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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id gs16-20020a1709072d1000b00a3f20ba01c9si262080ejc.1034.2024.02.20.11.01.09 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Feb 2024 11:01:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-73561-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=korg header.b=MyQpiTk6; arc=pass (i=1 dkim=pass dkdomain=linux-foundation.org); spf=pass (google.com: domain of linux-kernel+bounces-73561-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-73561-linux.lists.archive=gmail.com@vger.kernel.org" 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 am.mirrors.kernel.org (Postfix) with ESMTPS id B2A431F236E1 for ; Tue, 20 Feb 2024 19:01:09 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 07DEB76C9C; Tue, 20 Feb 2024 19:00:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="MyQpiTk6" Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1CD2D6A01C; Tue, 20 Feb 2024 19:00:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708455652; cv=none; b=ha4Jm4AjN6DEZZjgx6UXtv5nGGmWDZQ5Zr5sJGqxMh2BHRLc9uSAhx8fihSo3CVCb8AK4BJlsKXZNWWhlVbxod3QkamBSoZDyc1oAWgsFvxjHJohKPmymaHVWAe29Gz7x9TFDUyXeszxYumAHEegZQhdzGSa8h6n1+FBKqFcas4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708455652; c=relaxed/simple; bh=I3DIUhiFiCChc1O+UyL6/snCDIRq/dn4PEK9wZxLEdg=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=rsYQ5jDc7rrUW82dslm+fINfK+5CpOGp2Pu7KyTbFaRTRgkX8iA9fDa3RaXUwO5ale1w/bdwsJ+pOj6D3Y1SPLzMw8YhOpI2mzOWPWpgfmVvSfRy2Wr70xk6xIN052HvcL5Guec450CIUamf1vSF64ZKSMZUBzRRXRqSVBbzKUQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=MyQpiTk6; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63240C43390; Tue, 20 Feb 2024 19:00:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1708455651; bh=I3DIUhiFiCChc1O+UyL6/snCDIRq/dn4PEK9wZxLEdg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=MyQpiTk6TotHP19bqN2ewPLAav5vz4wjYsaAhqdB94ym2nOGp4eeE+BpKSnxEckIg uYawJ5U6YG2yUcCWWM63G1dUYcXtU0kBihYPMzkNxzEByyU7Iiu6Dre5W6MqvoyUYE nkL0lb2mshdzM/71k2IehiHwOcjb3/3tcIwNQ4cw= Date: Tue, 20 Feb 2024 11:00:50 -0800 From: Andrew Morton To: Luis Chamberlain Cc: willy@infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, gost.dev@samsung.com, p.raghav@samsung.com, da.gomez@samsung.com, kernel test robot Subject: Re: [PATCH] test_xarray: fix soft lockup for advanced-api tests Message-Id: <20240220110050.210b1f2866d2c80716d021e8@linux-foundation.org> In-Reply-To: References: <20240216194329.840555-1-mcgrof@kernel.org> <20240219182808.726500bf3546b49ac05d98d4@linux-foundation.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 20 Feb 2024 09:45:19 -0800 Luis Chamberlain wrote: > > > --- a/lib/test_xarray.c > > > +++ b/lib/test_xarray.c > > > @@ -781,6 +781,7 @@ static noinline void *test_get_entry(struct xarray *xa, unsigned long index) > > > { > > > XA_STATE(xas, xa, index); > > > void *p; > > > + static unsigned int i = 0; > > > > I don't think this needs static storage. > > Actually it does, without it the schedule never happens and produces the > soft lockup in the splat below.: OK, I'll restore that.