with 3.4.0-rc6 kernel now iwlwifi network drops every a couple of
minutes, at some locations:
(working well at other locations)
In dmesg: it has hundreds lines of this "GF was set with SGI:SISO",
what are these?
[91283.358048] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.370599] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.370614] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.385587] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.395188] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.408905] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.419926] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.419943] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.444590] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.444611] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.454463] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[91283.468404] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
[...]
Saw an Oops in cfg80211:
[91816.112759] ------------[ cut here ]------------
[91816.112787] WARNING: at net/wireless/mlme.c:490
cfg80211_mlme_disassoc+0x16f/0x180 [cfg80211]()
[91816.112793] Hardware name: 2522BF3
[91816.112795] Modules linked in: tun ipv6 aes_generic fuse
snd_hda_codec_hdmi snd_hda_codec_conexant arc4 pcspkr sr_mod cdrom
uvcvideo iwlwifi videobuf2_vmalloc videobuf2_memops videobuf2_core
videodev mac80211 nouveau snd_hda_intel snd_hda_codec cfbfillrect
cfg80211 cfbimgblt snd_hwdep cfbcopyarea drm_kms_helper snd_pcm ttm
snd_page_alloc drm intel_agp snd_timer e1000e intel_gtt agpgart
mxm_wmi thinkpad_acpi snd soundcore led_class rfkill wmi
[91816.112860] Pid: 2041, comm: wpa_supplicant Not tainted 3.4.0-rc6 #4
[91816.112864] Call Trace:
[91816.112874] [<ffffffff81037a4f>] warn_slowpath_common+0x7f/0xc0
[91816.112881] [<ffffffff81037aaa>] warn_slowpath_null+0x1a/0x20
[91816.112895] [<ffffffffa0186cbf>]
cfg80211_mlme_disassoc+0x16f/0x180 [cfg80211]
[91816.112908] [<ffffffffa0176f7f>] ?
get_rdev_dev_by_ifindex+0x4f/0xa0 [cfg80211]
[91816.112922] [<ffffffffa0177613>] nl80211_disassociate+0xb3/0xf0 [cfg80211]
[91816.112933] [<ffffffff8143cf60>] genl_rcv_msg+0x250/0x2d0
[91816.112939] [<ffffffff8143cd10>] ? genl_rcv+0x40/0x40
[91816.112945] [<ffffffff8143c881>] netlink_rcv_skb+0xa1/0xb0
[91816.112951] [<ffffffff8143ccf5>] genl_rcv+0x25/0x40
[91816.112957] [<ffffffff8143c25d>] netlink_unicast+0x19d/0x1f0
[91816.112963] [<ffffffff8143c585>] netlink_sendmsg+0x2d5/0x340
[91816.112970] [<ffffffff814099f0>] ? sock_update_classid+0xa0/0x110
[91816.112975] [<ffffffff81404ec0>] sock_sendmsg+0xf0/0x130
[91816.112981] [<ffffffff8106cb85>] ? sched_clock_cpu+0xc5/0x120
[91816.112988] [<ffffffff8108a5de>] ? __lock_acquire.isra.30+0x29e/0xa00
[91816.112993] [<ffffffff8106cb85>] ? sched_clock_cpu+0xc5/0x120
[91816.113001] [<ffffffff8114935b>] ? core_sys_select+0x3b/0x390
[91816.113006] [<ffffffff814061a0>] ? move_addr_to_kernel+0x40/0x60
[91816.113013] [<ffffffff81411cf6>] ? verify_iovec+0x56/0xd0
[91816.113018] [<ffffffff8140536e>] __sys_sendmsg+0x40e/0x420
[91816.113024] [<ffffffff8114935b>] ? core_sys_select+0x3b/0x390
[91816.113031] [<ffffffff81152de0>] ? replace_mount_options+0x40/0x40
[91816.113037] [<ffffffff8108873f>] ? lock_release_holdtime.part.22+0xf/0x160
[91816.113045] [<ffffffff8107f1c0>] ? ktime_get_ts+0xb0/0xf0
[91816.113051] [<ffffffff81148933>] ? poll_select_copy_remaining+0xf3/0x140
[91816.113057] [<ffffffff81406e69>] sys_sendmsg+0x49/0x90
[91816.113066] [<ffffffff814ff412>] system_call_fastpath+0x16/0x1b
[91816.113070] ---[ end trace 58ac3f715de91989 ]---
Saw these after every wifi drops:
[92888.292163] iwlwifi 0000:03:00.0: Queue 2 stuck for 2000 ms.
[92888.292172] iwlwifi 0000:03:00.0: Current SW read_ptr 150 write_ptr 157
[92888.292230] iwlwifi 0000:03:00.0: Current HW read_ptr 150 write_ptr 157
[92888.292235] iwlwifi 0000:03:00.0: On demand firmware reload
[92888.292804] ieee80211 phy0: Hardware restart was requested
[92888.292977] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[92888.293225] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[92933.761591] wlan0: deauthenticating from 6c:9c:ed:eb:7d:bf by local
choice (reason=3)
And NetworkManager could detect that and recover:
[92953.279495] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[92953.299388] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[93175.940227] iwlwifi 0000:03:00.0: Queue 2 stuck for 2000 ms.
[93175.940239] iwlwifi 0000:03:00.0: Current SW read_ptr 251 write_ptr 0
[93175.940298] iwlwifi 0000:03:00.0: Current HW read_ptr 251 write_ptr 0
[93175.940303] iwlwifi 0000:03:00.0: On demand firmware reload
[93175.940834] ieee80211 phy0: Hardware restart was requested
[93175.940989] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[93175.941189] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[93262.303580] wlan0: deauthenticating from 24:b6:57:34:69:ff by local
choice (reason=3)
[93265.076969] wlan0: authenticate with 6c:9c:ed:eb:7d:bf
[93265.112132] wlan0: direct probe to 6c:9c:ed:eb:7d:bf (try 1/3)
[93265.312137] wlan0: direct probe to 6c:9c:ed:eb:7d:bf (try 2/3)
[93265.512863] wlan0: direct probe to 6c:9c:ed:eb:7d:bf (try 3/3)
[93265.713442] wlan0: authentication with 6c:9c:ed:eb:7d:bf timed out
[93265.724161] iwlwifi 0000:03:00.0: ACTIVATE a non DRIVER active
station id 0 addr 6c:9c:ed:eb:7d:bf
[93273.620809] wlan0: authenticate with 24:b6:57:34:69:ff
[93273.658688] wlan0: send auth to 24:b6:57:34:69:ff (try 1/3)
[93273.662115] wlan0: authenticated
[93273.662917] wlan0: associate with 24:b6:57:34:69:ff (try 1/3)
[93273.730204] wlan0: RX AssocResp from 24:b6:57:34:69:ff (capab=0x11
status=0 aid=17)
[93273.730211] wlan0: associated
[93273.736656] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[93273.814120] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready