Timothe Litt wrote on Thu, Dec 01, 2022 at 04:14:42PM -0500: > The attached "hardlink_strace.txt" comes from a simplified command to reduce > volume, but it should show the same syscalls: > > ( cd / && strace 2>hardlink_strace.txt tar -cf - bin/awk bin/bash > >/dev/null )
The fstatat64 structs returned from bin/awk and bin/bash are truncated, could you provide the same strace with '-v' ? It's obvious the files are different as st_size is different and corresponds to the ls, but it'd be better to make sure. > Finally, an unrelated (except that it hit this incident and prevented an easy > restore) issue: *tar skips some large files with* > > |tar: root/sd/sd.tar.gz: Cannot stat: Value too large for defined data type| > |-rw-r--r-- 1 root root 32251081571 May 6 2007 /root/sd/sd.tar.gz| This depends on the libc but you need to build with large file support. -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 was it? (the kernel has fstatat64 so it should be recent enough, but libc might be too old, I didn't check since when these exist.) -- Dominique
