29 Dec
2017
29 Dec
'17
11:15 p.m.
В Пт, 29/12/2017 в 14:09 -0800, Linus Torvalds пишет:
...
The fact that double faults seem to be implicated does make me want to try to disable that ESPFIX64 code in the #DF handler.
What happens if you take a failing kernel, and then in arch/x86/kernel/traps.c do_double_fault(), you change the
#ifdef CONFIG_X86_ESPFIX64
to just a
#if 0
do you then get an actual double-fault oops report instead of the stall (and NMI oops)?
This is what I get after disabling ESPFIX64 (see attachment).