Received: by 2002:ab2:b82:0:b0:1f3:401:3cfb with SMTP id 2csp21455lqh; Wed, 27 Mar 2024 13:29:30 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCXnzZqrNaI29bNm0MReNm0pY3tfaNZ52ZIoCUlzeRK/ejiYdA5/sv8yhEGeACkS5Mx2vWLjZqiMlpkEbaiLFNWe+69rItLQGm1uWKdibg== X-Google-Smtp-Source: AGHT+IESmK4m1CT9M5c72koOdMP3gHbcSg9kRq63gTL2CKhbHOCWrmdVqX6stIU44wcWtcLNlSLJ X-Received: by 2002:a17:902:c408:b0:1e0:b5f1:aac2 with SMTP id k8-20020a170902c40800b001e0b5f1aac2mr427726plk.10.1711571370365; Wed, 27 Mar 2024 13:29:30 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1711571370; cv=pass; d=google.com; s=arc-20160816; b=IP1LQbkE/p/UYyb8FzI+SwsybwAkE6An6hgYhhMyI45ly7zIbwzmXUNefDMfjQJ70h pNf5yNUEROul0E1qCrIfOLxRsK2uySMBAoW6nvpcmcbHI7znzs1AgszV26KJ2KvoIPO1 QlnSzGZTa1oHtEXYyp1X88wOzP1afk64Nal6EyCeRLc5LYTVE0L6rZp1NNsYOdfMhqFw +HLliAK/ttWrRaPukvhxNLx+NGfHzFd/sqthiVr+ryuQ5mmiJOAJgt7Yri2rXn6Cj5Mj RiXDc9XpPDvJqEBiEJH2hD0jLNmF0wdc9eO1OKimKz0nQ8R4IPU+y4+JalMiRRDVY3IH 4DYA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:in-reply-to:autocrypt:from:references:cc :to:content-language:subject:user-agent:mime-version :list-unsubscribe:list-subscribe:list-id:precedence:date:message-id :dkim-signature:dkim-signature:dkim-signature:dkim-signature; bh=1DwBX/Ioxr6p7/z032afJeSuUVlWTs0NlyebTRJsgxA=; fh=jt1HX9SKigoizzkHJbdqLVs54bD1VnXbJ6riZ6M5HfE=; b=hindDoItPlPUXbLS379YcM5KvG2rhq3w7yJU31yRKvEHgwIy0gdsyvk09c9vP1GnHF oAtE+i6scKEJ2vB4zcRC5jSfJBpZGKrnG+iBCvjx2JlRdpoblVbBw4eI428IYFO7kPhB 9ZiGXTvXfreZCGQ0fmG2TzlSBpPL1SauLD9PPNI2QPo79J2i/iPFhA/3t/CzvSa0EU3Q MgSG9ex+g1vMTf/V8+ni3KAfLeY5p1/02g23nYHSZsBXk9coyHkVaiJx0vOYfeFmTQQr qJ9o/+sycxDPRCpcokRq2OEjt1Q/UlppEb6EJro3vmlqcK/OYjvYsCPf7jdnKDDuXQPP xMkg==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=BxVBXQbc; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=BxVBXQbc; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; arc=pass (i=1 spf=pass spfdomain=suse.de dkim=pass dkdomain=suse.de dkim=pass dkdomain=suse.de dmarc=pass fromdomain=suse.de); spf=pass (google.com: domain of linux-kernel+bounces-121976-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-121976-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=suse.de Return-Path: Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id e12-20020a170902ef4c00b001e0d08fc3cbsi5791786plx.411.2024.03.27.13.29.30 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Mar 2024 13:29:30 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-121976-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=BxVBXQbc; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=BxVBXQbc; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; arc=pass (i=1 spf=pass spfdomain=suse.de dkim=pass dkdomain=suse.de dkim=pass dkdomain=suse.de dmarc=pass fromdomain=suse.de); spf=pass (google.com: domain of linux-kernel+bounces-121976-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-121976-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=suse.de Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 6A502297BA8 for ; Wed, 27 Mar 2024 20:28:37 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5E792152E11; Wed, 27 Mar 2024 20:28:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="BxVBXQbc"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="K97Ez81x"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="BxVBXQbc"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="K97Ez81x" Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 673B61514F7; Wed, 27 Mar 2024 20:28:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711571310; cv=none; b=nSLKaKiS31kAE9WAQOf3V7o563yuGwUJHRSPQd4Z0LPGkRNgUUQcW+ARl1jR3aFFfyO3PPQLptwybX6yv1z1BWqQFd6VFTGNM76BTd6W1qc8f43QxLFzz7jj0R4/r2AUGQ6z68jRFMxTjkgxtkASnECOGGx+Yvfc93lKu8DdG5w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711571310; c=relaxed/simple; bh=UpUOyzIoicAiSAUUbpqychIlGaoQK9rh/sgsGu0bpwA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=MiOWiKT+gO/TKnQtxFgC7pB5ykkITjJMxRSEiAmzga1TDDjLK6hRiu04V7vlaaKEbAgDjbtKbL4IGVeF1T4aGqYjFbwLDn1ENe7B6KsPlmv7a4wDBzDyepyudMC7KOIQFbJJJi3hgVG6lk0ZgQIw6AK6X7v1QSCEBcutTdyJdJs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=BxVBXQbc; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=K97Ez81x; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=BxVBXQbc; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=K97Ez81x; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [10.150.64.98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 84E0E1FB6E; Wed, 27 Mar 2024 20:28:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1711571306; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=1DwBX/Ioxr6p7/z032afJeSuUVlWTs0NlyebTRJsgxA=; b=BxVBXQbct7a8JRNQSwI/g+RzMMGE/Hsa9pxQCIa3PqR6bjb2cTAPI8BjbzO9wULFX/vC+Y a1VHQ5zpiTINQ72cBjokvsYvChcfv7QmXBfOmXgwIaOvmKltedxQFMksUCpZ9+omml1yBl LIJH/qTT9aVkY22rXXSI9RWMcopC9jw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1711571306; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=1DwBX/Ioxr6p7/z032afJeSuUVlWTs0NlyebTRJsgxA=; b=K97Ez81xCppZbLqRxrwLBwvnch6LSOtsfMff+bMu6C1koV6kWud5U7TypvFeB0ArIYB695 KWCEo2KafGRN9TCg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1711571306; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=1DwBX/Ioxr6p7/z032afJeSuUVlWTs0NlyebTRJsgxA=; b=BxVBXQbct7a8JRNQSwI/g+RzMMGE/Hsa9pxQCIa3PqR6bjb2cTAPI8BjbzO9wULFX/vC+Y a1VHQ5zpiTINQ72cBjokvsYvChcfv7QmXBfOmXgwIaOvmKltedxQFMksUCpZ9+omml1yBl LIJH/qTT9aVkY22rXXSI9RWMcopC9jw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1711571306; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=1DwBX/Ioxr6p7/z032afJeSuUVlWTs0NlyebTRJsgxA=; b=K97Ez81xCppZbLqRxrwLBwvnch6LSOtsfMff+bMu6C1koV6kWud5U7TypvFeB0ArIYB695 KWCEo2KafGRN9TCg== Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 125E013AB3; Wed, 27 Mar 2024 20:28:26 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap2.dmz-prg2.suse.org with ESMTPSA id hJVdAmqBBGZBEQAAn2gu4w (envelope-from ); Wed, 27 Mar 2024 20:28:26 +0000 Message-ID: <5df1d391-7683-4d9c-accc-9b446d46a150@suse.de> Date: Wed, 27 Mar 2024 21:28:25 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] drm/ast: Fix soft lockup Content-Language: en-US To: Jocelyn Falempe , Jammy Huang , maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@redhat.com, airlied@gmail.com, daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jammy Huang , stable@vger.kernel.org References: <20240325033515.814-1-jammy_huang@aspeedtech.com> From: Thomas Zimmermann Autocrypt: addr=tzimmermann@suse.de; keydata= xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdg XH47fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0 BeB5BbqP5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4Yc hdHm3bkPjz9EErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB 9GluwvIhSezPgnEmimZDkGnZRRSFiGP8yjqTjjWuf0bSj5rUnTGiyLyRZRNGcXmu6hjlABEB AAHNJ1Rob21hcyBaaW1tZXJtYW5uIDx0emltbWVybWFubkBzdXNlLmRlPsLAjgQTAQgAOAIb AwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftODH AAoJEGgNwR1TC3ojx1wH/0hKGWugiqDgLNXLRD/4TfHBEKmxIrmfu9Z5t7vwUKfwhFL6hqvo lXPJJKQpQ2z8+X2vZm/slsLn7J1yjrOsoJhKABDi+3QWWSGkaGwRJAdPVVyJMfJRNNNIKwVb U6B1BkX2XDKDGffF4TxlOpSQzdtNI/9gleOoUA8+jy8knnDYzjBNOZqLG2FuTdicBXblz0Mf vg41gd9kCwYXDnD91rJU8tzylXv03E75NCaTxTM+FBXPmsAVYQ4GYhhgFt8S2UWMoaaABLDe 7l5FdnLdDEcbmd8uLU2CaG4W2cLrUaI4jz2XbkcPQkqTQ3EB67hYkjiEE6Zy3ggOitiQGcqp j//OwE0EWznS4AEIAMYmP4M/V+T5RY5at/g7rUdNsLhWv1APYrh9RQefODYHrNRHUE9eosYb T6XMryR9hT8XlGOYRwKWwiQBoWSDiTMo/Xi29jUnn4BXfI2px2DTXwc22LKtLAgTRjP+qbU6 3Y0xnQN29UGDbYgyyK51DW3H0If2a3JNsheAAK+Xc9baj0LGIc8T9uiEWHBnCH+RdhgATnWW GKdDegUR5BkDfDg5O/FISymJBHx2Dyoklv5g4BzkgqTqwmaYzsl8UxZKvbaxq0zbehDda8lv hFXodNFMAgTLJlLuDYOGLK2AwbrS3Sp0AEbkpdJBb44qVlGm5bApZouHeJ/+n+7r12+lqdsA EQEAAcLAdgQYAQgAIAIbDBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftOH6AAoJEGgNwR1T C3ojVSkIALpAPkIJPQoURPb1VWjh34l0HlglmYHvZszJWTXYwavHR8+k6Baa6H7ufXNQtThR yIxJrQLW6rV5lm7TjhffEhxVCn37+cg0zZ3j7zIsSS0rx/aMwi6VhFJA5hfn3T0TtrijKP4A SAQO9xD1Zk9/61JWk8OysuIh7MXkl0fxbRKWE93XeQBhIJHQfnc+YBLprdnxR446Sh8Wn/2D Ya8cavuWf2zrB6cZurs048xe0UbSW5AOSo4V9M0jzYI4nZqTmPxYyXbm30Kvmz0rYVRaitYJ 4kyYYMhuULvrJDMjZRvaNe52tkKAvMevcGdt38H4KSVXAylqyQOW5zvPc4/sq9c= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -0.40 X-Spamd-Result: default: False [-0.40 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; XM_UA_NO_VERSION(0.01)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-0.998]; BAYES_HAM(-0.61)[81.97%]; RCPT_COUNT_SEVEN(0.00)[11]; FREEMAIL_TO(0.00)[redhat.com,gmail.com,linux.intel.com,kernel.org,ffwll.ch]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; SUSPICIOUS_RECIPS(1.50)[] X-Spam-Level: Authentication-Results: smtp-out2.suse.de; none X-Spam-Flag: NO Hi Am 27.03.24 um 09:53 schrieb Jocelyn Falempe: > Hi, > > Thanks for your patch. > I'm wondering how you can trigger this infinite loop ? Yeah, a bit more context for this bug would be welcome. It's hard to judge the fix without. Best regards Thomas > > Also this looks like a simple fix, that can be easily backported, so > I'm adding stable in Cc. > > If Thomas has no objections, I can push it to drm-misc-fixes. > > Reviewed-by: Jocelyn Falempe > -- -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstrasse 146, 90461 Nuernberg, Germany GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman HRB 36809 (AG Nuernberg)