44 lines
1.4 KiB
Diff
44 lines
1.4 KiB
Diff
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From ea9ee4dd64ee88e03a959b2c694aa8feb53c7e78 Mon Sep 17 00:00:00 2001
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From: He Zhe <zhe.he@windriver.com>
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Date: Wed, 28 Sep 2022 16:47:24 +0800
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Subject: [PATCH] stress-cpu: disable float128 math on powerpc64 to avoid
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SIGILL
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float128 requires instructions of xsmaddqp and xsmsubqp which are added to
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qemu since v7.0 by the following commit.
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https://github.com/qemu/qemu/commit/3bb1aed246d7b59ceee625a82628f7369d492a8f
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While kirkstone is still at v6.2 and thus experiences SIGILL as follow
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root@qemuppc64:~# stress-ng --cpu 2 --timeout 30s
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stress-ng: info: [972] setting to a 30 second run per stressor
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stress-ng: info: [972] dispatching hogs: 2 cpu
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stress-ng: info: [973] stressor terminated with unexpected signal signal 4 'SIGILL'
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<snip>
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Upstream-Status: Inappropriate [This is specific to kirkstone since qemu on
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master branch has upgraded to v7.1.]
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Signed-off-by: He Zhe <zhe.he@windriver.com>
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---
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stress-cpu.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/stress-cpu.c b/stress-cpu.c
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index 0a08f1d1..2849e715 100644
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--- a/stress-cpu.c
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+++ b/stress-cpu.c
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@@ -41,6 +41,10 @@
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#undef HAVE_FLOAT_DECIMAL128
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#endif
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+#if defined(STRESS_ARCH_PPC64)
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+#undef HAVE_FLOAT128
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+#endif
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+
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#define GAMMA (0.57721566490153286060651209008240243104215933593992L)
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#define OMEGA (0.56714329040978387299996866221035554975381578718651L)
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#define PSI (3.35988566624317755317201130291892717968890513373197L)
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--
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2.25.1
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