From owner-freebsd-xen@freebsd.org Wed May 23 14:58:11 2018 Return-Path: Delivered-To: freebsd-xen@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 32D5FEFFABB for ; Wed, 23 May 2018 14:58:11 +0000 (UTC) (envelope-from pratiy0100@gmail.com) Received: from mail-wm0-x242.google.com (mail-wm0-x242.google.com [IPv6:2a00:1450:400c:c09::242]) (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 9CAAA6EC94 for ; Wed, 23 May 2018 14:58:10 +0000 (UTC) (envelope-from pratiy0100@gmail.com) Received: by mail-wm0-x242.google.com with SMTP id w194-v6so9825172wmf.2 for ; Wed, 23 May 2018 07:58:10 -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:content-transfer-encoding; bh=pcNDOZHOQiukK+v0/ndo/BNaUQo/hR0XcKbENse1pwM=; b=SJWdj02u10kUwqBUALJTfc/APpmnRYNOVxUdRRj3CG5Dvy82fDd/mlR4O6kMeLnEji A4eYqyIgSGhwWF7qt01RkJmFFBdvCmUn4Bl7gWtGJuOXrgxWzLtNjxKvAULMZPwTHNy+ v1zqq4aahCGqG1OPDo1FAkNSdgHfRyoXnR6btl+HikX0MMhJBg+nBQIU9S4izMpVUBOb 8nx+7/DR+Z5Ry5yjZLCw2XeZ3cuBefYBBEazdmnFvuU+BWYLJYgABFtXbaNyx0NXvdRx ZDYS3vbqUVCRzb94GGkv/V2jbP3tOAxj7E6c6/k3y8hpqnPmXUzePm2aQK4gIaTIAV/T lubg== 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:content-transfer-encoding; bh=pcNDOZHOQiukK+v0/ndo/BNaUQo/hR0XcKbENse1pwM=; b=Al+rrqDf3ODnkvfpPWpQfAuTzP1WpN+s1qWIiN7hz99gYgkq3gHSV3lr0ePEeR6cz3 +qdbliFoC+iFZuhGMUI23zULblQTfL1oL6pr71/Sn3m7GtpNDe/ig+roFQ9a+3JR8Lj7 OMo93rHwfebNJ3bu0S7PwU1ED0EnetWSuh4HL6wWh3VBjk/3O/w/GmPNVjKGuTX29DI2 fpy+yyXMgquhUv77BiKLcOywW/jvmlljvtnyt3UqKLbcXHux9dbfkbZYMpZLnfg9LUKZ SMUqe6YhdIOueJDxzELt00vNa2B0Tn9MGZxBBRgvBUGJXndlvawqryGDQBn4tKHDDQ73 MGZA== X-Gm-Message-State: ALKqPwdA3J3jdwrVZlHsVERoPL4viRbge1hywVL5GPxBScZp/xHt4rE9 J3lYveKwXUoxAmoW+g25e3EoZMJ0fhWZnN+itcO66HCF X-Google-Smtp-Source: AB8JxZqZn7vcbL7cT1a9YDelUki2gfnPCl53jk0nMLiwB6may/39zffbpGrqIhV7YA4/F4xE8kWo7vV4LHThj+Im7xU= X-Received: by 2002:aa7:c0c9:: with SMTP id j9-v6mr7594299edp.136.1527087489636; Wed, 23 May 2018 07:58:09 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a50:aa21:0:0:0:0:0 with HTTP; Wed, 23 May 2018 07:57:29 -0700 (PDT) In-Reply-To: <20180523081547.2vvthg42vmphvbex@MacBook-Pro-de-Roger.local> References: <20180519081030.qhzyjdrpwcekmcac@MacBook-Pro-de-Roger.local> <20180521090310.c46eexnwe4c7w62x@MacBook-Pro-de-Roger.local> <20180523081547.2vvthg42vmphvbex@MacBook-Pro-de-Roger.local> From: Pratyush Yadav Date: Wed, 23 May 2018 20:27:29 +0530 Message-ID: Subject: Re: Xen kernel fails to boot, d0v1 triple fault looks like the cuplrit To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= Cc: FreeBSD-Xen Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 May 2018 14:58:11 -0000 Hi, On Wed, May 23, 2018 at 1:45 PM, Roger Pau Monn=C3=A9 wrote: > It's too early for the logs to be stored anywhere. The point where you > get the crash is when the APs are started, which is way before FreeBSD > starts proving for disk devices. > > Can you please try the patch below? > > Thanks, Roger. > ---8<--- > diff --git a/sys/x86/xen/pv.c b/sys/x86/xen/pv.c > index 54184898e9bf..52391e2e7c08 100644 > --- a/sys/x86/xen/pv.c > +++ b/sys/x86/xen/pv.c > @@ -113,6 +113,7 @@ static int xen_pv_start_all_aps(void); > extern char *doublefault_stack; > extern char *mce_stack; > extern char *nmi_stack; > +extern char *dbg_stack; > #endif > > /* > @@ -329,6 +330,8 @@ start_xen_ap(int cpu) > (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZER= O); > nmi_stack =3D > (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZER= O); > + dbg_stack =3D > + (void *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZER= O); > dpcpu =3D > (void *)kmem_malloc(kernel_arena, DPCPU_SIZE, M_WAITOK | M_ZE= RO); > I think we have different pv.c files. For me, line 113 is: /* Xen init_ops implementation. */ The declarations of doublefault_stach, mce_stack, etc are in line 101. Similarly, line 329 for me is: { in function xen_pv_parse_symtab(void). The declarations your diff mentions in line 329 are in line 224. This is in sync with the official repository [0]. Maybe you have modifications that are not yet upstream? Anyway, I manually made the changes. It still does not boot (I used make kernel -DKERNFAST, but I don't think that should make a difference). Regards, Pratyush Yadav [0] https://github.com/freebsd/freebsd/blob/master/sys/x86/xen/pv.c