On the system where the test failed (fedora 43/rawhide): # yes 12345 | head -n 50000 > in # strace -o out -- grep -q --help >/dev/full grep: write error: No space left on device
write(1, "Usage: grep [OPTION]... PATTERNS"..., 4068) = -1 ENOSPC (No space left on device) It's the system grep 3.11. With the 3.12 build from the sources: # yes 12345 | head -n 50000 > in # strace -o out -- ./grep -q --help >/dev/full ./grep: write error write(1, "Usage: grep [OPTION]... PATTERNS"..., 4096) = -1 ENOSPC (No space left on device) It's compiled the same way as the 3.11 was except the 3.11 build used the 'autoreconf -fi' which was dropped, because autoreconf fails now probably due to version incompatibility: configure:9031: error: possibly undefined macro: gl_ANYTHREADLIB_EARLY If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. autoconf-2.72 Jaroslav On Mon, Apr 14, 2025 at 9:32 PM Jim Meyering <j...@meyering.net> wrote: > > On Mon, Apr 14, 2025 at 5:56 AM Jaroslav Škarvada via Bug reports for > GNU grep <bug-grep@gnu.org> wrote: > > test log is attached > > Hi Jaroslav, > Thanks for testing! > > The test that's failing is ensuring that a disk-full write failure > elicits a diagnostic like this: > grep: write error: No space left on device > > On your system, it prints only this: > grep: write error > > Can you run the following and share the strace output file, "out"? > yes 12345 | head -n 50000 > in > strace -o out -- grep -q --help >/dev/full > > We expect the first write to fail like this: > write(1, "Usage: grep [OPTION]... PATTERNS"..., 4096) = -1 ENOSPC > (No space left on device) >