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engine=8.12.0-2510240000 definitions=main-2511180097 X-Proofpoint-GUID: 5C7hYvuXvZY3E3vH1wb3r_8sBhrkTKSd X-Authority-Analysis: v=2.4 cv=JZyxbEKV c=1 sm=1 tr=0 ts=691c61bd cx=c_pps a=XiAAW1AwiKB2Y8Wsi+sD2Q==:117 a=XiAAW1AwiKB2Y8Wsi+sD2Q==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EuBOgC_IxCKCcqtj-RsA:9 a=QEXdDO2ut3YA:10 a=HhbK4dLum7pmb74im6QT:22 X-Proofpoint-ORIG-GUID: 5C7hYvuXvZY3E3vH1wb3r_8sBhrkTKSd X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE1MDAzMiBTYWx0ZWRfXwfb4f8Gos4oJ ZsU5cjmVVo/l/tuyGZ6toPge3AwgaCjbVnnBDGIxHAx3qKrIn1xB7tC3LC+yRw7Y3fsOpb0t6xV scWZxEmNrRSeyggBWbCZc/hBBCCClOv9nA6brJmMAnUkVcXfyswmf+diiN0WCZV7XhHSfMl6/Fh BGGSvShsmUu9tGWGJwT73apF+KkrHHuvTHRXlmsBRe+9AZ+BN0WgMBU3XhYoulWvTUpLXph81kU k23HNO0cBdy+p2tfcYsEQOq0w3nuUuc4QfCvhZflEZcR6qlmpjyMivUZRKNClj5fzl01nGL+lCj Bex8AhqkxtMcmqUM2s5s2v8eH89bZz9aehEjJJJG8dTEU0UACl8YmLvCZGNZc7v+Yh9r1A20ynS OIR6i71MdoqnArVczdu7HtJCo3t7jg== On 17/11/2025 20:40, Bart Van Assche wrote: > Hi, > > If I enable both CONFIG_DEBUG_INFO_BTF and CONFIG_KCSAN in the kernel > configuration, the > kernel build fails as follows: > > $ make > [ ... ] > WARN: multiple IDs found for 'task_struct': 107, 36417 - using 107 > WARN: multiple IDs found for 'vm_area_struct': 271, 36434 - using 271 > [ ... ] > make[2]: *** [scripts/Makefile.vmlinux:72: vmlinux.unstripped] Error 255 > make[2]: *** Deleting file 'vmlinux.unstripped' > make[1]: *** [/usr/local/google/home/bvanassche/software/linux-kernel/ > Makefile:1242: vmlinux] Error 2 > make: *** [Makefile:248: __sub-make] Error 2 > > Is this a known issue? > > Thanks, > > Bart. > > hi Bart, thanks for the report! Not a know issue to me at least; I tried to reproduce it with pahole v1.31 + gcc 12 and no luck. Would you mind sharing a few additional details: - compiler version - pahole version - full .config Thank you! Alan