ERL (was: ELF - panic on installworld)

[Alexander Kabaev]

On Mon, 5 Mar 2018 22:45:28 +0100
Wolfgang Zenker <wolfgang at lyxys.ka.sub.org> wrote:

> Sorry for the messup in the subject.
> 
> * Wolfgang Zenker <wolfgang at lyxys.ka.sub.org> [180305 22:16]:
> > Hi,
> > 
> > I'm trying to run installworld using 11-STABLE on an Ubiquity Edge
> > Router Lite (mips64, 2 cores, 512 MB Ram). Unfortunately I haven't
> > managed to finish the installworld yet, I always get a
> > panic: kernel stack overflow - trapframe at 0xffffffff80917eb0
> > in slightly different places during the installworld. Of the 4
> > panics I have seen on the serial console, 3 had the trapframe at
> > 0xffffffff80917eb0 and one at 0xffffffff80915eb0
> > /usr/src and /usr/obj are nfs-mounted, and I have configured almost
> > 2 GB of swap. The build was done in a Qemu environment.
> > 
> > Any hints how to proceed from here?
> > 
> > Wolfgang

NFS is is known kernel stack hog. Try increasing KSTACK_PAGES up from
whatever defaults in your kernel config file. IIRC, mips defaults to 2
pages, which is not enough for your workload.

-- 
Alexander Kabaev
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