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<7fdfbbf7-cc9e-4a3c-a41b-c0fe161dd8f4@nvidia.com> Date: Thu, 8 May 2025 13:21:30 +0100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6.1 00/97] 6.1.138-rc1 review To: Greg Kroah-Hartman Cc: patches@lists.linux.dev, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de, f.fainelli@gmail.com, sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de, conor@kernel.org, hargar@microsoft.com, broonie@kernel.org, linux-tegra@vger.kernel.org, stable@vger.kernel.org References: <20250507183806.987408728@linuxfoundation.org> <864a7a10-ed68-4507-a67c-60344c57753a@rnnvmail203.nvidia.com> <2a83d6a6-9e80-4c78-94a6-5dedd3326367@nvidia.com> <55d3cdaf-539f-4d5b-8bf1-a2c5f917e81d@nvidia.com> <2025050819-acquaint-guidable-5e97@gregkh> From: Jon Hunter Content-Language: en-US In-Reply-To: <2025050819-acquaint-guidable-5e97@gregkh> Content-Type: text/plain; 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+0100, Jon Hunter wrote: >> >> On 08/05/2025 10:48, Jon Hunter wrote: >>> Hi Greg, >>> >>> On 08/05/2025 10:45, Jon Hunter wrote: >>>> On Wed, 07 May 2025 20:38:35 +0200, Greg Kroah-Hartman wrote: >>>>> This is the start of the stable review cycle for the 6.1.138 release. >>>>> There are 97 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 Fri, 09 May 2025 18:37:41 +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/v6.x/stable-review/ >>>>> patch-6.1.138-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-6.1.y >>>>> and the diffstat can be found below. >>>>> >>>>> thanks, >>>>> >>>>> greg k-h >>>> >>>> Failures detected for Tegra ... >>>> >>>> Test results for stable-v6.1: >>>>      10 builds:    10 pass, 0 fail >>>>      28 boots:    28 pass, 0 fail >>>>      115 tests:    109 pass, 6 fail >>>> >>>> Linux version:    6.1.138-rc1-gca7b19b902b8 >>>> Boards tested:    tegra124-jetson-tk1, tegra186-p2771-0000, >>>>                  tegra186-p3509-0000+p3636-0001, tegra194-p2972-0000, >>>>                  tegra194-p3509-0000+p3668-0000, tegra20-ventana, >>>>                  tegra210-p2371-2180, tegra210-p3450-0000, >>>>                  tegra30-cardhu-a04 >>>> >>>> Test failures:    tegra186-p2771-0000: cpu-hotplug >>>>                  tegra194-p2972-0000: pm-system-suspend.sh >>>>                  tegra210-p2371-2180: cpu-hotplug >>>>                  tegra210-p3450-0000: cpu-hotplug >>> >>> >>> I am seeing some crashes like the following ... >>> >>> [  212.540298] Unable to handle kernel NULL pointer dereference at >>> virtual address 0000000000000000 >>> [  212.549130] Mem abort info: >>> [  212.552008]   ESR = 0x0000000096000004 >>> [  212.555822]   EC = 0x25: DABT (current EL), IL = 32 bits >>> [  212.561151]   SET = 0, FnV = 0 >>> [  212.564213]   EA = 0, S1PTW = 0 >>> [  212.567361]   FSC = 0x04: level 0 translation fault >>> [  212.572246] Data abort info: >>> [  212.575137]   ISV = 0, ISS = 0x00000004 >>> [  212.578980]   CM = 0, WnR = 0 >>> [  212.581945] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000103824000 >>> [  212.588394] [0000000000000000] pgd=0000000000000000, >>> p4d=0000000000000000 >>> [  212.595199] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP >>> [  212.601465] Modules linked in: snd_soc_tegra210_mixer >>> snd_soc_tegra210_ope snd_soc_tegra186_asrc snd_soc_tegra210_adx >>> snd_soc_tegra210_amx snd_soc_tegra210_mvc snd_soc_tegra210_sfc >>> snd_soc_tegra210_admaif snd_soc_tegra186_dspk snd_soc_tegra210_dmic >>> snd_soc_tegra_pcm snd_soc_tegra210_i2s tegra_drm drm_dp_aux_bus cec >>> drm_display_helper drm_kms_helper snd_soc_tegra210_ahub tegra210_adma >>> drm snd_soc_tegra_audio_graph_card snd_soc_audio_graph_card crct10dif_ce >>> snd_soc_simple_card_utils at24 tegra_bpmp_thermal tegra_aconnect >>> snd_hda_codec_hdmi snd_hda_tegra snd_hda_codec snd_hda_core tegra_xudc >>> host1x ina3221 ip_tables x_tables ipv6 >>> [  212.657003] CPU: 0 PID: 44 Comm: kworker/0:1 Tainted: G >>> S                 6.1.138-rc1-gca7b19b902b8 #1 >>> [  212.666306] Hardware name: NVIDIA Jetson TX2 Developer Kit (DT) >>> [  212.672221] Workqueue: events work_for_cpu_fn >>> [  212.676588] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS >>> BTYPE=--) >>> [  212.683546] pc : percpu_ref_put_many.constprop.0+0x18/0xe0 >>> [  212.689036] lr : percpu_ref_put_many.constprop.0+0x18/0xe0 >>> [  212.694520] sp : ffff80000a5fbc70 >>> [  212.697832] x29: ffff80000a5fbc70 x28: ffff800009ba3750 x27: >>> 0000000000000000 >>> [  212.704970] x26: 0000000000000001 x25: 0000000000000028 x24: >>> 0000000000000000 >>> [  212.712105] x23: ffff8001eb1a1000 x22: 0000000000000001 x21: >>> 0000000000000000 >>> [  212.719240] x20: 0000000000000000 x19: 0000000000000000 x18: >>> ffffffffffffffff >>> [  212.726376] x17: 00000000000000a1 x16: 0000000000000001 x15: >>> fffffc0002017800 >>> [  212.733510] x14: 00000000fffffffe x13: dead000000000100 x12: >>> dead000000000122 >>> [  212.740645] x11: 0000000000000001 x10: 00000000f0000080 x9 : >>> 0000000000000000 >>> [  212.747780] x8 : ffff80000a5fbc98 x7 : 00000000ffffffff x6 : >>> ffff80000a19c410 >>> [  212.754914] x5 : ffff0001f4d44750 x4 : 0000000000000000 x3 : >>> 0000000000000000 >>> [  212.762048] x2 : ffff8001eb1a1000 x1 : ffff000080a48ec0 x0 : >>> 0000000000000001 >>> [  212.769184] Call trace: >>> [  212.771628]  percpu_ref_put_many.constprop.0+0x18/0xe0 >>> [  212.776769]  memcg_hotplug_cpu_dead+0x60/0x90 >>> [  212.781127]  cpuhp_invoke_callback+0x118/0x230 >>> [  212.785574]  _cpu_down+0x180/0x3b0 >>> [  212.788981]  __cpu_down_maps_locked+0x18/0x30 >>> [  212.793339]  work_for_cpu_fn+0x1c/0x30 >>> [  212.797086]  process_one_work+0x1cc/0x320 >>> [  212.801097]  worker_thread+0x2c8/0x450 >>> [  212.804846]  kthread+0x10c/0x110 >>> [  212.808075]  ret_from_fork+0x10/0x20 >>> [  212.811657] Code: 910003fd f9000bf3 aa0003f3 97f9c873 (f9400260) >>> [  212.817745] ---[ end trace 0000000000000000 ]--- >>> >>> I will kick off a bisect now. >> >> >> I wonder if it is this old chestnut again ... >> >> Shakeel Butt >> memcg: drain obj stock on cpu hotplug teardown >> >> I will try that first. > > Argh, that one keeps slipping back in. I'll go drop it from here, and > 6.6.y as I don't see what would have fixed it from before. Thanks! Reverting that does fix it. Jon -- nvpublic