Bug 206607 - 3168NGW iwlwifi disconnects, HW error, resetting
Summary: 3168NGW iwlwifi disconnects, HW error, resetting
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless-intel (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: Default virtual assignee for network-wireless-intel
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-02-20 12:06 UTC by Paul Größel
Modified: 2020-08-17 20:38 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.5.4-arch1-1
Subsystem:
Regression: No
Bisected commit-id:


Attachments
dmesg dump (77.17 KB, text/plain)
2020-02-20 12:06 UTC, Paul Größel
Details
second dmesg dump with 2 hw resets (18.18 KB, text/plain)
2020-02-22 13:16 UTC, Paul Größel
Details

Description Paul Größel 2020-02-20 12:06:22 UTC
Created attachment 287521 [details]
dmesg dump

I am on Arch Linux.

Hardware: Acer Aspire A515-51  
lspci:
02:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)

firmware-version: 29.163394017.0
arch firmware package: linux-firmware 20200204.b791e15-1


Wifi connection sporadically disconnects, presumably under heavy load and then tries to reconnect to the AP, sometimes immediately, sometimes not for some minutes. Error mostly occours while downloading larger files. Simple SSH connection seems not to trigger that error, respectively I did not encounter...

Produces Error message:

[ 3015.033945] iwlwifi 0000:02:00.0: Error sending STATISTICS_CMD: time out after 2000ms.
[ 3015.033955] iwlwifi 0000:02:00.0: Current CMD queue read_ptr 171 write_ptr 172
[ 3015.283952] iwlwifi 0000:02:00.0: HW error, resetting before reading
[ 3015.290731] iwlwifi 0000:02:00.0: Loaded firmware version: 29.163394017.0
[ 3015.290734] iwlwifi 0000:02:00.0: 0x00000000 | ADVANCED_SYSASSERT          
[ 3015.290735] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status0
[ 3015.290736] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[ 3015.290737] iwlwifi 0000:02:00.0: 0x00000000 | branchlink2
[ 3015.290738] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink1
and so on...
See attachment for details.
Comment 1 Paul Größel 2020-02-22 13:16:44 UTC
Created attachment 287553 [details]
second dmesg dump with 2 hw resets
Comment 2 Paul Größel 2020-02-22 13:31:32 UTC
I downgraded the firmware by renaming 

iwlwifi-3168-27
iwlwifi-3168-29

to 

iwlwifi-3168-27.ucodeBAK
iwlwifi-3168-29.ucodeBAK

and its now using iwlwifi-3168-22.ucode
(firmware-version: 22.391740.0)

No hw restarts since an hour or so, even with heavy traffic.
Comment 3 Paul Größel 2020-02-22 19:37:41 UTC
cheered too soon! It also crashed with the 22 firmware. Same error message.

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