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([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1ff58f19ca6sm126481525ad.49.2024.08.08.08.21.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 08 Aug 2024 08:21:45 -0700 (PDT) Message-ID: Date: Thu, 8 Aug 2024 08:21:44 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 16/23] powerpc/e500: Switch to 64 bits PGD on 85xx (32 bits) To: Christophe Leroy Cc: "linux-kernel@vger.kernel.org" , Nicholas Piggin , "linux-mm@kvack.org" , Peter Xu , Jason Gunthorpe , Andrew Morton , "linuxppc-dev@lists.ozlabs.org" , Oscar Salvador References: <2c7adbc9-609d-41a9-8a3b-a63d59e21a1f@roeck-us.net> <4f46d614-0fbb-452b-a778-b7b3a7f6da8b@roeck-us.net> <5cc43ed9-b4f8-49f5-99ee-b411bb144085@roeck-us.net> <17eed040-969e-4d2c-b20b-ecfd93450901@csgroup.eu> Content-Language: en-US From: Guenter Roeck Autocrypt: addr=linux@roeck-us.net; keydata= xsFNBE6H1WcBEACu6jIcw5kZ5dGeJ7E7B2uweQR/4FGxH10/H1O1+ApmcQ9i87XdZQiB9cpN RYHA7RCEK2dh6dDccykQk3bC90xXMPg+O3R+C/SkwcnUak1UZaeK/SwQbq/t0tkMzYDRxfJ7 nyFiKxUehbNF3r9qlJgPqONwX5vJy4/GvDHdddSCxV41P/ejsZ8PykxyJs98UWhF54tGRWFl 7i1xvaDB9lN5WTLRKSO7wICuLiSz5WZHXMkyF4d+/O5ll7yz/o/JxK5vO/sduYDIlFTvBZDh gzaEtNf5tQjsjG4io8E0Yq0ViobLkS2RTNZT8ICq/Jmvl0SpbHRvYwa2DhNsK0YjHFQBB0FX IdhdUEzNefcNcYvqigJpdICoP2e4yJSyflHFO4dr0OrdnGLe1Zi/8Xo/2+M1dSSEt196rXaC kwu2KgIgmkRBb3cp2vIBBIIowU8W3qC1+w+RdMUrZxKGWJ3juwcgveJlzMpMZNyM1jobSXZ0 VHGMNJ3MwXlrEFPXaYJgibcg6brM6wGfX/LBvc/haWw4yO24lT5eitm4UBdIy9pKkKmHHh7s jfZJkB5fWKVdoCv/omy6UyH6ykLOPFugl+hVL2Prf8xrXuZe1CMS7ID9Lc8FaL1ROIN/W8Vk BIsJMaWOhks//7d92Uf3EArDlDShwR2+D+AMon8NULuLBHiEUQARAQABzTJHdWVudGVyIFJv ZWNrIChMaW51eCBhY2NvdW50KSA8bGludXhAcm9lY2stdXMubmV0PsLBgQQTAQIAKwIbAwYL CQgHAwIGFQgCCQoLBBYCAwECHgECF4ACGQEFAlVcphcFCRmg06EACgkQyx8mb86fmYFg0RAA nzXJzuPkLJaOmSIzPAqqnutACchT/meCOgMEpS5oLf6xn5ySZkl23OxuhpMZTVX+49c9pvBx hpvl5bCWFu5qC1jC2eWRYU+aZZE4sxMaAGeWenQJsiG9lP8wkfCJP3ockNu0ZXXAXwIbY1O1 c+l11zQkZw89zNgWgKobKzrDMBFOYtAh0pAInZ9TSn7oA4Ctejouo5wUugmk8MrDtUVXmEA9 7f9fgKYSwl/H7dfKKsS1bDOpyJlqhEAH94BHJdK/b1tzwJCFAXFhMlmlbYEk8kWjcxQgDWMu GAthQzSuAyhqyZwFcOlMCNbAcTSQawSo3B9yM9mHJne5RrAbVz4TWLnEaX8gA5xK3uCNCeyI sqYuzA4OzcMwnnTASvzsGZoYHTFP3DQwf2nzxD6yBGCfwNGIYfS0i8YN8XcBgEcDFMWpOQhT Pu3HeztMnF3HXrc0t7e5rDW9zCh3k2PA6D2NV4fews9KDFhLlTfCVzf0PS1dRVVWM+4jVl6l HRIAgWp+2/f8dx5vPc4Ycp4IsZN0l1h9uT7qm1KTwz+sSl1zOqKD/BpfGNZfLRRxrXthvvY8 BltcuZ4+PGFTcRkMytUbMDFMF9Cjd2W9dXD35PEtvj8wnEyzIos8bbgtLrGTv/SYhmPpahJA l8hPhYvmAvpOmusUUyB30StsHIU2LLccUPPOwU0ETofVZwEQALlLbQeBDTDbwQYrj0gbx3bq 7kpKABxN2MqeuqGr02DpS9883d/t7ontxasXoEz2GTioevvRmllJlPQERVxM8gQoNg22twF7 pB/zsrIjxkE9heE4wYfN1AyzT+AxgYN6f8hVQ7Nrc9XgZZe+8IkuW/Nf64KzNJXnSH4u6nJM J2+Dt274YoFcXR1nG76Q259mKwzbCukKbd6piL+VsT/qBrLhZe9Ivbjq5WMdkQKnP7gYKCAi pNVJC4enWfivZsYupMd9qn7Uv/oCZDYoBTdMSBUblaLMwlcjnPpOYK5rfHvC4opxl+P/Vzyz 6WC2TLkPtKvYvXmdsI6rnEI4Uucg0Au/Ulg7aqqKhzGPIbVaL+U0Wk82nz6hz+WP2ggTrY1w ZlPlRt8WM9w6WfLf2j+PuGklj37m+KvaOEfLsF1v464dSpy1tQVHhhp8LFTxh/6RWkRIR2uF I4v3Xu/k5D0LhaZHpQ4C+xKsQxpTGuYh2tnRaRL14YMW1dlI3HfeB2gj7Yc8XdHh9vkpPyuT nY/ZsFbnvBtiw7GchKKri2gDhRb2QNNDyBnQn5mRFw7CyuFclAksOdV/sdpQnYlYcRQWOUGY HhQ5eqTRZjm9z+qQe/T0HQpmiPTqQcIaG/edgKVTUjITfA7AJMKLQHgp04Vylb+G6jocnQQX JqvvP09whbqrABEBAAHCwWUEGAECAA8CGwwFAlVcpi8FCRmg08MACgkQyx8mb86fmYHNRQ/+ J0OZsBYP4leJvQF8lx9zif+v4ZY/6C9tTcUv/KNAE5leyrD4IKbnV4PnbrVhjq861it/zRQW cFpWQszZyWRwNPWUUz7ejmm9lAwPbr8xWT4qMSA43VKQ7ZCeTQJ4TC8kjqtcbw41SjkjrcTG wF52zFO4bOWyovVAPncvV9eGA/vtnd3xEZXQiSt91kBSqK28yjxAqK/c3G6i7IX2rg6pzgqh hiH3/1qM2M/LSuqAv0Rwrt/k+pZXE+B4Ud42hwmMr0TfhNxG+X7YKvjKC+SjPjqp0CaztQ0H nsDLSLElVROxCd9m8CAUuHplgmR3seYCOrT4jriMFBtKNPtj2EE4DNV4s7k0Zy+6iRQ8G8ng QjsSqYJx8iAR8JRB7Gm2rQOMv8lSRdjva++GT0VLXtHULdlzg8VjDnFZ3lfz5PWEOeIMk7Rj trjv82EZtrhLuLjHRCaG50OOm0hwPSk1J64R8O3HjSLdertmw7eyAYOo4RuWJguYMg5DRnBk WkRwrSuCn7UG+qVWZeKEsFKFOkynOs3pVbcbq1pxbhk3TRWCGRU5JolI4ohy/7JV1TVbjiDI HP/aVnm6NC8of26P40Pg8EdAhajZnHHjA7FrJXsy3cyIGqvg9os4rNkUWmrCfLLsZDHD8FnU mDW4+i+XlNFUPUYMrIKi9joBhu18ssf5i5Q= In-Reply-To: <17eed040-969e-4d2c-b20b-ecfd93450901@csgroup.eu> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: pca6kefcoutd34uim34boq7fp8xmagsb X-Rspamd-Queue-Id: 6BCB780022 X-Rspamd-Server: rspam11 X-HE-Tag: 1723130507-454244 X-HE-Meta: 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 xQof8Kmb qsda95E3B+f/6qIdYn7JZiQ27RWPCeaLqsL2XisBv5NI+9ZD5IBE4jRhkbZ9sxMdOlHuItkejnGx2yGR5hh3c3wwX/EIb+cU9DPwgHqiij4+MmSiAP6vmqHWl57T8Wrt2Ly8xMC0eTpxpNq9KB2fRJ/Z0dr9CKIBhCsrcAdmK+IBJZv1t0C9KEruDaVm4Uilg2SRPxZZ3UXvI4Bvhf5eD3f/ZZRYySmp+dScX7azzIj0etH+mtf5gyMCD9IIS8D8Ktj9ZeoJ8qXveiTABDKgc/d1TSpFt9IRqsFUJO55iHnBTf5vSjP/fHFojQvsEp4yWtwepxk04wQ8+qQI2rlsu+pPtOUHn2hBK380ThdDQ+94CPkIaa3RXZUqwcln3SIem8kCEKQ4HLpXlk36ggoMKz/lFk5jRM/iAt9w1EVxZjDfSfZigl5B221EP4NqWmdYWbgtNoHdPbit3w9cdL1c5/bEyhb/1YM2G6h/c0l8tXXw4bRYklwlXUcBWf10wHmrfPENX2yNeBnUylZE4//wFT6UCQvIT1Rw9ewgcnfsnCf6k2kawoMrML8S9uxtUkp1egqxsgeH+09MnpIsP5x8YD0eVpL6EMsbpEzY0oo305NMm00Tpc8BQniKpcPDktdK5EnMu2zwSFpxV0Do+8d7+yYuvPgCPPRlheu9YB+aREUuwWwocrlSS2y/NKBLQZjbC2Zc8EDf0/2mQciaWzpn5LNOkfA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/8/24 02:36, Christophe Leroy wrote: > > > Le 07/08/2024 à 16:51, Guenter Roeck a écrit : >> On 8/7/24 03:11, Christophe Leroy wrote: >>> Hi, >>> >>> Le 31/07/2024 à 18:35, Guenter Roeck a écrit : >>>> On 7/31/24 08:36, LEROY Christophe wrote: >>>>> >>>>> Hi Guenter, >>>>> Thanks for this report. I'm afk this week, i"ll have a look at it in more détails next week. >>>>> But to be sûre, does that Oops match the bisected commit ? Because pmd_leaf()  for e500 doesn't exist yet so pmd_write() shouldnt be called. >>>>> I did validate all my changes with mpc8544 on qemu when i implemented this séries, using map_hugetlb mm selftest. What test tool are you using ? >>>> >>>> Nothing special; it is just a qemu boot test with various module test and debug options enabled, >>>> using a root file system generated with buildroot. >>> >>> I still don't get anything with mpc85xx_defconfig. >>> >>> Can you tell with debug options you use and which module tests ? >>> >> >> Please see https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fserver.roeck-us.net%2Fqemu%2Fppc-v6.11-rc2%2F&data=05%7C02%7Cchristophe.leroy%40csgroup.eu%7Cfd337af1375448bcda1508dcb6f06644%7C8b87af7d86474dc78df45f69a2011bb5%7C0%7C0%7C638586390853555531%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=7kihrxw5%2FrCI6TzmxGM56tEmghc1Bj7b1czXuM0%2BVrk%3D&reserved=0. >> > > Thanks, > > CONFIG_SLUB_DEBUG_ON is what exhibits the problem. > > I sent out a patch: https://patchwork.ozlabs.org/project/linuxppc-dev/patch/1cdaacb391cbd3e0240f0e0faf691202874e9422.1723109462.git.christophe.leroy@csgroup.eu/ > > With that patch I can successfully boot your config. > > Can you give it a test ? > Done; the patch fixes the problem for me. Thanks! Guenter