Hi, Weird problem, when I build app from source, make; make install run the command, but got "cannot execute binary file" hexdump shows the installed binary is full of zero Is it related to ext4 fiemap problem described below? http://lwn.net/Articles/429349/ I finally managed to find the way to reproduce this: just cp a elf binary A to file B, then cp B to file C, then you will get: A == B != C ie. cp /bin/ls ls1 cp ls1 ls2 ls2 will be filled with zero Below is a strace log of install, kernel version is 3.1.0-rc6+ geteuid() = 0 umask(0) = 022 stat("/tmp/vpnc", 0x7fff85363710) = -1 ENOENT (No such file or directory) stat("vpnc", {st_mode=S_IFREG|0755, st_size=368662, ...}) = 0 lstat("/tmp/vpnc", 0x7fff85363250) = -1 ENOENT (No such file or directory) open("vpnc", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0755, st_size=368662, ...}) = 0 open("/tmp/vpnc", O_WRONLY|O_CREAT|O_EXCL, 0755) = 4 fstat(4, {st_mode=S_IFREG|0755, st_size=0, ...}) = 0 uname({sys="Linux", node="darkstar", ...}) = 0 ioctl(3, FS_IOC_FIEMAP, 0x7fff85361f60) = 0 ftruncate(4, 368662) = 0 fsetxattr(4, "system.posix_acl_access", "\x02\x00\x00\x00\x01\x00\x06\x00\xff\xff\xff\xff\x04\x00\x00\x00\xff\xff\xff\xff \x00\x00\x00\xff\xff\xff\xff", 28, 0) = 0 close(4) = 0 close(3) = 0 chmod("/tmp/vpnc", 0755) = 0 close(0) = 0 close(1) = 0 close(2) = 0 exit_group(0) = ? -- Regards Dave -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
