From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa5.hgst.iphmx.com ([216.71.153.144]:23763 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751223AbeCKDIU (ORCPT ); Sat, 10 Mar 2018 22:08:20 -0500 From: Bart Van Assche To: "linux-block@vger.kernel.org" , "jaco@uls.co.za" CC: "pieterk@uls.co.za" Subject: Re: disk-io lockup in 4.14.13 kernel Date: Sun, 11 Mar 2018 03:08:16 +0000 Message-ID: <1520737695.8740.4.camel@wdc.com> References: <16bae006-371f-1eea-56b6-8668249d870b@uls.co.za> <828103f7-7550-16a3-d482-8953adc5a234@wdc.com> <257ceeb7-f466-d13d-8818-829759eda587@uls.co.za> In-Reply-To: <257ceeb7-f466-d13d-8818-829759eda587@uls.co.za> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org T24gU2F0LCAyMDE4LTAzLTEwIGF0IDIyOjU2ICswMjAwLCBKYWNvIEtyb29uIHdyb3RlOg0KPiBP biAyMi8wMi8yMDE4IDE4OjQ2LCBCYXJ0IFZhbiBBc3NjaGUgd3JvdGU6DQo+ID4gT24gMDIvMjIv MTggMDI6NTgsIEphY28gS3Jvb24gd3JvdGU6DQo+ID4gPiBXZSd2ZSBiZWVuIHNlZWluZyBzcG9y YWRpYyBJTyBsb2NrdXBzIG9uIHJlY2VudCBrZXJuZWxzLg0KPiA+IA0KPiA+IEFyZSB5b3UgdXNp bmcgdGhlIGxlZ2FjeSBJL08gc3RhY2sgb3IgYmxrLW1xPyBJZiB5b3UgYXJlIG5vdCB5ZXQgdXNp bmcNCj4gPiBibGstbXEsIGNhbiB5b3Ugc3dpdGNoIHRvIGJsay1tcSArIHNjc2ktbXEgKyBkbS1t cT8gSWYgdGhlIGxvY2t1cCBpcw0KPiA+IHJlcHJvZHVjaWJsZSB3aXRoIGJsay1tcSwgY2FuIHlv dSBzaGFyZSB0aGUgb3V0cHV0IG9mIHRoZSBmb2xsb3dpbmcNCj4gPiBjb21tYW5kOg0KPiA+IA0K PiA+IChjZCAvc3lzL2tlcm5lbC9kZWJ1Zy9ibG9jayAmJiBmaW5kIC4gLXR5cGUgZiAtZXhlYyBn cmVwIC1hSCAuIHt9IFw7KQ0KPiANCj4gTG9va3MgbGlrZSB0aGUgbG9ja3VwcyBhcmUgZmFyIG1v cmUgZnJlcXVlbnQgd2l0aCBldmVyeXRoaW5nIG9uIG1xLiANCj4gSnVzdCB0byBjb25maXJtOg0K PiANCj4gQ09ORklHX1NDU0lfTVFfREVGQVVMVD15DQo+IENPTkZJR19ETV9NUV9ERUZBVUxUPXkN Cj4gDQo+IA0KPiBQbGVhc2UgZmluZCBhdHRhY2hlZCB0aGUgb3V0cHV0IGZyb20gdGhlIHJlcXVl c3RlZC4NCj4gDQo+IGh0dHA6Ly9kb3dubG9hZHMudWxzLmNvLnphL2xvY2t1cC9sb2NrdXAtMjAx ODAzMTAtMjIzMDM2LyBjb250YWlucw0KPiBhZGRpdGlvbmFsIHN0dWZmLCBzdXJyb3VuZGluZyB0 aGF0Lg0KDQpUaGFua3MsIHRoYXQgaGVscHMuIEluIGJsb2NrX2RlYnVnLnR4dCBJIHNlZSB0aGF0 IG9ubHkgZm9yIC9kZXYvc2RtIGENCnJlcXVlc3QgZ290IHN0dWNrOg0KDQokIGdyZXAgJ2J1c3k9 W14wXScgYmxvY2tfZGVidWcudHh0ICANCi4vc2RtL2hjdHgwL3RhZ3M6YnVzeT05DQoNCkJ1dCBJ IGNhbid0IHNlZSBpbiB0aGUgb3V0cHV0IHRoYXQgaGFzIGJlZW4gc2hhcmVkIHdoaWNoIEkvTyBz Y2hlZHVsZXIgaGFzDQpiZWVuIGNvbmZpZ3VyZWQgbm9yIHdoaWNoIFNDU0kgTExEIGlzIGludm9s dmVkLiBDYW4geW91IHBsZWFzZSBhbHNvIHNoYXJlDQp0aGF0IGluZm9ybWF0aW9uLCBlLmcuIGJ5 IHByb3ZpZGluZyB0aGUgb3V0cHV0IG9mIHRoZSBmb2xsb3dpbmcgY29tbWFuZHM6DQoNCmNhdCAv c3lzL2Jsb2NrL3NkbS9xdWV1ZS9zY2hlZHVsZXINCmZpbmQgL3N5cyAtbmFtZSBzZG0gIyBwcm92 aWRlcyB0aGUgUENJIElEDQpsc3BjaQ0KDQpUaGFua3MsDQoNCkJhcnQu