Hello,
I just started receiving these mysterious error messages on each
transmitted packet:
Jun 22 19:48:21 nemi kernel: [255522.415447] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
Jun 22 19:48:21 nemi kernel: [255522.445200] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
Jun 22 19:48:21 nemi kernel: [255522.448130] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
Jun 22 19:48:21 nemi kernel: [255522.454865] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
Jun 22 19:48:21 nemi kernel: [255522.474708] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
Jun 22 19:48:21 nemi kernel: [255522.486878] iwlwifi 0000:03:00.0: GF was set with SGI:SISO
which seems to originate from this code in
drivers/net/wireless/iwlwifi/dvm/rs.c :
if (use_green) {
rate_n_flags |= RATE_MCS_GF_MSK;
if (is_siso(tbl->lq_type) && tbl->is_SGI) {
rate_n_flags &= ~RATE_MCS_SGI_MSK;
IWL_ERR(priv, "GF was set with SGI:SISO\n");
}
}
But I do fail to see what I as an user is expected to do about this...
Could the message be improved with some end user guidance? And it
should obviously be rate-limited.
I am using the driver from 3.5-rc2. The initial driver messages are:
bjorn@nemi:~$ grep iwl /var/log/dmesg
[ 11.771797] iwlwifi: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[ 11.773943] iwlwifi: Copyright(c) 2003-2012 Intel Corporation
[ 11.835304] bus: 'pci': add driver iwlwifi
[ 11.835340] bus: 'pci': driver_probe_device: matched device 0000:03:00.0 with driver iwlwifi
[ 11.835344] bus: 'pci': really_probe: probing driver iwlwifi with device 0000:03:00.0
[ 11.835422] iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
[ 11.835493] iwlwifi 0000:03:00.0: pci_resource_base = ffffc900057a4000
[ 11.835562] iwlwifi 0000:03:00.0: HW Revision ID = 0x0
[ 11.853318] iwlwifi 0000:03:00.0: irq 45 for MSI/MSI-X
[ 11.853366] driver: '0000:03:00.0': driver_bound: bound to device 'iwlwifi'
[ 11.853425] firmware 0000:03:00.0: firmware: requesting iwlwifi-5000-5.ucode
[ 11.856712] bus: 'pci': really_probe: bound device 0000:03:00.0 to driver iwlwifi
[ 12.521925] iwlwifi 0000:03:00.0: loaded firmware version 8.83.5.1 build 33692
[ 12.522628] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 12.522675] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[ 12.522719] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[ 12.522770] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
[ 12.522817] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
[ 12.522861] iwlwifi 0000:03:00.0: Detected Intel(R) Ultimate N WiFi Link 5300 AGN, REV=0x24
[ 12.522989] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
[ 12.550242] iwlwifi 0000:03:00.0: device EEPROM VER=0x11e, CALIB=0x4
[ 12.550300] iwlwifi 0000:03:00.0: Device SKU: 0xF0
[ 12.550339] iwlwifi 0000:03:00.0: Valid Tx ant: 0x7, Valid Rx ant: 0x7
[ 12.550406] iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[ 12.578444] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 30.708681] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
[ 30.709069] iwlwifi 0000:03:00.0: Radio type=0x0-0x2-0x0
[ 30.860998] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S
[ 30.865388] iwlwifi 0000:03:00.0: Radio type=0x0-0x2-0x0
This is the first time I notice this issue, so I don't think it's very
reproducible.
Thanks,
Bjørn
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