Re: [PATCH 5.4 00/74] 5.4.110-rc1 review

[Jon Hunter <jonathanh@nvidia.com>]

Hi Greg,

On 07/04/2021 09:21, Jon Hunter wrote:
> On Mon, 05 Apr 2021 10:53:24 +0200, Greg Kroah-Hartman wrote:
>> This is the start of the stable review cycle for the 5.4.110 release.
>> There are 74 patches in this series, all will be posted as a response
>> to this one.  If anyone has any issues with these being applied, please
>> let me know.
>>
>> Responses should be made by Wed, 07 Apr 2021 08:50:09 +0000.
>> Anything received after that time might be too late.
>>
>> The whole patch series can be found in one patch at:
>> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.110-rc1.gz
>> or in the git tree and branch at:
>> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
>> and the diffstat can be found below.
>>
>> thanks,
>>
>> greg k-h
> 
> Failures detected for Tegra ...
> 
> Test results for stable-v5.4:
>     12 builds:	12 pass, 0 fail
>     26 boots:	26 pass, 0 fail
>     59 tests:	58 pass, 1 fail
> 
> Linux version:	5.4.110-rc1-gc6f7c5a01d5a
> Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
>                 tegra194-p2972-0000, tegra20-ventana,
>                 tegra210-p2371-2180, tegra210-p3450-0000,
>                 tegra30-cardhu-a04
> 
> Test failures:	tegra194-p2972-0000: boot.py


The following change ...

Thierry Reding <treding@nvidia.com>
    drm/tegra: sor: Grab runtime PM reference across reset


... is causing this error ...

boot: logs: [      16.166043] WARNING KERN ------------[ cut here ]------------
boot: logs: [      16.166061] WARNING KERN reset bpmp (ID: 89) is not acquired
boot: logs: [      16.166132] WARNING KERN WARNING: CPU: 2 PID: 90 at /dvs/git/dirty/git-master_l4t-upstream/kernel/drivers/reset/core.c:379 reset_control_assert+0x174/0x1a8
boot: logs: [      16.166136] WARNING KERN Modules linked in: tegra_drm(+) drm_kms_helper drm snd_hda_codec_hdmi snd_hda_tegra snd_hda_codec host1x crct10dif_ce pwm_tegra snd_hda_core pwm_fan pcie_tegra194(+) lm90 phy_tegra194_p2u tegra_bpmp_thermal ip_tables x_tables ipv6
boot: logs: [      16.166216] WARNING KERN CPU: 2 PID: 90 Comm: kworker/2:1 Not tainted 5.4.110-rc1-gc6f7c5a01d5a #1
boot: logs: [      16.166220] WARNING KERN Hardware name: NVIDIA Jetson AGX Xavier Developer Kit (DT)
boot: logs: [      16.166233] WARNING KERN Workqueue: pm pm_runtime_work
boot: logs: [      16.166242] WARNING KERN pstate: 40c00009 (nZcv daif +PAN +UAO)
boot: logs: [      16.166248] WARNING KERN pc : reset_control_assert+0x174/0x1a8
boot: logs: [      16.166252] WARNING KERN lr : reset_control_assert+0x174/0x1a8
boot: logs: [      16.166256] WARNING KERN sp : ffff800011bc3ba0
boot: logs: [      16.166265] WARNING KERN x29: ffff800011bc3ba0 x28: 0000000000000000
boot: logs: [      16.166288] WARNING KERN x27: 0000000000000008 x26: ffff8000114d9000
boot: logs: [      16.166303] WARNING KERN x25: 000000032b5183e0 x24: ffff0003e3443800
boot: logs: [      16.166317] WARNING KERN x23: 0000000000000000 x22: ffff800010710638
boot: logs: [      16.166332] WARNING KERN x21: ffff0003eb967410 x20: ffff0003eb84a360
boot: logs: [      16.166347] WARNING KERN x19: ffff0003e12fd080 x18: ffffffffffffffff
boot: logs: [      16.166361] WARNING KERN x17: 0000000000000000 x16: 0000000000000000
boot: logs: [      16.166375] WARNING KERN x15: ffff8000114d98c8 x14: 00000000fffffff0
boot: logs: [      16.166416] WARNING KERN x13: ffff8000116b9fa8 x12: ffff8000114f25e8
boot: logs: [      16.166424] WARNING KERN x11: ffff8000114f2000 x10: 0000000000000000
boot: logs: [      16.166430] WARNING KERN x9 : 000000000000017a x8 : 0000000000000004
boot: logs: [      16.166436] WARNING KERN x7 : 000000000000017a x6 : ffff0003ee17c180
boot: logs: [      16.166442] WARNING KERN x5 : 0000000000000007 x4 : ffff0003ee17c180
boot: logs: [      16.166449] WARNING KERN x3 : 0000000000000006 x2 : 0000000000000007
boot: logs: [      16.166460] WARNING KERN x1 : aa01989c70ddbd00 x0 : 0000000000000000
boot: logs: [      16.166467] WARNING KERN Call trace:
boot: logs: [      16.166474] WARNING KERN  reset_control_assert+0x174/0x1a8
boot: logs: [      16.166516] WARNING KERN  tegra_sor_suspend+0x24/0x88 [tegra_drm]
boot: logs: [      16.166526] WARNING KERN  pm_generic_runtime_suspend+0x28/0x40
boot: logs: [      16.166534] WARNING KERN  genpd_runtime_suspend+0x90/0x240
boot: logs: [      16.166541] WARNING KERN  __rpm_callback+0xd8/0x150
boot: logs: [      16.166546] WARNING KERN  rpm_callback+0x24/0x98
boot: logs: [      16.166551] WARNING KERN  rpm_suspend+0xe0/0x480
boot: logs: [      16.166556] WARNING KERN  rpm_idle+0x124/0x140
boot: logs: [      16.166561] WARNING KERN  pm_runtime_work+0xa0/0xb8
boot: logs: [      16.166569] WARNING KERN  process_one_work+0x1c8/0x358
boot: logs: [      16.166575] WARNING KERN  worker_thread+0x48/0x460
boot: logs: [      16.166580] WARNING KERN  kthread+0x120/0x150
boot: logs: [      16.166587] WARNING KERN  ret_from_fork+0x10/0x18
boot: logs: [      16.166592] WARNING KERN ---[ end trace ec6031475f7a0830 ]---
boot: logs: [      16.166670] ERR KERN tegra-sor 15b80000.sor: failed to assert reset: -1


Sorry we should have checked which kernels to back port
this fix for. Can we drop this for v5.4? Appears to be
fine for v5.10+.

Thanks
Jon

-- 
nvpublic