Debian GNU/Linux 7 syzkaller ttyS0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 133.799895] syzkaller564189: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 133.800866] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 133.801357] CPU: 0 PID: 3024 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 133.802250] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 133.802736] Call Trace: [ 133.802891] dump_stack+0x194/0x257 [ 133.803107] ? arch_local_irq_restore+0x53/0x53 [ 133.803384] ? flush_work+0x621/0x930 [ 133.803610] warn_alloc+0x1c2/0x2f0 [ 133.803820] ? zone_watermark_ok_safe+0x430/0x430 [ 133.804095] ? mutex_unlock+0xd/0x10 [ 133.804332] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 133.804648] ? warn_alloc+0x2f0/0x2f0 [ 133.804900] ? SyS_ioctl+0x8f/0xc0 [ 133.805223] ? warn_alloc+0x2f0/0x2f0 [ 133.805519] ? save_stack_trace+0x16/0x20 [ 133.805892] ? check_noncircular+0x20/0x20 [ 133.806274] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 133.806740] ? find_held_lock+0x39/0x1d0 [ 133.807107] ? lock_downgrade+0x990/0x990 [ 133.807418] ? check_same_owner+0x320/0x320 [ 133.807799] ? rcu_note_context_switch+0x710/0x710 [ 133.808206] ? check_noncircular+0x20/0x20 [ 133.808508] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 133.809096] ? __might_sleep+0x95/0x190 [ 133.809668] __alloc_pages_nodemask+0x9f7/0xd80 [ 133.810022] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 133.810364] ? __alloc_pages_nodemask+0xae5/0xd80 [ 133.810790] ? find_held_lock+0x39/0x1d0 [ 133.811072] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 133.811527] ? cache_grow_begin+0x31b/0x400 [ 133.811830] cache_grow_begin+0x86/0x400 [ 133.812191] fallback_alloc+0x150/0x2b0 [ 133.812481] ____cache_alloc_node+0x1cf/0x1e0 [ 133.812902] kmem_cache_alloc_trace+0x27d/0x750 [ 133.813224] ? lock_downgrade+0x990/0x990 [ 133.813600] kvm_dev_ioctl+0x216/0x1840 [ 133.813880] ? lock_release+0xd70/0xd70 [ 133.814232] ? install_new_memslots+0x420/0x420 [ 133.814565] ? avc_has_extended_perms+0x7fa/0x12c0 [ 133.814998] ? unwind_get_return_address+0x61/0xa0 [ 133.815443] ? avc_ss_reset+0x110/0x110 [ 133.815804] ? putname+0xee/0x130 [ 133.816118] ? save_stack+0xa3/0xd0 [ 133.816455] ? save_stack_trace+0x16/0x20 [ 133.816833] ? save_stack+0x43/0xd0 [ 133.817169] ? kasan_slab_free+0x71/0xc0 [ 133.817525] ? kmem_cache_free+0x77/0x280 [ 133.817897] ? putname+0xee/0x130 [ 133.818205] ? do_sys_open+0x31b/0x6d0 [ 133.818554] ? __lock_is_held+0xbc/0x140 [ 133.818920] ? check_same_owner+0x320/0x320 [ 133.819317] ? rcu_note_context_switch+0x710/0x710 [ 133.819760] ? install_new_memslots+0x420/0x420 [ 133.820170] do_vfs_ioctl+0x1b1/0x1530 [ 133.820512] ? _cond_resched+0x14/0x30 [ 133.820807] ? ioctl_preallocate+0x2b0/0x2b0 [ 133.821224] ? selinux_capable+0x40/0x40 [ 133.821537] ? putname+0xf3/0x130 [ 133.821826] ? security_file_ioctl+0x7d/0xb0 [ 133.822212] ? security_file_ioctl+0x89/0xb0 [ 133.822513] SyS_ioctl+0x8f/0xc0 [ 133.822818] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 133.823165] RIP: 0033:0x435369 [ 133.823480] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 133.824180] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 133.824840] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 000000000000034f [ 133.825492] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 133.826123] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 133.826762] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 133.827543] Mem-Info: [ 133.827880] active_anon:3619 inactive_anon:41 isolated_anon:0 [ 133.827880] active_file:342 inactive_file:330 isolated_file:64 [ 133.827880] unevictable:0 dirty:0 writeback:0 unstable:0 [ 133.827880] slab_reclaimable:53334 slab_unreclaimable:329035 [ 133.827880] mapped:628 shmem:76 pagetables:307 bounce:0 [ 133.827880] free:17760 free_pcp:0 free_cma:0 [ 133.830789] Node 0 active_anon:5112kB inactive_anon:64kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 133.833183] Node 1 active_anon:9364kB inactive_anon:100kB active_file:1216kB inactive_file:1052kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:2204kB dirty:0kB writeback:0kB shmem:192kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 133.835511] Node 0 DMA free:4104kB min:640kB low:800kB high:960kB active_anon:64kB 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 [ 133.837839] lowmem_reserve[]: 0 886 886 886 [ 133.838278] Node 0 DMA32 free:36532kB min:36536kB low:45668kB high:54800kB active_anon:5048kB inactive_anon:64kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2240kB pagetables:596kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 133.840757] lowmem_reserve[]: 0 0 0 0 [ 133.841152] Node 1 DMA32 free:30404kB min:30404kB low:38004kB high:45604kB active_anon:9364kB inactive_anon:100kB active_file:1316kB inactive_file:1396kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1696kB pagetables:632kB bounce:0kB free_pcp:420kB local_pcp:0kB free_cma:0kB [ 133.843666] lowmem_reserve[]: 0 0 0 0 [ 133.844044] Node 0 DMA: 8*4kB (UME) 5*8kB (UME) 0*16kB 2*32kB (ME) 0*64kB 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4104kB [ 133.845350] Node 0 DMA32: 335*4kB (UME) 304*8kB (UM) 171*16kB (UM) 86*32kB (UME) 19*64kB (UME) 10*128kB (ME) 5*256kB (ME) 2*512kB (M) 2*1024kB (UE) 4*2048kB (UME) 3*4096kB (M) = 36588kB [ 133.847013] Node 1 DMA32: 403*4kB (UME) 1126*8kB (UM) 483*16kB (UME) 111*32kB (UME) 39*64kB (UME) 1*128kB (M) 1*256kB (U) 2*512kB (ME) 3*1024kB (UME) 1*2048kB (M) 0*4096kB = 30924kB [ 133.848576] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 133.849351] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 133.850115] 634 total pagecache pages [ 133.850455] 0 pages in swap cache [ 133.850763] Swap cache stats: add 0, delete 0, find 0/0 [ 133.851274] Free swap = 0kB [ 133.851790] Total swap = 0kB [ 133.852072] 524186 pages RAM [ 133.852323] 0 pages HighMem/MovableOnly [ 133.852643] 103968 pages reserved executing program executing program executing program executing program executing program [ 134.243348] syzkaller564189: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 134.244394] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 134.244948] CPU: 1 PID: 3020 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 134.245785] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 134.246519] Call Trace: [ 134.246762] dump_stack+0x194/0x257 [ 134.247069] ? arch_local_irq_restore+0x53/0x53 [ 134.247513] ? flush_work+0x621/0x930 [ 134.247892] warn_alloc+0x1c2/0x2f0 [ 134.248255] ? zone_watermark_ok_safe+0x430/0x430 [ 134.248611] ? mutex_unlock+0xd/0x10 [ 134.248904] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 134.249278] ? warn_alloc+0x2f0/0x2f0 [ 134.249565] ? SyS_ioctl+0x8f/0xc0 [ 134.249853] ? warn_alloc+0x2f0/0x2f0 [ 134.250216] ? save_stack_trace+0x16/0x20 [ 134.250637] ? check_noncircular+0x20/0x20 [ 134.251021] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 134.251411] ? find_held_lock+0x39/0x1d0 [ 134.251750] ? lock_downgrade+0x990/0x990 [ 134.252148] ? check_same_owner+0x320/0x320 [ 134.252598] ? rcu_note_context_switch+0x710/0x710 [ 134.253105] ? check_noncircular+0x20/0x20 [ 134.253541] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 134.254240] ? __might_sleep+0x95/0x190 [ 134.254658] __alloc_pages_nodemask+0x9f7/0xd80 [ 134.255139] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.255623] ? __alloc_pages_nodemask+0xae5/0xd80 [ 134.255971] ? find_held_lock+0x39/0x1d0 [ 134.256393] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.257188] ? cache_grow_begin+0x31b/0x400 [ 134.257650] cache_grow_begin+0x86/0x400 [ 134.258094] fallback_alloc+0x150/0x2b0 [ 134.258519] ____cache_alloc_node+0x1cf/0x1e0 [ 134.258981] kmem_cache_alloc_trace+0x27d/0x750 [ 134.259454] ? lock_downgrade+0x990/0x990 [ 134.259960] kvm_dev_ioctl+0x216/0x1840 [ 134.260351] ? lock_release+0xd70/0xd70 [ 134.260687] ? install_new_memslots+0x420/0x420 [ 134.261108] ? avc_has_extended_perms+0x7fa/0x12c0 [ 134.261514] ? unwind_get_return_address+0x61/0xa0 [ 134.261939] ? avc_ss_reset+0x110/0x110 [ 134.262296] ? putname+0xee/0x130 [ 134.262597] ? save_stack+0xa3/0xd0 [ 134.262904] ? save_stack_trace+0x16/0x20 [ 134.263264] ? save_stack+0x43/0xd0 [ 134.263566] ? kasan_slab_free+0x71/0xc0 [ 134.263950] ? kmem_cache_free+0x77/0x280 [ 134.264293] ? putname+0xee/0x130 [ 134.264579] ? do_sys_open+0x31b/0x6d0 [ 134.264922] ? __lock_is_held+0xbc/0x140 [ 134.265348] ? check_same_owner+0x320/0x320 [ 134.265750] ? rcu_note_context_switch+0x710/0x710 [ 134.266162] ? install_new_memslots+0x420/0x420 [ 134.266623] do_vfs_ioctl+0x1b1/0x1530 [ 134.266997] ? _cond_resched+0x14/0x30 [ 134.267392] ? ioctl_preallocate+0x2b0/0x2b0 [ 134.267860] ? selinux_capable+0x40/0x40 [ 134.268281] ? putname+0xf3/0x130 [ 134.268804] ? security_file_ioctl+0x7d/0xb0 [ 134.269259] ? security_file_ioctl+0x89/0xb0 [ 134.269752] SyS_ioctl+0x8f/0xc0 [ 134.270112] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 134.270588] RIP: 0033:0x435369 [ 134.271071] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 134.271941] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 134.273074] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 000000000000032f [ 134.273809] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 134.274561] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 134.275296] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 134.343923] syzkaller564189: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 134.345955] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 134.346793] CPU: 0 PID: 3022 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 134.348162] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 134.349492] Call Trace: [ 134.349934] dump_stack+0x194/0x257 [ 134.350545] ? arch_local_irq_restore+0x53/0x53 [ 134.351308] ? isolate_lru_page+0x11d0/0x11d0 [ 134.352047] warn_alloc+0x1c2/0x2f0 [ 134.352638] ? zone_watermark_ok_safe+0x430/0x430 [ 134.353494] ? rcu_note_context_switch+0x710/0x710 [ 134.354337] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 134.355242] ? warn_alloc+0x2f0/0x2f0 [ 134.355888] ? SyS_ioctl+0x8f/0xc0 [ 134.356498] ? warn_alloc+0x2f0/0x2f0 [ 134.357164] ? save_stack_trace+0x16/0x20 [ 134.357888] ? check_noncircular+0x20/0x20 [ 134.358504] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 134.359447] ? find_held_lock+0x39/0x1d0 [ 134.360152] ? lock_downgrade+0x990/0x990 [ 134.360949] ? check_same_owner+0x320/0x320 [ 134.361785] ? rcu_note_context_switch+0x710/0x710 [ 134.362622] ? check_noncircular+0x20/0x20 [ 134.363214] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 134.365322] ? __might_sleep+0x95/0x190 [ 134.366051] __alloc_pages_nodemask+0x9f7/0xd80 [ 134.366880] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.367789] ? __alloc_pages_nodemask+0xae5/0xd80 [ 134.368690] ? find_held_lock+0x39/0x1d0 [ 134.369423] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.370374] ? cache_grow_begin+0x31b/0x400 [ 134.371166] cache_grow_begin+0x86/0x400 [ 134.371914] fallback_alloc+0x150/0x2b0 [ 134.372730] ____cache_alloc_node+0x1cf/0x1e0 [ 134.373525] kmem_cache_alloc_trace+0x27d/0x750 [ 134.374362] ? lock_downgrade+0x990/0x990 [ 134.375136] kvm_dev_ioctl+0x216/0x1840 [ 134.375799] ? lock_release+0xd70/0xd70 [ 134.376226] ? install_new_memslots+0x420/0x420 [ 134.377005] ? avc_has_extended_perms+0x7fa/0x12c0 [ 134.377536] ? unwind_get_return_address+0x61/0xa0 [ 134.378395] ? avc_ss_reset+0x110/0x110 [ 134.378833] ? putname+0xee/0x130 [ 134.379202] ? save_stack+0xa3/0xd0 [ 134.379590] ? save_stack_trace+0x16/0x20 [ 134.380204] ? save_stack+0x43/0xd0 [ 134.380605] ? kasan_slab_free+0x71/0xc0 [ 134.381093] ? kmem_cache_free+0x77/0x280 [ 134.381538] ? putname+0xee/0x130 [ 134.382111] ? do_sys_open+0x31b/0x6d0 [ 134.382529] ? __lock_is_held+0xbc/0x140 [ 134.383198] ? check_same_owner+0x320/0x320 [ 134.383701] ? rcu_note_context_switch+0x710/0x710 [ 134.384340] ? install_new_memslots+0x420/0x420 [ 134.384839] do_vfs_ioctl+0x1b1/0x1530 [ 134.386048] ? _cond_resched+0x14/0x30 [ 134.386742] ? ioctl_preallocate+0x2b0/0x2b0 [ 134.387190] ? selinux_capable+0x40/0x40 [ 134.387833] ? putname+0xf3/0x130 [ 134.388206] ? security_file_ioctl+0x7d/0xb0 [ 134.388641] ? security_file_ioctl+0x89/0xb0 [ 134.389154] SyS_ioctl+0x8f/0xc0 [ 134.389500] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 134.389998] RIP: 0033:0x435369 [ 134.390332] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 134.391180] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 134.391918] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002b9 [ 134.392627] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 134.393370] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 134.394108] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 134.395199] syzkaller564189 invoked oom-killer: gfp_mask=0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null), order=0, oom_score_adj=0 [ 134.397139] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 134.397642] CPU: 1 PID: 3026 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 134.398423] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 134.399359] Call Trace: [ 134.399637] dump_stack+0x194/0x257 [ 134.400017] ? arch_local_irq_restore+0x53/0x53 [ 134.400556] ? check_noncircular+0x20/0x20 [ 134.401080] dump_header+0x234/0xa0e [ 134.401487] ? pagefault_out_of_memory+0x152/0x152 [ 134.402110] ? lock_acquire+0x1d5/0x580 [ 134.402528] ? ___ratelimit+0x152/0x630 [ 134.402990] ? do_raw_spin_trylock+0x190/0x190 [ 134.403483] ? mark_held_locks+0xb2/0x100 [ 134.403930] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 134.404475] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 134.404952] ? trace_hardirqs_on+0xd/0x10 [ 134.405345] ? ___ratelimit+0x95/0x630 [ 134.405695] ? idr_get_free+0xff0/0xff0 [ 134.406073] ? lock_downgrade+0x990/0x990 [ 134.407676] ? cred_has_capability+0x1a0/0x3d0 [ 134.408182] oom_kill_process+0x86d/0x13d0 [ 134.408627] ? lock_release+0xd70/0xd70 [ 134.409056] ? oom_evaluate_task+0x480/0x480 [ 134.409503] ? security_capable_noaudit+0x8b/0xc0 [ 134.410004] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 134.410545] ? check_noncircular+0x20/0x20 [ 134.411112] ? has_capability+0x30/0x30 [ 134.411538] ? has_capability_noaudit+0x24/0x30 [ 134.412024] ? oom_badness+0xdf/0xb80 [ 134.412424] ? find_held_lock+0x39/0x1d0 [ 134.413200] ? lock_downgrade+0x990/0x990 [ 134.413640] ? out_of_memory+0x921/0x11d0 [ 134.414348] ? oom_reaper+0x4d0/0x4d0 [ 134.414760] ? lock_release+0xd70/0xd70 [ 134.415448] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 134.415981] ? oom_evaluate_task+0x284/0x480 [ 134.416754] out_of_memory+0x7dd/0x11d0 [ 134.417177] ? trace_hardirqs_on+0xd/0x10 [ 134.417893] ? oom_killer_disable+0x310/0x310 [ 134.418371] ? mutex_trylock+0x23a/0x2d0 [ 134.419064] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 134.419603] ? check_same_owner+0x320/0x320 [ 134.420106] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 134.420661] ? warn_alloc+0x2f0/0x2f0 [ 134.421087] ? save_stack_trace+0x16/0x20 [ 134.421758] ? lock_downgrade+0x990/0x990 [ 134.422524] ? bpf_prog_alloc+0x310/0x310 [ 134.422960] ? __bpf_address_lookup+0x2b0/0x2b0 [ 134.423507] ? check_noncircular+0x20/0x20 [ 134.423945] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 134.424466] ? __free_insn_slot+0x5c0/0x5c0 [ 134.424991] ? unwind_dump+0x4c0/0x4c0 [ 134.425429] ? find_held_lock+0x39/0x1d0 [ 134.425867] ? depot_save_stack+0x12c/0x490 [ 134.426337] ? check_same_owner+0x320/0x320 [ 134.426787] ? __might_sleep+0x95/0x190 [ 134.428592] __alloc_pages_nodemask+0x9f7/0xd80 [ 134.429093] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.429631] ? __lock_is_held+0xbc/0x140 [ 134.430082] ? cpus_read_unlock+0x56/0x70 [ 134.430556] ? static_key_slow_inc+0x16b/0x3c0 [ 134.431050] ? kvm_dev_ioctl+0x13e1/0x1840 [ 134.431637] ? mmu_notifier_synchronize+0x20/0x20 [ 134.432153] alloc_pages_current+0xb6/0x1e0 [ 134.432814] kvm_coalesced_mmio_init+0x6d/0x1c0 [ 134.433308] ? coalesced_mmio_write+0x3c0/0x3c0 [ 134.433995] kvm_dev_ioctl+0x637/0x1840 [ 134.434419] ? install_new_memslots+0x420/0x420 [ 134.434943] ? avc_has_extended_perms+0x7fa/0x12c0 [ 134.435456] ? unwind_get_return_address+0x61/0xa0 [ 134.436013] ? avc_ss_reset+0x110/0x110 [ 134.436431] ? putname+0xee/0x130 [ 134.436825] ? save_stack+0xa3/0xd0 [ 134.437215] ? save_stack_trace+0x16/0x20 [ 134.437775] ? save_stack+0x43/0xd0 [ 134.438164] ? kmem_cache_free+0x77/0x280 [ 134.438598] ? putname+0xee/0x130 [ 134.438989] ? do_sys_open+0x31b/0x6d0 [ 134.439425] ? __lock_is_held+0xbc/0x140 [ 134.439910] ? check_same_owner+0x320/0x320 [ 134.440360] ? rcu_note_context_switch+0x710/0x710 [ 134.440897] ? install_new_memslots+0x420/0x420 [ 134.441390] do_vfs_ioctl+0x1b1/0x1530 [ 134.441822] ? _cond_resched+0x14/0x30 [ 134.442228] ? ioctl_preallocate+0x2b0/0x2b0 [ 134.442708] ? selinux_capable+0x40/0x40 [ 134.443123] ? putname+0xf3/0x130 [ 134.443550] ? security_file_ioctl+0x7d/0xb0 [ 134.444033] ? security_file_ioctl+0x89/0xb0 [ 134.444494] SyS_ioctl+0x8f/0xc0 [ 134.444889] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 134.445378] RIP: 0033:0x435369 [ 134.445742] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 134.446524] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 134.447276] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000349 [ 134.448039] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 134.448781] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 134.450374] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 134.451196] Mem-Info: [ 134.452070] active_anon:4134 inactive_anon:42 isolated_anon:0 [ 134.452070] active_file:27 inactive_file:30 isolated_file:0 [ 134.452070] unevictable:0 dirty:0 writeback:0 unstable:0 [ 134.452070] slab_reclaimable:53418 slab_unreclaimable:329193 [ 134.452070] mapped:31 shmem:77 pagetables:307 bounce:0 [ 134.452070] free:17592 free_pcp:0 free_cma:0 [ 134.458255] Node 0 active_anon:5104kB inactive_anon:64kB active_file:160kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:20kB dirty:0kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 134.461342] Node 1 active_anon:11432kB inactive_anon:104kB active_file:148kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:104kB dirty:0kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 134.463962] Node 0 DMA free:4104kB min:640kB low:800kB high:960kB active_anon:64kB 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 [ 134.466445] lowmem_reserve[]: 0 886 886 886 [ 134.466848] Node 0 DMA32 free:36460kB min:36536kB low:45668kB high:54800kB active_anon:5040kB inactive_anon:64kB active_file:0kB inactive_file:196kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2240kB pagetables:584kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 134.469516] lowmem_reserve[]: 0 0 0 0 [ 134.469799] Node 1 DMA32 free:30324kB min:30404kB low:38004kB high:45604kB active_anon:11432kB inactive_anon:104kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1696kB pagetables:644kB bounce:0kB free_pcp:320kB local_pcp:0kB free_cma:0kB [ 134.473251] lowmem_reserve[]: 0 0 0 0 [ 134.473604] Node 0 DMA: 8*4kB (UME) 5*8kB (UME) 0*16kB 2*32kB (ME) 0*64kB 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4104kB [ 134.474917] Node 0 DMA32: 335*4kB (UME) 299*8kB (UM) 172*16kB (UME) 85*32kB (UM) 18*64kB (UM) 10*128kB (ME) 5*256kB (ME) 2*512kB (M) 2*1024kB (UE) 4*2048kB (UME) 3*4096kB (M) = 36468kB [ 134.476624] Node 1 DMA32: 341*4kB (UM) 1166*8kB (UME) 541*16kB (UM) 143*32kB (UME) 53*64kB (UM) 10*128kB (M) 0*256kB 2*512kB (UE) 1*1024kB (E) 0*2048kB 0*4096kB = 30644kB [ 134.477932] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 134.478686] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 134.479422] 131 total pagecache pages [ 134.479759] 0 pages in swap cache [ 134.480078] Swap cache stats: add 0, delete 0, find 0/0 [ 134.480446] Free swap = 0kB [ 134.480713] Total swap = 0kB [ 134.480935] 524186 pages RAM [ 134.481238] 0 pages HighMem/MovableOnly [ 134.481626] 103968 pages reserved [ 134.481890] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 134.482699] [ 1511] 0 1511 7186 1942 19 3 0 -1000 udevd [ 134.483470] [ 2770] 0 2770 2493 574 9 3 0 0 dhclient [ 134.484161] [ 2896] 0 2896 30583 148 24 3 0 0 rsyslogd [ 134.484772] [ 2935] 0 2935 4725 48 14 3 0 0 cron [ 134.485572] [ 2961] 0 2961 12490 152 29 3 0 -1000 sshd [ 134.486244] [ 2985] 0 2985 3694 42 13 3 0 0 getty [ 134.486835] [ 2986] 0 2986 3694 40 13 3 0 0 getty [ 134.487616] [ 2987] 0 2987 3694 41 12 3 0 0 getty [ 134.488490] [ 2988] 0 2988 3694 41 13 3 0 0 getty [ 134.489265] [ 2989] 0 2989 3694 40 12 3 0 0 getty [ 134.490040] [ 2990] 0 2990 3694 41 12 3 0 0 getty [ 134.490807] [ 2991] 0 2991 3649 40 13 3 0 0 getty [ 134.491773] [ 2993] 0 2993 5337 127 15 3 0 -1000 udevd [ 134.492556] [ 2994] 0 2994 5337 128 15 3 0 -1000 udevd [ 134.493347] [ 3016] 0 3016 17820 196 40 3 0 0 sshd [ 134.493931] [ 3018] 0 3018 271 1 4 2 0 0 syzkaller564189 [ 134.494781] [ 3019] 0 3019 4366 11 5 2 0 0 syzkaller564189 [ 134.495511] [ 3020] 0 3020 4366 11 5 2 0 0 syzkaller564189 [ 134.496229] [ 3021] 0 3021 4366 11 5 2 0 0 syzkaller564189 [ 134.496875] [ 3022] 0 3022 4366 11 5 2 0 0 syzkaller564189 [ 134.497531] [ 3023] 0 3023 4366 523 5 2 0 0 syzkaller564189 [ 134.498267] [ 3024] 0 3024 4366 11 5 2 0 0 syzkaller564189 [ 134.498899] [ 3025] 0 3025 4366 11 5 2 0 0 syzkaller564189 [ 134.499746] [ 3026] 0 3026 4366 11 5 2 0 0 syzkaller564189 [ 134.500379] Out of memory: Kill process 2770 (dhclient) score 1 or sacrifice child [ 134.501146] Killed process 2770 (dhclient) total-vm:9972kB, anon-rss:2296kB, file-rss:0kB, shmem-rss:0kB [ 134.889152] syzkaller564189: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 134.890448] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 134.890996] CPU: 3 PID: 3023 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 134.891845] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 134.892661] Call Trace: [ 134.892943] dump_stack+0x194/0x257 [ 134.893326] ? arch_local_irq_restore+0x53/0x53 [ 134.893804] ? flush_work+0x621/0x930 [ 134.894202] warn_alloc+0x1c2/0x2f0 [ 134.894571] ? zone_watermark_ok_safe+0x430/0x430 [ 134.895056] ? mutex_unlock+0xd/0x10 [ 134.895469] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 134.896021] ? warn_alloc+0x2f0/0x2f0 [ 134.896411] ? SyS_ioctl+0x8f/0xc0 [ 134.896777] ? warn_alloc+0x2f0/0x2f0 [ 134.897460] ? save_stack_trace+0x16/0x20 [ 134.897897] ? check_noncircular+0x20/0x20 [ 134.898339] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 134.898884] ? find_held_lock+0x39/0x1d0 [ 134.899320] ? lock_downgrade+0x990/0x990 [ 134.899771] ? check_same_owner+0x320/0x320 [ 134.900215] ? rcu_note_context_switch+0x710/0x710 [ 134.900712] ? check_noncircular+0x20/0x20 [ 134.901153] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 134.901830] ? __might_sleep+0x95/0x190 [ 134.902240] __alloc_pages_nodemask+0x9f7/0xd80 [ 134.902719] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.903230] ? __alloc_pages_nodemask+0xae5/0xd80 [ 134.903724] ? find_held_lock+0x39/0x1d0 [ 134.904140] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.904674] ? cache_grow_begin+0x31b/0x400 [ 134.905126] cache_grow_begin+0x86/0x400 [ 134.905549] fallback_alloc+0x150/0x2b0 [ 134.905968] ____cache_alloc_node+0x1cf/0x1e0 [ 134.906431] kmem_cache_alloc_trace+0x27d/0x750 [ 134.906899] ? lock_downgrade+0x990/0x990 [ 134.907342] kvm_dev_ioctl+0x216/0x1840 [ 134.907757] ? lock_release+0xd70/0xd70 [ 134.908165] ? install_new_memslots+0x420/0x420 [ 134.908654] ? avc_has_extended_perms+0x7fa/0x12c0 [ 134.909154] ? unwind_get_return_address+0x61/0xa0 [ 134.909672] ? avc_ss_reset+0x110/0x110 [ 134.910079] ? putname+0xee/0x130 [ 134.910431] ? save_stack+0xa3/0xd0 [ 134.910801] ? save_stack_trace+0x16/0x20 [ 134.911220] ? save_stack+0x43/0xd0 [ 134.911591] ? kasan_slab_free+0x71/0xc0 [ 134.912007] ? kmem_cache_free+0x77/0x280 [ 134.912386] syzkaller564189 invoked oom-killer: gfp_mask=0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null), order=0, oom_score_adj=0 [ 134.912399] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 134.914150] ? putname+0xee/0x130 [ 134.914503] ? do_sys_open+0x31b/0x6d0 [ 134.914905] ? __lock_is_held+0xbc/0x140 [ 134.915348] ? check_same_owner+0x320/0x320 [ 134.915791] ? rcu_note_context_switch+0x710/0x710 [ 134.916301] ? install_new_memslots+0x420/0x420 [ 134.916772] do_vfs_ioctl+0x1b1/0x1530 [ 134.917175] ? _cond_resched+0x14/0x30 [ 134.917583] ? ioctl_preallocate+0x2b0/0x2b0 [ 134.918305] ? selinux_capable+0x40/0x40 [ 134.918693] ? putname+0xf3/0x130 [ 134.919070] ? security_file_ioctl+0x7d/0xb0 [ 134.919531] ? security_file_ioctl+0x89/0xb0 [ 134.919994] SyS_ioctl+0x8f/0xc0 [ 134.920354] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 134.920841] RIP: 0033:0x435369 [ 134.921186] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 134.921983] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 134.922735] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002fd [ 134.923478] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 134.924218] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 134.924960] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 134.925706] CPU: 0 PID: 3022 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 134.925739] warn_alloc_show_mem: 2 callbacks suppressed [ 134.925748] Mem-Info: [ 134.925762] active_anon:3048 inactive_anon:42 isolated_anon:0 [ 134.925762] active_file:23 inactive_file:29 isolated_file:0 [ 134.925762] unevictable:0 dirty:0 writeback:0 unstable:0 [ 134.925762] slab_reclaimable:53594 slab_unreclaimable:330084 [ 134.925762] mapped:2 shmem:77 pagetables:297 bounce:0 [ 134.925762] free:17671 free_pcp:44 free_cma:0 [ 134.925773] Node 0 active_anon:5100kB inactive_anon:64kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 134.925784] Node 1 active_anon:7092kB inactive_anon:104kB active_file:40kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 134.925787] Node 0 DMA free:4104kB min:640kB low:800kB high:960kB active_anon:64kB 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 [ 134.925802] lowmem_reserve[]: 0 886 886 886 [ 134.925822] Node 0 DMA32 free:36448kB min:36536kB low:45668kB high:54800kB active_anon:5036kB inactive_anon:64kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2240kB pagetables:572kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 134.925837] lowmem_reserve[]: 0 0 0 0 [ 134.925856] Node 1 DMA32 free:30132kB min:30404kB low:38004kB high:45604kB active_anon:7092kB inactive_anon:104kB active_file:40kB inactive_file:164kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1664kB pagetables:616kB bounce:0kB free_pcp:56kB local_pcp:0kB free_cma:0kB [ 134.925871] lowmem_reserve[]: 0 0 0 0 [ 134.925889] Node 0 DMA: 8*4kB (UME) 5*8kB (UME) 0*16kB 2*32kB (ME) 0*64kB 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4104kB [ 134.925961] Node 0 DMA32: 359*4kB (UME) 317*8kB (UME) 175*16kB (UME) 84*32kB (UM) 18*64kB (UME) 10*128kB (M) 6*256kB (UME) 3*512kB (UM) 1*1024kB (E) 4*2048kB (UME) 3*4096kB (M) = 36468kB [ 134.926066] Node 1 DMA32: 296*4kB (UME) 1116*8kB (UME) 556*16kB (UME) 177*32kB (UME) 65*64kB (UME) 13*128kB (ME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 30496kB [ 134.926138] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 134.926143] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 134.926147] 158 total pagecache pages [ 134.926154] 0 pages in swap cache [ 134.926159] Swap cache stats: add 0, delete 0, find 0/0 [ 134.926162] Free swap = 0kB [ 134.926166] Total swap = 0kB [ 134.926170] 524186 pages RAM [ 134.926173] 0 pages HighMem/MovableOnly [ 134.926177] 103968 pages reserved [ 134.950949] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 134.951601] Call Trace: [ 134.951790] dump_stack+0x194/0x257 [ 134.952111] ? arch_local_irq_restore+0x53/0x53 [ 134.952452] ? check_noncircular+0x20/0x20 [ 134.952827] dump_header+0x234/0xa0e [ 134.953109] ? pagefault_out_of_memory+0x152/0x152 [ 134.953543] ? lock_acquire+0x1d5/0x580 [ 134.953834] ? ___ratelimit+0x152/0x630 [ 134.954197] ? do_raw_spin_trylock+0x190/0x190 [ 134.954549] ? mark_held_locks+0xb2/0x100 [ 134.954902] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 134.955308] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 134.955744] ? trace_hardirqs_on+0xd/0x10 [ 134.956034] ? ___ratelimit+0x95/0x630 [ 134.956311] ? idr_get_free+0xff0/0xff0 [ 134.956649] ? lock_downgrade+0x990/0x990 [ 134.956961] ? cred_has_capability+0x1a0/0x3d0 [ 134.957318] oom_kill_process+0x86d/0x13d0 [ 134.957630] ? lock_release+0xd70/0xd70 [ 134.957927] ? oom_evaluate_task+0x480/0x480 [ 134.958285] ? security_capable_noaudit+0x8b/0xc0 [ 134.958649] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 134.959012] ? check_noncircular+0x20/0x20 [ 134.959337] ? has_capability+0x30/0x30 [ 134.959638] ? has_capability_noaudit+0x24/0x30 [ 134.959975] ? oom_badness+0xdf/0xb80 [ 134.960343] ? find_held_lock+0x39/0x1d0 [ 134.960654] ? lock_downgrade+0x990/0x990 [ 134.960973] ? out_of_memory+0x921/0x11d0 [ 134.961581] ? oom_reaper+0x4d0/0x4d0 [ 134.961844] ? lock_release+0xd70/0xd70 [ 134.962116] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 134.962459] ? oom_evaluate_task+0x284/0x480 [ 134.962772] out_of_memory+0x7dd/0x11d0 [ 134.963041] ? trace_hardirqs_on+0xd/0x10 [ 134.963326] ? oom_killer_disable+0x310/0x310 [ 134.963638] ? mutex_trylock+0x23a/0x2d0 [ 134.963916] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 134.964284] ? check_same_owner+0x320/0x320 [ 134.964594] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 134.964965] ? warn_alloc+0x2f0/0x2f0 [ 134.965240] ? save_stack_trace+0x16/0x20 [ 134.965521] ? lock_downgrade+0x990/0x990 [ 134.965815] ? bpf_prog_alloc+0x310/0x310 [ 134.966097] ? __bpf_address_lookup+0x2b0/0x2b0 [ 134.966411] ? check_noncircular+0x20/0x20 [ 134.966712] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 134.967063] ? __free_insn_slot+0x5c0/0x5c0 [ 134.967356] ? unwind_dump+0x4c0/0x4c0 [ 134.967636] ? find_held_lock+0x39/0x1d0 [ 134.967922] ? depot_save_stack+0x12c/0x490 [ 134.968228] ? check_same_owner+0x320/0x320 [ 134.968527] ? __might_sleep+0x95/0x190 [ 134.968809] __alloc_pages_nodemask+0x9f7/0xd80 [ 134.969130] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 134.969470] ? __lock_is_held+0xbc/0x140 [ 134.969766] ? cpus_read_unlock+0x56/0x70 [ 134.970047] ? static_key_slow_inc+0x16b/0x3c0 [ 134.970358] ? kvm_dev_ioctl+0x13e1/0x1840 [ 134.970654] ? mmu_notifier_synchronize+0x20/0x20 [ 134.970984] alloc_pages_current+0xb6/0x1e0 [ 134.971301] kvm_coalesced_mmio_init+0x6d/0x1c0 [ 134.971693] ? coalesced_mmio_write+0x3c0/0x3c0 [ 134.972029] kvm_dev_ioctl+0x637/0x1840 [ 134.972334] ? install_new_memslots+0x420/0x420 [ 134.972674] ? avc_has_extended_perms+0x7fa/0x12c0 [ 134.973016] ? unwind_get_return_address+0x61/0xa0 [ 134.973382] ? avc_ss_reset+0x110/0x110 [ 134.973658] ? putname+0xee/0x130 [ 134.973906] ? save_stack+0xa3/0xd0 [ 134.974155] ? save_stack_trace+0x16/0x20 [ 134.974436] ? save_stack+0x43/0xd0 [ 134.974693] ? kmem_cache_free+0x77/0x280 [ 134.974975] ? putname+0xee/0x130 [ 134.975210] ? do_sys_open+0x31b/0x6d0 [ 134.975501] ? __lock_is_held+0xbc/0x140 [ 134.975855] ? check_same_owner+0x320/0x320 [ 134.976149] ? rcu_note_context_switch+0x710/0x710 [ 134.976487] ? install_new_memslots+0x420/0x420 [ 134.976810] do_vfs_ioctl+0x1b1/0x1530 [ 134.977078] ? _cond_resched+0x14/0x30 [ 134.977344] ? ioctl_preallocate+0x2b0/0x2b0 [ 134.977646] ? selinux_capable+0x40/0x40 [ 134.977931] ? putname+0xf3/0x130 [ 134.978177] ? security_file_ioctl+0x7d/0xb0 [ 134.978475] ? security_file_ioctl+0x89/0xb0 [ 134.978785] SyS_ioctl+0x8f/0xc0 [ 134.979019] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 134.979339] RIP: 0033:0x435369 [ 134.979555] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 134.980082] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 134.980567] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002ba [ 134.981062] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 134.981562] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 134.982109] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 134.983335] Mem-Info: [ 134.984393] active_anon:3048 inactive_anon:42 isolated_anon:0 [ 134.984393] active_file:6 inactive_file:40 isolated_file:0 [ 134.984393] unevictable:0 dirty:0 writeback:0 unstable:0 [ 134.984393] slab_reclaimable:53595 slab_unreclaimable:330084 [ 134.984393] mapped:0 shmem:77 pagetables:297 bounce:0 [ 134.984393] free:17693 free_pcp:30 free_cma:0 [ 134.986712] Node 0 active_anon:5100kB inactive_anon:64kB active_file:12kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 134.988648] Node 1 active_anon:7092kB inactive_anon:104kB active_file:12kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 134.990627] Node 0 DMA free:4104kB min:640kB low:800kB high:960kB active_anon:64kB 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 [ 134.992694] lowmem_reserve[]: 0 886 886 886 [ 134.993148] Node 0 DMA32 free:36436kB min:36536kB low:45668kB high:54800kB active_anon:5036kB inactive_anon:64kB active_file:12kB inactive_file:92kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2240kB pagetables:572kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 134.995165] lowmem_reserve[]: 0 0 0 0 [ 134.995456] Node 1 DMA32 free:30208kB min:30404kB low:38004kB high:45604kB active_anon:7092kB inactive_anon:104kB active_file:12kB inactive_file:168kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1664kB pagetables:616kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 134.997446] lowmem_reserve[]: 0 0 0 0 [ 134.997739] Node 0 DMA: 8*4kB (UME) 5*8kB (UME) 0*16kB 2*32kB (ME) 0*64kB 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4104kB [ 134.998801] Node 0 DMA32: 356*4kB (UME) 317*8kB (UME) 175*16kB (UME) 84*32kB (UM) 18*64kB (UME) 10*128kB (M) 6*256kB (UME) 3*512kB (UM) 1*1024kB (E) 4*2048kB (UME) 3*4096kB (M) = 36456kB [ 135.000086] Node 1 DMA32: 295*4kB (UME) 1117*8kB (UME) 555*16kB (UME) 176*32kB (UME) 66*64kB (UME) 13*128kB (ME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 30516kB [ 135.001227] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 135.001831] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 135.002445] 140 total pagecache pages [ 135.002717] 0 pages in swap cache [ 135.002958] Swap cache stats: add 0, delete 0, find 0/0 [ 135.003351] Free swap = 0kB [ 135.003588] Total swap = 0kB [ 135.004111] 524186 pages RAM [ 135.004327] 0 pages HighMem/MovableOnly [ 135.004604] 103968 pages reserved [ 135.004836] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 135.005484] [ 1511] 0 1511 7186 1942 19 3 0 -1000 udevd [ 135.006117] [ 2896] 0 2896 30583 148 24 3 0 0 rsyslogd [ 135.006742] [ 2935] 0 2935 4725 48 14 3 0 0 cron [ 135.007360] [ 2961] 0 2961 12490 152 29 3 0 -1000 sshd [ 135.007965] [ 2985] 0 2985 3694 42 13 3 0 0 getty [ 135.008587] [ 2986] 0 2986 3694 40 13 3 0 0 getty [ 135.009228] [ 2987] 0 2987 3694 41 12 3 0 0 getty [ 135.009846] [ 2988] 0 2988 3694 41 13 3 0 0 getty [ 135.010478] [ 2989] 0 2989 3694 40 12 3 0 0 getty [ 135.011107] [ 2990] 0 2990 3694 41 12 3 0 0 getty [ 135.011708] [ 2991] 0 2991 3649 40 13 3 0 0 getty [ 135.012336] [ 2993] 0 2993 5337 127 15 3 0 -1000 udevd [ 135.012957] [ 2994] 0 2994 5337 128 15 3 0 -1000 udevd [ 135.013587] [ 3016] 0 3016 17820 196 40 3 0 0 sshd [ 135.014213] [ 3018] 0 3018 271 1 4 2 0 0 syzkaller564189 [ 135.014881] [ 3019] 0 3019 4366 11 5 2 0 0 syzkaller564189 [ 135.015572] [ 3020] 0 3020 4366 11 5 2 0 0 syzkaller564189 [ 135.016262] [ 3021] 0 3021 4366 11 5 2 0 0 syzkaller564189 [ 135.016941] [ 3022] 0 3022 4366 11 5 2 0 0 syzkaller564189 [ 135.017619] [ 3023] 0 3023 4366 11 5 2 0 0 syzkaller564189 [ 135.018310] [ 3024] 0 3024 4366 11 5 2 0 0 syzkaller564189 [ 135.018977] [ 3025] 0 3025 4366 11 5 2 0 0 syzkaller564189 [ 135.019666] [ 3026] 0 3026 4366 11 5 2 0 0 syzkaller564189 [ 135.020356] Out of memory: Kill process 3016 (sshd) score 0 or sacrifice child [ 135.020907] Killed process 3018 (syzkaller564189) total-vm:1084kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 135.065647] syzkaller564189 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=0, oom_score_adj=0 [ 135.066863] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 135.067353] CPU: 2 PID: 3019 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 135.068398] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 135.069112] Call Trace: [ 135.069351] dump_stack+0x194/0x257 [ 135.069681] ? arch_local_irq_restore+0x53/0x53 [ 135.070100] ? check_noncircular+0x20/0x20 [ 135.070485] dump_header+0x234/0xa0e [ 135.070834] ? pagefault_out_of_memory+0x152/0x152 [ 135.071279] ? lock_acquire+0x1d5/0x580 [ 135.071633] ? ___ratelimit+0x152/0x630 [ 135.071992] ? do_raw_spin_trylock+0x190/0x190 [ 135.072400] ? mark_held_locks+0xb2/0x100 [ 135.072768] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 135.073220] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 135.073668] ? trace_hardirqs_on+0xd/0x10 [ 135.074036] ? ___ratelimit+0x95/0x630 [ 135.074383] ? idr_get_free+0xff0/0xff0 [ 135.074735] ? lock_downgrade+0x990/0x990 [ 135.075102] ? cred_has_capability+0x1a0/0x3d0 [ 135.075512] oom_kill_process+0x86d/0x13d0 [ 135.075889] ? lock_release+0xd70/0xd70 [ 135.076246] ? oom_evaluate_task+0x480/0x480 [ 135.076635] ? security_capable_noaudit+0x8b/0xc0 [ 135.077070] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 135.077519] ? check_noncircular+0x20/0x20 [ 135.077892] ? has_capability+0x30/0x30 [ 135.078252] ? has_capability_noaudit+0x24/0x30 [ 135.078662] ? oom_badness+0xdf/0xb80 [ 135.079004] ? find_held_lock+0x39/0x1d0 [ 135.079370] ? lock_downgrade+0x990/0x990 [ 135.079741] ? out_of_memory+0x921/0x11d0 [ 135.080107] ? oom_reaper+0x4d0/0x4d0 [ 135.080446] ? lock_release+0xd70/0xd70 [ 135.080798] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 135.081249] ? oom_evaluate_task+0x284/0x480 [ 135.081641] out_of_memory+0x7dd/0x11d0 [ 135.081991] ? trace_hardirqs_on+0xd/0x10 [ 135.082363] ? oom_killer_disable+0x310/0x310 [ 135.082759] ? mutex_trylock+0x23a/0x2d0 [ 135.083121] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 135.083596] ? check_same_owner+0x320/0x320 [ 135.083987] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 135.084447] ? warn_alloc+0x2f0/0x2f0 [ 135.084784] ? SyS_ioctl+0x8f/0xc0 [ 135.085106] ? warn_alloc+0x2f0/0x2f0 [ 135.085442] ? save_stack_trace+0x16/0x20 [ 135.085812] ? check_noncircular+0x20/0x20 [ 135.086190] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 135.086644] ? find_held_lock+0x39/0x1d0 [ 135.087007] ? find_held_lock+0x39/0x1d0 [ 135.087390] ? check_same_owner+0x320/0x320 [ 135.087776] ? __might_sleep+0x95/0x190 [ 135.088129] __alloc_pages_nodemask+0x9f7/0xd80 [ 135.088540] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 135.089581] ? __alloc_pages_nodemask+0xae5/0xd80 [ 135.090019] ? find_held_lock+0x39/0x1d0 [ 135.090392] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 135.090858] ? cache_grow_begin+0x31b/0x400 [ 135.091252] cache_grow_begin+0x86/0x400 [ 135.091623] fallback_alloc+0x150/0x2b0 [ 135.091987] ____cache_alloc_node+0x1cf/0x1e0 [ 135.092396] kmem_cache_alloc_trace+0x27d/0x750 [ 135.092812] ? lockdep_init_map+0x3d/0x70 [ 135.093205] kvm_dev_ioctl+0x1267/0x1840 [ 135.093577] ? install_new_memslots+0x420/0x420 [ 135.094006] ? avc_has_extended_perms+0x7fa/0x12c0 [ 135.094447] ? unwind_get_return_address+0x61/0xa0 [ 135.094896] ? avc_ss_reset+0x110/0x110 [ 135.095248] ? putname+0xee/0x130 [ 135.095564] ? save_stack+0xa3/0xd0 [ 135.095894] ? save_stack_trace+0x16/0x20 [ 135.096266] ? save_stack+0x43/0xd0 [ 135.096594] ? kmem_cache_free+0x77/0x280 [ 135.096970] ? putname+0xee/0x130 [ 135.097280] ? do_sys_open+0x31b/0x6d0 [ 135.097634] ? __lock_is_held+0xbc/0x140 [ 135.098011] ? check_same_owner+0x320/0x320 [ 135.098402] ? rcu_note_context_switch+0x710/0x710 [ 135.098845] ? install_new_memslots+0x420/0x420 [ 135.099266] do_vfs_ioctl+0x1b1/0x1530 [ 135.099617] ? _cond_resched+0x14/0x30 [ 135.099974] ? ioctl_preallocate+0x2b0/0x2b0 [ 135.100377] ? selinux_capable+0x40/0x40 [ 135.100746] ? putname+0xf3/0x130 [ 135.101077] ? security_file_ioctl+0x7d/0xb0 [ 135.101473] ? security_file_ioctl+0x89/0xb0 [ 135.101875] SyS_ioctl+0x8f/0xc0 [ 135.102184] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 135.102610] RIP: 0033:0x435369 [ 135.102897] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 135.103583] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 135.104229] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002e5 [ 135.104878] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 135.105523] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 135.106170] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 135.106859] Mem-Info: [ 135.122435] active_anon:3043 inactive_anon:42 isolated_anon:0 [ 135.122435] active_file:42 inactive_file:14 isolated_file:21 [ 135.122435] unevictable:0 dirty:0 writeback:0 unstable:0 [ 135.122435] slab_reclaimable:53596 slab_unreclaimable:330084 [ 135.122435] mapped:18 shmem:77 pagetables:294 bounce:0 [ 135.122435] free:17726 free_pcp:0 free_cma:0 [ 135.124892] Node 0 active_anon:5104kB inactive_anon:64kB active_file:0kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):64kB mapped:12kB dirty:0kB writeback:0kB shmem:112kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 135.126756] Node 1 active_anon:7068kB inactive_anon:104kB active_file:40kB inactive_file:272kB unevictable:0kB isolated(anon):0kB isolated(file):4kB mapped:36kB dirty:0kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 135.128573] Node 0 DMA free:4104kB min:640kB low:800kB high:960kB active_anon:64kB 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 [ 135.130392] lowmem_reserve[]: 0 886 886 886 [ 135.130703] Node 0 DMA32 free:36352kB min:36536kB low:45668kB high:54800kB active_anon:5040kB inactive_anon:64kB active_file:0kB inactive_file:124kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2208kB pagetables:580kB bounce:0kB free_pcp:360kB local_pcp:0kB free_cma:0kB [ 135.133466] lowmem_reserve[]: 0 0 0 0 [ 135.133744] Node 1 DMA32 free:30152kB min:30404kB low:38004kB high:45604kB active_anon:7064kB inactive_anon:104kB active_file:52kB inactive_file:212kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1664kB pagetables:596kB bounce:0kB free_pcp:356kB local_pcp:0kB free_cma:0kB [ 135.136419] lowmem_reserve[]: 0 0 0 0 [ 135.136712] Node 0 DMA: 8*4kB (UME) 5*8kB (UME) 0*16kB 2*32kB (ME) 0*64kB 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4104kB [ 135.138119] Node 0 DMA32: 312*4kB (UM) 313*8kB (UME) 174*16kB (UM) 85*32kB (UM) 17*64kB (UM) 10*128kB (M) 6*256kB (UME) 3*512kB (UM) 1*1024kB (E) 4*2048kB (UME) 3*4096kB (M) = 36200kB [ 135.139367] Node 1 DMA32: 153*4kB (UME) 1114*8kB (UME) 554*16kB (UME) 177*32kB (UME) 66*64kB (UME) 13*128kB (ME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 29940kB [ 135.140747] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 135.141369] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 135.142068] 184 total pagecache pages [ 135.142325] 0 pages in swap cache [ 135.142572] Swap cache stats: add 0, delete 0, find 0/0 [ 135.142980] Free swap = 0kB [ 135.143226] Total swap = 0kB [ 135.143456] 524186 pages RAM [ 135.143727] 0 pages HighMem/MovableOnly [ 135.144062] 103968 pages reserved [ 135.144352] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 135.144993] [ 1511] 0 1511 7186 1942 19 3 0 -1000 udevd [ 135.145665] [ 2896] 0 2896 30583 148 24 3 0 0 rsyslogd [ 135.146307] [ 2935] 0 2935 4725 48 14 3 0 0 cron [ 135.146899] [ 2961] 0 2961 12490 152 29 3 0 -1000 sshd [ 135.147514] [ 2985] 0 2985 3694 42 13 3 0 0 getty [ 135.148131] [ 2986] 0 2986 3694 40 13 3 0 0 getty [ 135.148760] [ 2987] 0 2987 3694 41 12 3 0 0 getty [ 135.149458] [ 2988] 0 2988 3694 41 13 3 0 0 getty [ 135.150078] [ 2989] 0 2989 3694 40 12 3 0 0 getty [ 135.150745] [ 2990] 0 2990 3694 41 12 3 0 0 getty [ 135.151433] [ 2991] 0 2991 3649 40 13 3 0 0 getty [ 135.152089] [ 2993] 0 2993 5337 127 15 3 0 -1000 udevd [ 135.152743] [ 2994] 0 2994 5337 128 15 3 0 -1000 udevd [ 135.153700] [ 3016] 0 3016 17820 196 40 3 0 0 sshd [ 135.154303] [ 3019] 0 3019 4366 11 5 2 0 0 syzkaller564189 [ 135.154949] [ 3020] 0 3020 4366 11 5 2 0 0 syzkaller564189 [ 135.155612] [ 3021] 0 3021 4366 11 5 2 0 0 syzkaller564189 [ 135.156277] [ 3022] 0 3022 4366 11 5 2 0 0 syzkaller564189 [ 135.156927] [ 3023] 0 3023 4366 11 5 2 0 0 syzkaller564189 [ 135.157614] [ 3024] 0 3024 4366 11 5 2 0 0 syzkaller564189 [ 135.158385] [ 3025] 0 3025 4366 43 5 2 0 0 syzkaller564189 [ 135.159073] [ 3026] 0 3026 4366 11 5 2 0 0 syzkaller564189 [ 135.159760] Out of memory: Kill process 3016 (sshd) score 0 or sacrifice child [ 135.160336] Killed process 3016 (sshd) total-vm:71280kB, anon-rss:780kB, file-rss:0kB, shmem-rss:4kB [ 135.163676] oom_reaper: reaped process 3016 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB [ 135.231307] syzkaller564189 invoked oom-killer: gfp_mask=0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null), order=0, oom_score_adj=0 [ 135.232581] syzkaller564189 cpuset=/ mems_allowed=0-1 [ 135.232998] CPU: 3 PID: 3024 Comm: syzkaller564189 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 135.233969] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 135.234651] Call Trace: [ 135.234970] dump_stack+0x194/0x257 [ 135.235362] ? arch_local_irq_restore+0x53/0x53 [ 135.236068] ? check_noncircular+0x20/0x20 [ 135.236526] dump_header+0x234/0xa0e [ 135.236946] ? pagefault_out_of_memory+0x152/0x152 [ 135.237472] ? lock_acquire+0x1d5/0x580 [ 135.237892] ? ___ratelimit+0x152/0x630 [ 135.238320] ? do_raw_spin_trylock+0x190/0x190 [ 135.239332] ? mark_held_locks+0xb2/0x100 [ 135.239843] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 135.240455] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 135.241083] ? trace_hardirqs_on+0xd/0x10 [ 135.241602] ? ___ratelimit+0x95/0x630 [ 135.242072] ? idr_get_free+0xff0/0xff0 [ 135.242549] ? lock_downgrade+0x990/0x990 [ 135.243055] ? cred_has_capability+0x1a0/0x3d0 [ 135.243688] oom_kill_process+0x86d/0x13d0 [ 135.244207] ? lock_release+0xd70/0xd70 [ 135.244697] ? oom_evaluate_task+0x480/0x480 [ 135.245241] ? security_capable_noaudit+0x8b/0xc0 [ 135.245833] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 135.246444] ? check_noncircular+0x20/0x20 [ 135.246810] ? has_capability+0x30/0x30 [ 135.247163] ? has_capability_noaudit+0x24/0x30 [ 135.247540] ? oom_badness+0xdf/0xb80 [ 135.247857] ? find_held_lock+0x39/0x1d0 [ 135.248209] ? lock_downgrade+0x990/0x990 [ 135.248556] ? out_of_memory+0x921/0x11d0 [ 135.248894] ? oom_reaper+0x4d0/0x4d0 [ 135.249224] ? lock_release+0xd70/0xd70 [ 135.249548] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 135.249963] ? oom_evaluate_task+0x284/0x480 [ 135.250340] out_of_memory+0x7dd/0x11d0 [ 135.250673] ? oom_killer_disable+0x310/0x310 [ 135.251050] ? mutex_trylock+0x23a/0x2d0 [ 135.251384] ? rcu_pm_notify+0xc0/0xc0 [ 135.251711] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 135.252176] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 135.252609] ? warn_alloc+0x2f0/0x2f0 [ 135.252952] ? save_stack_trace+0x16/0x20 [ 135.253306] ? lock_downgrade+0x990/0x990 [ 135.253680] ? bpf_prog_alloc+0x310/0x310 [ 135.254073] ? __bpf_address_lookup+0x2b0/0x2b0 [ 135.254492] ? check_noncircular+0x20/0x20 [ 135.254878] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 135.255361] ? __free_insn_slot+0x5c0/0x5c0 [ 135.255751] ? unwind_dump+0x4c0/0x4c0 [ 135.256126] ? find_held_lock+0x39/0x1d0 [ 135.256506] ? depot_save_stack+0x12c/0x490 [ 135.256918] ? check_same_owner+0x320/0x320 [ 135.257334] ? __might_sleep+0x95/0x190 [ 135.257695] __alloc_pages_nodemask+0x9f7/0xd80 [ 135.258136] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 135.258591] ? __lock_is_held+0xbc/0x140 [ 135.258975] ? cpus_read_unlock+0x56/0x70 [ 135.259369] ? static_key_slow_inc+0x16b/0x3c0 [ 135.260283] ? kvm_dev_ioctl+0x13e1/0x1840 [ 135.260693] ? mmu_notifier_synchronize+0x20/0x20 [ 135.261184] alloc_pages_current+0xb6/0x1e0 [ 135.261600] kvm_coalesced_mmio_init+0x6d/0x1c0 [ 135.262045] ? coalesced_mmio_write+0x3c0/0x3c0 [ 135.262503] kvm_dev_ioctl+0x637/0x1840 [ 135.262891] ? install_new_memslots+0x420/0x420 [ 135.263352] ? avc_has_extended_perms+0x7fa/0x12c0 [ 135.263820] ? unwind_get_return_address+0x61/0xa0 [ 135.264326] ? avc_ss_reset+0x110/0x110 [ 135.264687] ? putname+0xee/0x130 [ 135.265002] ? save_stack+0xa3/0xd0 [ 135.265330] ? save_stack_trace+0x16/0x20 [ 135.265703] ? save_stack+0x43/0xd0 [ 135.266028] ? kmem_cache_free+0x77/0x280 [ 135.266400] ? putname+0xee/0x130 [ 135.266707] ? do_sys_open+0x31b/0x6d0 [ 135.267064] ? __lock_is_held+0xbc/0x140 [ 135.267447] ? check_same_owner+0x320/0x320 [ 135.267841] ? rcu_note_context_switch+0x710/0x710 [ 135.268333] ? install_new_memslots+0x420/0x420 [ 135.268755] do_vfs_ioctl+0x1b1/0x1530 [ 135.269109] ? _cond_resched+0x14/0x30 [ 135.269466] ? ioctl_preallocate+0x2b0/0x2b0 [ 135.269864] ? selinux_capable+0x40/0x40 [ 135.270235] ? putname+0xf3/0x130 [ 135.270562] ? security_file_ioctl+0x7d/0xb0 [ 135.270959] ? security_file_ioctl+0x89/0xb0 [ 135.271359] SyS_ioctl+0x8f/0xc0 [ 135.271668] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 135.272133] RIP: 0033:0x435369 [ 135.272423] RSP: 002b:00007ffc0f94f3e8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 135.273111] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000435369 [ 135.273757] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000352 [ 135.274397] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 135.275041] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 135.275679] R13: 0000000000401800 R14: 0000000000401890 R15: 0000000000000000 [ 135.276414] Mem-Info: [ 135.277521] active_anon:2847 inactive_anon:42 isolated_anon:0 [ 135.277521] active_file:16 inactive_file:36 isolated_file:0 [ 135.277521] unevictable:0 dirty:0 writeback:0 unstable:0 [ 135.277521] slab_reclaimable:53613 slab_unreclaimable:330164 Connection to localhost closed by remote host. [ 135.277521] mapped:2 shmem:77 pagetables:294 bounce:0 [ 135.277521] free:17533 free_pcp:263 free_cma:0 [ 135.280545] sshd (3016) used greatest stack depth: 9000 bytes left [ 135.283072] Node 0 active_anon:4324kB inactive_anon:60kB active_file:48kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:108kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 135.288394] Node 1 active_anon:7064kB inactive_anon:104kB active_file:104kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 135.291051] Node 0 DMA free:4104kB min:640kB low:800kB high:960kB active_anon:64kB 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 [ 135.293374] lowmem_reserve[]: 0 886 886 886 [ 135.293802] Node 0 DMA32 free:36332kB min:36536kB low:45668kB high:54800kB active_anon:4260kB inactive_anon:60kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2208kB pagetables:420kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 135.296261] lowmem_reserve[]: 0 0 0 0 [ 135.296631] Node 1 DMA32 free:30200kB min:30404kB low:38004kB high:45604kB active_anon:7064kB inactive_anon:104kB active_file:124kB inactive_file:96kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1632kB pagetables:596kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 135.299141] lowmem_reserve[]: 0 0 0 0 [ 135.299585] Node 0 DMA: 8*4kB (UME) 5*8kB (UME) 0*16kB 2*32kB (ME) 0*64kB 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4104kB [ 135.301106] Node 0 DMA32: 248*4kB (UME) 291*8kB (UM) 176*16kB (UME) 94*32kB (UME) 31*64kB (UM) 12*128kB (ME) 4*256kB (M) 3*512kB (UM) 1*1024kB (E) 4*2048kB (UME) 3*4096kB (M) = 36728kB [ 135.303161] Node 1 DMA32: 243*4kB (ME) 1109*8kB (UME) 553*16kB (UME) 177*32kB (UME) 67*64kB (UME) 13*128kB (ME) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 30308kB [ 135.304595] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 135.305381] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 135.306297] 230 total pagecache pages [ 135.306639] 0 pages in swap cache [ 135.306948] Swap cache stats: add 0, delete 0, find 0/0 [ 135.307443] Free swap = 0kB [ 135.307718] Total swap = 0kB [ 135.307990] 524186 pages RAM [ 135.308281] 0 pages HighMem/MovableOnly [ 135.308634] 103968 pages reserved [ 135.308950] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 135.309882] [ 1511] 0 1511 7186 1942 19 3 0 -1000 udevd [ 135.310682] [ 2896] 0 2896 30583 148 24 3 0 0 rsyslogd [ 135.311505] [ 2935] 0 2935 4725 48 14 3 0 0 cron [ 135.312294] [ 2961] 0 2961 12490 152 29 3 0 -1000 sshd [ 135.313088] [ 2985] 0 2985 3694 42 13 3 0 0 getty [ 135.314047] [ 2986] 0 2986 3694 40 13 3 0 0 getty [ 135.314983] [ 2987] 0 2987 3694 41 12 3 0 0 getty [ 135.315945] [ 2988] 0 2988 3694 41 13 3 0 0 getty [ 135.316794] [ 2989] 0 2989 3694 40 12 3 0 0 getty [ 135.317647] [ 2990] 0 2990 3694 41 12 3 0 0 getty [ 135.318499] [ 2991] 0 2991 3649 40 13 3 0 0 getty [ 135.319349] [ 2993] 0 2993 5337 127 15 3 0 -1000 udevd [ 135.320203] [ 2994] 0 2994 5337 128 15 3 0 -1000 udevd [ 135.321059] [ 3020] 0 3020 4366 11 5 2 0 0 syzkaller564189 [ 135.321970] [ 3021] 0 3021 4366 11 5 2 0 0 syzkaller564189 [ 135.322898] [ 3022] 0 3022 4366 11 5 2 0 0 syzkaller564189 [ 135.323847] [ 3023] 0 3023 4366 11 5 2 0 0 syzkaller564189 [ 135.325262] [ 3024] 0 3024 4366 11 5 2 0 0 syzkaller564189 [ 135.326315] [ 3025] 0 3025 4366 11 5 2 0 0 syzkaller564189 [ 135.327370] [ 3026] 0 3026 4366 11 5 2 0 0 syzkaller564189 [ 135.328299] Out of memory: Kill process 2896 (rsyslogd) score 0 or sacrifice child [ 135.329081] Killed process 2896 (rsyslogd) total-vm:122332kB, anon-rss:592kB, file-rss:0kB, shmem-rss:0kB [ 135.332501] oom_reaper: reaped process 2896 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 135.713054] [ 135.713190] ====================================================== [ 135.713632] WARNING: possible circular locking dependency detected [ 135.714076] 4.13.0-rc6-next-20170824+ #8 Not tainted [ 135.714430] ------------------------------------------------------ [ 135.714871] kworker/0:1/37 is trying to acquire lock: [ 135.715230] ((shepherd).work){+.+.}, at: [] process_one_work+0xb2c/0x1be0 [ 135.715833] [ 135.715833] but now in release context of a crosslock acquired at the following: [ 135.716455] ((complete)&rcu.completion){+.+.}, at: [] __synchronize_srcu+0x1b5/0x250 [ 135.717128] [ 135.717128] which lock already depends on the new lock. [ 135.717128] [ 135.717698] [ 135.717698] the existing dependency chain (in reverse order) is: [ 135.718219] [ 135.718219] -> #2 ((complete)&rcu.completion){+.+.}: [ 135.718682] __lock_acquire+0x3286/0x4620 [ 135.719007] lock_acquire+0x1d5/0x580 [ 135.719310] wait_for_completion+0xc8/0x770 [ 135.719649] __synchronize_srcu+0x1b5/0x250 [ 135.719985] synchronize_srcu+0x1a3/0x560 [ 135.720304] quarantine_remove_cache+0xd7/0xf0 [ 135.720661] kasan_cache_shrink+0x9/0x10 [ 135.720980] kmem_cache_shrink+0x15/0x30 [ 135.721300] acpi_os_purge_cache+0x15/0x20 [ 135.721633] acpi_purge_cached_objects+0x38/0xc9 [ 135.722003] acpi_initialize_objects+0xc5/0x112 [ 135.722366] acpi_init+0x23c/0x8e6 [ 135.722652] do_one_initcall+0x9e/0x330 [ 135.722966] kernel_init_freeable+0x469/0x521 [ 135.723315] kernel_init+0x13/0x172 [ 135.723605] ret_from_fork+0x2a/0x40 [ 135.723897] [ 135.723897] -> #1 (cpu_hotplug_lock.rw_sem){++++}: [ 135.724346] __lock_acquire+0x3286/0x4620 [ 135.724672] lock_acquire+0x1d5/0x580 [ 135.724976] cpus_read_lock+0x42/0x90 [ 135.725278] vmstat_shepherd+0x3d/0x1b0 [ 135.725591] process_one_work+0xbfd/0x1be0 [ 135.725925] worker_thread+0x223/0x1860 [ 135.726239] kthread+0x39c/0x470 [ 135.726510] ret_from_fork+0x2a/0x40 [ 135.726804] [ 135.726804] -> #0 ((shepherd).work){+.+.}: [ 135.727202] process_one_work+0xba5/0x1be0 [ 135.727532] worker_thread+0x223/0x1860 [ 135.727844] kthread+0x39c/0x470 [ 135.728117] ret_from_fork+0x2a/0x40 [ 135.728408] 0xffffffffffffffff [ 135.728672] [ 135.728672] other info that might help us debug this: [ 135.728672] [ 135.729607] Chain exists of: [ 135.729607] (shepherd).work --> cpu_hotplug_lock.rw_sem --> (complete)&rcu.completion [ 135.729607] [ 135.730511] Possible unsafe locking scenario by crosslock: [ 135.730511] [ 135.730994] CPU0 CPU1 [ 135.731301] ---- ---- [ 135.731608] lock(cpu_hotplug_lock.rw_sem); [ 135.731908] lock((complete)&rcu.completion); [ 135.732213] lock((shepherd).work); [ 135.732625] unlock((complete)&rcu.completion); [ 135.733123] [ 135.733123] *** DEADLOCK *** [ 135.733123] [ 135.733531] 3 locks held by kworker/0:1/37: [ 135.733824] #0: ("events_power_efficient"){.+.+}, at: [] process_one_work+0xad4/0x1be0 [ 135.734474] #1: ((&(&sdp->work)->work)){+.+.}, at: [] process_one_work+0xb2c/0x1be0 [ 135.735113] #2: (&x->wait#5){....}, at: [] complete+0x18/0x80 [ 135.735620] [ 135.735620] stack backtrace: [ 135.735931] CPU: 0 PID: 37 Comm: kworker/0:1 Not tainted 4.13.0-rc6-next-20170824+ #8 [ 135.736455] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 135.737017] Workqueue: events_power_efficient srcu_invoke_callbacks [ 135.737439] Call Trace: [ 135.737615] dump_stack+0x194/0x257 [ 135.737867] ? arch_local_irq_restore+0x53/0x53 [ 135.738181] print_circular_bug+0x503/0x710 [ 135.738471] ? print_circular_bug_entry+0xb0/0xb0 [ 135.738803] check_prev_add+0x865/0x1520 [ 135.739075] ? graph_lock+0x170/0x170 [ 135.739332] ? check_usage+0xb70/0xb70 [ 135.739594] ? hlock_class+0x140/0x140 [ 135.739861] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 135.740207] lock_commit_crosslock+0xe73/0x1d10 [ 135.740517] ? lock_commit_crosslock+0xe73/0x1d10 [ 135.740854] ? check_prev_add+0x1520/0x1520 [ 135.741145] ? lock_acquire+0x1d5/0x580 [ 135.741410] ? complete+0x18/0x80 [ 135.741645] ? lock_release+0xd70/0xd70 [ 135.741920] ? do_raw_spin_trylock+0x190/0x190 [ 135.742227] complete+0x24/0x80 [ 135.742448] wakeme_after_rcu+0xd/0x10 [ 135.742708] srcu_invoke_callbacks+0x280/0x4d0 [ 135.743015] ? srcu_queue_delayed_work_on+0x240/0x240 [ 135.743360] ? __lock_is_held+0xbc/0x140 [ 135.743634] process_one_work+0xbfd/0x1be0 [ 135.743915] ? check_noncircular+0x20/0x20 [ 135.744199] ? pwq_dec_nr_in_flight+0x450/0x450 [ 135.744510] ? finish_task_switch+0x1d3/0x740 [ 135.744809] ? finish_task_switch+0x1aa/0x740 [ 135.745119] ? __sched_text_start+0x8/0x8 [ 135.745396] ? check_noncircular+0x20/0x20 [ 135.745679] ? __unwind_start+0x169/0x330 [ 135.745957] ? find_held_lock+0x39/0x1d0 [ 135.746231] ? lock_acquire+0x1d5/0x580 [ 135.746496] ? worker_thread+0x4a3/0x1860 [ 135.746774] ? lock_release+0xd70/0xd70 [ 135.747039] ? do_raw_spin_trylock+0x190/0x190 [ 135.747370] ? pr_cont_work+0x130/0x130 [ 135.747639] worker_thread+0x223/0x1860 [ 135.747909] ? process_one_work+0x1be0/0x1be0 [ 135.748209] ? check_noncircular+0x20/0x20 [ 135.748492] ? _raw_spin_unlock_irq+0x27/0x70 [ 135.748792] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 135.749133] ? trace_hardirqs_on+0xd/0x10 [ 135.749410] ? _raw_spin_unlock_irq+0x27/0x70 [ 135.749710] ? finish_task_switch+0x1d3/0x740 [ 135.750367] ? finish_task_switch+0x1aa/0x740 [ 135.750668] ? preempt_notifier_dec+0x20/0x20 [ 135.750968] ? __schedule+0x8f0/0x2070 [ 135.751229] ? __x2apic_send_IPI_dest.constprop.7+0x5b/0x80 [ 135.751608] ? try_to_wake_up+0xf9/0x1600 [ 135.751884] ? find_held_lock+0x39/0x1d0 [ 135.752155] ? lock_downgrade+0x990/0x990 [ 135.752431] ? complete+0x18/0x80 [ 135.752662] ? __schedule+0x2070/0x2070 [ 135.752939] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 135.753277] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 135.753608] ? trace_hardirqs_on+0xd/0x10 [ 135.753883] ? __kthread_parkme+0x173/0x240 [ 135.754171] kthread+0x39c/0x470 [ 135.754394] ? process_one_work+0x1be0/0x1be0 [ 135.754692] ? kthread_create_on_node+0x100/0x100 [ 135.755013] ret_from_fork+0x2a/0x40