Comment # 6
on bug 900811
from Srinidhi B S
(In reply to Takashi Iwai from comment #5)
> OK, then let's close. Thanks for reporting and testing.
Okay, I'm back - this time on openSUSE 13.2. Following 2 snippets from
journalctl from 2 different situations / scenarios:
> Jan 17 18:06:30 srinidhi kernel: ------------[ cut here ]------------
> Jan 17 18:06:30 srinidhi kernel: WARNING: CPU: 0 PID: 961 at ../drivers/net/wireless/iwlwifi/mvm/tx.c:191 iwl_mvm_set_tx_params+0x5e3/0x620 [iwlmvm]()
> Jan 17 18:06:30 srinidhi kernel: Got an HT rate for a non data frame 0xa8
> Jan 17 18:06:30 srinidhi kernel: Modules linked in: ctr ccm fuse af_packet xt_pkttype xt_LOG xt_limit bnep vboxpci(O) vboxnetadp(O) vboxnetflt(O) ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJEC
> Jan 17 18:06:30 srinidhi kernel: videobuf2_memops videobuf2_core v4l2_common videodev snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep ecb snd_pcm iwlwifi snd_timer thinkpad_acpi cfg80211 btusb bluetooth rtsx_pci 6
> Jan 17 18:06:30 srinidhi kernel: CPU: 0 PID: 961 Comm: wpa_supplicant Tainted: G O 3.16.7-7-desktop #1
> Jan 17 18:06:30 srinidhi kernel: Hardware name: LENOVO 20ARS16H00/20ARS16H00, BIOS GJET67WW (2.17 ) 12/10/2013
> Jan 17 18:06:30 srinidhi kernel: 0000000000000009 ffffffff8161bd03 ffff880207617900 ffffffff8105cad7
> Jan 17 18:06:30 srinidhi kernel: ffff880212655848 ffff880207617950 0000000000000000 ffff88014858fc40
> Jan 17 18:06:30 srinidhi kernel: 0000000000000008 ffffffff8105cb3c ffffffffa0765c98 ffff880200000020
> Jan 17 18:06:30 srinidhi kernel: Call Trace:
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff810051ee>] dump_trace+0x8e/0x350
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff81005556>] show_stack_log_lvl+0xa6/0x190
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff81006c51>] show_stack+0x21/0x50
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff8161bd03>] dump_stack+0x49/0x6a
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff8105cad7>] warn_slowpath_common+0x77/0x90
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff8105cb3c>] warn_slowpath_fmt+0x4c/0x50
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa074a023>] iwl_mvm_set_tx_params+0x5e3/0x620 [iwlmvm]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa074a273>] iwl_mvm_tx_skb+0x53/0x370 [iwlmvm]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa07437e3>] iwl_mvm_mac_tx+0xa3/0x1b0 [iwlmvm]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa067346e>] __ieee80211_tx+0x26e/0x380 [mac80211]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa0675963>] ieee80211_tx+0xb3/0xf0 [mac80211]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa067656c>] ieee80211_subif_start_xmit+0x66c/0xd70 [mac80211]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff8153032f>] dev_hard_start_xmit+0x2df/0x5e0
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff81550271>] sch_direct_xmit+0xc1/0x1c0
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff8153082b>] __dev_queue_xmit+0x1fb/0x4f0
> Jan 17 18:06:30 srinidhi kernel: [<ffffffffa0ad1ea5>] packet_sendmsg+0xcb5/0xfa0 [af_packet]
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff8151555b>] sock_sendmsg+0x8b/0xc0
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff81515a91>] SYSC_sendto+0xf1/0x180
> Jan 17 18:06:30 srinidhi kernel: [<ffffffff81622a2d>] system_call_fastpath+0x1a/0x1f
> Jan 17 18:06:30 srinidhi kernel: [<00007ff88e18b8c3>] 0x7ff88e18b8c2
> Jan 17 18:06:30 srinidhi kernel: ---[ end trace 1846687b83bc62df ]---
> Jan 20 19:33:10 srinidhi kernel: ------------[ cut here ]------------
> Jan 20 19:33:10 srinidhi kernel: WARNING: CPU: 2 PID: 17249 at ../net/wireless/reg.c:1806 reg_process_hint+0x3fc/0x410 [cfg80211]()
> Jan 20 19:33:10 srinidhi kernel: Modules linked in: nls_iso8859_1 nls_cp437 reiserfs vfat fat uas usb_storage msr cpufreq_stats tun ctr ccm fuse af_packet xt_pkttype xt_LOG xt_limit bnep vboxpci(O) vboxnetadp(O) vboxnetflt(
> Jan 20 19:33:11 srinidhi kernel: ablk_helper cryptd serio_raw pcspkr iwlmvm joydev uvcvideo mac80211 videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_hda_intel snd_hda_controller snd_hda_codec snd
> Jan 20 19:33:11 srinidhi kernel: CPU: 2 PID: 17249 Comm: kworker/2:0 Tainted: G W O 3.16.7-7-desktop #1
> Jan 20 19:33:11 srinidhi kernel: Hardware name: LENOVO 20ARS16H00/20ARS16H00, BIOS GJET67WW (2.17 ) 12/10/2013
> Jan 20 19:33:11 srinidhi kernel: Workqueue: events reg_todo [cfg80211]
> Jan 20 19:33:11 srinidhi kernel: 0000000000000009 ffffffff8161bd03 0000000000000000 ffffffff8105cad7
> Jan 20 19:33:11 srinidhi kernel: ffff88009d3b44c0 ffff880212654260 ffff88009d3b44dc ffff88021e295b00
> Jan 20 19:33:11 srinidhi kernel: 0000000000000000 ffffffffa0557f4c ffffffffa05ab2a0 ffff880026f72b80
> Jan 20 19:33:11 srinidhi kernel: Call Trace:
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff810051ee>] dump_trace+0x8e/0x350
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff81005556>] show_stack_log_lvl+0xa6/0x190
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff81006c51>] show_stack+0x21/0x50
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff8161bd03>] dump_stack+0x49/0x6a
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff8105cad7>] warn_slowpath_common+0x77/0x90
> Jan 20 19:33:11 srinidhi kernel: [<ffffffffa0557f4c>] reg_process_hint+0x3fc/0x410 [cfg80211]
> Jan 20 19:33:11 srinidhi kernel: [<ffffffffa0557fd6>] reg_todo+0x76/0x190 [cfg80211]
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff810770fd>] process_one_work+0x16d/0x460
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff810779e5>] worker_thread+0x115/0x510
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff8107dd5d>] kthread+0xbd/0xe0
> Jan 20 19:33:11 srinidhi kernel: [<ffffffff8162297c>] ret_from_fork+0x7c/0xb0
> Jan 20 19:33:11 srinidhi kernel: ---[ end trace 1846687b83bc62e0 ]---
On both these occasions, no matter how much I tried, NetworkManager would never
connect to a wireless network. The only solution in both these occasions were:
> # rcnetwork stop
> # killall wpa_supplicant
> # rcnetwork start
Wireless link is up in seconds without any further changes.
Running openSUSE 13.2 with following kernel version:
> # uname -r
> 3.16.7-7-desktop
All latest updates have been installed.