diff options
Diffstat (limited to 'tests/dd')
| -rwxr-xr-x | tests/dd/no-allocate.sh | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/tests/dd/no-allocate.sh b/tests/dd/no-allocate.sh index 99e0542ac..d122e3544 100755 --- a/tests/dd/no-allocate.sh +++ b/tests/dd/no-allocate.sh @@ -18,12 +18,17 @@ . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src print_ver_ dd -require_ulimit_v_ + +# Determine basic amount of memory needed. +echo . > f || framework_failure_ +vm=$(get_min_ulimit_v_ dd if=f of=f2 status=none) \ + || skip_ "this shell lacks ulimit support" +rm -f f || framework_failure_ # count and skip are zero, we don't need to allocate memory -(ulimit -v 20000; dd bs=30M count=0) || fail=1 -(ulimit -v 20000; dd ibs=30M count=0) || fail=1 -(ulimit -v 20000; dd obs=30M count=0) || fail=1 +(ulimit -v $vm && dd bs=30M count=0) || fail=1 +(ulimit -v $vm && dd ibs=30M count=0) || fail=1 +(ulimit -v $vm && dd obs=30M count=0) || fail=1 check_dd_seek_alloc() { local file="$1" @@ -38,7 +43,8 @@ check_dd_seek_alloc() { timeout 10 dd count=1 if=/dev/zero of=tape& # Allocate buffer and read from the "tape" - (ulimit -v 20000; timeout 10 dd $dd_buf=30M $dd_op=1 count=0 $dd_file=tape) + (ulimit -v $(($vm+4000)) \ + && timeout 10 dd $dd_buf=30M $dd_op=1 count=0 $dd_file=tape) local ret=$? # Be defensive in case the tape reader is blocked for some reason |