Score:0

Wifi disconnection issues for rtw_8822ce

bh flag

So I've been facing the below issues since a few months. They were never that bothersome, as they occurred once a few weeks. A simple restart would work then. Now however, they occur every few minutes, which has made the wifi on my device absolutely unusable. I couldn't find a fix to this by myself. Hence, could somebody pls help me out here haha

Background:

OS: Ubuntu 22.04.1 LTS x86_64
Host: ASUS TUF Gaming A17 FA706IH_
Kernel: 5.15.0-60-lowlatency

Problem:

Sometimes wifi disconnects suddenly. It also fails to detect any networks when opened from settings.
At other times, it does detect networks, but fails to connect to them.
At times it remains connected to networks without actually having any internet access.

On running dmesg, here is what I get:

================================================================================
[ 27.787744] UBSAN: array-index-out-of-bounds in /home/fenrir/rtw88/rtw8822c.c:4449:20
[ 27.787745] index 3 is out of range for type 'u8 [2][4]'
[ 27.787746] CPU: 6 PID: 276 Comm: kworker/u32:4 Tainted: P W OE 5.15.0-60-lowlatency #66-Ubuntu
[ 27.787747] Hardware name: ASUSTeK COMPUTER INC. ASUS TUF Gaming A17 FA706IH_FA706IH/FA706IH, BIOS FA706IH.316 03/12/2021
[ 27.787748] Workqueue: phy0 rtw_watch_dog_work [rtw_core]
[ 27.787753] Call Trace:
[ 27.787754]
[ 27.787754] show_stack+0x52/0x5c
[ 27.787755] dump_stack_lvl+0x4a/0x63
[ 27.787757] dump_stack+0x10/0x16
[ 27.787759] ubsan_epilogue+0x9/0x49
[ 27.787761] __ubsan_handle_out_of_bounds.cold+0x44/0x49
[ 27.787763] ? rtw8822c_phy_cck_pd_set+0x40c/0x820 [rtw_8822c]
[ 27.787765] rtw8822c_phy_cck_pd_set+0x5c6/0x820 [rtw_8822c]
[ 27.787767] ? rtw_write32_mask+0x6c/0xa0 [rtw_8822c]
[ 27.787771] rtw_phy_dynamic_mechanism+0x347/0x720 [rtw_core]
[ 27.787777] rtw_watch_dog_work+0x1dd/0x270 [rtw_core]
[ 27.787782] process_one_work+0x222/0x400
[ 27.787784] worker_thread+0x50/0x3f0
[ 27.787785] ? process_one_work+0x400/0x400
[ 27.787786] kthread+0x13b/0x160
[ 27.787788] ? set_kthread_struct+0x50/0x50
[ 27.787790] ret_from_fork+0x22/0x30
[ 27.787792]
[ 27.787793] ================================================================================
[ 27.790852] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 27.793920] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 27.797062] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 28.097975] rtw_8822ce 0000:03:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000c address=0xaef140b0 flags=0x0000]
[ 29.828972] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 29.832059] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 29.835154] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 29.838290] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 31.812918] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 31.816009] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 31.819164] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 33.796964] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 33.800052] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 33.903942] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 33.907009] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 35.844931] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 35.848009] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 35.851084] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 35.854209] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 37.828947] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 37.832046] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 37.835174] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 39.813929] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 39.817015] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 39.820153] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 41.796942] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 41.800045] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 41.903932] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 43.844919] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 43.848000] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 43.851059] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 43.854180] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 45.828967] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 45.832056] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 45.835201] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 47.812945] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 47.816020] rtw_8822ce 0000:03:00.0: failed to send h2c command
[ 47.819153] rtw_8822ce 0000:03:00.0: failed to send h2c command

In other times, I also get errors in the dmesg like: mac power on failed or failed to poll offset something something.

I also get this many times:

[ 756.074974] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.074979] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.074998] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075006] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075009] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075017] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075023] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075032] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075040] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075048] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075056] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075064] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075073] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075085] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075091] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075096] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075103] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075112] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075121] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075129] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075138] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status
[ 756.075213] rtw_8822ce 0000:03:00.0: pci bus timeout, check dma status```

Score:0
bh flag

So sorry for forgetting to provide an update. I did find a fix to this issue. I removed and reinserted the actual wifi card a few months ago. I haven't faced this issue again thankfully.

I sit in a Tesla and translated this thread with Ai:

mangohost

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