Created attachment 278727 [details] Screenshot - Kernel Panic Hi, I've been facing a segfault on the kernel for 4.15+ .. I've tried to transcribe the relevant kernel output from the screenshot here: [] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.9-gentoo #1 [] Hardware name: HP HP EliteBook 735 G5/83DA, BIOS Q81 Ver. 01.03.01 07/26/2018 [] RIP: 0010: amd_threshold_interrupt+0x69/0xd0 [] Code: 01 48 ff c5 39 e8 76 73 4b 8b 4c e5 00 ba 01 00 00 00 4c 89 f0 e2 51 f7 f7 d2 85 14 [] RSP: 0018:ffff91738f603e70 EFLAGS: 00010002 [] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff91738f600000 [] RDX: 0000000000000000 RSI: ffffffff94c01a4a RDI: ffff91738f603ec8 [] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [] R13: ffffffff952d1700 R14: 0000000000015db0 R15: 0000000000000000 [] FS: 0000000000000000(0000) GS:ffff91738f600000(0000) knIGS:0000000000000000 [] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [] CR2: 0000000000000000 CR3: 00000000114e0a000 CR4: 00000000003406f0 [] Call Trace: [] <IRQ> [] smp_threshold_interrupt+0x2b/0xd0 [] theshold_interrupt+0xf/0x20 [] RIP: 0010:__do_softirq+0x6f/0x2be [] Code: 12 22 6b 44 0f b7 e8 89 4c 24 24 c7 44 24 20 0a 00 00 00 45 89 ee c7 c0 80 [] RSP: 0018:ffff91738f603f78 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff06 [] RAX: 0000000000021280 RBX: ffff91738f615f00 RCX: 0000000000200140 [] RDX: ffff91738b864100 RSI: 0000000000000000 RDI: 0000000000000001 [] RBP: 0000000000000000 R08: 00000000eac0c6e6 R09: 0000000000000078 [] R10: 000000005ba66b8b R11: 0000000000000000 R12: 0000000000000000 [] R13: 0000000000000282 R14: 0000000000000282 R15: 0000000000000000 [] ? threshold_interrupt+0xa/0x20 [] irq_exit+0xb1/0xc0 [] smp_apic_timer_interrupt+0x74/0x130 [] apic_timer_interrupt+0xf/0x20 [] </IRQ> [] RIP: 0010:console_unlock+0x341/0x4d0 [] Code: ff e8 83 f9 ff ff 85 c0 0f 85 5b ff ff ff e8 36 f9 ff ff 85 c0 0f 85 07 fd ff [] RSP: 0018:ffffadc8c007bd70 EFLAGS: 00000247 ORIG_RAX: ffffffffffffff13 [] RAX: 0000000000000000 RBX: ffffffff959d1f28 RCX: 0000000000000000 [] RDX: 0000000000000000 RSI: ffffffff95089d80 RDI: 0000000000000247 [] RBP: ffffffff959d4b50 R08: 0000000000000780 R09: ffffadc8c3fd8200 [] R10: ffffadc8c3fcaff8 R11: 0000000000000000 R12: 000000000000002c [] R13: ffffffff95526ea0 R14: 0000000000000247 R15: 0000000000000000 [] vprintk_emite+0x1ef/0x250 [] printk+0x58/0x6f [] cpuidle_switch_governer.part.1+0x98/0xb0 [] cpuidle_register_governer+0xf3/0x110 [] ? init_ladder+0x24/0x24 [] do_one_initcall+0x46/0x1c0 [] ? do_early_param+0x8e/0x8e [] kernel_init_freeable+0x17e/0x20d [] ? rest_init+0xaa/0xaa [] kernel_init+0xa/0xfe [] ret_from_fork+0x22/0x40 [] Modules linked in: [] CR2: 0000000000000000 [] ---[ end trace 0ee0222c2bbc54fd ]--- [] RIP: 0010:amd_threshold_interrupt+0x69/0xd0 [] Code: 01 48 ff c5 39 e8 76 73 4b 8b 4c e5 00 ba 01 00 00 00 4c 89 f0 c4 e2 51 f7 d2 85 14 [] RSP: 0018:ffff91738f603e70 EFLAGS: 00010002 [] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff91738f600000 [] RDX: 0000000000000000 RSI: ffffffff94c01a4a RDI: ffff91738f603ec8 [] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [] R13: ffffffff952d1700 R14: 0000000000015db0 R15: 0000000000000000 [] FS: 0000000000000000(0000) GS:ffff91738f600000(0000) knIGS:0000000000000000 [] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [] CR2: 0000000000000000 CR3: 00000000114e0a000 CR4: 00000000003406f0 [] Kernel panic - not syncing: Fatal exception in interrupt [] ---[ end Kernel panic - not syncing: Fatal exception in interrupt]---
Created attachment 278731 [details] Picture of kernel panic Updated description, slightly better image quality
Can you update your BIOS and try the latest upstream kernel from git? If you don't know how, ask questions. Thx.
Sorry, this bug has since been resolved in newer kernels. Currently running a stable 4.20