Issue #276 has been updated by Arthur Heymans.
config SMM_MODULE_STACK_SIZE
hex
default 0x800 if ARCH_RAMSTAGE_X86_64
default 0x400
So just bumping this to always use 0x800 might be a solution
----------------------------------------
Bug #276: SPI flash console output causes `SMM Handler caused a stack overflow`
https://ticket.coreboot.org/issues/276#change-1864
* Author: Paul Menzel
* Status: New
* Priority: Normal
* Start date: 2020-07-19
----------------------------------------
On the Lenovo T60 (Type 2007 with dedicated ATI/AMD graphics device), coreboot
built with *SPI Flash console output* (`CONFIG_CONSOLE_SPI_FLASH=y`) fails to
boot due to a stack overflow:
```
FMAP: area COREBOOT found @ 60200 (1703424 bytes)
CBFS: Locating 'fallback/dsdt.aml'
CBFS: Found @ offset 39300 size 3138
FMAP: area COREBOOT found @ 60200 (1703424 bytes)
CBFS: Locating 'fallback/slic'
CBFS: 'fallback/slic' not found.
ACPI: Writing ACPI tables at bfb51000.
ACPI: * FACS
ACPI: * DSDT
FMAP: area CONSOLE found @ 0 (131072 bytes)
coreboot-4.12-1529-gaba8103093 Sun Jul 19 07:24:18 UTC 2020 smm starting (log
level: 7)...
canary 0x0 != 0xbfeffc00
SMM Handler caused a stack overflow
```
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