The imx-gpu-sdk recipe in the meta-imx layer references
${BB_NUMBER_THREADS} in its do_compile function. Changing
BB_NUMBER_THREADS between bitbake invocations leads to the well-knownWhen reparsing ...meta-imx/meta-sdk/recipes-graphics/imx-gpu-sdk/imx-gpu-sdk_5.8.0.bb:do_compile, the basehash value changed from 69be88cf220840ff2203e11cfe65681880b0bf9b88db67d50c1ba772b883bd18 to 5e6d5029fac8d7856ada4c2eca359568298f82cdb64567d7dd4deda503d9f83a. The metadata is not deterministic and this needs to be fixed. And I'm not the first to hit this problem with that recipe: https://community.nxp.com/t5/i-MX-Processors/imx-gpu-sdk-compile-error-IMX8MP-IMX8MM-IMX8MQ/td-p/1217864 This happens because BB_NUMBER_THREADS is in BB_HASHCONFIG_IGNORE_VARS, so changing it does not cause the recipe to be reparsed, but it is not included in BB_HASHEXCLUDE_COMMON and thus BB_BASEHASH_IGNORE_VARS. This is inconsistent with and in contrast to both PARALLEL_MAKE and OMP_NUM_THREADS, the latter of which even has ${BB_NUMBER_THREADS} as default value. Signed-off-by: Rasmus Villemoes <[email protected]> --- meta/conf/bitbake.conf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf index 6fb7bfeb23c..6bc18016056 100644 --- a/meta/conf/bitbake.conf +++ b/meta/conf/bitbake.conf @@ -942,7 +942,7 @@ BB_HASHEXCLUDE_COMMON ?= "TMPDIR FILE PATH PWD BB_TASKHASH BBPATH BBSERVER DL_DI BB_WORKERCONTEXT BB_LIMITEDDEPS BB_UNIHASH extend_recipe_sysroot DEPLOY_DIR \ SSTATE_HASHEQUIV_METHOD SSTATE_HASHEQUIV_REPORT_TASKDATA \ SSTATE_HASHEQUIV_OWNER CCACHE_TOP_DIR BB_HASHSERVE GIT_CEILING_DIRECTORIES \ - OMP_NUM_THREADS BB_CURRENTTASK" + OMP_NUM_THREADS BB_CURRENTTASK BB_NUMBER_THREADS" BB_BASEHASH_IGNORE_VARS ?= "${BB_HASHEXCLUDE_COMMON} PSEUDO_IGNORE_PATHS BUILDHISTORY_DIR \ SSTATE_DIR SOURCE_DATE_EPOCH" BB_HASHCONFIG_IGNORE_VARS ?= "${BB_HASHEXCLUDE_COMMON} DATE TIME SSH_AGENT_PID \ -- 2.31.1
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