[    4.588458] ------------[ cut here ]------------
[    4.588459] WARNING: CPU: 5 PID: 813 at 
drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c:878 
iwl_init_he_hw_capab+0x278/0x290 [iwlwifi]
[    4.588478] Modules linked in: snd_soc_acpi_intel_match xe(+) 
snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_acpi 
soundwire_bus snd_soc_sdca drm_gpuvm gpu_sched iwlmvm(+) snd_soc_avs 
drm_ttm_helper drm_exec drm_suballoc_helper nls_iso8859_1 snd_soc_hda_codec 
snd_hda_ext_core mac80211 snd_soc_core snd_compress intel_uncore_frequency 
intel_uncore_frequency_common ac97_bus snd_pcm_dmaengine intel_tcc_cooling 
libarc4 x86_pkg_temp_thermal snd_hda_intel intel_powerclamp coretemp 
snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core kvm_intel 
iwlwifi snd_hwdep snd_pcm i915 kvm snd_seq_midi snd_seq_midi_event snd_rawmidi 
snd_seq irqbypass polyval_clmulni btusb uvcvideo polyval_generic 
ghash_clmulni_intel snd_seq_device btrtl sha256_ssse3 videobuf2_vmalloc 
snd_timer processor_thermal_device_pci sha1_ssse3 uvc btintel 
processor_thermal_device ee1004 videobuf2_memops aesni_intel 
processor_thermal_wt_hint cmdlinepart videobuf2_v4l2 btbcm drm_buddy 
crypto_simd spi_nor ttm cryptd processor_thermal_rfim
[    4.588515]  mei_hdcp mei_pxp btmtk mtd intel_rapl_msr i2c_i801 
videobuf2_common drm_display_helper snd mei_me rapl processor_thermal_rapl 
cfg80211 bluetooth cec intel_rapl_common soundcore intel_cstate i2c_smbus 
wmi_bmof spi_intel_pci mei spi_intel rc_core i2c_mux processor_thermal_wt_req 
ov13858 processor_thermal_power_floor i2c_algo_bit processor_thermal_mbox 
v4l2_fwnode v4l2_async int3403_thermal int340x_thermal_zone intel_pmc_core 
videodev pmt_telemetry mc pmt_class int3400_thermal intel_hid acpi_thermal_rel 
acpi_pad intel_vsec joydev sparse_keymap input_leds mac_hid acer_wireless 
sch_fq_codel msr parport_pc ppdev lp parport efi_pstore nfnetlink dmi_sysfs 
ip_tables x_tables autofs4 usbhid nvme nvme_core ahci nvme_auth libahci 
hid_multitouch hid_generic r8169 ucsi_acpi intel_lpss_pci thunderbolt 
typec_ucsi realtek serio_raw video typec intel_lpss vmd i2c_hid_acpi idma64 
i2c_hid hid wmi pinctrl_tigerlake
[    4.588561] CPU: 5 UID: 0 PID: 813 Comm: modprobe Not tainted 
6.14.0-29-generic #29-Ubuntu
[    4.588562] Hardware name: Acer Aspire A515-57/Ganymede_ADU, BIOS V1.30 
01/13/2025
[    4.588564] RIP: 0010:iwl_init_he_hw_capab+0x278/0x290 [iwlwifi]
[    4.588576] Code: 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 66 
89 18 41 0f b7 4e 5c 83 c2 01 48 83 e8 80 39 ca 7c ed e9 9d fe ff ff <0f> 0b e9 
1a ff ff ff 0f 0b e9 44 ff ff ff e8 b5 62 6d f7 0f 1f 44
[    4.588577] RSP: 0018:ffffbec040f7b5d0 EFLAGS: 00010246
[    4.588579] RAX: 0000000000000000 RBX: ffff9efa61f3c5a8 RCX: 0000000000000000
[    4.588580] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    4.588581] RBP: ffffbec040f7b638 R08: 0000000000000000 R09: 0000000000000000
[    4.588581] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002
[    4.588582] R13: ffff9efa61f3c000 R14: ffff9efa61f3c170 R15: 0000000000000000
[    4.588583] FS:  0000722d14396680(0000) GS:ffff9f01cf280000(0000) 
knlGS:0000000000000000
[    4.588584] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.588585] CR2: 00007b15ec17a000 CR3: 000000010ad0e003 CR4: 0000000000f72ef0
[    4.588586] PKRU: 55555554
[    4.588587] Call Trace:
[    4.588588]  <TASK>
[    4.588590]  iwl_init_sbands+0x252/0x2b0 [iwlwifi]
[    4.588601]  iwl_get_nvm+0x275/0x310 [iwlwifi]
[    4.588611]  ? _raw_spin_lock_irqsave+0xe/0x20
[    4.588614]  iwl_run_unified_mvm_ucode+0x2fc/0x340 [iwlmvm]
[    4.588634]  ? iwl_run_unified_mvm_ucode+0x2fc/0x340 [iwlmvm]
[    4.588646]  ? iwl_trans_write32+0xe/0x20 [iwlwifi]
[    4.588663]  ? __pfx_iwl_wait_init_complete+0x10/0x10 [iwlmvm]
[    4.588672]  ? iwl_trans_write32+0xe/0x20 [iwlwifi]
[    4.588691]  ? iwl_write32+0x27/0x90 [iwlwifi]
[    4.588700]  iwl_run_init_mvm_ucode+0x1fa/0x400 [iwlmvm]
[    4.588710]  ? iwl_pcie_check_hw_rf_kill+0x24/0xc0 [iwlwifi]
[    4.588723]  iwl_mvm_start_get_nvm+0x9d/0x220 [iwlmvm]
[    4.588741]  iwl_op_mode_mvm_start+0x7d8/0xaa0 [iwlmvm]
[    4.588753]  _iwl_op_mode_start+0x70/0x100 [iwlwifi]
[    4.588763]  iwl_opmode_register+0x6d/0xf0 [iwlwifi]
[    4.588773]  ? __pfx_iwl_mvm_init+0x10/0x10 [iwlmvm]
[    4.588783]  iwl_mvm_init+0x38/0xff0 [iwlmvm]
[    4.588792]  ? __pfx_iwl_mvm_init+0x10/0x10 [iwlmvm]
[    4.588801]  do_one_initcall+0x5b/0x330
[    4.588804]  do_init_module+0x97/0x280
[    4.588806]  load_module+0x681/0x750
[    4.588807]  init_module_from_file+0x96/0x100
[    4.588809]  idempotent_init_module+0x111/0x300
[    4.588811]  __x64_sys_finit_module+0x6b/0xd0
[    4.588813]  x64_sys_call+0x17fe/0x2310
[    4.588815]  do_syscall_64+0x7e/0x170
[    4.588817]  ? rseq_ip_fixup+0x8d/0x1e0
[    4.588819]  ? arch_exit_to_user_mode_prepare.isra.0+0xc8/0xd0
[    4.588821]  ? syscall_exit_to_user_mode+0x38/0x1d0
[    4.588823]  ? do_syscall_64+0x8a/0x170
[    4.588824]  ? handle_pte_fault+0x1db/0x200
[    4.588826]  ? __handle_mm_fault+0x3d2/0x7a0
[    4.588828]  ? __count_memcg_events+0xd3/0x1a0
[    4.588830]  ? count_memcg_events.constprop.0+0x2a/0x50
[    4.588831]  ? handle_mm_fault+0x1bb/0x2d0
[    4.588831] loop13: detected capacity change from 0 to 502920
[    4.588832]  ? do_user_addr_fault+0x5e9/0x7e0
[    4.588834]  ? arch_exit_to_user_mode_prepare.isra.0+0x22/0xd0
[    4.588835]  ? irqentry_exit_to_user_mode+0x2d/0x1d0
[    4.588837]  ? irqentry_exit+0x43/0x50
[    4.588839]  ? exc_page_fault+0x96/0x1e0
[    4.588841]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[    4.588843] RIP: 0033:0x722d1393126d
[    4.588845] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 
f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 
f0 ff ff 73 01 c3 48 8b 0d 5b eb 0d 00 f7 d8 64 89 01 48
[    4.588846] RSP: 002b:00007ffed8510938 EFLAGS: 00000246 ORIG_RAX: 
0000000000000139
[    4.588848] RAX: ffffffffffffffda RBX: 00005893338d7060 RCX: 0000722d1393126d
[    4.588848] RDX: 0000000000000004 RSI: 00005892fc58319e RDI: 0000000000000002
[    4.588850] RBP: 00007ffed85109e0 R08: 0000000000000000 R09: 00005893338d7780
[    4.588851] R10: 0000000000000000 R11: 0000000000000246 R12: 00005892fc58319e
[    4.588852] R13: 0000000000040000 R14: 00005893338d6ec0 R15: 00005893338d7b20
[    4.588854]  </TASK>
[    4.588855] ---[ end trace 0000000000000000 ]---

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https://bugs.launchpad.net/bugs/2121693

Title:
  iwlwifi drivers make network unavailable after some time

Status in linux package in Ubuntu:
  New

Bug description:
  Using an ACER Laptop here unddddddder Ubuntu 25.04, behavior was the same 
under 24.10 and 24.04 :
  System Information
          Manufacturer: Acer
          Product Name: Aspire A515-57
          Version: V1.30

  WiFi card is :
  0000:00:14.3 Network controller: Intel Corporation Alder Lake-P PCH CNVi WiFi 
(rev 01)
          Subsystem: Intel Corporation Dual Band Wi-Fi 6(802.11ax) AX201 160MHz 
2x2 [Harrison Peak]
          Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 9
          Memory at 601f274000 (64-bit, non-prefetchable) [size=16K]
          Capabilities: [c8] Power Management version 3
          Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
          Capabilities: [40] Express Root Complex Integrated Endpoint, 
IntMsgNum 0
          Capabilities: [80] MSI-X: Enable+ Count=16 Masked-
          Capabilities: [100] Latency Tolerance Reporting
          Capabilities: [164] Vendor Specific Information: ID=0010 Rev=0 
Len=014 <?>
          Kernel driver in use: iwlwifi
          Kernel modules: iwlwifi

  When using WiFi connected to a 5GHz access point, within a random time
  though mins to hours depending on the traffic usage on the card, the
  iwlwifi driver can get unusable leading to impossibility to use WiFi
  on the PC, only way to solve the problem after crash is to shutdown
  totally the laptop and cold boot to recover a usable connection.

  Attached are the logs found under dmesg which show when the problem
  occurs.

  Found a way to avoid the problem to occurs but it leads to have an
  almost unusable WiFi as the transfer rate is limited to 15~16Mbits/sec
  ...

  by adding 
  options iwlwifi 11n_disable=1

  to /etc/modprobe.d/iwlwifi.conf there is no crash anymore but it
  renders the laptop very laggy on some situations...

  I have a double boot with Windows 11 on this laptop and can confirm
  that I have no problem even with heavy speed usage under Windows,
  never had annny crash related to WiFi under Windows, but sorry Windows
  is not a solution for me :)

  Others tests I've done :
  - tried with different Live USB : Fedora / Ubuntu / Mint : all failed so the 
problem could be related to a common issue with wilwifi drivers under Linux ?
  - tried to change some settings at the access point's side : Mercusys HALO 
H80X which is 3 nodes Wifi 6 AX3000 Mesh but didn't find any setting which 
permit to solve the problem. I do not have access to another Access Point to 
test if this could be the culprit ...
  - some more configurations under /etc/modprobe.d/iwlwifi.conf ( I will output 
them below in a separate attachment).

  Available and at your disposal to give some more informations and/or
  debug more if you need some more tests.

  Thanks a lot for reading ! :)


  -------------------------------------------------------
  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: linux-image-generic 6.14.0-29.29
  ProcVersionSignature: Ubuntu 6.14.0-29.29-generic 6.14.8
  Uname: Linux 6.14.0-29-generic x86_64
  ApportVersion: 2.32.0-0ubuntu5.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lolomin    2090 F.... pipewire
                        lolomin    2093 F.... wireplumber
   /dev/snd/seq:        lolomin    2090 F.... pipewire
  CasperMD5CheckResult: pass
  CurrentDesktop: X-Cinnamon
  Date: Fri Aug 29 16:40:09 2025
  InstallationDate: Installed on 2024-07-05 (420 days ago)
  InstallationMedia: Ubuntu-Cinnamon 24.04 LTS "Noble Numbat" - Release amd64 
(20240425)
  MachineType: Acer Aspire A515-57
  ProcEnviron:
   LANG=fr_FR.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-29-generic 
root=UUID=3b1ab1f5-3c43-4750-a198-2f3128d73147 ro security=selinux quiet splash 
pcie_port_pm=off pcie_aspm.policy=performance vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-6.14.0-29-generic N/A
   linux-backports-modules-6.14.0-29-generic  N/A
   linux-firmware                             20250317.git1d4c88ee-0ubuntu1.5
  SourcePackage: linux
  UpgradeStatus: Upgraded to plucky on 2025-04-29 (122 days ago)
  dmi.bios.date: 01/13/2025
  dmi.bios.release: 1.30
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.30
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: Ganymede_ADU
  dmi.board.vendor: ADL
  dmi.board.version: V1.30
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.30
  dmi.ec.firmware.release: 1.29
  dmi.modalias: 
dmi:bvnInsydeCorp.:bvrV1.30:bd01/13/2025:br1.30:efr1.29:svnAcer:pnAspireA515-57:pvrV1.30:rvnADL:rnGanymede_ADU:rvrV1.30:cvnAcer:ct10:cvrV1.30:sku0000000000000000:
  dmi.product.family: Aspire 5
  dmi.product.name: Aspire A515-57
  dmi.product.sku: 0000000000000000
  dmi.product.version: V1.30
  dmi.sys.vendor: Acer

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