Subj : [$] Dynamically sizing the kernel stack
To   : All
From : LWN.net
Date : Tue May 21 2024 16:45:06

[$] Dynamically sizing the kernel stack

Date:
Tue, 21 May 2024 15:37:03 +0000

Description:
The kernel stack is a scarce and tightly constrained resource; kernel
developers often have to go far out of their way to avoid using too much
stack space.  The size of the stack is also fixed, leading to situations
where it is too small for some code paths, while wastefully large for
others.  At the 2024 Linux Storage,
Filesystem, Memory Management, and BPF Summit , Pasha Tatashin proposed
making the kernel stack size dynamic, making more space available when
needed while saving memory overall.  This change is not as easy to
implement as it might seem, though.

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Link to news story:
https://lwn.net/Articles/974367/


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