From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lyndon Nerenberg Content-Type: multipart/signed; boundary="Apple-Mail=_7642C792-5222-4950-890F-E28016B02B11"; protocol="application/pgp-signature"; micalg=pgp-sha1 Message-Id: <05B9A9E7-83BA-4EBE-AC4F-22F414ABB5A5@orthanc.ca> Date: Mon, 26 May 2014 16:14:36 -0700 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.2\)) Subject: [9fans] Too many checkpages() diagnostics ... Topicbox-Message-UUID: f1692abc-ead8-11e9-9d60-3106f5b1d025 --Apple-Mail=_7642C792-5222-4950-890F-E28016B02B11 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii For the last couple of days I have been plagued by many many diagnostics = from checkpages(), in conjunction with things like: rc: note: sys: trap: fault read addr=3D0x0 pc=3D0x000101c4 rc 50675: suicide: sys: trap: fault read addr=3D0x0 pc=3D0x000101c4 The kernel print buffer holds corresponding entries like: coral# 10618 dns: checked 136 page table entries dns 10618: suicide: sys: trap: fault write addr=3D0x0 pc=3D0x00015cea 26591 rfcmirror: checked 270 page table entries 37326 rc: checked 51 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 47773 rc: checked 57 page table entries 50675 rc: checked 53 page table entries coral# rm '#s/dns' coral# ndb/dns -r coral# 55270 rfcmirror: checked 146 page table entries 55270 rfcmirror: checked 146 page table entries 66218 rfcmirror: checked 146 page table entries 70615 rfcmirror: checked 62 page table entries 70615 rfcmirror: checked 62 page table entries 70644 tcp567: checked 39 page table entries 70644 tcp567: checked 39 page table entries 71354 rfcmirror: checked 46 page table entries 71354 rfcmirror: checked 46 page table entries Yes, these were two different events. These just happened to be what I = captured for later reference. Three events, really; the 'rc' complaints = are from me running 'mk' in various source trees. I have always seen these 'checked nnn page table entries' messages, but = for the last couple of days they are everywhere. And processes are = failing hand-over-fist. Forking processes in rc seems to be a sure-fire = way to provoke this. I cannot get through a 'mk' of any significant = piece of software, and /n/sources/contrib/lyndon/rfcmirror is very good = at borking things, too. Is anyone else seeing this? I'm running bleeding edge labs code, = compiled from a pull from this afternoon. (And I have been running very = up-to-date labs pulls all the way along.) This is all running in a Parallels VM on a Mac, the same VM I have been = using as a terminal for several years. What changed was switching over = to a CPU kernel. The VM has 1GB of RAM now, but was quite happy running = 9pcf (vs 9pccpuf now) in 256 MB, and that terminal kernel ran the same = suite of commands just fine. (This is objtype=3D386.) --lyndon --Apple-Mail=_7642C792-5222-4950-890F-E28016B02B11 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- iQIcBAEBAgAGBQJTg8rcAAoJEG8PnXiV/JnU8/AQAILtZXjhKsozf9LppSl5Y9ob mhYt5o6e0Z2212dCBh8+qSZWu0PMd+pQ5PWu/vyvB17l8PCZCJ5l3KVl18RdDl2C 5wIWSU5zuO8LFh4U2IvQBGfZdZ54xWykLsHvM5JDQ85mzqmwxEMyjvn8Wqhfl00L wJZ1otk5yClMKzRuZbWboiffgYI1zNYO9z9nYOxj7ATXssyuL6q3s51uBXcO2i6z LgPxrjqwPPINt3xawXDNpO8+DBTF/N2aigtS2Ak0G1nnBx5apgnXvZCmssohXxL5 7BRYifh9UOrrlfKjingu5N2PedQMUdB9chs4YZIV3AxQWlrWZPtxe0EfQmLAtZDV vHlUizhY65j3aYvFhFRY90n8YNIiN4Vlj+y5EQIijZ+VY6YlUj+h6Cjccru/jZyS 3KGdxTX/6/ek6CBm7iZtxNAyKa1LuYA7zGdOlboPNh0MJnz4qkCMrc6wu/VZ0QhS XVYfStpSRDfMOUkUOkU13y6veGvpPQD/nCpkEiPy5znDkbDrmIGUE9Yuq9gSlMMg UScaz8HcC5Mdj1cpwNgyU4wfXs10cbd3+yso3+laDcNtQVlg0q/SHhIpF3z//Xeb u2D/fwRaauMih+1XSPgZaPu7SqqFa1OGimkrt7ibN6KVDiYxgp8ZHlqWKGjljq8p 8p1stS38QwfB+UEZOUa6 =NQfn -----END PGP SIGNATURE----- --Apple-Mail=_7642C792-5222-4950-890F-E28016B02B11--