Commit-ID: 864a0922dd128392467611d9857e5138c6a91999 Gitweb: http://git.kernel.org/tip/864a0922dd128392467611d9857e5138c6a91999 Author: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> AuthorDate: Wed, 13 Jan 2010 10:16:07 +0000 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Wed, 13 Jan 2010 11:23:45 +0100 x86: kernel_thread() -- initialize SS to a known state Before the kernel_thread was converted into "C" we had pt_regs::ss set to __KERNEL_DS (by SAVE_ALL asm macro). Though I must admit I didn't find any *explicit* load of %ss from this structure the better to be on a safe side and set it to a known value. Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Cc: Christian Kujau <lists@xxxxxxxxxxxxxxx> Cc: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@xxxxxxxxxx> Cc: Brian Gerst <brgerst@xxxxxxxxx> LKML-Reference: <1263377768-19600-1-git-send-email-ian.campbell@xxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- arch/x86/kernel/process.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index c6ee241..02c3ee0 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -288,6 +288,8 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) regs.es = __USER_DS; regs.fs = __KERNEL_PERCPU; regs.gs = __KERNEL_STACK_CANARY; +#else + regs.ss = __KERNEL_DS; #endif regs.orig_ax = -1; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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