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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 9A794C3DA64 for ; Wed, 31 Jul 2024 12:05:34 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=MIjDL/fe; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=MIjDL/fe; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4WYrQN6ZxPz3dJ0 for ; Wed, 31 Jul 2024 22:05:32 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=MIjDL/fe; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=MIjDL/fe; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=redhat.com (client-ip=170.10.133.124; helo=us-smtp-delivery-124.mimecast.com; envelope-from=david@redhat.com; receiver=lists.ozlabs.org) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4WYrPY5QlLz2y8V for ; Wed, 31 Jul 2024 22:04:47 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1722427484; h=from:from:reply-to:subject:subject: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=t8OwXpxqWJ9LF2ZjW8frYzF1FvvbDpYijxhktl6pc0I=; b=MIjDL/fetzXX2V+MWz6sizXdR94bpFX9LnFtcaEFOG9YptIGwJ45q7zOFQohYcftJemENN C1uKXc52f8bijLrNGeQka9O901Fb4tAK8l8I5toXzptekAQ8EwdIC6Fz23SPv/CaMpL9Q9 C/ySXsvLxLKROad7J83MnzjmwPIJ8no= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1722427484; h=from:from:reply-to:subject:subject: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=t8OwXpxqWJ9LF2ZjW8frYzF1FvvbDpYijxhktl6pc0I=; b=MIjDL/fetzXX2V+MWz6sizXdR94bpFX9LnFtcaEFOG9YptIGwJ45q7zOFQohYcftJemENN C1uKXc52f8bijLrNGeQka9O901Fb4tAK8l8I5toXzptekAQ8EwdIC6Fz23SPv/CaMpL9Q9 C/ySXsvLxLKROad7J83MnzjmwPIJ8no= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-304-1ZFsc_JcPLWogFdPWxfcXQ-1; Wed, 31 Jul 2024 08:04:42 -0400 X-MC-Unique: 1ZFsc_JcPLWogFdPWxfcXQ-1 Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-42816aacabcso33259365e9.1 for ; Wed, 31 Jul 2024 05:04:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722427481; x=1723032281; h=content-transfer-encoding:in-reply-to:organization:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=t8OwXpxqWJ9LF2ZjW8frYzF1FvvbDpYijxhktl6pc0I=; b=Bh101MMOo1bKrUJ2tRLvMqY7sn7ODsDs6RnsOLtQ1D4iEcJk3E4/pl7vc1W1/ri8Yr 6jBLGd6zHC+5X8qi0D0i3zB+rDVMYuxHNM3/bOCqGG4nSj0/93hp4betJfq0mEx5ZrY1 2PHa3n10bRU3pGD0MoRb4Rtd6owkkPA8FevQbLKTMIdjKe8nmLxn1JWpbIgSsqWNm/WU LbkRYcxvmaFK9KjW8GGGFEvFUkAKwGu7nGxbxN3kFNqDSk+fUMw/nkqCbVbFme72n7x1 gwtuCTTNBCGdBBUotBYjBUH1BHWzlb98j/RV/IgCk5/QurqyipT2TCNyNZGknUttzqjA q9Qg== X-Forwarded-Encrypted: i=1; AJvYcCX0R3dvqA3BkNvbAcW5g5wwKQgBBHrAApL8jGWD/DqYUNDUitXcDlhxffayDjf3PAzr9lMpfARqMaAvM5Gu2dbtyUGfBQf6gGcxqFUt6w== X-Gm-Message-State: AOJu0Yw7kh06t1wbcxqFjrrzZ0RTzEyb3qmIibb7klJwiAm2RHZQFMa9 UYvvvB3ucpDLMytMd8QnwjV6V8czH1t6IXRXidmqjW+W16AOCBqsw1pQhhyJ6z3I0bbiH3r6Vy5 Wy5BANJiVKDD1lcsZ/UVyZt3vy0I6/rapDtqdu0PEzCn/ZGUGNC1q8Oqornwxy8M= X-Received: by 2002:a5d:4685:0:b0:368:747c:5a04 with SMTP id ffacd0b85a97d-36b5cefdeeamr8580766f8f.25.1722427481187; Wed, 31 Jul 2024 05:04:41 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGmD2lojKxIcqxS7aO5UvLLbTJwvidRSnvM1ZfOBQCWEPb2TODLU+jC+FHTySqsQiKDAq5Fxw== X-Received: by 2002:a5d:4685:0:b0:368:747c:5a04 with SMTP id ffacd0b85a97d-36b5cefdeeamr8580721f8f.25.1722427480640; Wed, 31 Jul 2024 05:04:40 -0700 (PDT) Received: from ?IPV6:2003:cb:c70b:5f00:9b61:28a2:eea1:fa49? (p200300cbc70b5f009b6128a2eea1fa49.dip0.t-ipconnect.de. [2003:cb:c70b:5f00:9b61:28a2:eea1:fa49]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-36b367d9393sm16801326f8f.26.2024.07.31.05.04.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 31 Jul 2024 05:04:40 -0700 (PDT) Message-ID: Date: Wed, 31 Jul 2024 14:04:38 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/8] mm/dax: Dump start address in fault handler To: Peter Xu , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20240715192142.3241557-1-peterx@redhat.com> <20240715192142.3241557-2-peterx@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: <20240715192142.3241557-2-peterx@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Hansen , Christophe Leroy , Dan Williams , Dave Jiang , "Aneesh Kumar K . V" , x86@kernel.org, Hugh Dickins , Matthew Wilcox , Ingo Molnar , Huang Ying , Rik van Riel , Nicholas Piggin , Borislav Petkov , "Kirill A . Shutemov" , Thomas Gleixner , Vlastimil Babka , Oscar Salvador , linuxppc-dev@lists.ozlabs.org, Andrew Morton , Rick P Edgecombe , Mel Gorman Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 15.07.24 21:21, Peter Xu wrote: > Currently the dax fault handler dumps the vma range when dynamic debugging > enabled. That's mostly not useful. Dump the (aligned) address instead > with the order info. > > Signed-off-by: Peter Xu > --- > drivers/dax/device.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/dax/device.c b/drivers/dax/device.c > index eb61598247a9..714174844ca5 100644 > --- a/drivers/dax/device.c > +++ b/drivers/dax/device.c > @@ -235,9 +235,9 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf, unsigned int order) > int id; > struct dev_dax *dev_dax = filp->private_data; > > - dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) order:%d\n", current->comm, > - (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", > - vmf->vma->vm_start, vmf->vma->vm_end, order); > + dev_dbg(&dev_dax->dev, "%s: op=%s addr=%#lx order=%d\n", current->comm, > + (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", > + vmf->address & ~((1UL << (order + PAGE_SHIFT)) - 1), order); > > id = dax_read_lock(); > if (order == 0) Agreed, the address of the fault is better. Just wondering, would the unmasked address be even better? Using the order we can figure out the to-be-aligned address. Acked-by: David Hildenbrand -- Cheers, David / dhildenb