Dear Maintainer,
This tends to happen very frequently with the listed kernel. The link is
never lost. But ping and other network request just timeout.
The way to re-establish the network is to disconnect, disable wifi, and
then reconnect again.
[68727.456075] ------------[ cut here ]------------
[68727.456138] WARNING: CPU: 1 PID: 662 at /build/linux-frGp24/linux-4.4.4/net/wireless/sme.c:850 wl_notify_roaming_status+0xb6/0x130 [wl]()
[68727.456140] Modules linked in: msr cpufreq_stats cmac ecb hid_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi usbhid snd_seq_device hid fuse rfcomm bnep bridge stp llc ip6table_mangle ip6table_nat nf_nat_ipv6 nf_log_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_mac nf_conntrack_ipv4 nf_defrag_ipv4 xt_multiport xt_recent xt_addrtype xt_conntrack nf_conntrack iptable_filter ip_tables x_tables binfmt_misc btusb btrtl btbcm btintel ppdev snd_hda_codec_hdmi uvcvideo bluetooth videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common hp_wmi videodev media sparse_keymap iTCO_wdt iTCO_vendor_support intel_rapl iosf_mbi
[68727.456184] x86_pkg_temp_thermal wl(PO) intel_powerclamp snd_hda_codec_realtek snd_hda_codec_generic coretemp kvm_intel kvm irqbypass joydev cfg80211 evdev parport_pc pcspkr parport rfkill serio_raw sg 8250_fintek wmi battery snd_hda_intel snd_hda_codec tpm_infineon snd_hda_core snd_hwdep snd_pcm i915 snd_timer snd hp_accel ac hp_wireless tpm_tis tpm video shpchp button drm_kms_helper drm i2c_algo_bit lis3lv02d input_polldev soundcore lpc_ich processor mfd_core loop autofs4 ext4 crc16 mbcache jbd2 btrfs xor raid6_pq algif_skcipher af_alg dm_crypt dm_mod uas usb_storage sd_mod crct10dif_pclmul crc32_pclmul crc32c_intel jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse ahci libahci r8168(O) libata scsi_mod
[68727.456236] ehci_pci xhci_pci ehci_hcd xhci_hcd usbcore usb_common thermal fjes
[68727.456244] CPU: 1 PID: 662 Comm: wl_event_handle Tainted: P W O 4.4.0-1-amd64 #1 Debian 4.4.4-2
[68727.456246] Hardware name: Hewlett-Packard HP ProBook 450 G2/2248, BIOS M74 Ver. 01.05 09/20/2014
[68727.456248] 0000000000000286 00000000e7ab50e8 ffffffff812ea6b5 0000000000000000
[68727.456251] ffffffffa0854770 ffffffff8107751d ffff88024566c700 ffff8802448b4354
[68727.456254] ffff88024566cf1a ffff880245334000 ffff88024566caf8 ffffffffa0ce29a6
[68727.456256] Call Trace:
[68727.456264] [<ffffffff812ea6b5>] ? dump_stack+0x5c/0x77
[68727.456268] [<ffffffff8107751d>] ? warn_slowpath_common+0x7d/0xb0
[68727.456308] [<ffffffffa0ce29a6>] ? wl_notify_roaming_status+0xb6/0x130 [wl]
[68727.456345] [<ffffffffa0ce2088>] ? wl_event_handler+0x58/0x190 [wl]
[68727.456379] [<ffffffffa0ce2030>] ? wl_notify_scan_status+0x310/0x310 [wl]
[68727.456383] [<ffffffff81094dfd>] ? kthread+0xcd/0xf0
[68727.456386] [<ffffffff81094d30>] ? kthread_create_on_node+0x190/0x190
[68727.456390] [<ffffffff8158ed8f>] ? ret_from_fork+0x3f/0x70
[68727.456393] [<ffffffff81094d30>] ? kthread_create_on_node+0x190/0x190
[68727.456395] ---[ end trace a33023f52386f7b6 ]---
[68759.506584] ------------[ cut here ]------------
[68759.506646] WARNING: CPU: 1 PID: 662 at /build/linux-frGp24/linux-4.4.4/net/wireless/sme.c:850 wl_notify_roaming_status+0xb6/0x130 [wl]()
[68759.506649] Modules linked in: msr cpufreq_stats cmac ecb hid_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi usbhid snd_seq_device hid fuse rfcomm bnep bridge stp llc ip6table_mangle ip6table_nat nf_nat_ipv6 nf_log_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_mac nf_conntrack_ipv4 nf_defrag_ipv4 xt_multiport xt_recent xt_addrtype xt_conntrack nf_conntrack iptable_filter ip_tables x_tables binfmt_misc btusb btrtl btbcm btintel ppdev snd_hda_codec_hdmi uvcvideo bluetooth videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common hp_wmi videodev media sparse_keymap iTCO_wdt iTCO_vendor_support intel_rapl iosf_mbi
[68759.506692] x86_pkg_temp_thermal wl(PO) intel_powerclamp snd_hda_codec_realtek snd_hda_codec_generic coretemp kvm_intel kvm irqbypass joydev cfg80211 evdev parport_pc pcspkr parport rfkill serio_raw sg 8250_fintek wmi battery snd_hda_intel snd_hda_codec tpm_infineon snd_hda_core snd_hwdep snd_pcm i915 snd_timer snd hp_accel ac hp_wireless tpm_tis tpm video shpchp button drm_kms_helper drm i2c_algo_bit lis3lv02d input_polldev soundcore lpc_ich processor mfd_core loop autofs4 ext4 crc16 mbcache jbd2 btrfs xor raid6_pq algif_skcipher af_alg dm_crypt dm_mod uas usb_storage sd_mod crct10dif_pclmul crc32_pclmul crc32c_intel jitterentropy_rng sha256_ssse3 sha256_generic hmac drbg ansi_cprng aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse ahci libahci r8168(O) libata scsi_mod
[68759.506744] ehci_pci xhci_pci ehci_hcd xhci_hcd usbcore usb_common thermal fjes
[68759.506752] CPU: 1 PID: 662 Comm: wl_event_handle Tainted: P W O 4.4.0-1-amd64 #1 Debian 4.4.4-2
[68759.506754] Hardware name: Hewlett-Packard HP ProBook 450 G2/2248, BIOS M74 Ver. 01.05 09/20/2014
[68759.506756] 0000000000000286 00000000e7ab50e8 ffffffff812ea6b5 0000000000000000
[68759.506759] ffffffffa0854770 ffffffff8107751d ffff88024566c700 ffff8801b97610d4
[68759.506762] ffff88024566cf1a ffff880245334000 ffff88024566caf8 ffffffffa0ce29a6
[68759.506765] Call Trace:
[68759.506772] [<ffffffff812ea6b5>] ? dump_stack+0x5c/0x77
[68759.506777] [<ffffffff8107751d>] ? warn_slowpath_common+0x7d/0xb0
[68759.506818] [<ffffffffa0ce29a6>] ? wl_notify_roaming_status+0xb6/0x130 [wl]
[68759.506855] [<ffffffffa0ce2088>] ? wl_event_handler+0x58/0x190 [wl]
[68759.506890] [<ffffffffa0ce2030>] ? wl_notify_scan_status+0x310/0x310 [wl]
[68759.506894] [<ffffffff81094dfd>] ? kthread+0xcd/0xf0
[68759.506897] [<ffffffff81094d30>] ? kthread_create_on_node+0x190/0x190
[68759.506901] [<ffffffff8158ed8f>] ? ret_from_fork+0x3f/0x70
[68759.506904] [<ffffffff81094d30>] ? kthread_create_on_node+0x190/0x190
[68759.506905] ---[ end trace a33023f52386f7b7 ]---
19:52 ♒♒♒ ☺
rrs@chutzpah:/lib/modules/4.4.0-1-amd64$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
^C
--- 192.168.1.1 ping statistics ---
71 packets transmitted, 0 received, 100% packet loss, time 69999ms
19:53 ♒♒♒ ☹ => 1
rrs@chutzpah:/lib/modules/4.4.0-1-amd64$