Messages in this thread | | | From | Stas Sergeev <> | Subject | stop breaking dosemu (Re: x86/kconfig/32: Rename CONFIG_VM86 and default it to 'n') | Date | Wed, 2 Sep 2015 12:37:51 +0300 |
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https://lkml.org/lkml/2015/7/21/208
Guys, you gonna be kidding. Is this a new trend of breaking dosemu, or what?
> VM86 is entirely broken if ptrace, syscall auditing, or > NOHZ_FULL is in use. The code is a big undocumented mess, it's > a real PITA to test, and it looks like a big chunk of vm86_32.c
It is a CPU feature that kernel should support, and always did without any problems. If it started to have problems because of your actions, then you can as well fix your code.
> No one should be using it anyway. Use DOSBOX or KVM instead.
Have you done the benchmarks between dosbox and dosemu before saying that? Please do, thanks. (don't forget to include dosemu2 in your benchmarks too, as it outperforms both)
> Let's accelerate its slow death.
> + Enabling this option adds considerable attack surface to the > + kernel and slows down system calls and exception handling.
Yes, I realize that threatening people with the "considerable attack surface" is a good way to "accelerate its slow death", but please care to explain that attack surface, thankyou.
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