(In reply to raulvior.bcn from comment #635) ASUSTeK COMPUTER INC. CROSSHAIR VI HERO 7403 08/20/2019 AMD Ryzen 7 1800X Eight-Core Processor 16410MB 2560x1440 pixels Radeon RX 580 Series (POLARIS10, DRM 3.27.0, 5.0.0-25-generic, LLVM 8.0.0) Linux 5.0.0-25-generic (x86_64) #26-Ubuntu SMP Thu Aug 1 12:04:58 UTC 2019 GNU C library / (Ubuntu GLIBC 2.29-0ubuntu2) 2.29 Ubuntu 19.04 BOOT_IMAGE=/vmlinuz-5.0.0-25-generic root=UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX ro quiet splash vt.handoff=1
With the latest BIOS (which provides AGESA 1.0.0.3ABB), Power Supply Idle option did work. This option increases core voltage. Knowing that increasing core voltage stabilized the system for more than 48 hours, I suspected the "performance" governor could be problematic. Because even though it made the CPU to operate at higher frequencies, the voltage was not increased. Values of 0.35, 0.5 or 0.85V were still showing up despite the minimum 3 GHz frequency instead of 2 GHz. I have disabled "power supply idle" UEFI option and started to use the "ondemand" governor, which has a lower minimum frequency of 2 GHz. The system continues to be stable. This is the longest time I have had the system without reboots. Linux reports the following bugs firmware bugs: [ 0.065489] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [ 0.586638] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.586749] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.586830] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.586920] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.586983] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587042] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587110] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587163] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587235] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587309] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587378] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587448] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587522] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587590] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587646] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) [ 0.587699] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) Which effectively turns off MWAIT. cpupower idle-info output: CPUidle driver: acpi_idle CPUidle governor: menu analyzing CPU 0: Number of idle states: 3 Available idle states: POLL C1 C2 POLL: Flags/Description: CPUIDLE CORE POLL IDLE Latency: 0 Usage: 42208 Duration: 98245 C1: Flags/Description: ACPI HLT Latency: 1 Usage: 2147693 Duration: 605512928 C2: Flags/Description: ACPI IOPORT 0x414 Latency: 400 Usage: 4338245 Duration: 71750833391 For my problem, which might not be the same as for the rest of users here, not having MWAIT did not stop the system to reboot randomly. And despite the kernel not detecting MWAIT, the processor still boosts up to 4.1 GHz as intended. C6 States are enabled. The CPU might enter them after entering C1 with HLT. Zenstates.py output: P0 - Enabled - FID = 90 - DID = 8 - VID = 20 - Ratio = 36.00 - vCore = 1.35000 P1 - Enabled - FID = 80 - DID = 8 - VID = 2C - Ratio = 32.00 - vCore = 1.27500 P2 - Enabled - FID = 84 - DID = C - VID = 68 - Ratio = 22.00 - vCore = 0.90000 P3 - Disabled P4 - Disabled P5 - Disabled P6 - Disabled P7 - Disabled C6 State - Package - Enabled C6 State - Core - Enabled I'll report in the future whether if I have had another reboot. I'm nonitoring the system with the Vitals GNOME extension (https://extensions.gnome.org/extension/1460/vitals/). The kernel module asus-wmi-sensors provide the actual data (https://github.com/electrified /asus-wmi-sensors). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
