When kdump tries to map the program header, it fails to take account of ehdr->e_phoff being an offset from the start of the ELF "file", which causes: Cannot mmap /dev/mem offset: 64 size: 392: Invalid argument Ensure that we take account of the start address when mapping this. This fix has been extracted from a larger patch by Vitaly Andrianov adding support for Keystone 2. Signed-off-by: Russell King <rmk at arm.linux.org.uk> --- kdump/kdump.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kdump/kdump.c b/kdump/kdump.c index 1f5b984..34d2149 100644 --- a/kdump/kdump.c +++ b/kdump/kdump.c @@ -284,7 +284,8 @@ int main(int argc, char **argv) } /* Get the program header */ - phdr = map_addr(fd, sizeof(*phdr)*(ehdr->e_phnum), ehdr->e_phoff); + phdr = map_addr(fd, sizeof(*phdr)*(ehdr->e_phnum), + start_addr + ehdr->e_phoff); /* Collect up the notes */ note_bytes = 0; -- 1.9.1
