Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-12-19 Thread Josh Poimboeuf
On Wed, Dec 20, 2017 at 05:41:44AM +, Andrey Vagin wrote: > Hi Josh, > > > Now I see these two warnings on Linus' tree: > > [1.902454] WARNING: stack recursion on stack type 1 > [1.902466] WARNING: can't dereference iret registers at cd089a12 > for ip

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-12-19 Thread Josh Poimboeuf
On Wed, Dec 20, 2017 at 05:41:44AM +, Andrey Vagin wrote: > Hi Josh, > > > Now I see these two warnings on Linus' tree: > > [1.902454] WARNING: stack recursion on stack type 1 > [1.902466] WARNING: can't dereference iret registers at cd089a12 > for ip

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-11-13 Thread Josh Poimboeuf
On Mon, Nov 13, 2017 at 02:06:35PM -0800, Andrei Vagin wrote: > Hi Josh, > > On Thu, Oct 26, 2017 at 8:24 AM, Josh Poimboeuf wrote: > > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > >> Hi Josh, > >> > >> Here is one more warning: > >> [5.852094]

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-11-13 Thread Josh Poimboeuf
On Mon, Nov 13, 2017 at 02:06:35PM -0800, Andrei Vagin wrote: > Hi Josh, > > On Thu, Oct 26, 2017 at 8:24 AM, Josh Poimboeuf wrote: > > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > >> Hi Josh, > >> > >> Here is one more warning: > >> [5.852094] WARNING: can't dereference

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-11-13 Thread Andrei Vagin
Hi Josh, On Thu, Oct 26, 2017 at 8:24 AM, Josh Poimboeuf wrote: > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: >> Hi Josh, >> >> Here is one more warning: >> [5.852094] WARNING: can't dereference iret registers at b6ce01b7ffe0 >> for ip

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-11-13 Thread Andrei Vagin
Hi Josh, On Thu, Oct 26, 2017 at 8:24 AM, Josh Poimboeuf wrote: > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: >> Hi Josh, >> >> Here is one more warning: >> [5.852094] WARNING: can't dereference iret registers at b6ce01b7ffe0 >> for ip

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-26 Thread Andrei Vagin
On Thu, Oct 26, 2017 at 10:24:29AM -0500, Josh Poimboeuf wrote: > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > > Hi Josh, > > > > Here is one more warning: > > [5.852094] WARNING: can't dereference iret registers at > > b6ce01b7ffe0 for ip

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-26 Thread Andrei Vagin
On Thu, Oct 26, 2017 at 10:24:29AM -0500, Josh Poimboeuf wrote: > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > > Hi Josh, > > > > Here is one more warning: > > [5.852094] WARNING: can't dereference iret registers at > > b6ce01b7ffe0 for ip

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-26 Thread Josh Poimboeuf
On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > Hi Josh, > > Here is one more warning: > [5.852094] WARNING: can't dereference iret registers at b6ce01b7ffe0 > for ip entry_SYSCALL_64_fastpath+0xa/0xc2 Thanks, I hadn't seen this one yet. I suspect this is in the middle

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-26 Thread Josh Poimboeuf
On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > Hi Josh, > > Here is one more warning: > [5.852094] WARNING: can't dereference iret registers at b6ce01b7ffe0 > for ip entry_SYSCALL_64_fastpath+0xa/0xc2 Thanks, I hadn't seen this one yet. I suspect this is in the middle

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-25 Thread Andrei Vagin
Hi Josh, Here is one more warning: [5.852094] WARNING: can't dereference iret registers at b6ce01b7ffe0 for ip entry_SYSCALL_64_fastpath+0xa/0xc2 [avagin@laptop linux]$ git describe tip/auto-latest v4.14-rc6-471-g376214a8543d On Fri, Oct 20, 2017 at 11:21:33AM -0500, Josh Poimboeuf

Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-25 Thread Andrei Vagin
Hi Josh, Here is one more warning: [5.852094] WARNING: can't dereference iret registers at b6ce01b7ffe0 for ip entry_SYSCALL_64_fastpath+0xa/0xc2 [avagin@laptop linux]$ git describe tip/auto-latest v4.14-rc6-471-g376214a8543d On Fri, Oct 20, 2017 at 11:21:33AM -0500, Josh Poimboeuf

[PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-20 Thread Josh Poimboeuf
This fixes the following ORC warning in the 'int3' entry code: WARNING: can't dereference iret registers at 8801c5f17fe0 for ip 95f0d94b The ORC metadata had the wrong stack offset for the iret registers. Their location on the stack is dependent on whether the exception has an

[PATCH 1/3] x86/entry: Fix idtentry unwind hint

2017-10-20 Thread Josh Poimboeuf
This fixes the following ORC warning in the 'int3' entry code: WARNING: can't dereference iret registers at 8801c5f17fe0 for ip 95f0d94b The ORC metadata had the wrong stack offset for the iret registers. Their location on the stack is dependent on whether the exception has an