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From Michael Cree: "Bisection lead to commitb38d08f318("percpu: restructure locking") as being the cause of lockups at initial boot on the kernel built for generic Alpha. On a suggestion by Tejun Heo that: So, the only thing I can think of is that it's calling spin_unlock_irq() while irq handling isn't set up yet. Can you please try the followings? 1. Convert all spin_[un]lock_irq() to spin_lock_irqsave/unlock_irqrestore()." Fixes:b38d08f318("percpu: restructure locking") Reported-and-tested-by: Michael Cree <mcree@orcon.net.nz> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Dennis Zhou <dennis@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.