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Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock

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Hello,

在 2024/9/26 15:48, Uwe Kleine-König 写道:
> Hello,
> 
> On 9/23/24 03:53, xiao sheng wen(肖盛文) wrote:
>> I apply this patch on Debian kernel 6.11-1~exp1 (2024-09-19) source code.
>>
>> uname -a
>> Linux atzlinux-ce 6.11-rt-amd64 #1 SMP PREEMPT_RT atzlinux 6.11-1~exp1 
>> (2024-09-19) x86_64 GNU/Linux
>>
>> I get the following errors in dmesg:
>>
>> [    7.273690] ucsi_acpi USBC000:00: possible UCSI driver bug 2
>> [    7.451822] ucsi_acpi USBC000:00: error -EINVAL: PPM init failed
>> [    7.537749] ------------[ cut here ]------------
>> [    7.537753] WARNING: CPU: 12 PID: 96 at kernel/workqueue.c:2259 
>> delayed_work_timer_fn+0x63/0x90
>> [    7.537763] Modules linked in: rfcomm cmac algif_hash 
>> algif_skcipher af_alg snd_seq_dummy snd_hrtimer snd_seq snd_seq_device 
>> bnep btusb uvcvideo btrtl btintel videobuf2_vmalloc btbcm uvc btmtk 
>> videobuf2_memops videobuf2_v4l2 bluetooth videodev videobuf2_common mc 
>> snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_sof_probes 
>> snd_soc_intel_hda_dsp_common binfmt_misc nls_ascii nls_cp437 vfat fat 
>> snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic 
>> snd_hda_scodec_component snd_soc_dmic snd_sof_pci_intel_tgl 
>> snd_sof_pci_intel_cnl snd_sof_intel_hda_generic soundwire_intel 
>> soundwire_generic_allocation soundwire_cadence 
>> snd_sof_intel_hda_common snd_sof_intel_hda_mlink snd_sof_intel_hda 
>> snd_sof_pci snd_sof_xtensa_dsp snd_sof iwlmvm snd_sof_utils 
>> intel_uncore_frequency snd_soc_hdac_hda intel_uncore_frequency_common 
>> snd_soc_acpi_intel_match x86_pkg_temp_thermal intel_powerclamp 
>> snd_soc_acpi soundwire_bus coretemp kvm_intel snd_ctl_led mac80211 
>> snd_soc_avs kvm snd_soc_hda_codec snd_hda_ext_core snd_soc_core libarc4
>> [    7.537811]  crct10dif_pclmul snd_compress snd_pcm_dmaengine 
>> ghash_clmulni_intel sha512_ssse3 snd_hda_intel sha256_ssse3 sha1_ssse3 
>> iwlwifi snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec aesni_intel 
>> gf128mul snd_hda_core crypto_simd cryptd rapl mei_hdcp mei_pxp mei_wdt 
>> snd_hwdep intel_rapl_msr processor_thermal_device_pci intel_cstate 
>> cfg80211 processor_thermal_device processor_thermal_wt_hint 
>> intel_uncore snd_pcm thinkpad_acpi think_lmi iTCO_wdt 
>> processor_thermal_rfim mei_me firmware_attributes_class intel_pmc_bxt 
>> processor_thermal_rapl snd_timer ucsi_acpi mei iTCO_vendor_support 
>> intel_rapl_common nvram typec_ucsi wmi_bmof watchdog platform_profile 
>> processor_thermal_wt_req pcspkr processor_thermal_power_floor snd 
>> igen6_edac processor_thermal_mbox typec roles soundcore rfkill ac 
>> int3403_thermal joydev int340x_thermal_zone intel_pmc_core 
>> int3400_thermal intel_vsec intel_hid pmt_telemetry acpi_thermal_rel 
>> sparse_keymap acpi_tad pmt_class acpi_pad evdev serio_raw dm_mod loop 
>> configfs efi_pstore efivarfs ip_tables
>> [    7.537861]  x_tables autofs4 ext4 crc16 mbcache jbd2 
>> crc32c_generic i915 drm_buddy i2c_algo_bit drm_display_helper cec 
>> hid_multitouch rc_core hid_generic xhci_pci xhci_hcd ttm i2c_hid_acpi 
>> i2c_hid usbcore drm_kms_helper hid intel_lpss_pci video nvme 
>> intel_lpss crc32_pclmul i2c_i801 thunderbolt psmouse drm nvme_core 
>> e1000e crc32c_intel idma64 usb_common i2c_smbus fan button battery wmi
>> [    7.537887] CPU: 12 UID: 0 PID: 96 Comm: ktimers/12 Not tainted 
>> 6.11- rt-amd64 #1  atzlinux 6.11-1~exp1
>> [    7.537891] Hardware name: LENOVO 21HD0078CD/21HD0078CD, BIOS 
>> N3QET47W (1.47 ) 07/18/2024
>> [    7.537893] RIP: 0010:delayed_work_timer_fn+0x63/0x90
>> [    7.537898] Code: 65 48 8b 3d 3f ad b4 77 65 8b 05 40 ad b4 77 8b 
>> 97 00 0d 00 00 25 00 00 ff 00 81 e2 00 01 00 00 09 d0 75 06 f6 47 2c 
>> 20 75 0b <0f> 0b 5b 5d 41 5c c3 cc cc cc cc e8 fd 76 00 00 48 85 c0 74 
>> eb 48
>> [    7.537900] RSP: 0018:ffffbb900046bc98 EFLAGS: 00010006
>> [    7.537903] RAX: 0000000000000100 RBX: ffff9a6182053000 RCX: 
>> ffff9a64cf7a35c0
>> [    7.537904] RDX: 0000000000000100 RSI: ffffffff884eab80 RDI: 
>> ffff9a6181130000
>> [    7.537906] RBP: 0000000000002000 R08: ffff9a64cf7a3610 R09: 
>> ffff9a64cf7a3658
>> [    7.537907] R10: 0000000000000002 R11: 0000000000000001 R12: 
>> ffff9a6183bfa900
>> [    7.537908] R13: dead000000000122 R14: ffffffff884eab80 R15: 
>> ffff9a6183bfa920
>> [    7.537910] FS:  0000000000000000(0000) GS:ffff9a64cf600000(0000) 
>> knlGS:0000000000000000
>> [    7.537912] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [    7.537913] CR2: 0000561c94ed4000 CR3: 000000041d62c000 CR4: 
>> 0000000000f50ef0
>> [    7.537915] PKRU: 55555554
>> [    7.537916] Call Trace:
>> [    7.537918]  <TASK>
>> [    7.537919]  ? delayed_work_timer_fn+0x63/0x90
>> [    7.537923]  ? __warn.cold+0x93/0xed
>> [    7.537926]  ? delayed_work_timer_fn+0x63/0x90
>> [    7.537933]  ? report_bug+0xff/0x140
>> [    7.537937]  ? handle_bug+0x3c/0x80
>> [    7.537942]  ? exc_invalid_op+0x17/0x70
>> [    7.537945]  ? asm_exc_invalid_op+0x1a/0x20
>> [    7.537947]  ? __pfx_delayed_work_timer_fn+0x10/0x10
>> [    7.537951]  ? __pfx_delayed_work_timer_fn+0x10/0x10
>> [    7.537955]  ? delayed_work_timer_fn+0x63/0x90
>> [    7.537958]  ? __pfx_delayed_work_timer_fn+0x10/0x10
>> [    7.537961]  call_timer_fn+0x27/0x120
>> [    7.537965]  __run_timers+0x18d/0x300
>> [    7.537969]  timer_expire_remote+0x51/0x80
>> [    7.537973]  tmigr_handle_remote+0x3cc/0x470
>> [    7.537979]  handle_softirqs.isra.0+0xb5/0x230
>> [    7.537982]  ? __pfx_smpboot_thread_fn+0x10/0x10
>> [    7.537986]  run_timersd+0x3e/0x80
>> [    7.537988]  smpboot_thread_fn+0xda/0x1d0
>> [    7.537992]  kthread+0xcf/0x100
>> [    7.537995]  ? __pfx_kthread+0x10/0x10
>> [    7.537997]  ret_from_fork+0x31/0x50
>> [    7.538000]  ? __pfx_kthread+0x10/0x10
>> [    7.538001]  ret_from_fork_asm+0x1a/0x30
>> [    7.538006]  </TASK>
>> [    7.538007] ---[ end trace 0000000000000000 ]---
>>
>> The whole dmesg is:
>> https://linux-hardware.org/?probe=28057f9ed2&log=dmesg
> 
> On a first glance this looks like an unrelated issue to me. Could you 
> test with CONFIG_X86_INTEL_PSTATE=n? (If doesn't matter if you do this 
> with my patch applied or not, without CONFIG_X86_INTEL_PSTATE the driver 
> isn't build.)
> 
> Best regards
> Uwe
Yes, this WARNING is unrelated issue to your patch.It come from kernel 
[ktimers], so I don't need do test with CONFIG_X86_INTEL_PSTATE=n.

I apply your patch on Debian kernel 6.10.11-1 (2024-09-22) source code.

uname -a
Linux atzlinux-ce 6.10.11-rt-amd64 #1 SMP PREEMPT_RT atzlinux 6.10.11-1 
(2024-09-22) x86_64 GNU/Linux

There is not any errors in dmesg now, work perfect!
IMHO, this patch fix this bug in kernel 6.10.11-1.


Thanks!

-- 
肖盛文 xiao sheng wen
Debian QA page: 
https://qa.debian.org/developer.php?login=atzlinux%40sina.com
Debian salsa: https://salsa.debian.org/atzlinux-guest
GnuPG Public Key: 0x00186602339240CB

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Thread

Bug#1076483: Call Trace on rt kernel, CPU Intel 13th Gen Intel(R) Core(TM) i5-1340P xiao sheng wen <atzlinux@sina.com> - 2024-07-17 05:00 +0200
  Processed: this bug also exist in 6.10-rt-amd64 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-07-19 05:40 +0200
  Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock xiao sheng wen(肖盛文) <atzlinux@sina.com> - 2024-09-23 04:10 +0200
    Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock Uwe Kleine-König <ukleinek@debian.org> - 2024-09-26 10:00 +0200
      Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock xiao sheng wen(肖盛文) <atzlinux@sina.com> - 2024-09-27 12:00 +0200
        Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock Uwe Kleine-König <u.kleine-koenig@baylibre.com> - 2024-10-05 18:10 +0200
          Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock xiao sheng wen(肖盛文) <atzlinux@sina.com> - 2024-10-06 04:50 +0200
  Bug#1076483: [PATCH] cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock xiao sheng wen(肖盛文) <atzlinux@sina.com> - 2024-10-01 03:50 +0200
  Processed: Re: Bug#1076483: [PATCH] cpufreq: intel_pstate: Make  hwp_notify_lock a raw spinlock "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-10-05 18:10 +0200
  Processed: Re: Bug#1076483: [PATCH] cpufreq: intel_pstate: Make  hwp_notify_lock a raw spinlock "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-10-06 04:50 +0200

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