Date: Sat, 11 Apr 2015 08:14:27 +0000 From: Ulrich Grey <usenet@ulrich-grey.de> To: Ian Lepore <ian@freebsd.org> Cc: freebsd-hackers <freebsd-hackers@freebsd.org>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: pmap_demote_section: No l2_bucket for wired mapping panic Message-ID: <20150411081427.2f4fc14feb08cee948734d66@ulrich-grey.de> In-Reply-To: <1428718809.1182.31.camel@freebsd.org> References: <CAGf2gkObDLv1-hWV=TmDOYuDr4FZTnpkZaKXxvBZxiqix4kHvg@mail.gmail.com> <CAFHCsPUrzm=UkGe_0gvzOmVTTxLPT=as5N-=zWJxKeJKfaUVvg@mail.gmail.com> <CAGf2gkOG_xGCXY5VyEWLq-rMM6iN_A2=6%2BDftAMa63MLcTX00Q@mail.gmail.com> <1428718809.1182.31.camel@freebsd.org>
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This kernel is running ARM_NEW_PMAP: root@wqtest:/usr/home/gwgpi # sysctl vm.pmap. vm.pmap.pv_entry_spare: 10379 vm.pmap.pv_entry_allocs: 1486593921 vm.pmap.pv_entry_frees: 1486577084 vm.pmap.pc_chunk_tryfail: 0 vm.pmap.pc_chunk_frees: 5598313 vm.pmap.pc_chunk_allocs: 5598394 vm.pmap.pc_chunk_count: 81 vm.pmap.pv_entry_count: 16837 vm.pmap.pte1.promotions: 3530 vm.pmap.pte1.p_failures: 20352 vm.pmap.pte1.mappings: 721715 vm.pmap.pte1.demotions: 508 vm.pmap.sp_enabled: 1 vm.pmap.nkpt2pg: 32 vm.pmap.shpgperproc: 200 vm.pmap.pv_entry_max: 1745184 root@wqtest:/usr/home/gwgpi # ---------------------------------- On Fri, 10 Apr 2015 20:20:09 -0600 Ian Lepore <ian@freebsd.org> wrote: > Reply at the bottom, where it belongs. > > On Sat, 2015-04-11 at 06:58 +0530, Pratik Singhal wrote: > > I have double checked everything, recompiled kernel from scratch imade sure > > that I ncluded the line "options ARM_NEW_PMAP" in the kernel configuration > > file and I am still getting the same panic. > > > > Is there something at runtime that I can do to make sure that the kernel I > > am running is compiled with ARM_NEW_PMAP ? > > > > > > > > On Sat, Apr 11, 2015 at 4:31 AM, Svatopluk Kraus <onwahe@gmail.com> wrote: > > > > > The point of ARM_NEW_PMAP option is that there are no l2_buckets in > > > new armv6 pmap. So, as long as you get same panic, you are not running > > > kernel compiled with ARM_NEW_PMAP option. > > > > > > Svatopluk Kraus > > > > > > > [...] > > > > > > From the announcement of the ARM_NEW_PMAP option... > > If you need to check whether the new or old code is running on a > system, use "sysctl vm.pmap.pte1.promotions", if that gives an > "unknown oid" error you're running the old code. > > Other evidence: > > revolution > grep l2_bucket pmap-v6-new.c > revolution > > > You can't be getting a panic about l2_bucket stuff from code that > doesn't have anything in it about l2 buckets. Something must have gone > wrong with the way you built and installed the new kernel. > > -- Ian > > > _______________________________________________ > freebsd-arm@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
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