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Date: Wed, 7 Mar 2018 00:22:39 +0100
From: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>
To: Eugene Grosbein <eugen@grosbein.net>
Cc: Juli Mallett <juli@northcloak.com>, John Baldwin <jhb@freebsd.org>,
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Subject: Re: ELF - panic on installworld
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* Eugene Grosbein <eugen@grosbein.net> [180306 22:48]:
> 07.03.2018 3:14, Juli Mallett wrote:

>> That said, we could easily use a more flexible wired TLB entry scheme,
>> including smartly using pagemask in the cases where the number of pages is
>> suitable.  If we wanted to allow wiring of mappings into the TLB flexibly
>> at runtime we could do that, or we could just at compile-time have
>> different code to handle different KSTACK_PAGES values.  People have strong
>> feelings about some of those options, but if there's a workload-oriented
>> pressure to move in a different direction, it should be very easy to do.

> I cannot understand what "feelings" may exist about kernel stack shortage leading to panics.

People being people, they have feelings about everything, no matter if
that is logical or not. So it is better to be prepared for it.