Re: [PATCH -next v7 0/7] arm64: entry: Convert to generic irq entry

[Ada Couprie Diaz <ada.coupriediaz@arm.com>]

On 06/08/2025 09:11, Jinjie Ruan wrote:

> On 2025/8/5 23:08, Ada Couprie Diaz wrote:
>> Hi Jinjie,
>>
>> On 29/07/2025 02:54, Jinjie Ruan wrote:
>>
>>> Since commit a70e9f647f50 ("entry: Split generic entry into generic
>>> exception and syscall entry") split the generic entry into generic irq
>>> entry and generic syscall entry, it is time to convert arm64 to use
>>> the generic irq entry. And ARM64 will be completely converted to generic
>>> entry in the upcoming patch series.
>> Note : I had to manually cherry-pick a70e9f647f50 when pulling the series
>> on top of the Linux Arm Kernel for-next/core branch, but there might be
>> something I'm missing here.
> It seems that it is now in mainline v6.16-rc1 and linux-next but not
> Linux Arm Kernel for-next/core branch.
You're right, I misinterpreted the `-next` of the subject, thanks for the
clarification !
>> I'll spend some time testing the series now, specifically given patch 6's
>> changes, but other than that everything I saw made sense and didn't look
>> like it would be of concern to me.
> Thank you for the test and review.

I've spent some time testing the series with a few different configurations,
including PREEMPT_RT, pNMI, various lockup and hang detection options,
UBSAN, shadow call stack, and various CONFIG_DEBUG_XYZ (focused on locks
and IRQs), on both hardware (AMD Seattle) and KVM guests.

I tried to generate a diverse set of interrupts (via debug exceptions,
page faults, perf, kprobes, swapping, OoM) while loading the system with
different workloads, some generating a lot of context switches : hackbench
and signaltest from rt-tests[0], and mc-crusher[1], a memcached stress-test.

I did not have any issues, nor any warning reported by the various
debug features during all my hours of testing, so it looks good !

Tested-by: Ada Couprie Diaz <ada.coupriediaz@arm.com>

Thank you for the series !
Ada

[0]: https://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git/
[1]: https://github.com/memcached/mc-crusher