From patchwork Tue Jul 11 21:34:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Almeida?= X-Patchwork-Id: 13309397 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 BB3EDC001DE for ; Tue, 11 Jul 2023 21:35:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3B5DD10E439; Tue, 11 Jul 2023 21:35:57 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 34CD810E438; Tue, 11 Jul 2023 21:35:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=WH7Cm3VveDbv6D+GxRpXLNfTbvl+zR6aYn4to7mM5e0=; b=o6ZCvMVtkCfTreopWJ0LzaVhuw BpyVOSfP1bMdVfWrbafOBb2fOdFbsHfTlv+klJvaVKoNt6j3iQ/0q/U8Og+M9LC5pEtMURUGNXGS5 fci8b6lrQ20/F99S8foYZPyG7KGKd97Vm2vwFlvIS9P3x7TmIqXSz5qApGZSfoSxF/ybGn1g27XgN /GgLePM+/Pov1YFOnw5OzewKz2tl6pvAUqSs2SslC5GucnwcfaPCBXtBqXd+PSDBYKQH/tNr2AbsH ACHoxrtQT1Ejq5c4nTQIJ5w2Jx86RrCBUSKlWkC90wYL/0RBPnxrGi5l0G9RqT32rEBh1acgWAyQi SIpq0c1g==; Received: from [187.74.70.209] (helo=steammachine.lan) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qJL1U-00Cl0M-Ph; Tue, 11 Jul 2023 23:35:53 +0200 From: =?utf-8?q?Andr=C3=A9_Almeida?= To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/6] drm/amdgpu: Limit info in coredump for kernel threads Date: Tue, 11 Jul 2023 18:34:59 -0300 Message-ID: <20230711213501.526237-5-andrealmeid@igalia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230711213501.526237-1-andrealmeid@igalia.com> References: <20230711213501.526237-1-andrealmeid@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pierre-eric.pelloux-prayer@amd.com, =?utf-8?q?Andr=C3=A9_Almeida?= , =?utf-8?b?J01hcmVr?= =?utf-8?b?IE9sxaHDoWsn?= , =?utf-8?q?Timur_Krist=C3=B3f?= , michel.daenzer@mailbox.org, Samuel Pitoiset , kernel-dev@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" If a kernel thread caused the reset, the information available to be logged will be limited, so return early in the dump function. Signed-off-by: André Almeida --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 23b9784e9787..7449aead1e13 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4988,10 +4988,14 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, drm_printf(&p, "kernel: " UTS_RELEASE "\n"); drm_printf(&p, "module: " KBUILD_MODNAME "\n"); drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec); - if (coredump->reset_task_info.pid) + if (coredump->reset_task_info.pid) { drm_printf(&p, "process_name: %s PID: %d\n", coredump->reset_task_info.process_name, coredump->reset_task_info.pid); + } else { + drm_printf(&p, "GPU reset caused by a kernel thread\n"); + return count - iter.remain; + } if (coredump->reset_vram_lost) drm_printf(&p, "VRAM is lost due to GPU reset!\n");