Linear equation

I have a linear equation which Maxima cannot solve.  Any ideas?

(%i1) zero3 : eibe * %e ^ ( %i * phi ) * rho * s + %e ^ ( 2 * %i * phi + 2 *
%i * %pi *
  m + %i * al ) * r * rho ^ 2 + 2 * %e ^ ( %i * %pi * m ) * r * rho + %e ^ (
2 * %i
  * phi + 2 * %i * %pi * m + %i * al ) * r;

(%o1)
eibe*%e^(%i*phi)*rho*s+%e^(2*%i*phi+2*%i*%pi*m+%i*al)*r*rho^2+2*%e^(%i*%pi*m
)*r*rho+%e^(2*%i*phi+2*%i*%pi*m+%i*al)*r

(%i2) solve( %, eibe );

Maxima encountered a Lisp error: Error in PROGN [or a callee]: Bind stack
overflow.Automatically continuing.To reenable the Lisp debugger set
*debugger-hook* to nil.

(%i3)