Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 7 PID: 1990 at drivers/net/wireless/iwlwifi/mvm/tx.c:190 iwl_mvm_set_tx_params+0x62a/0x720 [iwlmvm]()
Got an HT rate for a non data frame 0xa8
Modules linked in: rfcomm fuse ccm xt_CHECKSUM ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_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 bnep arc4 pn544_mei x86_pkg_temp_thermal mei_phy pn544 coretemp kvm_intel kvm iwlmvm hci iTCO_wdt iTCO_vendor_support nfc mac80211 dell_wmi sparse_keymap uvcvideo crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel videobuf2_vmalloc dell_laptop videobuf2_memops videobuf2_core dcdbas btusb v4l2_common videodev snd_hda_codec_realtek
 iwlwifi bluetooth snd_hda_codec_generic snd_hda_codec_hdmi cfg80211 media hid_multitouch snd_hda_intel snd_hda_controller snd_hda_codec rtsx_pci_ms i2c_i801 rfkill serio_raw memstick lpc_ich snd_seq snd_hwdep snd_seq_device snd_pcm int3403_thermal dell_smo8800 snd_timer mei_me ie31200_edac snd mei edac_core shpchp soundcore nouveau i915 rtsx_pci_sdmmc mmc_core ttm i2c_algo_bit drm_kms_helper mxm_wmi drm rtsx_pci mfd_core video wmi
CPU: 7 PID: 1990 Comm: wpa_supplicant Not tainted 3.17.1-302.fc21.x86_64 #1
Hardware name: Dell Inc. XPS 15 9530/XPS 15 9530, BIOS A02 12/18/2013
 0000000000000000 000000006468a09a ffff8803feb5b808 ffffffff8173dbb1
 ffff8803feb5b850 ffff8803feb5b840 ffffffff81096e8d ffff88040c311a88
 ffff88040990c670 ffff880413cf2426 ffff8800c1e8f800 ffff8803fb783800
Call Trace:
 [<ffffffff8173dbb1>] dump_stack+0x45/0x56
 [<ffffffff81096e8d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81096f0c>] warn_slowpath_fmt+0x5c/0x80
 [<ffffffffa06e5153>] ? iwl_mvm_set_tx_params+0x43/0x720 [iwlmvm]
 [<ffffffffa06e573a>] iwl_mvm_set_tx_params+0x62a/0x720 [iwlmvm]
 [<ffffffffa06e5ab4>] iwl_mvm_tx_skb+0x54/0x400 [iwlmvm]
 [<ffffffffa06dd75f>] iwl_mvm_mac_tx+0xaf/0x1c0 [iwlmvm]
 [<ffffffffa06539c0>] __ieee80211_tx+0x2d0/0x3d0 [mac80211]
 [<ffffffffa065623e>] ieee80211_tx+0xde/0x110 [mac80211]
 [<ffffffffa065647a>] ieee80211_xmit+0x9a/0xf0 [mac80211]
 [<ffffffffa0656c2b>] ieee80211_subif_start_xmit+0x4bb/0xcc0 [mac80211]
 [<ffffffff81630175>] dev_hard_start_xmit+0x335/0x5d0
 [<ffffffff816527f6>] sch_direct_xmit+0xa6/0x210
 [<ffffffff8163061c>] __dev_queue_xmit+0x20c/0x500
 [<ffffffff81630920>] dev_queue_xmit+0x10/0x20
 [<ffffffff81725c09>] packet_sendmsg+0xfb9/0x1100
 [<ffffffff8161374e>] sock_sendmsg+0x9e/0xe0
 [<ffffffff81612529>] ? move_addr_to_user+0xb9/0xe0
 [<ffffffff812283d3>] ? evict+0x103/0x190
 [<ffffffff81222c9f>] ? __d_free+0x3f/0x60
 [<ffffffff81613cf1>] SYSC_sendto+0x121/0x1c0
 [<ffffffff81614d71>] ? __sys_recvmsg+0x51/0x90
 [<ffffffff816147ae>] SyS_sendto+0xe/0x10
 [<ffffffff81744d29>] system_call_fastpath+0x16/0x1b

Potential duplicate: bug 1151836