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| author | 晏艳(采苓) <yanyan.yan@antgroup.com> | 2023-03-28 15:25:37 +0800 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2023-05-02 10:59:47 -0600 |
| commit | 530421acaeda1d8c3533f241db944127f69efadc (patch) | |
| tree | 122baebda1d06c09c7acbef04c5816652bc28e42 /Documentation | |
| parent | 4a2d80ad062e2f3722227a72ad6050aa3e2c7676 (diff) | |
| download | lwn-530421acaeda1d8c3533f241db944127f69efadc.tar.gz lwn-530421acaeda1d8c3533f241db944127f69efadc.zip | |
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 <yanyan.yan@antgroup.com>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Link: https://lore.kernel.org/r/20230328072537.20188-1-yanyan.yan@antgroup.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/arch/x86/kernel-stacks.rst | 2 |
1 files changed, 1 insertions, 1 deletions
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. |