New subject: [coreboot - Bug #513] clear_memory() triggers null dereference exception when running coreboot in long (64-bit) mode

17 Nov 2023


      Issue #513 has been reported by Bill XIE.
----------------------------------------
Bug #513: clear_memory() triggers null dereference exception when running coreboot in long (64-bit) mode 
https://ticket.coreboot.org/issues/513
* Author: Bill XIE
* Status: New
* Priority: Low
* Category: coreboot common code
* Target version: master
* Start date: 2023-11-17
* Affected versions: master
* Affected hardware: X200
----------------------------------------
Enabling CONFIG_USE_EXP_X86_64_SUPPORT and CONFIG_SECURITY_CLEAR_DRAM_ON_REGULAR_BOOT in the mean time on my X200 triggers null dereference exception. Register dump in attached log suggests that clearing DRAM 0000000100000000-0000000180000000 triggers the exception, and the used memset() implementation in src/arch/x86/memset.c seems unable to handle such usage when built against X86_64.
---Files--------------------------------
clrmem-amd64-nulderef.log (5.21 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 - Bug #513] (New) clear_memory() triggers null dereference exception when running coreboot in long (64-bit) mode