* [BUG?] unchecked MSR access error: WRMSR to 0x19c
@ 2023-04-05 22:14 Rui Salvaterra
2023-04-06 21:36 ` Borislav Petkov
0 siblings, 1 reply; 4+ messages in thread
From: Rui Salvaterra @ 2023-04-05 22:14 UTC (permalink / raw)
To: x86, linux-kernel
Hi, everyone,
I have a Haswell (Core i7-4770R) machine running Linux 6.3-rc5 on
which, after a while under load (say, compiling the kernel), I get
this trace…
[ 832.549630] unchecked MSR access error: WRMSR to 0x19c (tried to
write 0x000000000000aaa8) at rIP: 0xffffffff816f66a6
(throttle_active_work+0xa6/0x1d0)
[ 832.549652] Call Trace:
[ 832.549654] <TASK>
[ 832.549655] process_one_work+0x1ab/0x300
[ 832.549661] worker_thread+0x4b/0x340
[ 832.549664] ? process_one_work+0x300/0x300
[ 832.549676] kthread+0xac/0xc0
[ 832.549679] ? kthread_exit+0x20/0x20
[ 832.549682] ret_from_fork+0x1f/0x30
[ 832.549693] </TASK>
… after which I get these from time to time in dmesg.
[ 836.709562] CPU7: Core temperature is above threshold, cpu clock is
throttled (total events = 219)
[ 836.709569] CPU3: Core temperature is above threshold, cpu clock is
throttled (total events = 219)
[ 1272.792138] CPU2: Core temperature is above threshold, cpu clock is
throttled (total events = 1)
[ 1272.792156] CPU6: Core temperature is above threshold, cpu clock is
throttled (total events = 1)
This is the microcode revision on the CPU.
[ 0.000000] microcode: updated early: 0xe -> 0x1c, date = 2019-11-12
Note that I have the exact same issue on an Ivy Bridge (Core
i7-3720QM) machine, but not on an Ivy Bridge laptop (Celeron 1007U).
Maybe this is a legitimate warning, but please note that I've
thorughly cleaned the machines before retesting to see if, by
coincidence, I had any airway/cooling issues. The fact that it started
happening recently (since Linux 6.1, I believe), and the fact that
running stress-ng --cpu 16 before the unchecked WRMSR error happens
doesn't cause any thermal throttling events, lead me to believe this
is possibly some unintended oversight.
Please let me know if you need any additional information (.config, or
anything else).
Thanks in advance,
Rui
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [BUG?] unchecked MSR access error: WRMSR to 0x19c
2023-04-05 22:14 [BUG?] unchecked MSR access error: WRMSR to 0x19c Rui Salvaterra
@ 2023-04-06 21:36 ` Borislav Petkov
2023-04-06 22:31 ` srinivas pandruvada
0 siblings, 1 reply; 4+ messages in thread
From: Borislav Petkov @ 2023-04-06 21:36 UTC (permalink / raw)
To: Rui Salvaterra
Cc: x86, linux-kernel, Rafael J. Wysocki, Daniel Lezcano,
Amit Kucheria, Zhang Rui, Srinivas Pandruvada, linux-pm
CCing more appropiate people and quoting the whole mail...
On Wed, Apr 05, 2023 at 11:14:45PM +0100, Rui Salvaterra wrote:
> Hi, everyone,
>
> I have a Haswell (Core i7-4770R) machine running Linux 6.3-rc5 on
> which, after a while under load (say, compiling the kernel), I get
> this trace…
>
> [ 832.549630] unchecked MSR access error: WRMSR to 0x19c (tried to
> write 0x000000000000aaa8) at rIP: 0xffffffff816f66a6
> (throttle_active_work+0xa6/0x1d0)
> [ 832.549652] Call Trace:
> [ 832.549654] <TASK>
> [ 832.549655] process_one_work+0x1ab/0x300
> [ 832.549661] worker_thread+0x4b/0x340
> [ 832.549664] ? process_one_work+0x300/0x300
> [ 832.549676] kthread+0xac/0xc0
> [ 832.549679] ? kthread_exit+0x20/0x20
> [ 832.549682] ret_from_fork+0x1f/0x30
> [ 832.549693] </TASK>
>
> … after which I get these from time to time in dmesg.
>
> [ 836.709562] CPU7: Core temperature is above threshold, cpu clock is
> throttled (total events = 219)
> [ 836.709569] CPU3: Core temperature is above threshold, cpu clock is
> throttled (total events = 219)
> [ 1272.792138] CPU2: Core temperature is above threshold, cpu clock is
> throttled (total events = 1)
> [ 1272.792156] CPU6: Core temperature is above threshold, cpu clock is
> throttled (total events = 1)
>
> This is the microcode revision on the CPU.
>
> [ 0.000000] microcode: updated early: 0xe -> 0x1c, date = 2019-11-12
>
> Note that I have the exact same issue on an Ivy Bridge (Core
> i7-3720QM) machine, but not on an Ivy Bridge laptop (Celeron 1007U).
> Maybe this is a legitimate warning, but please note that I've
> thorughly cleaned the machines before retesting to see if, by
> coincidence, I had any airway/cooling issues. The fact that it started
> happening recently (since Linux 6.1, I believe), and the fact that
> running stress-ng --cpu 16 before the unchecked WRMSR error happens
> doesn't cause any thermal throttling events, lead me to believe this
> is possibly some unintended oversight.
>
> Please let me know if you need any additional information (.config, or
> anything else).
>
> Thanks in advance,
> Rui
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [BUG?] unchecked MSR access error: WRMSR to 0x19c
2023-04-06 21:36 ` Borislav Petkov
@ 2023-04-06 22:31 ` srinivas pandruvada
2023-04-07 18:57 ` Rui Salvaterra
0 siblings, 1 reply; 4+ messages in thread
From: srinivas pandruvada @ 2023-04-06 22:31 UTC (permalink / raw)
To: Borislav Petkov, Rui Salvaterra
Cc: x86, linux-kernel, Rafael J. Wysocki, Daniel Lezcano,
Amit Kucheria, Zhang Rui, linux-pm
Hi Rui,
On Thu, 2023-04-06 at 23:36 +0200, Borislav Petkov wrote:
> CCing more appropiate people and quoting the whole mail...
>
> On Wed, Apr 05, 2023 at 11:14:45PM +0100, Rui Salvaterra wrote:
> > Hi, everyone,
> >
> > I have a Haswell (Core i7-4770R) machine running Linux 6.3-rc5 on
> > which, after a while under load (say, compiling the kernel), I get
> > this trace…
> >
> > [ 832.549630] unchecked MSR access error: WRMSR to 0x19c (tried to
> > write 0x000000000000aaa8) at rIP: 0xffffffff816f66a6
Please send output of : cpuid -1
Also please try this:
#wrmsr 0x19c 0xaaa8
This should give "wrmsr: CPU 0 cannot set MSR 0x0000019c to
0x000000000000aaa8
#wrmsr 0x19c 0x0aa8
I think this will not return error.
Thanks,
Srinivas
> > (throttle_active_work+0xa6/0x1d0)
> > [ 832.549652] Call Trace:
> > [ 832.549654] <TASK>
> > [ 832.549655] process_one_work+0x1ab/0x300
> > [ 832.549661] worker_thread+0x4b/0x340
> > [ 832.549664] ? process_one_work+0x300/0x300
> > [ 832.549676] kthread+0xac/0xc0
> > [ 832.549679] ? kthread_exit+0x20/0x20
> > [ 832.549682] ret_from_fork+0x1f/0x30
> > [ 832.549693] </TASK>
> >
> > … after which I get these from time to time in dmesg.
> >
> > [ 836.709562] CPU7: Core temperature is above threshold, cpu clock
> > is
> > throttled (total events = 219)
> > [ 836.709569] CPU3: Core temperature is above threshold, cpu clock
> > is
> > throttled (total events = 219)
> > [ 1272.792138] CPU2: Core temperature is above threshold, cpu clock
> > is
> > throttled (total events = 1)
> > [ 1272.792156] CPU6: Core temperature is above threshold, cpu clock
> > is
> > throttled (total events = 1)
> >
> > This is the microcode revision on the CPU.
> >
> > [ 0.000000] microcode: updated early: 0xe -> 0x1c, date = 2019-
> > 11-12
> >
> > Note that I have the exact same issue on an Ivy Bridge (Core
> > i7-3720QM) machine, but not on an Ivy Bridge laptop (Celeron
> > 1007U).
> > Maybe this is a legitimate warning, but please note that I've
> > thorughly cleaned the machines before retesting to see if, by
> > coincidence, I had any airway/cooling issues. The fact that it
> > started
> > happening recently (since Linux 6.1, I believe), and the fact that
> > running stress-ng --cpu 16 before the unchecked WRMSR error happens
> > doesn't cause any thermal throttling events, lead me to believe
> > this
> > is possibly some unintended oversight.
> >
> > Please let me know if you need any additional information (.config,
> > or
> > anything else).
> >
> > Thanks in advance,
> > Rui
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [BUG?] unchecked MSR access error: WRMSR to 0x19c
2023-04-06 22:31 ` srinivas pandruvada
@ 2023-04-07 18:57 ` Rui Salvaterra
0 siblings, 0 replies; 4+ messages in thread
From: Rui Salvaterra @ 2023-04-07 18:57 UTC (permalink / raw)
To: srinivas pandruvada
Cc: Borislav Petkov, x86, linux-kernel, Rafael J. Wysocki,
Daniel Lezcano, Amit Kucheria, Zhang Rui, linux-pm
[-- Attachment #1: Type: text/plain, Size: 523 bytes --]
Hi, Srinivas,
On Thu, 6 Apr 2023 at 23:31, srinivas pandruvada
<srinivas.pandruvada@linux.intel.com> wrote:
>
> Please send output of : cpuid -1
Attached.
> Also please try this:
>
> #wrmsr 0x19c 0xaaa8
> This should give "wrmsr: CPU 0 cannot set MSR 0x0000019c to 0x000000000000aaa8
Indeed, it does:
wrmsr: CPU 0 cannot set MSR 0x0000019c to 0x000000000000aaa8
> #wrmsr 0x19c 0x0aa8
>
> I think this will not return error.
Correct, no error writing 0x0aa8.
I'll soon test the patch you sent me.
Kind regards,
Rui
[-- Attachment #2: cpuid.txt --]
[-- Type: text/plain, Size: 27032 bytes --]
CPU:
vendor_id = "GenuineIntel"
version information (1/eax):
processor type = primary processor (0)
family = 0x6 (6)
model = 0x6 (6)
stepping id = 0x1 (1)
extended family = 0x0 (0)
extended model = 0x4 (4)
(family synth) = 0x6 (6)
(model synth) = 0x46 (70)
(simple synth) = Intel Core (unknown type) (Crystal Well C1) {Haswell}, 22nm
miscellaneous (1/ebx):
process local APIC physical ID = 0x7 (7)
maximum IDs for CPUs in pkg = 0x10 (16)
CLFLUSH line size = 0x8 (8)
brand index = 0x0 (0)
brand id = 0x00 (0): unknown
feature information (1/edx):
x87 FPU on chip = true
VME: virtual-8086 mode enhancement = true
DE: debugging extensions = true
PSE: page size extensions = true
TSC: time stamp counter = true
RDMSR and WRMSR support = true
PAE: physical address extensions = true
MCE: machine check exception = true
CMPXCHG8B inst. = true
APIC on chip = true
SYSENTER and SYSEXIT = true
MTRR: memory type range registers = true
PTE global bit = true
MCA: machine check architecture = true
CMOV: conditional move/compare instr = true
PAT: page attribute table = true
PSE-36: page size extension = true
PSN: processor serial number = false
CLFLUSH instruction = true
DS: debug store = true
ACPI: thermal monitor and clock ctrl = true
MMX Technology = true
FXSAVE/FXRSTOR = true
SSE extensions = true
SSE2 extensions = true
SS: self snoop = true
hyper-threading / multi-core supported = true
TM: therm. monitor = true
IA64 = false
PBE: pending break event = true
feature information (1/ecx):
PNI/SSE3: Prescott New Instructions = true
PCLMULDQ instruction = true
DTES64: 64-bit debug store = true
MONITOR/MWAIT = true
CPL-qualified debug store = true
VMX: virtual machine extensions = true
SMX: safer mode extensions = false
Enhanced Intel SpeedStep Technology = true
TM2: thermal monitor 2 = true
SSSE3 extensions = true
context ID: adaptive or shared L1 data = false
SDBG: IA32_DEBUG_INTERFACE = true
FMA instruction = true
CMPXCHG16B instruction = true
xTPR disable = true
PDCM: perfmon and debug = true
PCID: process context identifiers = true
DCA: direct cache access = false
SSE4.1 extensions = true
SSE4.2 extensions = true
x2APIC: extended xAPIC support = true
MOVBE instruction = true
POPCNT instruction = true
time stamp counter deadline = true
AES instruction = true
XSAVE/XSTOR states = true
OS-enabled XSAVE/XSTOR = true
AVX: advanced vector extensions = true
F16C half-precision convert instruction = true
RDRAND instruction = true
hypervisor guest status = false
cache and TLB information (2):
0x63: data TLB: 2M/4M pages, 4-way, 32 entries
data TLB: 1G pages, 4-way, 4 entries
0x03: data TLB: 4K pages, 4-way, 64 entries
0x76: instruction TLB: 2M/4M pages, fully, 8 entries
0xff: cache data is in CPUID leaf 4
0xb5: instruction TLB: 4K, 8-way, 64 entries
0xf0: 64 byte prefetching
0xc1: L2 TLB: 4K/2M pages, 8-way, 1024 entries
processor serial number = 0004-0661-0000-0000-0000-0000
deterministic cache parameters (4):
--- cache 0 ---
cache type = data cache (1)
cache level = 0x1 (1)
self-initializing cache level = true
fully associative cache = false
maximum IDs for CPUs sharing cache = 0x1 (1)
maximum IDs for cores in pkg = 0x7 (7)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0x8 (8)
number of sets = 0x40 (64)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 64
(size synth) = 32768 (32 KB)
--- cache 1 ---
cache type = instruction cache (2)
cache level = 0x1 (1)
self-initializing cache level = true
fully associative cache = false
maximum IDs for CPUs sharing cache = 0x1 (1)
maximum IDs for cores in pkg = 0x7 (7)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0x8 (8)
number of sets = 0x40 (64)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 64
(size synth) = 32768 (32 KB)
--- cache 2 ---
cache type = unified cache (3)
cache level = 0x2 (2)
self-initializing cache level = true
fully associative cache = false
maximum IDs for CPUs sharing cache = 0x1 (1)
maximum IDs for cores in pkg = 0x7 (7)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0x8 (8)
number of sets = 0x200 (512)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 512
(size synth) = 262144 (256 KB)
--- cache 3 ---
cache type = unified cache (3)
cache level = 0x3 (3)
self-initializing cache level = true
fully associative cache = false
maximum IDs for CPUs sharing cache = 0xf (15)
maximum IDs for cores in pkg = 0x7 (7)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0xc (12)
number of sets = 0x2000 (8192)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = true
complex cache indexing = true
number of sets (s) = 8192
(size synth) = 6291456 (6 MB)
--- cache 4 ---
cache type = unified cache (3)
cache level = 0x4 (4)
self-initializing cache level = true
fully associative cache = false
maximum IDs for CPUs sharing cache = 0xf (15)
maximum IDs for cores in pkg = 0x7 (7)
system coherency line size = 0x40 (64)
physical line partitions = 0x10 (16)
ways of associativity = 0x10 (16)
number of sets = 0x2000 (8192)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = true
number of sets (s) = 8192
(size synth) = 134217728 (128 MB)
--- cache 5 ---
cache type = no more caches (0)
MONITOR/MWAIT (5):
smallest monitor-line size (bytes) = 0x40 (64)
largest monitor-line size (bytes) = 0x40 (64)
enum of Monitor-MWAIT exts supported = true
supports intrs as break-event for MWAIT = true
number of C0 sub C-states using MWAIT = 0x0 (0)
number of C1 sub C-states using MWAIT = 0x2 (2)
number of C2 sub C-states using MWAIT = 0x1 (1)
number of C3 sub C-states using MWAIT = 0x2 (2)
number of C4 sub C-states using MWAIT = 0x0 (0)
number of C5 sub C-states using MWAIT = 0x0 (0)
number of C6 sub C-states using MWAIT = 0x0 (0)
number of C7 sub C-states using MWAIT = 0x0 (0)
Thermal and Power Management Features (6):
digital thermometer = true
Intel Turbo Boost Technology = true
ARAT always running APIC timer = true
PLN power limit notification = true
ECMD extended clock modulation duty = true
PTM package thermal management = true
HWP base registers = false
HWP notification = false
HWP activity window = false
HWP energy performance preference = false
HWP package level request = false
HDC base registers = false
Intel Turbo Boost Max Technology 3.0 = false
HWP capabilities = false
HWP PECI override = false
flexible HWP = false
IA32_HWP_REQUEST MSR fast access mode = false
HW_FEEDBACK MSRs supported = false
ignoring idle logical processor HWP req = false
Thread Director = false
IA32_HW_FEEDBACK_THREAD_CONFIG bit 25 = false
digital thermometer thresholds = 0x2 (2)
hardware coordination feedback = true
ACNT2 available = false
performance-energy bias capability = true
number of enh hardware feedback classes = 0x0 (0)
performance capability reporting = false
energy efficiency capability reporting = false
size of feedback struct (4KB pages) = 0x1 (1)
index of CPU's row in feedback struct = 0x0 (0)
extended feature flags (7):
FSGSBASE instructions = true
IA32_TSC_ADJUST MSR supported = true
SGX: Software Guard Extensions supported = false
BMI1 instructions = true
HLE hardware lock elision = false
AVX2: advanced vector extensions 2 = true
FDP_EXCPTN_ONLY = false
SMEP supervisor mode exec protection = true
BMI2 instructions = true
enhanced REP MOVSB/STOSB = true
INVPCID instruction = true
RTM: restricted transactional memory = false
RDT-CMT/PQoS cache monitoring = false
deprecated FPU CS/DS = true
MPX: intel memory protection extensions = false
RDT-CAT/PQE cache allocation = false
AVX512F: AVX-512 foundation instructions = false
AVX512DQ: double & quadword instructions = false
RDSEED instruction = false
ADX instructions = false
SMAP: supervisor mode access prevention = false
AVX512IFMA: integer fused multiply add = false
PCOMMIT instruction = false
CLFLUSHOPT instruction = false
CLWB instruction = false
Intel processor trace = false
AVX512PF: prefetch instructions = false
AVX512ER: exponent & reciprocal instrs = false
AVX512CD: conflict detection instrs = false
SHA instructions = false
AVX512BW: byte & word instructions = false
AVX512VL: vector length = false
PREFETCHWT1 = false
AVX512VBMI: vector byte manipulation = false
UMIP: user-mode instruction prevention = false
PKU protection keys for user-mode = false
OSPKE CR4.PKE and RDPKRU/WRPKRU = false
WAITPKG instructions = false
AVX512_VBMI2: byte VPCOMPRESS, VPEXPAND = false
CET_SS: CET shadow stack = false
GFNI: Galois Field New Instructions = false
VAES instructions = false
VPCLMULQDQ instruction = false
AVX512_VNNI: neural network instructions = false
AVX512_BITALG: bit count/shiffle = false
TME: Total Memory Encryption = false
AVX512: VPOPCNTDQ instruction = false
LA57: 57-bit addrs & 5-level paging = false
BNDLDX/BNDSTX MAWAU value in 64-bit mode = 0x0 (0)
RDPID: read processor ID supported = false
KL: key locker = false
bus lock detection = false
CLDEMOTE supports cache line demote = false
MOVDIRI instruction = false
MOVDIR64B instruction = false
ENQCMD instruction = false
SGX_LC: SGX launch config supported = false
PKS: supervisor protection keys = false
SGX-KEYS: SGX attestation services = false
AVX512_4VNNIW: neural network instrs = false
AVX512_4FMAPS: multiply acc single prec = false
fast short REP MOV = false
UINTR: user interrupts = false
AVX512_VP2INTERSECT: intersect mask regs = false
IA32_MCU_OPT_CTRL SRBDS mitigation MSR = true
VERW MD_CLEAR microcode support = true
RTM transaction always aborts = false
IA32_TSX_FORCE_ABORT MSR = false
SERIALIZE instruction = false
hybrid part = false
TSXLDTRK: TSX suspend load addr tracking = false
PCONFIG instruction = false
LBR: architectural last branch records = false
CET_IBT: CET indirect branch tracking = false
AMX-BF16: tile bfloat16 support = false
AVX512_FP16: fp16 support = false
AMX-TILE: tile architecture support = false
AMX-INT8: tile 8-bit integer support = false
IBRS/IBPB: indirect branch restrictions = true
STIBP: 1 thr indirect branch predictor = true
L1D_FLUSH: IA32_FLUSH_CMD MSR = true
IA32_ARCH_CAPABILITIES MSR = false
IA32_CORE_CAPABILITIES MSR = false
SSBD: speculative store bypass disable = true
Direct Cache Access Parameters (9):
PLATFORM_DCA_CAP MSR bits = 0
Architecture Performance Monitoring Features (0xa):
version ID = 0x3 (3)
number of counters per logical processor = 0x4 (4)
bit width of counter = 0x30 (48)
length of EBX bit vector = 0x7 (7)
core cycle event = available
instruction retired event = available
reference cycles event = available
last-level cache ref event = available
last-level cache miss event = available
branch inst retired event = available
branch mispred retired event = available
top-down slots event = not available
fixed counter 0 supported = false
fixed counter 1 supported = false
fixed counter 2 supported = false
fixed counter 3 supported = false
fixed counter 4 supported = false
fixed counter 5 supported = false
fixed counter 6 supported = false
fixed counter 7 supported = false
fixed counter 8 supported = false
fixed counter 9 supported = false
fixed counter 10 supported = false
fixed counter 11 supported = false
fixed counter 12 supported = false
fixed counter 13 supported = false
fixed counter 14 supported = false
fixed counter 15 supported = false
fixed counter 16 supported = false
fixed counter 17 supported = false
fixed counter 18 supported = false
fixed counter 19 supported = false
fixed counter 20 supported = false
fixed counter 21 supported = false
fixed counter 22 supported = false
fixed counter 23 supported = false
fixed counter 24 supported = false
fixed counter 25 supported = false
fixed counter 26 supported = false
fixed counter 27 supported = false
fixed counter 28 supported = false
fixed counter 29 supported = false
fixed counter 30 supported = false
fixed counter 31 supported = false
number of contiguous fixed counters = 0x3 (3)
bit width of fixed counters = 0x30 (48)
anythread deprecation = false
x2APIC features / processor topology (0xb):
extended APIC ID = 7
--- level 0 ---
level number = 0x0 (0)
level type = thread (1)
bit width of level = 0x1 (1)
number of logical processors at level = 0x2 (2)
--- level 1 ---
level number = 0x1 (1)
level type = core (2)
bit width of level = 0x4 (4)
number of logical processors at level = 0x8 (8)
--- level 2 ---
level number = 0x2 (2)
level type = invalid (0)
bit width of level = 0x0 (0)
number of logical processors at level = 0x0 (0)
XSAVE features (0xd/0):
XCR0 valid bit field mask = 0x0000000000000007
x87 state = true
SSE state = true
AVX state = true
MPX BNDREGS = false
MPX BNDCSR = false
AVX-512 opmask = false
AVX-512 ZMM_Hi256 = false
AVX-512 Hi16_ZMM = false
PKRU state = false
XTILECFG state = false
XTILEDATA state = false
bytes required by fields in XCR0 = 0x00000340 (832)
bytes required by XSAVE/XRSTOR area = 0x00000340 (832)
XSAVEOPT instruction = true
XSAVEC instruction = false
XGETBV instruction = false
XSAVES/XRSTORS instructions = false
XFD: extended feature disable supported = false
SAVE area size in bytes = 0x00000000 (0)
IA32_XSS valid bit field mask = 0x0000000000000000
PT state = false
PASID state = false
CET_U user state = false
CET_S supervisor state = false
HDC state = false
UINTR state = false
LBR state = false
HWP state = false
AVX/YMM features (0xd/2):
AVX/YMM save state byte size = 0x00000100 (256)
AVX/YMM save state byte offset = 0x00000240 (576)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
XFD faulting supported = false
extended feature flags (0x80000001/edx):
SYSCALL and SYSRET instructions = true
execution disable = true
1-GB large page support = true
RDTSCP = true
64-bit extensions technology available = true
Intel feature flags (0x80000001/ecx):
LAHF/SAHF supported in 64-bit mode = true
LZCNT advanced bit manipulation = true
3DNow! PREFETCH/PREFETCHW instructions = false
brand = "Intel(R) Core(TM) i7-4770R CPU @ 3.20GHz"
L1 TLB/cache information: 2M/4M pages & L1 TLB (0x80000005/eax):
instruction # entries = 0x0 (0)
instruction associativity = 0x0 (0)
data # entries = 0x0 (0)
data associativity = 0x0 (0)
L1 TLB/cache information: 4K pages & L1 TLB (0x80000005/ebx):
instruction # entries = 0x0 (0)
instruction associativity = 0x0 (0)
data # entries = 0x0 (0)
data associativity = 0x0 (0)
L1 data cache information (0x80000005/ecx):
line size (bytes) = 0x0 (0)
lines per tag = 0x0 (0)
associativity = 0x0 (0)
size (KB) = 0x0 (0)
L1 instruction cache information (0x80000005/edx):
line size (bytes) = 0x0 (0)
lines per tag = 0x0 (0)
associativity = 0x0 (0)
size (KB) = 0x0 (0)
L2 TLB/cache information: 2M/4M pages & L2 TLB (0x80000006/eax):
instruction # entries = 0x0 (0)
instruction associativity = L2 off (0)
data # entries = 0x0 (0)
data associativity = L2 off (0)
L2 TLB/cache information: 4K pages & L2 TLB (0x80000006/ebx):
instruction # entries = 0x0 (0)
instruction associativity = L2 off (0)
data # entries = 0x0 (0)
data associativity = L2 off (0)
L2 unified cache information (0x80000006/ecx):
line size (bytes) = 0x40 (64)
lines per tag = 0x0 (0)
associativity = 8 to 15-way (6)
size (KB) = 0x100 (256)
L3 cache information (0x80000006/edx):
line size (bytes) = 0x0 (0)
lines per tag = 0x0 (0)
associativity = L2 off (0)
size (in 512KB units) = 0x0 (0)
RAS Capability (0x80000007/ebx):
MCA overflow recovery support = false
SUCCOR support = false
HWA: hardware assert support = false
scalable MCA support = false
Advanced Power Management Features (0x80000007/ecx):
CmpUnitPwrSampleTimeRatio = 0x0 (0)
Advanced Power Management Features (0x80000007/edx):
TS: temperature sensing diode = false
FID: frequency ID control = false
VID: voltage ID control = false
TTP: thermal trip = false
TM: thermal monitor = false
STC: software thermal control = false
100 MHz multiplier control = false
hardware P-State control = false
TscInvariant = true
CPB: core performance boost = false
read-only effective frequency interface = false
processor feedback interface = false
APM power reporting = false
connected standby = false
RAPL: running average power limit = false
Physical Address and Linear Address Size (0x80000008/eax):
maximum physical address bits = 0x27 (39)
maximum linear (virtual) address bits = 0x30 (48)
maximum guest physical address bits = 0x0 (0)
Extended Feature Extensions ID (0x80000008/ebx):
CLZERO instruction = false
instructions retired count support = false
always save/restore error pointers = false
INVLPGB instruction = false
RDPRU instruction = false
memory bandwidth enforcement = false
MCOMMIT instruction = false
WBNOINVD instruction = false
IBPB: indirect branch prediction barrier = false
interruptible WBINVD, WBNOINVD = false
IBRS: indirect branch restr speculation = false
STIBP: 1 thr indirect branch predictor = false
CPU prefers: IBRS always on = false
CPU prefers: STIBP always on = false
IBRS preferred over software solution = false
IBRS provides same mode protection = false
EFER[LMSLE] not supported = false
INVLPGB supports TLB flush guest nested = false
ppin processor id number supported = false
SSBD: speculative store bypass disable = false
virtualized SSBD = false
SSBD fixed in hardware = false
CPPC: collaborative processor perf ctrl = false
PSFD: predictive store forward disable = false
not vulnerable to branch type confusion = false
branch sampling feature support = false
(vuln to branch type confusion synth) = true
Size Identifiers (0x80000008/ecx):
number of CPU cores = 0x1 (1)
ApicIdCoreIdSize = 0x0 (0)
performance time-stamp counter size = 40 bits (0)
Feature Extended Size (0x80000008/edx):
max page count for INVLPGB instruction = 0x0 (0)
RDPRU instruction max input support = 0x0 (0)
(multi-processing synth) = multi-core (c=4), hyper-threaded (t=2)
(multi-processing method) = Intel leaf 0xb
(APIC widths synth): CORE_width=4 SMT_width=1
(APIC synth): PKG_ID=0 CORE_ID=3 SMT_ID=1
(uarch synth) = Intel Haswell {Haswell}, 22nm
(synth) = Intel Core i*-4000 / Mobile Core i*-4000 (Desktop R) (Crystal Well C1) {Haswell}, 22nm
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-04-07 19:00 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-04-05 22:14 [BUG?] unchecked MSR access error: WRMSR to 0x19c Rui Salvaterra
2023-04-06 21:36 ` Borislav Petkov
2023-04-06 22:31 ` srinivas pandruvada
2023-04-07 18:57 ` Rui Salvaterra
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