diff options
| author | Huacai Chen <chenhc@lemote.com> | 2015-06-04 08:53:47 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-06-06 10:21:10 +0200 |
| commit | e1fb96e064e7157920f043f40ae801a5c18e57da (patch) | |
| tree | 86df4259ada205a7cf700ca0ed3a70486e262697 /arch/mips/kvm | |
| parent | MIPS: Fix enabling of DEBUG_STACKOVERFLOW (diff) | |
| download | linux-e1fb96e064e7157920f043f40ae801a5c18e57da.tar.xz linux-e1fb96e064e7157920f043f40ae801a5c18e57da.zip | |
MIPS: Loongson-3: Fix a cpu-hotplug issue in loongson3_ipi_interrupt()
setup_per_cpu_areas() only setup __per_cpu_offset[] for each possible
cpu, but loongson_sysconf.nr_cpus can be greater than possible cpus
(due to reserved_cpus_mask). So in loongson3_ipi_interrupt(), percpu
access will touch the original varible in .data..percpu section which
has been freed. Without this patch, cpu-hotplug will cause memery
corruption.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/10524/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kvm')
0 files changed, 0 insertions, 0 deletions