Date: Fri, 28 Nov 2014 10:31:07 +0100 From: Svatopluk Kraus <onwahe@gmail.com> To: Ian Lepore <ian@freebsd.org> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Another Test Run with Alternative pmap Implementation Message-ID: <CAFHCsPWL94b5JFL87__MxGfGFrA4q0c3QgPwZf7MGzJ9i6hsaQ@mail.gmail.com> In-Reply-To: <1417108193.1055.2.camel@revolution.hippie.lan> References: <20141113125236.b16cd4e5f0e339eac0494cd4@ulrich-grey.de> <C6FED1A5-490C-47BE-B071-484271ED370E@me.com> <20141115143444.5ad037548e06f289d2532fb7@ulrich-grey.de> <CAFHCsPUJ1HhLqAjitPg6mPzhMYSui64Xmu4omO7Pkp%2B0kPZnAA@mail.gmail.com> <20141119225903.81fbbc7809093a0e6e0de9d5@ulrich-grey.de> <CAFHCsPXnSFY_X-O73M%2Bh0xO_XJ0cTmkRwtu-o4omPndnfbEhmg@mail.gmail.com> <20141120151900.a68c6d8316b96a62cb65d17a@ulrich-grey.de> <CAFHCsPWTnU7j0MC7YSHFFDE97%2B%2BBrnkJKGnK9zkxVGemaa6nAw@mail.gmail.com> <20141121115941.54d4e36b103341c3adf7eb36@ulrich-grey.de> <20141124132733.4e96b906f0d1ab69969dddd9@ulrich-grey.de> <1416840814.1147.380.camel@revolution.hippie.lan> <20141125225451.924a5df4bdb4753db273b8c5@ulrich-grey.de> <CAFHCsPXPEN3U%2B0=AtAJ4dL5g7jGuyW6=u%2B-tbHf3xH1QdJYyhQ@mail.gmail.com> <20141126125806.78f2df97328e807d12746ae3@ulrich-grey.de> <519fde5db60e4fc594956a600c6cad4e@e15be-01.zdv.Uni-Mainz.DE> <1417108193.1055.2.camel@revolution.hippie.lan>
next in thread | previous in thread | raw e-mail | index | archive | help
--047d7b673a84a1ea8b0508e7eb2c Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I think that the pmap_remove_page warning is very likely due to not atomic PCPU_GET(). Can you please try attached patch. Svata On Thu, Nov 27, 2014 at 6:09 PM, Ian Lepore <ian@freebsd.org> wrote: > On Wed, 2014-11-26 at 22:18 +0000, Wei=C3=9F, Dr. J=C3=BCrgen wrote: > > I made a testrun with the updated source tree and the patches for > > the jetson tk1 platform. With > > > > options ARM_NEW_PMAP > > options DEBUG > > options DIAGNOSTIC > > options INVARIANTS # Enable calls of extra sanity > checking > > options INVARIANT_SUPPORT # Extra sanity checks of > internal structures, required by INVARIAN > > > > and no special sysctl settings. > > > > A make -j6 buildworld finishes successfully after 2h15m. There is > > one kernel message > > kernel: warning: pmap_remove_pages called with non-current pmap > > > > /usr/src and /usr/obj over nfs, /tmp on tmpfs > > > > Regards > > That's similar to my results. I changed to -j20 to see if that would > recreate the problems that Ulrich is seeing, but buildworld runs fine > for me, in about 2 hours. I've never seen the non-current pmap warning > on the system that uses a usb ssd drive as root, but I've seen it with > nfs root. > > BTW, the DIAGNOSTIC option adds a LOT of performance overhead to an arm > system without adding a lot of value. I usually leave it off, sometimes > turn it on when I encounter a problem to see if it generates more info > (usually it doesn't). > > -- Ian > > > --047d7b673a84a1ea8b0508e7eb2c Content-Type: application/octet-stream; name="pmap_remove_pages.patch" Content-Disposition: attachment; filename="pmap_remove_pages.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_i31cm8ab0 LS0tIHN5cy9hcm0vYXJtL3BtYXAtdjYtbmV3LmMKKysrIHN5cy9hcm0vYXJtL3BtYXAtdjYtbmV3 LmMKQEAgLTQyODUsNyArNDI4NSw3IEBACiAJdWludDMyX3QgaW51c2UsIGJpdG1hc2s7CiAJYm9v bGVhbl90IGFsbGZyZWU7CgotCWlmIChwbWFwICE9IFBDUFVfR0VUKGN1cnBtYXApKSB7CisJaWYg KHBtYXAgIT0gdm1zcGFjZV9wbWFwKGN1cnRocmVhZC0+dGRfcHJvYy0+cF92bXNwYWNlKSkgewog CQlwcmludGYoIndhcm5pbmc6ICVzIGNhbGxlZCB3aXRoIG5vbi1jdXJyZW50IHBtYXBcbiIsIF9f ZnVuY19fKTsKIAkJcmV0dXJuOwogCX0K --047d7b673a84a1ea8b0508e7eb2c--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAFHCsPWL94b5JFL87__MxGfGFrA4q0c3QgPwZf7MGzJ9i6hsaQ>