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Bug 1065663 - [abrt] WARNING: CPU: 0 PID: 6690 at drivers/net/wireless/iwlwifi/dvm/sta.c:880 iwl_send_lq_cmd+0x267/0x270 [iwldvm]()
Summary: [abrt] WARNING: CPU: 0 PID: 6690 at drivers/net/wireless/iwlwifi/dvm/sta.c:88...
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 20
Hardware: x86_64
OS: Unspecified
Target Milestone: ---
Assignee: fedora-kernel-wireless-iwl
QA Contact: Fedora Extras Quality Assurance
Whiteboard: abrt_hash:9020a8ca0938008b9d9a6e3ac1a...
Depends On:
TreeView+ depends on / blocked
Reported: 2014-02-15 14:26 UTC by Emmanuel Pacaud
Modified: 2015-08-17 12:24 UTC (History)
8 users (show)

Fixed In Version: kernel-3.13.6-100.fc19
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-03-10 06:51:21 UTC

Attachments (Terms of Use)
File: dmesg (deleted)
2014-02-15 14:26 UTC, Emmanuel Pacaud
no flags Details
Fix station leak whena assoc fails (deleted)
2014-02-18 08:36 UTC, Emmanuel Grumbach
no flags Details | Diff

Description Emmanuel Pacaud 2014-02-15 14:26:20 UTC
Additional info:
reporter:       libreport-2.1.12
WARNING: CPU: 0 PID: 6690 at drivers/net/wireless/iwlwifi/dvm/sta.c:880 iwl_send_lq_cmd+0x267/0x270 [iwldvm]()
Modules linked in: xfs libcrc32c usb_storage tcp_lp nls_utf8 vfat fat isofs fuse ip6t_rpfilter ip6t_REJECT xt_conntrack bnep bluetooth ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw mmc_block snd_hda_codec_hdmi snd_hda_codec_idt gpio_ich iTCO_wdt iTCO_vendor_support coretemp dell_wmi kvm_intel sparse_keymap snd_hda_intel kvm snd_hda_codec snd_hwdep snd_seq arc4 snd_seq_device dell_laptop iwldvm dcdbas snd_pcm mac80211 microcode joydev serio_raw uvcvideo videobuf2_vmalloc i2c_i801 videobuf2_memops videobuf2_core iwlwifi videodev snd_page_alloc media e1000e snd_timer cfg80211 snd soundcore sdhci_pci sdhci lpc_ich mmc_core mfd_core rfkill ptp shpchp pps_core wmi acpi_cpufreq binfmt_misc nfsd auth_rpcgss nfs_acl lockd sunrpc firewire_ohci i915 firewire_core i2c_algo_bit crc_itu_t drm_kms_helper drm i2c_core video
CPU: 0 PID: 6690 Comm: kworker/u4:1 Not tainted 3.12.10-300.fc20.x86_64 #1
Hardware name: Dell Inc. Latitude E4300                  /      , BIOS A22 04/13/2011
Workqueue: iwlwifi iwl_bg_scan_completed [iwldvm]
 0000000000000009 ffff8800a7811b48 ffffffff81667ed5 0000000000000000
 ffff8800a7811b80 ffffffff8106903d ffff8800d4fa17d0 00000000ffffffea
 ffff8800d4fa2650 ffff8800d4fa2650 ffff8800a7811c4c ffff8800a7811b90
Call Trace:
 [<ffffffff81667ed5>] dump_stack+0x45/0x56
 [<ffffffff8106903d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8106911a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa050ac27>] iwl_send_lq_cmd+0x267/0x270 [iwldvm]
 [<ffffffffa050aeee>] iwl_restore_stations+0x2be/0x3a0 [iwldvm]
 [<ffffffffa0511939>] iwlagn_commit_rxon+0x829/0xe10 [iwldvm]
 [<ffffffffa0442265>] ? ieee80211_queue_delayed_work+0x45/0x50 [mac80211]
 [<ffffffffa0512936>] iwlagn_post_scan+0x96/0xb0 [iwldvm]
 [<ffffffffa050f9c4>] iwl_process_scan_complete+0x114/0x180 [iwldvm]
 [<ffffffffa050fca8>] iwl_bg_scan_completed+0x28/0x40 [iwldvm]
 [<ffffffff81083456>] process_one_work+0x176/0x430
 [<ffffffff8108408b>] worker_thread+0x11b/0x3a0
 [<ffffffff81083f70>] ? rescuer_thread+0x350/0x350
 [<ffffffff8108af30>] kthread+0xc0/0xd0
 [<ffffffff8108ae70>] ? insert_kthread_work+0x40/0x40
 [<ffffffff81676dfc>] ret_from_fork+0x7c/0xb0
 [<ffffffff8108ae70>] ? insert_kthread_work+0x40/0x40

Comment 1 Emmanuel Pacaud 2014-02-15 14:26:31 UTC
Created attachment 863590 [details]
File: dmesg

Comment 2 Emmanuel Grumbach 2014-02-18 08:36:28 UTC
Created attachment 864414 [details]
Fix station leak whena assoc fails

I am not sure this will fix it, but it is definitely worth to try it.
I think it is right anyway.

Comment 3 Stanislaw Gruszka 2014-02-19 10:02:20 UTC
Thanks for patch Emmanuel . I assume you applied it internally and will be pushed upstream soon.

Josh, please apply above patch as fix for this bug.

Comment 4 Emmanuel Grumbach 2014-02-19 10:49:28 UTC
Well... While I think the patch is right - it hasn't been reviewed internally yet, hence, it is not yet applied internally.

I am not sure it solves the bug, but it is definitely something related to this...

Comment 5 Stanislaw Gruszka 2014-02-19 11:57:23 UTC
I think bug is not reproducible, so it is better apply patch to fedora release and check if warning will happen again. But if warning is reproducible I can prepare test kernel with the patch.

Emmanuel (Pacaud :-), is this warning reproducible for you ?

Comment 6 Emmanuel Grumbach 2014-02-19 12:02:09 UTC
FWIW: I saw lots of failed assocaion attempts in the log - in case that helps to reproduction...

Comment 7 Josh Boyer 2014-03-07 14:09:02 UTC
Looks like this went upstream as ec6f678c74dbdb06a6a775bbb00f1d26c17c404b.  Sorry for not grabbing it sooner.  I'll get it in today (though I'm surprised it didn't make 3.13.6).

Comment 8 Josh Boyer 2014-03-07 16:05:20 UTC
Fixed in Fedora git.  Thanks again.

Comment 9 Fedora Update System 2014-03-07 22:52:52 UTC
kernel-3.13.6-100.fc19 has been submitted as an update for Fedora 19.

Comment 10 Fedora Update System 2014-03-07 22:54:01 UTC
kernel-3.13.6-200.fc20 has been submitted as an update for Fedora 20.

Comment 11 Fedora Update System 2014-03-09 04:40:20 UTC
Package kernel-3.13.6-100.fc19:
* should fix your issue,
* was pushed to the Fedora 19 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing kernel-3.13.6-100.fc19'
as soon as you are able to, then reboot.
Please go to the following url:
then log in and leave karma (feedback).

Comment 12 Fedora Update System 2014-03-10 06:51:21 UTC
kernel-3.13.6-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 Fedora Update System 2014-03-15 15:24:51 UTC
kernel-3.13.6-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 14 Emmanuel Pacaud 2015-08-17 12:24:27 UTC
I don't own this hardware anymore, so I can not say if it still happens.

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