kernel: WARNING: at drivers/net/wireless/iwlwifi/pcie/tx.c:1484 iwl_trans_pcie_send_hcmd+0x418/0x480 [iwlwifi]

Solution Unverified - Updated -

Issue

  • Using Intel WiFi, a message is logged by the system as follows:
kernel: WARNING: at drivers/net/wireless/iwlwifi/pcie/tx.c:1484 iwl_trans_pcie_send_hcmd+0x418/0x480 [iwlwifi]
:Call Trace:
:[<ffffffff815e20bb>] dump_stack+0x19/0x1b
:[<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80
:[<ffffffff8105e00a>] warn_slowpath_null+0x1a/0x20
:[<ffffffffa07640b8>] iwl_trans_pcie_send_hcmd+0x418/0x480 [iwlwifi]
:[<ffffffffa08d3bbf>] iwl_dvm_send_cmd+0x4f/0x130 [iwldvm]
:[<ffffffffa08d3fef>] iwl_dvm_send_cmd_pdu+0x4f/0x70 [iwldvm]
:[<ffffffffa08daf1f>] iwl_power_set_mode+0xdf/0x1e0 [iwldvm]
:[<ffffffffa08db0da>] iwl_power_update_mode+0xba/0x190 [iwldvm]
:[<ffffffffa08de349>] iwlagn_commit_rxon+0xae9/0xbc0 [iwldvm]
:[<ffffffffa08de694>] iwlagn_mac_config+0x224/0x320 [iwldvm]
:[<ffffffffa08238e2>] ieee80211_hw_config+0x92/0x320 [mac80211]
:[<ffffffffa084c4fe>] ieee80211_recalc_smps_chanctx+0xbe/0x320 [mac80211]
:[<ffffffffa084aa80>] ieee80211_recalc_smps+0x40/0x80 [mac80211]
:[<ffffffffa0832805>] ieee80211_recalc_smps_work+0x15/0x20 [mac80211]
:[<ffffffff8107e03b>] process_one_work+0x17b/0x460
:[<ffffffff8107ee0b>] worker_thread+0x11b/0x400
  • No problems are reported at the time of the warning message, only the message is logged.

Environment

  • Red Hat Enterprise Linux 7.0
  • kernel-3.10.0-123.6.3.el7
  • Intel WiFi network interface card (NIC)

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