- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi
I´m using a custom board with WIFI module 1MW. While connecting with Network switch I get sometimes random errors. I´m still able to communicate and transfer data but I´m pretty sure the messages should no occur. I´m using kernel 5.4.24 (NXP rel_imx_5.4.24_2.1.0 / Yocto-zeus 3.0). Any idea why these messages occur?
root@test:~# iw dev wlan0 link
Connected to FF:FF:FF:FF:FF:FF (on wlan0)
SSID: TP-Link_0655
freq: 2462
RX: 13192 bytes (54 packets)
TX: 4029 bytes (23 packets)
signal: -45 dBm
rx bitrate: 150.0 MBit/s
tx bitrate: 11.0 MBit/s
bss flags: short-slot-time
dtim period: 1
beacon int: 100
root@test:~# udhcpc -i wlan0
udhcpc: started, v1.31.0
udhcpc: sending discover
udhcpc: sending select for 192.168.2.153
udhcpc: lease of 192.168.2.153 obtained, lease time 86400
/etc/udhcpc.d/50default: Adding DNS 192.168.2.1
root@test:~# brcmfmac: brcmf_sdio_isr: failed backplane access
brcmfmac: brcmf_sdio_isr: failed backplane access
brcmfmac: brcmf_sdio_isr: failed backplane access
brcmfmac: brcmf_sdio_isr: failed backplane access
brcmfmac: brcmf_sdio_isr: failed backplane access
root@test:~#
regards
Solved! Go to Solution.
- Labels:
-
Wireless
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello:
I have a check about the brcmf_sdio_isr, I can see even the log printed we don't return the function directly , So I assume this is not a fatal print. Actually , I can see a lot of sdio interface error with this print, but they are continuous which is different with yours, and the final results are crash with a continuous error printing, So your board may encounter an ISR timing or status check issue .
I recommend you to do a long-run test to confirm the robust of the interface.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello:
just confirm again , even the failed log was printed , the chip was still running well .
and would you please capture more logs with timestamp ? I want to check if the err is a continuous list , or just once a time.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello:
I have a check about the brcmf_sdio_isr, I can see even the log printed we don't return the function directly , So I assume this is not a fatal print. Actually , I can see a lot of sdio interface error with this print, but they are continuous which is different with yours, and the final results are crash with a continuous error printing, So your board may encounter an ISR timing or status check issue .
I recommend you to do a long-run test to confirm the robust of the interface.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello:
I will do a long-run test to verify the robustness of the interface.