Additional info: reporter: libreport-2.11.3 WARNING: CPU: 2 PID: 1 at kernel/trace/ftrace.c:987 ftrace_init_tracefs_toplevel+0x12d/0x17e Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.4.0-0.rc8.git0.2.fc32.x86_64 #1 Hardware name: Hewlett-Packard HP EliteBook 820 G2/225A, BIOS M71 Ver. 01.30 10/02/2019 RIP: 0010:ftrace_init_tracefs_toplevel+0x12d/0x17e Code: b9 0e 00 00 00 48 8d 78 20 f3 a5 4c 89 70 20 48 8d 78 20 e8 cd c2 34 fe 85 c0 74 84 89 ee 48 c7 c7 c0 77 34 b1 e8 29 a2 25 fe <0f> 0b 5b 4c 89 f7 5d 41 5c 41 5d 41 5e e9 99 47 44 fe 31 c9 49 c7 RSP: 0000:ffffb54180033df0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff97ffbfa00000 RCX: 000000000000028e RDX: 0000000000000001 RSI: 0000000000000082 RDI: 0000000000000246 RBP: 0000000000000000 R08: 0000000000000001 R09: 000000000000028e R10: 000000000000c614 R11: 0000000000000003 R12: 0000000000000000 R13: 000000000001c980 R14: ffff97ffbcde8a50 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff97ffbfa80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000024f60a001 CR4: 00000000003606e0 Call Trace: tracer_init_tracefs+0x8c/0x1e7 ? register_tracer+0x1bc/0x1bc do_one_initcall+0x46/0x1f4 kernel_init_freeable+0x1a1/0x248 ? rest_init+0xaa/0xaa kernel_init+0xa/0x106 ret_from_fork+0x35/0x40
Created attachment 1639970 [details] File: dmesg
Looks like this: https://lkml.org/lkml/2019/12/2/659 I'm hitting it also on multiple computers of different makes/models, and it taints the kernel on those systems with Secure Boot enabled.