Le 18/10/2023 à 06:55, Aneesh Kumar K.V a écrit :
> With commit 9fee28baa601 ("powerpc: implement the new page table range
> API") we added set_ptes to powerpc architecture but the implementation
> missed calling the pte filter for all the ptes we are setting in the
> range. set_pte_filter can
Erhard Furtner writes:
> On Tue, 17 Oct 2023 14:40:49 +1100
> Michael Ellerman wrote:
>
>> I think I've reproduced the crash on my Quad G5 by using your config
>> with some things tweaked, but I don't get any output on the screen :/
>
> You could try PPC_EARLY_DEBUG=y with PPC_EARLY_DEBUG_BOOTX
With commit 9fee28baa601 ("powerpc: implement the new page table range
API") we added set_ptes to powerpc architecture but the implementation
missed calling the pte filter for all the ptes we are setting in the
range. set_pte_filter can be used for filter pte values and on some
platforms which
The VAS open window call prints error message and returns -EBUSY
after the migration suspend event initiated and until the resume
event completed on the destination system. It can cause the log
buffer filled with these error messages if the user space issues
continuous open window calls. Similar
The hypervisor returns migration failure if all VAS windows are not
closed. During pre-migration stage, vas_migration_handler() sets
migration_in_progress flag and closes all windows from the list.
The allocate VAS window routine checks the migration flag, setup
the window and then add it to the
On Tue, Oct 17, 2023 at 9:37 PM Hans Verkuil wrote:
>
> On 17/10/2023 15:11, Shengjiu Wang wrote:
> > On Mon, Oct 16, 2023 at 9:16 PM Hans Verkuil wrote:
> >>
> >> Hi Shengjiu,
> >>
> >> On 13/10/2023 10:31, Shengjiu Wang wrote:
> >>> Fixed point controls are used by the user to configure
> >>>
From: David Woodhouse
The xencons_connect_backend() function allocates a local interdomain
event channel with xenbus_alloc_evtchn(), then calls
bind_interdomain_evtchn_to_irq_lateeoi() to bind to that port# on the
*remote* domain.
That doesn't work very well:
(qemu) device_add
CCing linux-kernel for more exposure.
PING. I'm waiting on a reply from anyone on the kernel side of things
to see whether they have an issue with reserving values for AT_HWCAP3
and AT_HWCAP4.
I'll note reviews from the GLIBC camp did not have an issue with the below
patch.
Thanks.
Peter
On Tue, 17 Oct 2023 11:34:23 +0530
"Aneesh Kumar K.V" wrote:
> ie, we can do something like below. The change also make sure we call
> set_pte_filter on all the ptes we are setting via set_ptes(). I haven't
> sent this as a proper patch because we still are not able to fix the
> issue Erhard
On Tue, Oct 17, 2023 at 07:37:39PM +0900, Masahiro Yamada wrote:
> The '%.ko' rule in arch/*/Makefile.postlink does nothing but call the
> 'true' command.
>
> Remove the meaningless code.
>
> Signed-off-by: Masahiro Yamada
> ---
>
> arch/mips/Makefile.postlink| 3 ---
>
Hi Daniel
We have a usecase which requires this patch necessarily. For android
usecases, we have two different build variants
differentiated by defconfigs - production and debug. However, we only
have a single dts for both these variants.
We want to enable certain features like page owner
module_platform_driver_probe() has the advantage that the .probe() and
.remove() calls can live in .init.text and .exit.text respectively and
so some memory is saved. The downside is that dynamic bind and unbind
are impossible. As the driver doesn't benefit from the advantages (both
.probe and
Hello,
module_platform_driver_probe() is an alternative to
module_platform_driver(). Comparing the two the former has the advantage
that the probe and remove callbacks can live in .init.text and
.exit.text respectively. The latter has the advantage that it's a bit
easier to use correctly and you
On Mon, 9 Oct 2023 10:30:52 +0530, Athira Rajeev wrote:
> Simple expression parser test fails in powerpc as below:
>
> 4: Simple expression parser
> test child forked, pid 170385
> Using CPUID 004e2102
> division by zero
> syntax error
> syntax error
> FAILED
On Fri, 13 Oct 2023 13:00:18 +0530, Athira Rajeev wrote:
> shellcheck was run on perf tool shell scripts as a pre-requisite
> to include a build option for shellcheck discussed here:
> https://www.spinics.net/lists/linux-perf-users/msg25553.html
>
> And fixes were added for the coding/formatting
ls1043a add suspend/resume support.
Implement ls1043a_pcie_send_turnoff_msg() to send PME_Turn_Off message.
Implement ls1043a_pcie_exit_from_l2() to exit from L2 state.
Signed-off-by: Frank Li
---
Notes:
Change from v2 to v3
- Remove ls_pcie_lut_readl(writel) function
Change
'pf' and 'lut' is just difference name in difference chips, but basic it is
a MMIO base address plus an offset.
Rename it to avoid duplicate pf_* and lut_* in driver.
Signed-off-by: Frank Li
---
Notes:
change from v1 to v3
- new patch at v3
drivers/pci/controller/dwc/pci-layerscape.c
ls1021a add suspend/resume support.
Implement callback ls1021a_pcie_send_turnoff_msg(), which write scfg's
SCFG_PEXPMWRCR to issue PME_Turn_off message.
Implement ls1021a_pcie_exit_from_l2() to let controller exit L2 state.
Signed-off-by: Frank Li
---
Notes:
Change from v2 to v3
-
Since difference SoCs require different sequence for exiting L2, let's add
a separate "exit_from_l2()" callback. This callback can be used to execute
SoC specific sequence.
Signed-off-by: Frank Li
---
Notes:
Change from v2 to v3
- fixed according to mani's feedback
1. update
Add suspend/resume support for ls1043 and ls1021.
Change log see each patch
Frank Li (4):
PCI: layerscape: Add function pointer for exit_from_l2()
PCI: layerscape: Add suspend/resume for ls1021a
PCI: layerscape: Rename pf_* as pf_lut_*
PCI: layerscape: Add suspend/resume for ls1043a
> On 13-Oct-2023, at 2:49 AM, Dave Chinner wrote:
>
> On Thu, Oct 12, 2023 at 03:51:04PM +0530, Sachin Sant wrote:
>> While running xfstests on a IBM Power10 server having xfs file system with
>> 4k block size following crash was seen
>>
>> [ 1609.771548] run fstests xfs/238 at 2023-10-11
> On 17-Oct-2023, at 5:45 PM, Michael Ellerman wrote:
>
> Sachin reported a warning when running the inject-ra-err selftest:
>
> # selftests: powerpc/mce: inject-ra-err
> Disabling lock debugging due to kernel taint
> MCE: CPU19: machine check (Severe) Real address Load/Store
On Wed, 04 Oct 2023 15:19:54 -0500, gjo...@linux.vnet.ibm.com wrote:
> This patchset has gone through numerous rounds of review and
> all comments/suggetions have been addressed. The reviews have
> covered all relevant areas including reviews by block and keyring
> developers as well as the SED
On 10/17/23 9:09 AM, Greg Joyce wrote:
>
> Hi Jens,
>
> I've addressed all the comments/issues on v7 of the patchset and
> haven't received any feedback on v8. Is there anything else that you'd
> like to see before this can be included?
Let's give it another shot!
--
Jens Axboe
Hi Jens,
I've addressed all the comments/issues on v7 of the patchset and
haven't received any feedback on v8. Is there anything else that you'd
like to see before this can be included?
Thanks,
Greg
On Wed, 2023-10-04 at 15:19 -0500, gjo...@linux.vnet.ibm.com wrote:
> From: Greg Joyce
>
>
On Tue, Oct 17, 2023 at 04:10:42PM +0530, Pratyush Brahma wrote:
> For such a usecase, the CONFIG_CMDLINE_PREPEND seems to be quite useful as
> it would help to stitch bootloader
> and the desired build variant's configs together. Can you please help to
> merge this patch?
Yes, your at least the
> On 17-Oct-2023, at 4:35 PM, Lorenzo Stoakes wrote:
>
> On Tue, Oct 17, 2023 at 02:46:07PM +0530, Sachin Sant wrote:
>> While running LTP tests (getpid02) on a Power10 server booted with
>> 6.6.0-rc6-next-20231016 following crash was seen:
>>
>> [ 76.386628] Kernel attempted to read user
On 17/10/2023 15:11, Shengjiu Wang wrote:
> On Mon, Oct 16, 2023 at 9:16 PM Hans Verkuil wrote:
>>
>> Hi Shengjiu,
>>
>> On 13/10/2023 10:31, Shengjiu Wang wrote:
>>> Fixed point controls are used by the user to configure
>>> the audio sample rate to driver.
>>>
>>> Add V4L2_CID_ASRC_SOURCE_RATE
On Mon, Oct 16, 2023 at 9:16 PM Hans Verkuil wrote:
>
> Hi Shengjiu,
>
> On 13/10/2023 10:31, Shengjiu Wang wrote:
> > Fixed point controls are used by the user to configure
> > the audio sample rate to driver.
> >
> > Add V4L2_CID_ASRC_SOURCE_RATE and V4L2_CID_ASRC_DEST_RATE
> > new IDs for ASRC
On Mon, 2023-10-09 at 10:47 +0530, Srikar Dronamraju wrote:
Hi Srikar,
Benchmarked this patch on baremetal POWER9 node by launching KVM to
observe the improvements achieved in KVM with the patched kernel.
Below, you can find the schbench latency result comparision.
System was running on SMT4
Sachin reported a warning when running the inject-ra-err selftest:
# selftests: powerpc/mce: inject-ra-err
Disabling lock debugging due to kernel taint
MCE: CPU19: machine check (Severe) Real address Load/Store (foreign/control
memory) [Not recovered]
MCE: CPU19: PID: 5254 Comm:
On Tue, Oct 17, 2023 at 02:46:07PM +0530, Sachin Sant wrote:
> While running LTP tests (getpid02) on a Power10 server booted with
> 6.6.0-rc6-next-20231016 following crash was seen:
>
> [ 76.386628] Kernel attempted to read user page (d8) - exploit attempt?
> (uid: 0)
> [ 76.386649] BUG:
On 17/10/23 7:58 am, Pingfan Liu wrote:
*** Idea ***
For kexec -p, the boot cpu can be not the cpu0, this causes the problem
of allocating memory for paca_ptrs[]. However, in theory, there is no
requirement to assign cpu's logical id as its present sequence in the
device tree. But there is
The '%.ko' rule in arch/*/Makefile.postlink does nothing but call the
'true' command.
Remove the meaningless code.
Signed-off-by: Masahiro Yamada
---
arch/mips/Makefile.postlink| 3 ---
arch/powerpc/Makefile.postlink | 3 ---
arch/riscv/Makefile.postlink | 3 ---
On 17/10/23 7:58 am, Pingfan Liu wrote:
In order to identify the boot cpu, its intserv[] should be recorded and
checked in smp_setup_cpu_maps().
smp_setup_cpu_maps() is shared between PPC64 and PPC32. Since PPC64 has
already used boot_cpu_hwid to carry that information, enabling this
While running LTP tests (getpid02) on a Power10 server booted with
6.6.0-rc6-next-20231016 following crash was seen:
[ 76.386628] Kernel attempted to read user page (d8) - exploit attempt? (uid:
0)
[ 76.386649] BUG: Kernel NULL pointer dereference on read at 0x00d8
[ 76.386653]
On Mon, Oct 16, 2023 at 04:18:36PM -0400, Frank Li wrote:
> On Mon, Oct 16, 2023 at 10:28:24PM +0530, Manivannan Sadhasivam wrote:
> > On Fri, Sep 15, 2023 at 02:43:05PM -0400, Frank Li wrote:
> > > ls1021a add suspend/resume support.
> > >
> >
> > Please add what the driver is doing during
On 17/10/23 5:39 pm, Christophe Leroy wrote:
Le 16/10/2023 à 07:01, Benjamin Gray a écrit :
Currently patch_instruction() bases the write length on the value being
written. If the value looks like a prefixed instruction it writes 8 bytes,
otherwise it writes 4 bytes. This makes it potentially
Le 16/10/2023 à 07:01, Benjamin Gray a écrit :
> Currently patch_instruction() bases the write length on the value being
> written. If the value looks like a prefixed instruction it writes 8 bytes,
> otherwise it writes 4 bytes. This makes it potentially buggy to use for
> writing arbitrary
On 16/10/23 5:37 pm, Daniel Borkmann wrote:
On 10/12/23 10:03 PM, Hari Bathini wrote:
Most BPF programs are small, but they consume a page each. For systems
with busy traffic and many BPF programs, this may also add significant
pressure on instruction TLB. High iTLB pressure usually slows
Erhard Furtner writes:
> On Thu, 12 Oct 2023 20:54:13 +0100
> "Matthew Wilcox (Oracle)" wrote:
>
>> Dave Woodhouse reported that we now nest calls to
>> arch_enter_lazy_mmu_mode(). That was inadvertent, but in principle we
>> should allow it. On further investigation, Juergen already fixed it
41 matches
Mail list logo
