Re: [PATCH] x86/idt: Fix the X86_TRAP_BP gate

2017-09-01 Thread Andrei Vagin
On Fri, Sep 01, 2017 at 10:26:30AM +0200, Ingo Molnar wrote: > > Hi Andrei, > > * Andrei Vagin wrote: > > > Hi Thomas, > > > > We run CRIU tests for linux-next and today they detected an issue. I've > > bisected this problem and it looks like a problem is in this patch. > > Ok, there appears

Re: [PATCH] x86/idt: Fix the X86_TRAP_BP gate

2017-09-01 Thread Thomas Gleixner
On Fri, 1 Sep 2017, Ingo Molnar wrote: > Subject: x86/idt: Fix the X86_TRAP_BP gate > From: Ingo Molnar > > Andrei Vagin reported a CRIU regression and bisected it back to: > > 90f6225fba0c ("x86/idt: Move IST stack based traps to table init") > > This table init conversion loses the system-g

[PATCH] x86/idt: Fix the X86_TRAP_BP gate

2017-09-01 Thread Ingo Molnar
Hi Andrei, * Andrei Vagin wrote: > Hi Thomas, > > We run CRIU tests for linux-next and today they detected an issue. I've > bisected this problem and it looks like a problem is in this patch. Ok, there appears to be a bug in that conversion - does the patch below fix the regression for you?