I'm going to close out this bug, as I have not experienced this since
moving to 18.04.
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1702961
Title:
Intel wifi instability with 4.10 and Intel Device 24fd
Status in linux package in Ubuntu:
Fix Released
Bug description:
Wifi drops and has to reconnect regularly.
This is on a Dell Precision 5520.
Kernel warnings in log include.
------------[ cut here ]------------
WARNING: CPU: 4 PID: 1042 at
/build/linux-hwe-dbNd9L/linux-hwe-4.10.0/drivers/net/wireless/intel/iwlwifi/mvm/sta.c:1523
iwl_mvm_rm_sta+0x3ea/0x460 [iwlmvm]
Modules linked in: ccm rfcomm bbswitch(OE) bnep snd_hda_codec_hdmi dell_led
snd_hda_codec_realtek snd_hda_codec_generic hid_multitouch joydev
i2c_designware_platform i2c_designware_core dell_wmi mxm_wmi nls_iso8859_1
dell_rbtn dell_laptop dell_smbios dcdbas dell_smm_hwmon intel_rapl
x86_pkg_temp_thermal intel_powerclamp coretemp arc4 kvm_intel kvm irqbypass
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc iwlmvm aesni_intel
mac80211 aes_x86_64 crypto_simd glue_helper cryptd iwlwifi cfg80211 rtsx_pci_ms
memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm input_leds
snd_seq_midi serio_raw snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device
snd_timer snd soundcore uvcvideo videobuf2_vmalloc videobuf2_memops idma64
videobuf2_v4l2 virt_dma videobuf2_core videodev media
btusb btrtl mei_me shpchp mei processor_thermal_device intel_lpss_pci
intel_soc_dts_iosf intel_pch_thermal hci_uart btbcm btqca btintel bluetooth
dell_smo8800 wmi intel_hid intel_lpss_acpi nvidia_uvm(POE) sparse_keymap
mac_hid intel_lpss tpm_crb int3400_thermal int3403_thermal acpi_als
int340x_thermal_zone acpi_thermal_rel kfifo_buf acpi_pad industrialio
parport_pc ppdev lp parport autofs4 i915 rtsx_pci_sdmmc nvidia_drm(POE)
nvidia_modeset(POE) nvidia(POE) i2c_algo_bit drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops psmouse drm nvme ahci rtsx_pci nvme_core
libahci i2c_hid hid pinctrl_sunrisepoint video pinctrl_intel fjes
CPU: 4 PID: 1042 Comm: wpa_supplicant Tainted: P OE
4.10.0-27-generic #30~16.04.2-Ubuntu
Hardware name: Dell Inc. Precision 5520/0R6JFH, BIOS 1.3.4 06/08/2017
Call Trace:
dump_stack+0x63/0x90
__warn+0xcb/0xf0
warn_slowpath_null+0x1d/0x20
iwl_mvm_rm_sta+0x3ea/0x460 [iwlmvm]
iwl_mvm_mac_sta_state+0x40a/0x600 [iwlmvm]
drv_sta_state+0x8a/0x460 [mac80211]
__sta_info_destroy_part2+0x17a/0x1b0 [mac80211]
__sta_info_flush+0x103/0x1b0 [mac80211]
ieee80211_set_disassoc+0xba/0x3f0 [mac80211]
ieee80211_mgd_auth+0x26c/0x3c0 [mac80211]
? cfg80211_get_bss+0x1c5/0x2d0 [cfg80211]
ieee80211_auth+0x18/0x20 [mac80211]
cfg80211_mlme_auth+0x101/0x210 [cfg80211]
nl80211_authenticate+0x30b/0x370 [cfg80211]
genl_family_rcv_msg+0x1db/0x3b0
genl_rcv_msg+0x59/0xa0
? genl_notify+0x80/0x80
netlink_rcv_skb+0xa4/0xc0
genl_rcv+0x28/0x40
netlink_unicast+0x18c/0x240
netlink_sendmsg+0x2fb/0x3a0
? aa_sock_msg_perm+0x61/0x150
sock_sendmsg+0x38/0x50
___sys_sendmsg+0x2c2/0x2d0
? destroy_inode+0x3b/0x60
? evict+0x136/0x1a0
? iput+0x1bb/0x240
? __dentry_kill+0x110/0x160
? dput+0x214/0x250
? mntput+0x24/0x40
? __fput+0x190/0x220
__sys_sendmsg+0x54/0x90
SyS_sendmsg+0x12/0x20
entry_SYSCALL_64_fastpath+0x1e/0xad
RIP: 0033:0x7f6d6dd04450
RSP: 002b:00007ffcd1f168b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6d6dd04450
RDX: 0000000000000000 RSI: 00007ffcd1f16940 RDI: 0000000000000007
RBP: 0000562488dd1adc R08: 0000000000000000 R09: 00000000000000df
R10: 0000000000001000 R11: 0000000000000246 R12: 0000562488dd1adc
R13: 0000562488dd4550 R14: 0000000000000000 R15: 0000000000000000
---[ end trace 24fe098f56796fbc ]---
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.10.0-27-generic 4.10.0-27.30~16.04.2 [modified:
boot/vmlinuz-4.10.0-27-generic]
ProcVersionSignature: Ubuntu 4.10.0-27.30~16.04.2-generic 4.10.17
Uname: Linux 4.10.0-27-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.9
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Jul 7 11:25:55 2017
InstallationDate: Installed on 2017-07-06 (0 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Beta amd64 (20170706)
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
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