Date: Tue, 23 Mar 2010 09:47:21 -0700 From: "K. Macy" <kmacy@freebsd.org> To: John Baldwin <jhb@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Ivan Voras <ivoras@freebsd.org> Subject: Re: svn commit: r205487 - head/sys/vm Message-ID: <82c4140e1003230947g2c37357ej6b8f04d94d1d264c@mail.gmail.com> In-Reply-To: <201003230954.00135.jhb@freebsd.org> References: <201003222239.o2MMdWZi061585@svn.freebsd.org> <9bbcef731003230257n17fa2b28i68da4bd2f01abb5c@mail.gmail.com> <82c4140e1003230333p40ad6d6es1f1e08da4148fab3@mail.gmail.com> <201003230954.00135.jhb@freebsd.org>
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On Tue, Mar 23, 2010 at 6:54 AM, John Baldwin <jhb@freebsd.org> wrote: > On Tuesday 23 March 2010 6:33:51 am K. Macy wrote: >> The size change causes the initialization path to change in a way that >> currently causes crashes. > > Are you planning on debugging it further? =A0Does UMA_BOOTPAGES or NKPT n= eed to > be larger? > >> On Mar 23, 2010 2:57 AM, "Ivan Voras" <ivoras@freebsd.org> wrote: >> >> On 22 March 2010 23:39, Kip Macy <kmacy@freebsd.org> wrote: >> > Author: kmacy >> > Date: Mon Mar 22 22:39... >> Does this mean you have determined that aligning these structures is >> not as beneficial on i386 or is there something else going on? >> > > -- > John Baldwin >From a mail I sent to Jeff: This pushes things through keg_large_init (whereas previously it went through keg_small_init) which breaks things on i386. I can workaround the fact that hash_alloc gets called before hashzone is initialized but trying to allocate a slab while during initialization of the slab zone is problematic. Suggestions are welcome. (gdb) bt #0 keg_alloc_slab (keg=3D0xc0ab3000, zone=3D0xc0547c80, wait=3D2) at /usr/home/kmacy/svn_checkouts/head_flowtable/sys/vm/uma_core.c:823 #1 0xc02dbfaf in keg_fetch_slab (keg=3D0xc0ab3000, zone=3D0xc0547c80, flag= s=3D2) at /usr/home/kmacy/svn_checkouts/head_flowtable/sys/vm/uma_core.c:2159 #2 0xc02dc2cc in zone_fetch_slab (zone=3D0xc0547c80, keg=3D0xc0ab3000, fla= gs=3D2) at /usr/home/kmacy/svn_checkouts/head_flowtable/sys/vm/uma_core.c:2219 #3 0xc02db3ab in zone_alloc_item (zone=3D0xc0547c80, udata=3D0xc073cc48, f= lags=3D2) at /usr/home/kmacy/svn_checkouts/head_flowtable/sys/vm/uma_core.c:2475 #4 0xc02db74f in uma_zcreate (name=3D0xc037ef33 "UMA Slabs", size=3D284, ctor=3D0, dtor=3D0, uminit=3D0, fini=3D0, align=3D3, flags=3D536870912) at /usr/home/kmacy/svn_checkouts/head_flowtable/sys/vm/uma_core.c:1827 #5 0xc02dcc6b in uma_startup (bootmem=3D0xc0a64000, boot_pages=3D80)
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