On Mon, Nov 02, 2009 at 12:26:28PM +0000, Faye Gibbins wrote: > We have an ongoing issue with our automounter freezing and refusing to > mount more nfs shares. > > Apart from setting up a system with automounter running under strace > with a client hitting it I'm not sure where to go with this problem > (attaching strace to a frozen autofs has not helped).
(maybe you can attach gdb to the frozen autofs) I had some luck with strace in the past - had frozen automount, turned out to be gethostbyname() (DNS lookup) stuck inside the NIS library. (What? DNS lookup stuck inside NIS? Turns out the system-config-auth configures it that way (in /etc/nsswitch.conf) if you enable NIS. Took NIS out, problem went away.) So you never know, with strace, sometimes you get lucky and catch something simple like that. -- Konstantin Olchanski Data Acquisition Systems: The Bytes Must Flow! Email: olchansk-at-triumf-dot-ca Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
