From: Ben Greear <greearb@candelatech.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: start_next_roc splat in 3.11.0+
Date: Thu, 12 Sep 2013 16:08:01 -0700 [thread overview]
Message-ID: <52324951.6060200@candelatech.com> (raw)
Was bringing up 128 stations configured for HotSpot 2.0 (wpa2, 802.1x, etc)
on a relatively slow machine.
I doubt it has much to do with how they are configured however.
The warning that hit is here:
roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,
list);
if (WARN_ON_ONCE(roc->started))
return;
This is running my normal set of patches.
[ 133.530413] ------------[ cut here ]------------
[ 133.541409] WARNING: CPU: 1 PID: 7246 at /home/greearb/git/linux-3.11.dev.y/net/mac80211/offchannel.c:269 ieee80211_start_next_roc+0x1f1/0x210 [mac80211]()
[ 133.565902] Modules linked in: nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack 8021q garp stp mrp llc fuse macvlan wanlink(O) pktgen
iTCO_wdt gpio_ich iTCO_vendor_support arc4 pcspkr serio_raw i2c_i801 snd_hda_codec_realtek lpc_ich joydev ath9k_htc ath9k snd_hda_intel ath9k_common
snd_hda_codec snd_hwdep ath9k_hw ath mac80211 snd_seq snd_seq_device cfg80211 snd_pcm rfkill r8169 mii snd_page_alloc snd_timer snd soundcore uinput i915 video
i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: iptable_nat]
[ 133.643933] CPU: 1 PID: 7246 Comm: ip Tainted: G C O 3.11.0+ #21
[ 133.659832] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015 05/31/2010
[ 133.679989] 0000010d efa6b964 c09c877c f849d0e4 efa6b994 c0459804 c0b65c08 00000001
[ 133.694895] 00001c4e f849d0e4 0000010d f844a711 f844a711 f7774360 f7774360 00000001
[ 133.708929] efa6b9a4 c0459842 00000009 00000000 efa6b9dc f844a711 efd14c30 f7774e78
[ 133.723050] Call Trace:
[ 133.731352] [<c09c877c>] dump_stack+0x4c/0x78
[ 133.741687] [<c0459804>] warn_slowpath_common+0x84/0xa0
[ 133.752888] [<f844a711>] ? ieee80211_start_next_roc+0x1f1/0x210 [mac80211]
[ 133.765706] [<f844a711>] ? ieee80211_start_next_roc+0x1f1/0x210 [mac80211]
[ 133.778334] [<c0459842>] warn_slowpath_null+0x22/0x30
[ 133.789153] [<f844a711>] ieee80211_start_next_roc+0x1f1/0x210 [mac80211]
[ 133.801612] [<f846879e>] ? ieee80211_queue_work+0x2e/0x40 [mac80211]
[ 133.813715] [<f848759d>] ? ieee80211_mesh_notify_scan_completed+0x7d/0x90 [mac80211]
[ 133.827250] [<f844983a>] __ieee80211_scan_completed+0xca/0x1f0 [mac80211]
[ 133.839946] [<f8449a49>] ieee80211_scan_cancel+0xe9/0x190 [mac80211]
[ 133.852084] [<c0459fa8>] ? put_online_cpus+0x48/0x70
[ 133.862866] [<f8453547>] ieee80211_do_stop+0x647/0x700 [mac80211]
[ 133.874749] [<c09009d6>] ? dev_deactivate_many+0x1e6/0x210
[ 133.885858] [<f8453667>] ieee80211_stop+0x17/0x20 [mac80211]
[ 133.897063] [<c08e3049>] __dev_close_many+0x69/0xb0
[ 133.907875] [<c08fbe5e>] ? netpoll_rx_disable+0x3e/0x50
[ 133.918588] [<c08e30c6>] __dev_close+0x36/0x70
[ 133.928541] [<c08e2302>] __dev_change_flags+0x82/0x150
[ 133.939080] [<c0916554>] ? ip_local_deliver+0x44/0x90
[ 133.949514] [<c08e4033>] dev_change_flags+0x23/0x60
[ 133.959742] [<c08f17a4>] do_setlink+0x224/0x7a0
[ 133.969666] [<c06be142>] ? nla_parse+0x22/0xd0
[ 133.979333] [<c08f4b72>] rtnl_newlink+0x532/0x5b0
[ 133.989164] [<c06444fc>] ? security_capable+0x1c/0x30
[ 133.999259] [<c0461e4a>] ? ns_capable+0x2a/0x60
[ 134.008797] [<c08f2129>] rtnetlink_rcv_msg+0x179/0x1f0
[ 134.019120] [<c05596bd>] ? __kmalloc_track_caller+0x2d/0x170
[ 134.029897] [<c0515e66>] ? find_get_page+0x66/0xb0
[ 134.040175] [<c08d877b>] ? __alloc_skb+0x6b/0x180
[ 134.050340] [<c08f1fb0>] ? rtnetlink_rcv+0x30/0x30
[ 134.060039] [<c090b016>] netlink_rcv_skb+0x86/0xb0
[ 134.069626] [<c08f1f9c>] rtnetlink_rcv+0x1c/0x30
[ 134.078854] [<c090ad86>] netlink_unicast+0xe6/0x140
[ 134.088397] [<c090ba72>] netlink_sendmsg+0x242/0x620
[ 134.097907] [<c0452203>] ? __kunmap_atomic+0x83/0xa0
[ 134.107349] [<c051c780>] ? get_page_from_freelist+0x250/0x500
[ 134.117435] [<c08d147a>] sock_sendmsg+0xaa/0xe0
[ 134.126226] [<c08cf608>] ? copy_from_user+0x8/0x10
[ 134.135068] [<c08dba2b>] ? verify_iovec+0x5b/0xb0
[ 134.143761] [<c08d2285>] ___sys_sendmsg+0x2c5/0x2e0
[ 134.152498] [<c052244d>] ? lru_cache_add+0xd/0x10
[ 134.160935] [<c053adc3>] ? handle_pte_fault+0x493/0xae0
[ 134.169849] [<c08d7e30>] ? skb_dequeue+0x50/0x70
[ 134.178135] [<c053b601>] ? handle_mm_fault+0x1f1/0x300
[ 134.186733] [<c08d241e>] __sys_sendmsg+0x3e/0x70
[ 134.194841] [<c08d2466>] SyS_sendmsg+0x16/0x20
[ 134.202652] [<c08d27af>] SyS_socketcall+0x11f/0x2e0
[ 134.210877] [<c0566f7d>] ? ____fput+0xd/0x10
[ 134.218528] [<c09d364d>] sysenter_do_call+0x12/0x28
[ 134.226767] ---[ end trace 2b5f2f9c64702e82 ]---
[ 134.251401] ath: wiphy0: Failed to stop TX DMA, queues=0x005!
[ 134.280969] ath: wiphy0: Failed to stop TX DMA, queues=0x004!
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
reply other threads:[~2013-09-12 23:08 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=52324951.6060200@candelatech.com \
--to=greearb@candelatech.com \
--cc=linux-wireless@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.