[BUG] regular scan timed out

[BUG] regular scan timed out

[Lukas Redlinger]

Hi there,

Debian 10 testing, Intel 8265, firmware 36.9f0a2d68.0

2 interfaces on 1 phy: 1 managed, 1 AP

background scan configured: bgscan="simple:1:-70:900"

------------

phy#0
     Interface hotspot
         ifindex 11
         wdev 0x4
         addr a0:a4:c5:96:b5:ec
         ssid yyyyyy
         type AP
         channel 1 (2412 MHz), width: 20 MHz (no HT), center1: 2412 MHz
         txpower 22.00 dBm

     Unnamed/non-netdev interface
         wdev 0x2
         addr a0:a4:c5:96:b5:eb
         type P2P-device
         txpower 0.00 dBm

     Interface wlp1s0
         ifindex 7
         wdev 0x1
         addr a0:a4:c5:96:b5:ea
         ssid xxxxxx
         type managed
         channel 36 (5180 MHz), width: 80 MHz, center1: 5210 MHz

----------

[  715.890990] iwlwifi 0000:01:00.0: regular scan timed out
[  715.891047] iwlwifi 0000:01:00.0: Microcode SW error detected. 
Restarting 0x2000000.
[  715.891172] iwlwifi 0000:01:00.0: Start IWL Error Log Dump:

[  715.891175] iwlwifi 0000:01:00.0: Status: 0x00000100, count: 6
[  715.891177] iwlwifi 0000:01:00.0: Loaded firmware version: 36.9f0a2d68.0
[  715.891180] iwlwifi 0000:01:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[  715.891182] iwlwifi 0000:01:00.0: 0x000002A0 | trm_hw_status0
[  715.891184] iwlwifi 0000:01:00.0: 0x00000000 | trm_hw_status1
[  715.891186] iwlwifi 0000:01:00.0: 0x0002485C | branchlink2
[  715.891188] iwlwifi 0000:01:00.0: 0x0003A7CA | interruptlink1
[  715.891190] iwlwifi 0000:01:00.0: 0x00000868 | interruptlink2
[  715.891192] iwlwifi 0000:01:00.0: 0x00000000 | data1
[  715.891195] iwlwifi 0000:01:00.0: 0x00000080 | data2
[  715.891197] iwlwifi 0000:01:00.0: 0x07830000 | data3
[  715.891199] iwlwifi 0000:01:00.0: 0x34C0F92B | beacon time
[  715.891201] iwlwifi 0000:01:00.0: 0xB72786AB | tsf low
[  715.891203] iwlwifi 0000:01:00.0: 0x000002C5 | tsf hi
[  715.891205] iwlwifi 0000:01:00.0: 0x00000000 | time gp1
[  715.891207] iwlwifi 0000:01:00.0: 0x01E94EF8 | time gp2
[  715.891209] iwlwifi 0000:01:00.0: 0x00000001 | uCode revision type
[  715.891211] iwlwifi 0000:01:00.0: 0x00000024 | uCode version major
[  715.891213] iwlwifi 0000:01:00.0: 0x9F0A2D68 | uCode version minor
[  715.891215] iwlwifi 0000:01:00.0: 0x00000230 | hw version
[  715.891217] iwlwifi 0000:01:00.0: 0x00489000 | board version
[  715.891219] iwlwifi 0000:01:00.0: 0x0AA1001C | hcmd
[  715.891221] iwlwifi 0000:01:00.0: 0x00022000 | isr0
[  715.891223] iwlwifi 0000:01:00.0: 0x00800000 | isr1
[  715.891225] iwlwifi 0000:01:00.0: 0x08001802 | isr2
[  715.891227] iwlwifi 0000:01:00.0: 0x00417CC0 | isr3
[  715.891229] iwlwifi 0000:01:00.0: 0x00000000 | isr4
[  715.891231] iwlwifi 0000:01:00.0: 0x0AA1001C | last cmd Id
[  715.891233] iwlwifi 0000:01:00.0: 0x00000000 | wait_event
[  715.891235] iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
[  715.891237] iwlwifi 0000:01:00.0: 0x00018020 | l2p_duration
[  715.891239] iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
[  715.891241] iwlwifi 0000:01:00.0: 0x00000080 | l2p_addr_match
[  715.891243] iwlwifi 0000:01:00.0: 0x0000000D | lmpm_pmg_sel
[  715.891245] iwlwifi 0000:01:00.0: 0x04120134 | timestamp
[  715.891247] iwlwifi 0000:01:00.0: 0x003490A0 | flow_handler
[  715.891298] iwlwifi 0000:01:00.0: 0x00000000 | ADVANCED_SYSASSERT
[  715.891300] iwlwifi 0000:01:00.0: 0x00000000 | umac branchlink1
[  715.891302] iwlwifi 0000:01:00.0: 0x00000000 | umac branchlink2
[  715.891304] iwlwifi 0000:01:00.0: 0x00000000 | umac interruptlink1
[  715.891306] iwlwifi 0000:01:00.0: 0x00000000 | umac interruptlink2
[  715.891308] iwlwifi 0000:01:00.0: 0x00000000 | umac data1
[  715.891310] iwlwifi 0000:01:00.0: 0x00000000 | umac data2
[  715.891312] iwlwifi 0000:01:00.0: 0x00000000 | umac data3
[  715.891314] iwlwifi 0000:01:00.0: 0x00000000 | umac major
[  715.891316] iwlwifi 0000:01:00.0: 0x00000000 | umac minor
[  715.891318] iwlwifi 0000:01:00.0: 0x00000000 | frame pointer
[  715.891320] iwlwifi 0000:01:00.0: 0x00000000 | stack pointer
[  715.891322] iwlwifi 0000:01:00.0: 0x00000000 | last host cmd
[  715.891324] iwlwifi 0000:01:00.0: 0x00000000 | isr status reg
[  715.891330] ieee80211 phy1: Hardware restart was requested


Let me know if I should provide any further information.

Thanks,
Lukas

Re: [BUG] regular scan timed out

[Emmanuel Grumbach]

>
> Hi there,
>
> Debian 10 testing, Intel 8265, firmware 36.9f0a2d68.0
>
> 2 interfaces on 1 phy: 1 managed, 1 AP

Fun, and you expect the AP to send NOAs when it goes away? (This is
what will happen I believe).
You can open a bug on bugzilla.kernel.org, refer to [1] to do so.
Please look at the 'Firmware debugging' section in [2] and provide a
firmware dump with the debug firmware you'll find there.
Note that this involves private data collection, you can read the
privacy notice [3] for further information.

Keep in mind that this is not exactly a common scenario and that
impacts the priority of the bug...

> ----------
>
> [  715.890990] iwlwifi 0000:01:00.0: regular scan timed out

I am not really surprised although this should work I supposed

> [  715.891047] iwlwifi 0000:01:00.0: Microcode SW error detected.
> Restarting 0x2000000.
> [  715.891172] iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
>
> [  715.891175] iwlwifi 0000:01:00.0: Status: 0x00000100, count: 6
> [  715.891177] iwlwifi 0000:01:00.0: Loaded firmware version: 36.9f0a2d68.0
> [  715.891180] iwlwifi 0000:01:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN

This event will automatically create a firmware dump.

[1] - https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging#how_to_report
[2] - https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging#firmware_debugging
[3] - https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging#privacy_aspects