On 6/12/2022 5:49 PM, Hranislav Milenkovic wrote:
Hi Arend,I fouded your e-mail here https://wireless.wiki.kernel.org/en/users/drivers/brcm80211 <https://wireless.wiki.kernel.org/en/users/drivers/brcm80211> I have netgear R8000 with brcm 43602 wifi chip. I am using ddwrt with experimental build. There are 2 versions of build, normal with dhd and experimental with brvmfmac driver https://dd-wrt.com/support/other-downloads/?path=betas%2F2022%2F06-10-2022-r49139%2Fnetgear-r8000%2F <https://dd-wrt.com/support/other-downloads/?path=betas%2F2022%2F06-10-2022-r49139%2Fnetgear-r8000%2F> Router crashes sometimes and I emailed ddwrt devs with crashlog... but they told me"there is nothing to fix. its a firmware error. broadcom does not provide support for these firmwares . I cannot fix the firmware error for that chipset. its a binary. we can only seek for a newer firmware binary somewhere in the wild..."
Looked at the log and ddwrt devs are mistaken. In the log it shows: Jun 12 13:26:00 109.198.5.214 logger : calling done start_checkhostapdJun 12 13:26:07 109.198.5.214 kernel [ 4743.815344] ieee80211 phy2: brcmf_fil_cmd_data: Firmware error: (-23) cmd 262 Jun 12 13:27:04 109.198.5.214 kernel [ 4800.660849] Unable to handle kernel NULL pointer dereference at virtual address 00000058
So there is a command failing in firmware with error -23, but this is harmless. The NULL pointer dereference is a driver crash. Can you build the kernel with CONFIG_DEBUG_INFO and provide me with the brcmfmac kernel module, ie. brcmfmac.ko?
Regards, Arend
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