Upstream stable 4.4.181 had many brcmfmac updates. From the trace
suspicious seems:
brcmfmac: revise handling events in receive path
commit 9c349892ccc90c6de2baaa69cc78449f58082273 upstream.
which has a fixup upstream that sounds like the issue:
commit 31143e2933d1675c4c1ba6ce125cdd95870edd85
Author: Franky Lin <[email protected]>
Date: Thu Jun 2 02:00:27 2016 -0700
brcmfmac: add eth_type_trans back for PCIe full dongle
A regression was introduced in commit 9c349892ccc9 ("brcmfmac: revise
handling events in receive path") which moves eth_type_trans() call
to brcmf_rx_frame(). Msgbuf layer doesn't use brcmf_rx_frame() but invokes
brcmf_netif_rx() directly. In such case the Ethernet header was not
stripped out resulting in null pointer dereference in the networking
stack.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
IP: [<ffffffff814c3ce6>] enqueue_to_backlog+0x56/0x260
...
Fixes: 9c349892ccc9 ("brcmfmac: revise handling events in receive path")
Reported-by: Rafal Milecki <[email protected]>
Reported-by: Grey Christoforo <[email protected]>
Reviewed-by: Pieter-Paul Giesberts <[email protected]>
Reviewed-by: Arend Van Spriel <[email protected]>
Reviewed-by: Hante Meuleman <[email protected]>
Signed-off-by: Franky Lin <[email protected]>
[[email protected]: rephrased the commit message]
Signed-off-by: Arend van Spriel <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
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https://bugs.launchpad.net/bugs/1836801
Title:
BCM43602 802.11ac Wireless regression - PCI ID 14e4:43ba
Status in linux package in Ubuntu:
Confirmed
Status in linux-signed package in Ubuntu:
New
Bug description:
[Description]
The wifi device BCM43602 802.11ac Wireless (PCI ID 14e4:43ba) running
with the proposed kernel 4.4.0-155.182-generic will cause kernel
trace[1]. However the wifi function works properly with the kernel
4.4.0-154.181
[Steps to Reproduce]
1. Install ubuntu xenial, enable the proposed repository, and update the
system with "sudo apt-get dist-upgrade"
2. nmcli d wifi rescan
3. nmcli -t -f SSID,CHAN,FREQ,SIGNAL d wifi list ifname wlp2s0 (if your wifi
interface is wlp2s0), you will see the available SSIDs in your environment.
4. nmcli d wifi connect <SSID> ifname wlp2s0 name TEST_CON
[Expected Result]
The AP is connected
[Actual Result]
You will get the message: "Error: Connection activation failed: (5) IP
configuration could not be reserved (no available address, timeout, etc.)." and
the kernel trace from /var/log/syslog[1]
Sometime the system hangs when connecting to a wifi AP.
[More Information]
[1] The kernel trace log
hecking kernel ring buffer for brcmfmac messages:
kern :info : [Tue Jul 16 09:58:34 2019] usbcore: registered new interface
driver brcmfmac
kern :warn : [Tue Jul 16 09:58:34 2019] brcmfmac 0000:02:00.0: Direct
firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2
kern :info : [Tue Jul 16 09:58:35 2019] brcmfmac 0000:02:00.0 wlp2s0:
renamed from wlan0
kern :warn : [Tue Jul 16 10:08:01 2019] Modules linked in: rfcomm bnep
snd_hda_codec_hdmi dell_led snd_hda_codec_realtek snd_hda_codec_generic
snd_hda_intel snd_hda_codec i2c_designware_platform i2c_designware_core
snd_hda_core snd_hwd
ep snd_pcm dell_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel snd_seq_midi dell_laptop kvm irqbypass crct10dif_pclmul crc32_pclmul
dcdbas ghash_clmulni_intel snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device
aesni_intel snd_timer aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd
snd input_leds joydev soundcore serio_raw brcmfmac cdc_ether rtsx_pci_ms
brcmutil usbnet memstick btusb btrtl uvcvideo btbcm cfg80211 videobuf2_vmalloc
btintel
videobuf2_memops r8152 bluetooth mii videobuf2_v4l2 idma64 virt_dma
videobuf2_core mei_me v4l2_common intel_lpss_pci intel_lpss
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc077e983>]
brcmf_netif_rx+0x73/0xa0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc07844f2>]
brcmf_msgbuf_process_rx+0x142/0x5f0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc0784ed1>]
brcmf_proto_msgbuf_rx_trigger+0x31/0xe0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc07911fa>]
brcmf_pcie_isr_thread_v2+0x17a/0x1e0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] Modules linked in: rfcomm bnep
snd_hda_codec_hdmi dell_led snd_hda_codec_realtek snd_hda_codec_generic
snd_hda_intel snd_hda_codec i2c_designware_platform i2c_designware_core
snd_hda_core snd_hwd
ep snd_pcm dell_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel snd_seq_midi dell_laptop kvm irqbypass crct10dif_pclmul crc32_pclmul
dcdbas ghash_clmulni_intel snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device
aesni_intel snd_timer aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd
snd input_leds joydev soundcore serio_raw brcmfmac cdc_ether rtsx_pci_ms
brcmutil usbnet memstick btusb btrtl uvcvideo btbcm cfg80211 videobuf2_vmalloc
btintel
videobuf2_memops r8152 bluetooth mii videobuf2_v4l2 idma64 virt_dma
videobuf2_core mei_me v4l2_common intel_lpss_pci intel_lpss
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc077e983>]
brcmf_netif_rx+0x73/0xa0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc07844f2>]
brcmf_msgbuf_process_rx+0x142/0x5f0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc0784ed1>]
brcmf_proto_msgbuf_rx_trigger+0x31/0xe0 [brcmfmac]
kern :warn : [Tue Jul 16 10:08:01 2019] [<ffffffffc07911fa>]
brcmf_pcie_isr_thread_v2+0x17a/0x1e0 [brcmfmac]
[Known Affected Platforms]
Dell XPS 15 9550 (CID 201606-22346)
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-155-generic 4.4.0-155.182
ProcVersionSignature: Ubuntu 4.4.0-155.182-generic 4.4.181
Uname: Linux 4.4.0-155-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.19
Architecture: amd64
Date: Tue Jul 16 15:57:36 2019
InstallationDate: Installed on 2018-01-11 (551 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.1-0ubuntu2.19
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1756 F.... pulseaudio
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=d93551ad-a8f2-44f5-93ad-2ff3a972a488
InstallationDate: Installed on 2018-01-11 (551 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
MachineType: Dell Inc. XPS 15 9550
Package: linux-signed
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-155-generic
root=UUID=97caa0b1-7590-4cb2-8da8-d6a8af773f58 ro
ProcVersionSignature: Ubuntu 4.4.0-155.182-generic 4.4.181
RelatedPackageVersions:
linux-restricted-modules-4.4.0-155-generic N/A
linux-backports-modules-4.4.0-155-generic N/A
linux-firmware 1.157.22
Tags: xenial uec-images
Uname: Linux 4.4.0-155-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 02/17/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.21
dmi.board.name: 0N7TVV
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.2.21:bd02/17/2017:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 15 9550
dmi.sys.vendor: Dell Inc.
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