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#51 2025-08-20 19:44:56

gromit
Administrator
From: Germany
Registered: 2024-02-10
Posts: 1,327
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r495.gcd6d6de-1-x86_64.pkg.tar.zst

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#52 2025-08-20 20:04:42

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

gromit wrote:

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r495.gcd6d6de-1-x86_64.pkg.tar.zst

Wifi does NOT work with this version.

❯ uname -r
6.15.0-rc2-1-mainline-00495-gcd6d6de694e2

~
❯ sudo dmesg | grep iwlwifi
[   18.663693] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[   18.676281] iwlwifi 0000:03:00.0: Detected crf-id 0xa5a5a5a1, cnv-id 0xa5a5a5a1 wfpm id 0xa5a5a5a1
[   18.676327] iwlwifi 0000:03:00.0: PCI dev 0084/1315, rev=0x6c, rfid=0xd55555d5
[   18.676333] iwlwifi: No config found for PCI dev 0084/1315, rev=0x6c, rfid=0xd55555d5
[   18.677138] iwlwifi 0000:03:00.0: probe with driver iwlwifi failed with error -22

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#53 2025-08-20 20:43:54

gromit
Administrator
From: Germany
Registered: 2024-02-10
Posts: 1,327
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r490.g1fb053d-1-x86_64.pkg.tar.zst

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#54 2025-08-20 20:47:48

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

gromit wrote:

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r490.g1fb053d-1-x86_64.pkg.tar.zst

Wifi did NOT work with this build.

❯ uname -r
6.15.0-rc2-1-mainline-00490-g1fb053d9876f

~
❯ sudo dmesg | grep iwlwifi
[   13.273946] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[   13.284594] iwlwifi 0000:03:00.0: Detected crf-id 0xa5a5a5a1, cnv-id 0xa5a5a5a1 wfpm id 0xa5a5a5a1
[   13.284634] iwlwifi 0000:03:00.0: PCI dev 0084/1315, rev=0x6c, rfid=0xd55555d5
[   13.284641] iwlwifi: No config found for PCI dev 0084/1315, rev=0x6c, rfid=0xd55555d5
[   13.284723] iwlwifi 0000:03:00.0: probe with driver iwlwifi failed with error -22

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#55 2025-08-20 21:05:00

gromit
Administrator
From: Germany
Registered: 2024-02-10
Posts: 1,327
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r488.g220c01a-1-x86_64.pkg.tar.zst

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#56 2025-08-20 21:08:40

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

gromit wrote:

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r488.g220c01a-1-x86_64.pkg.tar.zst

Wifi works in this version.

❯ uname -r
6.15.0-rc2-1-mainline-00488-g220c01a6fda5

~
❯ sudo dmesg | grep iwlwifi
[   14.760628] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[   14.783216] iwlwifi 0000:03:00.0: Detected crf-id 0xa5a5a5a1, cnv-id 0xa5a5a5a1 wfpm id 0xa5a5a5a1
[   14.783232] iwlwifi 0000:03:00.0: PCI dev 0084/1315, rev=0x6c, rfid=0xd55555d5
[   14.783239] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN
[   14.788631] iwlwifi 0000:03:00.0: loaded firmware version 39.31.5.1 build 35138 1000-5.ucode op_mode iwldvm
[   15.063913] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
[   15.063921] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[   15.063924] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[   15.063927] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[   16.331290] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   16.390325] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   16.464986] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   16.523251] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   25.751233] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   25.810152] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3

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#57 2025-08-20 21:22:59

gromit
Administrator
From: Germany
Registered: 2024-02-10
Posts: 1,327
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r489.g2870c09-1-x86_64.pkg.tar.zst

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#58 2025-08-20 21:25:48

loqs
Member
Registered: 2014-03-06
Posts: 18,631

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

From the few commits left in 1fb053d wifi: iwlwifi: cfg: remove unnecessary configs is it the wrong mask to match 0x0085:0xC220:

 	IWL_DEV_INFO(iwl6005_non_n_cfg, iwl6005_2abg_name,
-		     DEVICE(0x0085), SUBDEV(0x1316)),
-	IWL_DEV_INFO(iwl6005_n_cfg, iwl6005_2agn_sff_name,
-		     DEVICE(0x0082), SUBDEV(0xC020)),
-	IWL_DEV_INFO(iwl6005_n_cfg, iwl6005_2agn_sff_name,
-		     DEVICE(0x0085), SUBDEV(0xC220)),
+		     DEVICE(0x0085), SUBDEV_MASKED(0x6, 0xF)),
+
 	IWL_DEV_INFO(iwl6005_n_cfg, iwl6005_2agn_sff_name,

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#59 2025-08-20 21:26:30

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

gromit wrote:

Please try:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.15.rc2.r489.g2870c09-1-x86_64.pkg.tar.zst

Wifi works with that kernel.

❯ uname -r
6.15.0-rc2-1-mainline-00489-g2870c0951868

~
❯ sudo dmesg | grep iwlwifi
[   12.190583] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[   12.200713] iwlwifi 0000:03:00.0: Detected crf-id 0xa5a5a5a1, cnv-id 0xa5a5a5a1 wfpm id 0xa5a5a5a1
[   12.200752] iwlwifi 0000:03:00.0: PCI dev 0084/1315, rev=0x6c, rfid=0xd55555d5
[   12.200759] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN
[   12.206417] iwlwifi 0000:03:00.0: loaded firmware version 39.31.5.1 build 35138 1000-5.ucode op_mode iwldvm
[   12.462038] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
[   12.462046] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[   12.462048] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[   12.462051] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[   13.803207] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   13.864142] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   13.942843] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   14.003887] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   20.467803] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3
[   20.537001] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3

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#60 2025-08-20 21:28:02

gromit
Administrator
From: Germany
Registered: 2024-02-10
Posts: 1,327
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

 git bisect good
1fb053d9876f2a580a5e55833dfdee5a361efba5 is the first bad commit
commit 1fb053d9876f2a580a5e55833dfdee5a361efba5
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Fri May 2 15:56:28 2025 +0300

    wifi: iwlwifi: cfg: remove unnecessary configs
    
    Since there are two bytes hole in struct iwl_dev_info, add
    a subdev_mask to match with. Also, since the PCI IDs list
    needs to match first, and the dev-info list is matched from
    the bottom up, remove unnecessary entries.
    
    With this, even though there are new entries from previous
    changes, the overall size is slightly reduced.
    
    Signed-off-by: Johannes Berg <johannes.berg@intel.com>
    Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
    Link: https://patch.msgid.link/20250502155404.689f9b335cbe.I66f1344b6ac7aa3665696637c97fa843c2307423@changeid

 drivers/net/wireless/intel/iwlwifi/iwl-config.h |   1 +
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c   | 669 +++++++++++++------------------------------------------------------------------
 2 files changed, 111 insertions(+), 559 deletions(-)
git bisect start
# status: waiting for both good and bad commits
# bad: [038d61fd642278bab63ee8ef722c50d10ab01e8f] Linux 6.16
git bisect bad 038d61fd642278bab63ee8ef722c50d10ab01e8f
# good: [0ff41df1cb268fc69e703a08a57ee14ae967d0ca] Linux 6.15
git bisect good 0ff41df1cb268fc69e703a08a57ee14ae967d0ca
# bad: [43db1111073049220381944af4a3b8a5400eda71] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
git bisect bad 43db1111073049220381944af4a3b8a5400eda71
# good: [a61e26038143727d9b0f1bc01b0370f77f2ad7e4] Merge tag 'media/v6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
git bisect good a61e26038143727d9b0f1bc01b0370f77f2ad7e4
# good: [0c1494015fea0935fbf6cd9d99c008fcbe1e4165] Merge tag 'core-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 0c1494015fea0935fbf6cd9d99c008fcbe1e4165
# good: [a9e6060bb2a6cae6d43a98ec0794844ad01273d3] Merge tag 'sound-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
git bisect good a9e6060bb2a6cae6d43a98ec0794844ad01273d3
# good: [3702a515edec515fcc7e085053da636fefac88d6] Merge tag 'acpi-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
git bisect good 3702a515edec515fcc7e085053da636fefac88d6
# good: [3de572fe2189a4a0bd80295e1f478401e739498e] media: omap3isp: use sgtable-based scatterlist wrappers
git bisect good 3de572fe2189a4a0bd80295e1f478401e739498e
# good: [3b66e6b3c098646f75c54e269dd963e2281c555c] Merge tag 'cgroup-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
git bisect good 3b66e6b3c098646f75c54e269dd963e2281c555c
# good: [48cfc5791d83b630fd90a1b64a15a6d09c186f99] Merge tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
git bisect good 48cfc5791d83b630fd90a1b64a15a6d09c186f99
# good: [d35c64eccf3b15a38a168a8c36096b960e8fbc1d] media: rkvdec: Add get_image_fmt ops
git bisect good d35c64eccf3b15a38a168a8c36096b960e8fbc1d
# good: [1bc8c83af962a7f0e52c1ee254acbcb1d9204a5e] Merge tag 'lsm-pr-20250527' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
git bisect good 1bc8c83af962a7f0e52c1ee254acbcb1d9204a5e
# good: [5d7ddc59b3d89b724a5aa8f30d0db94ff8d2d93f] selinux: reduce path walk overhead
git bisect good 5d7ddc59b3d89b724a5aa8f30d0db94ff8d2d93f
# good: [47cf96fbe393839b125a9b694a8cfdd3f4216baa] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
git bisect good 47cf96fbe393839b125a9b694a8cfdd3f4216baa
# good: [cefe6e131cc4f032110efe1687295e133f3d5964] Revert "ipv6: sr: switch to GFP_ATOMIC flag to allocate memory during seg6local LWT setup"
git bisect good cefe6e131cc4f032110efe1687295e133f3d5964
# bad: [fdb061195f53e5b6d12595fc32a1a9c1130f0c23] Merge tag 'ipsec-next-2025-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
git bisect bad fdb061195f53e5b6d12595fc32a1a9c1130f0c23
# bad: [8dc8340c197854bdd7aaa4a1b0f1a75646667596] wifi: ath12k: handle scan link during vdev create
git bisect bad 8dc8340c197854bdd7aaa4a1b0f1a75646667596
# bad: [7225a6a2452267396d0fc5b7b8d180fe4ff80c7f] wifi: iwlwifi: cfg: add FM RF config
git bisect bad 7225a6a2452267396d0fc5b7b8d180fe4ff80c7f
# bad: [995727b11307115246e3470e1cbcfb5740318509] wifi: iwlwifi: pcie: remove constant wdg_timeout
git bisect bad 995727b11307115246e3470e1cbcfb5740318509
# good: [a925fe703d68d775df92da828d921a08bfea3f01] wifi: iwlwifi: pcie: add entry for Killer AX1650i on AdL-P
git bisect good a925fe703d68d775df92da828d921a08bfea3f01
# good: [35ac275ebe0c4ad274072df8e0cf8d1fb9713116] wifi: iwlwifi: cfg: finish config split
git bisect good 35ac275ebe0c4ad274072df8e0cf8d1fb9713116
# bad: [cd6d6de694e23ff0cba0af6680b69f361aa328dd] wifi: iwlwifi: pcie: move ME check data to pcie
git bisect bad cd6d6de694e23ff0cba0af6680b69f361aa328dd
# bad: [1fb053d9876f2a580a5e55833dfdee5a361efba5] wifi: iwlwifi: cfg: remove unnecessary configs
git bisect bad 1fb053d9876f2a580a5e55833dfdee5a361efba5
# good: [220c01a6fda512509ca2fe6c14778a39be2a7f71] wifi: iwlwifi: tests: check for duplicate name strings
git bisect good 220c01a6fda512509ca2fe6c14778a39be2a7f71
# good: [2870c095186896540d64e947fa009bba08dd6bc8] wifi: iwlwifi: cfg: reduce mac_type to u8
git bisect good 2870c095186896540d64e947fa009bba08dd6bc8
# first bad commit: [1fb053d9876f2a580a5e55833dfdee5a361efba5] wifi: iwlwifi: cfg: remove unnecessary configs

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#61 2025-08-21 05:52:47

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

loqs wrote:

From the few commits left in 1fb053d wifi: iwlwifi: cfg: remove unnecessary configs is it the wrong mask to match 0x0085:0xC220:

 	IWL_DEV_INFO(iwl6005_non_n_cfg, iwl6005_2abg_name,
-		     DEVICE(0x0085), SUBDEV(0x1316)),
-	IWL_DEV_INFO(iwl6005_n_cfg, iwl6005_2agn_sff_name,
-		     DEVICE(0x0082), SUBDEV(0xC020)),
-	IWL_DEV_INFO(iwl6005_n_cfg, iwl6005_2agn_sff_name,
-		     DEVICE(0x0085), SUBDEV(0xC220)),
+		     DEVICE(0x0085), SUBDEV_MASKED(0x6, 0xF)),
+
 	IWL_DEV_INFO(iwl6005_n_cfg, iwl6005_2agn_sff_name,

For my card, the 0084/1315, this is the relevant section and does not seem right:

 /* 1000 Series WiFi */
 	IWL_DEV_INFO(iwl1000_bgn_cfg, iwl1000_bgn_name,
-		     DEVICE(0x0083), SUBDEV(0x1205)),
-	IWL_DEV_INFO(iwl1000_bgn_cfg, iwl1000_bgn_name,
-		     DEVICE(0x0083), SUBDEV(0x1305)),
-	IWL_DEV_INFO(iwl1000_bgn_cfg, iwl1000_bgn_name,
-		     DEVICE(0x0083), SUBDEV(0x1225)),
-	IWL_DEV_INFO(iwl1000_bgn_cfg, iwl1000_bgn_name,
-		     DEVICE(0x0083), SUBDEV(0x1325)),
-	IWL_DEV_INFO(iwl1000_bgn_cfg, iwl1000_bgn_name,
-		     DEVICE(0x0084), SUBDEV(0x1215)),
-	IWL_DEV_INFO(iwl1000_bgn_cfg, iwl1000_bgn_name,
-		     DEVICE(0x0084), SUBDEV(0x1315)),
+		     DEVICE(0x0083), SUBDEV_MASKED(0x5, 0xF)),
 	IWL_DEV_INFO(iwl1000_bg_cfg, iwl1000_bg_name,
-		     DEVICE(0x0083), SUBDEV(0x1206)),
-	IWL_DEV_INFO(iwl1000_bg_cfg, iwl1000_bg_name,
-		     DEVICE(0x0083), SUBDEV(0x1306)),
-	IWL_DEV_INFO(iwl1000_bg_cfg, iwl1000_bg_name,
-		     DEVICE(0x0083), SUBDEV(0x1226)),
-	IWL_DEV_INFO(iwl1000_bg_cfg, iwl1000_bg_name,
-		     DEVICE(0x0083), SUBDEV(0x1326)),
+		     DEVICE(0x0083), SUBDEV_MASKED(0x6, 0xF)),
 	IWL_DEV_INFO(iwl1000_bg_cfg, iwl1000_bg_name,
 		     DEVICE(0x0084), SUBDEV(0x1216)),
 	IWL_DEV_INFO(iwl1000_bg_cfg, iwl1000_bg_name,

Not exactly sure what the correct fix would be here but it looks like they either forgot a "SUBDEV_MASKED" for the 0x0084 cards they removed. Could be the "DEVICE(0x0083), SUBDEV_MASKED(0x5, 0xF))," was meant to be "DEVICE(0x0084), SUBDEV_MASKED(0x5, 0xF)),", but that is hard for me to say for sure. I will provide details to the Kernel bug tracker and hope somebody with more knowledge about the code, can help take a look.

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#62 2025-08-21 06:14:30

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

Just as an update, I got the following response from Intel on the kernel bug I created (https://bugzilla.kernel.org/show_bug.cgi?id=220477):

Thank you!

People are on vacation right now, but we'll fix this shortly.
Thanks!

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#63 2025-08-26 17:26:58

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

There are now a patch file on https://bugzilla.kernel.org/show_bug.cgi?id=220477 for my specific issue "iwlwifi: No config found for PCI dev 0084/1315". I have verified the fix and it works but it does not solve the problem with potential other cards like "pci dev 0085/c220" which is what this thread are about.

Sorry for now having mention that card in the issue I created. Hope they will also fix that one (and potential other cards they might have skipped by accident with this update).

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#64 2025-08-27 15:46:27

loqs
Member
Registered: 2014-03-06
Posts: 18,631

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

0084:1315 patch has been posted for review https://lore.kernel.org/linux-wireless/ … @changeid/.
0085:C220 now has a patch on the kernel bugzilla https://bugzilla.kernel.org/attachment.cgi?id=308561.
Edit:
Both commits are now in the wireless tree waiting to pulled to netdev https://lore.kernel.org/linux-wireless/ … tions.net/ from there to mainline then they can be queued for stable.
Edit2:
Both fixes landed in 6.16.6, 79be735 wifi: iwlwifi: cfg: restore some 1000 series configs and b9b9e95 wifi: iwlwifi: cfg: add back more lost PCI IDs.

Last edited by loqs (2025-09-09 20:25:39)

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#65 2025-09-11 20:07:10

julemand101
Member
From: Aarhus, Denmark
Registered: 2005-11-25
Posts: 47
Website

Re: 5.16.0 seems to break my Taylor Peak wifi (iwlwifi)

Linux kernel 6.16.6 and upcoming 6.17 contains the needed fix for my card to be detected again. After installing 6.16.6 my card are yet again detected. Thanks Intel for fixing this.

Now, I then get some weird firmware related issues which randomly kills my Wifi but I have yet to have the time to dig deeper into what might cause those issues. Will create another thread about this issue it needed.

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