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authorRaul E Rangel <rrangel@chromium.org>2021-08-17 17:31:17 -0600
committerRaul Rangel <rrangel@chromium.org>2021-08-18 15:08:59 +0000
commit5f80e7c764b9a1cb46beeaa490a4f60be04abcd4 (patch)
treeee399101f8051491d5c5644dcf424ba664358c74
parent35a4bfa9ce8b7f3df6aded9af6bb3e8a287f80c1 (diff)
soc/amd/cezanne: Disable Co-op multitasking
There are gremlins in the system. thread_coop_enable has an assert. This is currently problematic for two reasons. assert(current->can_yield <= 0); When doing smm_do_relocate we are entering a deadlock. The root cause hasn't been quite found yet, but it's related to co-op multi-threading. For some reason the assert in thread_coop_enable is firing when releasing the console_lock spin lock. I'm assuming cpu_info hasn't been initialized yet. The assert tries to perform a printk, but since the console_lock is still held we end up in a dead lock. This dead lock will generally not happen after a warm reset. Again I'm assuming because the cpu_info struct has some valid values at this point. For now disable multi-tasking until we fix the cpu_info initialization. BUG=b:194391185 TEST=Boot guybrush to OS Co-developed-by: nikolai.vyssotski@amd.corp-partner.google.com Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Ia3143f538a31b5aaaea104aa1d8bcf44e6dcb528 Reviewed-on: https://review.coreboot.org/c/coreboot/+/57005 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: Nikolai Vyssotski <nikolai.vyssotski@amd.corp-partner.google.com> Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com> Reviewed-by: Rob Barnes <robbarnes@google.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/soc/amd/cezanne/Kconfig2
1 files changed, 0 insertions, 2 deletions
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 306f181dd0..81597d075c 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -18,7 +18,6 @@ config SOC_SPECIFIC_OPTIONS
select BOOT_DEVICE_SUPPORTS_WRITES if BOOT_DEVICE_SPI_FLASH
select DRIVERS_USB_ACPI
select DRIVERS_I2C_DESIGNWARE
- select COOP_MULTITASKING
select DRIVERS_USB_PCI_XHCI
select FSP_COMPRESS_FSP_M_LZMA
select FSP_COMPRESS_FSP_S_LZMA
@@ -31,7 +30,6 @@ config SOC_SPECIFIC_OPTIONS
select IDT_IN_EVERY_STAGE
select IOAPIC
select PARALLEL_MP_AP_WORK
- select PAYLOAD_PRELOAD
select PLATFORM_USES_FSP2_0
select PROVIDES_ROM_SHARING
select RESET_VECTOR_IN_RAM