Info: kernel trace on Raspberry PI 3+

[hidden-primary-net]

Hi,

I just want to let you know of a kernel trace I stumbled upon when using my new "Carantec" USB stick for the very first time:

[ 2352.435642] ------------[ cut here ]------------
[ 2352.436254] WARNING: CPU: 0 PID: 911 at /usr/src/rtl88x2bu-5.6.1/hal/hal_com.c:11513 rtw_lps_state_chk+0x64/0x68 [88x2bu]
[ 2352.436262] Modules linked in: 88x2bu(O) rfcomm cmac bnep hci_uart btbcm serdev bluetooth ecdh_generic 8021q garp stp llc evdev joydev brcmfmac brcmutil raspberrypi_hwmon hwmon cfg80211 rfkill bcm2835_codec(C) bcm2835_v4l2(C) snd_bcm2835(C) v4l2_mem2mem bcm2835_mmal_vchiq(C) snd_pcm videobuf2_dma_contig v4l2_common videobuf2_vmalloc snd_timer videobuf2_memops videobuf2_v4l2 snd videobuf2_common videodev media vc_sm_cma(C) rpi_ft5406 uio_pdrv_genirq uio rpi_backlight fixed ip_tables x_tables ipv6
[ 2352.436407] CPU: 0 PID: 911 Comm: RTW_CMD_THREAD Tainted: G         C O      4.19.118-v7+ #1311
[ 2352.436412] Hardware name: BCM2835
[ 2352.436444] [<801120c8>] (unwind_backtrace) from [<8010d5fc>] (show_stack+0x20/0x24)
[ 2352.436461] [<8010d5fc>] (show_stack) from [<80856da8>] (dump_stack+0xe0/0x124)
[ 2352.436479] [<80856da8>] (dump_stack) from [<80120c8c>] (__warn+0x104/0x11c)
[ 2352.436495] [<80120c8c>] (__warn) from [<80120ddc>] (warn_slowpath_null+0x50/0x58)
[ 2352.437043] [<80120ddc>] (warn_slowpath_null) from [<7f884938>] (rtw_lps_state_chk+0x64/0x68 [88x2bu])
[ 2352.438079] [<7f884938>] (rtw_lps_state_chk [88x2bu]) from [<7f8883ec>] (SetHwReg+0x7b4/0x7dc [88x2bu])
[ 2352.439086] [<7f8883ec>] (SetHwReg [88x2bu]) from [<7f8abce4>] (rtl8822b_sethwreg+0xd54/0xda0 [88x2bu])
[ 2352.440096] [<7f8abce4>] (rtl8822b_sethwreg [88x2bu]) from [<7f8af1c0>] (sethwreg+0x1bc/0x1c4 [88x2bu])
[ 2352.441100] [<7f8af1c0>] (sethwreg [88x2bu]) from [<7f87f850>] (rtw_hal_set_hwreg+0x20/0x24 [88x2bu])
[ 2352.442081] [<7f87f850>] (rtw_hal_set_hwreg [88x2bu]) from [<7f838468>] (rtw_set_ps_mode+0xe8/0x228 [88x2bu])
[ 2352.443041] [<7f838468>] (rtw_set_ps_mode [88x2bu]) from [<7f8387c8>] (LPS_Leave+0xd8/0xe0 [88x2bu])
[ 2352.444026] [<7f8387c8>] (LPS_Leave [88x2bu]) from [<7f8a7920>] (rtl8822b_phy_haldm_watchdog+0x1cc/0x1ec [88x2bu])
[ 2352.445032] [<7f8a7920>] (rtl8822b_phy_haldm_watchdog [88x2bu]) from [<7f87feec>] (rtw_hal_dm_watchdog+0x2c/0x30 [88x2bu])
[ 2352.445990] [<7f87feec>] (rtw_hal_dm_watchdog [88x2bu]) from [<7f8030b0>] (rtw_dynamic_chk_wk_hdl+0x40/0x5c [88x2bu])
[ 2352.446910] [<7f8030b0>] (rtw_dynamic_chk_wk_hdl [88x2bu]) from [<7f805174>] (rtw_drvextra_cmd_hdl+0x108/0x3ec [88x2bu])
[ 2352.447826] [<7f805174>] (rtw_drvextra_cmd_hdl [88x2bu]) from [<7f800eb8>] (rtw_cmd_thread+0x188/0x47c [88x2bu])
[ 2352.448293] [<7f800eb8>] (rtw_cmd_thread [88x2bu]) from [<80142b10>] (kthread+0x138/0x168)
[ 2352.448310] [<80142b10>] (kthread) from [<801010ac>] (ret_from_fork+0x14/0x28)
[ 2352.448317] Exception stack(0xa8691fb0 to 0xa8691ff8)
[ 2352.448327] 1fa0:                                     00000000 00000000 00000000 00000000
[ 2352.448339] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2352.448349] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 2352.448436] ---[ end trace 6096a97eec3e1c62 ]---

I cloned the repo (branch 5.6.1_30362.20181109_COEX20180928-6a6a, ) today and cross-compiled the kernel module on a Debian stretch machine (SMP Debian 4.9.210-1+deb9u1 (2020-06-07) x86_64 GNU/Linux). If you need more information please let me know.

# git show
commit 64aa087c5ead11960425125c955dcfe98233202e
Merge: 0f159d7 3a921c3
Author: Randy C. Will <[email protected]>
Date:   Fri Jun 5 06:58:53 2020 -0700

    Merge pull request #51 from ZDima3000/patch-1
    
    fix typo

I'm still configuring the machine to become a WiFi client and cannot tell at the moment if it works at all.