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6769828703
When issuing a "shutdown -h now", the reboot syscall calls kernel_halt() which shouldn't return, otherwise one gets this panic: reboot: System halted Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000 CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.16.0-32bit+ #560 Backtrace: [<1018a694>] show_stack+0x18/0x28 [<106e68a8>] dump_stack+0x80/0x10c [<101a4df8>] panic+0xfc/0x290 [<101a90b8>] do_exit+0x73c/0x914 [<101c7e38>] SyS_reboot+0x190/0x1d4 [<1017e444>] syscall_exit+0x0/0x14 Fix it by letting machine_halt() call machine_power_off() which doesn't return. Signed-off-by: Helge Deller <deller@gmx.de>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.