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Wed, 15 Jul 2020 20:50:14 +0000 Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 06FKo8kx002016; Wed, 15 Jul 2020 20:50:08 GMT Received: from [10.39.217.130] (/10.39.217.130) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 15 Jul 2020 13:50:08 -0700 Subject: Re: [PATCH v2 00/11] Fix PM hibernation in Xen guests To: Anchal Agarwal References: <324020A7-996F-4CF8-A2F4-46957CEA5F0C@amazon.com> <20200715194933.GA17938@dev-dsk-anchalag-2a-9c2d1d96.us-west-2.amazon.com> From: Boris Ostrovsky Autocrypt: addr=boris.ostrovsky@oracle.com; keydata= xsFNBFH8CgsBEAC0KiOi9siOvlXatK2xX99e/J3OvApoYWjieVQ9232Eb7GzCWrItCzP8FUV PQg8rMsSd0OzIvvjbEAvaWLlbs8wa3MtVLysHY/DfqRK9Zvr/RgrsYC6ukOB7igy2PGqZd+M MDnSmVzik0sPvB6xPV7QyFsykEgpnHbvdZAUy/vyys8xgT0PVYR5hyvhyf6VIfGuvqIsvJw5 C8+P71CHI+U/IhsKrLrsiYHpAhQkw+Zvyeml6XSi5w4LXDbF+3oholKYCkPwxmGdK8MUIdkM d7iYdKqiP4W6FKQou/lC3jvOceGupEoDV9botSWEIIlKdtm6C4GfL45RD8V4B9iy24JHPlom woVWc0xBZboQguhauQqrBFooHO3roEeM1pxXjLUbDtH4t3SAI3gt4dpSyT3EvzhyNQVVIxj2 FXnIChrYxR6S0ijSqUKO0cAduenhBrpYbz9qFcB/GyxD+ZWY7OgQKHUZMWapx5bHGQ8bUZz2 SfjZwK+GETGhfkvNMf6zXbZkDq4kKB/ywaKvVPodS1Poa44+B9sxbUp1jMfFtlOJ3AYB0WDS Op3d7F2ry20CIf1Ifh0nIxkQPkTX7aX5rI92oZeu5u038dHUu/dO2EcuCjl1eDMGm5PLHDSP 0QUw5xzk1Y8MG1JQ56PtqReO33inBXG63yTIikJmUXFTw6lLJwARAQABzTNCb3JpcyBPc3Ry b3Zza3kgKFdvcmspIDxib3Jpcy5vc3Ryb3Zza3lAb3JhY2xlLmNvbT7CwXgEEwECACIFAlH8 CgsCGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEIredpCGysGyasEP/j5xApopUf4g 9Fl3UxZuBx+oduuw3JHqgbGZ2siA3EA4bKwtKq8eT7ekpApn4c0HA8TWTDtgZtLSV5IdH+9z JimBDrhLkDI3Zsx2CafL4pMJvpUavhc5mEU8myp4dWCuIylHiWG65agvUeFZYK4P33fGqoaS VGx3tsQIAr7MsQxilMfRiTEoYH0WWthhE0YVQzV6kx4wj4yLGYPPBtFqnrapKKC8yFTpgjaK jImqWhU9CSUAXdNEs/oKVR1XlkDpMCFDl88vKAuJwugnixjbPFTVPyoC7+4Bm/FnL3iwlJVE qIGQRspt09r+datFzPqSbp5Fo/9m4JSvgtPp2X2+gIGgLPWp2ft1NXHHVWP19sPgEsEJXSr9 tskM8ScxEkqAUuDs6+x/ISX8wa5Pvmo65drN+JWA8EqKOHQG6LUsUdJolFM2i4Z0k40BnFU/ kjTARjrXW94LwokVy4x+ZYgImrnKWeKac6fMfMwH2aKpCQLlVxdO4qvJkv92SzZz4538az1T m+3ekJAimou89cXwXHCFb5WqJcyjDfdQF857vTn1z4qu7udYCuuV/4xDEhslUq1+GcNDjAhB nNYPzD+SvhWEsrjuXv+fDONdJtmLUpKs4Jtak3smGGhZsqpcNv8nQzUGDQZjuCSmDqW8vn2o hWwveNeRTkxh+2x1Qb3GT46uzsFNBFH8CgsBEADGC/yx5ctcLQlB9hbq7KNqCDyZNoYu1HAB Hal3MuxPfoGKObEktawQPQaSTB5vNlDxKihezLnlT/PKjcXC2R1OjSDinlu5XNGc6mnky03q yymUPyiMtWhBBftezTRxWRslPaFWlg/h/Y1iDuOcklhpr7K1h1jRPCrf1yIoxbIpDbffnuyz kuto4AahRvBU4Js4sU7f/btU+h+e0AcLVzIhTVPIz7PM+Gk2LNzZ3/on4dnEc/qd+ZZFlOQ4 KDN/hPqlwA/YJsKzAPX51L6Vv344pqTm6Z0f9M7YALB/11FO2nBB7zw7HAUYqJeHutCwxm7i BDNt0g9fhviNcJzagqJ1R7aPjtjBoYvKkbwNu5sWDpQ4idnsnck4YT6ctzN4I+6lfkU8zMzC gM2R4qqUXmxFIS4Bee+gnJi0Pc3KcBYBZsDK44FtM//5Cp9DrxRQOh19kNHBlxkmEb8kL/pw XIDcEq8MXzPBbxwHKJ3QRWRe5jPNpf8HCjnZz0XyJV0/4M1JvOua7IZftOttQ6KnM4m6WNIZ 2ydg7dBhDa6iv1oKdL7wdp/rCulVWn8R7+3cRK95SnWiJ0qKDlMbIN8oGMhHdin8cSRYdmHK kTnvSGJNlkis5a+048o0C6jI3LozQYD/W9wq7MvgChgVQw1iEOB4u/3FXDEGulRVko6xCBU4 SQARAQABwsFfBBgBAgAJBQJR/AoLAhsMAAoJEIredpCGysGyfvMQAIywR6jTqix6/fL0Ip8G jpt3uk//QNxGJE3ZkUNLX6N786vnEJvc1beCu6EwqD1ezG9fJKMl7F3SEgpYaiKEcHfoKGdh 30B3Hsq44vOoxR6zxw2B/giADjhmWTP5tWQ9548N4VhIZMYQMQCkdqaueSL+8asp8tBNP+TJ PAIIANYvJaD8xA7sYUXGTzOXDh2THWSvmEWWmzok8er/u6ZKdS1YmZkUy8cfzrll/9hiGCTj u3qcaOM6i/m4hqtvsI1cOORMVwjJF4+IkC5ZBoeRs/xW5zIBdSUoC8L+OCyj5JETWTt40+lu qoqAF/AEGsNZTrwHJYu9rbHH260C0KYCNqmxDdcROUqIzJdzDKOrDmebkEVnxVeLJBIhYZUd t3Iq9hdjpU50TA6sQ3mZxzBdfRgg+vaj2DsJqI5Xla9QGKD+xNT6v14cZuIMZzO7w0DoojM4 ByrabFsOQxGvE0w9Dch2BDSI2Xyk1zjPKxG1VNBQVx3flH37QDWpL2zlJikW29Ws86PHdthh Fm5PY8YtX576DchSP6qJC57/eAAe/9ztZdVAdesQwGb9hZHJc75B+VNm4xrh/PJO6c1THqdQ 19WVJ+7rDx3PhVncGlbAOiiiE3NOFPJ1OQYxPKtpBUukAlOTnkKE6QcA4zckFepUkfmBV1wM Jg6OxFYd01z+a+oL Message-ID: <6145a0d9-fd4e-a739-407e-97f7261eecd8@oracle.com> Date: Wed, 15 Jul 2020 16:49:57 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200715194933.GA17938@dev-dsk-anchalag-2a-9c2d1d96.us-west-2.amazon.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9683 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 bulkscore=0 adultscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007150158 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9683 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 phishscore=0 spamscore=0 mlxlogscore=999 malwarescore=0 mlxscore=0 priorityscore=1501 adultscore=0 bulkscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007150158 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "Valentin, Eduardo" , "len.brown@intel.com" , "peterz@infradead.org" , "benh@kernel.crashing.org" , "x86@kernel.org" , "linux-mm@kvack.org" , "pavel@ucw.cz" , "hpa@zytor.com" , "sstabellini@kernel.org" , "Kamata, Munehisa" , "mingo@redhat.com" , "xen-devel@lists.xenproject.org" , "Singh, Balbir" , "axboe@kernel.dk" , "konrad.wilk@oracle.com" , "bp@alien8.de" , "tglx@linutronix.de" , "jgross@suse.com" , "netdev@vger.kernel.org" , "linux-pm@vger.kernel.org" , "rjw@rjwysocki.net" , "linux-kernel@vger.kernel.org" , "vkuznets@redhat.com" , "davem@davemloft.net" , "Woodhouse, David" , "roger.pau@citrix.com" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On 7/15/20 3:49 PM, Anchal Agarwal wrote: > On Mon, Jul 13, 2020 at 03:43:33PM -0400, Boris Ostrovsky wrote: >> CAUTION: This email originated from outside of the organization. Do no= t click links or open attachments unless you can confirm the sender and k= now the content is safe. >> >> >> >> On 7/10/20 2:17 PM, Agarwal, Anchal wrote: >>> Gentle ping on this series. >> >> Have you tested save/restore? >> > No, not with the last few series. But a good point, I will test that an= d get > back to you. Do you see anything specific in the series that suggests o= therwise? root@ovs104> xl save pvh saved Saving to saved new xl format (info 0x3/0x0/1699) xc: info: Saving domain 3, type x86 HVM xc: Frames: 1044480/1044480=C2=A0 100% xc: End of stream: 0/0=C2=A0=C2=A0=C2=A0 0% root@ovs104> xl restore saved Loading new save file saved (new xl fmt info 0x3/0x0/1699) =C2=A0Savefile contains xl domain config in JSON format Parsing config from xc: info: Found x86 HVM domain from Xen 4.13 xc: info: Restoring domain xc: info: Restore successful xc: info: XenStore: mfn 0xfeffc, dom 0, evt 1 xc: info: Console: mfn 0xfefff, dom 0, evt 2 root@ovs104> xl console pvh [=C2=A0 139.943872] ------------[ cut here ]------------ [=C2=A0 139.943872] kernel BUG at arch/x86/xen/enlighten.c:205! [=C2=A0 139.943872] invalid opcode: 0000 [#1] SMP PTI [=C2=A0 139.943872] CPU: 0 PID: 11 Comm: migration/0 Not tainted 5.8.0-rc= 5 #26 [=C2=A0 139.943872] RIP: 0010:xen_vcpu_setup+0x16d/0x180 [=C2=A0 139.943872] Code: 4a 8b 14 f5 40 c9 1b 82 48 89 d8 48 89 2c 02 8b= 05 a4 d4 40 01 85 c0 0f 85 15 ff ff ff 4a 8b 04 f5 40 c9 1b 82 e9 f4 fe ff ff <0f> 0b b8 ed ff ff ff e9 14 ff ff ff e8 12 4f 86 00 66 90 66 66 66 [=C2=A0 139.943872] RSP: 0018:ffffc9000006bdb0 EFLAGS: 00010046 [=C2=A0 139.943872] RAX: 0000000000000000 RBX: ffffc9000014fe00 RCX: 0000000000000000 [=C2=A0 139.943872] RDX: ffff88803fc00000 RSI: 0000000000016128 RDI: 0000000000000000 [=C2=A0 139.943872] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [=C2=A0 139.943872] R10: ffffffff826174a0 R11: ffffc9000006bcb4 R12: 0000000000016120 [=C2=A0 139.943872] R13: 0000000000016120 R14: 0000000000016128 R15: 0000000000000000 [=C2=A0 139.943872] FS:=C2=A0 0000000000000000(0000) GS:ffff88803fc00000(= 0000) knlGS:0000000000000000 [=C2=A0 139.943872] CS:=C2=A0 0010 DS: 0000 ES: 0000 CR0: 000000008005003= 3 [=C2=A0 139.943872] CR2: 00007f704be8b000 CR3: 000000003901a004 CR4: 00000000000606f0 [=C2=A0 139.943872] Call Trace: [=C2=A0 139.943872]=C2=A0 ? __kmalloc+0x167/0x260 [=C2=A0 139.943872]=C2=A0 ? xen_manage_runstate_time+0x14a/0x170 [=C2=A0 139.943872]=C2=A0 xen_vcpu_restore+0x134/0x170 [=C2=A0 139.943872]=C2=A0 xen_hvm_post_suspend+0x1d/0x30 [=C2=A0 139.943872]=C2=A0 xen_arch_post_suspend+0x13/0x30 [=C2=A0 139.943872]=C2=A0 xen_suspend+0x87/0x190 [=C2=A0 139.943872]=C2=A0 multi_cpu_stop+0x6d/0x110 [=C2=A0 139.943872]=C2=A0 ? stop_machine_yield+0x10/0x10 [=C2=A0 139.943872]=C2=A0 cpu_stopper_thread+0x47/0x100 [=C2=A0 139.943872]=C2=A0 smpboot_thread_fn+0xc5/0x160 [=C2=A0 139.943872]=C2=A0 ? sort_range+0x20/0x20 [=C2=A0 139.943872]=C2=A0 kthread+0xfe/0x140 [=C2=A0 139.943872]=C2=A0 ? kthread_park+0x90/0x90 [=C2=A0 139.943872]=C2=A0 ret_from_fork+0x22/0x30 [=C2=A0 139.943872] Modules linked in: [=C2=A0 139.943872] ---[ end trace 74716859a6b4f0a8 ]--- [=C2=A0 139.943872] RIP: 0010:xen_vcpu_setup+0x16d/0x180 [=C2=A0 139.943872] Code: 4a 8b 14 f5 40 c9 1b 82 48 89 d8 48 89 2c 02 8b= 05 a4 d4 40 01 85 c0 0f 85 15 ff ff ff 4a 8b 04 f5 40 c9 1b 82 e9 f4 fe ff ff <0f> 0b b8 ed ff ff ff e9 14 ff ff ff e8 12 4f 86 00 66 90 66 66 66 [=C2=A0 139.943872] RSP: 0018:ffffc9000006bdb0 EFLAGS: 00010046 [=C2=A0 139.943872] RAX: 0000000000000000 RBX: ffffc9000014fe00 RCX: 0000000000000000 [=C2=A0 139.943872] RDX: ffff88803fc00000 RSI: 0000000000016128 RDI: 0000000000000000 [=C2=A0 139.943872] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [=C2=A0 139.943872] R10: ffffffff826174a0 R11: ffffc9000006bcb4 R12: 0000000000016120 [=C2=A0 139.943872] R13: 0000000000016120 R14: 0000000000016128 R15: 0000000000000000 [=C2=A0 139.943872] FS:=C2=A0 0000000000000000(0000) GS:ffff88803fc00000(= 0000) knlGS:0000000000000000 [=C2=A0 139.943872] CS:=C2=A0 0010 DS: 0000 ES: 0000 CR0: 000000008005003= 3 [=C2=A0 139.943872] CR2: 00007f704be8b000 CR3: 000000003901a004 CR4: 00000000000606f0 [=C2=A0 139.943872] Kernel panic - not syncing: Fatal exception [=C2=A0 139.943872] Shutting down cpus with NMI [=C2=A0 143.927559] Kernel Offset: disabled root@ovs104>