Date: Tue, 17 Mar 2009 00:28:33 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-current@freebsd.org Subject: A trio of problems Message-ID: <gpmnba$3na$1@ger.gmane.org>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigE99F8D077A6CE111870906F3 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi, 1. I'm trying to start 1000 jails for demonstration purposes (a presentation), but I can reliably panic the kernel when somewhere between 400 and 600 jails are started. The panic is not always of the same type nor at the same place in code, and the number of created jails also varies. I'm using ZFS for the jails directory and have about 10 nullfs-mounted UFS directories per jail. I'm not sure this is ZFS's fault but will test with UFS-only soon. I don't have coredumps (because of 2.) but I have some photos here: http://ivoras.sharanet.org/stuff/panic/ - the first 3 images are from one panic, the next two from the next one, the last for the 2nd problem. 2. I can't set a kernel coredump directory. The setup is not unusual (no gmirror, etc.) - simply partitions handled by GPART. The error is in ioctl(DIOCSKERNELDUMP): Device not configured. The only thing that comes to my mind is that the swap device is 2 GB while the machine has 4 GB RAM but AFAIK minidumps should work? If I can get coredumps to work I could provide more information on the first problem. 3. Turning Scroll-lock on (for the purpose of taking the last photo) before the login prompt (getty) is started makes the console wedge after the Scroll-lock is released. No input or output is processed though some keys work (Scroll-lock is one of them). For the first problem, I can share the script that generates the jails, if anyone wants it. All this is on 8-CURRENT from today. Kernel and world are in sync. --------------enigE99F8D077A6CE111870906F3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkm+4KkACgkQldnAQVacBchKCwCbB8afYz3SiCZQDBw7M0B2976u gnoAoPXaHPylhH2UBFgqndb5YgmDPvPX =F53y -----END PGP SIGNATURE----- --------------enigE99F8D077A6CE111870906F3--
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