Jun Sun wrote: > > I don't know how to re-produce this problem yet. It seems a little > non-deterministic. I would appreciate any insight into this problem. The ltp mtest05 test had a bug in which it would remove /dev/zero when it cleaned up. Have you got an updated ltp suite? This is the fix that they did in late March to the mtest05 test. /ltp/ltp/testcases/kernel/mem/mtest05/mmstress.c:246 - if (strcmp(filename, "NULL") || strcmp(filename, "/dev/zero")) + if (strcmp(filename, "NULL") && strcmp(filename, "/dev/zero")) I suppose that there may be other LTP tests that could have similar bugs... Cheers Liam