Recent changes made uprobe_cpu_buffer preparation lazy, and moved it
deeper into __uprobe_trace_func(). This is problematic because
__uprobe_trace_func() is called inside rcu_read_lock()/rcu_read_unlock()
block, which then calls prepare_uprobe_buffer() -> uprobe_buffer_get() ->
mutex_lock(>mutex),
The following changes since commit 4cece764965020c22cff7665b18a012006359095:
Linux 6.9-rc1 (2024-03-24 14:10:05 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git
tags/rproc-v6.10
for you to fetch changes up to
The following changes since commit 4cece764965020c22cff7665b18a012006359095:
Linux 6.9-rc1 (2024-03-24 14:10:05 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git
tags/rpmsg-v6.10
for you to fetch changes up to
Percpu struct kvm_steal_time is added here, its size is 64 bytes and
also defined as 64 bytes, so that the whole structure is in one physical
page.
When vcpu is onlined, function pv_enable_steal_time() is called. This
function will pass guest physical address of struct kvm_steal_time and
tells
Para-virt feature steal time is added in both kvm and guest kernel side.
It is silimar with other architectures, steal time structure comes from
guest memory, also pseduo register is used to save/restore base address
of steal time structure, so that vm migration is supported also.
---
v2 ... v3:
Steal time feature is added here in kvm side, VM can search supported
features provided by KVM hypervisor, feature KVM_FEATURE_STEAL_TIME
is added here. Like x86, steal time structure is saved in guest memory,
one hypercall function KVM_HCALL_FUNC_NOTIFY is added to notify KVM to
enable the
Hi Yuanchu,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.9 next-20240520]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented
On Mon, May 20, 2024 at 11:21 PM Steve Sistare
wrote:
>
> Flush to guarantee no workers are running when suspend returns.
> Add a lock to enforce ordering between clearing running, flushing,
> and posting new work in vdpasim_kick_vq. It must be a spin lock
> because vdpasim_kick_vq may be
On Mon, May 20, 2024 at 11:21 PM Steve Sistare
wrote:
>
> Support the suspend operation. There is little to do, except flush to
> guarantee no workers are running when suspend returns.
>
> Signed-off-by: Steve Sistare
> ---
> drivers/vdpa/vdpa_user/vduse_dev.c | 24
>
On Mon, May 20, 2024 at 11:21 PM Steve Sistare
wrote:
>
> Flush to guarantee no workers are running when suspend returns.
>
> Fixes: f345a0143b4d ("vhost-vdpa: uAPI to suspend the device")
> Signed-off-by: Steve Sistare
> Acked-by: Eugenio Pérez
> ---
> drivers/vhost/vdpa.c | 3 +++
> 1 file
On Mon, 2024-05-20 at 00:18 +0200, Jiri Olsa wrote:
> anyway I think we can fix that in another way by using the optimized
> trampoline,
> but returning to the user space through iret when shadow stack is detected
> (as I did in the first version, before you adjusted it to the sysret path).
>
>
On Mon, May 20, 2024 at 8:20 AM Jiri Olsa wrote:
>
> On Wed, May 15, 2024 at 08:32:30AM -0600, Andrii Nakryiko wrote:
> > On Wed, May 15, 2024 at 3:30 AM Peter Zijlstra wrote:
> > >
> > > On Wed, May 08, 2024 at 02:26:03PM -0700, Andrii Nakryiko wrote:
> > >
> > > > +static void
On Fri, May 17, 2024 at 1:31 PM Kris Van Hees wrote:
>
> The offset range data for builtin modules is generated using:
> - modules.builtin.modinfo: associates object files with module names
> - vmlinux.map: provides load order of sections and offset of first member
> per section
> -
Flush to guarantee no workers are running when suspend returns.
Add a lock to enforce ordering between clearing running, flushing,
and posting new work in vdpasim_kick_vq. It must be a spin lock
because vdpasim_kick_vq may be reached va eventfd_write.
Signed-off-by: Steve Sistare
---
Support the suspend operation. There is little to do, except flush to
guarantee no workers are running when suspend returns.
Signed-off-by: Steve Sistare
---
drivers/vdpa/vdpa_user/vduse_dev.c | 24
1 file changed, 24 insertions(+)
diff --git
Flush to guarantee no workers are running when suspend returns,
for vdpa, vdpa_sim, and vduse. (mlx5 already does so, via the path
mlx5_vdpa_suspend -> unregister_link_notifier -> flush_workqueue.)
Changes in V2:
- renamed "vduse: suspend" (was vduse: flush workers on suspend)
- call
Flush to guarantee no workers are running when suspend returns.
Fixes: f345a0143b4d ("vhost-vdpa: uAPI to suspend the device")
Signed-off-by: Steve Sistare
Acked-by: Eugenio Pérez
---
drivers/vhost/vdpa.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/vhost/vdpa.c
On Wed, May 08, 2024 at 02:26:04PM -0700, Andrii Nakryiko wrote:
> When tracing user functions with uprobe functionality, it's common to
> install the probe (e.g., a BPF program) at the first instruction of the
> function. This is often going to be `push %rbp` instruction in function
> preamble,
On Wed, May 15, 2024 at 08:32:30AM -0600, Andrii Nakryiko wrote:
> On Wed, May 15, 2024 at 3:30 AM Peter Zijlstra wrote:
> >
> > On Wed, May 08, 2024 at 02:26:03PM -0700, Andrii Nakryiko wrote:
> >
> > > +static void fixup_uretprobe_trampoline_entries(struct
> > > perf_callchain_entry *entry,
>
On Sat, 18 May 2024 at 04:44, Christophe JAILLET
wrote:
>
> Le 30/04/2024 à 12:53, Beleswar Padhi a écrit :
> > PSC controller has a limitation that it can only power-up the second
> > core when the first core is in ON state. Power-state for core0 should be
> > equal to or higher than core1.
> >
On Montag, 20. Mai 2024 08:46:39 MESZ Krzysztof Kozlowski wrote:
> On 15/05/2024 17:06, Luca Weiss wrote:
> > Hi Rob,
> >
> > Any feedback on the below topic?
>
> Can be explained in description, like
> mboxes:
> description: Each entry corresponds to one remote processor
> maxItems: 5
Hi
On 5/17/2024 10:26 PM, Arnaud Pouliquen wrote:
Add missing @ tags for some rpmsg_eptdev structure parameters.
This fixes warning messages on build:
drivers/rpmsg/rpmsg_char.c:75: warning: Function parameter or struct member
'remote_flow_restricted' not described in 'rpmsg_eptdev'
On 5/20/2024 4:57 PM, AngeloGioacchino Del Regno wrote:
In scp_ipi_handler(), instead of zeroing out the entire shared
buffer, which may be as large as 600 bytes, overwrite it with the
received data, then zero out only the remaining bytes.
Signed-off-by: AngeloGioacchino Del Regno
---
On Mon, May 20, 2024 at 10:31:53AM -0400, Steven Rostedt wrote:
> On Mon, 20 May 2024 15:02:26 +0800
> "Ubisectech Sirius" wrote:
>
> > Hello.
> > We are Ubisectech Sirius Team, the vulnerability lab of China ValiantSec.
> > Recently, our team has discovered a issue in Linux kernel 6.7.
On Mon, 20 May 2024 15:02:26 +0800
"Ubisectech Sirius" wrote:
> Hello.
> We are Ubisectech Sirius Team, the vulnerability lab of China ValiantSec.
> Recently, our team has discovered a issue in Linux kernel 6.7. Attached to
> the email were a PoC file of the issue.
>
> Stack dump:
> UBSAN:
On Fri, 17 May 2024 15:40:08 +0200
Petr Pavlu wrote:
> The reader code in rb_get_reader_page() swaps a new reader page into the
> ring buffer by doing cmpxchg on old->list.prev->next to point it to the
> new page. Following that, if the operation is successful,
> old->list.next->prev gets
In scp_ipi_handler(), instead of zeroing out the entire shared
buffer, which may be as large as 600 bytes, overwrite it with the
received data, then zero out only the remaining bytes.
Signed-off-by: AngeloGioacchino Del Regno
---
drivers/remoteproc/mtk_scp.c | 2 +-
1 file changed, 1
The only key that should wake up the phone is power button press. This
prevents accidental wakeup due to e.g. pressing the buttons in the
pocket or backpack and is in line what userspace uses to unblank the
device.
Signed-off-by: Guido Günther
---
On Fri, May 17, 2024 at 1:30 PM Kris Van Hees wrote:
>
> The CONFIG_BUILTIN_MODULE_RANGES option controls whether offset range data
> is generated for kernel modules that are built into the kernel image.
>
> Signed-off-by: Kris Van Hees
> Reviewed-by: Nick Alcock
> Reviewed-by: Alan Maguire
>
OK, I will try to optimize my description after the patch is reviewed. I am
sure there are something still need to be fix for that patch.
> On May 20, 2024, at 16:00, Markus Elfring wrote:
>
> Please add a version identifier to the message subject.
>
>
> …
>> If the patched function have
On Fri, May 17, 2024 at 1:30 PM Kris Van Hees wrote:
>
> The CONFIG_BUILTIN_MODULE_RANGES option controls whether offset range data
> is generated for kernel modules that are built into the kernel image.
>
> Signed-off-by: Kris Van Hees
> Reviewed-by: Nick Alcock
> Reviewed-by: Alan Maguire
>
On Fri, May 17, 2024 at 1:32 PM Kris Van Hees wrote:
>
> When CONFIG_BUILTIN_MODULE_RANGES is enabled, the modules.builtin.ranges
> file should be installed in the module install location.
>
> Signed-off-by: Kris Van Hees
> Reviewed-by: Nick Alcock
> ---
> Changes since v2:
> - Include
Please add a version identifier to the message subject.
…
> If the patched function have bug, it may cause serious result
> such as kernel crash.
Wording suggestion:
If the patched function has a bug, it might cause serious side effects
like a kernel crash.
> This is a kobject
> On May 20, 2024, at 14:46, Miroslav Benes wrote:
>
> Hi,
>
> On Mon, 20 May 2024, Wardenjohn wrote:
>
>> Livepatch module usually used to modify kernel functions.
>> If the patched function have bug, it may cause serious result
>> such as kernel crash.
>>
>> This is a kobject attribute
On 15/05/2024 17:06, Luca Weiss wrote:
> Hi Rob,
>
> Any feedback on the below topic?
Can be explained in description, like
mboxes:
description: Each entry corresponds to one remote processor
maxItems: 5
Best regards,
Krzysztof
Hi,
On Mon, 20 May 2024, Wardenjohn wrote:
> Livepatch module usually used to modify kernel functions.
> If the patched function have bug, it may cause serious result
> such as kernel crash.
>
> This is a kobject attribute of klp_func. Sysfs interface named
> "called" is introduced to
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