root@ubuntu:~/linux-next# echo c > /proc/sysrq-trigger
[ 77.389596] sysrq: Trigger a crash
[ 77.390596] Kernel panic - not syncing: sysrq triggered crash
[ 77.392159] CPU: 1 UID: 0 PID: 853 Comm: bash Kdump: loaded Not tainted 6.17.0-rc5-next-202509083e8e5822146b #1 PREEMPT(voluntary)
[ 77.395295] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 02/02/2022
[ 77.397425] Call Trace:
[ 77.398154]
[ 77.398758] vpanic+0x307/0x360
[ 77.399648] panic+0x52/0x60
[ 77.400467] sysrq_handle_crash+0x11/0x20
[ 77.401574] __handle_sysrq+0xb6/0x170
[ 77.402633] write_sysrq_trigger+0x50/0x70
[ 77.403757] proc_reg_write+0x50/0x90
[ 77.404778] ? preempt_count_add+0x42/0xa0
[ 77.405915] vfs_write+0xf4/0x430
[ 77.406847] ? handle_mm_fault+0xd0/0x200
[ 77.407949] ksys_write+0x5c/0xd0
[ 77.408876] do_syscall_64+0x4c/0x1d0
[ 77.409888] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 77.411287] RIP: 0033:0x7f3109cae574
[ 77.412273] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d d5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89
[ 77.417195] RSP: 002b:00007ffcf236ac88 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 77.419221] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3109cae574
[ 77.421127] RDX: 0000000000000002 RSI: 000056482f32eb80 RDI: 0000000000000001
[ 77.423039] RBP: 00007ffcf236acb0 R08: 0000000000000073 R09: 0000000000000000
[ 77.424955] R10: 00000000ffffffff R11: 0000000000000202 R12: 0000000000000002
[ 77.426868] R13: 000056482f32eb80 R14: 00007f3109d965c0 R15: 00007f3109d93ee0
[ 77.428769]
[1908925052.473349] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[1908925052.596827] BUG: unable to handle page fault for address: ffffffffbc71a701
[1908925052.711951] #PF: supervisor instruction fetch in kernel mode
[1908925052.807398] #PF: error_code(0x0011) - permissions violation
[1908925052.901077] PGD 8000045445067 P4D 8000045445067 PUD 8000045446063 PMD 80000050a1063 PTE 8008000045d1a163
[1908925053.054434] Oops: Oops: 0011 [#1] SMP NOPTI
[1908925053.127721] CPU: 1 UID: 0 PID: 853 Comm: bash Kdump: loaded Not tainted 6.17.0-rc5-next-202509083e8e5822146b #1 PREEMPT(voluntary)
[1908925053.315239] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 02/02/2022
[1908925053.446226] RIP: 0010:early_set_pages_state+0x0/0x120
[1908925053.532500] Code: e1 af d8 12 b7 f1 69 9a ad a1 34 b5 46 8b 23 54 34 f4 68 40 b7 e3 ad 9c 5a 88 53 57 9f 90 85 aa 5a 0a 5a 75 d8 6e 61 46 99 0d <99> 4a d1 8a 6a 31 c7 37 2a 03 a9 da 74 a6 6c da 74 1b fc f5 37 34
[1908925053.824607] RSP: 0018:ffffbbd1807ffbe0 EFLAGS: 00010006
[1908925053.914235] RAX: ffff9a6ebfe53000 RBX: ffffffffbc9e5be8 RCX: ffffbbd1807ffbe8
[1908925054.031525] RDX: 0000000000000001 RSI: 000000007fe53000 RDI: ffff9a6e3fe53000
[1908925054.149645] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff9a6e3fe53000
[1908925054.266491] R10: 0000000046401000 R11: 0000000000000000 R12: ffff9a6e3fe53000
[1908925054.384139] R13: 0000000000000000 R14: ffff9a6e0640a298 R15: 0000000000001000
[1908925054.501393] FS: 00007f3109b8f740(0000) GS:ffff9a6e80b33000(0000) knlGS:0000000000000000
[1908925054.633618] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1908925054.729706] CR2: ffffffffbc71a701 CR3: 0008000003c0a000 CR4: 00000000003506f0
[1908925054.847454] Call Trace:
[1908925054.895167]
[1908925054.936802] set_pages_state.part.0+0x63/0xa0
[1908925055.012870] snp_kexec_finish+0x432/0x490
[1908925055.084759] native_machine_crash_shutdown+0x65/0x90
[1908925055.169382] __crash_kexec+0x56/0x120
[1908925055.234315] ? __crash_kexec+0x104/0x120
[1908925055.304749] ? vpanic+0x2a2/0x360
[1908925055.364929] ? panic+0x52/0x60
[1908925055.421238] ? sysrq_handle_crash+0x11/0x20
[1908925055.494684] ? __handle_sysrq+0xb6/0x170
[1908925055.564533] ? write_sysrq_trigger+0x50/0x70
[1908925055.638923] ? proc_reg_write+0x50/0x90
[1908925055.707040] ? preempt_count_add+0x42/0xa0
[1908925055.780508] ? vfs_write+0xf4/0x430
[1908925055.843202] ? handle_mm_fault+0xd0/0x200
[1908925055.913842] ? ksys_write+0x5c/0xd0
[1908925055.976945] ? do_syscall_64+0x4c/0x1d0
[1908925056.045624] ? entry_SYSCALL_64_after_hwframe+0x76/0x7e
[1908925056.134467]
[1908925056.177286] Modules linked in: efivarfs
[1908925056.246424] CR2: ffffffffbc71a701
[1908925056.306414] ---[ end trace 0000000000000000 ]---
[1908925056.385521] RIP: 0010:early_set_pages_state+0x0/0x120
[1908925056.471974] Code: e1 af d8 12 b7 f1 69 9a ad a1 34 b5 46 8b 23 54 34 f4 68 40 b7 e3 ad 9c 5a 88 53 57 9f 90 85 aa 5a 0a 5a 75 d8 6e 61 46 99 0d <99> 4a d1 8a 6a 31 c7 37 2a 03 a9 da 74 a6 6c da 74 1b fc f5 37 34
[1908925056.763069] RSP: 0018:ffffbbd1807ffbe0 EFLAGS: 00010006
[1908925056.851996] RAX: ffff9a6ebfe53000 RBX: ffffffffbc9e5be8 RCX: ffffbbd1807ffbe8
[1908925056.969759] RDX: 0000000000000001 RSI: 000000007fe53000 RDI: ffff9a6e3fe53000
[1908925057.086912] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff9a6e3fe53000
[1908925057.204472] R10: 0000000046401000 R11: 0000000000000000 R12: ffff9a6e3fe53000
[1908925057.321447] R13: 0000000000000000 R14: ffff9a6e0640a298 R15: 0000000000001000
[1908925057.438887] FS: 00007f3109b8f740(0000) GS:ffff9a6e80b33000(0000) knlGS:0000000000000000
[1908925057.570232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1908925057.666955] CR2: ffffffffbc71a701 CR3: 0008000003c0a000 CR4: 00000000003506f0
[1908925057.784042] Kernel panic - not syncing: Fatal exception
[1908925119.060839] Shutting down cpus with NMI
[1908925119.748145] Kernel Offset: 0x39200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[1908925119.921024] ---[ end Kernel panic - not syncing: Fatal exception ]---