Bug 1480254 - WARNING: CPU: 1 PID: 4545 at net/mac80211/ibss.c:1082 ieee80211_rx_mgmt_probe_beacon+0x725/0x7a0 [mac80211]
WARNING: CPU: 1 PID: 4545 at net/mac80211/ibss.c:1082 ieee80211_rx_mgmt_probe...
Status: NEW
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
26
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
:
Depends On: 1480217
Blocks:
  Show dependency treegraph
 
Reported: 2017-08-10 09:53 EDT by Ken Benoit
Modified: 2017-08-10 09:54 EDT (History)
8 users (show)

See Also:
Fixed In Version:
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Doc Text:
Story Points: ---
Clone Of: 1480217
Environment:
Last Closed:
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description Ken Benoit 2017-08-10 09:53:00 EDT
+++ This bug was initially created as a clone of Bug #1480217 +++

Description of problem:
When connecting to an already established IBSS connection using nmcli a warning is showing up in dmesg.

Version-Release number of selected component (if applicable):
RHEL-7.4

How reproducible:
Frequent, but not 100%

Steps to Reproduce:
1. Have a different system create an IBSS connection.
2. Using nmcli, have the test system connect to the established IBSS connection.

Actual results:
Connection successful but there is a warning with a call trace in dmesg shortly after connecting.

Expected results:
Connection successful with no warning.

Additional info:
This is also happening on Fedora 26 (which I will file a separate bug for).

Warning with call trace on RHEL-7.4 is below:
[  298.211973] ------------[ cut here ]------------
[  298.219842] WARNING: CPU: 0 PID: 308 at net/mac80211/ibss.c:1082 ieee80211_rx_mgmt_probe_beacon+0x725/0x7a0 [mac80211]
[  298.236624] Modules linked in: arc4 intel_powerclamp iwldvm mac80211 coretemp snd_hda_codec_hdmi intel_rapl iosf_mbi kvm_intel iTCO_wdt snd_hda_codec_realtek snd_hda_codec_generic iTCO_vendor_support kvm irqbypass iwlwifi mei_wdt snd_hda_intel crc32_pclmul joydev ghash_clmulni_intel snd_hda_codec cfg80211 dcdbas cryptd snd_hda_core pcspkr snd_hwdep snd_seq snd_seq_device sg i2c_i801 lpc_ich rfkill snd_pcm snd_timer shpchp snd mei_me soundcore mei nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_generic i915 i2c_algo_bit drm_kms_helper syscopyarea ahci sysfillrect libahci sysimgblt fb_sys_fops libata drm crct10dif_pclmul crct10dif_common crc32c_intel r8169 serio_raw mii i2c_core video dm_mirror dm_region_hash dm_log dm_mod
[  298.366423] CPU: 0 PID: 308 Comm: kworker/u4:4 Not tainted 3.10.0-693.el7.x86_64 #1
[  298.381919] Hardware name: Dell Inc. Inspiron 660s/0478VN       , BIOS A07 08/24/2012
[  298.393732] Workqueue: phy0 ieee80211_iface_work [mac80211]
[  298.402528]  0000000000000000 0000000093350718 ffff880035e6b988 ffffffff816a3d91
[  298.412644]  ffff880035e6b9c8 ffffffff810879c8 0000043a2c000000 0000000000000098
[  298.428368]  ffff880116b088c0 ffff8800cb4e2d28 ffff8800d0020700 ffff8800d33a1800
[  298.441490] Call Trace:
[  298.445299]  [<ffffffff816a3d91>] dump_stack+0x19/0x1b
[  298.455836]  [<ffffffff810879c8>] __warn+0xd8/0x100
[  298.461512]  [<ffffffff81087b0d>] warn_slowpath_null+0x1d/0x20
[  298.473323]  [<ffffffffc08266c5>] ieee80211_rx_mgmt_probe_beacon+0x725/0x7a0 [mac80211]
[  298.492622]  [<ffffffffc0826e4f>] ieee80211_ibss_rx_queued_mgmt+0x37f/0x490 [mac80211]
[  298.510154]  [<ffffffff811de581>] ? __slab_free+0x81/0x2f0
[  298.522224]  [<ffffffff811de581>] ? __slab_free+0x81/0x2f0
[  298.529384]  [<ffffffff81098a93>] ? __internal_add_timer+0x113/0x130
[  298.537293]  [<ffffffff81099f95>] ? mod_timer+0x185/0x220
[  298.543112]  [<ffffffff810cd794>] ? update_curr+0x104/0x190
[  298.553117]  [<ffffffff810ca29e>] ? account_entity_dequeue+0xae/0xd0
[  298.562372]  [<ffffffff810cdc7c>] ? dequeue_entity+0x11c/0x5d0
[  298.573615]  [<ffffffffc0827fcc>] ieee80211_iface_work+0x31c/0x490 [mac80211]
[  298.582556]  [<ffffffff810a881a>] process_one_work+0x17a/0x440
[  298.594739]  [<ffffffff810a94e6>] worker_thread+0x126/0x3c0
[  298.602782]  [<ffffffff810a93c0>] ? manage_workers.isra.24+0x2a0/0x2a0
[  298.615648]  [<ffffffff810b098f>] kthread+0xcf/0xe0
[  298.625418]  [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[  298.633415]  [<ffffffff816b4f18>] ret_from_fork+0x58/0x90
[  298.639526]  [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[  298.649099] ---[ end trace b788093dba460389 ]---
Comment 1 Ken Benoit 2017-08-10 09:54:41 EDT
Here is the Fedora 26 version of the warning message:

[   97.389948] ------------[ cut here ]------------
[   97.389994] WARNING: CPU: 1 PID: 106 at net/mac80211/ibss.c:1084 ieee80211_rx_mgmt_probe_beacon+0x6f8/0x770 [mac80211]
[   97.389995] Modules linked in: sunrpc arc4 iwldvm mac80211 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass iwlwifi snd_hda_codec_hdmi iTCO_wdt snd_hda_codec_realtek snd_hda_codec_generic joydev iTCO_vendor_support snd_hda_intel mei_wdt crct10dif_pclmul snd_hda_codec crc32_pclmul dcdbas cfg80211 dell_smm_hwmon snd_hda_core ghash_clmulni_intel r8169 intel_cstate i2c_i801 intel_uncore snd_hwdep mii intel_rapl_perf snd_seq snd_seq_device rfkill lpc_ich snd_pcm snd_timer snd mei_me soundcore mei shpchp tpm_tis tpm_tis_core tpm xfs libcrc32c i915 i2c_algo_bit drm_kms_helper crc32c_intel drm video
[   97.390039] CPU: 1 PID: 106 Comm: kworker/u4:4 Not tainted 4.11.11-300.fc26.x86_64 #1
[   97.390040] Hardware name: Dell Inc. Inspiron 660s/0478VN       , BIOS A07 08/24/2012
[   97.390058] Workqueue: phy0 ieee80211_iface_work [mac80211]
[   97.390060] Call Trace:
[   97.390066]  dump_stack+0x63/0x84
[   97.390070]  __warn+0xcb/0xf0
[   97.390073]  warn_slowpath_null+0x1d/0x20
[   97.390089]  ieee80211_rx_mgmt_probe_beacon+0x6f8/0x770 [mac80211]
[   97.390106]  ieee80211_ibss_rx_queued_mgmt+0x17b/0x450 [mac80211]
[   97.390111]  ? __slab_free+0x14c/0x2d0
[   97.390116]  ? account_entity_enqueue+0xd8/0x100
[   97.390118]  ? __slab_free+0x14c/0x2d0
[   97.390121]  ? __slab_free+0x14c/0x2d0
[   97.390123]  ? __slab_free+0x14c/0x2d0
[   97.390126]  ? skb_free_head+0x21/0x30
[   97.390129]  ? account_entity_dequeue+0xab/0xe0
[   97.390131]  ? dequeue_entity+0xed/0x4a0
[   97.390133]  ? pick_next_task_fair+0x131/0x550
[   97.390137]  ? __switch_to+0x225/0x460
[   97.390152]  ieee80211_iface_work+0x2e1/0x460 [mac80211]
[   97.390155]  process_one_work+0x19e/0x470
[   97.390157]  worker_thread+0x4e/0x4a0
[   97.390161]  kthread+0x125/0x140
[   97.390163]  ? process_one_work+0x470/0x470
[   97.390166]  ? kthread_park+0x90/0x90
[   97.390169]  ret_from_fork+0x25/0x30
[   97.390172] ---[ end trace be2d1041333f9f58 ]---

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