1*4882a593SmuzhiyunFrom ea9ee4dd64ee88e03a959b2c694aa8feb53c7e78 Mon Sep 17 00:00:00 2001 2*4882a593SmuzhiyunFrom: He Zhe <zhe.he@windriver.com> 3*4882a593SmuzhiyunDate: Wed, 28 Sep 2022 16:47:24 +0800 4*4882a593SmuzhiyunSubject: [PATCH] stress-cpu: disable float128 math on powerpc64 to avoid 5*4882a593Smuzhiyun SIGILL 6*4882a593Smuzhiyun 7*4882a593Smuzhiyunfloat128 requires instructions of xsmaddqp and xsmsubqp which are added to 8*4882a593Smuzhiyunqemu since v7.0 by the following commit. 9*4882a593Smuzhiyunhttps://github.com/qemu/qemu/commit/3bb1aed246d7b59ceee625a82628f7369d492a8f 10*4882a593Smuzhiyun 11*4882a593SmuzhiyunWhile kirkstone is still at v6.2 and thus experiences SIGILL as follow 12*4882a593Smuzhiyunroot@qemuppc64:~# stress-ng --cpu 2 --timeout 30s 13*4882a593Smuzhiyunstress-ng: info: [972] setting to a 30 second run per stressor 14*4882a593Smuzhiyunstress-ng: info: [972] dispatching hogs: 2 cpu 15*4882a593Smuzhiyunstress-ng: info: [973] stressor terminated with unexpected signal signal 4 'SIGILL' 16*4882a593Smuzhiyun<snip> 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunUpstream-Status: Inappropriate [This is specific to kirkstone since qemu on 19*4882a593Smuzhiyunmaster branch has upgraded to v7.1.] 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunSigned-off-by: He Zhe <zhe.he@windriver.com> 22*4882a593Smuzhiyun--- 23*4882a593Smuzhiyun stress-cpu.c | 4 ++++ 24*4882a593Smuzhiyun 1 file changed, 4 insertions(+) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyundiff --git a/stress-cpu.c b/stress-cpu.c 27*4882a593Smuzhiyunindex 0a08f1d1..2849e715 100644 28*4882a593Smuzhiyun--- a/stress-cpu.c 29*4882a593Smuzhiyun+++ b/stress-cpu.c 30*4882a593Smuzhiyun@@ -41,6 +41,10 @@ 31*4882a593Smuzhiyun #undef HAVE_FLOAT_DECIMAL128 32*4882a593Smuzhiyun #endif 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun+#if defined(STRESS_ARCH_PPC64) 35*4882a593Smuzhiyun+#undef HAVE_FLOAT128 36*4882a593Smuzhiyun+#endif 37*4882a593Smuzhiyun+ 38*4882a593Smuzhiyun #define GAMMA (0.57721566490153286060651209008240243104215933593992L) 39*4882a593Smuzhiyun #define OMEGA (0.56714329040978387299996866221035554975381578718651L) 40*4882a593Smuzhiyun #define PSI (3.35988566624317755317201130291892717968890513373197L) 41*4882a593Smuzhiyun-- 42*4882a593Smuzhiyun2.25.1 43*4882a593Smuzhiyun 44