Date: Mon, 3 Aug 2015 16:46:29 +0200 From: Fabian Keil <freebsd-listen@fabiankeil.de> To: Konstantin Belousov <kostikbel@gmail.com> Cc: svn-src-all@freebsd.org Subject: Re: svn commit: r286223 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <1032c853.75fe0b19@fabiankeil.de> In-Reply-To: <4b278e01.11dc4bd9@fabiankeil.de> 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> <4b278e01.11dc4bd9@fabiankeil.de>
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--Sig_/s6yaI4Sz9U7Z+FHVDdBD4MO Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Fabian Keil <freebsd-listen@fabiankeil.de> wrote: > Konstantin Belousov <kostikbel@gmail.com> wrote: >=20 > > 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 siz= e,=20 > > > which can be done later, just > > > to provide a reasonable warning to the user that smaller values could= =20 > > > cause a panic. > >=20 > > 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. > >=20 > > Can somebody test the following patch in the i386 configuration which > > does not boot ? >=20 > Will do. With the patch I was able to boot from a three-disk raidz1 pool without having to set KSTACK_PAGES=3D4: # sysctl -a | grep stack kern.usrstack: 3217027072 kern.kstack_pages: 2 kern.features.stack: 1 kern.stackprot: 7 kern.elf32.nxstack: 0 vm.kstacks: 554 vm.kstack_cache_size: 128 security.bsd.stack_guard_page: 1 # zpool status rpool pool: rpool state: ONLINE scan: scrub repaired 0 in 0h3m with 0 errors on Mon Aug 3 16:25:21 2015 config: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 gpt/rpool-ada1.eli ONLINE 0 0 0 gpt/rpool-ada2.eli ONLINE 0 0 0 gpt/rpool-ada3.eli ONLINE 0 0 0 I intend to test a couple of additional configurations tomorrow, but so far this is looking very promising. Fabian --Sig_/s6yaI4Sz9U7Z+FHVDdBD4MO Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlW/fsIACgkQBYqIVf93VJ3mZQCfcL7bl59n+3oCtj7S4utWHAgr 5S0AoMUiE8/iT9jmom2fBtmv0aA/1DxR =DhdD -----END PGP SIGNATURE----- --Sig_/s6yaI4Sz9U7Z+FHVDdBD4MO--
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