WARNING: ODEBUG bug in del

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	WARNING: ODEBUG bug in del_timer	C		inconclusive	74	1778d	2188d	0/1	upstream: reported C repro on 2019/04/13 05:07
upstream	WARNING: ODEBUG bug in del_timer (2) net s390	C			6	2519d	2520d	8/28	fixed on 2018/07/09 18:05
upstream	WARNING: ODEBUG bug in del_timer (3) net	syz	error	error	46	2151d	2164d	0/28	auto-obsoleted due to no activity on 2022/09/06 02:49
upstream	WARNING: ODEBUG bug in del_timer net s390	C			200	2520d	2537d	5/28	fixed on 2018/05/16 09:57

0 pages cma reserved Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB ------------[ cut here ]------------ Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) WARNING: CPU: 1 PID: 14492 at lib/debugobjects.c:325 debug_print_object+0x168/0x250 lib/debugobjects.c:325 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 14492 Comm: syz-executor.2 Not tainted 4.19.63 #37 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x263/0x507 kernel/panic.c:185 Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 3002 total pagecache pages __warn.cold+0x20/0x4a kernel/panic.c:540 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 0 pages in swap cache do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1035 RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:325 Code: dd 80 4e 82 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 80 4e 82 87 48 c7 c7 c0 43 82 87 e8 16 22 19 fe <0f> 0b 83 05 6b b5 17 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffff8881b1446c70 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8155d556 RDI: ffffed1036288d80 RBP: ffff8881b1446cb0 R08: ffff88803defa680 R09: ffffed1015d23ee3 R10: ffffed1015d23ee2 R11: ffff8880ae91f717 R12: 0000000000000001 R13: ffffffff887ac380 R14: ffffffff815b4ab0 R15: ffff8880484c6500 debug_object_assert_init lib/debugobjects.c:694 [inline] debug_object_assert_init+0x23a/0x2f0 lib/debugobjects.c:665 Swap cache stats: add 0, delete 0, find 0/0 debug_timer_assert_init kernel/time/timer.c:724 [inline] debug_assert_init kernel/time/timer.c:776 [inline] del_timer+0x7c/0x120 kernel/time/timer.c:1198 try_to_grab_pending+0x2d7/0x710 kernel/workqueue.c:1223 __cancel_work_timer+0xc4/0x520 kernel/workqueue.c:2966 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 338856 pages reserved cancel_delayed_work_sync+0x1b/0x20 kernel/workqueue.c:3139 0 pages cma reserved batadv_nc_mesh_free+0x46/0x11e net/batman-adv/network-coding.c:1891 batadv_mesh_free+0x82/0x170 net/batman-adv/main.c:242 batadv_mesh_init+0x5f0/0x6c0 net/batman-adv/main.c:223 batadv_softif_init_late+0xc0f/0xe90 net/batman-adv/soft-interface.c:863 register_netdevice+0x2fd/0xff0 net/core/dev.c:8462 Unreclaimable slab info: Name Used Total rtnl_newlink+0x140c/0x1610 net/core/rtnetlink.c:3124 pid_2 40KB 160KB batadv_tt_change_cache 7KB 15KB batadv_tl_cache 9KB 20KB TIPC 31KB 43KB SCTPv6 30KB 55KB DCCPv6 17KB 43KB DCCP 23KB 41KB rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:4747 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 bridge_fdb_cache 19KB 35KB fib6_nodes 200KB 256KB rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4765 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x537/0x720 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 ip6_dst_cache 837KB 941KB RAWv6 144KB 156KB sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 __sys_sendto+0x262/0x380 net/socket.c:1787 UDPv6 3KB 3KB TCPv6 29KB 35KB nf_conntrack 0KB 3KB sd_ext_cdb 0KB 7KB __do_sys_sendto net/socket.c:1799 [inline] __se_sys_sendto net/socket.c:1795 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1795 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413673 Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 1d 2c 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff RSP: 002b:00007ffe27fc5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000413673 RDX: 000000000000003c RSI: 0000000000a70070 RDI: 0000000000000003 RBP: 00007ffe27fc5178 R08: 00007ffe27fc5040 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00000000004bea8a R14: 00007ffe27fc5170 R15: 00000000004bea83 Kernel Offset: disabled Rebooting in 86400 seconds..