From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: INFO: rcu detected stall in sys_sendfile64 (2) Date: Tue, 12 Mar 2019 10:00:36 +0200 Message-ID: <871s3cfrob.fsf@intel.com> References: <00000000000010b2fc057fcdfaba@google.com> <0000000000008c75b50583ddb5f8@google.com> <20190312040829.GQ2217@ZenIV.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190312040829.GQ2217@ZenIV.linux.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Al Viro , syzbot Cc: jack@suse.cz, penguin-kernel@i-love.sakura.ne.jp, david@fromorbit.com, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, darrick.wong@oracle.com, hughd@google.com, willy@infradead.org, airlied@linux.ie, mingo@redhat.com, mszeredi@redhat.com, amir73il@gmail.com, intel-gfx@lists.freedesktop.org, syzkaller-bugs@googlegroups.com, rodrigo.vivi@intel.com, dvyukov@google.com, linux-kernel@vger.kernel.org, eparis@redhat.com, peterz@infradead.org, jrdr.linux@gmail.com, hannes@cmpxchg.org, akpm@linux-foundation.org List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCAxMiBNYXIgMjAxOSwgQWwgVmlybyA8dmlyb0B6ZW5pdi5saW51eC5vcmcudWs+IHdy b3RlOgo+IE9uIE1vbiwgTWFyIDExLCAyMDE5IGF0IDA4OjU5OjAwUE0gLTA3MDAsIHN5emJvdCB3 cm90ZToKPj4gc3l6Ym90IGhhcyBiaXNlY3RlZCB0aGlzIGJ1ZyB0bzoKPj4gCj4+IGNvbW1pdCAz NGUwN2U0MmM1NWFlYWE3OGU5M2IwNTdhNjY2NGUyZWNkZTNmYWRiCj4+IEF1dGhvcjogQ2hyaXMg V2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4+IERhdGU6ICAgVGh1IEZlYiA4IDEw OjU0OjQ4IDIwMTggKzAwMDAKPj4gCj4+ICAgICBkcm0vaTkxNTogQWRkIG1pc3Npbmcga2VybmVs ZG9jIGZvciAnZW50JyBpbiBpOTE1X2RyaXZlcl9pbml0X2Vhcmx5Cj4+IAo+PiBiaXNlY3Rpb24g bG9nOiAgaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20veC9iaXNlY3QudHh0P3g9MTMyMjAy ODMyMDAwMDAKPj4gc3RhcnQgY29tbWl0OiAgIDM0ZTA3ZTQyIGRybS9pOTE1OiBBZGQgbWlzc2lu ZyBrZXJuZWxkb2MgZm9yICdlbnQnIGluIGk5MTUuLgo+PiBnaXQgdHJlZTogICAgICAgdXBzdHJl YW0KPj4gZmluYWwgY3Jhc2g6ICAgIGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvcmVw b3J0LnR4dD94PTEwYTIwMjgzMjAwMDAwCj4+IGNvbnNvbGUgb3V0cHV0OiBodHRwczovL3N5emth bGxlci5hcHBzcG90LmNvbS94L2xvZy50eHQ/eD0xNzIyMDI4MzIwMDAwMAo+PiBrZXJuZWwgY29u ZmlnOiAgaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20veC8uY29uZmlnP3g9YWJjM2RjOWI3 YTkwMDI1OAo+PiBkYXNoYm9hcmQgbGluazogaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20v YnVnP2V4dGlkPTE1MDVjODBjNzQyNTZjNjExOGE1Cj4+IHVzZXJzcGFjZSBhcmNoOiBhbWQ2NAo+ PiBzeXogcmVwcm86ICAgICAgaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20veC9yZXByby5z eXo/eD0xMmM0ZGMyOGMwMDAwMAo+PiBDIHJlcHJvZHVjZXI6ICAgaHR0cHM6Ly9zeXprYWxsZXIu YXBwc3BvdC5jb20veC9yZXByby5jP3g9MTVkZjQxMDhjMDAwMDAKPj4gCj4+IFJlcG9ydGVkLWJ5 OiBzeXpib3QrMTUwNWM4MGM3NDI1NmM2MTE4YTVAc3l6a2FsbGVyLmFwcHNwb3RtYWlsLmNvbQo+ PiBGaXhlczogMzRlMDdlNDIgKCJkcm0vaTkxNTogQWRkIG1pc3Npbmcga2VybmVsZG9jIGZvciAn ZW50JyBpbgo+PiBpOTE1X2RyaXZlcl9pbml0X2Vhcmx5IikKPgo+IFVtbS4uLiAgTWlnaHQgYmUg YSBnb29kIGlkZWEgdG8gYWRkIHNvbWUgcGxhdXNpYmlsaXR5IGZpbHRlcnMgLSBpdCBpcywKPiBp biB0aGVvcnksIHBvc3NpYmxlIHRoYXQgYWRkaW5nIGEgbGluZSBpbiBhIGNvbW1lbnQgY2hhbmdl cyBiZWhhdmlvdXIKPiAod2l0aG91dCBjb21waWxlciBidWdzLCBldmVuIC0gcGxheWluZyB3aXRo IF9fTElORV9fIGlzIGFsbCBpdCB3b3VsZAo+IHRha2UpLCBidXQgdGhlIG9kZHMgdGhhdCBpdCdz IF9ub3RfIGEgZmFsc2UgcG9zaXRpdmUgYXJlIHZlcnkgbG93LgoKSWYgaXQncyBub3QgYSBmYWxz ZSBwb3NpdGl2ZSwgaXQncyBib3VuZCB0byBiZSBnb29kIHNvdXJjZSBtYXRlcmlhbCBmb3IKSU9D Q0MuCgpCUiwKSmFuaS4KCgotLSAKSmFuaSBOaWt1bGEsIEludGVsIE9wZW4gU291cmNlIEdyYXBo aWNzIENlbnRlcgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcK aHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWw=