https://github.com/torvalds/linux
Revision e1fb96e064e7157920f043f40ae801a5c18e57da authored by Huacai Chen on 04 June 2015, 06:53:47 UTC, committed by Ralf Baechle on 06 June 2015, 08:21:10 UTC
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>
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Tip revision: e1fb96e064e7157920f043f40ae801a5c18e57da authored by Huacai Chen on 04 June 2015, 06:53:47 UTC
MIPS: Loongson-3: Fix a cpu-hotplug issue in loongson3_ipi_interrupt()
MIPS: Loongson-3: Fix a cpu-hotplug issue in loongson3_ipi_interrupt()
Tip revision: e1fb96e
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| kernel | ||
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| .gitignore | -rw-r--r-- | 1.2 KB |
| .mailmap | -rw-r--r-- | 4.9 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 94.7 KB |
| Kbuild | -rw-r--r-- | 2.1 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 303.1 KB |
| Makefile | -rw-r--r-- | 53.1 KB |
| README | -rw-r--r-- | 18.2 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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