Hello Yair, Yair Yarom: > We have here diskless machines with aufsed /etc (rw tmpfs /etc_rw + ro > root /etc on /etc). When trying to run sungrid's qmaster daemon, we get > an oops. Without the aufsed /etc there's no oops (even when there are > other aufsed directories). > > The kernel is 2.6.33.3 with aufs standalone from git (origin/aufs2, as > there doesn't seem to be origin/aufs2-33). I'm unfamiliar with git, so I > haven't managed to get the current git version. On boot it prints: aufs > 2-standalone.tree-20100301
At first, you should update your git tree and use the latest aufs2-33. Try, $ cd /your/aufs2-standalone.git $ git checkout master $ git pull $ git checkout aufs2-33 Since your stacktrace doesn't contain any aufs functions, I don't know what is wrong currently. But there may be something wrong in aufs mmap as you wrote. Actually I made some changes around aufs mmap a few weeks ago. If your prolem is known, you just need to upgrade the aufs version. If the problem still exist, please "strace -f -o /tmp/s sge_qmaster" and send me /tmp/s. I need to know how mmap was issued. According to your /proc/mounts, both of /etc and /etc_rw seem to be tmpfs. Are you sure that your _lower_ is nfs? And can I read the source file of sge_qmaster? J. R. Okajima ------------------------------------------------------------------------------
