From owner-freebsd-arm@freebsd.org Thu Sep 21 10:46:34 2017 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 6EECAE23C09 for ; Thu, 21 Sep 2017 10:46:34 +0000 (UTC) (envelope-from onwahe@gmail.com) Received: from mail-wr0-x230.google.com (mail-wr0-x230.google.com [IPv6:2a00:1450:400c:c0c::230]) (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 017BF73E6D for ; Thu, 21 Sep 2017 10:46:34 +0000 (UTC) (envelope-from onwahe@gmail.com) Received: by mail-wr0-x230.google.com with SMTP id z39so4220677wrb.8 for ; Thu, 21 Sep 2017 03:46:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=AEaE3PVEOR/7nTKq2bG52aNptoT3DYY3WI/aKhVyDtQ=; b=mUPSE/OCOzFaq74LGmaiAtiUzc+jSkP2YbS6PQ9ohGr/t1NTt7wXivuZtq5Un1b9A3 MFFSfrkAoG/nCD4FvWbJWHFwWdWyhigycVgE+9BZD9/2k770UpBd2xaEM5W7fT4jxCfB AQqqy1cwev15hh77xnsk5ltAeRKjbZtxUSp3D/wrwjpUxgakK6U0ON3DTopcheoEpGuH z5xNsaFcU4F6GQ1t2XydJqMsDXaj9sU0kkKClgX8QkMBz4CPSlMrQtKi/dGiTVfe4r15 DRMlTMep53RIB5zWAkNVGoH9mieZTMBdk4WlfwpNyfg5igAWjw2Iyt3d4v8etKj3v0Wh 89mg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=AEaE3PVEOR/7nTKq2bG52aNptoT3DYY3WI/aKhVyDtQ=; b=Ku3dGw7+UCPX+YxXYAKVdyO0b7OMX0aa7IyfzJ66aWz0lYnAE1fODMT1P/IL/6RRtP c/kv3LDH1mhGAXecrJKPYFVESBg6r9ggyHMmi17Pvq2TASpsuhma7gyoHEm7yw/qhsaM 6AkqFK4YswMUdScGxPCxNfH3UD9xCfYyEH1hMBxqyZbkt6IEQ7T2NrgiGH2TaGPCFvEX jBQlFDqNMHRL5gAXyjNlZrHx/vnCUFix4ZUzHm2csEFy0msaaOkClIgf8YJ6KvTCBQML NfORBRkbIMMO6J9n9VSRNAZLx69Ld77Hf0yGurgVpcrH26yohufrWb/h+ywo/etOVale RkIQ== X-Gm-Message-State: AHPjjUiCZNha7rLybixkbbvErgRsrCgM7eoazs72VmjCUrHv4ich/uP+ qzFpAqz5UuYiwbirWkKT28ThOWujkqshhmunuDusqg== X-Google-Smtp-Source: AOwi7QDJ2uZ0D87nvBi7pwDGwolZ9Mcfo88WL6ywLzqkwUsTg59BUpyG917lSdyvXkoktGB4v2qVGIvFZIupgyot3qg= X-Received: by 10.223.152.117 with SMTP id v108mr1597244wrb.76.1505990792105; Thu, 21 Sep 2017 03:46:32 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.195.3 with HTTP; Thu, 21 Sep 2017 03:46:31 -0700 (PDT) In-Reply-To: <20170921015621.GA55155@www.zefox.net> References: <20170921015621.GA55155@www.zefox.net> From: Svatopluk Kraus Date: Thu, 21 Sep 2017 12:46:31 +0200 Message-ID: Subject: Re: pmap_fault: PT2MAP abort on rpi2 while building world To: bob prohaska Cc: "freebsd-arm@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Sep 2017 10:46:34 -0000 (1) Well, for beginning, you could add more info to panic message. This pmap_fault() is in pmap-v6.c file. The line before that panic is the following: 6371 CTR4(KTR_PMAP, "%s: pmap %#x PT2MAP %#x far %#x", 6372 __func__, pmap, PT2MAP, far); 6373 panic("%s: PT2MAP abort", __func__); The easiest way is to add the same things like in CTR4. (2) According to console dump, there is an exception from userland which leads to second exception in pmap_fault(). It would be interesting to know at what place it generates the second exception, which IMO should never happen in pmap_fault(). Svata On Thu, Sep 21, 2017 at 3:56 AM, bob prohaska wrote: > Several times now buildworld attempts have crashed with > pmap_fault: PT2MAP abort. > > It started several weeks ago and has been happening intermittently > ever since. So far it's only occurred during buildworld, not other > compilations such as firefox (which still fails from porting issues). > > I couldn't find any recent posts on this error, is it worth a bug > report? > > The information I could gather from the latest crash is at > http://www.zefox.net/~fbsd/rpi2/crashes/crash_9_20_17/ > > Thanks for reading, and any guidance! > > bob prohaska > > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"