Bug 1564859

Summary: rtl8723be_pci crash on kernel 4.16 on HP HP Notebook/81E1, BIOS F.11 07/14/2016
Product: [Fedora] Fedora Reporter: Johannes Hofmann <rhasti>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 28CC: airlied, bskeggs, ewk, hdegoede, ichavero, itamar, jarodwilson, jglisse, john.j5live, jonathan, josef, kernel-maint, linville, mchehab, mjg59, steved
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2018-04-14 16:06:24 UTC Type: Bug
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archive of abrt oops none

Description Johannes Hofmann 2018-04-08 10:23:21 UTC
Description of problem:
WLAN (rtl8723be) not working with Kernel 4.16 on Fedora 28 beta.


Version-Release number of selected component (if applicable):
kernel-4.16.0-300.fc28.x86_64


How reproducible:
Every time i boot the driver crashes 

Steps to Reproduce:
1. Happens on every boot


Actual results:
kernel bug hits and wlan driver does not work

Expected results:
Working WLAN

Additional info:
Base Board Information
        Manufacturer: HP
        Product Name: 81E1
        Version: KBC Version 71.15
        Serial Number: PFXFE00WB40FOH



#### Output with kernel 4.15.14-300.fc27.x86_64 booted
[root@flummi ~]# lspci -s 02:00.0  -v
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
        Subsystem: Hewlett-Packard Company Device 81c1
        Flags: bus master, fast devsel, latency 0, IRQ 18
        I/O ports at 2000 [size=256]
        Memory at 91200000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 00-23-b7-fe-ff-4c-e0-00
        Capabilities: [150] Latency Tolerance Reporting
        Capabilities: [158] L1 PM Substates
        Kernel driver in use: rtl8723be
        Kernel modules: rtl8723be

Comment 1 Johannes Hofmann 2018-04-08 10:26:06 UTC
With Fedora 27 and kernel 4.15 the WLAN device is working when set ant_sel=2 module option.

Comment 2 Johannes Hofmann 2018-04-08 10:48:03 UTC
Created attachment 1418874 [details]
archive of abrt oops

Comment 3 Johannes Hofmann 2018-04-14 16:06:24 UTC
Module is not in the kernel but from outside repository.
Fixed it by getting the latest Sources. Sorry for the hassle.