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Thu, 9 Apr 2020 23:06:13 +0000 From: Michael Kelley To: Wei Liu CC: "ltykernel@gmail.com" , KY Srinivasan , Haiyang Zhang , Stephen Hemminger , Wei Liu , "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "hpa@zytor.com" , "x86@kernel.org" , "arnd@arndb.de" , Tianyu Lan , "linux-hyperv@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , vkuznets Subject: RE: [PATCH V4 6/6] x86/Hyper-V: Report crash data in die() when panic_on_oops is set Thread-Topic: [PATCH V4 6/6] x86/Hyper-V: Report crash data in die() when panic_on_oops is set Thread-Index: AQHWDCuMQ3aW2IzR1UuBUYCKtr2r9ahvrWpQgAFVhACAAGrnEA== Date: Thu, 9 Apr 2020 23:06:13 +0000 Message-ID: References: <20200406155331.2105-1-Tianyu.Lan@microsoft.com> <20200406155331.2105-7-Tianyu.Lan@microsoft.com> <20200409164054.72es2ykmbef3jbui@debian> In-Reply-To: <20200409164054.72es2ykmbef3jbui@debian> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Enabled=True; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 280e18eb-ca32-4117-f1f2-08d7dcda99ba X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2020 23:06:13.4432 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: OWkxrzJsIv2X3thJxVlF73VxoFidraATWDGed/MnC0RxMgjdQQ0H/FaJznm+Lc2OXTCi3LI3aGssGnmD/k8aiRMELwvanzXm8euzxFtBHtA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR2101MB1081 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wei Liu Sent: Thursday, April 9, 2020 9:41 AM >=20 > On Wed, Apr 08, 2020 at 08:19:47PM +0000, Michael Kelley wrote: > > From: Tianyu Lan Sent: Monday, April 6, 2020= 8:54 AM > > > > > > When oops happens with panic_on_oops unset, the oops > > > thread is killed by die() and system continues to run. > > > In such case, guest should not report crash register > > > data to host since system still runs. Check panic_on_oops > > > and return directly in hyperv_report_panic() when the function > > > is called in the die() and panic_on_oops is unset. Fix it. > > > > > > Fixes: 7ed4325a44ea ("Drivers: hv: vmbus: Make panic reporting to be = more useful") > > > Signed-off-by: Tianyu Lan > > > --- > > > Change since v3: > > > - Fix compile error. > > > - Add fix commit in the change log > > > --- > > > arch/x86/hyperv/hv_init.c | 6 +++++- > > > drivers/hv/vmbus_drv.c | 5 +++-- > > > include/asm-generic/mshyperv.h | 2 +- > > > 3 files changed, 9 insertions(+), 4 deletions(-) > > > > Reviewed-by: Michael Kelley >=20 > It seems to me only the last patch is new, others are already in my > tree, so I only apply the last one. >=20 > Let me know if my understanding is wrong. >=20 Tianyu added "Fixes:" tags to some of the other patches in the series. It appears the version you had already queued doesn't have those "Fixes:" tags. Michael