Some architectures define PHYS_PFN_OFFSET to be != 0 (ARM for example). This means that mem_map[0] is actually first page in kernel direct mapped view (which is a valid page).
Change invalid pfn to be ULONGLONG_MAX instead of 0 to handle such cases. Signed-off-by: Mika Westerberg <[email protected]> --- makedumpfile.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/makedumpfile.c b/makedumpfile.c index a33bab6..89360bd 100644 --- a/makedumpfile.c +++ b/makedumpfile.c @@ -4383,7 +4383,8 @@ unsigned long long page_to_pfn(unsigned long page) { unsigned int num; - unsigned long long pfn = 0, index = 0; + unsigned long long pfn = ULONGLONG_MAX; + unsigned long long index = 0; struct mem_map_data *mmd; mmd = info->mem_map_data; @@ -4398,7 +4399,7 @@ page_to_pfn(unsigned long page) pfn = mmd->pfn_start + index; break; } - if (!pfn) { + if (pfn == ULONGLONG_MAX) { ERRMSG("Can't convert the address of page descriptor (%lx) to pfn.\n", page); return ULONGLONG_MAX; } -- 1.5.6.5 _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
