Hi, Update: I found the bad commit:
commit 5315e96abfa5b45fcd53149df5ebaa069a830558 Author: Arthur Heymans <[email protected]> Date: Fri May 14 11:22:31 2021 +0200 arch/x86/postcar: Use a separate stack for C execution Add a stack in .bss for C execution. This will make it easier to move the setup of MTRRs in C code. Hehehe, this confirmed my suspicion that the problem was in the POSTCAR...should have done a grep for postcar in git log instead of the painful bisect :D So denverton_ns is broken due to this commit, how can we proceed? I guess a git revert is not an option right, since this change looks like a base for future implementations... Please let me know if you need more tests. Kind regards, Sumo On Mon, Jun 13, 2022 at 9:37 AM Sumo <[email protected]> wrote: > Thanks Paul, I'll try bisect. > > Do we have any instructions of how to use the normal/fallback coreboot > stage prefixes? During the bisect it will be painful always bricking the > board and having to use a flash programmer for restoring instead of using > flashrom. > > Should I build setting BOOTBLOCK_NORMAL + normal prefix, and then reuse a > prebuilt coreboot.rom with fallback stages included? Anything else needed > besides having a cmos layout? > > Kind regards, > Sumo > > > On Sat, Jun 11, 2022 at 3:15 AM Paul Menzel <[email protected]> wrote: > >> Dear Suma, >> >> >> Am 11.06.22 um 00:16 schrieb Sumo: >> >> > My denverton system is crashing after the FSM memory init, probably when >> > jumping to POSTCAR. The following lines are shown before the crash: >> > >> > [DEBUG] TPM: Digest of `CBFS: fallback/postcar` to PCR 2 logged >> > [DEBUG] Loading module at 0x7f7ce000 with entry 0x7f7ce031. filesize: >> > 0x6060 memsize: 0xc358 >> > [DEBUG] Processing 246 relocs. Offset value of 0x7d7ce000 >> > [DEBUG] BS: romstage times (exec / console): total (unknown) / 1350 ms >> > >> > Below are my CAR settings: >> > # CONFIG_USE_DENVERTON_NS_CAR_NEM_ENHANCED is not set >> > CONFIG_USE_DENVERTON_NS_FSP_CAR=y >> > CONFIG_ARCH_POSTCAR_X86_32=y >> > CONFIG_POSTCAR_STAGE=y >> > CONFIG_CARDBUS_PLUGIN_SUPPORT=y >> > CONFIG_FSP_CAR=y >> > CONFIG_POSTCAR_CONSOLE=y >> > >> > Everything is fine when using coreboot v4.14. >> > >> > I have tried using CONFIG_USE_DENVERTON_NS_CAR_NEM_ENHANCED but things >> got >> > even worse - in this case nothing is shown in the console output. >> > >> > Any suggestions? >> >> It’d be great if you could bisect. >> >> >> Kind regards, >> >> Paul >> >> >> PS: In your address book please spell coreboot lowercase. ;-) >> >
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