Re: New kernel warning after updating from LTS 5.15.110 to 5.15.112 (and 5.15.113)

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On 29/05/23 14:04, Bagas Sanjaya wrote:
> On Sun, May 28, 2023 at 11:42:50PM +0000, Chris Packham wrote:
>> Hi,
>>
>> We have an embedded product with an Infineon SLM9670 TPM. After updating
>> to a newer LTS kernel version we started seeing the following warning at
>> boot.
>>
>> [    4.741025] ------------[ cut here ]------------
>> [    4.749894] irq 38 handler tis_int_handler+0x0/0x154 enabled interrupts
>> [    4.756555] WARNING: CPU: 0 PID: 0 at kernel/irq/handle.c:159
>> __handle_irq_event_percpu+0xf4/0x180
>> [    4.765557] Modules linked in:
>> [    4.768626] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.113 #1
>> [    4.774747] Hardware name: Allied Telesis x250-18XS (DT)
>> [    4.780080] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS
>> BTYPE=--)
>> [    4.787072] pc : __handle_irq_event_percpu+0xf4/0x180
>> [    4.792146] lr : __handle_irq_event_percpu+0xf4/0x180
>> [    4.797220] sp : ffff800008003e40
>> [    4.800547] x29: ffff800008003e40 x28: ffff8000093951c0 x27:
>> ffff80000902a9b8
>> [    4.807716] x26: ffff800008fe8d28 x25: ffff8000094a62bd x24:
>> ffff000001b92400
>> [    4.814885] x23: 0000000000000026 x22: ffff800008003ec4 x21:
>> 0000000000000000
>> [    4.822053] x20: 0000000000000001 x19: ffff000002381200 x18:
>> ffffffffffffffff
>> [    4.829222] x17: ffff800076962000 x16: ffff800008000000 x15:
>> ffff800088003b57
>> [    4.836390] x14: 0000000000000000 x13: ffff8000093a5078 x12:
>> 000000000000035d
>> [    4.843558] x11: 000000000000011f x10: ffff8000093a5078 x9 :
>> ffff8000093a5078
>> [    4.850727] x8 : 00000000ffffefff x7 : ffff8000093fd078 x6 :
>> ffff8000093fd078
>> [    4.857895] x5 : 000000000000bff4 x4 : 0000000000000000 x3 :
>> 0000000000000000
>> [    4.865062] x2 : 0000000000000000 x1 : 0000000000000000 x0 :
>> ffff8000093951c0
>> [    4.872230] Call trace:
>> [    4.874686]  __handle_irq_event_percpu+0xf4/0x180
>> [    4.879411]  handle_irq_event+0x64/0xec
>> [    4.883264]  handle_level_irq+0xc0/0x1b0
>> [    4.887202]  generic_handle_irq+0x30/0x50
>> [    4.891229]  mvebu_gpio_irq_handler+0x11c/0x2a0
>> [    4.895780]  handle_domain_irq+0x60/0x90
>> [    4.899720]  gic_handle_irq+0x4c/0xd0
>> [    4.903398]  call_on_irq_stack+0x20/0x4c
>> [    4.907338]  do_interrupt_handler+0x54/0x60
>> [    4.911538]  el1_interrupt+0x30/0x80
>> [    4.915130]  el1h_64_irq_handler+0x18/0x24
>> [    4.919244]  el1h_64_irq+0x78/0x7c
>> [    4.922659]  arch_cpu_idle+0x18/0x2c
>> [    4.926249]  do_idle+0xc4/0x150
>> [    4.929404]  cpu_startup_entry+0x28/0x60
>> [    4.933343]  rest_init+0xe4/0xf4
>> [    4.936584]  arch_call_rest_init+0x10/0x1c
>> [    4.940699]  start_kernel+0x600/0x640
>> [    4.944375]  __primary_switched+0xbc/0xc4
>> [    4.948402] ---[ end trace 940193047b35b311 ]---
>>
>> Initially I dismissed this as a warning that would probably be cleaned
>> up when we did more work on the TPM support for our product but we also
>> seem to be getting some new i2c issues and possibly a kernel stack
>> corruption that we've conflated with this TPM warning.
> Can you reproduce this issue on mainline? Can you also bisect to find
> the culprit?

No the error doesn't appear on a recent mainline kernel. I do still get

tpm_tis_spi spi1.1: 2.0 TPM (device-id 0x1B, rev-id 22)
tpm tpm0: [Firmware Bug]: TPM interrupt not working, polling instead
tpm tpm0: A TPM error (256) occurred attempting the self test

but I think I was getting that on v5.15.110

>
> 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.
>




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