[Bug 210457] Fan sporadically maxed on wake-up due to unavailable sensor temperature

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210457

Daniel T. (pter...@gmail.com) changed:

   What|Removed |Added

 CC||pter...@gmail.com

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[Bug 210457] New: Fan sporadically maxed on wake-up due to unavailable sensor temperature

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210457

Bug ID: 210457
   Summary: Fan sporadically maxed on wake-up due to unavailable
sensor temperature
   Product: ACPI
   Version: 2.5
Kernel Version: 5.4.0-53-generic
  Hardware: All
OS: Linux
  Tree: Mainline
Status: NEW
  Severity: normal
  Priority: P1
 Component: Power-Thermal
  Assignee: acpi_power-ther...@kernel-bugs.osdl.org
  Reporter: pter...@gmail.com
Regression: No

I'm running Kubuntu on my Lenovo ThinkPad X1 Carbon (4th generation). Since a
recent upgrade to 20.04 LTS, I have the following problem.

Upon wake-up from standby the laptop's fan is sporadically set on max speed
(around 7000 RPM) regardless of the actual CPU load. It helps to put the laptop
to sleep and wake it up again. Then there is a chance the fan will react
normally to CPU load and temperature.

Running sensors when the fan is maxed, I get the following:

$ sensors
iwlwifi_1-virtual-0
Adapter: Virtual device
temp1:+35.0°C  

pch_skylake-virtual-0
Adapter: Virtual device
temp1:+42.5°C  

BAT0-acpi-0
Adapter: ACPI interface
in0:  16.97 V  

thinkpad-isa-
Adapter: ISA adapter
fan1:6932 RPM
temp1:N/A  
temp2:N/A  
temp3: +0.0°C  
temp4: +0.0°C  
temp5: +0.0°C  
temp6: +0.0°C  
temp7: +0.0°C  
temp8: +0.0°C  
temp9: +0.0°C  
temp10:+1.0°C  
temp11:+0.0°C  
temp12:+0.0°C  
temp13:+0.0°C  
temp14:+0.0°C  
temp15:+0.0°C  
temp16:+0.0°C  

coretemp-isa-
Adapter: ISA adapter
Package id 0:  +43.0°C  (high = +100.0°C, crit = +100.0°C)
Core 0:+42.0°C  (high = +100.0°C, crit = +100.0°C)
Core 1:+43.0°C  (high = +100.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:+48.0°C  (crit = +128.0°C)


And running it when the fan behaves normally, i.e. in accordance with the CPU
load, I notice that temp1 is no longer N/A but has a value.

...
thinkpad-isa-
Adapter: ISA adapter
fan1:3240 RPM
temp1:+46.0°C  
temp2:N/A  
...

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[Bug 210449] acpi_device_add: buffer overflow in strcpy

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210449

--- Comment #1 from Jethro Beekman (ker...@jbeekman.nl) ---
Created attachment 293905
  --> https://bugzilla.kernel.org/attachment.cgi?id=293905=edit
ACPI tables dump

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[Bug 210449] New: acpi_device_add: buffer overflow in strcpy

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210449

Bug ID: 210449
   Summary: acpi_device_add: buffer overflow in strcpy
   Product: ACPI
   Version: 2.5
Kernel Version: next-20201201
  Hardware: All
OS: Linux
  Tree: Mainline
Status: NEW
  Severity: normal
  Priority: P1
 Component: Config-Other
  Assignee: acpi_config-ot...@kernel-bugs.osdl.org
  Reporter: ker...@jbeekman.nl
Regression: No

[0.00] Linux version 5.10.0-rc6-next-20201201 (root@sgx-kernel-build)
(gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, GNU ld (GNU Binutils for
Ubuntu) 2.26.1) #7 SMP Wed Dec 2 09:18:07 UTC 2020
[0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-5.10.0-rc6-next-20201201
root=UUID=4ec1dc08-af51-4080-b927-561417afaa77 ro console=tty1 console=ttyS0
earlyprintk=ttyS0
[0.00] KERNEL supported cpus:
[0.00]   Intel GenuineIntel
[0.00]   AMD AuthenticAMD
[0.00]   Hygon HygonGenuine
[0.00]   Centaur CentaurHauls
[0.00]   zhaoxin   Shanghai  
[0.00] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point
registers'
[0.00] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[0.00] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[0.00] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[0.00] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[0.00] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[0.00] x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
[0.00] x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
[0.00] x86/fpu: Enabled xstate features 0x1f, context size is 960
bytes, using 'compacted' format.
[0.00] BIOS-provided physical RAM map:
[0.00] BIOS-e820: [mem 0x-0x0009] usable
[0.00] BIOS-e820: [mem 0x000c-0x000f] reserved
[0.00] BIOS-e820: [mem 0x0010-0x3ed4bfff] usable
[0.00] BIOS-e820: [mem 0x3ed4c000-0x3ed4cfff] ACPI data
[0.00] BIOS-e820: [mem 0x3ed4d000-0x3ee7afff] usable
[0.00] BIOS-e820: [mem 0x3ee7b000-0x3ee99fff] ACPI data
[0.00] BIOS-e820: [mem 0x3ee9a000-0x3eef1fff] usable
[0.00] BIOS-e820: [mem 0x3eef2000-0x3ef1afff] reserved
[0.00] BIOS-e820: [mem 0x3ef1b000-0x3ff9afff] usable
[0.00] BIOS-e820: [mem 0x3ff9b000-0x3fff2fff] reserved
[0.00] BIOS-e820: [mem 0x3fff3000-0x3fffafff] ACPI data
[0.00] BIOS-e820: [mem 0x3fffb000-0x3fffefff] ACPI NVS
[0.00] BIOS-e820: [mem 0x3000-0x3fff] usable
[0.00] BIOS-e820: [mem 0x0001-0x0001bfff] usable
[0.00] BIOS-e820: [mem 0x0001c020-0x0001c1bf] reserved
[0.00] BIOS-e820: [mem 0x0001c1e0-0x0001c1ff] reserved
[0.00] printk: bootconsole [earlyser0] enabled
[0.00] NX (Execute Disable) protection: active
[0.00] efi: EFI v2.70 by Microsoft
[0.00] efi: ACPI=0x3fffa000 ACPI 2.0=0x3fffa014 SMBIOS=0x3ffd8000
SMBIOS 3.0=0x3ffd6000 MEMATTR=0x3f9e0218 RNG=0x3ffda818 
[0.00] efi: seeding entropy pool
[0.00] SMBIOS 3.1.0 present.
[0.00] DMI: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS
Hyper-V UEFI Release v4.1 06/17/2020
[0.00] Hypervisor detected: Microsoft Hyper-V
[0.00] Hyper-V: features 0x2e7f, hints 0x60c2c, misc 0xed7b2
[0.00] Hyper-V Host Build:18362-10.0-3-0.3186
[0.00] Hyper-V: LAPIC Timer Frequency: 0xc3500
[0.00] tsc: Marking TSC unstable due to running on Hyper-V
[0.00] Hyper-V: Using hypercall for remote TLB flush
[0.00] clocksource: hyperv_clocksource_tsc_page: mask:
0x max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
[0.02] tsc: Detected 3696.012 MHz processor
[0.002124] last_pfn = 0x1c max_arch_pfn = 0x4
[0.004543] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
Memory KASLR using RDRAND RDTSC...
[0.008675] last_pfn = 0x4 max_arch_pfn = 0x4
[0.021667] check: Scanning 1 areas for low memory corruption
[0.024119] Using GB pages for direct mapping
[0.026644] Secure boot disabled
[0.029161] RAMDISK: [mem 0x2c75c000-0x2f097fff]
[0.033563] ACPI: Early table checksum verification disabled
[0.037148] ACPI: RSDP 0x3FFFA014 24 (v02 VRTUAL)
[0.040591] ACPI: XSDT 0x3FFF90E8 5C (v01 VRTUAL MICROSFT
0001 MSFT 0001)
[0.044286] ACPI: FACP 0x3FFF8000 000114 (v06 VRTUAL MICROSFT
0001 MSFT 0001)
[0.048784] ACPI: DSDT 0x3EE7B000 01E184 (v02 MSFTVM DSDT01  
0001