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
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next reply other threads:[~2010-09-14 14:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-14 14:28 Michael S. Tsirkin [this message]
[not found] ` <20100914142814.GA8744-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-09-14 14:36 ` 2.6.36-rc4/iwl: warning triggered in net/mac80211/scan.c:266 Johannes Berg
2010-09-14 15:14 ` Michael S. Tsirkin
2010-09-14 19:43 ` Johannes Berg
2010-09-16 20:05 ` Maciej Rutecki
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=20100914142814.GA8744@redhat.com \
--to=mst-h+wxahxf7alqt0dzr+alfa@public.gmane.org \
--cc=davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org \
--cc=ilw-VuQAYsv1563Yd54FQh9/CA@public.gmane.org \
--cc=johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org \
--cc=netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=reinette.chatre-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org \
--cc=wey-yi.w.guy-ral2JQCrhuEAvxtiuMwx3w@public.gmane.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).