From: He Zhe <zhe...@windriver.com> float128 requires instructions of xsmaddqp and xsmsubqp which are added to qemu since v7.0 by the following commit. https://github.com/qemu/qemu/commit/3bb1aed246d7b59ceee625a82628f7369d492a8f
While kirkstone is still at v6.2 and thus experiences SIGILL as follow root@qemuppc64:~# stress-ng --cpu 2 --timeout 30s stress-ng: info: [972] setting to a 30 second run per stressor stress-ng: info: [972] dispatching hogs: 2 cpu stress-ng: info: [973] stressor terminated with unexpected signal signal 4 'SIGILL' <snip> This is specific to kirkstone since qemu on master branch has upgraded to v7.1. Signed-off-by: He Zhe <zhe...@windriver.com> Signed-off-by: Steve Sakoman <st...@sakoman.com> --- ...le-float128-math-on-powerpc64-to-avo.patch | 43 +++++++++++++++++++ .../stress-ng/stress-ng_0.13.12.bb | 4 +- 2 files changed, 46 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-extended/stress-ng/stress-ng-0.13.12/0001-stress-cpu-disable-float128-math-on-powerpc64-to-avo.patch diff --git a/meta/recipes-extended/stress-ng/stress-ng-0.13.12/0001-stress-cpu-disable-float128-math-on-powerpc64-to-avo.patch b/meta/recipes-extended/stress-ng/stress-ng-0.13.12/0001-stress-cpu-disable-float128-math-on-powerpc64-to-avo.patch new file mode 100644 index 0000000000..bb35b3030a --- /dev/null +++ b/meta/recipes-extended/stress-ng/stress-ng-0.13.12/0001-stress-cpu-disable-float128-math-on-powerpc64-to-avo.patch @@ -0,0 +1,43 @@ +From ea9ee4dd64ee88e03a959b2c694aa8feb53c7e78 Mon Sep 17 00:00:00 2001 +From: He Zhe <zhe...@windriver.com> +Date: Wed, 28 Sep 2022 16:47:24 +0800 +Subject: [PATCH] stress-cpu: disable float128 math on powerpc64 to avoid + SIGILL + +float128 requires instructions of xsmaddqp and xsmsubqp which are added to +qemu since v7.0 by the following commit. +https://github.com/qemu/qemu/commit/3bb1aed246d7b59ceee625a82628f7369d492a8f + +While kirkstone is still at v6.2 and thus experiences SIGILL as follow +root@qemuppc64:~# stress-ng --cpu 2 --timeout 30s +stress-ng: info: [972] setting to a 30 second run per stressor +stress-ng: info: [972] dispatching hogs: 2 cpu +stress-ng: info: [973] stressor terminated with unexpected signal signal 4 'SIGILL' +<snip> + +Upstream-Status: Inappropriate [This is specific to kirkstone since qemu on +master branch has upgraded to v7.1.] + +Signed-off-by: He Zhe <zhe...@windriver.com> +--- + stress-cpu.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/stress-cpu.c b/stress-cpu.c +index 0a08f1d1..2849e715 100644 +--- a/stress-cpu.c ++++ b/stress-cpu.c +@@ -41,6 +41,10 @@ + #undef HAVE_FLOAT_DECIMAL128 + #endif + ++#if defined(STRESS_ARCH_PPC64) ++#undef HAVE_FLOAT128 ++#endif ++ + #define GAMMA (0.57721566490153286060651209008240243104215933593992L) + #define OMEGA (0.56714329040978387299996866221035554975381578718651L) + #define PSI (3.35988566624317755317201130291892717968890513373197L) +-- +2.25.1 + diff --git a/meta/recipes-extended/stress-ng/stress-ng_0.13.12.bb b/meta/recipes-extended/stress-ng/stress-ng_0.13.12.bb index fe177a4de0..807ecd3466 100644 --- a/meta/recipes-extended/stress-ng/stress-ng_0.13.12.bb +++ b/meta/recipes-extended/stress-ng/stress-ng_0.13.12.bb @@ -5,7 +5,9 @@ HOMEPAGE = "https://github.com/ColinIanKing/stress-ng#readme"; LICENSE = "GPL-2.0-only" LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263" -SRC_URI = "git://github.com/ColinIanKing/stress-ng.git;protocol=https;branch=master" +SRC_URI = "git://github.com/ColinIanKing/stress-ng.git;protocol=https;branch=master \ + file://0001-stress-cpu-disable-float128-math-on-powerpc64-to-avo.patch \ + " SRCREV = "f59bcb2fe1e25042e77d5e4942f72bfa026fa305" S = "${WORKDIR}/git" -- 2.25.1
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