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Subject: Re: ELF - panic on installworld
To: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>, freebsd-mips@freebsd.org
References: <20180305211635.GA21623@lyxys.ka.sub.org>
 <5A9DEE9E.6050906@grosbein.net>
From: Eugene Grosbein <eugen@grosbein.net>
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Date: Tue, 6 Mar 2018 08:37:26 +0700
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06.03.2018 8:27, Eugene Grosbein wrote:

> 06.03.2018 4:16, Wolfgang Zenker wrote:

>> 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?
> 
> Try increasing kernel stack size from default 2 pages to 4 by rebuilding
> the kernel with options KSTACK_PAGES=4

Note also, that depending on your network configuration, KSTACK_PAGES=4
may or may not be enough. If it does not help, you need to double it once more.