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Message-ID: <CA+ekxPVXJjRzGFtN6_csAgXcsaSwWU_id7JWYbDQ32vjBj5LgA@mail.gmail.com> Date: Sat, 24 Oct 2015 15:26:32 -0600 From: Jeffrey Merkey <jeffmerkey@...il.com> To: linux-kernel <linux-kernel@...r.kernel.org> Subject: QUestion on x86_64 and i386 for settings of SS segment register I am updating the mdb kernel debugger on 4.2.4 and I noticed that user_mode_vm has been removed from the kernel sources for detecting user space memory addresses for purposes of loading the SS pointer. I am using __KERNEL_DS presently. old code: if (user_mode_vm(regs)) { sf->tSS = regs->ss; sf->tSP = regs->sp; } else { sf->tSS = __KERNEL_DS; sf->tSP = kernel_stack_pointer(regs); } is SS always assumed to be __KERNEL_DS in 4.2.4 for userspace stack addresses passed by pt_regs? Thanks Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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