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Tue, 23 May 2023 16:32:52 +0000 (GMT) Message-ID: <6040ad05-2894-6302-20db-0b0ff3fb0f0c@samsung.com> Date: Tue, 23 May 2023 18:32:52 +0200 Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.1 Subject: Re: [PATCH v2] media: verisilicon: Fix crash when probing encoder Content-Language: en-US To: Michael Tretter , Linux regressions mailing list , Diederik de Haas , Ezequiel Garcia , Nicolas Dufresne , Benjamin Gaignard , p.zabel@pengutronix.de, mchehab@kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, hverkuil-cisco@xs4all.nl, Pengutronix Kernel Team From: Marek Szyprowski In-Reply-To: <20230523145430.GB9943@pengutronix.de> Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrCKsWRmVeSWpSXmKPExsWy7djP87pbX+WkGNz6qmmx5cpsZovWV8/Z LTa++MxicXHmXRaLzed6WC1WTd3JYnF51xw2i54NW1ktPj34z2yxbcU5Votlm/4wWez6co/N 4u69EywWG992sDvweZz4f4TFY8fdJYwem1Z1snlsXlLv8WLzTEaP/r8GHl1HrrN5fN4k53Hq 62f2AM4oLpuU1JzMstQifbsEroyXmw4wFRwXrZh0lL+BcYtgFyMnh4SAicTXR4uYuhi5OIQE VjBKrDnZB+V8YZRovf2MHcL5zCjxv6ObBaal5fccZojEckaJv7vns0I4Hxkl/qycD1bFK2An sW7XV0YQm0VAVWLN/T9MEHFBiZMzn4DViAqkSqzafJEZxBYW8JJYNm0LO4jNLCAucevJfLA7 RARWs0hM3HkErIFNwFCi620XG4jNKWAsMefeZSaIBnmJ5q2zwU6SEJjPKXFywj1miFtdJKbu WswKYQtLvDoOsUFCQEbi9OQeFoiGdkaJBb/vM0E4ExglGp7fYoSospa4c+4X0DoOoBWaEut3 6UOEHSXuP5nIDhKWEOCTuPFWEOIIPolJ26YzQ4R5JTrahCCq1SRmHV8Ht/bghUtQp3lIbL79 mHkCo+IspHCZheT/WUhem4VwwwJGllWM4qmlxbnpqcWGeanlesWJucWleel6yfm5mxiBCe/0 v+OfdjDOffVR7xAjEwfjIUYJDmYlEd4T5dkpQrwpiZVVqUX58UWlOanFhxilOViUxHm1bU8m CwmkJ5akZqemFqQWwWSZODilGpga9vyR+LpMIvDOO8ZDcpGuFWzPEzeWSjAs7HW2UPtt7Wo3 KfHJthtfpn1L5HcWPGvG/VnhSNbFc/Hv0uUK7bgFjr2YoVBYaM6dfjQ46GTPom2hk29NXlDt fHbH/4vxJVq+1myOVfwM/zc8MXowU6kuM3Vefc2DCcunB3U73jWTa/BUs5BeobHS8qn+E5Y4 u8Wxe4t38hZs4dnRcdVB2MIh4EBI1Kv0O6z1fL84bNYWt9eLRLZUGC969JuXXeWRycOP+3w6 a8KFe8/0/P/oee+SxovS1axTWKLlV746aeP82pk74UOff9OpLxMeHZhzemK2n/SmVUc4d2// 8vxDy/cz31U3vDXVvnHj17T+y4eUWIozEg21mIuKEwHKujr25wMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrFIsWRmVeSWpSXmKPExsVy+t/xu7pbX+WkGKw4zmax5cpsZovWV8/Z LTa++MxicXHmXRaLzed6WC1WTd3JYnF51xw2i54NW1ktPj34z2yxbcU5Votlm/4wWez6co/N 4u69EywWG992sDvweZz4f4TFY8fdJYwem1Z1snlsXlLv8WLzTEaP/r8GHl1HrrN5fN4k53Hq 62f2AM4oPZui/NKSVIWM/OISW6VoQwsjPUNLCz0jE0s9Q2PzWCsjUyV9O5uU1JzMstQifbsE vYyXmw4wFRwXrZh0lL+BcYtgFyMnh4SAiUTL7znMXYxcHEICSxklFn9bzQiRkJE4Oa2BFcIW lvhzrYsNoug9o8TG+UvYQRK8AnYS63Z9BWtgEVCVWHP/DxNEXFDi5MwnLCC2qECqxMmlN8Bs YQEviWXTtoD1MguIS9x6Mp8JZKiIwFoWibvX1rBDbHjLJNG6ZC1YB5uAoUTXW5DVnBycAsYS c+5dZoLoNpPo2trFCGHLSzRvnc08gVFwFpLls5AsmYWkZRaSlgWMLKsYRVJLi3PTc4sN9YoT c4tL89L1kvNzNzECI3nbsZ+bdzDOe/VR7xAjEwfjIUYJDmYlEd4T5dkpQrwpiZVVqUX58UWl OanFhxhNgSEwkVlKNDkfmErySuINzQxMDU3MLA1MLc2MlcR5PQs6EoUE0hNLUrNTUwtSi2D6 mDg4pRqYEnbHcEhu/x59/Yz9N/Ge1L7kLYtudqc/uMszSyojK0eKk3dfJK9X0tpJ8w7Eddoe 1N284ud8wdPPeaaZpjB/nm/3L6PAMETt+nGD01Xu9y4IOa7kmNoRMHdbE++K7JepQR73TkS+ usF3pGE+99LiuWueRmxqmFS40cyOreLbtxUzGHr1LtvlBrjwrFEWjlp9aVn6N7PbRyYur12Z 9q6myLZpd9jS3o2GX5y5zvzSdJo680LNQesw71T1H2kMcWdux7dbME5aeSRKfudDBW7O3tOs Rw5MTr+943Z5+5Pq0vPq8uKm87f+Mvy0+/fSY5tq5pw9u3mV+aFvvmpPOQo5PyjyL68y3jpZ UbO9qrOLTYmlOCPRUIu5qDgRAPks+idtAwAA X-CMS-MailID: 20230523163253eucas1p1b0d2f9d80f322d73ab8e41f9e47e4ac8 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20230523145444eucas1p2fd56ca86c1c68abc89deec532a3588fb X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230523145444eucas1p2fd56ca86c1c68abc89deec532a3588fb References: <20230413104756.356695-1-benjamin.gaignard@collabora.com> <4995215.LvFx2qVVIh@bagend> <7c1bf9c4-f14b-30cd-2610-871f5f512d06@collabora.com> <12724349.O9o76ZdvQC@bagend> <5d871928-dcd5-3f27-e975-d1639525dad0@leemhuis.info> <20230523145430.GB9943@pengutronix.de> On 23.05.2023 16:54, Michael Tretter wrote: > On Tue, 23 May 2023 12:50:42 +0200, Linux regression tracking (Thorsten Leemhuis) wrote: >> CCing the Regression list and a bunch of other people that were CCed in >> threads that look related: > Thanks! > >> On 23.05.23 00:38, Diederik de Haas wrote: >>> On Monday, 22 May 2023 18:17:39 CEST Benjamin Gaignard wrote: >>>> Le 20/05/2023 à 00:34, Diederik de Haas a écrit : >>>>> On Thursday, 13 April 2023 21:52:50 CEST Nicolas Dufresne wrote: >>> [...] >>>>> When I booted into my 6.4-rc1 (but also rc2) kernel on my >>>>> Pine64 Quartz64 Model A, I noticed a crash which seems the same as >>>>> above, but I didn't have such a crash with my 6.3 kernel. >>>>> Searching for 'hantro' led me to this commit as the most likely culprit >>>>> but when I build a new 6.4-rcX kernel with this commit reverted, >>>>> I still had this crash. >>>>> Do you have suggestions which commit would then be the likely culprit? >>>> This patch fix the crash at boot time, revert it doesn't seem to be the >>>> solution. Maybe this proposal from Marek can help you ? >>>> >>>> https://patchwork.kernel.org/project/linux-media/patch/20230421104759.2236463-1-m.szyprowski@samsung.com/ >>> That helped :) After applying that patch I no longer have the crash. >>> Thanks! >> That regression fix is now a month old, but not yet merged afaics -- >> guess due to Nicolas comment that wasn't addressed yet and likely >> requires a updated patch. > I agree with Nicolas comment on that patch and it needs to be updated. > >> Michael afaics a week ago posted a patch that to my *very limited >> understanding of things* (I hope I don't confuse matters here!) seems to >> address the same problem, but slightly differently: >> https://lore.kernel.org/all/20230516091209.3098262-1-m.tretter@pengutronix.de/ > Correct, my patch addresses the same problem. > >> No reply yet. >> >> That's all a bit unfortunate, as it's not how regression fixes should be >> dealt with -- and caused multiple people headaches that could have been >> avoided. :-/ >> >> But well, things happen. But it leads to the question: >> >> How can we finally address the issue quickly now to ensure is doesn't >> cause headaches for even more people? >> >> Marek, Michael, could you work on a patch together that we then get >> somewhat fast-tracked to Linus to avoid him getting even more unhappy >> about the state of things[1]? > Marek, if you have an updated patch, I will happily test and review it. > Otherwise, please take a look at my patch. Go ahead with your, my was just a blind try eliminating the oops during driver probe. Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 843BAC77B75 for ; Tue, 23 May 2023 17:35:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To:From:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vmdz1NDGPKIGGFribXkrbomFTSoLuOMusW89YJ1AwSc=; b=YV/3keIK5UUdxE KZ52Yg2js0h1NrghXkaUfcKTWp5GaWuoAPdiPg20PBpOH8WhXwpkW5Fm+qgkAfz3I6YHeSZeoWehF 8Qk4HTbFeYIZqeyN7XM9JErd1fhiBaSpjfJKz4PdU+kMYidlnmu2ErFUbCQI547MBr86kzKRm+mXx RfumU2KABPRTy1QkpPigoT2RJ1L/V/+4NkstVd15aHU3Mk96BU3kBTGVdV9FxjQFscMbmbaVu/9Aa qg56QVfqxWhXMa2L4AS4OGVIh9CskWyhqcsALxkmrGuIbckkg536xKXlrSppoENPScraewVUbZH3B UVY5Ns7Mv5be/kWnU9Qg==; 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Tue, 23 May 2023 16:32:52 +0000 (GMT) Message-ID: <6040ad05-2894-6302-20db-0b0ff3fb0f0c@samsung.com> Date: Tue, 23 May 2023 18:32:52 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.1 Subject: Re: [PATCH v2] media: verisilicon: Fix crash when probing encoder Content-Language: en-US To: Michael Tretter , Linux regressions mailing list , Diederik de Haas , Ezequiel Garcia , Nicolas Dufresne , Benjamin Gaignard , p.zabel@pengutronix.de, mchehab@kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, hverkuil-cisco@xs4all.nl, Pengutronix Kernel Team From: Marek Szyprowski In-Reply-To: <20230523145430.GB9943@pengutronix.de> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrCKsWRmVeSWpSXmKPExsWy7djP87pbX+WkGNz6qmmx5cpsZovWV8/Z LTa++MxicXHmXRaLzed6WC1WTd3JYnF51xw2i54NW1ktPj34z2yxbcU5Votlm/4wWez6co/N 4u69EywWG992sDvweZz4f4TFY8fdJYwem1Z1snlsXlLv8WLzTEaP/r8GHl1HrrN5fN4k53Hq 62f2AM4oLpuU1JzMstQifbsEroyXmw4wFRwXrZh0lL+BcYtgFyMnh4SAicTXR4uYuhi5OIQE VjBKrDnZB+V8YZRovf2MHcL5zCjxv6ObBaal5fccZojEckaJv7vns0I4Hxkl/qycD1bFK2An sW7XV0YQm0VAVWLN/T9MEHFBiZMzn4DViAqkSqzafJEZxBYW8JJYNm0LO4jNLCAucevJfLA7 RARWs0hM3HkErIFNwFCi620XG4jNKWAsMefeZSaIBnmJ5q2zwU6SEJjPKXFywj1miFtdJKbu WswKYQtLvDoOsUFCQEbi9OQeFoiGdkaJBb/vM0E4ExglGp7fYoSospa4c+4X0DoOoBWaEut3 6UOEHSXuP5nIDhKWEOCTuPFWEOIIPolJ26YzQ4R5JTrahCCq1SRmHV8Ht/bghUtQp3lIbL79 mHkCo+IspHCZheT/WUhem4VwwwJGllWM4qmlxbnpqcWGeanlesWJucWleel6yfm5mxiBCe/0 v+OfdjDOffVR7xAjEwfjIUYJDmYlEd4T5dkpQrwpiZVVqUX58UWlOanFhxilOViUxHm1bU8m CwmkJ5akZqemFqQWwWSZODilGpga9vyR+LpMIvDOO8ZDcpGuFWzPEzeWSjAs7HW2UPtt7Wo3 KfHJthtfpn1L5HcWPGvG/VnhSNbFc/Hv0uUK7bgFjr2YoVBYaM6dfjQ46GTPom2hk29NXlDt fHbH/4vxJVq+1myOVfwM/zc8MXowU6kuM3Vefc2DCcunB3U73jWTa/BUs5BeobHS8qn+E5Y4 u8Wxe4t38hZs4dnRcdVB2MIh4EBI1Kv0O6z1fL84bNYWt9eLRLZUGC969JuXXeWRycOP+3w6 a8KFe8/0/P/oee+SxovS1axTWKLlV746aeP82pk74UOff9OpLxMeHZhzemK2n/SmVUc4d2// 8vxDy/cz31U3vDXVvnHj17T+y4eUWIozEg21mIuKEwHKujr25wMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrFIsWRmVeSWpSXmKPExsVy+t/xu7pbX+WkGKw4zmax5cpsZovWV8/Z LTa++MxicXHmXRaLzed6WC1WTd3JYnF51xw2i54NW1ktPj34z2yxbcU5Votlm/4wWez6co/N 4u69EywWG992sDvweZz4f4TFY8fdJYwem1Z1snlsXlLv8WLzTEaP/r8GHl1HrrN5fN4k53Hq 62f2AM4oPZui/NKSVIWM/OISW6VoQwsjPUNLCz0jE0s9Q2PzWCsjUyV9O5uU1JzMstQifbsE vYyXmw4wFRwXrZh0lL+BcYtgFyMnh4SAiUTL7znMXYxcHEICSxklFn9bzQiRkJE4Oa2BFcIW lvhzrYsNoug9o8TG+UvYQRK8AnYS63Z9BWtgEVCVWHP/DxNEXFDi5MwnLCC2qECqxMmlN8Bs YQEviWXTtoD1MguIS9x6Mp8JZKiIwFoWibvX1rBDbHjLJNG6ZC1YB5uAoUTXW5DVnBycAsYS c+5dZoLoNpPo2trFCGHLSzRvnc08gVFwFpLls5AsmYWkZRaSlgWMLKsYRVJLi3PTc4sN9YoT c4tL89L1kvNzNzECI3nbsZ+bdzDOe/VR7xAjEwfjIUYJDmYlEd4T5dkpQrwpiZVVqUX58UWl OanFhxhNgSEwkVlKNDkfmErySuINzQxMDU3MLA1MLc2MlcR5PQs6EoUE0hNLUrNTUwtSi2D6 mDg4pRqYEnbHcEhu/x59/Yz9N/Ge1L7kLYtudqc/uMszSyojK0eKk3dfJK9X0tpJ8w7Eddoe 1N284ud8wdPPeaaZpjB/nm/3L6PAMETt+nGD01Xu9y4IOa7kmNoRMHdbE++K7JepQR73TkS+ usF3pGE+99LiuWueRmxqmFS40cyOreLbtxUzGHr1LtvlBrjwrFEWjlp9aVn6N7PbRyYur12Z 9q6myLZpd9jS3o2GX5y5zvzSdJo680LNQesw71T1H2kMcWdux7dbME5aeSRKfudDBW7O3tOs Rw5MTr+943Z5+5Pq0vPq8uKm87f+Mvy0+/fSY5tq5pw9u3mV+aFvvmpPOQo5PyjyL68y3jpZ UbO9qrOLTYmlOCPRUIu5qDgRAPks+idtAwAA X-CMS-MailID: 20230523163253eucas1p1b0d2f9d80f322d73ab8e41f9e47e4ac8 X-Msg-Generator: CA X-RootMTR: 20230523145444eucas1p2fd56ca86c1c68abc89deec532a3588fb X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230523145444eucas1p2fd56ca86c1c68abc89deec532a3588fb References: <20230413104756.356695-1-benjamin.gaignard@collabora.com> <4995215.LvFx2qVVIh@bagend> <7c1bf9c4-f14b-30cd-2610-871f5f512d06@collabora.com> <12724349.O9o76ZdvQC@bagend> <5d871928-dcd5-3f27-e975-d1639525dad0@leemhuis.info> <20230523145430.GB9943@pengutronix.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230523_173303_314540_FB1ACD02 X-CRM114-Status: GOOD ( 19.10 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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