Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-13 Thread Christophe Leroy
On 02/13/2020 02:28 PM, Larry Finger wrote: On 2/11/20 1:23 PM, Christophe Leroy wrote: Can you send me a picture of that BUG Unable to handle kernel data access with all the registers values etc..., together with the matching vmlinux ? First thing is to identify where we are when that happ

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-13 Thread Christophe Leroy
Larry, Le 14/02/2020 à 00:09, Larry Finger a écrit : Christophe, With this patch, it gets further. Sometime after the boot process tries to start process init, it crashes with the unable to read data at 0x000157a0 with a faulting address of 0xc001683c. The screenshot is attached and the gzip

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-14 Thread Christophe Leroy
Le 14/02/2020 à 07:24, Christophe Leroy a écrit : Larry, Le 14/02/2020 à 00:09, Larry Finger a écrit : Christophe, With this patch, it gets further. Sometime after the boot process tries to start process init, it crashes with the unable to read data at 0x000157a0 with a faulting address o

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-14 Thread Larry Finger
On 2/14/20 12:24 AM, Christophe Leroy wrote: Did you try with the patch at https://patchwork.ozlabs.org/patch/1237387/ ? Christophe, When I apply that patch, there is an error at --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -301,6 +301,39 @@ MachineCheck:

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-14 Thread Larry Finger
On 2/14/20 12:24 AM, Christophe Leroy wrote: Did you try with the patch at https://patchwork.ozlabs.org/patch/1237387/ ? Christophe, When I apply that patch, there is an error at --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -301,6 +301,39 @@ MachineCheck:

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-14 Thread Christophe Leroy
On 02/14/2020 06:24 PM, Larry Finger wrote: On 2/14/20 12:24 AM, Christophe Leroy wrote: Did you try with the patch at https://patchwork.ozlabs.org/patch/1237387/ ? Christophe, When I apply that patch, there is an error at --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/he

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-14 Thread Larry Finger
Christophe, On 2/14/20 1:35 PM, Christophe Leroy wrote: --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -270,6 +270,9 @@ __secondary_hold_acknowledge:   * pointer when we take an exception from supervisor mode.)   *    -- paulus.   */ +#ifdef CONFIG_PPC_CHRP +1:   

Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit cd08f109 with CONFIG_VMAP_STACK=y

2020-02-14 Thread Christophe Leroy
Le 15/02/2020 à 03:42, Larry Finger a écrit : Christophe, On 2/14/20 1:35 PM, Christophe Leroy wrote: --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -270,6 +270,9 @@ __secondary_hold_acknowledge:    * pointer when we take an exception from supervisor mode.)    *