From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH] drm/i915: Convert WARNs during userptr revoke to SIGBUS Date: Thu, 8 Oct 2015 10:45:47 +0100 Message-ID: <56163B4B.6010604@linux.intel.com> References: <1443038844-29873-1-git-send-email-chris@chris-wilson.co.uk> <20150928134222.GL3383@phenom.ffwll.local> <20150928135230.GB9929@nuc-i3427.alporthouse.com> <20150928141457.GY3383@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id A234D6EC9C for ; Thu, 8 Oct 2015 02:45:49 -0700 (PDT) In-Reply-To: <20150928141457.GY3383@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Daniel Vetter , Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Ck9uIDI4LzA5LzE1IDE1OjE0LCBEYW5pZWwgVmV0dGVyIHdyb3RlOgo+IE9uIE1vbiwgU2VwIDI4 LCAyMDE1IGF0IDAyOjUyOjMwUE0gKzAxMDAsIENocmlzIFdpbHNvbiB3cm90ZToKPj4gT24gTW9u LCBTZXAgMjgsIDIwMTUgYXQgMDM6NDI6MjJQTSArMDIwMCwgRGFuaWVsIFZldHRlciB3cm90ZToK Pj4+IE9uIFdlZCwgU2VwIDIzLCAyMDE1IGF0IDA5OjA3OjI0UE0gKzAxMDAsIENocmlzIFdpbHNv biB3cm90ZToKPj4+PiBJZiB0aGUgY2xpZW50IHJldm9rZXMgdGhlIHZpcnR1YWwgYWRkcmVzcyBp dCBhc2tlZCB0byBiZSBtYXBwZWQgaW50byBHUFUKPj4+PiBzcGFjZSB2aWEgdXNlcnB0ciAoYnkg dXNpbmcgYW55dGhpbmcgYWxvbmcgdGhlIGxpbmVzIG9mIG1tYXAsIG1wcm90ZWN0LAo+Pj4+IG1h ZHZpc2UsIG11bm1hcCwgZnRydW5jYXRlIGV0YykgdGhlIG1tdSBub3RpZmllciBzZW5kcyBhIHJh bmdlCj4+Pj4gaW52YWxpZGF0ZSBjb21tYW5kIHRvIHVzZXJwdHIuIFVwb24gcmVjZWl2aW5nIHRo ZSBpbnZhbGlkYXRpb24gc2lnbmFsCj4+Pj4gZm9yIHRoZSByZXZva2VkIHJhbmdlLCB3ZSB0cnkg dG8gcmVsZWFzZSB0aGUgc3RydWN0IHBhZ2VzIHdlIHBpbm5lZCBpbnRvCj4+Pj4gdGhlIEdUVC4g SG93ZXZlciwgdGhpcyBjYW4gZmFpbCBpZiBhbnkgb2YgdGhlIEdQVSdzIFZNQSBhcmUgcGlubmVk IGZvcgo+Pj4+IHVzZSBieSB0aGUgaGFyZHdhcmUgKGkuZS4gZGVzcGl0ZSB0aGUgdXNlcidzIGlu dGVudGlvbiB3ZSBjYW5ub3QKPj4+PiByZWxpbnF1aXNoIHRoZSBjbGllbnQncyBhZGRyZXNzIHJh bmdlIGFuZCBrZWVwIHVwdG9kYXRlIHdpdGggd2hhdGV2ZXIgaXMKPj4+PiBwbGFjZWQgaW4gdGhl cmUpLiBDdXJyZW50bHkgd2UgZW1pdCBhIGZldyBXQVJOIHNvIHRoYXQgd2Ugd291bGQgbm90aWNl Cj4+Pj4gaWYgdGhpcyBldmVyeSBvY2N1cnJlZCBpbiB0aGUgd2lsZDsgaXQgaGFzLiBTYWRseSB0 aGlzIG1lYW5zIHdlIG5lZWQgdG8KPj4+PiByZXBsYWNlIHRob3NlIFdBUk5zIHdpdGggdGhlIHBy b3BlciBTSUdCVVMgdG8gdGhlIG9mZmVuZGluZyBjbGllbnRzCj4+Pj4gaW5zdGVhZC4KPj4+Pgo+ Pj4+IFNpZ25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVr Pgo+Pj4+IENjOiBUdnJ0a28gVXJzdWxpbiA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgo+Pj4+ IENjOiBNaWNoYcWCIFdpbmlhcnNraSA8bWljaGFsLndpbmlhcnNraUBpbnRlbC5jb20+Cj4+Pj4g LS0tCj4+Pj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV91c2VycHRyLmMgfCA0MSAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tLS0KPj4+PiAgIDEgZmlsZSBjaGFuZ2VkLCAz NyBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQo+Pj4+Cj4+Pj4gZGlmZiAtLWdpdCBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX3VzZXJwdHIuYyBiL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2k5MTVfZ2VtX3VzZXJwdHIuYwo+Pj4+IGluZGV4IGY3NWQ5MDExODg4OC4uZWZiNDA0Yjlm ZTY5IDEwMDY0NAo+Pj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX3VzZXJw dHIuYwo+Pj4+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX3VzZXJwdHIuYwo+ Pj4+IEBAIC04MSwxMSArODEsNDQgQEAgc3RhdGljIHZvaWQgX19jYW5jZWxfdXNlcnB0cl9fd29y a2VyKHN0cnVjdCB3b3JrX3N0cnVjdCAqd29yaykKPj4+PiAgIAkJd2FzX2ludGVycnVwdGlibGUg PSBkZXZfcHJpdi0+bW0uaW50ZXJydXB0aWJsZTsKPj4+PiAgIAkJZGV2X3ByaXYtPm1tLmludGVy cnVwdGlibGUgPSBmYWxzZTsKPj4+Pgo+Pj4+IC0JCWxpc3RfZm9yX2VhY2hfZW50cnlfc2FmZSh2 bWEsIHRtcCwgJm9iai0+dm1hX2xpc3QsIG9ial9saW5rKSB7Cj4+Pj4gLQkJCWludCByZXQgPSBp OTE1X3ZtYV91bmJpbmQodm1hKTsKPj4+PiAtCQkJV0FSTl9PTihyZXQgJiYgcmV0ICE9IC1FSU8p Owo+Pj4+ICsJCWxpc3RfZm9yX2VhY2hfZW50cnlfc2FmZSh2bWEsIHRtcCwgJm9iai0+dm1hX2xp c3QsIG9ial9saW5rKQo+Pj4+ICsJCQlpOTE1X3ZtYV91bmJpbmQodm1hKTsKPj4+PiArCQlpZiAo aTkxNV9nZW1fb2JqZWN0X3B1dF9wYWdlcyhvYmopKSB7Cj4+Pj4gKwkJCXN0cnVjdCB0YXNrX3N0 cnVjdCAqcDsKPj4+PiArCj4+Pj4gKwkJCURSTV9FUlJPUigiVW5hYmxlIHRvIHJldm9rZSBvd25l cnNoaXAgYnkgdXNlcnB0ciBvZiIKPj4+PiArCQkJCSAgIiBpbnZhbGlkYXRlZCBhZGRyZXNzIHJh bmdlLCBzZW5kaW5nIFNJR0JVUyIKPj4+PiArCQkJCSAgIiB0byBhdHRhY2hlZCBjbGllbnRzLlxu Iik7Cj4+Pj4gKwo+Pj4+ICsJCQlyY3VfcmVhZF9sb2NrKCk7Cj4+Pj4gKwkJCWZvcl9lYWNoX3By b2Nlc3MocCkgewo+Pj4+ICsJCQkJc2lnaW5mb190IGluZm87Cj4+Pj4gKwo+Pj4+ICsJCQkJLyog VGhpcyBkb2Vzbid0IGNhcHR1cmUgZXZlcnlvbmUgd2hvIGhhcwo+Pj4+ICsJCQkJICogdGhlIHBh Z2VzIHBpbm5lZCBiZWhpbmQgYSBWTUEgYXMgd2UKPj4+PiArCQkJCSAqIGRvIG5vdCBoYXZlIHRo YXQgdHJhY2tpbmcgaW5mb3JtYXRpb24KPj4+PiArCQkJCSAqIGF2YWlsYWJsZSwgaXQgZG9lcyBo b3dldmVyIGtpbGwgdGhlCj4+Pj4gKwkJCQkgKiBvcmlnaW5hbCBwcm9jZXNzIChhbmQgc2libGlu Z3MpIHdobwo+Pj4+ICsJCQkJICogY3JlYXRlZCB0aGUgdXNlcnB0ciBhbmQgcHJlc3VtYWJseSB0 cmllZAo+Pj4+ICsJCQkJICogdG8gcmV1c2UgdGhlIGFkZHJlc3Mgc3BhY2UgZGVzcGl0ZSBoYXZp bmcKPj4+PiArCQkJCSAqIHBpbm5lZCBpdCAocG9zc2libHkgaW5kaXJlY3RseSkgdG8gdGhlIGh3 Lgo+Pj4+ICsJCQkJICogQXJndWFibHksIHdlIGRvbid0IGV2ZW4gd2FudCB0byBraWxsIHRoZQo+ Pj4+ICsJCQkJICogb3RoZXIgcHJvY2Vzc2VzIGFzIHRoZXkgYXJlIG5vdCBhdCBmYXVsdCwKPj4+ PiArCQkJCSAqIGxpa2VseSB0byBiZSBhIGRpc3BsYXkgc2VydmVyLCBhbmQgaG9wZWZ1bGx5Cj4+ Pj4gKwkJCQkgKiB3aWxsIHJlbGVhc2UgdGhlIHBhZ2VzIGluIGR1ZSBjb3Vyc2Ugb25jZQo+Pj4+ ICsJCQkJICogdGhlIGNsaWVudCBpcyBkZWFkLgo+Pj4+ICsJCQkJICovCj4+Pj4gKwkJCQlpZiAo cC0+bW0gIT0gb2JqLT51c2VycHRyLm1tLT5tbSkKPj4+PiArCQkJCQljb250aW51ZTsKPj4+PiAr Cj4+Pj4gKwkJCQlpbmZvLnNpX3NpZ25vID0gU0lHQlVTOwo+Pj4+ICsJCQkJaW5mby5zaV9lcnJu byA9IDA7Cj4+Pj4gKwkJCQlpbmZvLnNpX2NvZGUgPSBCVVNfQURSRVJSOwo+Pj4+ICsJCQkJaW5m by5zaV9hZGRyID0gKHZvaWQgX191c2VyICopb2JqLT51c2VycHRyLnB0cjsKPj4+PiArCQkJCWZv cmNlX3NpZ19pbmZvKFNJR0JVUywgJmluZm8sIHApOwo+Pj4+ICsJCQl9Cj4+Pj4gKwkJCXJjdV9y ZWFkX3VubG9jaygpOwo+Pj4KPj4+IFdoeSBkbyB3ZSBuZWVkIHRvIHNlbmQgYSBTSUdCVVM/IEl0 IHdvbid0IHRlYXIgZG93biB0aGUgb2ZmZW5kaW5nIGdlbSBibywKPj4+IGFueSBuZXcgdXNlcnMg d2lsbCBob3BlZnVsbHkgZ2V0IGl0LCBhbmQgYWJ1c2luZyBTSUdCVVMgd2l0aG91dCB0aGUgdGhy ZWFkCj4+PiBhY3R1YWxseSBkb2luZyBhIG1lbW9yeSBhY2Nlc3MgaXMgYSBiaXQgc3VycHJpc2lu Zy4gRFJNX0RFQlVHIHNlZW1zIHRvIGJlCj4+PiB0aGUgbW9zdCB3ZSBjYW4gZG8gaGVyZSBJIHRo aW5rIC0gSSB0aGluayB1c2Vyc3BhY2UgYmVpbmcgYWJsZSB0byBkbyB0aGlzCj4+PiBpcyBqdXN0 IGEgZnVuZGFtZW50YWwgcHJvcGVydHkgb2YgdXNlcnB0ci4KPj4KPj4gSXQgaXMgbm90IHRoZSBi byB0aGF0IGlzIGF0IGZhdWx0IGJ1dCB0aGUgKmNsaWVudCdzKiAqYWRkcmVzcyogKnNwYWNlKgo+ PiB0aGF0IGlzIGJlaW5nIGNoYW5nZWQuIEl0IGlzIGVxdWl2YWxlbnQgdG8gbW1hcCBvbiBhIHRy dW5jYXRlZCBmaWxlIGkuZS4KPj4gaWYgdGhlIGNsaWVudCB0cmllcyB0byB1c2UgaXRzIG1tYXBw aW5nIGFmdGVyIGl0IGhhcyB0cnVuY2F0ZWQgdGhlIGZpbGUKPj4gaXQgaXMgc2NvbGRlZCB2aWEg U0lHQlVTLgo+Cj4gQnV0IGV4aXN0aW5nIFNJR0JVUyBpcyB0aHJlYWQtYm91bmQgYW5kIGNvbWVz IHdpdGggdGhlIGZhdWx0IGFkZHJlc3MKPiBhdHRhY2hlZC4gVGhpcyBpcyBqdXN0IHRoZSBncHUg YmVpbmcgYSBiaXQgdW5oYXBweSwgc28gdGhlIFNJR0JVUyBjb21lcwo+IG91dCBvZiBjb21wbGV0 ZSBub3doZXJlIHRvIHNtYWNrIHRoZSB1c2Vyc3BhY2UgdGhyZWFkLiBBbnkga2luZCBvZiBTSUdC VVMKPiBjYXRjaGVyIHVzZXJzcGFjZSBoYXMgZm9yIG90aGVyIHJlYXNvbnMgbWlnaHQgYmUgc3Vw cmVtZWx5IHN1cnByaXNlZCBieQo+IHRoaXMgYW5kIGRvIHN0dXBpZCB0aGluZ3MuIEhlbmNlIEkg ZG9uJ3QgdGhpbmsgdGhyb3dpbmcgU0lHQlVTIGhlcmUgaXMKPiBjb3JyZWN0IGJlaGF2aW91ci4g QW5kIHRoZXJlIGRvZXNuJ3Qgc2VlbSB0byBiZSBhbnl0aGluZyBlbHNlIHN1aXRhYmxlCj4gcmVh bGx5LgoKVGUgb2ZmZW5kaW5nIGFkZHJlc3MgaXMgcHJvdmlkZWQgd2l0aCB0aGUgc2lnbmFsIGFz IGZhciBhcyBJIGNhbiBzZWUuCgpJIHRoaW5rIGl0IGlzIGZpbmUgdG8gZG8gdGhpcywgZXZlbiBy ZXF1aXJlZCBzaW5jZSB0aGUgYWx0ZXJuYXRpdmUgaXMgCmZvciBHUFUgdG8ga2VlcCB1c2luZyBy YW5kb20gbWVtb3J5IGluZGVmaW5pdGVseSBhbmQgdXNlcnNwYWNlIG5ldmVyIApnZXRzIHRvIGtu b3cuCgpBbmQgSSBkb24ndCBzZWUgYW55IHJlYXNvbiB0byBrZWVwIHRoZSBwcm9jZXNzIHJ1bm5p bmcgd2hvIGRpZCBzdWNoIGFuIAplbGVtZW50YXJ5IGFuZCBzZXJpb3VzIG1pc3Rha2UuCgpJcyB0 aGUgb25seSBjb25jZXJuIHRoYXQgdGhlIHByb2Nlc3MgY2FuIGNhdGNoIGl0IGFuZCBub3QgZXhp dD8KCkkgYW0ganVzdCBub3Qgc3VyZSBhYm91dCB0aGUgbG9ja2luZyByZXF1aXJlbWVudCBmb3Ig Zm9yX2VhY2hfcHJvY2VzcyAKc2luY2UgZXhpc3RpbmcgY2FsbCBzaXRlcyBnaXZlIGNvbmZsaWN0 aW5nIGV4YW1wbGVzLiBJIGRvbid0IHNlZSBob3cgCnR1cm5pbmcgdGhlIHByZWVtcHRpb24gb2Zm IGNhbiBiZSBzYWZlIHdpdGhvdXQgdGhlIHRhc2tsaXN0IGxvY2sgYnV0IApwZXJoYXBzIEkgYW0g d3JvbmcsIGRvbid0IGtub3cuCgpSZWdhcmRzLAoKVHZydGtvCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwt Z2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==