On 01/07/2024 17:35, Johannes Berg wrote:
On Mon, 2024-07-01 at 17:56 +0200, Johannes Berg wrote:
Hmm. I also see a ton of this:
BUG: sleeping function called from invalid context at
kernel/locking/rwsem.c:1525
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 538, name: chan-switch.sh
pr
On 01/07/2024 20:09, Johannes Berg wrote:
On Mon, 2024-07-01 at 19:55 +0100, Anton Ivanov wrote:
As Benjamin pointed out we no longer need this, so we can junk this
patch at this point. If there will be any need to save/restore FPU in
kernel context, I will revisit it.
I think we still want/nee
On Mon, 2024-07-01 at 19:55 +0100, Anton Ivanov wrote:
> >
> As Benjamin pointed out we no longer need this, so we can junk this
> patch at this point. If there will be any need to save/restore FPU in
> kernel context, I will revisit it.
I think we still want/need the parts with the preempt_dis
On Mon, 2024-07-01 at 17:56 +0200, Johannes Berg wrote:
> Hmm. I also see a ton of this:
>
> BUG: sleeping function called from invalid context at
> kernel/locking/rwsem.c:1525
> in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 538, name:
> chan-switch.sh
> preempt_count: 2, expected: 0
>
Hmm. I also see a ton of this:
BUG: sleeping function called from invalid context at
kernel/locking/rwsem.c:1525
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 538, name: chan-switch.sh
preempt_count: 2, expected: 0
RCU nest depth: 0, expected: 0
no locks held by chan-switch.sh/538.
irq e
> arch/um/Kconfig | 2 +-
> arch/um/include/asm/fpu/api.h | 9 ++--
> arch/um/include/asm/thread_info.h | 4 +-
> arch/um/kernel/Makefile | 4 ++
> arch/um/kernel/fpu.c | 71 +++
> arch/um/kernel/irq.c | 2
Hi,
On Sat, 2024-04-20 at 13:22 +0100, Anton Ivanov wrote:
> On 19/04/2024 14:47, Benjamin Berg wrote:
> > Hi,
> >
> > On Wed, 2024-04-03 at 07:27 +0100, anton.iva...@cambridgegreys.com
> > wrote:
> > > From: Anton Ivanov
> > >
> > > 1. Preemption requires saving/restoring FPU state. This patch
On 19/04/2024 14:47, Benjamin Berg wrote:
Hi,
On Wed, 2024-04-03 at 07:27 +0100, anton.iva...@cambridgegreys.com
wrote:
From: Anton Ivanov
1. Preemption requires saving/restoring FPU state. This patch
adds support for it using GCC intrinsics as well as appropriate
storage space in the thread
Hi,
On Wed, 2024-04-03 at 07:27 +0100, anton.iva...@cambridgegreys.com
wrote:
> From: Anton Ivanov
>
> 1. Preemption requires saving/restoring FPU state. This patch
> adds support for it using GCC intrinsics as well as appropriate
> storage space in the thread structure. We reuse the space
> whi
From: Anton Ivanov
1. Preemption requires saving/restoring FPU state. This patch
adds support for it using GCC intrinsics as well as appropriate
storage space in the thread structure. We reuse the space
which is already allocated for the userspace threads in the
thread_info structure.
2. irq cri
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