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
