Messages in this thread | | | Date | Mon, 14 Oct 2013 21:58:36 +0800 | From | Jiang Liu <> | Subject | Re: [RFT PATCH v2 1/4] arm64: fix possible invalid FPSIMD initialization state |
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On 10/14/2013 09:54 PM, Catalin Marinas wrote: > On Sun, Oct 13, 2013 at 03:20:17PM +0100, Jiang Liu wrote: >> From: Jiang Liu <jiang.liu@huawei.com> >> >> If context switching happens during executing fpsimd_flush_thread(), >> stale value in FPSIMD registers will be saved into current thread's >> fpsimd_state by fpsimd_thread_switch(). That may cause invalid >> initialization state for the new process, so disable preemption >> when executing fpsimd_flush_thread(). >> >> Signed-off-by: Jiang Liu <jiang.liu@huawei.com> >> Cc: Jiang Liu <liuj97@gmail.com> > > That's already in mainline (3.12-rc4). >
Hi Catalin, I haven't noticed that yet, sorry for the noise:) Thanks! Gerry
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