On Wed, 28 May 2025, at 12:08 PM, Borah, Chaitanya Kumar wrote:
> Hello Luke,
>
> Hope you are doing well. I am Chaitanya from the linux graphics team in Intel.
>
> This mail is regarding a regression we are seeing in our CI runs[1] on 
> linux-next repository.

Can you tell me if the fix here was included?
https://lkml.org/lkml/2025/5/24/152

I could change to:
static void asus_s2idle_check_register(void)
{
    // Only register for Ally devices
    if (dmi_check_system(asus_rog_ally_device)) {
        if (acpi_register_lps0_dev(&asus_ally_s2idle_dev_ops))
            pr_warn("failed to register LPS0 sleep handler in asus-wmi\n");
    }
}

but I don't really understand what is happening here. The inner lps0 functions 
won't run unless use_ally_mcu_hack is set.

I will do my best to fix but I need to understand what happened a bit better.

regards,
Luke.

> Since the version next-20250509 [2], we are seeing the following regression
>
> `````````````````````````````````````````````````````````````````````````````````
> <4>[    5.400826] ------------[ cut here ]------------
> <4>[    5.400832] list_add double add: new=ffffffffa07c0ca0, 
> prev=ffffffff837e9a60, next=ffffffffa07c0ca0.
> <4>[    5.400845] WARNING: CPU: 0 PID: 379 at lib/list_debug.c:35 
> __list_add_valid_or_report+0xdc/0xf0
> <4>[    5.400850] Modules linked in: cmdlinepart(+) eeepc_wmi(+) 
> asus_nb_wmi(+) asus_wmi spi_nor(+) sparse_keymap mei_pxp mtd 
> platform_profile kvm_intel(+) mei_hdcp wmi_bmof kvm irqbypass 
> polyval_clmulni usbhid ghash_clmulni_intel snd_hda_intel hid sha1_ssse3 
> r8152(+) binfmt_misc aesni_intel snd_intel_dspcfg mii r8169 
> snd_hda_codec rapl video snd_hda_core intel_cstate snd_hwdep realtek 
> snd_pcm snd_timer mei_me snd i2c_i801 i2c_mux spi_intel_pci idma64 
> soundcore spi_intel i2c_smbus mei intel_pmc_core nls_iso8859_1 
> pmt_telemetry pmt_class intel_pmc_ssram_telemetry pinctrl_alderlake 
> intel_vsec acpi_tad wmi acpi_pad dm_multipath msr nvme_fabrics fuse 
> efi_pstore nfnetlink ip_tables x_tables autofs4
> <4>[    5.400904] CPU: 0 UID: 0 PID: 379 Comm: (udev-worker) Tainted: G 
> S                  
> 6.15.0-rc7-next-20250526-next-20250526-g3be1a7a31fbd+ #1 
> PREEMPT(voluntary) 
> <4>[    5.400907] Tainted: [S]=CPU_OUT_OF_SPEC
> <4>[    5.400908] Hardware name: ASUS System Product Name/PRIME Z790-P 
> WIFI, BIOS 0812 02/24/2023
> <4>[    5.400909] RIP: 0010:__list_add_valid_or_report+0xdc/0xf0
> <4>[    5.400912] Code: 16 48 89 f1 4c 89 e6 e8 a2 c5 5f ff 0f 0b 31 c0 
> e9 72 ff ff ff 48 89 f2 4c 89 e1 48 89 fe 48 c7 c7 68 ba 0f 83 e8 84 c5 
> 5f ff <0f> 0b 31 c0 e9 54 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 
> 90
> <4>[    5.400914] RSP: 0018:ffffc90002763588 EFLAGS: 00010246
> <4>[    5.400916] RAX: 0000000000000000 RBX: ffffffffa07c0ca0 RCX: 
> 0000000000000000
> <4>[    5.400918] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 
> 0000000000000000
> <4>[    5.400919] RBP: ffffc90002763598 R08: 0000000000000000 R09: 
> 0000000000000000
> <4>[    5.400920] R10: 0000000000000000 R11: 0000000000000000 R12: 
> ffffffffa07c0ca0
> <4>[    5.400921] R13: ffffffffa07c0ca0 R14: 0000000000000000 R15: 
> ffff8881212d6da0
> <4>[    5.400923] FS:  0000778637b418c0(0000) GS:ffff8888dad0c000(0000) 
> knlGS:0000000000000000
> <4>[    5.400926] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> <4>[    5.400928] CR2: 00007786373b80b2 CR3: 0000000116faa000 CR4: 
> 0000000000f50ef0
> <4>[    5.400931] PKRU: 55555554
> <4>[    5.400933] Call Trace:
> <4>[    5.400935]  <TASK>
> <4>[    5.400937]  ? lock_system_sleep+0x2b/0x40
> <4>[    5.400942]  acpi_register_lps0_dev+0x58/0xb0
> <4>[    5.400949]  asus_wmi_probe+0x7f/0x1930 [asus_wmi]
> <4>[    5.400956]  ? kernfs_create_link+0x69/0xe0
> `````````````````````````````````````````````````````````````````````````````````
> Detailed log can be found in [3].
>
> After bisecting the tree, the following patch [4] seems to be the first "bad"
> commit
>
> `````````````````````````````````````````````````````````````````````````````````````````````````````````
> commit feea7bd6b02d43a794e3f065650d89cf8d8e8e59
> Author: Luke D. Jones mailto:l...@ljones.dev
> Date:   Sun Mar 23 15:34:21 2025 +1300
>
>     platform/x86: asus-wmi: Refactor Ally suspend/resume
> `````````````````````````````````````````````````````````````````````````````````````````````````````````
>
> We could not revert the patch because of merge conflict but resetting 
> to the parent of the commit seems to fix the issue
>
> Could you please check why the patch causes this regression and provide 
> a fix if necessary?
>
> Thank you.
>
> Regards
>
> Chaitanya
>
> [1] https://intel-gfx-ci.01.org/tree/linux-next/combined-alt.html?
> [2] 
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250509
>  
> [3] 
> https://intel-gfx-ci.01.org/tree/linux-next/next-20250526/bat-rpls-4/boot0.txt
>  
> [4] 
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250509&id=feea7bd6b02d43a794e3f065650d89cf8d8e8e59

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