Hi! As reported in http://bugzilla.redhat.com/533063 , preadv/pwritev prototypes are wrong on 32-bit arches with -D_FILE_OFFSET_BITS=64 and as I've just found, fallocate is wrong too. The problem is that only off_t is remapped to the 64-bit type transparently, __off_t is not. Fixed thusly. 2009-11-04 Jakub Jelinek <jakub@redhat.com> * misc/sys/uio.h (preadv, pwritev): Fix type of last argument when -D_FILE_OFFSET_BITS=64. * sysdeps/unix/sysv/linux/ia64/bits/fcntl.h (fallocate): Fix types of last two arguments when -D_FILE_OFFSET_BITS=64. * sysdeps/unix/sysv/linux/i386/bits/fcntl.h (fallocate): Likewise. * sysdeps/unix/sysv/linux/s390/bits/fcntl.h (fallocate): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h (fallocate): Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h (fallocate): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/fcntl.h (fallocate): Likewise. * sysdeps/unix/sysv/linux/sh/bits/fcntl.h (fallocate): Likewise. --- libc/misc/sys/uio.h.jj 2009-05-16 19:23:36.000000000 +0200 +++ libc/misc/sys/uio.h 2009-11-04 22:40:37.000000000 +0100 @@ -80,10 +80,10 @@ extern ssize_t pwritev (int __fd, __cons # else # ifdef __REDIRECT extern ssize_t __REDIRECT (preadv, (int __fd, __const struct iovec *__iovec, - int __count, __off_t __offset), + int __count, __off64_t __offset), preadv64) __wur; extern ssize_t __REDIRECT (pwritev, (int __fd, __const struct iovec *__iovec, - int __count, __off_t __offset), + int __count, __off64_t __offset), pwritev64) __wur; # else # define preadv preadv64 --- libc/sysdeps/unix/sysv/linux/ia64/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/ia64/bits/fcntl.h 2009-11-04 22:43:43.000000000 +0100 @@ -253,8 +253,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 --- libc/sysdeps/unix/sysv/linux/i386/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/i386/bits/fcntl.h 2009-11-04 22:43:54.000000000 +0100 @@ -259,8 +259,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 --- libc/sysdeps/unix/sysv/linux/s390/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/s390/bits/fcntl.h 2009-11-04 22:44:06.000000000 +0100 @@ -279,8 +279,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 --- libc/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h 2009-11-04 22:44:23.000000000 +0100 @@ -259,8 +259,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 --- libc/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h 2009-11-04 22:44:31.000000000 +0100 @@ -273,8 +273,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 --- libc/sysdeps/unix/sysv/linux/sparc/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/sparc/bits/fcntl.h 2009-11-04 22:44:38.000000000 +0100 @@ -278,8 +278,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 --- libc/sysdeps/unix/sysv/linux/sh/bits/fcntl.h.jj 2009-11-02 13:54:31.000000000 +0100 +++ libc/sysdeps/unix/sysv/linux/sh/bits/fcntl.h 2009-11-04 22:44:47.000000000 +0100 @@ -259,8 +259,8 @@ extern ssize_t tee (int __fdin, int __fd extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); # else # ifdef __REDIRECT -extern int __REDIRECT (fallocate, (int __fd, int __mode, __off_t __offset, - __off_t __len), +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), fallocate64); # else # define fallocate fallocate64 Jakub