Messages in this thread Patch in this message | | | From | Alan Curry <> | Subject | Re: [PATCH] powerpc: fix altivec_unavailable_exception Oopses | Date | Wed, 22 Feb 2006 01:42:37 -0500 (EST) |
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Kumar Gala writes the following: > >Would you mine providing a patch for arch/ppc/kernel/head.S and >adding a signed-off-by line.
OK, combined patch... applies clean to 2.6.16-rc4, applies with fuzz to 2.6.15.4, both compiled and tested. Patch prevents Oopsing of CONFIG_ALTIVEC=n kernel by user executing altivec instruction in both cases.
Signed-off-by: Alan Curry <pacman@TheWorld.com>
--- arch/ppc/kernel/head.S.orig 2006-02-21 20:58:08.000000000 -0500 +++ arch/ppc/kernel/head.S 2006-02-21 20:58:11.000000000 -0500 @@ -751,6 +751,7 @@ AltiVecUnavailable: #ifdef CONFIG_ALTIVEC bne load_up_altivec /* if from user, just load it up */ #endif /* CONFIG_ALTIVEC */ + addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception) #ifdef CONFIG_PPC64BRIDGE --- arch/powerpc/kernel/head_32.S.orig 2006-02-21 15:58:18.000000000 -0500 +++ arch/powerpc/kernel/head_32.S 2006-02-21 15:59:23.000000000 -0500 @@ -714,6 +714,7 @@ AltiVecUnavailable: #ifdef CONFIG_ALTIVEC bne load_up_altivec /* if from user, just load it up */ #endif /* CONFIG_ALTIVEC */ + addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception) PerformanceMonitor: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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