Re: [I] [HELP] Please explain the esp32 wlan driver working which cause the following issue on cpu0 [nuttx]</span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=commits@nuttx.apache.org&q=from:%22via+GitHub%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">via GitHub</span></span></a></span> <span class="date"><a href="/search?l=commits@nuttx.apache.org&q=date:20250506" rel="nofollow">Tue, 06 May 2025 22:05:17 -0700</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre> abisop commented on issue #16269: URL: <a rel="nofollow" href="https://github.com/apache/nuttx/issues/16269#issuecomment-2857060982">https://github.com/apache/nuttx/issues/16269#issuecomment-2857060982</a></pre><pre> > Honestly I can't replicate without the proper board, and unfortunately I don't have the XIAO one. As long I am working on something internal like wifi and its esp32 s3. I think variations are there only in memory size (Flash and PSRAM). So people who wrote common part of esp32s3 wrote linker in such a way so that it can be changed according to config > Note : passive scan works fine , scan_results works fine , active scan (cause problem) but works sometimes So I invested time and found this problem.... > ... > Please see this - <a rel="nofollow" href="https://github.com/user-attachments/assets/e3d60979-1a9b-4abd-be22-3d8c9a9dcf9c">https://github.com/user-attachments/assets/e3d60979-1a9b-4abd-be22-3d8c9a9dcf9c</a> > > let me explain : For lets say we execute Active scan : > > 1 ) WAPI send command to low level driver for scan, connect, etc. 2) It checks if the scan(or any other request) is complete ![Image](<a rel="nofollow" href="https://github.com/user-attachments/assets/4e6f92db-f071-4482-8c70-5aed6ea41093">https://github.com/user-attachments/assets/4e6f92db-f071-4482-8c70-5aed6ea41093</a>) > > 3. The previous step is necessary to get the data from lower driver > > > So if we ask him for data before it (lower driver) finishes. ---> (REBOOT/CRASH) > > Also : > > > If test with esp32s3-devkit:wifi config no issue will be there but if we add some more features such as ROMFS, Telnettd, etc > > This happens > > Till now I am able to fix the issue by hardcoding a delay: To be continued..... > -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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