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Tsirkin" To: Jason Wang Subject: Re: WARNING in __mmdrop Message-ID: <20190722035657-mutt-send-email-mst@kernel.org> References: <0000000000008dd6bb058e006938@google.com> <000000000000964b0d058e1a0483@google.com> <20190721044615-mutt-send-email-mst@kernel.org> <75c43998-3a1c-676f-99ff-3d04663c3fcc@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <75c43998-3a1c-676f-99ff-3d04663c3fcc@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Mon, 22 Jul 2019 08:02:24 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190722_010224_851284_D6A44C40 X-CRM114-Status: GOOD ( 17.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mhocko@suse.com, peterz@infradead.org, ldv@altlinux.org, james.bottomley@hansenpartnership.com, linux-mm@kvack.org, namit@vmware.com, mingo@kernel.org, elena.reshetova@intel.com, keescook@chromium.org, aarcange@redhat.com, davem@davemloft.net, hch@infradead.org, christian@brauner.io, syzbot , syzkaller-bugs@googlegroups.com, jglisse@redhat.com, viro@zeniv.linux.org.uk, linux-arm-kernel@lists.infradead.org, wad@chromium.org, linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, luto@amacapital.net, ebiederm@xmission.com, akpm@linux-foundation.org, guro@fb.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBKdWwgMjIsIDIwMTkgYXQgMDE6MjE6NTlQTSArMDgwMCwgSmFzb24gV2FuZyB3cm90 ZToKPiAKPiBPbiAyMDE5LzcvMjEg5LiL5Y2INjowMiwgTWljaGFlbCBTLiBUc2lya2luIHdyb3Rl Ogo+ID4gT24gU2F0LCBKdWwgMjAsIDIwMTkgYXQgMDM6MDg6MDBBTSAtMDcwMCwgc3l6Ym90IHdy b3RlOgo+ID4gPiBzeXpib3QgaGFzIGJpc2VjdGVkIHRoaXMgYnVnIHRvOgo+ID4gPiAKPiA+ID4g Y29tbWl0IDdmNDY2MDMyZGM5ZTVhNjEyMTdmMjJlYTM0YjJkZjkzMjc4NmJiZmMKPiA+ID4gQXV0 aG9yOiBKYXNvbiBXYW5nIDxqYXNvd2FuZ0ByZWRoYXQuY29tPgo+ID4gPiBEYXRlOiAgIEZyaSBN YXkgMjQgMDg6MTI6MTggMjAxOSArMDAwMAo+ID4gPiAKPiA+ID4gICAgICB2aG9zdDogYWNjZXNz IHZxIG1ldGFkYXRhIHRocm91Z2gga2VybmVsIHZpcnR1YWwgYWRkcmVzcwo+ID4gPiAKPiA+ID4g YmlzZWN0aW9uIGxvZzogIGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvYmlzZWN0LnR4 dD94PTE0OWE4YTIwNjAwMDAwCj4gPiA+IHN0YXJ0IGNvbW1pdDogICA2ZDIxYTQxYiBBZGQgbGlu dXgtbmV4dCBzcGVjaWZpYyBmaWxlcyBmb3IgMjAxOTA3MTgKPiA+ID4gZ2l0IHRyZWU6ICAgICAg IGxpbnV4LW5leHQKPiA+ID4gZmluYWwgY3Jhc2g6ICAgIGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNw b3QuY29tL3gvcmVwb3J0LnR4dD94PTE2OWE4YTIwNjAwMDAwCj4gPiA+IGNvbnNvbGUgb3V0cHV0 OiBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94L2xvZy50eHQ/eD0xMjlhOGEyMDYwMDAw MAo+ID4gPiBrZXJuZWwgY29uZmlnOiAgaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20veC8u Y29uZmlnP3g9MzQzMGExNTFlMTQ1MjMzMQo+ID4gPiBkYXNoYm9hcmQgbGluazogaHR0cHM6Ly9z eXprYWxsZXIuYXBwc3BvdC5jb20vYnVnP2V4dGlkPWU1ODExMmQ3MWY3NzExM2RkYjdiCj4gPiA+ IHN5eiByZXBybzogICAgICBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94L3JlcHJvLnN5 ej94PTEwMTM5ZTY4NjAwMDAwCj4gPiA+IAo+ID4gPiBSZXBvcnRlZC1ieTogc3l6Ym90K2U1ODEx MmQ3MWY3NzExM2RkYjdiQHN5emthbGxlci5hcHBzcG90bWFpbC5jb20KPiA+ID4gRml4ZXM6IDdm NDY2MDMyZGM5ZSAoInZob3N0OiBhY2Nlc3MgdnEgbWV0YWRhdGEgdGhyb3VnaCBrZXJuZWwgdmly dHVhbAo+ID4gPiBhZGRyZXNzIikKPiA+ID4gCj4gPiA+IEZvciBpbmZvcm1hdGlvbiBhYm91dCBi aXNlY3Rpb24gcHJvY2VzcyBzZWU6IGh0dHBzOi8vZ29vLmdsL3Rwc21FSiNiaXNlY3Rpb24KPiA+ IAo+ID4gT0sgSSBwb2tlZCBhdCB0aGlzIGZvciBhIGJpdCwgSSBzZWUgc2V2ZXJhbCB0aGluZ3Mg dGhhdAo+ID4gd2UgbmVlZCB0byBmaXgsIHRob3VnaCBJJ20gbm90IHlldCBzdXJlIGl0J3MgdGhl IHJlYXNvbiBmb3IKPiA+IHRoZSBmYWlsdXJlczoKPiA+IAo+ID4gCj4gPiAxLiBtbXVfbm90aWZp ZXJfcmVnaXN0ZXIgc2hvdWxkbid0IGJlIGNhbGxlZCBmcm9tIHZob3N0X3ZyaW5nX3NldF9udW1f YWRkcgo+ID4gICAgIFRoYXQncyBqdXN0IGEgYmFkIGhhY2ssCj4gCj4gCj4gVGhpcyBpcyB1c2Vk IHRvIGF2b2lkIGhvbGRpbmcgbG9jayB3aGVuIGNoZWNraW5nIHdoZXRoZXIgdGhlIGFkZHJlc3Nl cyBhcmUKPiBvdmVybGFwcGVkLiBPdGhlcndpc2Ugd2UgbmVlZCB0byB0YWtlIHNwaW5sb2NrIGZv ciBlYWNoIGludmFsaWRhdGlvbiByZXF1ZXN0Cj4gZXZlbiBpZiBpdCB3YXMgdGhlIHZhIHJhbmdl IHRoYXQgaXMgbm90IGludGVyZXN0ZWQgZm9yIHVzLiBUaGlzIHdpbGwgYmUgdmVyeQo+IHNsb3cg ZS5nIGR1cmluZyBndWVzdCBib290LgoKS1ZNIHNlZW1zIHRvIGRvIGV4YWN0bHkgdGhhdC4KSSB0 cmllZCBhbmQgZ3Vlc3QgZG9lcyBub3Qgc2VlbSB0byBib290IGFueSBzbG93ZXIuCkRvIHlvdSBv YnNlcnZlIGFueSBzbG93ZG93bj8KCk5vdyBJIHRvb2sgYSBoYXJkIGxvb2sgYXQgdGhlIHVhZGRy IGhhY2tlcnkgaXQgcmVhbGx5IG1ha2VzCm1lIG5lcnZpb3VzLiBTbyBJIHRoaW5rIGZvciB0aGlz IHJlbGVhc2Ugd2Ugd2FudCBzb21ldGhpbmcKc2FmZSwgYW5kIG9wdGltaXphdGlvbnMgb24gdG9w LiBBcyBhbiBhbHRlcm5hdGl2ZSByZXZlcnQgdGhlCm9wdGltaXphdGlvbiBhbmQgdHJ5IGFnYWlu IGZvciBuZXh0IG1lcmdlIHdpbmRvdy4KCgotLSAKTVNUCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdAps aW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVh ZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==