On 29/04/2023 06:35, Yun Lu wrote: > At 2023-04-29 01:06:03, "Larry Finger" <Larry.Finger@xxxxxxxxxxxx> wrote: >> On 4/27/23 23:11, wo wrote: >>> [ 149.595642] [pid:7,cpu6,kworker/u16:0,0]BEFORE: REG_RCR differs from regrcr: >>> 0x1830613 insted of 0x7000604e >>> [ 160.676422] [pid:237,cpu6,kworker/u16:5,3]BEFORE: REG_RCR differs from >>> regrcr: 0x70006009 insted of 0x700060ce >>> [ 327.234588] [pid:7,cpu7,kworker/u16:0,5]BEFORE: REG_RCR differs from >> regrcr: 0x1830d33 insted of 0x7000604e >> >> >> My patch was messed up, but it got the information that I wanted, which is shown >> in the quoted lines above. One of these differs only in the low-order byte, >> while the other 2 are completely different. Strange! >> >> It is possible that there is a firmware error. My system, which does not show >> the problem, reports the following: >> >> [54130.741148] usb 3-6: RTL8192CU rev A (TSMC) romver 0, 2T2R, TX queues 2, >> WiFi=1, BT=0, GPS=0, HI PA=0 >> [54130.741153] usb 3-6: RTL8192CU MAC: xx:xx:xx:xx:xx:xx >> [54130.741155] usb 3-6: rtl8xxxu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin >> [54130.742301] usb 3-6: Firmware revision 88.2 (signature 0x88c1) >> >> Which firmware does your unit use? > > The firmware verion we used is 80.0 (signature 0x88c1) > [ 903.873107] [pid:14,cpu0,kworker/0:1,2]usb 1-1.2: RTL8192CU rev A (TSMC) 2T2R, TX queues 2, WiFi=1, BT=0, GPS=0, HI PA=0 > [ 903.873138] [pid:14,cpu0,kworker/0:1,3]usb 1-1.2: RTL8192CU MAC: 08:be:xx:xx:xx:xx > [ 903.873138] [pid:14,cpu0,kworker/0:1,4]usb 1-1.2: rtl8xxxu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin > [ 903.873474] [pid:14,cpu0,kworker/0:1,5]usb 1-1.2: Firmware revision 80.0 (signature 0x88c1) > >> >> Attached is a new test patch. When it logs a CORRUPTED value, I would like to >> know what task is attached to the pid listed in the message. Note that the two >> instances where the entire word was wrong came from pid:7. >> >> Could improper locking could produce these results? >> >> Larry > > Apply your new patch, then turn on/off the wireless network switch on the network control panel serverl loops. > The log shows: > [ 85.384429] [pid:221,cpu6,kworker/u16:6,5]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x70006009 insted of 0x700060ce > [ 121.681976] [pid:216,cpu6,kworker/u16:3,0]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x70006009 insted of 0x700060ce > [ 144.416992] [pid:217,cpu6,kworker/u16:4,1]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x70006009 insted of 0x700060ce > > And if we up/down the interface serverl loops as follows: > ifconfig wlx08bexxxxxx down > sleep 1 > ifconfig wlx08bexxxxxx up > sleep 10 > The log shows: > [ 282.112335] [2023:04:29 10:30:34][pid:95,cpu6,kworker/u16:1,3]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x1832e13 insted of 0x7000604e > [ 293.311462] [2023:04:29 10:30:45][pid:217,cpu7,kworker/u16:4,9]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x1830e72 insted of 0x7000604e > [ 304.435089] [2023:04:29 10:30:56][pid:217,cpu6,kworker/u16:4,9]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x1830ed3 insted of 0x7000604e > [ 315.532257] [2023:04:29 10:31:07][pid:95,cpu7,kworker/u16:1,8]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x7000604e insted of 0x7000604e > [ 324.114379] [2023:04:29 10:31:16][pid:221,cpu6,kworker/u16:6,7]REG_RCR corrupted in rtl8xxxu_configure_filter: 0x1832e14 insted of 0x7000604e > > We also update the firmware verion to 88.2, and the test results are the same as above. > > Thank you for helping debug this issue, which seems to be related to specific devices. > > Yun Lu > > > > There was this bug report about phantom MAC addresses with the RTL8188CUS: https://lore.kernel.org/linux-wireless/a31d9500-73a3-f890-bebd-d0a4014f87da@xxxxxxxxxxxxxxxxx/ See the pcap file. I wonder if it's related?
