From: Wolfram Joost Subject: [PATCH] fork_cacheflush On ASUS WL-500gP there are many unexpected "Segmentation fault"s that seem to be caused by a kernel. They can be avoided by: 1) Disabling highpage 2) Using flush_cache_mm in flush_cache_dup_mm For details see OpenWrt ticket #2035 https://dev.openwrt.org/ticket/2035 --- --- a/arch/mips/include/asm/cacheflush.h +++ b/arch/mips/include/asm/cacheflush.h @@ -46,7 +46,7 @@ extern void (*flush_cache_all)(void); extern void (*__flush_cache_all)(void); extern void (*flush_cache_mm)(struct mm_struct *mm); -#define flush_cache_dup_mm(mm) do { (void) (mm); } while (0) +#define flush_cache_dup_mm(mm) flush_cache_mm(mm) extern void (*flush_cache_range)(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); e='this.form.submit();'> [no description]
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