit+0x24/0x30 [ 61.634814] ? oom_badness+0xdf/0xb80 [ 61.638589] ? lock_downgrade+0x990/0x990 [ 61.642716] ? find_lock_task_mm+0x460/0x460 [ 61.647098] ? lock_release+0xa40/0xa40 [ 61.651067] ? out_of_memory+0xaa9/0x11d0 [ 61.655192] ? lock_downgrade+0x990/0x990 [ 61.659316] ? lock_release+0xa40/0xa40 [ 61.663264] ? lock_acquire+0x1d5/0x580 [ 61.667216] ? blocking_notifier_call_chain+0x112/0x190 [ 61.672556] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 61.677550] ? srcu_init_notifier_head+0x80/0x80 [ 61.682286] ? oom_evaluate_task+0x284/0x480 [ 61.686674] out_of_memory+0x7dc/0x11d0 [ 61.690622] ? trace_hardirqs_on+0xd/0x10 [ 61.694753] ? oom_killer_disable+0x310/0x310 [ 61.699223] ? mutex_trylock+0x23a/0x2d0 [ 61.703262] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 61.708686] ? check_same_owner+0x320/0x320 [ 61.712994] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 61.717832] ? warn_alloc+0x2f0/0x2f0 [ 61.721612] ? lock_downgrade+0x990/0x990 [ 61.725745] ? lock_release+0xa40/0xa40 [ 61.729696] ? __unwind_start+0x169/0x330 [ 61.733822] ? in_lock_functions+0x20/0x20 [ 61.738038] ? mutex_spin_on_owner+0x446/0xb50 [ 61.742587] ? lock_acquire+0x1d5/0x580 [ 61.746526] ? osq_lock+0xed0/0xed0 [ 61.750120] ? check_same_owner+0x320/0x320 [ 61.754403] ? lock_release+0xa40/0xa40 [ 61.758344] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 61.763672] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 61.768829] ? __mutex_lock+0x113b/0x1a80 [ 61.772943] ? lock_acquire+0x1d5/0x580 [ 61.776880] ? lock_acquire+0x1d5/0x580 [ 61.780819] ? fs_reclaim_acquire+0x20/0x20 [ 61.785103] ? lock_downgrade+0x990/0x990 [ 61.789216] ? check_same_owner+0x320/0x320 [ 61.793506] ? __might_sleep+0x95/0x190 [ 61.797446] __alloc_pages_nodemask+0x9fb/0xd80 [ 61.802080] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 61.807410] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 61.812391] ? dequeue_task_fair+0x147d/0x39e0 [ 61.816944] ? wait_for_completion+0x770/0x770 [ 61.821489] ? lock_acquire+0x1d5/0x580 [ 61.825427] ? pcpu_balance_workfn+0xd4a/0x1520 [ 61.830066] ? find_next_bit+0x27/0x30 [ 61.833920] pcpu_populate_chunk+0x1b3/0x880 [ 61.838299] pcpu_balance_workfn+0xf3e/0x1520 [ 61.842760] ? msleep_interruptible+0x150/0x150 [ 61.847390] ? _find_next_bit+0xee/0x120 [ 61.851415] ? _find_next_bit+0xee/0x120 [ 61.855487] ? pcpu_create_chunk+0x900/0x900 [ 61.859860] ? refresh_cpu_vm_stats+0x4b0/0x640 [ 61.864505] ? lock_acquire+0x1d5/0x580 [ 61.868441] ? lock_acquire+0x1d5/0x580 [ 61.872379] ? process_one_work+0xb32/0x1bc0 [ 61.876753] ? switch_mm_irqs_off+0x8e1/0x1380 [ 61.881300] ? lock_release+0xa40/0xa40 [ 61.885238] ? finish_task_switch+0x1d3/0x740 [ 61.889699] ? do_raw_spin_trylock+0x190/0x190 [ 61.894246] ? rcu_sched_qs+0xe/0x140 [ 61.898023] process_one_work+0xbf0/0x1bc0 [ 61.902231] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 61.907391] ? pwq_dec_nr_in_flight+0x450/0x450 [ 61.912027] ? preempt_notifier_dec+0x20/0x20 [ 61.916487] ? sched_clock_cpu+0x1b/0x170 [ 61.920604] ? __schedule+0x8f3/0x2060 [ 61.924462] ? check_noncircular+0x20/0x20 [ 61.928673] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 61.933399] ? retint_kernel+0x10/0x10 [ 61.937257] ? lock_acquire+0x1d5/0x580 [ 61.941196] ? lock_acquire+0x1d5/0x580 [ 61.945134] ? worker_thread+0x4a3/0x1990 [ 61.949244] ? lock_downgrade+0x990/0x990 [ 61.953357] ? lock_release+0xa40/0xa40 [ 61.957293] ? retint_kernel+0x10/0x10 [ 61.961145] ? do_raw_spin_trylock+0x190/0x190 [ 61.965697] worker_thread+0x223/0x1990 [ 61.969645] ? process_one_work+0x1bc0/0x1bc0 [ 61.974126] ? _raw_spin_unlock_irq+0x27/0x70 [ 61.978586] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 61.983564] ? trace_hardirqs_on+0xd/0x10 [ 61.987677] ? finish_task_switch+0x1d3/0x740 [ 61.992133] ? finish_task_switch+0x1aa/0x740 [ 61.996593] ? preempt_notifier_dec+0x20/0x20 [ 62.001072] ? __schedule+0x8f3/0x2060 [ 62.004933] ? find_held_lock+0x35/0x1d0 [ 62.008962] ? find_held_lock+0x35/0x1d0 [ 62.012993] ? complete+0x62/0x80 [ 62.016418] ? __schedule+0x2060/0x2060 [ 62.020355] ? do_wait_intr+0x3e0/0x3e0 [ 62.024292] ? __lockdep_init_map+0xe4/0x650 [ 62.028663] ? do_raw_spin_trylock+0x190/0x190 [ 62.033209] ? lockdep_init_map+0x9/0x10 [ 62.037233] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 62.042300] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 62.047285] ? trace_hardirqs_on+0xd/0x10 [ 62.051397] ? __kthread_parkme+0x175/0x240 [ 62.055685] kthread+0x35e/0x430 [ 62.059020] ? process_one_work+0x1bc0/0x1bc0 [ 62.063485] ? kthread_create_on_node+0x100/0x100 [ 62.068294] ret_from_fork+0x2a/0x40 [ 62.072039] Mem-Info: [ 62.074473] active_anon:4323 inactive_anon:32 isolated_anon:0 [ 62.074473] active_file:18 inactive_file:17 isolated_file:0 [ 62.074473] unevictable:0 dirty:0 writeback:0 unstable:0 [ 62.074473] slab_reclaimable:5997 slab_unreclaimable:82080 [ 62.074473] mapped:2 shmem:39 pagetables:1503 bounce:0 [ 62.074473] free:24309 free_pcp:441 free_cma:0 [ 62.106683] Node 0 active_anon:17292kB inactive_anon:128kB active_file:72kB inactive_file:68kB 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? yes [ 62.133218] 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 [ 62.160283] lowmem_reserve[]: 0 2884 6397 6397 [ 62.164863] Node 0 DMA32 free:44372kB min:30396kB low:37992kB high:45588kB active_anon:2828kB inactive_anon:4kB active_file:64kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:1168kB local_pcp:532kB free_cma:0kB [ 62.193393] lowmem_reserve[]: 0 0 3513 3513 [ 62.197709] Node 0 Normal free:36956kB min:37020kB low:46272kB high:55524kB active_anon:14464kB inactive_anon:124kB active_file:8kB inactive_file:16kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11520kB pagetables:4664kB bounce:0kB free_pcp:600kB local_pcp:152kB free_cma:0kB [ 62.226504] lowmem_reserve[]: 0 0 0 0 [ 62.230297] 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 [ 62.243834] Node 0 DMA32: 1*4kB (U) 8*8kB (ME) 21*16kB (UME) 14*32kB (UME) 8*64kB (UME) 2*128kB (UE) 3*256kB (UM) 4*512kB (UME) 3*1024kB (UME) 2*2048kB (UE) 8*4096kB (M) = 44372kB [ 62.260015] Node 0 Normal: 625*4kB (ME) 445*8kB (UME) 268*16kB (M) 158*32kB (M) 109*64kB (UME) 42*128kB (ME) 14*256kB (UM) 3*512kB (UME) 2*1024kB (M) 1*2048kB (M) 0*4096kB = 36972kB [ 62.276371] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 62.284931] 74 total pagecache pages [ 62.288631] 0 pages in swap cache [ 62.292070] Swap cache stats: add 0, delete 0, find 0/0 [ 62.297417] Free swap = 0kB [ 62.300421] Total swap = 0kB [ 62.303427] 1965979 pages RAM [ 62.306513] 0 pages HighMem/MovableOnly [ 62.310467] 323598 pages reserved [ 62.313912] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 62.322572] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 62.331311] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 62.340045] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 62.348780] [ 2790] 0 2790 2493 574 9 3 0 0 dhclient [ 62.357785] [ 2926] 0 2926 30649 169 24 3 0 0 rsyslogd [ 62.366788] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 62.375442] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 62.384097] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 62.392834] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 62.401574] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 62.410314] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 62.419054] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 62.427792] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 62.436536] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 62.445277] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 62.453931] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 62.463542] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 62.473140] [ 3039] 0 3039 356826 373 178 4 0 0 syzkaller248416 [ 62.482746] [ 3042] 0 3042 455178 472 226 5 0 0 syzkaller248416 [ 62.492348] [ 3045] 0 3045 459276 475 228 5 0 0 syzkaller248416 [ 62.501954] [ 3047] 0 3047 502305 518 249 5 0 0 syzkaller248416 [ 62.511551] [ 3049] 0 3049 358875 376 179 4 0 0 syzkaller248416 [ 62.521150] Out of memory: Kill process 3047 (syzkaller248416) score 0 or sacrifice child [ 62.529547] Killed process 3047 (syzkaller248416) total-vm:2009220kB, anon-rss:2072kB, file-rss:0kB, shmem-rss:0kB [ 62.544350] oom_reaper: reaped process 3047 (syzkaller248416), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 62.910849] rsyslogd invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 62.923398] rsyslogd cpuset=/ mems_allowed=0 [ 62.927849] CPU: 0 PID: 2929 Comm: rsyslogd Not tainted 4.14.0-rc7+ #114 [ 62.934652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.943968] Call Trace: [ 62.946520] dump_stack+0x194/0x257 [ 62.950115] ? arch_local_irq_restore+0x53/0x53 [ 62.954755] dump_header+0x234/0xa0e [ 62.958432] ? task_will_free_mem+0x252/0xaa0 [ 62.962897] ? pagefault_out_of_memory+0x152/0x152 [ 62.967791] ? lock_acquire+0x1d5/0x580 [ 62.971750] ? ___ratelimit+0x30d/0x630 [ 62.975687] ? lock_downgrade+0x990/0x990 [ 62.979810] ? avc_has_perm_noaudit+0x37e/0x520 [ 62.984444] ? lock_release+0xa40/0xa40 [ 62.988383] ? do_raw_spin_trylock+0x190/0x190 [ 62.992929] ? lock_downgrade+0x990/0x990 [ 62.997042] ? trace_hardirqs_on+0xd/0x10 [ 63.001153] ? ___ratelimit+0x95/0x630 [ 63.005003] ? idr_get_free_cmn+0xfd0/0xfd0 [ 63.009290] ? cred_has_capability+0x1a0/0x3d0 [ 63.013837] oom_kill_process+0x86d/0x13d0 [ 63.018033] ? lock_downgrade+0x990/0x990 [ 63.022142] ? lock_release+0xa40/0xa40 [ 63.026082] ? lock_release+0xa40/0xa40 [ 63.030020] ? oom_evaluate_task+0x480/0x480 [ 63.034393] ? security_capable_noaudit+0x8b/0xc0 [ 63.039202] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 63.044271] ? has_capability+0x30/0x30 [ 63.048207] ? do_raw_spin_trylock+0x190/0x190 [ 63.052759] ? has_capability_noaudit+0x24/0x30 [ 63.057390] ? oom_badness+0xdf/0xb80 [ 63.061153] ? lock_downgrade+0x990/0x990 [ 63.065265] ? find_lock_task_mm+0x460/0x460 [ 63.069635] ? lock_release+0xa40/0xa40 [ 63.073580] ? out_of_memory+0xaa9/0x11d0 [ 63.077689] ? lock_downgrade+0x990/0x990 [ 63.081800] ? lock_release+0xa40/0xa40 [ 63.085736] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 63.090716] ? srcu_init_notifier_head+0x80/0x80 [ 63.095436] ? oom_evaluate_task+0x284/0x480 [ 63.099809] out_of_memory+0x7dc/0x11d0 [ 63.103745] ? trace_hardirqs_on+0xd/0x10 [ 63.107861] ? oom_killer_disable+0x310/0x310 [ 63.112317] ? mutex_trylock+0x23a/0x2d0 [ 63.116341] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 63.121761] ? check_same_owner+0x320/0x320 [ 63.126053] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 63.130862] ? __radix_tree_insert+0x7b0/0x7b0 [ 63.135422] ? warn_alloc+0x2f0/0x2f0 [ 63.139186] ? lock_acquire+0x1d5/0x580 [ 63.143120] ? lock_acquire+0x1d5/0x580 [ 63.147057] ? find_get_entry+0x513/0x9e0 [ 63.151175] ? lock_downgrade+0x990/0x990 [ 63.155297] ? radix_tree_lookup_slot+0x99/0xe0 [ 63.159929] ? __radix_tree_lookup+0x5e0/0x5e0 [ 63.164478] ? __might_sleep+0x95/0x190 [ 63.168418] ? find_get_entry+0x53c/0x9e0 [ 63.172534] ? find_get_pages_tag+0xf40/0xf40 [ 63.176993] ? blk_init_request_from_bio+0x3d0/0x3d0 [ 63.182063] ? __radix_tree_lookup+0x435/0x5e0 [ 63.186615] ? lock_acquire+0x1d5/0x580 [ 63.190558] ? fs_reclaim_acquire+0x20/0x20 [ 63.194848] ? lock_downgrade+0x990/0x990 [ 63.198963] ? check_same_owner+0x320/0x320 [ 63.203253] ? __page_cache_alloc+0x12d/0x500 [ 63.207715] ? __might_sleep+0x95/0x190 [ 63.211654] __alloc_pages_nodemask+0x9fb/0xd80 [ 63.216287] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 63.221265] ? add_to_page_cache_lru+0x510/0x510 [ 63.225993] ? read_cache_pages+0x990/0x990 [ 63.230278] ? __schedule+0x8f3/0x2060 [ 63.234129] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 63.238856] alloc_pages_current+0xb6/0x1e0 [ 63.243147] __page_cache_alloc+0x334/0x500 [ 63.247434] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 63.254760] filemap_fault+0xf32/0x1d30 [ 63.258702] ? __lock_page_or_retry+0x4f0/0x4f0 [ 63.263335] ? filemap_map_pages+0x942/0x15d0 [ 63.267791] ? try_to_wake_up+0xf9/0x1600 [ 63.271909] ? find_get_entries_tag+0xeb0/0xeb0 [ 63.276541] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 63.281693] ? activate_task+0x150/0x2c0 [ 63.285719] ? trace_hardirqs_on+0xd/0x10 [ 63.289833] ? try_to_wake_up+0xf9/0x1600 [ 63.293945] ? try_to_wake_up+0xf9/0x1600 [ 63.298057] ? migrate_swap_stop+0x970/0x970 [ 63.302431] ? lock_acquire+0x1d5/0x580 [ 63.306366] ? lock_acquire+0x1d5/0x580 [ 63.310304] ? ext4_filemap_fault+0x7a/0xb0 [ 63.314591] ? futex_wake+0x566/0x680 [ 63.318355] ? lock_release+0xa40/0xa40 [ 63.322291] ? check_same_owner+0x320/0x320 [ 63.326575] ? lock_release+0xa40/0xa40 [ 63.330513] ? ext4_filemap_fault+0x8d/0xb0 [ 63.334805] ? __might_sleep+0x95/0x190 [ 63.338744] ? down_read+0x96/0x150 [ 63.342332] ? ext4_filemap_fault+0x7a/0xb0 [ 63.346616] ? __down_interruptible+0x6b0/0x6b0 [ 63.351252] ext4_filemap_fault+0x82/0xb0 [ 63.355362] __do_fault+0xeb/0x30f [ 63.358870] ? pte_offset_kernel+0xc7/0xc7 [ 63.363067] ? do_raw_spin_trylock+0x190/0x190 [ 63.367611] ? do_raw_spin_trylock+0x190/0x190 [ 63.372161] __handle_mm_fault+0x1c7a/0x3ad0 [ 63.376537] ? __pmd_alloc+0x4e0/0x4e0 [ 63.380390] ? exit_robust_list+0x240/0x240 [ 63.384677] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 63.391307] ? quarantine_put+0xeb/0x190 [ 63.395335] ? lock_acquire+0x1d5/0x580 [ 63.399271] ? handle_mm_fault+0x248/0x8d0 [ 63.403468] ? lock_downgrade+0x990/0x990 [ 63.407592] handle_mm_fault+0x334/0x8d0 [ 63.411615] ? down_read_trylock+0xdb/0x170 [ 63.415898] ? __do_page_fault+0x32d/0xc90 [ 63.420097] ? __handle_mm_fault+0x3ad0/0x3ad0 [ 63.424641] ? vmacache_find+0x5f/0x280 [ 63.428578] ? find_vma+0x30/0x150 [ 63.432081] __do_page_fault+0x5c9/0xc90 [ 63.436105] ? vfs_copy_file_range+0x940/0x940 [ 63.440652] ? mm_fault_error+0x2c0/0x2c0 [ 63.444762] ? __fsnotify_parent+0xb4/0x3a0 [ 63.449045] ? avc_policy_seqno+0x9/0x20 [ 63.453068] ? fsnotify+0x1af0/0x1af0 [ 63.456833] do_page_fault+0xee/0x720 [ 63.460596] ? __do_page_fault+0xc90/0xc90 [ 63.464795] ? SyS_futex+0x269/0x390 [ 63.468473] ? debug_locks_off+0x86/0xa0 [ 63.472497] ? lockdep_sys_exit+0x48/0xda [ 63.476609] ? prepare_exit_to_usermode+0x1a0/0x2d0 [ 63.481588] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 63.486396] page_fault+0x22/0x30 [ 63.489811] RIP: 0033:0x41a83f [ 63.492965] RSP: 002b:00007f9ce65c4d70 EFLAGS: 00010202 [ 63.498291] RAX: 0000000000000000 RBX: 00007f9ce65c4d88 RCX: 0000000000000000 [ 63.505523] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000001 [ 63.512754] RBP: 0000000000000004 R08: 0000000000000000 R09: 00000000000007e1 [ 63.519985] R10: 0000000000000010 R11: a3d70a3d70a3d70b R12: 0000000000000000 [ 63.527218] R13: 00007f9ce7dfa5a3 R14: 0000000000000001 R15: 00007f9ce7df96bc [ 63.534535] Mem-Info: [ 63.536986] active_anon:3806 inactive_anon:32 isolated_anon:0 [ 63.536986] active_file:18 inactive_file:16 isolated_file:0 [ 63.536986] unevictable:0 dirty:0 writeback:3 unstable:0 [ 63.536986] slab_reclaimable:6004 slab_unreclaimable:82207 [ 63.536986] mapped:25 shmem:39 pagetables:1503 bounce:0 [ 63.536986] free:24330 free_pcp:256 free_cma:0 [ 63.589040] Node 0 active_anon:15224kB inactive_anon:128kB active_file:156kB inactive_file:208kB unevictable:0kB isolated(anon):0kB isolated(file):124kB mapped:200kB dirty:0kB writeback:12kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 63.691169] 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 [ 63.717619] lowmem_reserve[]: 0 2884 6397 6397 [ 63.726641] Node 0 DMA32 free:43588kB min:30396kB low:37992kB high:45588kB active_anon:2384kB inactive_anon:4kB active_file:104kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:404kB local_pcp:188kB free_cma:0kB [ 63.767020] lowmem_reserve[]: 0 0 3513 3513 [ 63.783590] Node 0 Normal free:37348kB min:37020kB low:46272kB high:55524kB active_anon:12840kB inactive_anon:124kB active_file:72kB inactive_file:108kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11520kB pagetables:4664kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB [ 63.812787] lowmem_reserve[]: 0 0 0 0 [ 63.816690] 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 [ 63.830273] Node 0 DMA32: 117*4kB (M) 69*8kB (UME) 44*16kB (UME) 18*32kB (UME) 8*64kB (ME) 2*128kB (UE) 2*256kB (M) 3*512kB (UME) 2*1024kB (ME) 2*2048kB (UE) 8*4096kB (M) = 44028kB [ 63.846543] Node 0 Normal: 614*4kB (ME) 505*8kB (UM) 295*16kB (M) 162*32kB (UM) 114*64kB (UME) 44*128kB (ME) 13*256kB (M) 2*512kB (ME) 3*1024kB (UM) 0*2048kB 0*4096kB = 36752kB [ 63.862501] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 63.871069] 89 total pagecache pages [ 63.874766] 0 pages in swap cache [ 63.878204] Swap cache stats: add 0, delete 0, find 0/0 [ 63.883551] Free swap = 0kB [ 63.886555] Total swap = 0kB [ 63.889560] 1965979 pages RAM [ 63.892648] 0 pages HighMem/MovableOnly [ 63.896604] 323598 pages reserved [ 63.900041] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 63.908707] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 63.917447] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 63.926177] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 63.934906] [ 2790] 0 2790 2493 574 9 3 0 0 dhclient [ 63.943894] [ 2926] 0 2926 30649 172 24 3 0 0 rsyslogd [ 63.952889] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 63.961535] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 63.970187] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 63.978922] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 63.987657] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 63.996397] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 64.005131] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 64.013872] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 64.022608] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 64.031343] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 64.039994] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 64.049598] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 64.059293] [ 3039] 0 3039 356826 373 178 4 0 0 syzkaller248416 [ 64.068902] [ 3042] 0 3042 455178 472 226 5 0 0 syzkaller248416 [ 64.078509] [ 3045] 0 3045 459276 475 228 5 0 0 syzkaller248416 [ 64.088113] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 64.097716] [ 3049] 0 3049 358875 376 179 4 0 0 syzkaller248416 [ 64.107321] Out of memory: Kill process 3045 (syzkaller248416) score 0 or sacrifice child [ 64.115729] Killed process 3045 (syzkaller248416) total-vm:1837104kB, anon-rss:1900kB, file-rss:0kB, shmem-rss:0kB [ 64.134238] oom_reaper: reaped process 3045 (syzkaller248416), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 64.224736] syzkaller248416 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 64.238138] syzkaller248416 cpuset=/ mems_allowed=0 [ 64.243147] CPU: 0 PID: 3079 Comm: syzkaller248416 Not tainted 4.14.0-rc7+ #114 [ 64.250553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.259870] Call Trace: [ 64.262425] dump_stack+0x194/0x257 [ 64.266018] ? arch_local_irq_restore+0x53/0x53 [ 64.270658] dump_header+0x234/0xa0e [ 64.274338] ? task_will_free_mem+0x252/0xaa0 [ 64.278800] ? pagefault_out_of_memory+0x152/0x152 [ 64.283694] ? lock_acquire+0x1d5/0x580 [ 64.287633] ? ___ratelimit+0x30d/0x630 [ 64.291569] ? lock_downgrade+0x990/0x990 [ 64.295680] ? avc_has_perm_noaudit+0x37e/0x520 [ 64.300310] ? lock_release+0xa40/0xa40 [ 64.304249] ? do_raw_spin_trylock+0x190/0x190 [ 64.308796] ? lock_downgrade+0x990/0x990 [ 64.313376] ? trace_hardirqs_on+0xd/0x10 [ 64.317489] ? ___ratelimit+0x95/0x630 [ 64.321339] ? idr_get_free_cmn+0xfd0/0xfd0 [ 64.325627] ? cred_has_capability+0x1a0/0x3d0 [ 64.330177] oom_kill_process+0x86d/0x13d0 [ 64.334377] ? lock_downgrade+0x990/0x990 [ 64.338486] ? lock_release+0xa40/0xa40 [ 64.342424] ? lock_release+0xa40/0xa40 [ 64.346367] ? oom_evaluate_task+0x480/0x480 [ 64.350738] ? security_capable_noaudit+0x8b/0xc0 [ 64.355546] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 64.360612] ? has_capability+0x30/0x30 [ 64.364548] ? do_raw_spin_trylock+0x190/0x190 [ 64.369097] ? has_capability_noaudit+0x24/0x30 [ 64.373730] ? oom_badness+0xdf/0xb80 [ 64.377492] ? lock_downgrade+0x990/0x990 [ 64.381605] ? find_lock_task_mm+0x460/0x460 [ 64.385983] ? lock_release+0xa40/0xa40 [ 64.389929] ? out_of_memory+0xaa9/0x11d0 [ 64.394040] ? lock_downgrade+0x990/0x990 [ 64.398154] ? lock_release+0xa40/0xa40 [ 64.402088] ? lock_acquire+0x1d5/0x580 [ 64.406024] ? blocking_notifier_call_chain+0x112/0x190 [ 64.411350] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 64.416330] ? srcu_init_notifier_head+0x80/0x80 [ 64.421055] ? oom_evaluate_task+0x284/0x480 [ 64.425430] out_of_memory+0x7dc/0x11d0 [ 64.429372] ? oom_killer_disable+0x310/0x310 [ 64.433840] ? mutex_trylock+0x23a/0x2d0 [ 64.437867] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 64.443284] ? find_next_bit+0x27/0x30 [ 64.447136] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 64.451954] ? warn_alloc+0x2f0/0x2f0 [ 64.455717] ? lock_downgrade+0x990/0x990 [ 64.459829] ? lock_release+0xa40/0xa40 [ 64.463763] ? retint_kernel+0x10/0x10 [ 64.467615] ? in_lock_functions+0x20/0x20 [ 64.471822] ? mutex_spin_on_owner+0x446/0xb50 [ 64.476366] ? lock_acquire+0x1d5/0x580 [ 64.480302] ? osq_lock+0xed0/0xed0 [ 64.483892] ? try_to_wake_up+0xf9/0x1600 [ 64.488003] ? check_same_owner+0x320/0x320 [ 64.492284] ? lock_release+0xa40/0xa40 [ 64.496220] ? lock_release+0xa40/0xa40 [ 64.500158] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 64.505311] ? __mutex_lock+0x113b/0x1a80 [ 64.509421] ? lock_acquire+0x1d5/0x580 [ 64.513356] ? lock_acquire+0x1d5/0x580 [ 64.517291] ? fs_reclaim_acquire+0x20/0x20 [ 64.521573] ? lock_downgrade+0x990/0x990 [ 64.525688] ? check_same_owner+0x320/0x320 [ 64.529972] ? radix_tree_lookup+0x21/0x30 [ 64.534173] ? __might_sleep+0x95/0x190 [ 64.538110] __alloc_pages_nodemask+0x9fb/0xd80 [ 64.542745] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 64.547728] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 64.552619] ? pcpu_chunk_relocate+0x315/0x770 [ 64.557163] ? pcpu_populate_chunk+0x880/0x880 [ 64.561706] ? pcpu_balance_workfn+0x1520/0x1520 [ 64.566423] ? pcpu_alloc+0x4f8/0x10e0 [ 64.570277] ? find_next_bit+0x27/0x30 [ 64.574129] pcpu_populate_chunk+0x1b3/0x880 [ 64.578506] pcpu_alloc+0x978/0x10e0 [ 64.582188] ? pcpu_free_area+0xa00/0xa00 [ 64.586298] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 64.590759] ? vmap_page_range_noflush+0x523/0x720 [ 64.595658] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.600377] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.605101] ? retint_kernel+0x10/0x10 [ 64.608956] __alloc_percpu_gfp+0x27/0x30 [ 64.613068] array_map_alloc+0x68a/0x830 [ 64.617096] SyS_bpf+0x87f/0x3f30 [ 64.620511] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 64.625663] ? bpf_prog_get+0x20/0x20 [ 64.629457] ? finish_task_switch+0x1d3/0x740 [ 64.633913] ? lock_downgrade+0x990/0x990 [ 64.638029] ? lock_release+0xa40/0xa40 [ 64.641969] ? do_raw_spin_trylock+0x190/0x190 [ 64.646526] ? syscall_return_slowpath+0x2b3/0x510 [ 64.651417] ? finish_task_switch+0x1aa/0x740 [ 64.655876] ? prepare_exit_to_usermode+0x2d0/0x2d0 [ 64.660859] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.665581] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 64.670298] RIP: 0033:0x445fe9 [ 64.673451] RSP: 002b:00007f57d79d0dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 64.681122] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445fe9 [ 64.688355] RDX: 000000000000001c RSI: 0000000020ed1000 RDI: 0000000000000000 [ 64.695598] RBP: 00007ffd5aa3b130 R08: 00007f57d79d1700 R09: 00007f57d79d1700 [ 64.702838] R10: 00007f57d79d1700 R11: 0000000000000246 R12: 0000000000000000 [ 64.710073] R13: 00007ffd5aa3b12f R14: 00007f57d79d19c0 R15: 0000000000000000 [ 64.717372] Mem-Info: [ 64.720121] active_anon:3332 inactive_anon:32 isolated_anon:0 [ 64.720121] active_file:17 inactive_file:17 isolated_file:0 [ 64.720121] unevictable:0 dirty:1 writeback:0 unstable:0 [ 64.720121] slab_reclaimable:6012 slab_unreclaimable:82247 [ 64.720121] mapped:2 shmem:39 pagetables:1503 bounce:0 [ 64.720121] free:24289 free_pcp:89 free_cma:0 [ 64.752299] Node 0 active_anon:13328kB inactive_anon:128kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:4kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 64.778965] 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 [ 64.805207] lowmem_reserve[]: 0 2884 6397 6397 [ 64.809851] Node 0 DMA32 free:44264kB min:30396kB low:37992kB high:45588kB active_anon:1788kB inactive_anon:4kB active_file:64kB inactive_file:192kB unevictable:0kB writepending:4kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:84kB local_pcp:0kB free_cma:0kB [ 64.838322] lowmem_reserve[]: 0 0 3513 3513 [ 64.842776] Node 0 Normal free:37028kB min:37020kB low:46272kB high:55524kB active_anon:11540kB inactive_anon:124kB active_file:16kB inactive_file:236kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11520kB pagetables:4664kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 64.871879] lowmem_reserve[]: 0 0 0 0 [ 64.875835] 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 [ 64.889598] Node 0 DMA32: 7*4kB (UM) 67*8kB (ME) 47*16kB (UME) 22*32kB (UME) 10*64kB (ME) 4*128kB (ME) 2*256kB (M) 3*512kB (UME) 2*1024kB (ME) 2*2048kB (UE) 8*4096kB (M) = 44132kB [ 64.905798] Node 0 Normal: 726*4kB (UM) 528*8kB (UME) 332*16kB (UM) 177*32kB (UME) 112*64kB (UM) 45*128kB (UME) 13*256kB (UM) 2*512kB (ME) 2*1024kB (UM) 0*2048kB 0*4096kB = 37432kB [ 64.922061] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 64.930689] 74 total pagecache pages [ 64.934465] 0 pages in swap cache [ 64.937995] Swap cache stats: add 0, delete 0, find 0/0 [ 64.943422] Free swap = 0kB [ 64.946484] Total swap = 0kB [ 64.949568] 1965979 pages RAM [ 64.952720] 0 pages HighMem/MovableOnly [ 64.956752] 323598 pages reserved [ 64.960255] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 64.969102] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 64.977862] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 64.986658] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 64.995414] [ 2790] 0 2790 2493 574 9 3 0 0 dhclient [ 65.004407] [ 2926] 0 2926 30649 172 24 3 0 0 rsyslogd [ 65.013399] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 65.022058] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 65.030703] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 65.039432] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 65.048160] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 65.056890] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 65.065619] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 65.074347] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 65.083077] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 65.091810] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 65.100451] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 65.110047] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 65.119644] [ 3039] 0 3039 356826 373 178 4 0 0 syzkaller248416 [ 65.129242] [ 3042] 0 3042 455178 472 226 5 0 0 syzkaller248416 [ 65.138840] [ 3045] 0 3045 459276 0 228 5 0 0 syzkaller248416 [ 65.148437] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 65.158034] [ 3049] 0 3049 358875 376 179 4 0 0 syzkaller248416 [ 65.167627] Out of memory: Kill process 3042 (syzkaller248416) score 0 or sacrifice child [ 65.176034] Killed process 3042 (syzkaller248416) total-vm:1820712kB, anon-rss:1888kB, file-rss:0kB, shmem-rss:0kB [ 65.189290] oom_reaper: reaped process 3042 (syzkaller248416), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 65.594972] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 65.608031] kworker/0:2 cpuset=/ mems_allowed=0 [ 65.612702] CPU: 0 PID: 1363 Comm: kworker/0:2 Not tainted 4.14.0-rc7+ #114 [ 65.619772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.629103] Workqueue: events pcpu_balance_workfn [ 65.633908] Call Trace: [ 65.636463] dump_stack+0x194/0x257 [ 65.640062] ? arch_local_irq_restore+0x53/0x53 [ 65.644702] dump_header+0x234/0xa0e [ 65.648381] ? task_will_free_mem+0x252/0xaa0 [ 65.652844] ? pagefault_out_of_memory+0x152/0x152 [ 65.657740] ? lock_acquire+0x1d5/0x580 [ 65.661683] ? ___ratelimit+0x30d/0x630 [ 65.665624] ? lock_downgrade+0x990/0x990 [ 65.669738] ? avc_has_perm_noaudit+0x37e/0x520 [ 65.674373] ? lock_release+0xa40/0xa40 [ 65.678315] ? do_raw_spin_trylock+0x190/0x190 [ 65.682862] ? lock_downgrade+0x990/0x990 [ 65.686978] ? trace_hardirqs_on+0xd/0x10 [ 65.691096] ? ___ratelimit+0x95/0x630 [ 65.694948] ? idr_get_free_cmn+0xfd0/0xfd0 [ 65.699237] ? cred_has_capability+0x1a0/0x3d0 [ 65.703787] oom_kill_process+0x86d/0x13d0 [ 65.707985] ? lock_downgrade+0x990/0x990 [ 65.712096] ? lock_release+0xa40/0xa40 [ 65.716041] ? lock_release+0xa40/0xa40 [ 65.719991] ? oom_evaluate_task+0x480/0x480 [ 65.724368] ? security_capable_noaudit+0x8b/0xc0 [ 65.729176] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 65.734243] ? has_capability+0x30/0x30 [ 65.738182] ? do_raw_spin_trylock+0x190/0x190 [ 65.742737] ? has_capability_noaudit+0x24/0x30 [ 65.747368] ? oom_badness+0xdf/0xb80 [ 65.751134] ? lock_downgrade+0x990/0x990 [ 65.755247] ? find_lock_task_mm+0x460/0x460 [ 65.759617] ? lock_release+0xa40/0xa40 [ 65.763565] ? out_of_memory+0xaa9/0x11d0 [ 65.767678] ? lock_downgrade+0x990/0x990 [ 65.771790] ? lock_release+0xa40/0xa40 [ 65.775728] ? lock_acquire+0x1d5/0x580 [ 65.779670] ? blocking_notifier_call_chain+0x112/0x190 [ 65.784996] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 65.789975] ? srcu_init_notifier_head+0x80/0x80 [ 65.794699] ? oom_evaluate_task+0x284/0x480 [ 65.799073] out_of_memory+0x7dc/0x11d0 [ 65.803014] ? schedule_timeout+0xe0/0x250 [ 65.807233] ? oom_killer_disable+0x310/0x310 [ 65.811692] ? mutex_trylock+0x23a/0x2d0 [ 65.815719] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 65.821137] ? find_next_bit+0x27/0x30 [ 65.824990] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 65.829812] ? warn_alloc+0x2f0/0x2f0 [ 65.833578] ? lock_downgrade+0x990/0x990 [ 65.837690] ? cpuacct_charge+0x2fd/0x5b0 [ 65.841802] ? lock_release+0xa40/0xa40 [ 65.845742] ? in_lock_functions+0x20/0x20 [ 65.849943] ? update_curr+0x30c/0x800 [ 65.853798] ? mutex_spin_on_owner+0x446/0xb50 [ 65.858351] ? lock_acquire+0x1d5/0x580 [ 65.862295] ? osq_lock+0xed0/0xed0 [ 65.865893] ? check_same_owner+0x320/0x320 [ 65.870177] ? lock_release+0xa40/0xa40 [ 65.874116] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 65.879446] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 65.884601] ? __mutex_lock+0x113b/0x1a80 [ 65.888714] ? lock_acquire+0x1d5/0x580 [ 65.892653] ? lock_acquire+0x1d5/0x580 [ 65.896594] ? fs_reclaim_acquire+0x20/0x20 [ 65.900879] ? lock_downgrade+0x990/0x990 [ 65.904994] ? check_same_owner+0x320/0x320 [ 65.909286] ? __might_sleep+0x95/0x190 [ 65.913225] __alloc_pages_nodemask+0x9fb/0xd80 [ 65.917857] ? split_page+0x7e0/0x7e0 [ 65.921623] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 65.926603] ? dequeue_task_fair+0x147d/0x39e0 [ 65.931155] ? wait_for_completion+0x770/0x770 [ 65.935702] ? lock_acquire+0x1d5/0x580 [ 65.939641] ? pcpu_balance_workfn+0xd4a/0x1520 [ 65.944283] ? find_next_bit+0x27/0x30 [ 65.948136] pcpu_populate_chunk+0x1b3/0x880 [ 65.952519] pcpu_balance_workfn+0xf3e/0x1520 [ 65.956977] ? delayed_work_timer_fn+0x90/0x90 [ 65.961522] ? retint_kernel+0x10/0x10 [ 65.965380] ? pcpu_create_chunk+0x900/0x900 [ 65.969751] ? gc_worker+0x8e2/0xde0 [ 65.973438] ? lock_acquire+0x1d5/0x580 [ 65.977381] ? lock_acquire+0x1d5/0x580 [ 65.981319] ? process_one_work+0xb32/0x1bc0 [ 65.985694] ? switch_mm_irqs_off+0x8e1/0x1380 [ 65.990244] ? lock_release+0xa40/0xa40 [ 65.994182] ? finish_task_switch+0x1d3/0x740 [ 65.998641] ? do_raw_spin_trylock+0x190/0x190 [ 66.003189] ? rcu_sched_qs+0xe/0x140 [ 66.006958] process_one_work+0xbf0/0x1bc0 [ 66.011156] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 66.016315] ? pwq_dec_nr_in_flight+0x450/0x450 [ 66.020949] ? preempt_notifier_dec+0x20/0x20 [ 66.025405] ? sched_clock_cpu+0x1b/0x170 [ 66.029521] ? __schedule+0x8f3/0x2060 [ 66.033380] ? check_noncircular+0x20/0x20 [ 66.037577] ? account_entity_enqueue+0x3c8/0x6e0 [ 66.042387] ? check_noncircular+0x20/0x20 [ 66.046599] ? lock_acquire+0x1d5/0x580 [ 66.050538] ? lock_acquire+0x1d5/0x580 [ 66.054474] ? worker_thread+0x4a3/0x1990 [ 66.058584] ? lock_downgrade+0x990/0x990 [ 66.062697] ? lock_release+0xa40/0xa40 [ 66.066636] ? worker_pool_assign_id+0x1b0/0x1b0 [ 66.071359] ? do_raw_spin_trylock+0x190/0x190 [ 66.075910] worker_thread+0x223/0x1990 [ 66.079857] ? process_one_work+0x1bc0/0x1bc0 [ 66.084324] ? _raw_spin_unlock_irq+0x27/0x70 [ 66.088785] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 66.093765] ? trace_hardirqs_on+0xd/0x10 [ 66.097877] ? _raw_spin_unlock_irq+0x27/0x70 [ 66.102338] ? finish_task_switch+0x1d3/0x740 [ 66.106798] ? finish_task_switch+0x1aa/0x740 [ 66.111259] ? preempt_notifier_dec+0x20/0x20 [ 66.115724] ? __schedule+0x8f3/0x2060 [ 66.119588] ? find_held_lock+0x35/0x1d0 [ 66.123618] ? find_held_lock+0x35/0x1d0 [ 66.127652] ? complete+0x62/0x80 [ 66.131077] ? __schedule+0x2060/0x2060 [ 66.135015] ? do_wait_intr+0x3e0/0x3e0 [ 66.138958] ? __lockdep_init_map+0xe4/0x650 [ 66.143333] ? do_raw_spin_trylock+0x190/0x190 [ 66.147881] ? lockdep_init_map+0x9/0x10 [ 66.151909] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 66.156979] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 66.161958] ? trace_hardirqs_on+0xd/0x10 [ 66.166071] ? __kthread_parkme+0x175/0x240 [ 66.170358] kthread+0x35e/0x430 [ 66.173689] ? process_one_work+0x1bc0/0x1bc0 [ 66.178148] ? kthread_create_on_node+0x100/0x100 [ 66.182957] ret_from_fork+0x2a/0x40 [ 66.186691] Mem-Info: [ 66.189206] active_anon:2936 inactive_anon:32 isolated_anon:0 [ 66.189206] active_file:24 inactive_file:0 isolated_file:0 [ 66.189206] unevictable:0 dirty:0 writeback:0 unstable:0 [ 66.189206] slab_reclaimable:6024 slab_unreclaimable:82047 [ 66.189206] mapped:10 shmem:39 pagetables:1503 bounce:0 [ 66.189206] free:24356 free_pcp:233 free_cma:0 [ 66.221552] Node 0 active_anon:11744kB inactive_anon:128kB active_file:196kB inactive_file:76kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:140kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 66.248378] 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 [ 66.274612] lowmem_reserve[]: 0 2884 6397 6397 [ 66.279288] Node 0 DMA32 free:44320kB min:30396kB low:37992kB high:45588kB active_anon:1336kB inactive_anon:4kB active_file:216kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:544kB local_pcp:544kB free_cma:0kB [ 66.307952] lowmem_reserve[]: 0 0 3513 3513 [ 66.312386] Node 0 Normal free:37196kB min:37020kB low:46272kB high:55524kB active_anon:10408kB inactive_anon:124kB active_file:36kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11520kB pagetables:4664kB bounce:0kB free_pcp:620kB local_pcp:388kB free_cma:0kB [ 66.341394] lowmem_reserve[]: 0 0 0 0 [ 66.345273] 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 [ 66.358925] Node 0 DMA32: 18*4kB (UM) 53*8kB (UME) 47*16kB (UME) 24*32kB (UME) 13*64kB (ME) 4*128kB (ME) 4*256kB (UM) 2*512kB (ME) 2*1024kB (ME) 2*2048kB (UE) 8*4096kB (M) = 44320kB [ 66.375371] Node 0 Normal: 480*4kB (M) 513*8kB (ME) 329*16kB (M) 185*32kB (UM) 120*64kB (UM) 45*128kB (M) 12*256kB (M) 2*512kB (ME) 2*1024kB (UM) 0*2048kB 0*4096kB = 36792kB [ 66.391156] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 66.399727] 91 total pagecache pages [ 66.403419] 0 pages in swap cache [ 66.406846] Swap cache stats: add 0, delete 0, find 0/0 [ 66.412182] Free swap = 0kB [ 66.415172] Total swap = 0kB [ 66.418163] 1965979 pages RAM [ 66.421240] 0 pages HighMem/MovableOnly [ 66.425185] 323598 pages reserved [ 66.428615] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 66.437269] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 66.446000] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 66.454744] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 66.463472] [ 2790] 0 2790 2493 574 9 3 0 0 dhclient [ 66.472463] [ 2926] 0 2926 30649 221 24 3 0 0 rsyslogd [ 66.481454] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 66.490095] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 66.498747] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 66.507494] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 66.516227] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 66.524958] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 66.533691] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 66.542425] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 66.551156] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 66.559883] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 66.568521] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 66.578119] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 66.587713] [ 3039] 0 3039 356826 373 178 4 0 0 syzkaller248416 [ 66.597309] [ 3042] 0 3042 455178 0 226 5 0 0 syzkaller248416 [ 66.606908] [ 3045] 0 3045 459276 0 228 5 0 0 syzkaller248416 [ 66.616503] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 66.626095] [ 3049] 0 3049 358875 376 179 4 0 0 syzkaller248416 [ 66.635687] Out of memory: Kill process 2790 (dhclient) score 0 or sacrifice child [ 66.643384] Killed process 2790 (dhclient) total-vm:9972kB, anon-rss:2296kB, file-rss:0kB, shmem-rss:0kB [ 66.971918] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 66.985150] kworker/0:2 cpuset=/ mems_allowed=0 [ 66.989818] CPU: 0 PID: 1363 Comm: kworker/0:2 Not tainted 4.14.0-rc7+ #114 [ 66.996886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.006212] Workqueue: events pcpu_balance_workfn [ 67.011015] Call Trace: [ 67.013574] dump_stack+0x194/0x257 [ 67.017167] ? arch_local_irq_restore+0x53/0x53 [ 67.021804] dump_header+0x234/0xa0e [ 67.025482] ? task_will_free_mem+0x252/0xaa0 [ 67.029942] ? pagefault_out_of_memory+0x152/0x152 [ 67.034836] ? lock_acquire+0x1d5/0x580 [ 67.038773] ? ___ratelimit+0x30d/0x630 [ 67.042710] ? lock_downgrade+0x990/0x990 [ 67.046819] ? avc_has_perm_noaudit+0x37e/0x520 [ 67.051454] ? lock_release+0xa40/0xa40 [ 67.055400] ? do_raw_spin_trylock+0x190/0x190 [ 67.059946] ? lock_downgrade+0x990/0x990 [ 67.064057] ? trace_hardirqs_on+0xd/0x10 [ 67.068171] ? ___ratelimit+0x95/0x630 [ 67.072021] ? idr_get_free_cmn+0xfd0/0xfd0 [ 67.076306] ? cred_has_capability+0x1a0/0x3d0 [ 67.080853] oom_kill_process+0x86d/0x13d0 [ 67.085047] ? lock_downgrade+0x990/0x990 [ 67.089155] ? lock_release+0xa40/0xa40 [ 67.093092] ? lock_release+0xa40/0xa40 [ 67.097033] ? oom_evaluate_task+0x480/0x480 [ 67.101407] ? security_capable_noaudit+0x8b/0xc0 [ 67.106219] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 67.111284] ? has_capability+0x30/0x30 [ 67.115221] ? do_raw_spin_trylock+0x190/0x190 [ 67.119771] ? has_capability_noaudit+0x24/0x30 [ 67.124403] ? oom_badness+0xdf/0xb80 [ 67.128168] ? lock_downgrade+0x990/0x990 [ 67.132278] ? find_lock_task_mm+0x460/0x460 [ 67.136649] ? lock_release+0xa40/0xa40 [ 67.140595] ? out_of_memory+0xaa9/0x11d0 [ 67.144706] ? lock_downgrade+0x990/0x990 [ 67.148817] ? lock_release+0xa40/0xa40 [ 67.152754] ? lock_acquire+0x1d5/0x580 [ 67.156690] ? blocking_notifier_call_chain+0x112/0x190 [ 67.162014] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 67.166993] ? srcu_init_notifier_head+0x80/0x80 [ 67.171714] ? oom_evaluate_task+0x284/0x480 [ 67.176100] out_of_memory+0x7dc/0x11d0 [ 67.180041] ? oom_killer_disable+0x310/0x310 [ 67.184498] ? mutex_trylock+0x23a/0x2d0 [ 67.188523] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 67.193937] ? find_next_bit+0x27/0x30 [ 67.197789] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 67.202611] ? warn_alloc+0x2f0/0x2f0 [ 67.206375] ? lock_downgrade+0x990/0x990 [ 67.210489] ? lock_release+0xa40/0xa40 [ 67.214425] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 67.219581] ? in_lock_functions+0x20/0x20 [ 67.223782] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 67.228939] ? lock_acquire+0x1d5/0x580 [ 67.232874] ? __mutex_lock+0x2fd/0x1a80 [ 67.236896] ? osq_lock+0xed0/0xed0 [ 67.240491] ? check_same_owner+0x320/0x320 [ 67.244774] ? lock_release+0xa40/0xa40 [ 67.248709] ? lock_release+0xa40/0xa40 [ 67.252649] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 67.257977] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 67.263131] ? __mutex_lock+0x113b/0x1a80 [ 67.267242] ? lock_acquire+0x1d5/0x580 [ 67.271178] ? lock_acquire+0x1d5/0x580 [ 67.275116] ? fs_reclaim_acquire+0x20/0x20 [ 67.279400] ? lock_downgrade+0x990/0x990 [ 67.283515] ? check_same_owner+0x320/0x320 [ 67.287803] ? __might_sleep+0x95/0x190 [ 67.291741] __alloc_pages_nodemask+0x9fb/0xd80 [ 67.296377] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 67.301356] ? dequeue_task_fair+0x147d/0x39e0 [ 67.305909] ? wait_for_completion+0x770/0x770 [ 67.310453] ? lock_acquire+0x1d5/0x580 [ 67.314390] ? pcpu_balance_workfn+0xd4a/0x1520 [ 67.319026] ? find_next_bit+0x27/0x30 [ 67.322879] pcpu_populate_chunk+0x1b3/0x880 [ 67.327256] pcpu_balance_workfn+0xf3e/0x1520 [ 67.331714] ? delayed_work_timer_fn+0x90/0x90 [ 67.336262] ? rcu_note_context_switch+0x710/0x710 [ 67.341165] ? pcpu_create_chunk+0x900/0x900 [ 67.345550] ? wait_for_completion+0x770/0x770 [ 67.350092] ? lock_acquire+0x1d5/0x580 [ 67.354037] ? lock_acquire+0x1d5/0x580 [ 67.357972] ? lock_acquire+0x1d5/0x580 [ 67.361910] ? process_one_work+0xb32/0x1bc0 [ 67.366283] ? lock_release+0xa40/0xa40 [ 67.370219] ? finish_task_switch+0x1d3/0x740 [ 67.374678] ? do_raw_spin_trylock+0x190/0x190 [ 67.379224] ? rcu_sched_qs+0xe/0x140 [ 67.382991] process_one_work+0xbf0/0x1bc0 [ 67.387187] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 67.392344] ? pwq_dec_nr_in_flight+0x450/0x450 [ 67.396978] ? preempt_notifier_dec+0x20/0x20 [ 67.401435] ? sched_clock_cpu+0x1b/0x170 [ 67.405551] ? __schedule+0x8f3/0x2060 [ 67.409408] ? check_noncircular+0x20/0x20 [ 67.413605] ? account_entity_enqueue+0x3c8/0x6e0 [ 67.418421] ? check_noncircular+0x20/0x20 [ 67.422630] ? lock_acquire+0x1d5/0x580 [ 67.426567] ? lock_acquire+0x1d5/0x580 [ 67.430502] ? worker_thread+0x4a3/0x1990 [ 67.434614] ? lock_downgrade+0x990/0x990 [ 67.438725] ? lock_release+0xa40/0xa40 [ 67.442662] ? worker_pool_assign_id+0x1b0/0x1b0 [ 67.447379] ? do_raw_spin_trylock+0x190/0x190 [ 67.451931] worker_thread+0x223/0x1990 [ 67.455882] ? process_one_work+0x1bc0/0x1bc0 [ 67.460342] ? _raw_spin_unlock_irq+0x27/0x70 [ 67.464801] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 67.469780] ? trace_hardirqs_on+0xd/0x10 [ 67.473892] ? _raw_spin_unlock_irq+0x27/0x70 [ 67.478352] ? finish_task_switch+0x1d3/0x740 [ 67.482812] ? finish_task_switch+0x1aa/0x740 [ 67.487271] ? preempt_notifier_dec+0x20/0x20 [ 67.491732] ? __schedule+0x8f3/0x2060 [ 67.495592] ? find_held_lock+0x35/0x1d0 [ 67.499618] ? find_held_lock+0x35/0x1d0 [ 67.503646] ? complete+0x62/0x80 [ 67.507066] ? __schedule+0x2060/0x2060 [ 67.511008] ? do_wait_intr+0x3e0/0x3e0 [ 67.514945] ? __lockdep_init_map+0xe4/0x650 [ 67.519316] ? do_raw_spin_trylock+0x190/0x190 [ 67.523860] ? lockdep_init_map+0x9/0x10 [ 67.527889] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 67.532953] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 67.537933] ? trace_hardirqs_on+0xd/0x10 [ 67.542050] ? __kthread_parkme+0x175/0x240 [ 67.546339] kthread+0x35e/0x430 [ 67.549668] ? process_one_work+0x1bc0/0x1bc0 [ 67.554126] ? kthread_create_on_node+0x100/0x100 [ 67.558933] ret_from_fork+0x2a/0x40 [ 67.562699] Mem-Info: [ 67.565212] active_anon:2321 inactive_anon:32 isolated_anon:0 [ 67.565212] active_file:32 inactive_file:29 isolated_file:0 [ 67.565212] unevictable:0 dirty:20 writeback:2 unstable:0 [ 67.565212] slab_reclaimable:6037 slab_unreclaimable:81768 [ 67.565212] mapped:2 shmem:39 pagetables:1494 bounce:0 [ 67.565212] free:24572 free_pcp:469 free_cma:0 [ 67.597614] Node 0 active_anon:9284kB inactive_anon:128kB active_file:88kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:80kB writeback:8kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 67.624354] 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 [ 67.650572] lowmem_reserve[]: 0 2884 6397 6397 [ 67.655244] Node 0 DMA32 free:44088kB min:30396kB low:37992kB high:45588kB active_anon:1336kB inactive_anon:4kB active_file:56kB inactive_file:60kB unevictable:0kB writepending:184kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:728kB local_pcp:172kB free_cma:0kB [ 67.684000] lowmem_reserve[]: 0 0 3513 3513 [ 67.688421] Node 0 Normal free:38160kB min:37020kB low:46272kB high:55524kB active_anon:7948kB inactive_anon:124kB active_file:72kB inactive_file:160kB unevictable:0kB writepending:4kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11488kB pagetables:4628kB bounce:0kB free_pcp:1184kB local_pcp:568kB free_cma:0kB [ 67.717530] lowmem_reserve[]: 0 0 0 0 [ 67.721410] 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 [ 67.735076] Node 0 DMA32: 4*4kB (UE) 29*8kB (UM) 48*16kB (UM) 24*32kB (UME) 13*64kB (UME) 4*128kB (ME) 4*256kB (UM) 2*512kB (ME) 2*1024kB (ME) 2*2048kB (UE) 8*4096kB (M) = 44088kB [ 67.751359] Node 0 Normal: 418*4kB (UME) 568*8kB (UME) 354*16kB (UM) 185*32kB (UME) 120*64kB (UME) 45*128kB (UM) 13*256kB (ME) 1*512kB (M) 3*1024kB (UM) 0*2048kB 0*4096kB = 38152kB [ 67.767715] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 67.776374] 133 total pagecache pages [ 67.780255] 0 pages in swap cache [ 67.783789] Swap cache stats: add 0, delete 0, find 0/0 [ 67.789203] Free swap = 0kB [ 67.792351] Total swap = 0kB [ 67.795426] 1965979 pages RAM [ 67.798610] 0 pages HighMem/MovableOnly [ 67.802660] 323598 pages reserved [ 67.806161] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 67.814892] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 67.823726] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 67.832483] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 67.841215] [ 2926] 0 2926 30649 194 24 3 0 0 rsyslogd [ 67.850204] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 67.858848] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 67.867491] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 67.876222] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 67.884950] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 67.893678] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 67.902408] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 67.911138] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 67.919866] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 67.928597] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 67.937239] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 67.946835] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 67.956431] [ 3039] 0 3039 356826 373 178 4 0 0 syzkaller248416 [ 67.966028] [ 3042] 0 3042 455178 0 226 5 0 0 syzkaller248416 [ 67.975634] [ 3045] 0 3045 459276 0 228 5 0 0 syzkaller248416 [ 67.985233] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 67.994828] [ 3049] 0 3049 358875 376 179 4 0 0 syzkaller248416 [ 68.004422] Out of memory: Kill process 3049 (syzkaller248416) score 0 or sacrifice child [ 68.012908] Killed process 3049 (syzkaller248416) total-vm:1435500kB, anon-rss:1504kB, file-rss:0kB, shmem-rss:0kB [ 68.026586] oom_reaper: reaped process 3049 (syzkaller248416), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 68.239721] kworker/1:0 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 68.252770] kworker/1:0 cpuset=/ mems_allowed=0 [ 68.257442] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.14.0-rc7+ #114 [ 68.264340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.273667] Workqueue: events pcpu_balance_workfn [ 68.278475] Call Trace: [ 68.281035] dump_stack+0x194/0x257 [ 68.284631] ? arch_local_irq_restore+0x53/0x53 [ 68.289269] dump_header+0x234/0xa0e [ 68.292947] ? task_will_free_mem+0x252/0xaa0 [ 68.297409] ? pagefault_out_of_memory+0x152/0x152 [ 68.302305] ? lock_acquire+0x1d5/0x580 [ 68.306245] ? ___ratelimit+0x30d/0x630 [ 68.310182] ? lock_downgrade+0x990/0x990 [ 68.314300] ? avc_has_perm_noaudit+0x37e/0x520 [ 68.318938] ? lock_release+0xa40/0xa40 [ 68.322878] ? do_raw_spin_trylock+0x190/0x190 [ 68.327424] ? lock_downgrade+0x990/0x990 [ 68.331536] ? trace_hardirqs_on+0xd/0x10 [ 68.335650] ? ___ratelimit+0x95/0x630 [ 68.339502] ? idr_get_free_cmn+0xfd0/0xfd0 [ 68.343788] ? find_lock_task_mm+0x2fe/0x460 [ 68.348167] oom_kill_process+0x86d/0x13d0 [ 68.352374] ? lock_release+0xa40/0xa40 [ 68.356309] ? lock_release+0xa40/0xa40 [ 68.360248] ? do_raw_spin_trylock+0x190/0x190 [ 68.364795] ? oom_evaluate_task+0x480/0x480 [ 68.369170] ? find_lock_task_mm+0x23b/0x460 [ 68.373543] ? task_will_free_mem+0xaa0/0xaa0 [ 68.378008] ? has_capability+0x30/0x30 [ 68.381949] ? do_raw_spin_trylock+0x190/0x190 [ 68.386508] ? lock_acquire+0x1d5/0x580 [ 68.390457] ? lock_acquire+0x1d5/0x580 [ 68.394397] ? oom_unkillable_task+0x394/0x4c0 [ 68.398945] ? lock_downgrade+0x990/0x990 [ 68.403069] ? lock_release+0xa40/0xa40 [ 68.407022] ? oom_unkillable_task+0x33d/0x4c0 [ 68.411572] ? out_of_memory+0xaa9/0x11d0 [ 68.415684] ? lock_downgrade+0x990/0x990 [ 68.419795] ? lock_release+0xa40/0xa40 [ 68.423740] ? lock_acquire+0x1d5/0x580 [ 68.427681] ? blocking_notifier_call_chain+0x112/0x190 [ 68.433012] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 68.437997] ? srcu_init_notifier_head+0x80/0x80 [ 68.442749] ? oom_evaluate_task+0x284/0x480 [ 68.447129] out_of_memory+0x7dc/0x11d0 [ 68.451071] ? oom_killer_disable+0x310/0x310 [ 68.455532] ? mutex_trylock+0x23a/0x2d0 [ 68.459582] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 68.465006] ? find_next_bit+0x27/0x30 [ 68.468867] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 68.473689] ? warn_alloc+0x2f0/0x2f0 [ 68.477454] ? lock_downgrade+0x990/0x990 [ 68.481568] ? lock_release+0xa40/0xa40 [ 68.485507] ? retint_kernel+0x10/0x10 [ 68.489357] ? in_lock_functions+0x20/0x20 [ 68.493566] ? mutex_spin_on_owner+0x446/0xb50 [ 68.498113] ? lock_acquire+0x1d5/0x580 [ 68.502050] ? osq_lock+0xed0/0xed0 [ 68.505646] ? check_same_owner+0x320/0x320 [ 68.509935] ? lock_release+0xa40/0xa40 [ 68.513880] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 68.519211] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 68.524370] ? __mutex_lock+0x113b/0x1a80 [ 68.528484] ? lock_acquire+0x1d5/0x580 [ 68.532422] ? lock_acquire+0x1d5/0x580 [ 68.536360] ? fs_reclaim_acquire+0x20/0x20 [ 68.540643] ? lock_downgrade+0x990/0x990 [ 68.544762] ? check_same_owner+0x320/0x320 [ 68.549053] ? __might_sleep+0x95/0x190 [ 68.552994] __alloc_pages_nodemask+0x9fb/0xd80 [ 68.557633] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 68.562967] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 68.567952] ? dequeue_task_fair+0x147d/0x39e0 [ 68.572510] ? wait_for_completion+0x770/0x770 [ 68.577055] ? lock_acquire+0x1d5/0x580 [ 68.580995] ? pcpu_balance_workfn+0xd4a/0x1520 [ 68.585645] ? find_next_bit+0x27/0x30 [ 68.589502] pcpu_populate_chunk+0x1b3/0x880 [ 68.593883] pcpu_balance_workfn+0xf3e/0x1520 [ 68.598344] ? msleep_interruptible+0x150/0x150 [ 68.602982] ? _find_next_bit+0xee/0x120 [ 68.607011] ? _find_next_bit+0xee/0x120 [ 68.611048] ? pcpu_create_chunk+0x900/0x900 [ 68.615419] ? refresh_cpu_vm_stats+0x4b0/0x640 [ 68.620059] ? lock_acquire+0x1d5/0x580 [ 68.623996] ? lock_acquire+0x1d5/0x580 [ 68.627948] ? process_one_work+0xb32/0x1bc0 [ 68.632333] ? switch_mm_irqs_off+0x8e1/0x1380 [ 68.636883] ? lock_release+0xa40/0xa40 [ 68.640824] ? finish_task_switch+0x1d3/0x740 [ 68.645287] ? do_raw_spin_trylock+0x190/0x190 [ 68.649840] ? rcu_sched_qs+0xe/0x140 [ 68.653613] process_one_work+0xbf0/0x1bc0 [ 68.657815] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 68.662974] ? pwq_dec_nr_in_flight+0x450/0x450 [ 68.667610] ? preempt_notifier_dec+0x20/0x20 [ 68.672071] ? sched_clock_cpu+0x1b/0x170 [ 68.676188] ? __schedule+0x8f3/0x2060 [ 68.680045] ? check_noncircular+0x20/0x20 [ 68.684245] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.688967] ? retint_kernel+0x10/0x10 [ 68.692824] ? lock_acquire+0x1d5/0x580 [ 68.696761] ? lock_acquire+0x1d5/0x580 [ 68.700700] ? worker_thread+0x4a3/0x1990 [ 68.704822] ? lock_downgrade+0x990/0x990 [ 68.708947] ? lock_release+0xa40/0xa40 [ 68.712887] ? worker_pool_assign_id+0x1b0/0x1b0 [ 68.717608] ? do_raw_spin_trylock+0x190/0x190 [ 68.722158] worker_thread+0x223/0x1990 [ 68.726106] ? process_one_work+0x1bc0/0x1bc0 [ 68.730574] ? _raw_spin_unlock_irq+0x27/0x70 [ 68.735037] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 68.740023] ? trace_hardirqs_on+0xd/0x10 [ 68.744140] ? finish_task_switch+0x1d3/0x740 [ 68.748608] ? finish_task_switch+0x1aa/0x740 [ 68.753068] ? preempt_notifier_dec+0x20/0x20 [ 68.757533] ? __schedule+0x8f3/0x2060 [ 68.761396] ? find_held_lock+0x35/0x1d0 [ 68.765426] ? find_held_lock+0x35/0x1d0 [ 68.769455] ? complete+0x62/0x80 [ 68.772878] ? __schedule+0x2060/0x2060 [ 68.776817] ? do_wait_intr+0x3e0/0x3e0 [ 68.780754] ? __lockdep_init_map+0xe4/0x650 [ 68.785127] ? do_raw_spin_trylock+0x190/0x190 [ 68.789671] ? lockdep_init_map+0x9/0x10 [ 68.793695] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 68.798760] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 68.803740] ? trace_hardirqs_on+0xd/0x10 [ 68.807853] ? __kthread_parkme+0x175/0x240 [ 68.812139] kthread+0x35e/0x430 [ 68.815470] ? process_one_work+0x1bc0/0x1bc0 [ 68.819942] ? kthread_create_on_node+0x100/0x100 [ 68.824754] ret_from_fork+0x2a/0x40 [ 68.828477] Mem-Info: [ 68.830880] active_anon:1972 inactive_anon:32 isolated_anon:0 [ 68.830880] active_file:16 inactive_file:44 isolated_file:0 [ 68.830880] unevictable:0 dirty:0 writeback:0 unstable:0 [ 68.830880] slab_reclaimable:6047 slab_unreclaimable:81812 [ 68.830880] mapped:3 shmem:39 pagetables:1494 bounce:0 [ 68.830880] free:24276 free_pcp:572 free_cma:0 [ 68.863063] Node 0 active_anon:7888kB inactive_anon:128kB active_file:100kB inactive_file:184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:116kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 68.889760] 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 [ 68.915850] lowmem_reserve[]: 0 2884 6397 6397 [ 68.920409] Node 0 DMA32 free:44280kB min:30396kB low:37992kB high:45588kB active_anon:1336kB inactive_anon:4kB active_file:36kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:676kB local_pcp:676kB free_cma:0kB [ 68.948857] lowmem_reserve[]: 0 0 3513 3513 [ 68.953172] Node 0 Normal free:37660kB min:37020kB low:46272kB high:55524kB active_anon:6944kB inactive_anon:124kB active_file:64kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11488kB pagetables:4628kB bounce:0kB free_pcp:832kB local_pcp:832kB free_cma:0kB [ 68.982044] lowmem_reserve[]: 0 0 0 0 [ 68.985824] 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 [ 68.999356] Node 0 DMA32: 24*4kB (UM) 58*8kB (UME) 46*16kB (UM) 25*32kB (UME) 13*64kB (UME) 3*128kB (ME) 3*256kB (UM) 3*512kB (ME) 2*1024kB (ME) 2*2048kB (UE) 8*4096kB (M) = 44528kB [ 69.015669] Node 0 Normal: 621*4kB (UM) 489*8kB (UME) 328*16kB (UME) 193*32kB (UME) 120*64kB (UM) 47*128kB (UME) 14*256kB (UME) 1*512kB (M) 2*1024kB (M) 0*2048kB 0*4096kB = 37660kB [ 69.031898] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 69.040457] 110 total pagecache pages [ 69.044234] 0 pages in swap cache [ 69.047662] Swap cache stats: add 0, delete 0, find 0/0 [ 69.052997] Free swap = 0kB [ 69.055990] Total swap = 0kB [ 69.058984] 1965979 pages RAM [ 69.062063] 0 pages HighMem/MovableOnly [ 69.066017] 323598 pages reserved [ 69.069448] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 69.078100] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 69.086825] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 69.095551] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 69.104464] [ 2926] 0 2926 30649 205 24 3 0 0 rsyslogd [ 69.113461] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 69.122099] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 69.130737] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 69.139470] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 69.148194] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 69.156928] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 69.165663] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 69.174407] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 69.183147] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 69.191893] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 69.200543] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 69.210142] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 69.219750] [ 3039] 0 3039 356826 373 178 4 0 0 syzkaller248416 [ 69.229369] [ 3042] 0 3042 455178 0 226 5 0 0 syzkaller248416 [ 69.238962] [ 3045] 0 3045 459276 0 228 5 0 0 syzkaller248416 [ 69.248557] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 69.258148] [ 3049] 0 3049 358875 0 179 4 0 0 syzkaller248416 [ 69.267737] Out of memory: Kill process 3039 (syzkaller248416) score 0 or sacrifice child [ 69.276093] Killed process 3039 (syzkaller248416) total-vm:1427304kB, anon-rss:1492kB, file-rss:0kB, shmem-rss:0kB [ 69.290291] oom_reaper: reaped process 3039 (syzkaller248416), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 69.557290] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 69.570315] kworker/0:2 cpuset=/ mems_allowed=0 [ 69.574979] CPU: 0 PID: 1363 Comm: kworker/0:2 Not tainted 4.14.0-rc7+ #114 [ 69.582049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.591389] Workqueue: events pcpu_balance_workfn [ 69.596206] Call Trace: [ 69.598772] dump_stack+0x194/0x257 [ 69.602383] ? arch_local_irq_restore+0x53/0x53 [ 69.607039] dump_header+0x234/0xa0e [ 69.610733] ? task_will_free_mem+0x252/0xaa0 [ 69.615209] ? pagefault_out_of_memory+0x152/0x152 [ 69.620118] ? lock_acquire+0x1d5/0x580 [ 69.624069] ? ___ratelimit+0x30d/0x630 [ 69.628017] ? lock_downgrade+0x990/0x990 [ 69.632140] ? avc_has_perm_noaudit+0x37e/0x520 [ 69.636788] ? lock_release+0xa40/0xa40 [ 69.640743] ? do_raw_spin_trylock+0x190/0x190 [ 69.645302] ? lock_downgrade+0x990/0x990 [ 69.649426] ? trace_hardirqs_on+0xd/0x10 [ 69.653551] ? ___ratelimit+0x95/0x630 [ 69.657415] ? idr_get_free_cmn+0xfd0/0xfd0 [ 69.661713] ? find_lock_task_mm+0x2fe/0x460 [ 69.666106] oom_kill_process+0x86d/0x13d0 [ 69.670316] ? lock_release+0xa40/0xa40 [ 69.674264] ? lock_release+0xa40/0xa40 [ 69.678213] ? do_raw_spin_trylock+0x190/0x190 [ 69.682777] ? oom_evaluate_task+0x480/0x480 [ 69.687163] ? find_lock_task_mm+0x23b/0x460 [ 69.691549] ? task_will_free_mem+0xaa0/0xaa0 [ 69.696023] ? has_capability+0x30/0x30 [ 69.699973] ? do_raw_spin_trylock+0x190/0x190 [ 69.704542] ? lock_acquire+0x1d5/0x580 [ 69.708489] ? lock_acquire+0x1d5/0x580 [ 69.712436] ? oom_unkillable_task+0x394/0x4c0 [ 69.716994] ? lock_downgrade+0x990/0x990 [ 69.721118] ? lock_release+0xa40/0xa40 [ 69.725083] ? oom_unkillable_task+0x33d/0x4c0 [ 69.729641] ? out_of_memory+0xaa9/0x11d0 [ 69.733767] ? lock_downgrade+0x990/0x990 [ 69.737895] ? lock_release+0xa40/0xa40 [ 69.741842] ? lock_acquire+0x1d5/0x580 [ 69.745791] ? blocking_notifier_call_chain+0x112/0x190 [ 69.751128] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 69.756121] ? srcu_init_notifier_head+0x80/0x80 [ 69.760855] ? oom_evaluate_task+0x284/0x480 [ 69.765244] out_of_memory+0x7dc/0x11d0 [ 69.769193] ? trace_hardirqs_on+0xd/0x10 [ 69.774019] ? oom_killer_disable+0x310/0x310 [ 69.778484] ? mutex_trylock+0x23a/0x2d0 [ 69.782512] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 69.787926] ? check_same_owner+0x320/0x320 [ 69.792217] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 69.797041] ? warn_alloc+0x2f0/0x2f0 [ 69.800807] ? lock_downgrade+0x990/0x990 [ 69.804924] ? lock_release+0xa40/0xa40 [ 69.808864] ? __unwind_start+0x169/0x330 [ 69.812976] ? in_lock_functions+0x20/0x20 [ 69.817180] ? mutex_spin_on_owner+0x446/0xb50 [ 69.821727] ? lock_acquire+0x1d5/0x580 [ 69.825666] ? osq_lock+0xed0/0xed0 [ 69.829260] ? check_same_owner+0x320/0x320 [ 69.833543] ? lock_release+0xa40/0xa40 [ 69.837481] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 69.842809] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 69.847965] ? __mutex_lock+0x113b/0x1a80 [ 69.852077] ? lock_acquire+0x1d5/0x580 [ 69.856018] ? lock_acquire+0x1d5/0x580 [ 69.859957] ? fs_reclaim_acquire+0x20/0x20 [ 69.864243] ? lock_downgrade+0x990/0x990 [ 69.868359] ? check_same_owner+0x320/0x320 [ 69.872648] ? __might_sleep+0x95/0x190 [ 69.876587] __alloc_pages_nodemask+0x9fb/0xd80 [ 69.881223] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 69.886203] ? dequeue_task_fair+0x147d/0x39e0 [ 69.890760] ? wait_for_completion+0x770/0x770 [ 69.895305] ? lock_acquire+0x1d5/0x580 [ 69.899246] ? pcpu_balance_workfn+0xd4a/0x1520 [ 69.903881] ? find_next_bit+0x27/0x30 [ 69.907735] pcpu_populate_chunk+0x1b3/0x880 [ 69.912113] pcpu_balance_workfn+0xf3e/0x1520 [ 69.916571] ? delayed_work_timer_fn+0x90/0x90 [ 69.921122] ? rcu_note_context_switch+0x710/0x710 [ 69.926025] ? pcpu_create_chunk+0x900/0x900 [ 69.930399] ? gc_worker+0x8e2/0xde0 [ 69.934085] ? lock_acquire+0x1d5/0x580 [ 69.938024] ? lock_acquire+0x1d5/0x580 [ 69.941963] ? process_one_work+0xb32/0x1bc0 [ 69.946337] ? switch_mm_irqs_off+0x8e1/0x1380 [ 69.950884] ? lock_release+0xa40/0xa40 [ 69.954819] ? finish_task_switch+0x1d3/0x740 [ 69.959277] ? do_raw_spin_trylock+0x190/0x190 [ 69.963822] ? rcu_sched_qs+0xe/0x140 [ 69.967593] process_one_work+0xbf0/0x1bc0 [ 69.971789] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 69.976946] ? pwq_dec_nr_in_flight+0x450/0x450 [ 69.981578] ? preempt_notifier_dec+0x20/0x20 [ 69.986038] ? sched_clock_cpu+0x1b/0x170 [ 69.990156] ? __schedule+0x8f3/0x2060 [ 69.994021] ? check_noncircular+0x20/0x20 [ 69.998219] ? account_entity_enqueue+0x3c8/0x6e0 [ 70.003030] ? check_noncircular+0x20/0x20 [ 70.007236] ? lock_acquire+0x1d5/0x580 [ 70.011173] ? lock_acquire+0x1d5/0x580 [ 70.015111] ? worker_thread+0x4a3/0x1990 [ 70.019223] ? lock_downgrade+0x990/0x990 [ 70.023337] ? lock_release+0xa40/0xa40 [ 70.027273] ? worker_pool_assign_id+0x1b0/0x1b0 [ 70.031993] ? do_raw_spin_trylock+0x190/0x190 [ 70.036548] worker_thread+0x223/0x1990 [ 70.040495] ? process_one_work+0x1bc0/0x1bc0 [ 70.044955] ? _raw_spin_unlock_irq+0x27/0x70 [ 70.049415] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 70.054396] ? trace_hardirqs_on+0xd/0x10 [ 70.058506] ? _raw_spin_unlock_irq+0x27/0x70 [ 70.062963] ? finish_task_switch+0x1d3/0x740 [ 70.067422] ? finish_task_switch+0x1aa/0x740 [ 70.071881] ? preempt_notifier_dec+0x20/0x20 [ 70.076345] ? __schedule+0x8f3/0x2060 [ 70.080208] ? find_held_lock+0x35/0x1d0 [ 70.084241] ? find_held_lock+0x35/0x1d0 [ 70.088267] ? complete+0x62/0x80 [ 70.091687] ? __schedule+0x2060/0x2060 [ 70.095622] ? do_wait_intr+0x3e0/0x3e0 [ 70.099557] ? __lockdep_init_map+0xe4/0x650 [ 70.103932] ? do_raw_spin_trylock+0x190/0x190 [ 70.108477] ? lockdep_init_map+0x9/0x10 [ 70.112501] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 70.117567] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 70.122551] ? trace_hardirqs_on+0xd/0x10 [ 70.126664] ? __kthread_parkme+0x175/0x240 [ 70.130950] kthread+0x35e/0x430 [ 70.134281] ? process_one_work+0x1bc0/0x1bc0 [ 70.138739] ? kthread_create_on_node+0x100/0x100 [ 70.143547] ret_from_fork+0x2a/0x40 [ 70.147276] Mem-Info: [ 70.149683] active_anon:1579 inactive_anon:32 isolated_anon:0 [ 70.149683] active_file:20 inactive_file:12 isolated_file:0 [ 70.149683] unevictable:0 dirty:0 writeback:0 unstable:0 [ 70.149683] slab_reclaimable:6050 slab_unreclaimable:81854 [ 70.149683] mapped:2 shmem:39 pagetables:1494 bounce:0 [ 70.149683] free:24309 free_pcp:436 free_cma:0 [ 70.181878] Node 0 active_anon:6316kB inactive_anon:128kB active_file:80kB inactive_file:48kB 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? yes [ 70.208325] 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 [ 70.234437] lowmem_reserve[]: 0 2884 6397 6397 [ 70.239020] Node 0 DMA32 free:44336kB min:30396kB low:37992kB high:45588kB active_anon:532kB inactive_anon:4kB active_file:40kB inactive_file:40kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:668kB local_pcp:556kB free_cma:0kB [ 70.267392] lowmem_reserve[]: 0 0 3513 3513 [ 70.271710] Node 0 Normal free:36992kB min:37020kB low:46272kB high:55524kB active_anon:5784kB inactive_anon:124kB active_file:44kB inactive_file:4kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11488kB pagetables:4628kB bounce:0kB free_pcp:1076kB local_pcp:352kB free_cma:0kB [ 70.300516] lowmem_reserve[]: 0 0 0 0 [ 70.304319] 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 [ 70.318590] Node 0 DMA32: 70*4kB (M) 57*8kB (ME) 49*16kB (M) 24*32kB (ME) 13*64kB (ME) 4*128kB (UME) 3*256kB (M) 4*512kB (UME) 3*1024kB (UME) 1*2048kB (E) 8*4096kB (M) = 44336kB [ 70.334599] Node 0 Normal: 484*4kB (UME) 428*8kB (UM) 319*16kB (ME) 187*32kB (ME) 119*64kB (UME) 55*128kB (M) 13*256kB (ME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 0*4096kB = 36992kB [ 70.350606] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 70.359167] 71 total pagecache pages [ 70.362865] 0 pages in swap cache [ 70.366305] Swap cache stats: add 0, delete 0, find 0/0 [ 70.371653] Free swap = 0kB [ 70.374656] Total swap = 0kB [ 70.377659] 1965979 pages RAM [ 70.380746] 0 pages HighMem/MovableOnly [ 70.384706] 323598 pages reserved [ 70.388144] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 70.396815] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 70.405555] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 70.414299] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 70.423040] [ 2926] 0 2926 30649 206 24 3 0 0 rsyslogd [ 70.432043] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 70.440697] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 70.449353] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 70.458095] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 70.466839] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 70.475580] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 70.484322] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 70.493064] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 70.501804] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 70.510543] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 70.519199] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 70.528816] [ 3038] 0 3038 356826 371 178 4 0 0 syzkaller248416 [ 70.538425] [ 3039] 0 3039 356826 0 178 4 0 0 syzkaller248416 [ 70.548035] [ 3042] 0 3042 455178 0 226 5 0 0 syzkaller248416 [ 70.557644] [ 3045] 0 3045 459276 0 228 5 0 0 syzkaller248416 [ 70.567255] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 70.576863] [ 3049] 0 3049 358875 0 179 4 0 0 syzkaller248416 [ 70.586470] Out of memory: Kill process 3038 (syzkaller248416) score 0 or sacrifice child [ 70.594853] Killed process 3038 (syzkaller248416) total-vm:1427304kB, anon-rss:1484kB, file-rss:0kB, shmem-rss:0kB [ 70.608943] oom_reaper: reaped process 3038 (syzkaller248416), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 71.355862] kworker/0:2 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 71.369132] kworker/0:2 cpuset=/ mems_allowed=0 [ 71.373803] CPU: 0 PID: 1363 Comm: kworker/0:2 Not tainted 4.14.0-rc7+ #114 [ 71.380884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.390214] Workqueue: events pcpu_balance_workfn [ 71.395020] Call Trace: [ 71.397574] dump_stack+0x194/0x257 [ 71.401168] ? arch_local_irq_restore+0x53/0x53 [ 71.405805] dump_header+0x234/0xa0e [ 71.409484] ? task_will_free_mem+0x252/0xaa0 [ 71.413944] ? pagefault_out_of_memory+0x152/0x152 [ 71.418837] ? lock_acquire+0x1d5/0x580 [ 71.422774] ? ___ratelimit+0x30d/0x630 [ 71.426714] ? lock_downgrade+0x990/0x990 [ 71.430827] ? avc_has_perm_noaudit+0x37e/0x520 [ 71.435460] ? lock_release+0xa40/0xa40 [ 71.439400] ? do_raw_spin_trylock+0x190/0x190 [ 71.443946] ? lock_downgrade+0x990/0x990 [ 71.448061] ? trace_hardirqs_on+0xd/0x10 [ 71.452174] ? ___ratelimit+0x95/0x630 [ 71.456026] ? idr_get_free_cmn+0xfd0/0xfd0 [ 71.460311] ? find_lock_task_mm+0x2fe/0x460 [ 71.464687] oom_kill_process+0x86d/0x13d0 [ 71.468887] ? lock_release+0xa40/0xa40 [ 71.472825] ? lock_release+0xa40/0xa40 [ 71.476766] ? do_raw_spin_trylock+0x190/0x190 [ 71.481316] ? oom_evaluate_task+0x480/0x480 [ 71.485689] ? find_lock_task_mm+0x23b/0x460 [ 71.490061] ? task_will_free_mem+0xaa0/0xaa0 [ 71.494521] ? has_capability+0x30/0x30 [ 71.498462] ? do_raw_spin_trylock+0x190/0x190 [ 71.503017] ? lock_acquire+0x1d5/0x580 [ 71.506955] ? lock_acquire+0x1d5/0x580 [ 71.510891] ? oom_unkillable_task+0x394/0x4c0 [ 71.515437] ? lock_downgrade+0x990/0x990 [ 71.519548] ? lock_release+0xa40/0xa40 [ 71.523495] ? oom_unkillable_task+0x33d/0x4c0 [ 71.528039] ? out_of_memory+0xaa9/0x11d0 [ 71.532149] ? lock_downgrade+0x990/0x990 [ 71.536261] ? lock_release+0xa40/0xa40 [ 71.540198] ? lock_acquire+0x1d5/0x580 [ 71.544137] ? blocking_notifier_call_chain+0x112/0x190 [ 71.549465] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 71.554446] ? srcu_init_notifier_head+0x80/0x80 [ 71.559179] ? oom_evaluate_task+0x284/0x480 [ 71.563553] out_of_memory+0x7dc/0x11d0 [ 71.567495] ? oom_killer_disable+0x310/0x310 [ 71.571954] ? mutex_trylock+0x23a/0x2d0 [ 71.575980] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 71.581401] ? find_next_bit+0x27/0x30 [ 71.585254] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 71.590072] ? warn_alloc+0x2f0/0x2f0 [ 71.593839] ? lock_downgrade+0x990/0x990 [ 71.597951] ? lock_release+0xa40/0xa40 [ 71.601893] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 71.607046] ? in_lock_functions+0x20/0x20 [ 71.611246] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 71.616401] ? mutex_spin_on_owner+0x446/0xb50 [ 71.620947] ? lock_acquire+0x1d5/0x580 [ 71.624891] ? osq_lock+0xed0/0xed0 [ 71.628486] ? check_same_owner+0x320/0x320 [ 71.632769] ? lock_release+0xa40/0xa40 [ 71.636703] ? lock_release+0xa40/0xa40 [ 71.640644] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 71.645976] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 71.651131] ? __mutex_lock+0x113b/0x1a80 [ 71.655245] ? lock_acquire+0x1d5/0x580 [ 71.659179] ? lock_acquire+0x1d5/0x580 [ 71.663118] ? fs_reclaim_acquire+0x20/0x20 [ 71.667410] ? lock_downgrade+0x990/0x990 [ 71.671525] ? check_same_owner+0x320/0x320 [ 71.675814] ? __might_sleep+0x95/0x190 [ 71.679755] __alloc_pages_nodemask+0x9fb/0xd80 [ 71.684391] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 71.689372] ? dequeue_task_fair+0x147d/0x39e0 [ 71.693924] ? wait_for_completion+0x770/0x770 [ 71.698467] ? lock_acquire+0x1d5/0x580 [ 71.702405] ? pcpu_balance_workfn+0xd4a/0x1520 [ 71.707046] ? find_next_bit+0x27/0x30 [ 71.710899] pcpu_populate_chunk+0x1b3/0x880 [ 71.715279] pcpu_balance_workfn+0xf3e/0x1520 [ 71.719739] ? _xfer_secondary_pool+0x15c/0x5e0 [ 71.724375] ? rcu_note_context_switch+0x710/0x710 [ 71.729272] ? pcpu_create_chunk+0x900/0x900 [ 71.733648] ? wait_for_completion+0x770/0x770 [ 71.738200] ? lock_acquire+0x1d5/0x580 [ 71.742143] ? lock_acquire+0x1d5/0x580 [ 71.746081] ? lock_acquire+0x1d5/0x580 [ 71.750023] ? process_one_work+0xb32/0x1bc0 [ 71.754401] ? lock_release+0xa40/0xa40 [ 71.758344] ? finish_task_switch+0x1d3/0x740 [ 71.762805] ? do_raw_spin_trylock+0x190/0x190 [ 71.767351] ? rcu_sched_qs+0xe/0x140 [ 71.771123] process_one_work+0xbf0/0x1bc0 [ 71.775333] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 71.780496] ? pwq_dec_nr_in_flight+0x450/0x450 [ 71.785130] ? preempt_notifier_dec+0x20/0x20 [ 71.789587] ? sched_clock_cpu+0x1b/0x170 [ 71.793713] ? __schedule+0x8f3/0x2060 [ 71.797568] ? check_noncircular+0x20/0x20 [ 71.801765] ? account_entity_enqueue+0x3c8/0x6e0 [ 71.806578] ? check_noncircular+0x20/0x20 [ 71.810786] ? lock_acquire+0x1d5/0x580 [ 71.814725] ? lock_acquire+0x1d5/0x580 [ 71.818663] ? worker_thread+0x4a3/0x1990 [ 71.822773] ? lock_downgrade+0x990/0x990 [ 71.826885] ? lock_release+0xa40/0xa40 [ 71.830822] ? worker_pool_assign_id+0x1b0/0x1b0 [ 71.835542] ? do_raw_spin_trylock+0x190/0x190 [ 71.840093] worker_thread+0x223/0x1990 [ 71.844042] ? process_one_work+0x1bc0/0x1bc0 [ 71.848502] ? _raw_spin_unlock_irq+0x27/0x70 [ 71.852961] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 71.857939] ? trace_hardirqs_on+0xd/0x10 [ 71.862052] ? _raw_spin_unlock_irq+0x27/0x70 [ 71.866511] ? finish_task_switch+0x1d3/0x740 [ 71.870967] ? finish_task_switch+0x1aa/0x740 [ 71.875427] ? preempt_notifier_dec+0x20/0x20 [ 71.879888] ? __schedule+0x8f3/0x2060 [ 71.883750] ? find_held_lock+0x35/0x1d0 [ 71.887784] ? find_held_lock+0x35/0x1d0 [ 71.891814] ? complete+0x62/0x80 [ 71.895234] ? __schedule+0x2060/0x2060 [ 71.899176] ? do_wait_intr+0x3e0/0x3e0 [ 71.903112] ? __lockdep_init_map+0xe4/0x650 [ 71.907490] ? do_raw_spin_trylock+0x190/0x190 [ 71.912037] ? lockdep_init_map+0x9/0x10 [ 71.916060] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 71.921133] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 71.926111] ? trace_hardirqs_on+0xd/0x10 [ 71.930225] ? __kthread_parkme+0x175/0x240 [ 71.934510] kthread+0x35e/0x430 [ 71.937841] ? process_one_work+0x1bc0/0x1bc0 [ 71.942298] ? kthread_create_on_node+0x100/0x100 [ 71.947106] ret_from_fork+0x2a/0x40 [ 71.950864] Mem-Info: [ 71.953397] active_anon:1210 inactive_anon:32 isolated_anon:0 [ 71.953397] active_file:50 inactive_file:0 isolated_file:0 [ 71.953397] unevictable:0 dirty:0 writeback:0 unstable:0 [ 71.953397] slab_reclaimable:6060 slab_unreclaimable:81758 [ 71.953397] mapped:11 shmem:39 pagetables:1494 bounce:0 [ 71.953397] free:24189 free_pcp:406 free_cma:0 [ 71.985744] Node 0 active_anon:4840kB inactive_anon:128kB active_file:100kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:44kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 72.012275] 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 [ 72.038396] lowmem_reserve[]: 0 2884 6397 6397 [ 72.042972] Node 0 DMA32 free:44140kB min:30396kB low:37992kB high:45588kB active_anon:28kB inactive_anon:4kB active_file:24kB inactive_file:36kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:796kB local_pcp:728kB free_cma:0kB [ 72.071239] lowmem_reserve[]: 0 0 3513 3513 [ 72.075543] Node 0 Normal free:36708kB min:37020kB low:46272kB high:55524kB active_anon:4812kB inactive_anon:124kB active_file:28kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11488kB pagetables:4628kB bounce:0kB free_pcp:824kB local_pcp:696kB free_cma:0kB [ 72.104336] lowmem_reserve[]: 0 0 0 0 [ 72.108136] 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 [ 72.121704] Node 0 DMA32: 2*4kB (ME) 1*8kB (E) 1*16kB (U) 11*32kB (M) 18*64kB (ME) 10*128kB (ME) 6*256kB (UM) 5*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 8*4096kB (M) = 43776kB [ 72.137324] Node 0 Normal: 286*4kB (M) 321*8kB (UME) 238*16kB (UME) 146*32kB (M) 102*64kB (UM) 46*128kB (ME) 17*256kB (ME) 7*512kB (UM) 4*1024kB (UM) 0*2048kB 0*4096kB = 36640kB [ 72.153298] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 72.161848] 112 total pagecache pages [ 72.165628] 0 pages in swap cache [ 72.169062] Swap cache stats: add 0, delete 0, find 0/0 [ 72.174407] Free swap = 0kB [ 72.177405] Total swap = 0kB [ 72.180402] 1965979 pages RAM [ 72.183485] 0 pages HighMem/MovableOnly [ 72.187444] 323598 pages reserved [ 72.190876] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 72.199540] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 72.208273] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 72.216999] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 72.225733] [ 2926] 0 2926 30649 206 24 3 0 0 rsyslogd [ 72.234732] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 72.243391] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 72.252045] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 72.260772] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 72.269515] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 72.278251] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 72.286976] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 72.295701] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 72.304432] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 72.314025] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 72.322663] [ 3037] 0 3037 300 1 4 2 0 0 syzkaller248416 [ 72.332258] [ 3038] 0 3038 356826 0 178 4 0 0 syzkaller248416 [ 72.341852] [ 3039] 0 3039 356826 0 178 4 0 0 syzkaller248416 [ 72.351457] [ 3042] 0 3042 455178 0 226 5 0 0 syzkaller248416 [ 72.361070] [ 3045] 0 3045 459276 0 228 5 0 0 syzkaller248416 [ 72.370672] [ 3047] 0 3047 502305 0 249 5 0 0 syzkaller248416 [ 72.380266] [ 3049] 0 3049 358875 0 179 4 0 0 syzkaller248416 [ 72.389854] Out of memory: Kill process 3035 (sshd) score 0 or sacrifice child [ 72.397216] Killed process 3037 (syzkaller248416) total-vm:1200kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 72.552685] kworker/1:0 invoked oom-killer: gfp_mask=0x14001c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 72.565744] kworker/1:0 cpuset=/ mems_allowed=0 [ 72.570420] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.14.0-rc7+ #114 [ 72.577321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.586661] Workqueue: events pcpu_balance_workfn [ 72.591481] Call Trace: [ 72.594050] dump_stack+0x194/0x257 [ 72.597657] ? arch_local_irq_restore+0x53/0x53 [ 72.602312] dump_header+0x234/0xa0e [ 72.606006] ? task_will_free_mem+0x252/0xaa0 [ 72.610480] ? pagefault_out_of_memory+0x152/0x152 [ 72.615392] ? lock_acquire+0x1d5/0x580 [ 72.619342] ? ___ratelimit+0x30d/0x630 [ 72.623296] ? lock_downgrade+0x990/0x990 [ 72.627423] ? avc_has_perm_noaudit+0x37e/0x520 [ 72.632070] ? lock_release+0xa40/0xa40 [ 72.636025] ? do_raw_spin_trylock+0x190/0x190 [ 72.640586] ? lock_downgrade+0x990/0x990 [ 72.644714] ? trace_hardirqs_on+0xd/0x10 [ 72.648838] ? ___ratelimit+0x95/0x630 [ 72.652703] ? idr_get_free_cmn+0xfd0/0xfd0 [ 72.657002] ? cred_has_capability+0x1a0/0x3d0 [ 72.661566] oom_kill_process+0x86d/0x13d0 [ 72.665778] ? lock_downgrade+0x990/0x990 [ 72.669898] ? lock_release+0xa40/0xa40 [ 72.673849] ? lock_release+0xa40/0xa40 [ 72.677805] ? oom_evaluate_task+0x480/0x480 [ 72.682193] ? security_capable_noaudit+0x8b/0xc0 [ 72.687018] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 72.692100] ? has_capability+0x30/0x30 [ 72.696049] ? do_raw_spin_trylock+0x190/0x190 [ 72.700620] ? lock_acquire+0x1d5/0x580 [ 72.704568] ? lock_acquire+0x1d5/0x580 [ 72.708518] ? oom_unkillable_task+0x394/0x4c0 [ 72.713093] ? lock_downgrade+0x990/0x990 [ 72.717217] ? lock_release+0xa40/0xa40 [ 72.721184] ? oom_unkillable_task+0x33d/0x4c0 [ 72.725740] ? out_of_memory+0xaa9/0x11d0 [ 72.729871] ? lock_downgrade+0x990/0x990 [ 72.733995] ? lock_release+0xa40/0xa40 [ 72.737943] ? lock_acquire+0x1d5/0x580 [ 72.741893] ? blocking_notifier_call_chain+0x112/0x190 [ 72.747233] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 72.752227] ? srcu_init_notifier_head+0x80/0x80 [ 72.756965] ? oom_evaluate_task+0x284/0x480 [ 72.761354] out_of_memory+0x7dc/0x11d0 [ 72.765311] ? oom_killer_disable+0x310/0x310 [ 72.769780] ? mutex_trylock+0x23a/0x2d0 [ 72.773820] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 72.779250] ? find_next_bit+0x27/0x30 [ 72.783120] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 72.787963] ? warn_alloc+0x2f0/0x2f0 [ 72.791741] ? lock_downgrade+0x990/0x990 [ 72.795866] ? lock_release+0xa40/0xa40 [ 72.799818] ? update_sd_lb_stats+0x3a7/0x2780 [ 72.804374] ? in_lock_functions+0x20/0x20 [ 72.808600] ? lock_acquire+0x1d5/0x580 [ 72.812548] ? lock_acquire+0x1d5/0x580 [ 72.816497] ? pcpu_balance_workfn+0x134/0x1520 [ 72.821144] ? cpuacct_charge+0x2de/0x5b0 [ 72.825272] ? check_same_owner+0x320/0x320 [ 72.829567] ? lock_release+0xa40/0xa40 [ 72.833519] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 72.838859] ? __update_load_avg_se.isra.26+0x3c6/0x550 [ 72.844200] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 72.849367] ? pcpu_balance_workfn+0x134/0x1520 [ 72.854013] ? pcpu_balance_workfn+0x134/0x1520 [ 72.858660] ? lock_acquire+0x1d5/0x580 [ 72.862608] ? lock_acquire+0x1d5/0x580 [ 72.866558] ? fs_reclaim_acquire+0x20/0x20 [ 72.870855] ? lock_downgrade+0x990/0x990 [ 72.874988] ? check_same_owner+0x320/0x320 [ 72.879292] ? __might_sleep+0x95/0x190 [ 72.883247] __alloc_pages_nodemask+0x9fb/0xd80 [ 72.887892] ? lock_release+0xa40/0xa40 [ 72.891840] ? native_smp_send_reschedule+0x69/0xa0 [ 72.896838] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 72.901834] ? dequeue_task_fair+0x147d/0x39e0 [ 72.906409] ? wait_for_completion+0x770/0x770 [ 72.910968] ? lock_acquire+0x1d5/0x580 [ 72.914919] ? pcpu_balance_workfn+0xd4a/0x1520 [ 72.919570] ? find_next_bit+0x27/0x30 [ 72.923441] pcpu_populate_chunk+0x1b3/0x880 [ 72.927834] pcpu_balance_workfn+0xf3e/0x1520 [ 72.932306] ? msleep_interruptible+0x150/0x150 [ 72.936949] ? _find_next_bit+0xee/0x120 [ 72.940993] ? pcpu_create_chunk+0x900/0x900 [ 72.945384] ? lock_acquire+0x1d5/0x580 [ 72.949338] ? lock_acquire+0x1d5/0x580 [ 72.953287] ? lock_acquire+0x1d5/0x580 [ 72.957241] ? process_one_work+0xb32/0x1bc0 [ 72.961628] ? switch_mm_irqs_off+0x8e1/0x1380 [ 72.966187] ? lock_release+0xa40/0xa40 [ 72.970135] ? finish_task_switch+0x1d3/0x740 [ 72.974610] ? do_raw_spin_trylock+0x190/0x190 [ 72.979170] ? rcu_sched_qs+0xe/0x140 [ 72.982958] process_one_work+0xbf0/0x1bc0 [ 72.987169] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 72.992343] ? pwq_dec_nr_in_flight+0x450/0x450 [ 72.996992] ? preempt_notifier_dec+0x20/0x20 [ 73.001464] ? sched_clock_cpu+0x1b/0x170 [ 73.005602] ? __schedule+0x8f3/0x2060 [ 73.009476] ? check_noncircular+0x20/0x20 [ 73.013691] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 73.018426] ? retint_kernel+0x10/0x10 [ 73.022301] ? lock_acquire+0x1d5/0x580 [ 73.026249] ? lock_acquire+0x1d5/0x580 [ 73.030199] ? worker_thread+0x4a3/0x1990 [ 73.034323] ? lock_downgrade+0x990/0x990 [ 73.038451] ? lock_release+0xa40/0xa40 [ 73.042404] ? worker_pool_assign_id+0x1b0/0x1b0 [ 73.047140] ? do_raw_spin_trylock+0x190/0x190 [ 73.051706] worker_thread+0x223/0x1990 [ 73.055671] ? process_one_work+0x1bc0/0x1bc0 [ 73.060145] ? _raw_spin_unlock_irq+0x27/0x70 [ 73.064616] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 73.069606] ? trace_hardirqs_on+0xd/0x10 [ 73.073733] ? finish_task_switch+0x1d3/0x740 [ 73.078204] ? finish_task_switch+0x1aa/0x740 [ 73.082677] ? preempt_notifier_dec+0x20/0x20 [ 73.087160] ? __schedule+0x8f3/0x2060 [ 73.091041] ? find_held_lock+0x35/0x1d0 [ 73.095087] ? find_held_lock+0x35/0x1d0 [ 73.099131] ? complete+0x62/0x80 [ 73.102565] ? __schedule+0x2060/0x2060 [ 73.106519] ? do_wait_intr+0x3e0/0x3e0 [ 73.110467] ? __lockdep_init_map+0xe4/0x650 [ 73.114852] ? do_raw_spin_trylock+0x190/0x190 [ 73.119408] ? lockdep_init_map+0x9/0x10 [ 73.123448] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 73.128529] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 73.133523] ? trace_hardirqs_on+0xd/0x10 [ 73.137648] ? __kthread_parkme+0x175/0x240 [ 73.141951] kthread+0x35e/0x430 [ 73.145293] ? process_one_work+0x1bc0/0x1bc0 [ 73.149761] ? kthread_create_on_node+0x100/0x100 [ 73.154589] ret_from_fork+0x2a/0x40 [ 73.158318] Mem-Info: [ 73.160730] active_anon:1197 inactive_anon:32 isolated_anon:0 [ 73.160730] active_file:0 inactive_file:30 isolated_file:0 [ 73.160730] unevictable:0 dirty:0 writeback:0 unstable:0 [ 73.160730] slab_reclaimable:6065 slab_unreclaimable:81778 [ 73.160730] mapped:3 shmem:39 pagetables:1490 bounce:0 [ 73.160730] free:24320 free_pcp:98 free_cma:0 [ 73.192775] Node 0 active_anon:4788kB inactive_anon:128kB active_file:0kB inactive_file:120kB 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 [ 73.219344] 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 [ 73.245450] lowmem_reserve[]: 0 2884 6397 6397 [ 73.250034] Node 0 DMA32 free:44408kB min:30396kB low:37992kB high:45588kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:152kB unevictable:0kB writepending:0kB present:3129332kB managed:2956164kB mlocked:0kB kernel_stack:4096kB pagetables:1348kB bounce:0kB free_pcp:128kB local_pcp:128kB free_cma:0kB [ 73.278317] lowmem_reserve[]: 0 0 3513 3513 [ 73.282636] Node 0 Normal free:36964kB min:37020kB low:46272kB high:55524kB active_anon:4760kB inactive_anon:124kB active_file:0kB inactive_file:76kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:11456kB pagetables:4612kB bounce:0kB free_pcp:264kB local_pcp:248kB free_cma:0kB [ 73.311340] lowmem_reserve[]: 0 0 0 0 [ 73.315140] 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 [ 73.328709] Node 0 DMA32: 22*4kB (ME) 6*8kB (UM) 11*16kB (UM) 14*32kB (ME) 18*64kB (ME) 10*128kB (UME) 7*256kB (UM) 5*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 8*4096kB (M) = 44408kB [ 73.344891] Node 0 Normal: 427*4kB (UM) 321*8kB (UME) 239*16kB (UME) 146*32kB (M) 102*64kB (UM) 46*128kB (UME) 16*256kB (ME) 7*512kB (UM) 4*1024kB (UM) 0*2048kB 0*4096kB = 36964kB [ 73.361075] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 73.369642] 70 total pagecache pages [ 73.373345] 0 pages in swap cache [ 73.376785] Swap cache stats: add 0, delete 0, find 0/0 [ 73.382133] Free swap = 0kB [ 73.385136] Total swap = 0kB [ 73.388139] 1965979 pages RAM [ 73.391230] 0 pages HighMem/MovableOnly [ 73.395186] 323598 pages reserved [ 73.398625] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 73.407284] [ 1547] 0 1547 5316 113 16 3 0 -1000 udevd [ 73.416023] [ 1642] 0 1642 5315 116 15 3 0 -1000 udevd [ 73.424768] [ 1643] 0 1643 5315 115 15 3 0 -1000 udevd [ 73.433511] [ 2926] 0 2926 30649 206 24 3 0 0 rsyslogd [ 73.442512] [ 2961] 0 2961 4725 50 15 3 0 0 cron [ 73.451168] [ 2987] 0 2987 12490 152 29 3 0 -1000 sshd [ 73.459823] [ 3011] 0 3011 3694 39 13 3 0 0 getty [ 73.468570] [ 3012] 0 3012 3694 40 12 3 0 0 getty [ 73.477313] [ 3013] 0 3013 3694 40 13 3 0 0 getty [ 73.486055] [ 3014] 0 3014 3694 40 13 3 0 0 getty [ 73.494798] [ 3015] 0 3015 3694 41 13 3 0 0 getty [ 73.503545] [ 3016] 0 3016 3694 40 12 3 0 0 getty [ 73.512286] [ 3017] 0 3017 3649 39 13 3 0 0 getty [ 73.521025] [ 3035] 0 3035 17821 199 39 3 0 0 sshd [ 73.529681] [ 3038] 0 3038 356826 0 178 4 0 0 syzkaller248416 [ 73.539294] [ 3039] 0 3039 356826 0 178 4 0 0 syzkaller248416 Connection to ci-upstream-net-kasan-gce-4 closed by remote host. [ 73.548908] [ 3042] 0 3042 455178 0 226 5 0 0 syzka