I guess FLOPS causes the -177. After I removed FLOPS its working again. Ah those estimates ... a pain in the ass!
Yes, the rsc_fpops_bound divided by flops is the amount of time BOINC will let the task run before killing it, the bound is 10 times the estimate which under normal circumstances is more than adequate.
An alternative to removing flops would be to use
Fred M's new rescheduler. It can push all the bound values up and thereby cure the -177 errors. I don't remember the details exactly, but if you check "Limit rsc_fpops_bound" on the Expert tab, then click the Test button, it will fix those bounds without actually rescheduling any tasks. What I'm not sure about is whether there's another step like maybe manually copying the client_state.xml produced by the test back into the BOINC data directory or such.
Joe