I saw the WARN_ON_ONCE hit below on 3.9.0+ (+ hacks)
on a system with ath9k and ath9k_htc driver.
I'll be happy to add more debugging if someone has suggestions.
static void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx)
{
struct ieee80211_chanctx_conf *conf = &ctx->conf;
struct ieee80211_sub_if_data *sdata;
const struct cfg80211_chan_def *compat = NULL;
lockdep_assert_held(&local->chanctx_mtx);
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(sdata))
continue;
if (rcu_access_pointer(sdata->vif.chanctx_conf) != conf)
continue;
if (!compat)
compat = &sdata->vif.bss_conf.chandef;
compat = cfg80211_chandef_compatible(
&sdata->vif.bss_conf.chandef, compat);
if (!compat)
break;
}
rcu_read_unlock();
if (WARN_ON_ONCE(!compat))
return;
ieee80211_change_chanctx(local, ctx, compat);
}
May 8 09:39:16 localhost kernel: [412775.378116] wlan0: deauthenticating from 80:01:02:03:04:05 by local choice (reason=3)
May 8 09:39:17 localhost kernel: [412776.206878] ------------[ cut here ]------------
May 8 09:39:17 localhost kernel: [412776.219968] WARNING: at /home/greearb/git/linux-3.9.dev.y/net/mac80211/chan.c:186
ieee80211_recalc_chanctx_chantype+0x9f/0xe0 [mac80211]()
May 8 09:39:17 localhost kernel: [412776.246245] Hardware name: To Be Filled By O.E.M.
May 8 09:39:17 localhost kernel: [412776.254609] Modules linked in: iptable_raw xt_CT nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack
bluetooth 8021q mrp garp stp llc fuse macvlan wanlink(O) pktgen w83627ehf hwmon_vid nfsv3 nfs_acl nfsv4 auth_rpcgss nfs fscache lockd sunrpc binfmt_misc uinput
arc4 ath9k(-) ath9k_htc mac80211 coretemp gpio_ich iTCO_wdt snd_hda_codec_realtek iTCO_vendor_support ath9k_common snd_hda_intel ath9k_hw snd_hda_codec ath
snd_hwdep snd_seq snd_seq_device microcode lpc_ich i2c_i801 pcspkr serio_raw snd_pcm cfg80211 snd_timer rfkill snd r8169 soundcore snd_page_alloc mii i915
drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: iptable_nat]
May 8 09:39:17 localhost kernel: [412776.339435] Pid: 11945, comm: rmmod Tainted: G WC O 3.9.0+ #25
May 8 09:39:17 localhost kernel: [412776.350098] Call Trace:
May 8 09:39:17 localhost kernel: [412776.356658] [<c0450fc2>] warn_slowpath_common+0x72/0xa0
May 8 09:39:17 localhost kernel: [412776.366123] [<f99fd14f>] ? ieee80211_recalc_chanctx_chantype+0x9f/0xe0 [mac80211]
May 8 09:39:17 localhost kernel: [412776.377810] [<f99fd14f>] ? ieee80211_recalc_chanctx_chantype+0x9f/0xe0 [mac80211]
May 8 09:39:17 localhost kernel: [412776.389318] [<c0451012>] warn_slowpath_null+0x22/0x30
May 8 09:39:17 localhost kernel: [412776.398267] [<f99fd14f>] ieee80211_recalc_chanctx_chantype+0x9f/0xe0 [mac80211]
May 8 09:39:17 localhost kernel: [412776.409563] [<f99fd85c>] __ieee80211_vif_release_channel+0xac/0x220 [mac80211]
May 8 09:39:17 localhost kernel: [412776.421161] [<f99fda12>] ieee80211_vif_release_channel+0x42/0x60 [mac80211]
May 8 09:39:17 localhost kernel: [412776.432570] [<f9a15a3e>] ieee80211_set_disassoc+0x21e/0x460 [mac80211]
May 8 09:39:17 localhost kernel: [412776.443246] [<f9a15fa4>] ieee80211_mgd_deauth+0x234/0x2a0 [mac80211]
May 8 09:39:17 localhost kernel: [412776.453685] [<f99e91f5>] ieee80211_deauth+0x15/0x20 [mac80211]
May 8 09:39:17 localhost kernel: [412776.463615] [<f861df37>] cfg80211_mlme_down+0x97/0x1b0 [cfg80211]
May 8 09:39:17 localhost kernel: [412776.473670] [<f862188d>] __cfg80211_disconnect+0x22d/0x280 [cfg80211]
May 8 09:39:17 localhost kernel: [412776.484487] [<c0412ade>] ? __switch_to+0xee/0x390
May 8 09:39:17 localhost kernel: [412776.493283] [<f86017b6>] cfg80211_netdev_notifier_call+0x576/0x6a0 [cfg80211]
May 8 09:39:17 localhost kernel: [412776.504497] [<c092d7a9>] ? inetdev_event+0x29/0x4f0
May 8 09:39:17 localhost kernel: [412776.513376] [<c08e2d3d>] ? fib_rules_event+0x1d/0x180
May 8 09:39:17 localhost kernel: [412776.522437] [<c099b06d>] ? packet_notifier+0x9d/0x170
May 8 09:39:17 localhost kernel: [412776.531532] [<c09bd443>] notifier_call_chain+0x43/0x60
May 8 09:39:17 localhost kernel: [412776.540791] [<c047773f>] raw_notifier_call_chain+0x1f/0x30
May 8 09:39:17 localhost kernel: [412776.550452] [<c08c9c8c>] call_netdevice_notifiers+0x2c/0x60
May 8 09:39:17 localhost kernel: [412776.560253] [<c09b6d85>] ? schedule_timeout+0x185/0x1c0
May 8 09:39:17 localhost kernel: [412776.569707] [<c077e5c3>] ? device_release+0x33/0x90
May 8 09:39:17 localhost kernel: [412776.578886] [<c077e5c3>] ? device_release+0x33/0x90
May 8 09:39:17 localhost kernel: [412776.588098] [<c08c9cf4>] __dev_close_many+0x34/0xb0
May 8 09:39:17 localhost kernel: [412776.597330] [<c0549450>] ? kfree+0x100/0x130
May 8 09:39:17 localhost kernel: [412776.605808] [<c0691428>] ? kobject_release+0x98/0x1c0
May 8 09:39:17 localhost kernel: [412776.615088] [<c08c9e5c>] dev_close_many+0x6c/0xc0
May 8 09:39:17 localhost kernel: [412776.624071] [<c08c9fef>] rollback_registered_many+0xaf/0x1f0
May 8 09:39:17 localhost kernel: [412776.634068] [<c08ca1aa>] ? unregister_netdevice_queue+0x1a/0xc0
May 8 09:39:17 localhost kernel: [412776.644431] [<c04d3ff0>] ? call_rcu_bh+0x20/0x20
May 8 09:39:17 localhost kernel: [412776.653502] [<c08ca144>] unregister_netdevice_many+0x14/0x60
May 8 09:39:17 localhost kernel: [412776.663814] [<f99e3383>] ieee80211_remove_interfaces+0xb3/0x140 [mac80211]
May 8 09:39:17 localhost kernel: [412776.675363] [<f99d3156>] ieee80211_unregister_hw+0x56/0x100 [mac80211]
May 8 09:39:17 localhost kernel: [412776.686637] [<f987d69a>] ath9k_deinit_device+0x3a/0x60 [ath9k]
May 8 09:39:17 localhost kernel: [412776.697266] [<f988d4a1>] ath_pci_remove+0x31/0x50 [ath9k]
May 8 09:39:17 localhost kernel: [412776.707386] [<c06c1d68>] pci_device_remove+0x38/0xc0
May 8 09:39:17 localhost kernel: [412776.717151] [<c07819cf>] __device_release_driver+0x5f/0xb0
May 8 09:39:17 localhost kernel: [412776.727339] [<c0781aaf>] driver_detach+0x8f/0xa0
May 8 09:39:17 localhost kernel: [412776.736509] [<c0780abc>] bus_remove_driver+0x6c/0xe0
May 8 09:39:17 localhost kernel: [412776.746057] [<c07801c7>] ? bus_put+0x17/0x20
May 8 09:39:17 localhost kernel: [412776.754775] [<c0780ad3>] ? bus_remove_driver+0x83/0xe0
May 8 09:39:17 localhost kernel: [412776.764283] [<c07825f9>] driver_unregister+0x49/0x80
May 8 09:39:17 localhost kernel: [412776.773412] [<c06c1ea8>] pci_unregister_driver+0x18/0x70
May 8 09:39:17 localhost kernel: [412776.782780] [<f988d2b2>] ath_pci_exit+0x12/0x20 [ath9k]
May 8 09:39:17 localhost kernel: [412776.791971] [<f98968c0>] ath9k_exit+0x17/0x757 [ath9k]
May 8 09:39:17 localhost kernel: [412776.800982] [<c04b0fca>] sys_delete_module+0x17a/0x250
May 8 09:39:17 localhost kernel: [412776.809871] [<c0532848>] ? do_munmap+0x238/0x2c0
May 8 09:39:17 localhost kernel: [412776.818268] [<c04c7ff6>] ? __audit_syscall_exit+0x1f6/0x280
May 8 09:39:17 localhost kernel: [412776.827617] [<c09c06cd>] sysenter_do_call+0x12/0x28
May 8 09:39:17 localhost kernel: [412776.836150] ---[ end trace aff91972ce67584d ]---
May 8 09:39:17 localhost dhcpd: receive_packet failed on vap0: Network is down
May 8 09:39:18 localhost kernel: [412777.276473] ath9k: ath9k: Driver unloaded
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
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