From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85730C07E99 for ; Fri, 9 Jul 2021 15:48:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C7D26100B for ; Fri, 9 Jul 2021 15:48:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232363AbhGIPvY convert rfc822-to-8bit (ORCPT ); Fri, 9 Jul 2021 11:51:24 -0400 Received: from smtp.aic.fr ([195.13.32.122]:43980 "EHLO smtp-out02.aic.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232248AbhGIPvY (ORCPT ); Fri, 9 Jul 2021 11:51:24 -0400 Received: from webmail.cube-technologies.net (unknown [93.191.42.150]) by smtp-out02.aic.fr (Postfix) with ESMTP id 52F8D52A for ; Fri, 9 Jul 2021 17:48:37 +0200 (CEST) Received: from Cube-mail.cube.local (192.168.3.242) by Cube-mail.cube.local (192.168.3.242) with Microsoft SMTP Server (TLS) id 15.0.847.32; Fri, 9 Jul 2021 17:48:21 +0200 Received: from Cube-mail.cube.local ([::1]) by Cube-mail.cube.local ([::1]) with mapi id 15.00.0847.040; Fri, 9 Jul 2021 17:48:21 +0200 From: Vincent RUBY To: "linux-wireless@vger.kernel.org" Subject: Kernel crash when scanning for APs in huge WiFi environment - Ath10K - ARMV7 - Linux 4.14.73 Thread-Topic: Kernel crash when scanning for APs in huge WiFi environment - Ath10K - ARMV7 - Linux 4.14.73 Thread-Index: Add00g30B+V1wjYvQ12HCt8vs0rm9wAB60sA Date: Fri, 9 Jul 2021 15:48:21 +0000 Message-ID: References: <1cef8054e4e447f2ba02d1de1e6afdf8@Cube-mail.cube.local> In-Reply-To: <1cef8054e4e447f2ba02d1de1e6afdf8@Cube-mail.cube.local> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.3.53] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hi, I apologize in advance if I am writing at the wrong place. We have developed a custom embedded board based on ARMV7. On the board there is a Telit WE866C3-P Wifi module (based on ath10k). Linux : 4.14.73 (YOCTO/poky) Microcontroller : SAMA5D27 The board is working perfectly in a normal Wifi environment (e.g., at office). But when the board is put in a huge Wifi environment (e.g., 350 APs with 2 antennas each with more than 600 visible BSSIDS) the Linux kernel crashes when attempting to connect to a Wifi network using wpa_supplicant. When the Wifi antenna is attenuated with some electromagnetic obstacle (e.g., hand or metallic shield), the board connects without any problem. The problem is the same when running a scan from wpa_cli . Do you have any idea where I can find some clue to resolve this issue? Many thanks in advance ! VinceCube