Re: IWL Error Log Dump since 6.17.0-rc5

[Karsten Tausche <ktao.oss@posteo.org>]

Hi,

I can confirm the same issue and resolution on a similar card "Intel
Corporation Wireless 7265 (rev 59)". I did not test rc5, but rc4 was
working and rc6 broken for me.

On Fri, Sep 12, 2025 at 09:44:21PM +0800, David Wang wrote:
> 
> At 2025-09-10 16:31:33, "Johannes Berg" <johannes@sipsolutions.net> wrote:
> >On Wed, 2025-09-10 at 15:47 +0800, David Wang wrote:
> >> Hi, 
> >> 
> >> I think those error dump is introduced by commit 586e3cb33ba6890054b95aa0ade0a165890efabd("wifi: iwlwifi: fix byte count table for old devices")
> >> 
> >> My wireless pcie card has device_family 15 which is less than IWL_DEVICE_FAMILY_9000, and the changes in the commit have changed the behavior for my devices.
> >> 
> >> -       if (trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_AX210)
> >> +       if (trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_9000 &&
> >> +           trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_AX210)
> >>                 len = DIV_ROUND_UP(len, 4);
> >
> >I think I just got confused, and that 9000 should be 7000. Presumably
> >that'd work for you, I'll send a patch.
> >
> >johannes
> 
> 
> Hi, 
> 
> My system has been run for days and no IWL error dumps & reset happened.
> I think I can confirm that my wireless card needs the length adjustment.
> 
> Some information about my cards:
> 
> [    5.067265] iwlwifi 0000:21:00.0: enabling device (0000 -> 0002)
> [    5.068798] iwlwifi 0000:21:00.0: Detected crf-id 0x0, cnv-id 0x0 wfpm id 0x0
> [    5.068809] iwlwifi 0000:21:00.0: PCI dev 08b1/c070, rev=0x144, rfid=0xd55555d5
> [    5.068813] iwlwifi 0000:21:00.0: device family: 15  <-- 
> [    5.068816] iwlwifi 0000:21:00.0: Detected Intel(R) Dual Band Wireless AC 7260
> [    5.075593] iwlwifi 0000:21:00.0: loaded firmware version 17.bfb58538.0 7260-17.ucode op_mode iwlmvm
> 
> $ lspci
> ...
> 21:00.0 Network controller: Intel Corporation Wireless 7260 (rev bb)
> ...
> 
> 
> My device match the config in drivers/net/wireless/intel/iwlwifi/pcie/drv.c:
> 
> 263         {IWL_PCI_DEVICE(0x08B1, 0xC070, iwl7000_mac_cfg)},
> 
> iwl7000_mac_cfg is defined as:
> 
>  88 const struct iwl_mac_cfg iwl7000_mac_cfg = { 
>  89         .device_family = IWL_DEVICE_FAMILY_7000, 
>  90         .base = &iwl7000_base,
>  91 };
> 
> And indeed, it is IWL_DEVICE_FAMILY_7000
> 

Early kernel logs for my chip below. 095b/5210 is matching the same
config iwl7000_mac_cfg as above.

iwlwifi 0000:03:00.0: Detected crf-id 0x0, cnv-id 0x0 wfpm id 0x0
iwlwifi 0000:03:00.0: PCI dev 095b/5210, rev=0x210, rfid=0xd55555d5
iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless-AC 7265

Snippet of failure logs on v6.17-rc6:

iwlwifi 0000:03:00.0: Microcode SW error detected.  Restarting 0x2000000.
iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
iwlwifi 0000:03:00.0: Transport status: 0x0000004A, valid: 6
iwlwifi 0000:03:00.0: Loaded firmware version: 29.f2390aa8.0 7265D-29.ucode
iwlwifi 0000:03:00.0: 0x00001030 | ADVANCED_SYSASSERT
iwlwifi 0000:03:00.0: 0x00800233 | trm_hw_status0
iwlwifi 0000:03:00.0: 0x00000000 | trm_hw_status1
iwlwifi 0000:03:00.0: 0x00043D6C | branchlink2
iwlwifi 0000:03:00.0: 0x0004B002 | interruptlink1
...

$ lscpi
...
03:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
...


Thanks,
Karsten