On 01/11/2012 02:15 PM, Glenn Morris wrote: > Pat Riehecky wrote: > >> A new version of nfs-utils (nfs-utils-1.2.3-15.el6.0.sl6) has been >> posted in the Scientific Linux testing repository. The only >> difference between it and the existing one is an incremented version >> number. If testing verifies it works as expected it may be placed in >> the security tree. > If I upgrade from the (fixed) nfs-utils-1.2.3-15.el6.x86_64 rpm to this > version on otherwise up-to-date SL 6.1 x86_64 systems, the umount.nfs > segfault issue is back: > > umount.nfs[18630]: segfault at 19 ip 00007f605615653a sp 00007fffd63705c0 error 4 in libc-2.12.so[7f60560df000+197000] > > It only seems to occur with NFS mounts served from a RHEL 5.7 x86_64 system. > There is no problem with unmounting mounts served from a RHEL 6.1 x86_64 > NFS system. > > This behaviour persists after a reboot. > > Downgrading back to nfs-utils-1.2.3-15.el6.x86_64 makes the issue go > away again. I don't have any RHEL systems, but I just spun up some SL5.7 systems. I made a 32 and 64 bit system for both 6.1 and 5.7, I then made a read only and read-write nfs share from the 5.7 systems. After mounting it on the 6.1 systems and doing various IO, I unmounted it without producing a segfault. I fear I'm unable to replicate the issue. Pat -- Pat Riehecky Scientific Linux Developer