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=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 29EE3C32792 for ; Thu, 3 Oct 2019 08:34:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F2709222CD for ; Thu, 3 Oct 2019 08:34:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="zTchbkJb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727995AbfJCIeZ (ORCPT ); Thu, 3 Oct 2019 04:34:25 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:51932 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727357AbfJCIeY (ORCPT ); Thu, 3 Oct 2019 04:34:24 -0400 Received: by mail-wm1-f66.google.com with SMTP id 7so1549206wme.1 for ; Thu, 03 Oct 2019 01:34:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=pI9C6ahl+nbQHPAC35dp9wq8rqxSsDDWofoWIyRDkLM=; b=zTchbkJbgDTpNLzYwpdrWTE/gd+vuOPqap7nsSbbZ7+8Ec77H1VBaUDGtFpxoA8Wsy rO2dvutBNGUKTXyH+TJSnv6zLMGC8UBJjbZ/DzCH3ko9E+3EEUAZNvxBnKTjImTxKGHg dFid8JAY3zOjgb0NKCgxcHpbwJXFBuGJR2nOeNlybSaS3hFq9eIa1e8Diqpp1nosCmjz GNr1KuzN7K3FCz0nMCInp5KFNv0xH8+1uC1g3VYS9Qm449WqeUoPFBSFasSQLUn/U4eM tBhXWmFRC05WZo/hqCw1XiR8CdQT8uhC6ekLnd1hwADf8pIesbTUpa81F+D60JXHYCOC xmzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=pI9C6ahl+nbQHPAC35dp9wq8rqxSsDDWofoWIyRDkLM=; b=f3Ds7R5jXpEGkiCEGVNCfpz6U8umvLOlIbYnZOfAPinEnbzlnFeuV1f0EdBmZG7iCw 80WV3ji4AjttzHwzyKY0sR/0Rd/ZyzL8r4ROAKEWqrND0SsnhdCD2lqqxL3LSPfTu25y BCSFNClzJ5ksXb39voqKDQnPJ61dWKbLEwstCrk5hOoze4lpTuqvhs1Q/dtpQT+86kBe gZ+0KAaI5PRm5lMWrtnIblRsDHBeDAuEkfm5n8ziOVZ4zRwBDr3wnb1GybQJg3TaFawn oAQYEf2/WKBUXlICu62J9JwWbOdDQFr82Uq20Idk0iDh0ydGUUbVVx+6nevx3kny8733 MprQ== X-Gm-Message-State: APjAAAVlfb0pWu0KHCTpX1MdbYwyf0gSG9cRdzLG9vS0i7gKK4Itt8Np s1+kzHdSV0vIBBX3UkonoSyzBg== X-Google-Smtp-Source: APXvYqw4bv6iyI1N5Z9utskDI3+DaWWDjbAcHP6jbcMIYZDH9RbG+kUfYFbm+NrAdKLO8R+/Yht+8Q== X-Received: by 2002:a7b:cb91:: with SMTP id m17mr6042506wmi.151.1570091661782; Thu, 03 Oct 2019 01:34:21 -0700 (PDT) Received: from [192.168.1.77] (176-150-251-154.abo.bbox.fr. [176.150.251.154]) by smtp.gmail.com with ESMTPSA id x129sm2591475wmg.8.2019.10.03.01.34.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 03 Oct 2019 01:34:20 -0700 (PDT) Subject: Re: drm_sched with panfrost crash on T820 To: "Grodzovsky, Andrey" , Hillf Danton References: <20190930145228.14000-1-hdanton@sina.com> Cc: "daniel@ffwll.ch" , "airlied@linux.ie" , "Koenig, Christian" , Erico Nunes , "linux-kernel@vger.kernel.org" , "steven.price@arm.com" , "dri-devel@lists.freedesktop.org" , Rob Herring , Tomeu Vizoso , "open list:ARM/Amlogic Meson..." From: Neil Armstrong Message-ID: <7339b7a1-2d1c-4379-89a0-daf8b28d81c8@baylibre.com> Date: Thu, 3 Oct 2019 10:34:19 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrey, Le 02/10/2019 à 16:40, Grodzovsky, Andrey a écrit : > > On 9/30/19 10:52 AM, Hillf Danton wrote: >> On Mon, 30 Sep 2019 11:17:45 +0200 Neil Armstrong wrote: >>> Did a new run from 5.3: >>> >>> [ 35.971972] Call trace: >>> [ 35.974391] drm_sched_increase_karma+0x5c/0xf0 >>> ffff000010667f38 FFFF000010667F94 >>> drivers/gpu/drm/scheduler/sched_main.c:335 >>> >>> The crashing line is : >>> if (bad->s_fence->scheduled.context == >>> entity->fence_context) { >>> >>> Doesn't seem related to guilty job. >> Bail out if s_fence is no longer fresh. >> >> --- a/drivers/gpu/drm/scheduler/sched_main.c >> +++ b/drivers/gpu/drm/scheduler/sched_main.c >> @@ -333,6 +333,10 @@ void drm_sched_increase_karma(struct drm >> >> spin_lock(&rq->lock); >> list_for_each_entry_safe(entity, tmp, &rq->entities, list) { >> + if (!smp_load_acquire(&bad->s_fence)) { >> + spin_unlock(&rq->lock); >> + return; >> + } >> if (bad->s_fence->scheduled.context == >> entity->fence_context) { >> if (atomic_read(&bad->karma) > >> @@ -543,7 +547,7 @@ EXPORT_SYMBOL(drm_sched_job_init); >> void drm_sched_job_cleanup(struct drm_sched_job *job) >> { >> dma_fence_put(&job->s_fence->finished); >> - job->s_fence = NULL; >> + smp_store_release(&job->s_fence, 0); >> } >> EXPORT_SYMBOL(drm_sched_job_cleanup); > This fixed the problem on the 10 CI runs. Neil > > Does this change help the problem ? Note that drm_sched_job_cleanup is > called from scheduler thread which is stopped at all times when work_tdr > thread is running and anyway the 'bad' job is still in the > ring_mirror_list while it's being accessed from > drm_sched_increase_karma so I don't think drm_sched_job_cleanup can be > called for it BEFORE or while drm_sched_increase_karma is executed. > > Andrey > > >> >> -- >> From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Armstrong Subject: Re: drm_sched with panfrost crash on T820 Date: Thu, 3 Oct 2019 10:34:19 +0200 Message-ID: <7339b7a1-2d1c-4379-89a0-daf8b28d81c8@baylibre.com> References: <20190930145228.14000-1-hdanton@sina.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7066F6E975 for ; Thu, 3 Oct 2019 08:34:23 +0000 (UTC) Received: by mail-wm1-x342.google.com with SMTP id r19so1548592wmh.2 for ; 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[176.150.251.154]) by smtp.gmail.com with ESMTPSA id x129sm2591475wmg.8.2019.10.03.01.34.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 03 Oct 2019 01:34:20 -0700 (PDT) Subject: Re: drm_sched with panfrost crash on T820 To: "Grodzovsky, Andrey" , Hillf Danton References: <20190930145228.14000-1-hdanton@sina.com> From: Neil Armstrong Message-ID: <7339b7a1-2d1c-4379-89a0-daf8b28d81c8@baylibre.com> Date: Thu, 3 Oct 2019 10:34:19 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191003_013424_033576_1132CC1D X-CRM114-Status: GOOD ( 16.04 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , Tomeu Vizoso , "airlied@linux.ie" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "steven.price@arm.com" , "daniel@ffwll.ch" , "open list:ARM/Amlogic Meson..." , "Koenig, Christian" , Erico Nunes Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org SGkgQW5kcmV5LAoKTGUgMDIvMTAvMjAxOSDDoCAxNjo0MCwgR3JvZHpvdnNreSwgQW5kcmV5IGEg w6ljcml0IDoKPiAKPiBPbiA5LzMwLzE5IDEwOjUyIEFNLCBIaWxsZiBEYW50b24gd3JvdGU6Cj4+ IE9uIE1vbiwgMzAgU2VwIDIwMTkgMTE6MTc6NDUgKzAyMDAgTmVpbCBBcm1zdHJvbmcgd3JvdGU6 Cj4+PiBEaWQgYSBuZXcgcnVuIGZyb20gNS4zOgo+Pj4KPj4+IFsgICAzNS45NzE5NzJdIENhbGwg dHJhY2U6Cj4+PiBbICAgMzUuOTc0MzkxXSAgZHJtX3NjaGVkX2luY3JlYXNlX2thcm1hKzB4NWMv MHhmMAo+Pj4gCQkJZmZmZjAwMDAxMDY2N2YzOAlGRkZGMDAwMDEwNjY3Rjk0Cj4+PiAJCQlkcml2 ZXJzL2dwdS9kcm0vc2NoZWR1bGVyL3NjaGVkX21haW4uYzozMzUKPj4+Cj4+PiBUaGUgY3Jhc2hp bmcgbGluZSBpcyA6Cj4+PiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBpZiAoYmFk LT5zX2ZlbmNlLT5zY2hlZHVsZWQuY29udGV4dCA9PQo+Pj4gICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIGVudGl0eS0+ZmVuY2VfY29udGV4dCkgewo+Pj4KPj4+IERvZXNuJ3Qg c2VlbSByZWxhdGVkIHRvIGd1aWx0eSBqb2IuCj4+IEJhaWwgb3V0IGlmIHNfZmVuY2UgaXMgbm8g bG9uZ2VyIGZyZXNoLgo+Pgo+PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vc2NoZWR1bGVyL3NjaGVk X21haW4uYwo+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vc2NoZWR1bGVyL3NjaGVkX21haW4uYwo+ PiBAQCAtMzMzLDYgKzMzMywxMCBAQCB2b2lkIGRybV9zY2hlZF9pbmNyZWFzZV9rYXJtYShzdHJ1 Y3QgZHJtCj4+ICAgCj4+ICAgCQkJc3Bpbl9sb2NrKCZycS0+bG9jayk7Cj4+ICAgCQkJbGlzdF9m b3JfZWFjaF9lbnRyeV9zYWZlKGVudGl0eSwgdG1wLCAmcnEtPmVudGl0aWVzLCBsaXN0KSB7Cj4+ ICsJCQkJaWYgKCFzbXBfbG9hZF9hY3F1aXJlKCZiYWQtPnNfZmVuY2UpKSB7Cj4+ICsJCQkJCXNw aW5fdW5sb2NrKCZycS0+bG9jayk7Cj4+ICsJCQkJCXJldHVybjsKPj4gKwkJCQl9Cj4+ICAgCQkJ CWlmIChiYWQtPnNfZmVuY2UtPnNjaGVkdWxlZC5jb250ZXh0ID09Cj4+ICAgCQkJCSAgICBlbnRp dHktPmZlbmNlX2NvbnRleHQpIHsKPj4gICAJCQkJCWlmIChhdG9taWNfcmVhZCgmYmFkLT5rYXJt YSkgPgo+PiBAQCAtNTQzLDcgKzU0Nyw3IEBAIEVYUE9SVF9TWU1CT0woZHJtX3NjaGVkX2pvYl9p bml0KTsKPj4gICB2b2lkIGRybV9zY2hlZF9qb2JfY2xlYW51cChzdHJ1Y3QgZHJtX3NjaGVkX2pv YiAqam9iKQo+PiAgIHsKPj4gICAJZG1hX2ZlbmNlX3B1dCgmam9iLT5zX2ZlbmNlLT5maW5pc2hl ZCk7Cj4+IC0Jam9iLT5zX2ZlbmNlID0gTlVMTDsKPj4gKwlzbXBfc3RvcmVfcmVsZWFzZSgmam9i LT5zX2ZlbmNlLCAwKTsKPj4gICB9Cj4+ICAgRVhQT1JUX1NZTUJPTChkcm1fc2NoZWRfam9iX2Ns ZWFudXApOwo+IAoKVGhpcyBmaXhlZCB0aGUgcHJvYmxlbSBvbiB0aGUgMTAgQ0kgcnVucy4KCk5l aWwKCj4gCj4gRG9lcyB0aGlzIGNoYW5nZSBoZWxwIHRoZSBwcm9ibGVtID8gTm90ZSB0aGF0IGRy bV9zY2hlZF9qb2JfY2xlYW51cCBpcyAKPiBjYWxsZWQgZnJvbSBzY2hlZHVsZXIgdGhyZWFkIHdo aWNoIGlzIHN0b3BwZWQgYXQgYWxsIHRpbWVzIHdoZW4gd29ya190ZHIgCj4gdGhyZWFkIGlzIHJ1 bm5pbmcgYW5kIGFueXdheSB0aGUgJ2JhZCcgam9iIGlzIHN0aWxsIGluIHRoZSAKPiByaW5nX21p cnJvcl9saXN0IHdoaWxlIGl0J3MgYmVpbmcgYWNjZXNzZWQgZnJvbSAgCj4gZHJtX3NjaGVkX2lu Y3JlYXNlX2thcm1hIHNvIEkgZG9uJ3QgdGhpbmsgZHJtX3NjaGVkX2pvYl9jbGVhbnVwIGNhbiBi ZSAKPiBjYWxsZWQgZm9yIGl0IEJFRk9SRSBvciB3aGlsZSBkcm1fc2NoZWRfaW5jcmVhc2Vfa2Fy bWEgaXMgZXhlY3V0ZWQuCj4gCj4gQW5kcmV5Cj4gCj4gCj4+ICAgCj4+IC0tCj4+CgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hbWxvZ2ljIG1h aWxpbmcgbGlzdApsaW51eC1hbWxvZ2ljQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3Rz LmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hbWxvZ2ljCg==