On Wed, Mar 19, 2025 at 10:39:33PM +0100, Ingo Molnar wrote:
> Note that silent quirks are counterproductive, as they don't give VM
> vendors any incentives to fix their VM for such bugs.
>
> So I changed your quirk to be:
This fires on my Zen3 now :-P
[ 2.411315] x86/cpu: User Mode Instruction Prevention (UMIP) activated
[ 2.415307] ------------[ cut here ]------------
[ 2.419306] [Firmware Bug]: Invalid XFEATURE_PKRU configuration.
[ 2.423307] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/common.c:530 identify_cpu+0x82a/0x840
[ 2.427306] Modules linked in:
[ 2.431307] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.14.0-rc7+ #1 PREEMPT(full)
[ 2.435306] Hardware name: Micro-Star International Co., Ltd. MS-7A38/B450M PRO-VDH MAX (MS-7A38), BIOS B.G0 07/26/2022
[ 2.439306] RIP: 0010:identify_cpu+0x82a/0x840
[ 2.443306] Code: e8 bb f2 ff ff e9 4f ff ff ff 80 3d 07 4e 7b 01 00 0f 85 af fb ff ff 48 c7 c7 a8 fd f0 81 c6 05 f3 4d 7b 01 01 e8 e6 49 04 00 <0f> 0b e9 95 fb ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00
[ 2.447306] RSP: 0000:ffffffff82203ec8 EFLAGS: 00010296
[ 2.451306] RAX: 0000000000000034 RBX: 0000000000000000 RCX: 0000000000000000
[ 2.455306] RDX: 0000000080000003 RSI: 00000000ffffffea RDI: 0000000000000001
[ 2.459306] RBP: ffffffff82a09f40 R08: ffff88883e1fafe8 R09: 000000000027fffb
[ 2.463306] R10: 00000000000000ee R11: ffff88883d5fb000 R12: 0000000000000000
[ 2.467306] R13: ffff88883f373180 R14: ffffffff8220ba78 R15: 000000000008b000
[ 2.471306] FS: 0000000000000000(0000) GS:ffff88889742b000(0000) knlGS:0000000000000000
[ 2.475306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.479306] CR2: ffff88883f1ff000 CR3: 000000000221a000 CR4: 00000000003108b0
[ 2.483306] Call Trace:
[ 2.487307] <TASK>
[ 2.489459] ? __warn+0x85/0x150
[ 2.491306] ? identify_cpu+0x82a/0x840
[ 2.495306] ? report_bug+0x1c3/0x1d0
[ 2.499306] ? identify_cpu+0x82a/0x840
[ 2.503306] ? identify_cpu+0x82c/0x840
[ 2.507306] ? handle_bug+0xec/0x120
[ 2.511306] ? exc_invalid_op+0x14/0x70
[ 2.515306] ? asm_exc_invalid_op+0x16/0x20
[ 2.519306] ? identify_cpu+0x82a/0x840
[ 2.523306] ? identify_cpu+0x82a/0x840
[ 2.527306] arch_cpu_finalize_init+0x23/0x150
[ 2.531307] start_kernel+0x40a/0x720
[ 2.535306] x86_64_start_reservations+0x14/0x30
[ 2.539306] x86_64_start_kernel+0xa8/0xc0
[ 2.543306] common_startup_64+0x12c/0x138
[ 2.547307] </TASK>
[ 2.551306] ---[ end trace 0000000000000000 ]---
Zapping it for the time being.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
