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Bug 1061231

Summary: [abrt] WARNING: at drivers/net/wireless/iwlwifi/pcie/tx.c:1066 iwl_trans_pcie_txq_enable+0x2d1/0x390 [iwlwifi]()
Product: Red Hat Enterprise Linux 7 Reporter: Juraj Marko <jmarko>
Component: kernelAssignee: Stanislaw Gruszka <sgruszka>
Status: CLOSED CURRENTRELEASE QA Contact: Ken Benoit <kbenoit>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0CC: dberry, jamorgan, jbainbri, jyundt, mcepl, nlevinki
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:bd52ec84ac71f2fc2d02517387d6368227615de0
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-26 09:41:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1133060, 1205790    
Attachments:
Description Flags
File: dmesg none

Description Juraj Marko 2014-02-04 15:26:36 UTC 
Additional info:
reporter:       libreport-2.1.11
WARNING: at drivers/net/wireless/iwlwifi/pcie/tx.c:1066 iwl_trans_pcie_txq_enable+0x2d1/0x390 [iwlwifi]()
queue 11 already used - expect issues
Modules linked in: vfat fat usb_storage fuse ipt_MASQUERADE xt_CHECKSUM tun ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack 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 iptable_filter ip_tables rfcomm bnep btusb bluetooth coretemp kvm_intel uvcvideo kvm videobuf2_vmalloc videobuf2_memops videobuf2_core crct10dif_pclmul videodev crc32_pclmul arc4 crc32c_intel ghash_clmulni_intel aesni_intel iwldvm mac80211 lrw gf128mul glue_helper snd_hda_codec_hdmi ablk_helper snd_hda_codec_realtek snd_hda_codec_generic cryptd iwlwifi snd_hda_intel snd_hda_codec snd_hwdep sdhci_pci sdhci mmc_core iTCO_wdt iTCO_vendor_support lpc_ich thinkpad_acpi cfg80211 rfkill e1000e snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer mfd_core serio_raw wmi shpchp microcode snd soundcore ptp pcspkr pps_core i2c_i801 mperf dm_mirror dm_region_hash dm_log dm_mod nfsd auth_rpcgss nfs_acl lockd sunrpc uinput ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_common i915 ahci libahci i2c_algo_bit libata drm_kms_helper drm i2c_core video
CPU: 2 PID: 24242 Comm: kworker/u16:1 Not tainted 3.10.0-80.el7.x86_64 #1
Hardware name: LENOVO 2325F51/2325F51, BIOS G2ET86WW (2.06 ) 11/13/2012
Workqueue: phy0 ieee80211_iface_work [mac80211]
 0000000000000009 ffff8801a1727b50 ffffffff815bf1cc ffff8801a1727b88
 ffffffff81059c71 000000000000000b ffff880210d31810 ffff88020f758000
 0000000000000069 0000000000000000 ffff8801a1727be8 ffffffff81059cdc
Call Trace:
 [<ffffffff815bf1cc>] dump_stack+0x19/0x1b
 [<ffffffff81059c71>] warn_slowpath_common+0x61/0x80
 [<ffffffff81059cdc>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffffa055b3e1>] iwl_trans_pcie_txq_enable+0x2d1/0x390 [iwlwifi]
 [<ffffffffa065df5a>] iwlagn_tx_agg_oper+0xfa/0x1c0 [iwldvm]
 [<ffffffffa065a7e0>] iwlagn_mac_ampdu_action+0x90/0x1f0 [iwldvm]
 [<ffffffffa05bb4be>] ieee80211_agg_tx_operational+0xae/0x200 [mac80211]
 [<ffffffffa05bc413>] ieee80211_process_addba_resp+0x163/0x170 [mac80211]
 [<ffffffffa05c075f>] ieee80211_iface_work+0x2ef/0x340 [mac80211]
 [<ffffffff810786ab>] process_one_work+0x17b/0x460
 [<ffffffff8107945b>] worker_thread+0x11b/0x400
 [<ffffffff81079340>] ? rescuer_thread+0x3e0/0x3e0
 [<ffffffff8107fcb0>] kthread+0xc0/0xd0
 [<ffffffff8107fbf0>] ? kthread_create_on_node+0x110/0x110
 [<ffffffff815cef6c>] ret_from_fork+0x7c/0xb0
 [<ffffffff8107fbf0>] ? kthread_create_on_node+0x110/0x110
Comment 1 Juraj Marko 2014-02-04 15:26:46 UTC 
Created attachment 859204 [details]
File: dmesg
Comment 2 Stanislaw Gruszka 2014-02-05 13:46:27 UTC 
Is this problem reproducible for you or happened just once ?
Comment 4 Juraj Marko 2014-02-27 15:15:21 UTC 
it happened once
Comment 5 Stanislaw Gruszka 2014-03-11 07:42:28 UTC 
Since bug is not reproducible I'm not sure what can be done here.

Before the warning there are those messages:

[33403.242365] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 2
[33403.242373] iwlwifi 0000:03:00.0: Current SW read_ptr 228 write_ptr 40
[33403.242435] iwl data: 00000000: 00 00 00 00 00 00 00 00 f0 ff 0f 00 00 00 00 00  ................
[33403.242472] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x00000000
[33403.242485] iwlwifi 0000:03:00.0: FH TRBs(1) = 0x801020f3
[33403.242498] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x00000000
[33403.242510] iwlwifi 0000:03:00.0: FH TRBs(3) = 0x80300067
[33403.242523] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x00000000
[33403.242536] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x00000000
[33403.242549] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x00000000
[33403.242562] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x00709025
[33403.242639] iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [104,104]

which seems to indicate firmware hang.
Comment 6 Emmanuel Grumbach 2014-03-11 13:48:16 UTC 
I guess that disabling TX AMPDU can help
Comment 7 RHEL Program Management 2014-03-22 06:06:13 UTC 
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Comment 10 Emmanuel Grumbach 2014-10-20 06:42:08 UTC 
should be fixed by https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/iwlwifi-fixes.git/commit/?id=7496d1162b8062cc360838290ac6680c2a196f22

Removing Intel for now.
Comment 11 Jamie Bainbridge 2014-10-20 23:23:58 UTC 
Can we pull the above commit into 7.1?
Comment 12 Stanislaw Gruszka 2014-10-21 09:23:49 UTC 
That commit will be applied on RHEL7.1 together with other -stable fixes for linux-3.16.
Comment 13 Stanislaw Gruszka 2015-03-26 09:41:40 UTC 
Proposed fix from comment 10 is Alfred applied on RHEL7 kernel:

commit 9c553f35dbd9e20cc2fa41e5c4c451aeb24fcfd1
Author: Stanislaw Gruszka <sgruszka>
Date:   Wed Dec 10 10:29:34 2014 -0500

    [wireless] iwlwifi/dvm: drop non VO frames when flushing

Closing with current release status ...