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Subject: Re: svn commit: r286223 -
 head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
To: Konstantin Belousov <kostikbel@gmail.com>,
 Steven Hartland <steven@multiplay.co.uk>
References: <201508030934.t739YAkT026668@repo.freebsd.org>
 <20150803094730.GA24698@zxy.spb.ru> <55BF431E.3020601@freebsd.org>
 <2757800.HIDNx1G49O@overcee.wemm.org> <20150803111942.GB2072@kib.kiev.ua>
 <55BF557B.60009@multiplay.co.uk> <20150803120359.GC2072@kib.kiev.ua>
Cc: Peter Wemm <peter@wemm.org>, svn-src-all@freebsd.org,
 Slawa Olhovchenkov <slw@zxy.spb.ru>, svn-src-head@freebsd.org,
 src-committers@freebsd.org
From: Julian Elischer <julian@freebsd.org>
Message-ID: <55BFC296.5050402@freebsd.org>
Date: Tue, 4 Aug 2015 03:35:50 +0800
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On 8/3/15 8:03 PM, Konstantin Belousov wrote:
> On Mon, Aug 03, 2015 at 12:50:19PM +0100, Steven Hartland wrote:
>> For this change I don't want to get into fixing the thread0 stack size,
>> which can be done later, just
>> to provide a reasonable warning to the user that smaller values could
>> cause a panic.
> Hmm, is it limited to the thread0 only ?  I.e., would only increasing
> the initial thread stack size be enough to boot the kernel ?  The zfs
> threads do request larger stack size, I know this.
>
> Can somebody test the following patch in the i386 configuration which
> does not boot ?

I think this is a reasonable thing to do. Thread0 (and proc0) are special.
I don't see why giving it a specially sized stack would be a problem.