Enabled bearer , priority 10 ------------[ cut here ]------------ Enabling of bearer rejected, already enabled kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.0.0-rc7+ #79 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events cache_reap RIP: 0010:__phys_addr+0xb3/0x120 arch/x86/mm/physaddr.c:27 Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 76 47 3d 00 48 85 db 75 0f e8 cc 45 3d 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 bd 45 3d 00 <0f> 0b e8 b6 45 3d 00 48 c7 c0 10 90 87 88 48 ba 00 00 00 00 00 fc RSP: 0018:ffff8880a98a7bd8 EFLAGS: 00010093 RAX: ffff8880a9898300 RBX: 0000000000000000 RCX: ffffffff81329b62 Enabling of bearer rejected, already enabled RDX: 0000000000000000 RSI: ffffffff81329bc3 RDI: 0000000000000006 RBP: ffff8880a98a7bf0 R08: ffff8880a9898300 R09: ffffed1015314f80 R10: ffffed1015314f7f R11: 0000000000000003 R12: 0000778000000000 R13: 0000000080000000 R14: ffff8880a09c9900 R15: ffff8880a09c9900 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000008350004 CR3: 00000000933d8000 CR4: 00000000001406f0 Call Trace: virt_to_head_page include/linux/mm.h:685 [inline] free_block+0xa8/0x250 mm/slab.c:3404 drain_array_locked+0x36/0x90 mm/slab.c:2197 drain_array+0x8c/0xb0 mm/slab.c:4011 cache_reap+0xf4/0x280 mm/slab.c:4052 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173 worker_thread+0x98/0xe40 kernel/workqueue.c:2319 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 9fa668e17701b2d8 ]--- RIP: 0010:__phys_addr+0xb3/0x120 arch/x86/mm/physaddr.c:27 Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 76 47 3d 00 48 85 db 75 0f e8 cc 45 3d 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 bd 45 3d 00 <0f> 0b e8 b6 45 3d 00 48 c7 c0 10 90 87 88 48 ba 00 00 00 00 00 fc RSP: 0018:ffff8880a98a7bd8 EFLAGS: 00010093 RAX: ffff8880a9898300 RBX: 0000000000000000 RCX: ffffffff81329b62 RDX: 0000000000000000 RSI: ffffffff81329bc3 RDI: 0000000000000006 RBP: ffff8880a98a7bf0 R08: ffff8880a9898300 R09: ffffed1015314f80 R10: ffffed1015314f7f R11: 0000000000000003 R12: 0000778000000000 R13: 0000000080000000 R14: ffff8880a09c9900 R15: ffff8880a09c9900 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000008350004 CR3: 00000000933d8000 CR4: 00000000001406f0