Issue #631 has been updated by Sebastian Müller.
The coreboot.log you attached actually pins this down. Line ~483 "PNP: 002e.4 enabled" shows the IT8625E Environment Controller (HWM) LDN is active, and line ~725 "PNP: 002e.4 70 irq ... not assigned in devicetree" shows its IRQ register is never written, so it stays at the power-on default IRQ 9 = the ACPI SCI. That is the "irq 9: nobody cared" in your linux-boot.log: a fanless box, empty fan header, the HWM stuck asserting the SCI. The fix is to declare that LDN with no IRQ. I have a patch ready but need two values from the running board: superiotool -d # LDN 0x04 (EC): the two IO bases (reg 0x60, 0x62) and reg 0x70 Send those and I will finish the devicetree change (irq 0x70 = 0, plus the real IO bases) and put it on Gerrit for you to flash and confirm. ---------------------------------------- Bug #631: Topton X2E (N150) instabilities/timer issues https://ticket.coreboot.org/issues/631#change-2342 * Author: Victor Bessonov * Status: New * Priority: Normal * Target version: none * Start date: 2026-02-23 * Affected versions: main * Affected hardware: Topton X2E * Affected OS: Linux, BSD ---------------------------------------- Image built from master (c9578eac246) as 25.12 does not support iPXE with SecureBoot in edk2 payload. After flashing the image a few bugs were discovered (all may be related to the same root cause) 1. Some USB drives and NVMes may be not detected in edk2 on boot - setting port speed to Gen3 manually and turning off power saving mostly helps with NVMes, however some flash drives may still need to be unplugged and re-plugged back 2. Booting from Ventoy USB mostly doesn't work - some linux images wait for mount and then fail with timout, others will just hang. Ventoy itself boots quickly and reliably. 3. USB booting from images written directly to flash mostly works, however BSD may still hang or panic out with spinlock timeout panic (OpnSense/FreeBSD) 4. Linux kernel reports about broken IRQ 9 (acpi_sci=low seemingly removes the message from dmesg) 5. After several tries to boot, BSD system got installed without any issues, however after rebooting into it the system became extremely laggy (even printing to the console worked word-by-word, high LA without any userspace CPU-loading process), switching the timer from LAPIC to HPET on running system seemingly resolved all the laginess instantly 6. Linux kernel reports that HPET is dysfunctional in PC10 (shouldn't it be fine on Alder Lake?) Build config (I tried both with default xApic and x2Apic - doesn't seem to change anything): ``` shell CONFIG_VENDOR_TOPTON=y # CONFIG_POST_DEVICE is not set # CONFIG_POST_IO is not set CONFIG_TPM_MEASURED_BOOT=y CONFIG_BOARD_TOPTON_X2E_N150=y # CONFIG_FSP_HYPERTHREADING is not set CONFIG_X2APIC_ONLY=y CONFIG_TPM2=y CONFIG_TPM_MEASURE_MRC_CACHE=y CONFIG_DEFAULT_CONSOLE_LOGLEVEL_6=y CONFIG_PAYLOAD_EDK2=y CONFIG_EDK2_ENABLE_IPXE=y ``` The majority of these problems can be explained by faulty timer - the reason for a single ticket I'm also attaching the patch suggested in Discord channel for reference - doesn't seem to solve the issue ---Files-------------------------------- coreboot.log (63.9 KB) linux-boot.log (274 KB) gpio.patch (3.1 KB) -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: https://ticket.coreboot.org/my/account _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
