From: "Michael S. Tsirkin" <mst@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: "John W. Linville" <linville@tuxdriver.com>,
Johannes Berg <johannes@sipsolutions.net>,
"David S. Miller" <davem@davemloft.net>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
Reinette Chatre <reinette.chatre@intel.com>,
Wey-Yi Guy <wey-yi.w.guy@intel.com>,
Intel Linux Wireless <ilw@linux.intel.com>
Subject: 2.6.36-rc4/iwl: warning triggered in net/mac80211/scan.c:266
Date: Tue, 14 Sep 2010 16:28:15 +0200 [thread overview]
Message-ID: <20100914142814.GA8744@redhat.com> (raw)
I am running 2.6.36-rc4 on T60 with an iwlagn wireless card:
03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection
I was compiling a large file which stressed the box heavily, and the
following warning in net/mac80211/scan.c triggered:
/*
* It's ok to abort a not-yet-running scan (that
* we have one at all will be verified by checking
* local->scan_req next), but not to complete it
* successfully.
*/
if (WARN_ON(!local->scanning && !aborted))
aborted = true;
dmesg below:
[84379.361297] ------------[ cut here ]------------
[84379.361307] WARNING: at net/mac80211/scan.c:266 ieee80211_scan_completed+0x43/0x17f()
[84379.361311] Hardware name: 2241B48
[84379.361313] Modules linked in: tun iwlagn kvm_intel kvm iwlcore e1000e thinkpad_acpi [last unloaded: scsi_wait_scan]
[84379.361325] Pid: 8254, comm: kworker/u:0 Not tainted 2.6.36-rc4-mst #96
[84379.361328] Call Trace:
[84379.361334] [<ffffffff815d1399>] ? ieee80211_scan_completed+0x43/0x17f
[84379.361340] [<ffffffff81042046>] warn_slowpath_common+0x80/0x99
[84379.361354] [<ffffffffa005d8e7>] ? iwl_generic_cmd_callback+0x0/0xe4 [iwlcore]
[84379.361359] [<ffffffff81042074>] warn_slowpath_null+0x15/0x17
[84379.361363] [<ffffffff815d1399>] ieee80211_scan_completed+0x43/0x17f
[84379.361374] [<ffffffffa0065212>] iwl_bg_scan_completed+0x1ce/0x1d7 [iwlcore]
[84379.361380] [<ffffffff81057153>] process_one_work+0x1e2/0x301
[84379.361391] [<ffffffffa0065044>] ? iwl_bg_scan_completed+0x0/0x1d7 [iwlcore]
[84379.361395] [<ffffffff8105752c>] worker_thread+0x130/0x243
[84379.361400] [<ffffffff810573fc>] ? worker_thread+0x0/0x243
[84379.361404] [<ffffffff8105bc1b>] kthread+0x81/0x89
[84379.361409] [<ffffffff81003914>] kernel_thread_helper+0x4/0x10
[84379.361413] [<ffffffff8105bb9a>] ? kthread+0x0/0x89
[84379.361417] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10
[84379.361420] ---[ end trace c5ebbd902daa4ea8 ]---
[84379.361422] ------------[ cut here ]------------
[84379.361426] WARNING: at net/mac80211/scan.c:269 ieee80211_scan_completed+0x62/0x17f()
[84379.361429] Hardware name: 2241B48
[84379.361431] Modules linked in: tun iwlagn kvm_intel kvm iwlcore e1000e thinkpad_acpi [last unloaded: scsi_wait_scan]
[84379.361441] Pid: 8254, comm: kworker/u:0 Tainted: G W 2.6.36-rc4-mst #96
[84379.361461] Call Trace:
[84379.361464] [<ffffffff815d13b8>] ? ieee80211_scan_completed+0x62/0x17f
[84379.361469] [<ffffffff81042046>] warn_slowpath_common+0x80/0x99
[84379.361479] [<ffffffffa005d8e7>] ? iwl_generic_cmd_callback+0x0/0xe4 [iwlcore]
[84379.361484] [<ffffffff81042074>] warn_slowpath_null+0x15/0x17
[84379.361488] [<ffffffff815d13b8>] ieee80211_scan_completed+0x62/0x17f
[84379.361503] [<ffffffffa0065212>] iwl_bg_scan_completed+0x1ce/0x1d7 [iwlcore]
[84379.361506] [<ffffffff81057153>] process_one_work+0x1e2/0x301
[84379.361512] [<ffffffffa0065044>] ? iwl_bg_scan_completed+0x0/0x1d7 [iwlcore]
[84379.361515] [<ffffffff8105752c>] worker_thread+0x130/0x243
[84379.361517] [<ffffffff810573fc>] ? worker_thread+0x0/0x243
[84379.361519] [<ffffffff8105bc1b>] kthread+0x81/0x89
[84379.361522] [<ffffffff81003914>] kernel_thread_helper+0x4/0x10
[84379.361524] [<ffffffff8105bb9a>] ? kthread+0x0/0x89
[84379.361526] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10
[84379.361528] ---[ end trace c5ebbd902daa4ea9 ]---
Should this happen? Does anyone care?
I am not sure how reproducible this is.
Thanks,
--
MST
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: "John W. Linville"
<linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>,
Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>,
"David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Reinette Chatre
<reinette.chatre-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Wey-Yi Guy <wey-yi.w.guy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Intel Linux Wireless
<ilw-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Subject: 2.6.36-rc4/iwl: warning triggered in net/mac80211/scan.c:266
Date: Tue, 14 Sep 2010 16:28:15 +0200 [thread overview]
Message-ID: <20100914142814.GA8744@redhat.com> (raw)
I am running 2.6.36-rc4 on T60 with an iwlagn wireless card:
03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection
I was compiling a large file which stressed the box heavily, and the
following warning in net/mac80211/scan.c triggered:
/*
* It's ok to abort a not-yet-running scan (that
* we have one at all will be verified by checking
* local->scan_req next), but not to complete it
* successfully.
*/
if (WARN_ON(!local->scanning && !aborted))
aborted = true;
dmesg below:
[84379.361297] ------------[ cut here ]------------
[84379.361307] WARNING: at net/mac80211/scan.c:266 ieee80211_scan_completed+0x43/0x17f()
[84379.361311] Hardware name: 2241B48
[84379.361313] Modules linked in: tun iwlagn kvm_intel kvm iwlcore e1000e thinkpad_acpi [last unloaded: scsi_wait_scan]
[84379.361325] Pid: 8254, comm: kworker/u:0 Not tainted 2.6.36-rc4-mst #96
[84379.361328] Call Trace:
[84379.361334] [<ffffffff815d1399>] ? ieee80211_scan_completed+0x43/0x17f
[84379.361340] [<ffffffff81042046>] warn_slowpath_common+0x80/0x99
[84379.361354] [<ffffffffa005d8e7>] ? iwl_generic_cmd_callback+0x0/0xe4 [iwlcore]
[84379.361359] [<ffffffff81042074>] warn_slowpath_null+0x15/0x17
[84379.361363] [<ffffffff815d1399>] ieee80211_scan_completed+0x43/0x17f
[84379.361374] [<ffffffffa0065212>] iwl_bg_scan_completed+0x1ce/0x1d7 [iwlcore]
[84379.361380] [<ffffffff81057153>] process_one_work+0x1e2/0x301
[84379.361391] [<ffffffffa0065044>] ? iwl_bg_scan_completed+0x0/0x1d7 [iwlcore]
[84379.361395] [<ffffffff8105752c>] worker_thread+0x130/0x243
[84379.361400] [<ffffffff810573fc>] ? worker_thread+0x0/0x243
[84379.361404] [<ffffffff8105bc1b>] kthread+0x81/0x89
[84379.361409] [<ffffffff81003914>] kernel_thread_helper+0x4/0x10
[84379.361413] [<ffffffff8105bb9a>] ? kthread+0x0/0x89
[84379.361417] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10
[84379.361420] ---[ end trace c5ebbd902daa4ea8 ]---
[84379.361422] ------------[ cut here ]------------
[84379.361426] WARNING: at net/mac80211/scan.c:269 ieee80211_scan_completed+0x62/0x17f()
[84379.361429] Hardware name: 2241B48
[84379.361431] Modules linked in: tun iwlagn kvm_intel kvm iwlcore e1000e thinkpad_acpi [last unloaded: scsi_wait_scan]
[84379.361441] Pid: 8254, comm: kworker/u:0 Tainted: G W 2.6.36-rc4-mst #96
[84379.361461] Call Trace:
[84379.361464] [<ffffffff815d13b8>] ? ieee80211_scan_completed+0x62/0x17f
[84379.361469] [<ffffffff81042046>] warn_slowpath_common+0x80/0x99
[84379.361479] [<ffffffffa005d8e7>] ? iwl_generic_cmd_callback+0x0/0xe4 [iwlcore]
[84379.361484] [<ffffffff81042074>] warn_slowpath_null+0x15/0x17
[84379.361488] [<ffffffff815d13b8>] ieee80211_scan_completed+0x62/0x17f
[84379.361503] [<ffffffffa0065212>] iwl_bg_scan_completed+0x1ce/0x1d7 [iwlcore]
[84379.361506] [<ffffffff81057153>] process_one_work+0x1e2/0x301
[84379.361512] [<ffffffffa0065044>] ? iwl_bg_scan_completed+0x0/0x1d7 [iwlcore]
[84379.361515] [<ffffffff8105752c>] worker_thread+0x130/0x243
[84379.361517] [<ffffffff810573fc>] ? worker_thread+0x0/0x243
[84379.361519] [<ffffffff8105bc1b>] kthread+0x81/0x89
[84379.361522] [<ffffffff81003914>] kernel_thread_helper+0x4/0x10
[84379.361524] [<ffffffff8105bb9a>] ? kthread+0x0/0x89
[84379.361526] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10
[84379.361528] ---[ end trace c5ebbd902daa4ea9 ]---
Should this happen? Does anyone care?
I am not sure how reproducible this is.
Thanks,
--
MST
--
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next reply other threads:[~2010-09-14 14:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-14 14:28 Michael S. Tsirkin [this message]
2010-09-14 14:28 ` 2.6.36-rc4/iwl: warning triggered in net/mac80211/scan.c:266 Michael S. Tsirkin
2010-09-14 14:36 ` Johannes Berg
2010-09-14 14:36 ` Johannes Berg
2010-09-14 15:14 ` Michael S. Tsirkin
2010-09-14 19:43 ` Johannes Berg
2010-09-16 20:05 ` Maciej Rutecki
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