Hi Dave, On Fri, 2010-02-26 at 10:42 -0500, Dave Anderson wrote: > > I tested vanilla 2.6.32, RHEL5, SLES10 and SLES11. > > > > But I found a bug with RHEL4: > > OK good -- I'm glad I asked. I note that RHEL3 doesn't even have > a "panic_stack" member. That being the case, this won't work as > planned: > > stack_addr = ULONG(lc + MEMBER_OFFSET("_lowcore", stack_name)); > if (stack_addr == 0) > return; > > because MEMBER_OFFSET() will return a -1, which will get used as > an offset to add to "lc", and will quietly read the wrong data. > Therefore I do this check before: if (!MEMBER_EXISTS("_lowcore", stack_name)) return; Michael