IPVS: ftp: loaded support on port[0] = 21 loop4: loop4: partition table partially beyond EOD, truncated watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u4:0:7] Modules linked in: irq event stamp: 17658823 hardirqs last enabled at (17658822): [] kvm_wait arch/x86/kernel/kvm.c:799 [inline] hardirqs last enabled at (17658822): [] kvm_wait+0x14b/0x240 arch/x86/kernel/kvm.c:779 hardirqs last disabled at (17658823): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (17648188): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (17648188): [] batadv_nc_purge_paths+0x22d/0x310 net/batman-adv/network-coding.c:482 softirqs last disabled at (17648194): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (17648194): [] tipc_conn_kref_release net/tipc/topsrv.c:137 [inline] softirqs last disabled at (17648194): [] kref_put include/linux/kref.h:70 [inline] softirqs last disabled at (17648194): [] conn_put+0x7a/0x3a0 net/tipc/topsrv.c:155 CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: tipc_rcv tipc_conn_recv_work RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: 48 89 df e8 d4 59 7f f9 e9 2e ff ff ff 48 89 df e8 c7 59 7f f9 eb 82 90 90 90 90 90 e9 07 00 00 00 0f 00 2d b4 77 4e 00 fb f4 90 e9 07 00 00 00 0f 00 2d a4 77 4e 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffff8880b5a47bb8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e305c RBX: ffff88809e1bf5d0 RCX: 1ffff11016b46d57 RDX: dffffc0000000000 RSI: ffff8880b5a36a98 RDI: ffff8880b5a36a44 RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000282 R13: ffffed1013c37eba R14: 0000000000000001 R15: ffff8880ba02bd80 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd45b932000 CR3: 000000009d319000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] kvm_wait arch/x86/kernel/kvm.c:799 [inline] kvm_wait+0x179/0x240 arch/x86/kernel/kvm.c:779 pv_wait arch/x86/include/asm/paravirt.h:689 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:471 [inline] __pv_queued_spin_lock_slowpath+0x86a/0xae0 kernel/locking/qspinlock.c:474 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 spin_lock_bh include/linux/spinlock.h:334 [inline] tipc_conn_kref_release net/tipc/topsrv.c:137 [inline] kref_put include/linux/kref.h:70 [inline] conn_put+0x7a/0x3a0 net/tipc/topsrv.c:155 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 13696 Comm: kworker/u4:9 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:idr_find+0x0/0x50 lib/idr.c:176 Code: 84 c0 74 04 3c 03 7e 15 8b 45 48 48 89 ef 31 d2 48 29 c3 48 89 de 5b 5d e9 ad 10 01 00 e8 58 b6 aa f9 eb e4 66 0f 1f 44 00 00 <55> 48 89 fd 53 48 89 f3 e8 43 e2 74 f9 48 8d 7d 48 48 b8 00 00 00 RSP: 0018:ffff88808d137bd8 EFLAGS: 00000293 RAX: ffff88804580c580 RBX: 000000002a232343 RCX: ffffffff87bb115d RDX: 0000000000000000 RSI: 000000002a232343 RDI: ffff88809e1bf580 RBP: ffff88809e1bf580 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809e1bf5d0 R13: ffffed1013c37ec1 R14: ffff88808e02a1c0 R15: 000000000000011b FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000543038 CR3: 00000000aad3f000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tipc_topsrv_stop net/tipc/topsrv.c:698 [inline] tipc_topsrv_exit_net+0x25e/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 48 89 df mov %rbx,%rdi 3: e8 d4 59 7f f9 callq 0xf97f59dc 8: e9 2e ff ff ff jmpq 0xffffff3b d: 48 89 df mov %rbx,%rdi 10: e8 c7 59 7f f9 callq 0xf97f59dc 15: eb 82 jmp 0xffffff99 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: e9 07 00 00 00 jmpq 0x28 21: 0f 00 2d b4 77 4e 00 verw 0x4e77b4(%rip) # 0x4e77dc 28: fb sti 29: f4 hlt 2a: c3 retq <-- trapping instruction 2b: 90 nop 2c: e9 07 00 00 00 jmpq 0x38 31: 0f 00 2d a4 77 4e 00 verw 0x4e77a4(%rip) # 0x4e77dc 38: f4 hlt 39: c3 retq 3a: 90 nop 3b: 90 nop 3c: 41 56 push %r14 3e: 41 55 push %r13