From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Marc Zyngier <maz@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
'Linux Samsung SOC' <linux-samsung-soc@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
John Garry <john.garry@huawei.com>,
Xiongfeng Wang <wangxiongfeng2@huawei.com>,
David Decotigny <ddecotig@google.com>
Subject: Re: [PATCH v3 2/3] genirq: Always limit the affinity to online CPUs
Date: Wed, 20 Apr 2022 11:42:36 +0200 [thread overview]
Message-ID: <1c3cb265-2497-537d-3c7b-ca4766775b46@linaro.org> (raw)
In-Reply-To: <87mtgg9jok.wl-maz@kernel.org>
On 20/04/2022 11:40, Marc Zyngier wrote:
> It was picked up by Thomas and pushed out into tip, which is pulled by
> -next:
>
> maz@hot-poop:~/arm-platforms$ git describe --contains c48c8b829d2b966a6649827426bcdba082ccf922
> next-20220420~51^2~3^2
>
> So it definitely is in today's -next.
>
>> Instead of silent fail there is now "Unable to handle kernel paging
>> request at virtual address f0836644", so it is slightly different.
>>
>> See the dmesg:
>> https://krzk.eu/#/builders/21/builds/3542/steps/15/logs/serial0
>
> This looks completely unrelated:
>
> [ 10.382010] Unable to handle kernel paging request at virtual address f0836644
> [ 10.388597] [f0836644] *pgd=41c83811, *pte=00000000, *ppte=00000000
> [ 10.394482] Internal error: Oops: 807 [#1] PREEMPT SMP ARM
> [ 10.399567] Modules linked in:
> [ 10.402583] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.18.0-rc3-next-20220420 #2
> [ 10.410060] Hardware name: Samsung Exynos (Flattened Device Tree)
> [ 10.416106] PC is at cpu_ca15_set_pte_ext+0x4c/0x58
> [ 10.420952] LR is at handle_pte_fault+0x218/0x260
> [ 10.425631] pc : [<c011d588>] lr : [<c02ab188>] psr: 40000113
> [ 10.431874] sp : f0835df0 ip : f0835e5c fp : 00000081
> [ 10.437069] r10: c0f2eafc r9 : c1d31000 r8 : 00000000
> [ 10.442268] r7 : c1d58000 r6 : 00000081 r5 : befffff6 r4 : f0835e24
> [ 10.448773] r3 : 00000000 r2 : 00000000 r1 : 00000040 r0 : f0835e44
> [ 10.455273] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> [ 10.462381] Control: 10c5387d Table: 4000406a DAC: 00000051
>
> This is a crash in cpu_ca15_set_pte_ext() when populating the
> userspace page tables, which seems unrelated to interrupt affinity.
>
> I suggest you bisect this to find the actual problem.
Thanks for checking.
Best regards,
Krzysztof
next prev parent reply other threads:[~2022-04-20 9:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-05 18:50 [PATCH v3 0/3] genirq: Managed affinity fixes Marc Zyngier
2022-04-05 18:50 ` [PATCH v3 1/3] genirq/msi: Shutdown managed interrupts with unsatifiable affinities Marc Zyngier
2022-04-10 19:13 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2022-04-05 18:50 ` [PATCH v3 2/3] genirq: Always limit the affinity to online CPUs Marc Zyngier
2022-04-10 19:12 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
[not found] ` <CGME20220413145922eucas1p2dc46908354f4d2b48db79978d086a838@eucas1p2.samsung.com>
2022-04-13 14:59 ` [PATCH v3 2/3] " Marek Szyprowski
2022-04-13 17:26 ` Marc Zyngier
2022-04-14 9:09 ` Marek Szyprowski
2022-04-14 10:35 ` Marc Zyngier
2022-04-14 11:08 ` Marek Szyprowski
2022-04-20 9:13 ` Krzysztof Kozlowski
2022-04-20 9:40 ` Marc Zyngier
2022-04-20 9:42 ` Krzysztof Kozlowski [this message]
2022-04-20 9:47 ` Marek Szyprowski
2022-04-20 9:50 ` Krzysztof Kozlowski
2022-04-14 10:49 ` Thomas Gleixner
2022-04-14 14:14 ` [tip: irq/core] genirq: Take the proposed affinity at face value if force==true tip-bot2 for Marc Zyngier
2022-04-05 18:50 ` [PATCH v3 3/3] irqchip/gic-v3: Always trust the managed affinity provided by the core code Marc Zyngier
2022-04-10 19:12 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2022-04-07 17:29 ` [PATCH v3 0/3] genirq: Managed affinity fixes John Garry
2022-04-08 1:02 ` Xiongfeng Wang
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