From owner-freebsd-arm@freebsd.org Mon Mar 21 15:16:29 2016 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A6113AD89B6 for ; Mon, 21 Mar 2016 15:16:29 +0000 (UTC) (envelope-from jau789@gmail.com) Received: from mail-lf0-x22c.google.com (mail-lf0-x22c.google.com [IPv6:2a00:1450:4010:c07::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2E83A7D9 for ; Mon, 21 Mar 2016 15:16:29 +0000 (UTC) (envelope-from jau789@gmail.com) Received: by mail-lf0-x22c.google.com with SMTP id e196so34578861lfg.1 for ; Mon, 21 Mar 2016 08:16:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=to:from:subject:message-id:date:user-agent:mime-version :content-transfer-encoding; bh=5PVAoR3KIxhcB0WUfd71ebkYzQJUMR4lCyzuoJcgcHc=; b=mIspvM3Y9ckGBgbbQAsBea1qHCRLhknvBIhieWKKIoTXLlKik0h5OnhAb4vqij5tBY /Gmf5nCWvS9GTc0ADyzFU969GLCDm2sIBBQxT3x8lyC8Jgk/x4kcKktwe2mIenEZPVwB RUTtmjuuVghT0CGy49Heba3ufwbS9HdzbC2Aah5Jk6iXnLju4XwxhSKNXdxhQ5obfhs1 eE3Ad3N5fgjIp+JuecfBrlmhIo9pIDZTVoXQ4UOmoIHPE9+SkSKK/VKYDhfKgRL/5ge3 ZtJoAxkI0mQPKlChe4DDW1EKIM/zzG0j0532DGoID8c86VxTk4sL1LkH091eAdPg+OYG sWQA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-transfer-encoding; bh=5PVAoR3KIxhcB0WUfd71ebkYzQJUMR4lCyzuoJcgcHc=; b=ddfsojPRRRy/R/0TQ9OI64HL7nefF6xxi5TUkyYc5ZUv02Aetk3rgAAOssZyZlZ8sK ZJcR/RgcT9HiNX7PeWsOC0beG/U5/w3IJ5EdSEmqIhzyqZZg4Kmu0lB3QJiWZbSf6C6w AchfQXZTQRMrd29cbbRcdECbfjS6Lc4JVATK37mu3UqlfUKW22dY1WC6Ngmz8CBnJNz/ 337vWTLtoR+I25RmKrP5IE85iXkOii+LYsCdJ4vrLLNqXAKUQ1dcsJ7mqzYVl9ZpWsyP ayEuF53vDBfVL5V7+1PvdIoCOt0CseduNjNgf9VKKCUBQATIE7YNxxMf/K+qjSxdJ+KL T52A== X-Gm-Message-State: AD7BkJLJzhTKUsorUkJfXvWNE3BWgNxdm5wM3ejmg/ZO15iWTf1YKFnn+pLLvCJdhAeuaA== X-Received: by 10.25.18.98 with SMTP id h95mr119359lfi.113.1458573387154; Mon, 21 Mar 2016 08:16:27 -0700 (PDT) Received: from [192.168.1.131] (xdsl-205-1.nblnetworks.fi. [83.145.205.1]) by smtp.googlemail.com with ESMTPSA id c126sm4677730lfb.2.2016.03.21.08.16.26 for (version=TLSv1/SSLv3 cipher=OTHER); Mon, 21 Mar 2016 08:16:26 -0700 (PDT) To: freebsd-arm From: "Jukka A. Ukkonen" Subject: RPI2 panics while trying sleepq_add Message-ID: <56F01049.4020108@gmail.com> Date: Mon, 21 Mar 2016 17:16:25 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Mar 2016 15:16:29 -0000 Hello, Has anyone else seen symptoms similar to those described below? The RPI2 experiences odd panics displaying complaints like... <----------> panic: sleepq_add: td 0xc3a5e370 to sleep on wchan 0xc3afd000 with sleeping prohinited cpuid = 0 KBD: enter: panic [ thread pid 11 tid 100008 ] Stopped at $d.10: lrdb r15, [r15, r15, ror r15]! db> <-----------> It does not seem to matter anything whether the system is busy or relatively idle. What seems to be common to these panics is that in most cases when they happen the keyboard hasn't been touched for a while. This is just a wild guess, but maybe the kernel tries to put something in some low energy mode and fails. If I leave the thing doing something on its own for a while, when I get backsome 5 to 15 minutes later the poor RPI2 has fallen on its face showing the panic message similar to the one shown above. Have you seen this happening? Any ideas what might be going on? --jau