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Old 06-30-2021, 08:45 PM   #1
Sanvido
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Registered: Aug 2019
Location: Campinas - SP - Brazil
Distribution: Slackware
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Wifi dropping - intel centrino N 2230 - slackware current, kernel 5.12.13

Hello guys,

This is my first post here in LQ. English is not my native language and I am from humananities (forgive me for any silly question).

I am using slackware-current with kernel huge 5.12.13. Since the weekend, I am experiencing wifi dropping. I am connecting to my network with networkmanager and I am using ipv4 (I disabled ipv6). I will post below all I think it is necessary. If, and probably I will, miss any information, please ask.


lspci
Code:
Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
hwinfo --network
Code:
26: None 00.0: 1070a WLAN
  [Created at net.126]
  Unique ID: AYEt.QXn1l67RSa1
  Parent ID: y9sn.QTs+QvrZTf8
  SysFS ID: /class/net/wlan0
  SysFS Device Link: /devices/pci0000:00/0000:00:1c.1/0000:02:00.0
  Hardware Class: network interface
  Model: "WLAN network interface"
  Driver: "iwlwifi"
  Driver Modules: "iwlwifi"
  Device File: wlan0
  HW Address: 84:a6:c8:7f:fc:6a
  Permanent HW Address: 84:a6:c8:7f:fc:6a
  Link detected: yes
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #4 (Network controller)
dmesg -l err
Code:
[   13.387093] Bluetooth: hci0: unexpected event for opcode 0x0000
[  321.724594] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x2000000.
[  321.724608] iwlwifi 0000:02:00.0: Loaded firmware version: 18.168.6.1 2030-6.ucode
[  321.724777] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[  321.724779] iwlwifi 0000:02:00.0: Status: 0x0000004C, count: 6
[  321.724783] iwlwifi 0000:02:00.0: 0x0000003B | ADVANCED_SYSASSERT
[  321.724787] iwlwifi 0000:02:00.0: 0x000021E4 | uPc
[  321.724789] iwlwifi 0000:02:00.0: 0x000021DA | branchlink1
[  321.724792] iwlwifi 0000:02:00.0: 0x000021DA | branchlink2
[  321.724794] iwlwifi 0000:02:00.0: 0x0000EC7A | interruptlink1
[  321.724797] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
[  321.724799] iwlwifi 0000:02:00.0: 0x00000000 | data1
[  321.724801] iwlwifi 0000:02:00.0: 0x000000C1 | data2
[  321.724804] iwlwifi 0000:02:00.0: 0x0000008B | line
[  321.724806] iwlwifi 0000:02:00.0: 0x96804FA7 | beacon time
[  321.724809] iwlwifi 0000:02:00.0: 0xE32DA059 | tsf low
[  321.724811] iwlwifi 0000:02:00.0: 0x00000017 | tsf hi
[  321.724813] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[  321.724816] iwlwifi 0000:02:00.0: 0x10350201 | time gp2
[  321.724818] iwlwifi 0000:02:00.0: 0x00000000 | time gp3
[  321.724820] iwlwifi 0000:02:00.0: 0x754312A8 | uCode version
[  321.724823] iwlwifi 0000:02:00.0: 0x000000C8 | hw version
[  321.724825] iwlwifi 0000:02:00.0: 0x00C80B08 | board version
[  321.724828] iwlwifi 0000:02:00.0: 0x0217001C | hcmd
[  321.724830] iwlwifi 0000:02:00.0: 0xAFF63802 | isr0
[  321.724833] iwlwifi 0000:02:00.0: 0x0189F800 | isr1
[  321.724835] iwlwifi 0000:02:00.0: 0x00000E1F | isr2
[  321.724837] iwlwifi 0000:02:00.0: 0x01420080 | isr3
[  321.724840] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[  321.724842] iwlwifi 0000:02:00.0: 0x10000112 | isr_pref
[  321.724844] iwlwifi 0000:02:00.0: 0x00029B36 | wait_event
[  321.724847] iwlwifi 0000:02:00.0: 0x000000B4 | l2p_control
[  321.724849] iwlwifi 0000:02:00.0: 0x0000324E | l2p_duration
[  321.724851] iwlwifi 0000:02:00.0: 0x0000000F | l2p_mhvalid
[  321.724854] iwlwifi 0000:02:00.0: 0x001050C6 | l2p_addr_match
[  321.724856] iwlwifi 0000:02:00.0: 0x00000005 | lmpm_pmg_sel
[  321.724858] iwlwifi 0000:02:00.0: 0x13011054 | timestamp
[  321.724861] iwlwifi 0000:02:00.0: 0x00007080 | flow_handler
[  321.724950] iwlwifi 0000:02:00.0: Start IWL Event Log Dump: display last 20 entries
[  321.724973] iwlwifi 0000:02:00.0: EVT_LOGT:0271901410:0x00000000:0301
[  321.725009] iwlwifi 0000:02:00.0: EVT_LOGT:0271901621:0x00040000:1243
[  321.725045] iwlwifi 0000:02:00.0: EVT_LOGT:0271901723:0x00000000:0301
[  321.725065] iwlwifi 0000:02:00.0: EVT_LOGT:0271902533:0x00040000:1243
[  321.725084] iwlwifi 0000:02:00.0: EVT_LOGT:0271902822:0x00000000:0301
[  321.725104] iwlwifi 0000:02:00.0: EVT_LOGT:0271903175:0x00040000:1243
[  321.725124] iwlwifi 0000:02:00.0: EVT_LOGT:0271903293:0x00000000:0301
[  321.725137] iwlwifi 0000:02:00.0: EVT_LOGT:0271903486:0x00002000:1243
[  321.725152] iwlwifi 0000:02:00.0: EVT_LOGT:0271903607:0x000000b4:0303
[  321.725171] iwlwifi 0000:02:00.0: EVT_LOGT:0271903647:0x000000c4:0322
[  321.725191] iwlwifi 0000:02:00.0: EVT_LOGT:0271903649:0x00004000:1243
[  321.725205] iwlwifi 0000:02:00.0: EVT_LOGT:0271903970:0x00000000:0301
[  321.725219] iwlwifi 0000:02:00.0: EVT_LOGT:0271904165:0x00000005:0101
[  321.725238] iwlwifi 0000:02:00.0: EVT_LOGT:0271904165:0x00000012:0102
[  321.725258] iwlwifi 0000:02:00.0: EVT_LOGT:0271904166:0x00000018:0106
[  321.725272] iwlwifi 0000:02:00.0: EVT_LOGT:0271904166:0x00001018:0107
[  321.725286] iwlwifi 0000:02:00.0: EVT_LOGT:0271908941:0x00040000:1243
[  321.725300] iwlwifi 0000:02:00.0: EVT_LOGT:0271908949:0x00000000:0301
[  321.725320] iwlwifi 0000:02:00.0: EVT_LOGT:0271909074:0x00040000:1243
[  321.725380] iwlwifi 0000:02:00.0: EVT_LOGT:0271909402:0x00000000:0125
[  327.140825] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x2000000.
[  327.140835] iwlwifi 0000:02:00.0: Loaded firmware version: 18.168.6.1 2030-6.ucode
[  327.140955] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[  327.140956] iwlwifi 0000:02:00.0: Status: 0x0000004C, count: 6
[  327.140959] iwlwifi 0000:02:00.0: 0x0000003B | ADVANCED_SYSASSERT
[  327.140962] iwlwifi 0000:02:00.0: 0x000021E4 | uPc
[  327.140964] iwlwifi 0000:02:00.0: 0x000021DA | branchlink1
[  327.140965] iwlwifi 0000:02:00.0: 0x000021DA | branchlink2
[  327.140967] iwlwifi 0000:02:00.0: 0x0000EC7A | interruptlink1
[  327.140969] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
[  327.140970] iwlwifi 0000:02:00.0: 0x00000000 | data1
[  327.140972] iwlwifi 0000:02:00.0: 0x000000C1 | data2
[  327.140974] iwlwifi 0000:02:00.0: 0x0000008B | line
[  327.140976] iwlwifi 0000:02:00.0: 0x0C406CD0 | beacon time
[  327.140978] iwlwifi 0000:02:00.0: 0xE3805330 | tsf low
[  327.140979] iwlwifi 0000:02:00.0: 0x00000017 | tsf hi
[  327.140981] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[  327.140983] iwlwifi 0000:02:00.0: 0x004E0376 | time gp2
[  327.140985] iwlwifi 0000:02:00.0: 0x00000000 | time gp3
[  327.140987] iwlwifi 0000:02:00.0: 0x754312A8 | uCode version
[  327.140988] iwlwifi 0000:02:00.0: 0x000000C8 | hw version
[  327.140990] iwlwifi 0000:02:00.0: 0x00C80B08 | board version
[  327.140992] iwlwifi 0000:02:00.0: 0x0202001C | hcmd
[  327.140994] iwlwifi 0000:02:00.0: 0xAFF63002 | isr0
[  327.140995] iwlwifi 0000:02:00.0: 0x0189F800 | isr1
[  327.140997] iwlwifi 0000:02:00.0: 0x00000E17 | isr2
[  327.140998] iwlwifi 0000:02:00.0: 0x01460080 | isr3
[  327.141000] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[  327.141002] iwlwifi 0000:02:00.0: 0x10000112 | isr_pref
[  327.141003] iwlwifi 0000:02:00.0: 0x00029B36 | wait_event
[  327.141005] iwlwifi 0000:02:00.0: 0x000000B4 | l2p_control
[  327.141007] iwlwifi 0000:02:00.0: 0x0000324E | l2p_duration
[  327.141008] iwlwifi 0000:02:00.0: 0x0000000F | l2p_mhvalid
[  327.141010] iwlwifi 0000:02:00.0: 0x001050C0 | l2p_addr_match
[  327.141012] iwlwifi 0000:02:00.0: 0x00000005 | lmpm_pmg_sel
[  327.141013] iwlwifi 0000:02:00.0: 0x13011054 | timestamp
[  327.141015] iwlwifi 0000:02:00.0: 0x0000A0B0 | flow_handler
[  327.141092] iwlwifi 0000:02:00.0: Start IWL Event Log Dump: display last 20 entries
[  327.141111] iwlwifi 0000:02:00.0: EVT_LOGT:0005107193:0x01000000:0221
[  327.141122] iwlwifi 0000:02:00.0: EVT_LOGT:0005107194:0x0202001c:0206
[  327.141133] iwlwifi 0000:02:00.0: EVT_LOGT:0005107195:0x11000001:0251
[  327.141144] iwlwifi 0000:02:00.0: EVT_LOGT:0005107197:0x00040000:1243
[  327.141156] iwlwifi 0000:02:00.0: EVT_LOGT:0005109767:0x00000000:0301
[  327.141167] iwlwifi 0000:02:00.0: EVT_LOGT:0005110119:0x00040000:1243
[  327.141178] iwlwifi 0000:02:00.0: EVT_LOGT:0005110364:0x00000000:0301
[  327.141189] iwlwifi 0000:02:00.0: EVT_LOGT:0005110557:0x00002000:1243
[  327.141200] iwlwifi 0000:02:00.0: EVT_LOGT:0005110679:0x000000b4:0303
[  327.141211] iwlwifi 0000:02:00.0: EVT_LOGT:0005110718:0x000000c4:0322
[  327.141237] iwlwifi 0000:02:00.0: EVT_LOGT:0005110720:0x00004000:1243
[  327.141272] iwlwifi 0000:02:00.0: EVT_LOGT:0005111041:0x00000000:0301
[  327.141284] iwlwifi 0000:02:00.0: EVT_LOGT:0005111236:0x00000005:0101
[  327.141295] iwlwifi 0000:02:00.0: EVT_LOGT:0005111237:0x00000012:0102
[  327.141306] iwlwifi 0000:02:00.0: EVT_LOGT:0005111237:0x00000018:0106
[  327.141316] iwlwifi 0000:02:00.0: EVT_LOGT:0005111238:0x00001018:0107
[  327.141327] iwlwifi 0000:02:00.0: EVT_LOGT:0005112263:0x00040000:1243
[  327.141337] iwlwifi 0000:02:00.0: EVT_LOGT:0005112271:0x00000000:0301
[  327.141348] iwlwifi 0000:02:00.0: EVT_LOGT:0005112391:0x00040000:1243
[  327.141360] iwlwifi 0000:02:00.0: EVT_LOGT:0005112719:0x00000000:0125
Thank you in advance.
Cheers
 
Old 06-30-2021, 09:28 PM   #2
allend
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Registered: Oct 2003
Location: Melbourne
Distribution: Slackware64-15.0
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This post from Arch has some suggestions for settings you could try by creating a file /etc/modprobe.d/iwl.conf.
 
2 members found this post helpful.
Old 06-30-2021, 09:30 PM   #3
baumei
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According to my recollection, Bluetooth uses the same receiver and transmitter as WiFi in the 2 Ghz band, and something is to cause the WiFi and Bluetooth systems to take turns using the hardware.

It appears you have Bluetooth turned on. Are you using WiFi in the 2 Ghz band? If so, then you may want to go into the BIOS, and see whether it is possible to turn off Bluetooth (at least, for testing purposes).
Last edited by baumei; 06-30-2021 at 09:31 PM.
 
2 members found this post helpful.
Old 07-01-2021, 07:18 AM   #4
Sanvido
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Registered: Aug 2019
Location: Campinas - SP - Brazil
Distribution: Slackware
Posts: 11

Original Poster
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Quote:
Originally Posted by baumei View Post
According to my recollection, Bluetooth uses the same receiver and transmitter as WiFi in the 2 Ghz band, and something is to cause the WiFi and Bluetooth systems to take turns using the hardware.

It appears you have Bluetooth turned on. Are you using WiFi in the 2 Ghz band? If so, then you may want to go into the BIOS, and see whether it is possible to turn off Bluetooth (at least, for testing purposes).
That's right, I'm using the 2 Ghz band. I first tried disabling Bluetooth with the command "hciconfig -a hci0 down" and the problem was solved. My BIOS does not allow disabling Bluetooth.

Quote:
Originally Posted by allend View Post
This post from Arch has some suggestions for settings you could try by creating a file /etc/modprobe.d/iwl.conf.
I tried the solution of creating the /etc/modprobe.d/iwl.conf file and it also worked. And now, when I run the command "dmesh -l err", no more errors concerning iwlwifi appear.

Thanks a lot for the help, I will mark the topic as [solved].
 
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