Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-08-02 Thread Arnd Bergmann
On Tue, Aug 2, 2022 at 8:47 AM Christophe Leroy wrote: > Le 26/07/2022 à 15:44, Segher Boessenkool a écrit : > > Whoops :-) We need fixes for processor implementation bugs all the > > time of course, but this is a massive *design* bug. I'm surprised this > > CPU still works as well as it does! >

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-08-01 Thread Christophe Leroy
Le 26/07/2022 à 15:44, Segher Boessenkool a écrit : > On Tue, Jul 26, 2022 at 11:02:59AM +0200, Arnd Bergmann wrote: >> On Tue, Jul 26, 2022 at 10:34 AM Pali Rohár wrote: >>> On Monday 25 July 2022 16:54:16 Segher Boessenkool wrote: The EH field in larx insns is new since ISA 2.05, and some

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-26 Thread Christophe Leroy
Le 26/07/2022 à 10:34, Pali Rohár a écrit : > On Monday 25 July 2022 16:54:16 Segher Boessenkool wrote: >> On Mon, Jul 25, 2022 at 10:10:09PM +0200, Pali Rohár wrote: >>> On Monday 25 July 2022 16:20:49 Christophe Leroy wrote: >>> Now I did again clean test with same Debian 10 cross compiler. >>>

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-26 Thread Segher Boessenkool
On Tue, Jul 26, 2022 at 04:01:00PM +0200, Pali Rohár wrote: > On Tuesday 26 July 2022 08:44:05 Segher Boessenkool wrote: > > And the architecture says > > Programming Note > > Warning: On some processors that comply with versions of the > > architecture that precede Version 2.00 > > But e500

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-26 Thread Pali Rohár
On Tuesday 26 July 2022 08:44:05 Segher Boessenkool wrote: > On Tue, Jul 26, 2022 at 11:02:59AM +0200, Arnd Bergmann wrote: > > On Tue, Jul 26, 2022 at 10:34 AM Pali Rohár wrote: > > > On Monday 25 July 2022 16:54:16 Segher Boessenkool wrote: > > > > The EH field in larx insns is new since ISA 2.0

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-26 Thread Segher Boessenkool
On Tue, Jul 26, 2022 at 11:02:59AM +0200, Arnd Bergmann wrote: > On Tue, Jul 26, 2022 at 10:34 AM Pali Rohár wrote: > > On Monday 25 July 2022 16:54:16 Segher Boessenkool wrote: > > > The EH field in larx insns is new since ISA 2.05, and some ISA 1.x cpu > > > implementations actually raise an ill

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-26 Thread Arnd Bergmann
On Tue, Jul 26, 2022 at 10:34 AM Pali Rohár wrote: > On Monday 25 July 2022 16:54:16 Segher Boessenkool wrote: > > On Mon, Jul 25, 2022 at 10:10:09PM +0200, Pali Rohár wrote: > > > On Monday 25 July 2022 16:20:49 Christophe Leroy wrote: > > > Now I did again clean test with same Debian 10 cross co

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-26 Thread Pali Rohár
On Monday 25 July 2022 16:54:16 Segher Boessenkool wrote: > On Mon, Jul 25, 2022 at 10:10:09PM +0200, Pali Rohár wrote: > > On Monday 25 July 2022 16:20:49 Christophe Leroy wrote: > > Now I did again clean test with same Debian 10 cross compiler. > > > > $ git clone > > https://git.kernel.org/pub

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-25 Thread Segher Boessenkool
On Mon, Jul 25, 2022 at 10:10:09PM +0200, Pali Rohár wrote: > On Monday 25 July 2022 16:20:49 Christophe Leroy wrote: > Now I did again clean test with same Debian 10 cross compiler. > > $ git clone > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git && cd linux > $ git checkout

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-25 Thread Pali Rohár
On Monday 25 July 2022 16:20:49 Christophe Leroy wrote: > Le 25/07/2022 à 14:52, Pali Rohár a écrit : > > On Monday 25 July 2022 18:20:01 Michael Ellerman wrote: > >> Pali Rohár writes: > >>> On Saturday 23 July 2022 14:42:22 Christophe Leroy wrote: > Le 22/07/2022 à 11:09, Pali Rohár a écrit

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-25 Thread Christophe Leroy
Le 25/07/2022 à 14:52, Pali Rohár a écrit : > On Monday 25 July 2022 18:20:01 Michael Ellerman wrote: >> Pali Rohár writes: >>> On Saturday 23 July 2022 14:42:22 Christophe Leroy wrote: Le 22/07/2022 à 11:09, Pali Rohár a écrit : > Trying to boot mainline Linux kernel v5.15+, including

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-25 Thread Pali Rohár
On Monday 25 July 2022 18:20:01 Michael Ellerman wrote: > Pali Rohár writes: > > On Saturday 23 July 2022 14:42:22 Christophe Leroy wrote: > >> Le 22/07/2022 à 11:09, Pali Rohár a écrit : > >> > Trying to boot mainline Linux kernel v5.15+, including current version > >> > from master branch, on Fr

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-25 Thread Michael Ellerman
Pali Rohár writes: > On Saturday 23 July 2022 14:42:22 Christophe Leroy wrote: >> Le 22/07/2022 à 11:09, Pali Rohár a écrit : >> > Trying to boot mainline Linux kernel v5.15+, including current version >> > from master branch, on Freescale P2020 does not work. Kernel does not >> > print anything t

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-23 Thread Pali Rohár
Hello, On Saturday 23 July 2022 14:42:22 Christophe Leroy wrote: > Hello, > > Le 22/07/2022 à 11:09, Pali Rohár a écrit : > > Hello! > > > > Trying to boot mainline Linux kernel v5.15+, including current version > > from master branch, on Freescale P2020 does not work. Kernel does not > > print

Re: Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-23 Thread Christophe Leroy
Hello, Le 22/07/2022 à 11:09, Pali Rohár a écrit : > Hello! > > Trying to boot mainline Linux kernel v5.15+, including current version > from master branch, on Freescale P2020 does not work. Kernel does not > print anything to serial console, seems that it does not work and after > timeout watchd

Regression: Linux v5.15+ does not boot on Freescale P2020

2022-07-22 Thread Pali Rohár
Hello! Trying to boot mainline Linux kernel v5.15+, including current version from master branch, on Freescale P2020 does not work. Kernel does not print anything to serial console, seems that it does not work and after timeout watchdog reset the board. I run git bisect and it found following com