Le 22/02/2024 à 06:32, Michael Ellerman a écrit :
> Christophe Leroy writes:
>> __kernel_map_pages() is almost identical for PPC32 and RADIX.
>>
>> Refactor it.
>>
>> On PPC32 it is not needed for KFENCE, but to keep it simple
>> just make it similar to PPC64.
>>
>> Signed-off-by: Christophe Ler
On Wed, Feb 21, 2024 at 08:57:53AM -0400, Jason Gunthorpe wrote:
> On Wed, Feb 21, 2024 at 05:37:37PM +0800, Peter Xu wrote:
> > On Mon, Jan 15, 2024 at 01:55:51PM -0400, Jason Gunthorpe wrote:
> > > On Wed, Jan 03, 2024 at 05:14:13PM +0800, pet...@redhat.com wrote:
> > > > From: Peter Xu
> > > >
On 2/20/24 18:08, Michael Ellerman wrote:
> Kajol Jain writes:
>> Running event
>> hv_gpci/dispatch_timebase_by_processor_processor_time_in_timebase_cycles,phys_processor_idx=0/
>> in one of the system throws below error:
>>
>> ---Logs---
>> # perf list | grep
>> hv_gpci/dispatch_timebase_b
Hi Simon,
On Wed, Feb 21, 2024 at 5:57 PM Simon Horman wrote:
> Fix possible NULL pointer dereference in gelic_card_release_tx_chain()
>
> The cited commit introduced a netdev variable to
> gelic_card_release_tx_chain() which is set unconditionally on each
> iteration of a for loop.
>
> It is set
Hi, guys.
I have implemented a low-overhead method for detecting interrupt
storm in softlockup. Please review it, all comments are welcome.
Changes from v8 to v9:
- Patch #1 remains unchanged.
- From Thomas Gleixner, split patch #2 into two patches. Interrupt
infrastructure first and then the ac
The following softlockup is caused by interrupt storm, but it cannot be
identified from the call tree. Because the call tree is just a snapshot
and doesn't fully capture the behavior of the CPU during the soft lockup.
watchdog: BUG: soft lockup - CPU#28 stuck for 23s! [fio:83921]
...
Call tra
The current implementation uses an int for the kstat_irqs in the
interrupt descriptor.
However, we need to know the number of interrupts which happened
since softlockup detection took a snapshot in order to analyze
the problem caused by an interrupt storm.
Replacing an int with a struct and provi
When the watchdog determines that the current soft lockup is due
to an interrupt storm based on CPU utilization, reporting the
most frequent interrupts could be good enough for further
troubleshooting.
Below is an example of interrupt storm. The call tree does not
provide useful information, but w
Hi Andy,
On Mon, 12 Feb 2024 14:22:56 +0200
Andy Shevchenko wrote:
...
>
> > +#include
> > +#include
> > +#include
>
> > +#include
> > +#include
>
> I do not see how these are being used, am I right?
> What's is missing OTOH is the mod_devicetable.h.
Agree for removing of.h and of_
On Thu, Feb 22, 2024 at 01:05:16PM +0100, Herve Codina wrote:
> On Mon, 12 Feb 2024 14:22:56 +0200
> Andy Shevchenko wrote:
...
> > > +#include
> > > +#include
> > > +#include
> >
> > > +#include
> > > +#include
> >
> > I do not see how these are being used, am I right?
> > What's is
On Thu, 22 Feb 2024 15:19:11 +0200
Andy Shevchenko wrote:
> On Thu, Feb 22, 2024 at 01:05:16PM +0100, Herve Codina wrote:
> > On Mon, 12 Feb 2024 14:22:56 +0200
> > Andy Shevchenko wrote:
>
> ...
>
> > > > +#include
> > > > +#include
> > > > +#include
> > >
> > > > +#include
> > >
On Thu, Feb 22 2024 at 17:34, Bitao Hu wrote:
First of all the subsystem prefix is 'genirq:'. 'git log kernel/irq/'
gives you a pretty good hint. It's documented
Secondly the subject line does not match what this patch is about. It's
not about using a struct, it's about providing a snapshot m
The QMC HDLC driver provides support for HDLC using the QMC (QUICC
Multichannel Controller) to transfer the HDLC data.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
Acked-by: Jakub Kicinski
---
drivers/net/wan/Kconfig| 12 +
drivers/net/wan/Makefile | 1 +
drivers/
Hi,
This series introduces the QMC HDLC support.
Patches were previously sent as part of a full feature series and were
previously reviewed in that context:
"Add support for QMC HDLC, framer infrastructure and PEF2256 framer" [1]
In order to ease the merge, the full feature series has been split
After contributing the driver, add myself as the maintainer for the
Freescale QMC HDLC driver.
Signed-off-by: Herve Codina
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d1052fa6a69..15cd3a8e5866 100644
--- a/MAINTAINERS
+++ b/MAINTAIN
From: Andy Shevchenko
These helpers scatters or gathers a bitmap with the help of the mask
position bits parameter.
bitmap_scatter() does the following:
src: 01011010
||
+--+|
| ++
| |++|||
| ||
QMC channels support runtime timeslots changes but nothing is done at
the QMC HDLC driver to handle these changes.
Use existing IFACE ioctl in order to configure the timeslots to use.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
Acked-by: Jakub Kicinski
---
drivers/net/wan/fsl_qm
Add framer support in the fsl_qmc_hdlc driver in order to be able to
signal carrier changes to the network stack based on the framer status
Also use this framer to provide information related to the E1/T1 line
interface on IF_GET_IFACE and configure the line interface according to
IF_IFACE_{E1,T1}
Hi All,
There are no changes since the last post, just a re-send.
v2:
- patch 4: commit message reworded (Heiko)
- patch 5: vtime.h is removed from Kbuild scripts (PowerPC only) (Heiko)
v1:
Please find a small cleanup to vtime_task_switch() wiring.
I split it into smaller patches to allow sepa
There is no architecture-specific code or data left
that generic needs to know about.
Thus, avoid the inclusion of header.
Reviewed-by: Frederic Weisbecker
Acked-by: Nicholas Piggin
Signed-off-by: Alexander Gordeev
---
arch/powerpc/include/asm/Kbuild | 1 -
include/asm-generic/vtime.h |
Callback arch_vtime_task_switch() is only defined when
CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is selected. Yet, the
function prototype forward declaration is present for
CONFIG_VIRT_CPU_ACCOUNTING_GEN variant. Remove it.
Reviewed-by: Frederic Weisbecker
Reviewed-by: Nicholas Piggin
Signed-off-by: Ale
The generic vtime_task_switch() implementation gets built only
if __ARCH_HAS_VTIME_TASK_SWITCH is not defined, but requires an
architecture to implement arch_vtime_task_switch() callback at
the same time, which is confusing.
Further, arch_vtime_task_switch() is implemented for 32-bit PowerPC
archi
__ARCH_HAS_VTIME_TASK_SWITCH macro is not used anymore.
Reviewed-by: Frederic Weisbecker
Acked-by: Heiko Carstens
Acked-by: Nicholas Piggin
Signed-off-by: Alexander Gordeev
---
arch/s390/include/asm/vtime.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/s390/include/asm/vtime.h b/a
update_timer_sys() and update_timer_mcck() are inlines used for
CPU time accounting from the interrupt and machine-check handlers.
These routines are specific to s390 architecture, but included
via header implicitly. Avoid the extra loop and
include header directly.
Acked-by: Heiko Carstens
Sig
On Thu, Feb 22, 2024 at 03:22:14PM +0100, Herve Codina wrote:
> The QMC HDLC driver provides support for HDLC using the QMC (QUICC
> Multichannel Controller) to transfer the HDLC data.
...
> +struct qmc_hdlc {
> + struct device *dev;
> + struct qmc_chan *qmc_chan;
> + struct net_devic
On Thu, Feb 22, 2024 at 03:22:16PM +0100, Herve Codina wrote:
> From: Andy Shevchenko
>
> These helpers scatters or gathers a bitmap with the help of the mask
> position bits parameter.
>
> bitmap_scatter() does the following:
> src: 01011010
> ||
>+-
On Thu, Feb 22, 2024 at 05:39:27PM +0200, Andy Shevchenko wrote:
> On Thu, Feb 22, 2024 at 03:22:16PM +0100, Herve Codina wrote:
> > From: Andy Shevchenko
> > The original work was done by Andy Shevchenko.
>
> Mine SoB is enough for a credit, but thank you :-)
That said, you forgot to add your
On Thu, Feb 22, 2024 at 03:22:17PM +0100, Herve Codina wrote:
> QMC channels support runtime timeslots changes but nothing is done at
> the QMC HDLC driver to handle these changes.
>
> Use existing IFACE ioctl in order to configure the timeslots to use.
...
> +static int qmc_hdlc_xlate_slot_map(
On Thu, Feb 22, 2024 at 03:22:18PM +0100, Herve Codina wrote:
> Add framer support in the fsl_qmc_hdlc driver in order to be able to
> signal carrier changes to the network stack based on the framer status
> Also use this framer to provide information related to the E1/T1 line
> interface on IF_GET
On Thu, Feb 22, 2024 at 03:22:13PM +0100, Herve Codina wrote:
> Hi,
>
> This series introduces the QMC HDLC support.
>
> Patches were previously sent as part of a full feature series and were
> previously reviewed in that context:
> "Add support for QMC HDLC, framer infrastructure and PEF2256 fra
submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url:
https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/arch-Select-fbdev-helpers-with-CONFIG_VIDEO/20240222-001622
base: tip/x86/core
On Thu, 22 Feb 2024 17:29:05 +0200
Andy Shevchenko wrote:
> On Thu, Feb 22, 2024 at 03:22:14PM +0100, Herve Codina wrote:
> > The QMC HDLC driver provides support for HDLC using the QMC (QUICC
> > Multichannel Controller) to transfer the HDLC data.
>
> ...
>
> > +struct qmc_hdlc {
> > + str
Hi Andy, Yury,
On Thu, 22 Feb 2024 17:39:27 +0200
Andy Shevchenko wrote:
...
> > + * bitmap_scatter() for the bitmap scatter detailed operations).
>
> > + * Suppose scattered computed using bitmap_scatter(scattered, src, mask,
> > n).
> > + * The operation bitmap_gather(result, scattered, ma
On Thu, Feb 22, 2024 at 05:45:01PM +0100, Herve Codina wrote:
> On Thu, 22 Feb 2024 17:29:05 +0200
> Andy Shevchenko wrote:
> > On Thu, Feb 22, 2024 at 03:22:14PM +0100, Herve Codina wrote:
...
> > > + spin_lock_irqsave(&qmc_hdlc->tx_lock, flags);
> >
> > Why not using cleanup.h from day 1?
>
Andy, Jakub,
On Thu, 22 Feb 2024 18:56:26 +0200
Andy Shevchenko wrote:
> On Thu, Feb 22, 2024 at 05:45:01PM +0100, Herve Codina wrote:
> > On Thu, 22 Feb 2024 17:29:05 +0200
> > Andy Shevchenko wrote:
> > > On Thu, Feb 22, 2024 at 03:22:14PM +0100, Herve Codina wrote:
>
> ...
>
> > > > +
In accordance with the Generic EHCI/OHCI bindings the corresponding node
name is suppose to comply with the Generic USB HCD DT schema, which
requires the USB nodes to have the name acceptable by the regexp:
"^usb(@.*)?" . Make sure the "generic-ehci" and "generic-ohci"-compatible
nodes are correctl
As the subject states this series is an attempt to harmonize the xHCI,
EHCI, OHCI and DWC USB3 DT nodes with the DT schema introduced in the
framework of the patchset [1].
Firstly as Krzysztof suggested we've deprecated a support of DWC USB3
controllers with "synopsys,"-vendor prefix compatible st
The EDAC drivers locally maintaining a statically defined
memory-controllers counter don't care much about the MC index assigned as
long as it's unique so the EDAC core perceives it. Convert these drivers
to be using the generic MC index allocation procedure recently added to
the EDAC core.
Signed
On Thu, 22 Feb 2024 10:47:29 +0530 Hari Bathini wrote:
>
>
> On 22/02/24 2:27 am, Andrew Morton wrote:
> > On Wed, 21 Feb 2024 11:15:00 +0530 Hari Bathini
> > wrote:
> >
> >> On 04/02/24 8:56 am, Baoquan He wrote:
> > Hope Hari and Pingfan can help have a look, see if
> > it's doable
smp_call_function_single disables IRQs when executing the callback. To
prevent deadlocks, we must disable IRQs when taking cgr_lock elsewhere.
This is already done by qman_update_cgr and qman_delete_cgr; fix the
other lockers.
Fixes: 96f413f47677 ("soc/fsl/qbman: fix issue in qman_delete_cgr_safe(
cgr_lock may be locked with interrupts already disabled by
smp_call_function_single. As such, we must use a raw spinlock to avoid
problems on PREEMPT_RT kernels. Although this bug has existed for a
while, it was not apparent until commit ef2a8d5478b9 ("net: dpaa: Adjust
queue depth on rate change")
Alexander Gordeev writes:
> The generic vtime_task_switch() implementation gets built only
> if __ARCH_HAS_VTIME_TASK_SWITCH is not defined, but requires an
> architecture to implement arch_vtime_task_switch() callback at
> the same time, which is confusing.
>
> Further, arch_vtime_task_switch() i
On Thu, Feb 22, 2024 at 05:49:59PM +0100, Herve Codina wrote:
> Hi Andy, Yury,
>
> On Thu, 22 Feb 2024 17:39:27 +0200
> Andy Shevchenko wrote:
>
> ...
> > > + * bitmap_scatter() for the bitmap scatter detailed operations).
> >
> > > + * Suppose scattered computed using bitmap_scatter(scattere
AN_LOG_DUMP] = {
.name = "ibm,scan-log-dump",
---
base-commit: b22ea627225b53ec7ce25c19d6df9fa8217d1643
change-id: 20240222-rtas-fix-ibm-reset-pe-dma-window-745dd1824011
Best regards,
--
Nathan Lynch
Hi Thomas,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/x86/core]
[also build test ERROR on deller-parisc/for-next arnd-asm-generic/master
linus/master v6.8-rc5]
[cannot apply to next-20240222]
[If your patch is applied to the wrong git tree, kindly drop
Hi Thomas,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/x86/core]
[also build test ERROR on deller-parisc/for-next arnd-asm-generic/master
linus/master v6.8-rc5]
[cannot apply to next-20240222]
[If your patch is applied to the wrong git tree, kindly drop
On Wed, 2024-01-31 at 11:46 +, Christophe Leroy wrote:
> Hi,
>
> Got the following BUG while loading module test_bpf.ko
>
> No time to investigate for now.
>
> root@vgoip:~# insmod test_bpf.ko
> [ 263.409030]
> ==
> [ 263.416
Le 22/02/2024 à 18:07, Sean Anderson a écrit :
> [Vous ne recevez pas souvent de courriers de sean.ander...@linux.dev.
> Découvrez pourquoi ceci est important à
> https://aka.ms/LearnAboutSenderIdentification ]
>
> cgr_lock may be locked with interrupts already disabled by
> smp_call_function_
On 23/02/24 2:59 am, Andrew Morton wrote:
On Thu, 22 Feb 2024 10:47:29 +0530 Hari Bathini wrote:
On 22/02/24 2:27 am, Andrew Morton wrote:
On Wed, 21 Feb 2024 11:15:00 +0530 Hari Bathini wrote:
On 04/02/24 8:56 am, Baoquan He wrote:
Hope Hari and Pingfan can help have a look, see if
Hi Erhard, hi Charlie,
Le 23/02/2024 à 02:26, Erhard Furtner a écrit :
> Greetings!
>
> Looks like my Talos II (running a BE kernel+system) fails some of the kernels
> internal unit tests. One of the failing tests is checksum_kunit, enabled via
> CONFIG_CHECKSUM_KUNIT=y:
>
> [...]
> KTAP v
Nathan Lynch via B4 Relay
writes:
> From: Nathan Lynch
>
> The PAPR spec spells the function name as
>
> "ibm,reset-pe-dma-windows"
>
> but in practice firmware uses the singular form:
Just to be clear, you're talking about IBM firmware on PowerVM machines.
> "ibm,reset-pe-dma-window"
>
> i
Christophe Leroy writes:
> Le 22/02/2024 à 06:32, Michael Ellerman a écrit :
>> Christophe Leroy writes:
>>> __kernel_map_pages() is almost identical for PPC32 and RADIX.
>>>
>>> Refactor it.
>>>
>>> On PPC32 it is not needed for KFENCE, but to keep it simple
>>> just make it similar to PPC64.
>>
Le 23/02/2024 à 07:12, Charlie Jenkins a écrit :
> On Fri, Feb 23, 2024 at 05:59:07AM +, Christophe Leroy wrote:
>> Hi Erhard, hi Charlie,
>>
>> Le 23/02/2024 à 02:26, Erhard Furtner a écrit :
>>> Greetings!
>>>
>>> Looks like my Talos II (running a BE kernel+system) fails some of the
>>> ke
On 21/02/2024 04.27, Nicholas Piggin wrote:
Now that strange arm64 hang is found to be QEMU bug, I'll repost.
Since arm64 requires Thomas's uart patch and it is worse affected
by the QEMU bug, I will just not build it on arm. The QEMU bug
still affects powerpc (and presumably s390x) but it's not
Hi,
On 2024/2/22 21:22, Thomas Gleixner wrote:
On Thu, Feb 22 2024 at 17:34, Bitao Hu wrote:
First of all the subsystem prefix is 'genirq:'. 'git log kernel/irq/'
gives you a pretty good hint. It's documented
Secondly the subject line does not match what this patch is about. It's
not about
On Fri, Feb 23 2024 at 15:18, Bitao Hu wrote:
> On 2024/2/22 21:22, Thomas Gleixner wrote:
>>> - if (desc->kstat_irqs) {
>>> - for_each_online_cpu(j)
>>> - any_count |= data_race(*per_cpu_ptr(desc->kstat_irqs,
>>> j));
>>> - }
>>> + if (desc->kstat_irqs)
>>> +
Hello Hari,
Build failure detected.
On 13/02/24 17:01, Hari Bathini wrote:
Remove CONFIG_CRASH_DUMP dependency on CONFIG_KEXEC. CONFIG_KEXEC_CORE
was used at places where CONFIG_CRASH_DUMP or CONFIG_CRASH_RESERVE was
appropriate. Replace with appropriate #ifdefs to support CONFIG_KEXEC
and !CON
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