From 530421acaeda1d8c3533f241db944127f69efadc Mon Sep 17 00:00:00 2001 From: "晏艳(采苓)" Date: Tue, 28 Mar 2023 15:25:37 +0800 Subject: Documentation: update kernel stack for x86_64 Commit 6538b8ea886e ("x86_64: expand kernel stack to 16K") expanded kernel stack for x86_64 but left the wrong documentation, update it. Signed-off-by: Yan Yan Reviewed-by: Lai Jiangshan Link: https://lore.kernel.org/r/20230328072537.20188-1-yanyan.yan@antgroup.com Signed-off-by: Jonathan Corbet --- Documentation/arch/x86/kernel-stacks.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/arch/x86/kernel-stacks.rst b/Documentation/arch/x86/kernel-stacks.rst index 6b0bcf027ff1..738671a4070b 100644 --- a/Documentation/arch/x86/kernel-stacks.rst +++ b/Documentation/arch/x86/kernel-stacks.rst @@ -12,7 +12,7 @@ Most of the text from Keith Owens, hacked by AK x86_64 page size (PAGE_SIZE) is 4K. Like all other architectures, x86_64 has a kernel stack for every -active thread. These thread stacks are THREAD_SIZE (2*PAGE_SIZE) big. +active thread. These thread stacks are THREAD_SIZE (4*PAGE_SIZE) big. These stacks contain useful data as long as a thread is alive or a zombie. While the thread is in user space the kernel stack is empty except for the thread_info structure at the bottom. -- cgit v1.2.3