ab31c7fd2d
Qian Cai reported a boot crash on arm64 systems, caused by:0fb3978b0a("sched/numa: Fix NUMA topology for systems with CPU-less nodes") The bug is that node_state() must be supplied a valid node_states[] array index, but in task_numa_placement() the max_nid search can fail with NUMA_NO_NODE, which is not a valid index. Fix it by checking that max_nid is a valid index. [ mingo: Added changelog. ] Fixes:0fb3978b0a("sched/numa: Fix NUMA topology for systems with CPU-less nodes") Reported-by: Qian Cai <quic_qiancai@quicinc.com> Tested-by: Qian Cai <quic_qiancai@quicinc.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Huang, Ying" <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@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.