From owner-freebsd-current@FreeBSD.ORG Tue Sep 21 17:11:09 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2AEB816A4CE; Tue, 21 Sep 2004 17:11:09 +0000 (GMT) Received: from ylpvm43.prodigy.net (ylpvm43-ext.prodigy.net [207.115.57.74]) by mx1.FreeBSD.org (Postfix) with ESMTP id C7C2B43D1D; Tue, 21 Sep 2004 17:11:08 +0000 (GMT) (envelope-from nate@root.org) Received: from [10.0.0.34] (adsl-67-127-84-57.dsl.snfc21.pacbell.net [67.127.84.57])i8LHArCE005846; Tue, 21 Sep 2004 13:10:53 -0400 Message-ID: <4150607D.3020900@root.org> Date: Tue, 21 Sep 2004 10:10:21 -0700 From: Nate Lawson User-Agent: Mozilla Thunderbird 0.7.3 (X11/20040901) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Roman Kurakin References: <41421D6A.8070805@cronyx.ru> <414E7581.2070505@root.org> <414F256B.1030304@cronyx.ru> <200409201652.24457.jhb@FreeBSD.org> <41505663.40407@cronyx.ru> In-Reply-To: <41505663.40407@cronyx.ru> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: FreeBSD Current cc: Ian Freislich cc: John Baldwin Subject: Re: mp_machdep.c (was Re: [Fwd: Re: Bug reports requested - acpi]) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Sep 2004 17:11:09 -0000 Roman Kurakin wrote: > My solution works for current so I am going to commit it and MFC after > a while. To be sure that I am not on the wrong way I need some > reviewed/approved signs ;-) I also hope to get one (or more) tested signs. > > Patch I plan to commit following patch: > > Index: mp_machdep.c > =================================================================== > RCS file: /home/ncvs/src/sys/i386/i386/mp_machdep.c,v > retrieving revision 1.238 > diff -u -r1.238 mp_machdep.c > --- mp_machdep.c 1 Sep 2004 06:42:01 -0000 1.238 > +++ mp_machdep.c 21 Sep 2004 15:54:41 -0000 > @@ -743,10 +743,11 @@ > u_int8_t *dst8; > u_int16_t *dst16; > u_int32_t *dst32; > + vm_offset_t va = (vm_offset_t) dst; > > POSTCODE(INSTALL_AP_TRAMP_POST); > > - pmap_kenter(boot_address + KERNBASE, boot_address); > + pmap_map(&va, boot_address, boot_address + size, 0); > for (x = 0; x < size; ++x) > *dst++ = *src++; > > Any signs for(or against)? > > Thanks! A quick "no" vote from me until this is really understood. I think the real problem is an interference between the pmap for the AP trampoline and the acpi wake code (sys/i386/acpica/acpi_wakeup.c). The address you gave (0x9f000) is right before the base address we use for the wakeup code (0xa0000). As I woke up this morning, I was wondering if this could be the issue. An easy way to test is to disable the call to acpi_install_wakeup_handler() in sys/i386/acpica/acpi_machdep.c and see if this alone fixes the problem. If I'm wrong, feel free to commit your patch. P.S. Spaces instead of tabs in your diff. -Nate