On the core-updates branch, libaio has been updated to version 0.3.113. This version contains a new test which fails on guixp9 (one of the powerpc64le-linux builders) due to a bug present in the kernel it is running: --8<---------------cut here---------------start------------->8--- Starting cases/23.p FAIL: poll missed an event! FAIL: poll missed an event! FAIL: poll missed an event! test cases/23.t completed FAILED. Completed cases/23.p with 1 -- FAILED. Pass: 18 Fail: 1 Skip: 0 Test run complete at Sun Jul 17 10:39:33 AM UTC 2022 make[1]: *** [Makefile:53: partcheck] Error 1 make[1]: Leaving directory '/tmp/guix-build-libaio-0.3.113.drv-0/libaio-0.3.113/harness' make: *** [Makefile:23: partcheck] Error 2 Test suite failed, dumping logs. error: in phase 'check': uncaught exception: %exception #<&invoke-error program: "make" arguments: ("partcheck" "-j" "8" "prefix=/gnu/store/igbnjwlfr0mim89if6z46cqba0ny5lww-libaio-0.3.113" "CC=gcc") exit-status: 2 term-signal: #f stop-signal: #f> phase `check' failed after 97.9 seconds command "make" "partcheck" "-j" "8" "prefix=/gnu/store/igbnjwlfr0mim89if6z46cqba0ny5lww-libaio-0.3.113" "CC=gcc" failed with status 2 --8<---------------cut here---------------end--------------->8--- The header of libaio/harness/cases/23.t says: * Verify that aio poll doesn't miss any events. This is a regression test for * kernel commit 363bee27e258 ("aio: keep poll requests on waitqueue until * completed")ยน. guixp9 is running kernel linux-image-5.10.0-0.bpo.8-powerpc64le version 5.10.46-4~bpo10+1. The kernel commit mentioned above was backported to upstream stable kernel 5.10.85, which was included in Debian's linux-image version 5.10.92-1, available in the buster-backports kernel. So long story short, we need to update guixp9's kernel so that we can build core-update's libaio. I suggest we take the opportunity to update all of the Debian packages as well. I don't have access to guixp9's console, so unfortunately I can't perform the update. Or rather, I can if someone else reboots the machine afterwards and fixes any boot issues that could come up (hopefully not but it's always a possibility). -- Thanks Thiago