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Date:   Mon, 29 May 2023 09:04:04 +0700
From:   Bagas Sanjaya <bagasdotme@gmail.com>
To:     Chris Packham <Chris.Packham@alliedtelesis.co.nz>,
        Lino Sanfilippo <l.sanfilippo@kunbus.com>,
        Jarkko Sakkinen <jarkko@kernel.org>,
        Sasha Levin <sashal@kernel.org>,
        Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>
Cc:     Linux Kernel Integrity <linux-integrity@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Regressions <regressions@lists.linux.dev>
Subject: Re: New kernel warning after updating from LTS 5.15.110 to 5.15.112
 (and 5.15.113)
Message-ID: <ZHQIFLWvrWUNMVxb@debian.me>
References: <fe6f7aa0-56c2-3729-ce8c-0f2d943b33f4@alliedtelesis.co.nz>
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On Sun, May 28, 2023 at 11:42:50PM +0000, Chris Packham wrote:
> Hi,
>=20
> We have an embedded product with an Infineon SLM9670 TPM. After updating=
=20
> to a newer LTS kernel version we started seeing the following warning at=
=20
> boot.
>=20
> [=C2=A0=C2=A0=C2=A0 4.741025] ------------[ cut here ]------------
> [=C2=A0=C2=A0=C2=A0 4.749894] irq 38 handler tis_int_handler+0x0/0x154 en=
abled interrupts
> [=C2=A0=C2=A0=C2=A0 4.756555] WARNING: CPU: 0 PID: 0 at kernel/irq/handle=
=2Ec:159=20
> __handle_irq_event_percpu+0xf4/0x180
> [=C2=A0=C2=A0=C2=A0 4.765557] Modules linked in:
> [=C2=A0=C2=A0=C2=A0 4.768626] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5=
=2E15.113 #1
> [=C2=A0=C2=A0=C2=A0 4.774747] Hardware name: Allied Telesis x250-18XS (DT)
> [=C2=A0=C2=A0=C2=A0 4.780080] pstate: 60000005 (nZCv daif -PAN -UAO -TCO =
-DIT -SSBS=20
> BTYPE=3D--)
> [=C2=A0=C2=A0=C2=A0 4.787072] pc : __handle_irq_event_percpu+0xf4/0x180
> [=C2=A0=C2=A0=C2=A0 4.792146] lr : __handle_irq_event_percpu+0xf4/0x180
> [=C2=A0=C2=A0=C2=A0 4.797220] sp : ffff800008003e40
> [=C2=A0=C2=A0=C2=A0 4.800547] x29: ffff800008003e40 x28: ffff8000093951c0=
 x27:=20
> ffff80000902a9b8
> [=C2=A0=C2=A0=C2=A0 4.807716] x26: ffff800008fe8d28 x25: ffff8000094a62bd=
 x24:=20
> ffff000001b92400
> [=C2=A0=C2=A0=C2=A0 4.814885] x23: 0000000000000026 x22: ffff800008003ec4=
 x21:=20
> 0000000000000000
> [=C2=A0=C2=A0=C2=A0 4.822053] x20: 0000000000000001 x19: ffff000002381200=
 x18:=20
> ffffffffffffffff
> [=C2=A0=C2=A0=C2=A0 4.829222] x17: ffff800076962000 x16: ffff800008000000=
 x15:=20
> ffff800088003b57
> [=C2=A0=C2=A0=C2=A0 4.836390] x14: 0000000000000000 x13: ffff8000093a5078=
 x12:=20
> 000000000000035d
> [=C2=A0=C2=A0=C2=A0 4.843558] x11: 000000000000011f x10: ffff8000093a5078=
 x9 :=20
> ffff8000093a5078
> [=C2=A0=C2=A0=C2=A0 4.850727] x8 : 00000000ffffefff x7 : ffff8000093fd078=
 x6 :=20
> ffff8000093fd078
> [=C2=A0=C2=A0=C2=A0 4.857895] x5 : 000000000000bff4 x4 : 0000000000000000=
 x3 :=20
> 0000000000000000
> [=C2=A0=C2=A0=C2=A0 4.865062] x2 : 0000000000000000 x1 : 0000000000000000=
 x0 :=20
> ffff8000093951c0
> [=C2=A0=C2=A0=C2=A0 4.872230] Call trace:
> [=C2=A0=C2=A0=C2=A0 4.874686]=C2=A0 __handle_irq_event_percpu+0xf4/0x180
> [=C2=A0=C2=A0=C2=A0 4.879411]=C2=A0 handle_irq_event+0x64/0xec
> [=C2=A0=C2=A0=C2=A0 4.883264]=C2=A0 handle_level_irq+0xc0/0x1b0
> [=C2=A0=C2=A0=C2=A0 4.887202]=C2=A0 generic_handle_irq+0x30/0x50
> [=C2=A0=C2=A0=C2=A0 4.891229]=C2=A0 mvebu_gpio_irq_handler+0x11c/0x2a0
> [=C2=A0=C2=A0=C2=A0 4.895780]=C2=A0 handle_domain_irq+0x60/0x90
> [=C2=A0=C2=A0=C2=A0 4.899720]=C2=A0 gic_handle_irq+0x4c/0xd0
> [=C2=A0=C2=A0=C2=A0 4.903398]=C2=A0 call_on_irq_stack+0x20/0x4c
> [=C2=A0=C2=A0=C2=A0 4.907338]=C2=A0 do_interrupt_handler+0x54/0x60
> [=C2=A0=C2=A0=C2=A0 4.911538]=C2=A0 el1_interrupt+0x30/0x80
> [=C2=A0=C2=A0=C2=A0 4.915130]=C2=A0 el1h_64_irq_handler+0x18/0x24
> [=C2=A0=C2=A0=C2=A0 4.919244]=C2=A0 el1h_64_irq+0x78/0x7c
> [=C2=A0=C2=A0=C2=A0 4.922659]=C2=A0 arch_cpu_idle+0x18/0x2c
> [=C2=A0=C2=A0=C2=A0 4.926249]=C2=A0 do_idle+0xc4/0x150
> [=C2=A0=C2=A0=C2=A0 4.929404]=C2=A0 cpu_startup_entry+0x28/0x60
> [=C2=A0=C2=A0=C2=A0 4.933343]=C2=A0 rest_init+0xe4/0xf4
> [=C2=A0=C2=A0=C2=A0 4.936584]=C2=A0 arch_call_rest_init+0x10/0x1c
> [=C2=A0=C2=A0=C2=A0 4.940699]=C2=A0 start_kernel+0x600/0x640
> [=C2=A0=C2=A0=C2=A0 4.944375]=C2=A0 __primary_switched+0xbc/0xc4
> [=C2=A0=C2=A0=C2=A0 4.948402] ---[ end trace 940193047b35b311 ]---
>=20
> Initially I dismissed this as a warning that would probably be cleaned=20
> up when we did more work on the TPM support for our product but we also=
=20
> seem to be getting some new i2c issues and possibly a kernel stack=20
> corruption that we've conflated with this TPM warning.

Can you reproduce this issue on mainline? Can you also bisect to find
the culprit?

Anyway, I'm adding it to regzbot:

#regzbot ^introduced: v5.15.110..v5.15.112
#regzbot title: Possible stack corruption and i2c issues due to irq warning=
 on Inifineon SLM9670 TPM

Thanks.

--=20
An old man doll... just what I always wanted! - Clara

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