Thanks for your replying, the `Probe URL` of my laptop:
https://linux-hardware.org/?probe=58facb533d , and `cpuinfo` is:
larry@zx2:~/Downloads$ sudo cat /proc/cpuinfo
processor : 0
vendor_id : CentaurHauls
cpu family : 7
model : 59
model name : ZHAOXIN KaiXian KX-6000G/4@3.0GHz
stepping : 2
cpu MHz : 3160.490
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl nonstop_tsc
cpuid aperfmperf pni pclmulqdq monitor vmx smx est tm2 ssse3 cx16 xtpr
pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand rng rng_en ace ace_en ace2 phe phe_en pmm pmm_en lahf_lm abm
3dnowprefetch ibrs ibpb tpr_shadow ept vpid fsgsbase tsc_adjust bmi1
smep bmi2 invpcid rdseed adx smap sha_ni xsaveopt dtherm hwp
hwp_act_window hwp_epp hwp_pkg_req vnmi umip pku ospke rdpid
arch_capabilities
vmx flags : vnmi invvpid ept_x_only ept_1gb tsc_offset vtpr mtf ept
vpid unrestricted_guest ple
bugs : spectre_v1
bogomips : 6586.97
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : CentaurHauls
cpu family : 7
model : 59
model name : ZHAOXIN KaiXian KX-6000G/4@3.0GHz
stepping : 2
cpu MHz : 3202.559
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl nonstop_tsc
cpuid aperfmperf pni pclmulqdq monitor vmx smx est tm2 ssse3 cx16 xtpr
pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand rng rng_en ace ace_en ace2 phe phe_en pmm pmm_en lahf_lm abm
3dnowprefetch ibrs ibpb tpr_shadow ept vpid fsgsbase tsc_adjust bmi1
smep bmi2 invpcid rdseed adx smap sha_ni xsaveopt dtherm hwp
hwp_act_window hwp_epp hwp_pkg_req vnmi umip pku ospke rdpid
arch_capabilities
vmx flags : vnmi invvpid ept_x_only ept_1gb tsc_offset vtpr mtf ept
vpid unrestricted_guest ple
bugs : spectre_v1
bogomips : 6586.97
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : CentaurHauls
cpu family : 7
model : 59
model name : ZHAOXIN KaiXian KX-6000G/4@3.0GHz
stepping : 2
cpu MHz : 3206.178
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl nonstop_tsc
cpuid aperfmperf pni pclmulqdq monitor vmx smx est tm2 ssse3 cx16 xtpr
pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand rng rng_en ace ace_en ace2 phe phe_en pmm pmm_en lahf_lm abm
3dnowprefetch ibrs ibpb tpr_shadow ept vpid fsgsbase tsc_adjust bmi1
smep bmi2 invpcid rdseed adx smap sha_ni xsaveopt dtherm hwp
hwp_act_window hwp_epp hwp_pkg_req vnmi umip pku ospke rdpid
arch_capabilities
vmx flags : vnmi invvpid ept_x_only ept_1gb tsc_offset vtpr mtf ept
vpid unrestricted_guest ple
bugs : spectre_v1
bogomips : 6586.97
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : CentaurHauls
cpu family : 7
model : 59
model name : ZHAOXIN KaiXian KX-6000G/4@3.0GHz
stepping : 2
cpu MHz : 3195.306
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl nonstop_tsc
cpuid aperfmperf pni pclmulqdq monitor vmx smx est tm2 ssse3 cx16 xtpr
pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand rng rng_en ace ace_en ace2 phe phe_en pmm pmm_en lahf_lm abm
3dnowprefetch ibrs ibpb tpr_shadow ept vpid fsgsbase tsc_adjust bmi1
smep bmi2 invpcid rdseed adx smap sha_ni xsaveopt dtherm hwp
hwp_act_window hwp_epp hwp_pkg_req vnmi umip pku ospke rdpid
arch_capabilities
vmx flags : vnmi invvpid ept_x_only ept_1gb tsc_offset vtpr mtf ept
vpid unrestricted_guest ple
bugs : spectre_v1
bogomips : 6586.97
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
Regards,
larryw3i.
On 4/24/25 08:51, Ben Hutchings wrote:
Control: tag -1 moreinfo
On Thu, 17 Apr 2025 11:57:47 +0800 root <larry...@yeah.net> wrote:
Package: linux-image-amd64
Version: 6.12.22-1
Severity: important
Dear Maintainer,
After linux-image-6.11.9-amd64, my laptop has never booted from linux-image-
amd64 any more. It shows "Kernel panic" after Grub. I took a screenshot for
that. I do hope you maintainers can SAVE my laptop.
The Kernel panic print as follow:
--------------------------------------------------------------------------------
0.93186510ops: general protection fault, naybe for address 0x0: 0000 [#1]
PREEMPT SMP NOPTI
0.9318931 CPU: 1 UID:0 PID:1 Comn: init Not tainted 6.12.22-and64 #1 Debian
6.12.22-1
0.9319151 Harduare nane: GITSIAR GDC-1461/GM-1461,BIOS 03.04 08/03/2023
0.9319321 RIP: 0010:copy_fpstate_to_sigframe+0x1eb/0x3c0
0.9319521 Code: b9 01 00 00 00 of 01 d0 48 c1 e2 20 89 c0 48 01 c2 48 81 ca ff
02 00 00 49 21 d5 e9 f4 fe ff ff 0f 1f 44 00 00 b9 01 00 0 0 <0f> 01 d0 48 c1
e2 20 89 c0 48 8d 8d 00 02 00 00 48 01 d0 4c 21 e8
We got a #GP exception on an XGETBV instruction, which means "ECX
specifies a reserved or unimplemented XCR address". So this instruction
is wrongly being used on a CPU that doesn't support it.
To help confirm this, please can you send the contents of /proc/cpuinfo?
0.9319911 RSP:0018:ffffa6844002bc28EFLAGS:00010246
0.9320061RAX: 0 RBX: 00000000 RcX: 00000001
[...]
ECX is 1 (= XCR_XFEATURE_IN_USE_MASK). So this is a use of
xfeatures_in_use() inlined into copy_fpstate_to_sigframe().
Since this is a regression after 6.11.9, my guess is that this is caused
by:
commit dd9478d54c738e86692b83cc992dc4fb643bcdbf
Author: Aruna Ramakrishna <aruna.ramakris...@oracle.com>
Date: Tue Nov 19 17:45:20 2024 +0000
x86/pkeys: Ensure updated PKRU value is XRSTOR'd
[ Upstream commit ae6012d72fa60c9ff92de5bac7a8021a47458e5b ]
which went into 6.12.5 and adds a call to xfeatures_in_use() without an
obvious CPU feature check. (The added call is not directly in
copy_fpstate_to_sigframe() but it's in a function that can be inlined
into it.)
Ben.
