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([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f9eb2f0374sm32374625ad.22.2024.06.22.08.34.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 22 Jun 2024 08:34:10 -0700 (PDT) Sender: Guenter Roeck Message-ID: <2760c168-974b-41da-9f1c-171a07bb60fb@roeck-us.net> Date: Sat, 22 Jun 2024 08:34:07 -0700 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 6.1 000/217] 6.1.95-rc1 review [parisc64/C3700 boot failures] To: Helge Deller , Greg Kroah-Hartman , stable@vger.kernel.org Cc: patches@lists.linux.dev, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de, jonathanh@nvidia.com, f.fainelli@gmail.com, sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de, conor@kernel.org, allen.lkml@gmail.com, broonie@kernel.org, Oleg Nesterov , linux-parisc@vger.kernel.org, "James E.J. Bottomley" References: <20240619125556.491243678@linuxfoundation.org> <614d86a1-72c4-489b-94f9-fbe553c25f28@roeck-us.net> <21d5c00f-a373-4173-84e5-33dbd6305b57@gmx.de> 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: <21d5c00f-a373-4173-84e5-33dbd6305b57@gmx.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 6/22/24 08:13, Helge Deller wrote: > On 6/22/24 16:58, Guenter Roeck wrote: >> [ Copying parisc maintainers - maybe they can test on real hardware ] >> >> On 6/19/24 05:54, Greg Kroah-Hartman wrote: >>> This is the start of the stable review cycle for the 6.1.95 release. >>> There are 217 patches in this series, all will be posted as a response >>> to this one.  If anyone has any issues with these being applied, please >>> let me know. >>> >>> Responses should be made by Fri, 21 Jun 2024 12:55:11 +0000. >>> Anything received after that time might be too late. >>> >> ... >>> Oleg Nesterov >>>      zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING >>> >> >> I can not explain it, but this patch causes all my parisc64 (C3700) >> boot tests to crash. There are lots of memory corruption BUGs such as >> >> [    0.000000] ============================================================================= >> [    0.000000] BUG kmalloc-96 (Not tainted): Padding overwritten. 0x0000000043411dd0-0x0000000043411f5f @offset=3536 >> >> ultimately followed by >> >> [    0.462562] Unaligned handler failed, ret = -14 >> ... >> [    0.469160]  IAOQ[0]: idr_alloc_cyclic+0x48/0x118 >> [    0.469372]  IAOQ[1]: idr_alloc_cyclic+0x54/0x118 >> [    0.469548]  RP(r2): __kernfs_new_node.constprop.0+0x160/0x420 >> [    0.469782] Backtrace: >> [    0.469928]  [<00000000404af108>] __kernfs_new_node.constprop.0+0x160/0x420 >> [    0.470285]  [<00000000404b0cac>] kernfs_new_node+0xbc/0x118 >> [    0.470523]  [<00000000404b158c>] kernfs_create_empty_dir+0x54/0xf0 >> [    0.470756]  [<00000000404b665c>] sysfs_create_mount_point+0x4c/0xb0 >> [    0.470996]  [<00000000401181cc>] cgroup_init+0x5b4/0x738 >> [    0.471213]  [<0000000040102220>] start_kernel+0x1238/0x1308 >> [    0.471429]  [<0000000040107c90>] start_parisc+0x188/0x1d0 >> ... >> [    0.474956] Kernel panic - not syncing: Attempted to kill the idle task! >> SeaBIOS wants SYSTEM RESET. >> >> This is with qemu v9.0.1. > > Just to be sure, did you tested the same kernel on physical hardware as well? > No, I don't have hardware. I only have qemu. That is why I copied you and the parisc mailing list. I would hope that someone can either confirm that this is a real problem or that it is qemu related. If it is qemu related, I'll just stop testing c3700 64-bit support with qemu on v6.1.y and other branches if/when the problem shows up there as well. > Please note, that 64-bit hppa (C3700) support in qemu was just recently added > and is still considered experimental. > So, maybe it's not a bug in the source, but in qemu...?!? > Sure, that is possible, though it is a bit unusual that it is only seen in 6.1.95 and not in any other branches or releases. In summary, please see this report as "This is a problem seen in qemu. It may or may not be seen on real hardware". Maybe I should add this as a common disclaimer to all my reports to avoid misunderstandings. Thanks, Guenter