Issue #631 has been updated by Martin Ostrica.
David Zeller wrote in #note-11: > Victor Bessonov wrote in #note-10: > > Sorry for the late answer - my old laptop died, so I had to rebuild my env. > > So, I combined CB:94028 with CB:94042 as @Alicja suggested and... it > > resulted in a brick (will pull my clip out of the drawer soon) > > I tried debugging it and it looks like something's off in romstage - I get > > this "no channels are populated" error message > > Maybe I should rebuild only CB:94028 on master branch. BTW, I was surprised > > to see that coreboot+EDK2+iPXE does not fit into the ROM chip now, I had to > > remove EFI shell. > > You can try CB:94992 I have x2e n150 mini pc as well and I am trying to run opnsense on it with coreboot, I also had issue with irq9/stability and applied all mentioned patched from CB:94042 and CB:94992 and I can confirm that this resolves irq storm issue and boot with no "no channels are populated" error. here is output of vmstat -i: interrupt total rate cpu0:timer 326841 719 cpu1:timer 75385 166 cpu2:timer 70448 155 cpu3:timer 69313 152 irq128: xhci0 215 0 irq130: igc0:rxq0 4029 9 irq131: igc0:rxq1 11254 25 irq132: igc0:rxq2 3942 9 irq133: igc0:rxq3 3166 7 irq134: igc0:aq 2 0 irq135: igc1:rxq0 4648 10 irq136: igc1:rxq1 11056 24 irq137: igc1:rxq2 3464 8 irq138: igc1:rxq3 3475 8 irq139: igc1:aq 2 0 irq150: nvme0:admin 17 0 irq151: nvme0:io0 2701 6 irq152: nvme0:io1 3146 7 irq153: nvme0:io2 3437 8 irq154: nvme0:io3 2682 6 Total 599223 1318 before it was irq9 there with ~180k rate Let me know if you need any other output, I have console adapter as well. ---------------------------------------- Bug #631: Topton X2E (N150) instabilities/timer issues https://ticket.coreboot.org/issues/631#change-2407 * 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) SuperIODump.txt (1.48 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]
