Date: Thu, 10 Feb 2022 14:28:50 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: "freebsd-questions@freebsd.org" <questions@freebsd.org> Subject: swap/page problem Message-ID: <CAN6yY1s%2BC3ap7rvajujiTqGwQVgkZrHRh6eHnTGHgTsVrfjPcg@mail.gmail.com>
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--000000000000e744df05d7b17aab Content-Type: text/plain; charset="UTF-8" During a large build (llvm13), my system ground to a near halt with almost everything suspended. After several minutes, the system slowly recovered. When I looked at the messages log, I found 57 kernel messages spread over 3.75 hours, in the form of: wap_pager: indefinite wait buffer: bufobj: 0, blkno: 862845, size: 20480 The block numbers and sizes varied. bufobj was always '0'. I had significant swap available swap space,as far as I could tell. I have 20GB of RAM and 24GB of swap. I am running stable 48937-3c6b6246f2f from January 13. I know that the LLVM build is huge, but I've not seen this before. What, exactly, is this message telling me? Am I out of RAM and swap? I couldd add another 24GB of swap, though it would be on spinning rust, not SSD. Thanks! -- Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkoberman@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 --000000000000e744df05d7b17aab Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:tahoma,s= ans-serif;font-size:small">During a large build (llvm13), my system ground = to a near halt with almost everything suspended. After several minutes, the= system slowly recovered. When I looked at the messages log, I found 57 ker= nel messages spread over 3.75 hours, in the form of:<br clear=3D"all"></div= ><div>wap_pager: indefinite wait buffer: bufobj: 0, blkno: 862845, size: 20= 480</div><div><br></div><div><div style=3D"font-family:tahoma,sans-serif;fo= nt-size:small" class=3D"gmail_default">The block numbers and sizes varied. = bufobj was always '0'. I had significant swap available swap space,= as far as I could tell. I have 20GB of RAM and 24GB of swap. I am running s= table 48937-3c6b6246f2f from January 13.<br></div><div style=3D"font-family= :tahoma,sans-serif;font-size:small" class=3D"gmail_default"><br></div><div = style=3D"font-family:tahoma,sans-serif;font-size:small" class=3D"gmail_defa= ult">I know that the LLVM build is huge, but I've not seen this before.= What, exactly, is this message telling me? Am I out of RAM and swap? I cou= ldd add another 24GB of swap, though it would be on spinning rust, not SSD.= <br></div><div style=3D"font-family:tahoma,sans-serif;font-size:small" clas= s=3D"gmail_default"><br></div><div style=3D"font-family:tahoma,sans-serif;f= ont-size:small" class=3D"gmail_default">Thanks!<br></div></div>-- <br><div = dir=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><d= iv dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D= "ltr">Kevin Oberman, Part time kid herder and retired Network Engineer<br>E= -mail: <a href=3D"mailto:rkoberman@gmail.com" target=3D"_blank">rkoberman@g= mail.com</a><br></div><div>PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39E= F1B055683</div></div></div></div></div></div></div></div></div> --000000000000e744df05d7b17aab--
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