> > > How early does it hang ? Any oops or trace ?
> >
> > Very early - instead oif kernel emssages, I see some repeated gibberish
> > of some characteers, and the background turns white.
> > I am booting from yaboot, background is normally black.
>
> Ok, could you try by replacing #ifdef CONFIG_
From: Desnes Augusto Nunes do Rosario
Date: Fri, 17 Nov 2017 09:09:04 -0200
> This patch fixes the dma_mapping_error call to use the correct dma_addr
> which is inside the ibmvnic_vpd struct. Moreover, it fixes an uninitialized
> warning regarding a local dma_addr variable which is not used anymo
During a kdump kernel boot in PowerPC, we request a reset of the PHBs
to the FW. It makes sense, since if we are booting a kdump kernel it
means we had some trouble before and we cannot rely in the adapters'
health; they could be in a bad state, hence the reset is needed.
But this reset is useful
On 11/17/2017 03:26 PM, Thadeu Lima de Souza Cascardo wrote:
> On Thu, Nov 16, 2017 at 07:26:43PM -0200, Guilherme G. Piccoli wrote:
>> On 11/06/2017 03:34 PM, Thadeu Lima de Souza Cascardo wrote:
>>> From: Mahesh Salgaonkar
>>>
>>> The kernel boot parameter 'nr_cpus=' allows one to specify numb
On Thu, Nov 16, 2017 at 07:26:43PM -0200, Guilherme G. Piccoli wrote:
> On 11/06/2017 03:34 PM, Thadeu Lima de Souza Cascardo wrote:
> > From: Mahesh Salgaonkar
> >
> > The kernel boot parameter 'nr_cpus=' allows one to specify number of
> > possible cpus in the system. In the normal scenario the
On Fri, 2017-11-17 at 10:16 -0600, Brian King wrote:
> On 11/16/2017 04:57 PM, Michael Ellerman wrote:
> > Brian King writes:
> >
> > > On 11/16/2017 01:33 PM, Jesse Brandeburg wrote:
> > > > On Thu, 16 Nov 2017 09:37:48 -0600
> > > > Brian King wrote:
> > > >
> > > > > Resending as the first a
On 11/16/2017 04:57 PM, Michael Ellerman wrote:
> Brian King writes:
>
>> On 11/16/2017 01:33 PM, Jesse Brandeburg wrote:
>>> On Thu, 16 Nov 2017 09:37:48 -0600
>>> Brian King wrote:
>>>
Resending as the first attempt is not showing up in the list archive.
This patch converts seve
Meelis Roos a écrit :
Meelis Roos a écrit :
> > > For me, 4.13 worked and 4.14 hangs early during boot. Bisecting led to
> > > the following commit. I had STRICT_KERNEL_RWX enabled when I met the
> > > option. When I disabled STRICT_KERNEL_RWX, the same kernel
booted fine.
> >
> > Can you
When stop is executed with EC=ESL=0, it appears to execute like a
normal instruction (resuming from NIP when woken by interrupt). So all
the save/restore handling can be avoided completely. In particular NV
GPRs do not have to be saved, and MSR does not have to be switched
back to kernel MSR.
So m
When waking from a CPU idle instruction (e.g., nap or stop), the sync
for ordering the KVM secondary thread state can be avoided if there
wakeup is coming from a kernel context rather than KVM context.
This improves performance for ping-pong benchmark with the stop0 idle
state by 0.46% for 2 threa
Implement a new function to invoke stop, power9_offline_stop, which is
like power9_idle_stop but used by the cpu hotplug code.
Move KVM secondary state manipulation code to the offline case.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/processor.h | 1 +
arch/powerpc/kernel/idl
The recent KVM work clashed with a couple of my patches, so they were
reverted/dropped for this merge window.
I've made another attempt at them, hopefully done in a way that is
more compatible with KVM requirements and in a bit nicer way (POWER8
contex switching should speed up a bit too). I'm not
> Meelis Roos a écrit :
>
> > > > For me, 4.13 worked and 4.14 hangs early during boot. Bisecting led to
> > > > the following commit. I had STRICT_KERNEL_RWX enabled when I met the
> > > > option. When I disabled STRICT_KERNEL_RWX, the same kernel booted fine.
> > >
> > > Can you please check t
Parse the PVR to check if DAWR was disabled by firmware
for POWER9 DD2.0 and if so return in error from ptrace.
Based on initial code provided by Michael Neuling .
Suggested-by: Ananth N Mavinakayanahalli
Signed-off-by: Pedro Franco de Carvalho
---
arch/powerpc/include/asm/debug.h| 1 +
a
This patch fixes the dma_mapping_error call to use the correct dma_addr
which is inside the ibmvnic_vpd struct. Moreover, it fixes an uninitialized
warning regarding a local dma_addr variable which is not used anymore.
Fixes: 4e6759be28e4 ("ibmvnic: Feature implementation of VPD for the ibmvnic
d
On Fri, Nov 17, 2017 at 11:40 AM, Thomas Gleixner wrote:
> On Fri, 17 Nov 2017, Arnd Bergmann wrote:
>> On Fri, Nov 17, 2017 at 10:54 AM, Thomas Gleixner wrote:
>> > On Fri, 17 Nov 2017, Arnd Bergmann wrote:
>> >> On Fri, Nov 17, 2017 at 9:58 AM, Thomas Gleixner
>> >> wrote:
>> >>
>> >> No, sys
On Fri, 17 Nov 2017, Arnd Bergmann wrote:
> On Fri, Nov 17, 2017 at 10:54 AM, Thomas Gleixner wrote:
> > On Fri, 17 Nov 2017, Arnd Bergmann wrote:
> >> On Fri, Nov 17, 2017 at 9:58 AM, Thomas Gleixner
> >> wrote:
> >>
> >> No, syscall that existing 32-bit user space enters would be handled by
>
On Fri, Nov 17, 2017 at 10:54 AM, Thomas Gleixner wrote:
> On Fri, 17 Nov 2017, Arnd Bergmann wrote:
>> On Fri, Nov 17, 2017 at 9:58 AM, Thomas Gleixner wrote:
>>
>> No, syscall that existing 32-bit user space enters would be handled by
>> compat_sys_nanosleep() on both 32-bit and 64-bit kernels
As we're now using SPDX identifiers, on the several
RC keymap files I wrote, add the proper SPDX, identifying
the license I meant.
As we're now using the short license, it doesn't make sense to
keep the original license text.
Also, fix MODULE_LICENSE to identify GPL v2, as this is the
minimal lic
On Fri, 17 Nov 2017, Arnd Bergmann wrote:
> On Fri, Nov 17, 2017 at 9:58 AM, Thomas Gleixner wrote:
> > On Fri, 17 Nov 2017, Arnd Bergmann wrote:
> >> On Thu, Nov 16, 2017 at 10:04 AM, Thomas Gleixner
> >> wrote:
> >> > On Wed, 15 Nov 2017, Deepa Dinamani wrote:
> >> >> Would this work for every
On Fri, Nov 17, 2017 at 9:58 AM, Thomas Gleixner wrote:
> On Fri, 17 Nov 2017, Arnd Bergmann wrote:
>> On Thu, Nov 16, 2017 at 10:04 AM, Thomas Gleixner wrote:
>> > On Wed, 15 Nov 2017, Deepa Dinamani wrote:
>> >> Would this work for everyone?
>> >
>> > Having extra config switches which are sele
On Fri, 17 Nov 2017, Arnd Bergmann wrote:
> On Thu, Nov 16, 2017 at 10:04 AM, Thomas Gleixner wrote:
> > On Wed, 15 Nov 2017, Deepa Dinamani wrote:
> >> Would this work for everyone?
> >
> > Having extra config switches which are selectable by architectures and
> > removed when everything is conve
On Thursday 16 November 2017 11:15 PM, Josh Poimboeuf wrote:
On Thu, Nov 16, 2017 at 06:39:03PM +0530, Naveen N. Rao wrote:
Josh Poimboeuf wrote:
On Wed, Nov 15, 2017 at 02:58:33PM +0530, Naveen N. Rao wrote:
+int instr_is_link_branch(unsigned int instr)
+{
+ return (instr_is_branch_ifor
Meelis Roos a écrit :
> For me, 4.13 worked and 4.14 hangs early during boot. Bisecting led to
> the following commit. I had STRICT_KERNEL_RWX enabled when I met the
> option. When I disabled STRICT_KERNEL_RWX, the same kernel booted fine.
Can you please check that 4.13 boots properly with 'no
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