task_struct 4474KB 5126KB cred 165KB 352KB anon_vma_chain 195KB 358KB anon_vma 234KB 430KB pid 219KB 433KB Acpi-Operand 227KB 336KB Acpi-ParseExt 94KB 126KB Acpi-Parse 47KB 86KB Acpi-State 31KB 66KB Acpi-Namespace 60KB 60KB numa_policy 15KB 15KB perf_event 62KB 62KB trace_event_file 528KB 528KB ftrace_event_field 1004KB 1004KB pool_workqueue 1888KB 2016KB task_group 46KB 46KB maple_node 521KB 1360KB mm_struct 569KB 673KB vmap_area 330KB 1073KB debug_objects_cache 2388KB 2786KB page->ptl 93KB 153KB kmalloc-cg-8k 2384KB 2576KB kmalloc-cg-4k 12856KB 14336KB kmalloc-cg-2k 8600KB 10016KB kmalloc-cg-1k 2454KB 3116KB kmalloc-cg-512 1103KB 1296KB kmalloc-cg-256 390KB 472KB kmalloc-cg-128 239KB 260KB kmalloc-cg-64 91KB 116KB kmalloc-cg-32 74KB 176KB kmalloc-cg-16 17KB 28KB kmalloc-cg-8 32KB 36KB kmalloc-cg-192 79KB 100KB kmalloc-cg-96 81KB 96KB kmalloc-8k 5984KB 6464KB kmalloc-4k 38360KB 38432KB kmalloc-2k 13568KB 15840KB kmalloc-1k 7186KB 8864KB kmalloc-512 8918KB 9616KB kmalloc-256 4261KB 4264KB kmalloc-128 1435KB 1564KB kmalloc-64 5248KB 6792KB kmalloc-32 1709KB 2048KB kmalloc-16 467KB 492KB kmalloc-8 452KB 588KB kmalloc-192 1586KB 1844KB kmalloc-96 2551KB 3080KB kmem_cache_node 220KB 224KB kmem_cache 195KB 195KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 1 UID: 0 PID: 4681 Comm: kworker/u32:12 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120 vpanic+0x640/0x6f0 kernel/panic.c:489 panic+0xca/0xd0 kernel/panic.c:626 out_of_memory+0x16e6/0x1700 mm/oom_kill.c:1182 __alloc_pages_may_oom mm/page_alloc.c:4092 [inline] __alloc_pages_slowpath mm/page_alloc.c:4897 [inline] __alloc_frozen_pages_noprof+0x1dbc/0x2430 mm/page_alloc.c:5223 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486 alloc_slab_page mm/slub.c:3075 [inline] allocate_slab mm/slub.c:3256 [inline] new_slab+0x2e1/0x430 mm/slub.c:3302 ___slab_alloc+0xe18/0x1c90 mm/slub.c:4656 __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4779 __slab_alloc_node mm/slub.c:4855 [inline] slab_alloc_node mm/slub.c:5251 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_node_track_caller_noprof+0x4d6/0x930 mm/slub.c:5764 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:608 __alloc_skb+0x186/0x410 net/core/skbuff.c:690 alloc_skb include/linux/skbuff.h:1383 [inline] nlmsg_new include/net/netlink.h:1055 [inline] rtmsg_ifinfo_build_skb+0x81/0x280 net/core/rtnetlink.c:4407 rtmsg_ifinfo_event net/core/rtnetlink.c:4449 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:4439 [inline] rtmsg_ifinfo+0x9f/0x1a0 net/core/rtnetlink.c:4458 netif_close_many+0x2fc/0x630 net/core/dev.c:1784 netif_close_many_and_unlock+0x24/0x270 net/core/dev.c:12283 unregister_netdevice_many_notify+0x38f/0x2590 net/core/dev.c:12347 unregister_netdevice_many net/core/dev.c:12446 [inline] unregister_netdevice_queue net/core/dev.c:12260 [inline] unregister_netdevice_queue+0x305/0x3c0 net/core/dev.c:12250 unregister_netdevice include/linux/netdevice.h:3405 [inline] nsim_destroy+0x1a0/0x830 drivers/net/netdevsim/netdev.c:1180 __nsim_dev_port_del+0x189/0x240 drivers/net/netdevsim/dev.c:1528 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1540 [inline] nsim_dev_reload_destroy+0x10a/0x4d0 drivers/net/netdevsim/dev.c:1763 nsim_dev_reload_down+0x66/0xd0 drivers/net/netdevsim/dev.c:1038 devlink_reload+0x1a1/0x7c0 net/devlink/dev.c:461 devlink_pernet_pre_exit+0x1a0/0x2b0 net/devlink/core.c:509 ops_pre_exit_list net/core/net_namespace.c:161 [inline] ops_undo_list+0x187/0xab0 net/core/net_namespace.c:234 cleanup_net+0x41b/0x830 net/core/net_namespace.c:696 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Kernel Offset: disabled Rebooting in 86400 seconds..