On Wed, 25 Jan 2023 00:37:05 +0800 kernel test robot wrote:
> tree/branch:
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> branch HEAD: a54df7622717a40ddec95fd98086aff8ba7839a6 Add linux-next
> specific files for 20230124
>
> Error/Warning: (r
On Tue, Jan 24, 2023 at 05:30:29PM +, Mark Rutland wrote:
> On Tue, Jan 24, 2023 at 04:34:23PM +, Mark Rutland wrote:
> > Hi Peter,
> >
> > On Mon, Jan 23, 2023 at 09:50:09PM +0100, Peter Zijlstra wrote:
> > > 0-day robot reported graph-tracing made the cpuidle-vs-rcu rework go
> > > spla
On Tue, Jan 24, 2023 at 04:34:23PM +, Mark Rutland wrote:
> Hi Peter,
>
> On Mon, Jan 23, 2023 at 09:50:09PM +0100, Peter Zijlstra wrote:
> > 0-day robot reported graph-tracing made the cpuidle-vs-rcu rework go splat.
>
> Do you have a link toe the splat somewhere?
>
> I'm assuming that this
On Tue, Jan 24, 2023 at 03:44:35PM +0100, Peter Zijlstra wrote:
> On Mon, Jan 23, 2023 at 05:07:53PM -0500, Steven Rostedt wrote:
>
> > Actually, perhaps we can just add this, and all you need to do is create
> > and set CONFIG_NO_RCU_TRACING (or some other name).
>
> Elsewhere I've used CONFIG_A
tree/branch:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
branch HEAD: a54df7622717a40ddec95fd98086aff8ba7839a6 Add linux-next specific
files for 20230124
Error/Warning: (recently discovered and may have been fixed)
ERROR: modpost: "devm_platform_ioremap_res
Hi Peter,
On Mon, Jan 23, 2023 at 09:50:09PM +0100, Peter Zijlstra wrote:
> 0-day robot reported graph-tracing made the cpuidle-vs-rcu rework go splat.
Do you have a link toe the splat somewhere?
I'm assuming that this is partially generic, and I'd like to make sure I test
the right thing on arm
On 24.01.23 00:04, Sudarshan Rajagopalan wrote:
[...]
One problematic thing is that adding memory to Linux by virtio-mem
eventually consumes memory (e.g., the memmap), especially when having
to to add a completely new memory block to Linux.
Yes we have thought about this issue as well where-in
On Mon, Jan 23, 2023 at 05:07:53PM -0500, Steven Rostedt wrote:
> Actually, perhaps we can just add this, and all you need to do is create
> and set CONFIG_NO_RCU_TRACING (or some other name).
Elsewhere I've used CONFIG_ARCH_WANTS_NO_INSTR for this.
Anyway, I took it for a spin and it doesn
On Mon, Jan 23, 2023 at 9:58 PM Peter Zijlstra wrote:
>
> The instrumentation_begin()/end() annotations in poll_idle() were
> complete nonsense. Specifically they caused tracing to happen in the
> middle of noinstr code, resulting in RCU splats.
>
> Now that local_clock() is noinstr, mark up the r
On Fri 2023-01-20 16:12:22, Seth Forshee (DigitalOcean) wrote:
> Livepatch relies on stack checking of sleeping tasks to switch kthreads,
> so a busy kthread can block a livepatch transition indefinitely. We've
> seen this happen fairly often with busy vhost kthreads.
To be precise, it would be "i
On 1/24/23 11:15, Michael S. Tsirkin wrote:
On Mon, Jan 23, 2023 at 01:00:22PM +0100, Laurent Vivier wrote:
In virtnet_probe(), if the device doesn't provide a MAC address the
driver assigns a random one.
As we modify the MAC address we need to notify the device to allow it
to update all the rel
On Mon, Jan 23, 2023 at 01:00:22PM +0100, Laurent Vivier wrote:
> In virtnet_probe(), if the device doesn't provide a MAC address the
> driver assigns a random one.
> As we modify the MAC address we need to notify the device to allow it
> to update all the related information.
>
> The problem can
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