* Andy Lutomirski wrote:
> On Mar 6, 2016 12:22 AM, "Ingo Molnar" wrote:
> >
> >
> > * Andy Lutomirski wrote:
> >
> > > This series applies to the result of merging tip:x86/asm and
> > > tip:x86/urgent. I've been testing on a somewhat bastardized base,
> > > because tip currently doesn't work
On Mar 6, 2016 12:22 AM, "Ingo Molnar" wrote:
>
>
> * Andy Lutomirski wrote:
>
> > This series applies to the result of merging tip:x86/asm and
> > tip:x86/urgent. I've been testing on a somewhat bastardized base,
> > because tip currently doesn't work on my laptop in 32-bit mode. (That
> > bug
On Mar 6, 2016 12:31 AM, "Ingo Molnar" wrote:
>
>
> * Andy Lutomirski wrote:
>
> > hpa asked me to get rid of the ASM_CLAC at the beginning of the SYSENTER
> > path. Little did he know...
>
> Btw., before we further change this code, something else I think would be very
> useful. We have countle
* Andy Lutomirski wrote:
> hpa asked me to get rid of the ASM_CLAC at the beginning of the SYSENTER
> path. Little did he know...
Btw., before we further change this code, something else I think would be very
useful. We have countless system call entry points on x86 CPUs, and they are
now
c
* Andy Lutomirski wrote:
> This series applies to the result of merging tip:x86/asm and
> tip:x86/urgent. I've been testing on a somewhat bastardized base,
> because tip currently doesn't work on my laptop in 32-bit mode. (That
> bug is fixed in Linus' tree.)
Hm, which fix is that?
Generally
hpa asked me to get rid of the ASM_CLAC at the beginning of the SYSENTER
path. Little did he know...
This series makes the observed behavior of SYSENTER wrt flags the same
for all sane flags and kernel bitnesses. That is, SYSENTER preserves
flags now unless you do a syscall that explicitly chang
On Sun, Feb 28, 2016 at 9:28 PM, Andy Lutomirski wrote:
>
> While I was doing all this, I also noticed that DR6 and BTF handling
> in do_debug was a bit off. Two of the patches in here try to fix it
> up.
It's worth noting that do_debug is really quite screwed up with or
without this patchset ap
hpa asked me to get rid of the ASM_CLAC at the beginning of the SYSENTER
path. Little did he know...
This series makes the observed behavior of SYSENTER wrt flags the same
for all sane flags and kernel bitnesses. That is, SYSENTER preserves
flags now unless you do a syscall that explicitly chang
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