From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E182C7618B for ; Fri, 26 Jul 2019 13:36:43 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0074A22BEF for ; Fri, 26 Jul 2019 13:36:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="rQOVn+ei" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0074A22BEF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:References: To:From:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sq4P/BkEpa9L6B2bScRdN0fRhRApczYksk3h87Lb7ZA=; b=rQOVn+eia20O7PWRjwimRZtf/ r1horhSxJCNrZ7j8Gq8dJl5wIJ/BRNuumZHDnQ87tkT6GWCg3hlQaiycxHBhcqeKxZF3wlYU/eWue Cg7bZrJrvsQlaAA2pjEmA9uVuJqOyJdMJXATV3GEX8L2MWNi8Pi+EGkO0iwCRpUZugdibg0VmCi2O pcw+1xkUgmNVHergBFxvzR65uz/dFviKFuHpmKWQGX6Pu+juuoTcbjMrB++3fU6ZPnc/xSgGmuTL9 T+EfBINhpKaGbb+Ux0m+Da6ZABx8e7mvawXRfxPJUgpxr44YSVhoOTIiZLyUgteVCW4Mnteey1a47 fL7X29u0Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hr0On-0000hJ-7x; Fri, 26 Jul 2019 13:36:41 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hr0Oj-0000g7-HQ for linux-arm-kernel@lists.infradead.org; Fri, 26 Jul 2019 13:36:38 +0000 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1DB4846671; Fri, 26 Jul 2019 13:36:35 +0000 (UTC) Received: from [10.72.12.238] (ovpn-12-238.pek2.redhat.com [10.72.12.238]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0A8B06A238; Fri, 26 Jul 2019 13:36:19 +0000 (UTC) Subject: Re: WARNING in __mmdrop From: Jason Wang To: "Michael S. Tsirkin" References: <20190723051828-mutt-send-email-mst@kernel.org> <20190725012149-mutt-send-email-mst@kernel.org> <55e8930c-2695-365f-a07b-3ad169654d28@redhat.com> <20190725042651-mutt-send-email-mst@kernel.org> <84bb2e31-0606-adff-cf2a-e1878225a847@redhat.com> <20190725092332-mutt-send-email-mst@kernel.org> <11802a8a-ce41-f427-63d5-b6a4cf96bb3f@redhat.com> <20190726074644-mutt-send-email-mst@kernel.org> <5cc94f15-b229-a290-55f3-8295266edb2b@redhat.com> <20190726082837-mutt-send-email-mst@kernel.org> Message-ID: Date: Fri, 26 Jul 2019 21:36:18 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 26 Jul 2019 13:36:35 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190726_063637_611829_767766B9 X-CRM114-Status: GOOD ( 17.47 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDIwMTkvNy8yNiDkuIvljYg4OjUzLCBKYXNvbiBXYW5nIHdyb3RlOgo+Cj4gT24gMjAxOS83 LzI2IOS4i+WNiDg6MzgsIE1pY2hhZWwgUy4gVHNpcmtpbiB3cm90ZToKPj4gT24gRnJpLCBKdWwg MjYsIDIwMTkgYXQgMDg6MDA6NThQTSArMDgwMCwgSmFzb24gV2FuZyB3cm90ZToKPj4+IE9uIDIw MTkvNy8yNiDkuIvljYg3OjQ5LCBNaWNoYWVsIFMuIFRzaXJraW4gd3JvdGU6Cj4+Pj4gT24gVGh1 LCBKdWwgMjUsIDIwMTkgYXQgMTA6MjU6MjVQTSArMDgwMCwgSmFzb24gV2FuZyB3cm90ZToKPj4+ Pj4gT24gMjAxOS83LzI1IOS4i+WNiDk6MjYsIE1pY2hhZWwgUy4gVHNpcmtpbiB3cm90ZToKPj4+ Pj4+PiBFeGFjdGx5LCBhbmQgdGhhdCdzIHRoZSByZWFzb24gYWN0dWFsbHkgSSB1c2Ugc3luY2hy b25pemVfcmN1KCkgCj4+Pj4+Pj4gdGhlcmUuCj4+Pj4+Pj4KPj4+Pj4+PiBTbyB0aGUgY29uY2Vy biBpcyBzdGlsbCB0aGUgcG9zc2libGUgc3luY2hyb25pemVfZXhwZWRpdGVkKCk/Cj4+Pj4+PiBJ IHRoaW5rIHN5bmNocm9uaXplX3NyY3VfZXhwZWRpdGVkLgo+Pj4+Pj4KPj4+Pj4+IHN5bmNocm9u aXplX2V4cGVkaXRlZCBzZW5kcyBsb3RzIG9mIElQSSBhbmQgaXMgYmFkIGZvciByZWFsdGltZSBW TXMuCj4+Pj4+Pgo+Pj4+Pj4+IENhbiBJIGRvIHRoaXMKPj4+Pj4+PiBvbiB0aHJvdWdoIGFub3Ro ZXIgc2VyaWVzIG9uIHRvcCBvZiB0aGUgaW5jb21pbmcgVjI/Cj4+Pj4+Pj4KPj4+Pj4+PiBUaGFu a3MKPj4+Pj4+Pgo+Pj4+Pj4gVGhlIHF1ZXN0aW9uIGlzIHRoaXM6IGlzIHRoaXMgc3RpbGwgYSBn YWluIGlmIHdlIHN3aXRjaCB0byB0aGUKPj4+Pj4+IG1vcmUgZXhwZW5zaXZlIHNyY3U/IElmIHll cyB0aGVuIHdlIGNhbiBrZWVwIHRoZSBmZWF0dXJlIG9uLAo+Pj4+PiBJIHRoaW5rIHdlIG9ubHkg Y2FyZSBhYm91dCB0aGUgY29zdCBvbiBzcmN1X3JlYWRfbG9jaygpIHdoaWNoIAo+Pj4+PiBsb29r cyBwcmV0dHkKPj4+Pj4gdGlueSBmb3JtIG15IHBvaW50IG9mIHZpZXcuIFdoaWNoIGlzIGJhc2lj YWxseSBhIFJFQURfT05DRSgpICsgCj4+Pj4+IFdSSVRFX09OQ0UoKS4KPj4+Pj4KPj4+Pj4gT2Yg Y291cnNlIEkgY2FuIGJlbmNobWFyayB0byBzZWUgdGhlIGRpZmZlcmVuY2UuCj4+Pj4+Cj4+Pj4+ Cj4+Pj4+PiBpZiBub3Qgd2UnbGwgcHV0IGl0IG9mZiB1bnRpbCBuZXh0IHJlbGVhc2UgYW5kIHRo aW5rCj4+Pj4+PiBvZiBiZXR0ZXIgc29sdXRpb25zLiByY3UtPnNyY3UgaXMganVzdCBhIGZpbmQg YW5kIHJlcGxhY2UsCj4+Pj4+PiBkb24ndCBzZWUgd2h5IHdlIG5lZWQgdG8gZGVmZXIgdGhhdC4g Y2FuIGJlIGEgc2VwYXJhdGUgcGF0Y2gKPj4+Pj4+IGZvciBzdXJlLCBidXQgd2UgbmVlZCB0byBr bm93IGhvdyB3ZWxsIGl0IHdvcmtzLgo+Pj4+PiBJIHRoaW5rIEkgZ2V0IGhlcmUsIGxldCBtZSB0 cnkgdG8gZG8gdGhhdCBpbiBWMiBhbmQgbGV0J3Mgc2VlIHRoZSAKPj4+Pj4gbnVtYmVycy4KPj4+ Pj4KPj4+Pj4gVGhhbmtzCj4+Pgo+Pj4gSXQgbG9va3MgdG8gbWUgZm9yIHRyZWUgcmN1LCBpdHMg c3JjdV9yZWFkX2xvY2soKSBoYXZlIGEgbWIoKSB3aGljaCAKPj4+IGlzIHRvbwo+Pj4gZXhwZW5z aXZlIGZvciB1cy4KPj4gSSB3aWxsIHRyeSB0byBwb25kZXIgdXNpbmcgdnEgbG9jayBpbiBzb21l IHdheS4KPj4gTWF5YmUgd2l0aCB0cnlsb2NrIHNvbWVob3cgLi4uCj4KPgo+IE9rLCBsZXQgbWUg cmV0cnkgaWYgbmVjZXNzYXJ5IChidXQgSSBkbyByZW1lbWJlciBJIGVuZCB1cCB3aXRoIAo+IGRl YWRsb2NrcyBsYXN0IHRyeSkuIAoKCk9rLCBJIHBsYXkgYSBsaXR0bGUgd2l0aCB0aGlzLiBBbmQg aXQgd29ya3Mgc28gZmFyLiBXaWxsIGRvIG1vcmUgdGVzdGluZyAKdG9tb3Jyb3cuCgpPbmUgcmVh c29uIGNvdWxkIGJlIEkgc3dpdGNoIHRvIHVzZSBnZXRfdXNlcl9wYWdlc19mYXN0KCkgdG8gCl9f Z2V0X3VzZXJfcGFnZXNfZmFzdCgpIHdoaWNoIGRvZXNuJ3QgbmVlZCBtbWFwX3NlbS4KClRoYW5r cwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4 LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFk Lm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFy bS1rZXJuZWwK