On Tue, Nov 28, 2023 at 04:55:11PM +0800, Abel Wu wrote:
> On 11/27/23 9:56 PM, Tobias Huschle Wrote:
> > On Wed, Nov 22, 2023 at 11:00:16AM +0100, Peter Zijlstra wrote:
> > > On Tue, Nov 21, 2023 at 02:17:21PM +0100, Tobias Huschle wrote:
[...]
> > - At depth 4, the cgroup shows the observed
From: "Steven Rostedt (Google)"
I was loading a very large trace.dat file into kernelshark when it just
stopped near the end off the load and hung there for a very long time. I
ran it under gdb and hit Ctrl^C when it hit the hang to see what it was
doing and found that it was spinning in:
From: "Steven Rostedt (Google)"
[ Upstream commit fc4561226feaad5fcdcb55646c348d77b8ee69c5 ]
The eventfs directory is dynamically created via the meta data supplied by
the existing trace events. All files and directories in eventfs has a
parent. Do not allow NULL to be passed into
On 28.11.23 18:55, David Hildenbrand wrote:
On 19.11.23 17:57, Alexandru Elisei wrote:
To enable tagging on a memory range, userspace can use mprotect() with the
PROT_MTE access flag. Pages already mapped in the VMA don't have the
associated tag storage block reserved, so mark the PTEs as
On 19.11.23 17:57, Alexandru Elisei wrote:
To enable tagging on a memory range, userspace can use mprotect() with the
PROT_MTE access flag. Pages already mapped in the VMA don't have the
associated tag storage block reserved, so mark the PTEs as
PAGE_FAULT_ON_ACCESS to trigger a fault next time
Hi,
On Tue, Nov 28, 2023 at 08:49:57AM +0200, Mike Rapoport wrote:
> On Mon, Nov 27, 2023 at 11:52:56AM +, Alexandru Elisei wrote:
> > Hi Mike,
> >
> > I really appreciate you having a look!
> >
> > On Sat, Nov 25, 2023 at 12:03:22PM +0200, Mike Rapoport wrote:
> > > On Sun, Nov 19, 2023 at
From: "Steven Rostedt (Google)"
A trace instance may only need to enable specific events. As the eventfs
directory of an instance currently creates all events which adds overhead,
allow internal instances to be created with just the events in systems
that they care about. This currently only
Hi,
On Tue, Nov 28, 2023 at 05:57:31PM +0100, David Hildenbrand wrote:
> On 27.11.23 13:09, Alexandru Elisei wrote:
> > Hi,
> >
> > Thank you so much for your comments, there are genuinely useful.
> >
> > On Fri, Nov 24, 2023 at 08:35:47PM +0100, David Hildenbrand wrote:
> > > On 19.11.23
On 19.11.23 17:57, Alexandru Elisei wrote:
On arm64, the zero page receives special treatment by having the tagged
flag set on MTE initialization, not when the page is mapped in a process
address space. Reserve the corresponding tag block when tag storage
management is being activated.
Out of
On 27.11.23 16:07, Alexandru Elisei wrote:
Hi,
On Fri, Nov 24, 2023 at 08:54:12PM +0100, David Hildenbrand wrote:
On 19.11.23 17:57, Alexandru Elisei wrote:
To be able to reserve the tag storage associated with a page requires that
the tag storage page can be migrated.
When HW KASAN is
On 27.11.23 16:01, Alexandru Elisei wrote:
Hi David,
On Fri, Nov 24, 2023 at 08:40:55PM +0100, David Hildenbrand wrote:
On 19.11.23 17:57, Alexandru Elisei wrote:
Add the MTE tag storage pages to the MIGRATE_CMA migratetype, which allows
the page allocator to manage them like regular pages.
On Wed, 29 Nov 2023 00:17:38 +0900
Masami Hiramatsu (Google) wrote:
> Hi Steve,
>
> On Mon, 27 Nov 2023 17:41:08 -0500
> Steven Rostedt wrote:
>
> > From: "Steven Rostedt (Google)"
> >
> > A trace instance may only need to enable specific events. As the eventfs
> > directory of an instance
Hi Steve,
On Mon, 27 Nov 2023 17:41:08 -0500
Steven Rostedt wrote:
> From: "Steven Rostedt (Google)"
>
> A trace instance may only need to enable specific events. As the eventfs
> directory of an instance currently creates all events which adds overhead,
> allow internal instances to be
On 11/27/23 18:41, Steven Rostedt wrote:
> On Mon, 27 Nov 2023 16:12:47 +0100
> Petr Pavlu wrote:
>
>> The following warning appears when using buffered events:
>> [ 203.556451] WARNING: CPU: 53 PID: 10220 at
>> kernel/trace/ring_buffer.c:3912 ring_buffer_discard_commit+0x2eb/0x420
>
> Hmm, I
On Tue, 28 Nov 2023 09:20:29 -0500
Steven Rostedt wrote:
> On Tue, 28 Nov 2023 14:14:29 +0100
> Dmytro Maluka wrote:
>
>
> > This limitation will cause (unrelated) events created by modules that
> > are insmoded after creating the instance to be also added to the
> > instance. Why not filter
On Tue, 28 Nov 2023 14:14:29 +0100
Dmytro Maluka wrote:
> This limitation will cause (unrelated) events created by modules that
> are insmoded after creating the instance to be also added to the
> instance. Why not filter those as well?
I did think of that. But that would be a separate patch.
On Mon, Nov 27, 2023 at 05:41:08PM -0500, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)"
>
> A trace instance may only need to enable specific events. As the eventfs
> directory of an instance currently creates all events which adds overhead,
> allow internal instances to be created
On Tue, 28 Nov 2023 11:53:19 +0100
Jiri Olsa wrote:
> On Mon, Nov 27, 2023 at 10:58:40PM +0900, Masami Hiramatsu (Google) wrote:
> > From: Masami Hiramatsu (Google)
> >
> > Rewrite fprobe implementation on function-graph tracer.
> > Major API changes are:
> > - 'nr_maxactive' field is
On Fri, 24 Nov 2023 at 10:21, Krzysztof Kozlowski
wrote:
>
> Use only one and exactly one space around '=' in DTS example.
>
> Signed-off-by: Krzysztof Kozlowski
Acked-by: Ulf Hansson # For MMC
Kind regards
Uffe
>
> ---
>
> Merging idea: Rob's DT.
> Should apply cleanly on Rob's for-next.
>
On Mon, Nov 27, 2023 at 10:58:40PM +0900, Masami Hiramatsu (Google) wrote:
> From: Masami Hiramatsu (Google)
>
> Rewrite fprobe implementation on function-graph tracer.
> Major API changes are:
> - 'nr_maxactive' field is deprecated.
> - This depends on CONFIG_DYNAMIC_FTRACE_WITH_ARGS or
>
On 11/27/23 9:56 PM, Tobias Huschle Wrote:
On Wed, Nov 22, 2023 at 11:00:16AM +0100, Peter Zijlstra wrote:
On Tue, Nov 21, 2023 at 02:17:21PM +0100, Tobias Huschle wrote:
The below should also work for internal entities, but last time I poked
around with it I had some regressions elsewhere --
On Mon, Nov 27, 2023 at 05:50:21PM -0500, Steven Rostedt wrote:
> On Mon, 27 Nov 2023 17:41:08 -0500
> Steven Rostedt wrote:
>
> > From: "Steven Rostedt (Google)"
> >
> > A trace instance may only need to enable specific events. As the eventfs
> > directory of an instance currently creates all
On Tue, Nov 28, 2023 at 08:05:26AM +, Greg KH wrote:
> On Mon, Nov 27, 2023 at 11:27:07AM -0800, Matthew Maurer wrote:
> > > > >
> > > > > > With regards to future directions that likely won't work for
> > > > > > loosening it:
> > > > > > Unfortunately, the .rmeta format itself is not
On Mon, Nov 27, 2023 at 11:27:07AM -0800, Matthew Maurer wrote:
> > > >
> > > > > With regards to future directions that likely won't work for
> > > > > loosening it:
> > > > > Unfortunately, the .rmeta format itself is not stable, so I wouldn't
> > > > > want to
> > > > > teach genksyms to open
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