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Date:	Thu, 23 Oct 2014 21:09:14 +0200
From:	Arnd Hannemann <arnd@...dnet.de>
To:	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:	ilw@...ux.intel.com, linux-kernel@...r.kernel.org
Subject: WARNING: drivers/net/wireless/iwlwifi/mvm/tx.c:197 iwl_mvm_set_tx_params+0x5f4/0x630
 [iwlmvm]()

Hi,

on recent Linus git, I regulary get the following backtrace (since 3.17 around or so).
HW is Intel Corporation Wireless 7260 (rev 83)

[ 1774.340980] ------------[ cut here ]------------
[ 1774.341003] WARNING: CPU: 2 PID: 2402 at /home/arnd/Projekte/kernel/linux-2.6/drivers/net/wireless/iwlwifi/mvm/tx.c:197 iwl_mvm_set_tx_params+0x5f4/0x630 [iwlmvm]()
[ 1774.341004] Got an HT rate for a non data frame 0x8
[ 1774.341005] Modules linked in: ccm xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables dm_crypt cdc_ncm uvcvideo usbnet videobuf2_vmalloc videobuf2_memops mii videobuf2_core cdc_wdm cdc_acm v4l2_common videodev media btusb deflate ctr twofish_generic twofish_x86_64_3way twofish_x86_64 twofish_common camellia_generic camellia_x86_64 serpent_sse2_x86_64 serpent_generic xts blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des3_ede_x86_64 des_generic cmac xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo rfcomm bnep bluetooth arc4 binfmt_misc snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi x86_pkg_temp_thermal coretemp kvm_intel dm_multipath kvm ghash_clmulni_intel aesni_intel aes_x86_64 ablk_helper cryptd lrw gf128mul glue_helper snd_hda_intel microcode snd_hda_controller joydev serio_raw iwlmvm snd_hda_codec lpc_ich mac80211 snd_hwdep wmi thinkpad_
 acpi nvra
m tpm_tis snd_pcm iwlwifi cfg80211 snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd xhci_pci xhci_hcd soundcore btrfs xor raid6_pq rtsx_pci_sdmmc rtsx_pci psmouse i915 i2c_algo_bit drm_kms_helper ahci libahci e1000e ptp drm pps_core video
[ 1774.341060] CPU: 2 PID: 2402 Comm: wpa_supplicant Tainted: P               3.18.0-rc1aha+ #1
[ 1774.341061] Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET79WW (2.29 ) 09/03/2014
[ 1774.341063]  0000000000000009 ffff880302b93728 ffffffff8168e85a 0000000000000000
[ 1774.341065]  ffff880302b93778 ffff880302b93768 ffffffff8104c5d1 ffff880302b937d8
[ 1774.341067]  ffff8802e4a82480 ffff8800a520b026 0000000000000000 ffff88030d7f9a88
[ 1774.341069] Call Trace:
[ 1774.341074]  [<ffffffff8168e85a>] dump_stack+0x46/0x58
[ 1774.341078]  [<ffffffff8104c5d1>] warn_slowpath_common+0x81/0xa0
[ 1774.341080]  [<ffffffff8104c636>] warn_slowpath_fmt+0x46/0x50
[ 1774.341089]  [<ffffffffc06f97a4>] iwl_mvm_set_tx_params+0x5f4/0x630 [iwlmvm]
[ 1774.341095]  [<ffffffffc06f9a24>] iwl_mvm_tx_skb+0x54/0x350 [iwlmvm]
[ 1774.341101]  [<ffffffffc06f152f>] iwl_mvm_mac_tx+0xaf/0x1b0 [iwlmvm]
[ 1774.341104]  [<ffffffff8104c7c6>] ? put_online_cpus+0x56/0x80
[ 1774.341120]  [<ffffffffc060cf91>] __ieee80211_tx+0x271/0x380 [mac80211]
[ 1774.341133]  [<ffffffffc060f7ca>] ieee80211_tx+0xca/0x100 [mac80211]
[ 1774.341144]  [<ffffffffc060fa01>] ieee80211_xmit+0xa1/0x100 [mac80211]
[ 1774.341155]  [<ffffffffc061033a>] ieee80211_subif_start_xmit+0x66a/0xd10 [mac80211]
[ 1774.341160]  [<ffffffff8159a019>] dev_hard_start_xmit+0x169/0x3d0
[ 1774.341163]  [<ffffffff815ba362>] sch_direct_xmit+0xe2/0x1e0
[ 1774.341166]  [<ffffffff8159a4c7>] __dev_queue_xmit+0x247/0x560
[ 1774.341168]  [<ffffffff8159a7f0>] dev_queue_xmit+0x10/0x20
[ 1774.341171]  [<ffffffff81675c5d>] packet_sendmsg+0xe8d/0x1130
[ 1774.341174]  [<ffffffff8157f132>] ? sock_recvmsg+0xa2/0xd0
[ 1774.341176]  [<ffffffff8157ee43>] sock_sendmsg+0x93/0xd0
[ 1774.341179]  [<ffffffff811aee00>] ? evict+0x110/0x180
[ 1774.341182]  [<ffffffff811a9c2b>] ? __d_free+0x2b/0x50
[ 1774.341185]  [<ffffffff811b0f33>] ? __fdget+0x13/0x20
[ 1774.341187]  [<ffffffff8157eff1>] SYSC_sendto+0x121/0x1c0
[ 1774.341189]  [<ffffffff81580032>] ? __sys_recvmsg+0x42/0x80
[ 1774.341192]  [<ffffffff8157fb0e>] SyS_sendto+0xe/0x10
[ 1774.341194]  [<ffffffff81695452>] system_call_fastpath+0x12/0x17
[ 1774.341195] ---[ end trace f25bbefa3f5a7aa1 ]---

Best regards
Arnd
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