In message <
, Ngie Cooper writes:
> On Fri, May 5, 2017 at 4:43 PM, Cy Schubert <> wrote:
> ...
> > You have a bad DIMM. I had this same problem on my laptop but not on my
> > servers downstairs. That suggested that since all four machines were
> > running the same software the difference between them was hardware.
> > Replacing the memory in my laptop made this problem go away.
> >
> > I have a question for you. Do you use ZFS? ZFS exercises memory quite
> > aggressively. I also had this problem when I replaced my UFS filesystems
> > with ZFS on my testbed many moons ago. It even suffered random kernel
> > panics. Here again, replacing the memory resolved the issue.
> We need more information first before saying "bad hardware" -- in
> particular, was the machine overtaxed, were the input files proper,
> etc?
> I'm asking because clang has a number of bugs in bugzilla where the
> host ran out of memory trying to compile things and clang didn't fail
> gracefully when allocating memory, handling inputs, etc.

Running out of memory (physical RAM + swap) would invoke OOM. That would 
result in the process receiving SIGKILL not SIGSEGV.

Per process limits? Possible.

Cy Schubert <>
FreeBSD UNIX:  <>   Web:

        The need of the many outweighs the greed of the few.

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