From owner-freebsd-stable@freebsd.org Mon Nov 26 18:31:54 2018 Return-Path: Delivered-To: freebsd-stable@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 43224113FB68 for ; Mon, 26 Nov 2018 18:31:54 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id CC77781708 for ; Mon, 26 Nov 2018 18:31:53 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: by mailman.ysv.freebsd.org (Postfix) id 8F4C3113FB67; Mon, 26 Nov 2018 18:31:53 +0000 (UTC) Delivered-To: stable@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 53AA1113FB66 for ; Mon, 26 Nov 2018 18:31:53 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from mail.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id D190E816FC; Mon, 26 Nov 2018 18:31:52 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from John-Baldwins-MacBook-Pro-2.local (ralph.baldwin.cx [66.234.199.215]) by mail.baldwin.cx (Postfix) with ESMTPSA id 979C610B476; Mon, 26 Nov 2018 13:31:45 -0500 (EST) Subject: Re: Panic on 11-STABLE with Xen guest To: Joe Clarke , stable@freebsd.org References: <00d6d9ae-d5d8-ed88-34ee-2e67c0ca8904@marcuscom.com> Cc: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= From: John Baldwin Openpgp: preference=signencrypt Autocrypt: addr=jhb@FreeBSD.org; keydata= xsDiBETQ+XcRBADMFybiq69u+fJRy/0wzqTNS8jFfWaBTs5/OfcV7wWezVmf9sgwn8TW0Dk0 c9MBl0pz+H01dA2ZSGZ5fXlmFIsee1WEzqeJzpiwd/pejPgSzXB9ijbLHZ2/E0jhGBcVy5Yo /Tw5+U/+laeYKu2xb0XPvM0zMNls1ah5OnP9a6Ql6wCgupaoMySb7DXm2LHD1Z9jTsHcAQMD /1jzh2BoHriy/Q2s4KzzjVp/mQO5DSm2z14BvbQRcXU48oAosHA1u3Wrov6LfPY+0U1tG47X 1BGfnQH+rNAaH0livoSBQ0IPI/8WfIW7ub4qV6HYwWKVqkDkqwcpmGNDbz3gfaDht6nsie5Z pcuCcul4M9CW7Md6zzyvktjnbz61BADGDCopfZC4of0Z3Ka0u8Wik6UJOuqShBt1WcFS8ya1 oB4rc4tXfSHyMF63aPUBMxHR5DXeH+EO2edoSwViDMqWk1jTnYza51rbGY+pebLQOVOxAY7k do5Ordl3wklBPMVEPWoZ61SdbcjhHVwaC5zfiskcxj5wwXd2E9qYlBqRg80eSm9obiBCYWxk d2luIDxqb2huQGJhbGR3aW4uY3g+wmMEExECACMCGwMGCwkIBwMCBBUCCAMEFgIDAQIeAQIX gAUCRND5wwIZAQAKCRBy3lIGd+N/BNLXAJ9KIb6teuDL1W+FkCgvv+y8PxKTkACeIUfbn3sl cueBzqTcf09idwa8YTbOwU0ERND5ghAIAPwsO0B7BL+bz8sLlLoQktGxXwXQfS5cInvL17Ds gnr31AKa94j9EnXQyPEj7u0d+LmEe6CGEGDh1OcGFTMVrof2ZzkSy4+FkZwMKJpTiqeaShMh +GojXlwIMDxyADYvBIg3eN5YdFKaPQpfgSqhT+7El7w+wSZZD8pPQuLAnie5iz9C8iKy4/cM SOrHYUK/tO+Nhw8Jjlw94Ik0T80iEhI2t+XBVjwdfjbq3HrJ0ehqdBwukyeJRYKmbn298KOF QVHOEVbHA4rF/37jzaMadK43FgJ0SAhPPF5l4l89z5oPu0b/+5e2inA3b8J3iGZxywjM+Csq 1tqzhltEc7Q+E08AAwUIAL+15XH8bPbjNJdVyg2CMl10JNW2wWg2Q6qdljeaRqeR6zFus7EZ TwtXsNzs5bP8y51PSUDJbeiy2RNCNKWFMndM22TZnk3GNG45nQd4OwYK0RZVrikalmJY5Q6m 7Z164yrZgIXFdKj2t8F+x613/SJW1lIr9/bDp4U9tw0V1g3l2dFtD3p3ZrQ3hpoDtoK70ioI AjjHaIXIAcm3FGZFXy503DOA0KaTWwvOVdYCFLm3zWuSOmrX/GsEc7ovasOWwjPn878qVjbU KWwxQ4QkF4OhUV9zPtf9tDSAZ3x7QSwoKbCoRCZ/xbyTUPyQ1VvNy/mYrBcYlzHodsaqUDjH uW/CSQQYEQIACQUCRND5ggIbDAAKCRBy3lIGd+N/BCO8AJ9j1dWVQWxw/YdTbEyrRKOY8YZN wwCfafMAg8QvmOWnHx3wl8WslCaXaE8= Message-ID: <87ec7a7b-f64e-21b7-ac2c-790e2ff70247@FreeBSD.org> Date: Mon, 26 Nov 2018 10:31:43 -0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <00d6d9ae-d5d8-ed88-34ee-2e67c0ca8904@marcuscom.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (mail.baldwin.cx); Mon, 26 Nov 2018 13:31:46 -0500 (EST) X-Virus-Scanned: clamav-milter 0.99.2 at mail.baldwin.cx X-Virus-Status: Clean X-Rspamd-Queue-Id: CC77781708 X-Spamd-Result: default: False [1.11 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_SPAM_LONG(0.43)[0.433,0]; NEURAL_SPAM_MEDIUM(0.23)[0.225,0]; ASN(0.00)[asn:10310, ipnet:2001:1900:2254::/48, country:US]; NEURAL_SPAM_SHORT(0.45)[0.450,0] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Nov 2018 18:31:54 -0000 On 11/22/18 12:39 PM, Joe Clarke wrote: > I believe after the commit 340016 for the dynamic IRQ layout, my Xen VM > started to panic. I just upgraded the kernel today and saw this: > > xen: unable to map IRQ#2 > panic: Unable to register interrupt override > cpuid = 0 > KDB: stack backtrace: > #0 0xffffffff8060a4e7 at kdb_backtrace+0x67 > #1 0xffffffff805c3787 at vpanic+0x177 > #2 0xffffffff805c3603 at panic+0x43 > #3 0xffffffff8093a766 at madt_parse_ints+0x96 > #4 0xffffffff803353f9 at acpi_walk_subtables+0x29 > #5 0xffffffff8093a5e6 at xenpv_register_pirqs+0x56 > #6 0xffffffff80928296 at intr_init_sources+0x116 > #7 0xffffffff8055eba8 at mi_startup+0x118 > #8 0xffffffff8029902c at btext+0x2c > > The following kernel works: > > @(#)FreeBSD 11.2-STABLE #4: Thu Nov 1 02:24:07 EDT 2018 > FreeBSD 11.2-STABLE #4: Thu Nov 1 02:24:07 EDT 2018 > root@creme-brulee:/usr/obj/usr/src/sys/CREME-BRULEE > > The following kernel produces the panic above immediately on boot: > > @(#)FreeBSD 11.2-STABLE #5: Wed Nov 21 11:08:38 EST 2018 > FreeBSD 11.2-STABLE #5: Wed Nov 21 11:08:38 EST 2018 > root@creme-brulee:/usr/obj/usr/src/sys/CREME-BRULEE > > Attached is a screen grab of the console of the panic. Hmm, I don't see any obvious candidates of Xen changes that weren't included in the MFC. I've added royger@ (who maintains Xen in FreeBSD) to the cc to see if he has an idea. Roger, the main changes that aren't MFC'd to 11 from 12/head seem to be some refcounting on event channels and PVHv2 vs PVHv1? -- John Baldwin