https://bugzilla.kernel.org/show_bug.cgi?id=206235 Bug ID: 206235 Summary: kernel BUG at mm/slub.c:294 Product: Drivers Version: 2.5 Kernel Version: 4.19.94 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Bluetooth Assignee: linux-bluetooth@xxxxxxxxxxxxxxx Reporter: steffen@xxxxxxxxxx Regression: No during a "sudo rfkill block all" with a bluealsa device still paired (normally i unpair first, first time i did not i think) i got this oops: Jan 17 01:34:05 kent kernel: ------------[ cut here ]------------ Jan 17 01:34:05 kent kernel: kernel BUG at mm/slub.c:294! Jan 17 01:34:05 kent kernel: invalid opcode: 0000 [#1] PREEMPT SMP PTI Jan 17 01:34:05 kent kernel: CPU: 0 PID: 16328 Comm: rfkill Tainted: G C 4.19.94-kent #1 Jan 17 01:34:05 kent kernel: Hardware name: LENOVO 81EU/LNVNB161216, BIOS 7PCN35WW 09/25/2018 Jan 17 01:34:05 kent kernel: RIP: 0010:__slab_free.isra.20+0x1b8/0x290 Jan 17 01:34:05 kent kernel: Code: 75 6a 80 7c 24 4b 00 79 05 40 84 f6 74 1e 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 80 4c 24 4b 80 4d 89 ef e9 03 ff ff ff <0f> 0b 48 8d 65 d8 4c 89 e6 4c 89 f7 ba 01 00 00 00 5b 41 5c 41 5d Jan 17 01:34:05 kent kernel: RSP: 0018:ffffa6b840cebcc0 EFLAGS: 00010246 Jan 17 01:34:05 kent kernel: RAX: ffff95323b657a00 RBX: ffff95323b657a00 RCX: ffff95323b657a00 Jan 17 01:34:05 kent kernel: RDX: 0000000080200005 RSI: ffffdd2dc5ed9580 RDI: ffff953324d2b080 Jan 17 01:34:05 kent kernel: RBP: ffffa6b840cebd50 R08: 0000000000000001 R09: ffff95323b657a00 Jan 17 01:34:05 kent kernel: R10: 00001a05f5d98974 R11: 0000000000001400 R12: ffffdd2dc5ed9580 Jan 17 01:34:05 kent kernel: R13: ffff95323b657a00 R14: ffff953324d2b080 R15: 0000000000000000 Jan 17 01:34:05 kent kernel: FS: 00007f21f93c3740(0000) GS:ffff953326a00000(0000) knlGS:0000000000000000 Jan 17 01:34:05 kent kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 17 01:34:05 kent kernel: CR2: 00007ffb6241f9d8 CR3: 000000010dbee002 CR4: 00000000003606f0 Jan 17 01:34:05 kent kernel: Call Trace: Jan 17 01:34:05 kent kernel: ? finish_wait+0x2a/0x60 Jan 17 01:34:05 kent kernel: ? __hci_cmd_sync_ev+0x20a/0x230 Jan 17 01:34:05 kent kernel: kmem_cache_free+0x195/0x1c0 Jan 17 01:34:05 kent kernel: btrtl_shutdown_realtek+0x2b/0x50 Jan 17 01:34:05 kent kernel: hci_dev_do_close+0x402/0x4c0 Jan 17 01:34:05 kent kernel: hci_rfkill_set_block+0x37/0x50 Jan 17 01:34:05 kent kernel: rfkill_set_block+0x8f/0x140 Jan 17 01:34:05 kent kernel: rfkill_fop_write+0x12a/0x1d0 Jan 17 01:34:05 kent kernel: __vfs_write+0x31/0x180 Jan 17 01:34:05 kent kernel: vfs_write+0xa4/0x190 Jan 17 01:34:05 kent kernel: ksys_write+0x52/0xd0 Jan 17 01:34:05 kent kernel: do_syscall_64+0x5a/0x190 Jan 17 01:34:05 kent kernel: ? prepare_exit_to_usermode+0x66/0x90 Jan 17 01:34:05 kent kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Jan 17 01:34:05 kent kernel: RIP: 0033:0x7f21f94b0644 Jan 17 01:34:05 kent kernel: Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 00 00 00 00 48 8d 05 b9 50 0d 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 41 54 49 89 d4 55 48 89 f5 53 Jan 17 01:34:05 kent kernel: RSP: 002b:00007ffc78824028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 Jan 17 01:34:05 kent kernel: RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f21f94b0644 Jan 17 01:34:05 kent kernel: RDX: 0000000000000008 RSI: 00007ffc78824040 RDI: 0000000000000003 Jan 17 01:34:05 kent kernel: RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000 Jan 17 01:34:05 kent kernel: R10: fffffffffffff088 R11: 0000000000000246 R12: 0000000000000000 Jan 17 01:34:05 kent kernel: R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Jan 17 01:34:05 kent kernel: Modules linked in: r8822be(C) Jan 17 01:34:05 kent kernel: ---[ end trace 56293fc55f5cc3e0 ]--- Jan 17 01:34:05 kent kernel: RIP: 0010:__slab_free.isra.20+0x1b8/0x290 Jan 17 01:34:05 kent kernel: Code: 75 6a 80 7c 24 4b 00 79 05 40 84 f6 74 1e 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 80 4c 24 4b 80 4d 89 ef e9 03 ff ff ff <0f> 0b 48 8d 65 d8 4c 89 e6 4c 89 f7 ba 01 00 00 00 5b 41 5c 41 5d Jan 17 01:34:05 kent kernel: RSP: 0018:ffffa6b840cebcc0 EFLAGS: 00010246 Jan 17 01:34:05 kent kernel: RAX: ffff95323b657a00 RBX: ffff95323b657a00 RCX: ffff95323b657a00 Jan 17 01:34:05 kent kernel: RDX: 0000000080200005 RSI: ffffdd2dc5ed9580 RDI: ffff953324d2b080 Jan 17 01:34:05 kent kernel: RBP: ffffa6b840cebd50 R08: 0000000000000001 R09: ffff95323b657a00 Jan 17 01:34:05 kent kernel: R10: 00001a05f5d98974 R11: 0000000000001400 R12: ffffdd2dc5ed9580 Jan 17 01:34:05 kent kernel: R13: ffff95323b657a00 R14: ffff953324d2b080 R15: 0000000000000000 Jan 17 01:34:05 kent kernel: FS: 00007f21f93c3740(0000) GS:ffff953326a00000(0000) knlGS:0000000000000000 Jan 17 01:34:05 kent kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 17 01:34:05 kent kernel: CR2: 00007ffb6241f9d8 CR3: 000000010dbee002 CR4: 00000000003606f0 Linux kent 4.19.94-kent #1 SMP PREEMPT Sat Jan 11 22:44:47 CET 2020 x86_64 Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz GenuineIntel GNU/Linux -- You are receiving this mail because: You are the assignee for the bug.