Date: Mon, 20 Sep 2004 11:00:38 +0100 From: Nik Clayton <nik@freebsd.org> To: current@freebsd.org Subject: Brief freezes with -current as of early last week Message-ID: <20040920100038.GA30307@clan.nothing-going-on.org>
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--zYM0uCDKw75PZbzx Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable After updating from -current built on 2004/04/27 to -current built on 2004/09/13, I'm seeing some annoying 'freezes'. I'd not seen these with the earlier -current. To complicate matters, right around the time I did the update I also switched from a configuration with two SCSI disks and an IDE disk, to a configuration with two IDE disks (each SCSI disk, bought at the same time, from the same supplier, died within 4 days of each other -- sheesh). So, I guess what I might be seeing is plain old I/O contention -- although I'm surprised that it freezes the box. According to 'atacontrol mode 0', both IDE devices are using UDMA100, which is the maximum the motherboard (dual 1GHz PIII) supports). The symptoms typically manifest themselves right after kicking off a portupgrade command. The system will (sort-of) freeze. If I'm in X, the mouse cursor stops responding, there's no response to the keyboard. However, if I happen to have top(1) running in an xterm, the top(1) display keeps updating. This lasts (wall-clock) 10 to 15 seconds, and then the system becomes responsive again. I'm running a kernel built with SCHED_4BSD. INVARIANTS, INVARIANTS_SUPPORT, WITNESS, and WITNESS_SKIPSPIN are all commented out. I don't have an /etc/malloc.conf symlink, so I'm using whatever the -current defaults are (as a side note, where are those defaults documented?) Any thoughts, or recommendations to help tracking this down greatly appreciated. N --=20 FreeBSD: The Power to Serve http://www.freebsd.org/ (__) FreeBSD Documentation Project http://www.freebsd.org/docproj/ \\\'',) \/ \= ^ --- 15B8 3FFC DDB4 34B0 AA5F 94B7 93A8 0764 2C37 E375 --- .\._/= _) --zYM0uCDKw75PZbzx Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBTqpFk6gHZCw343URAp4UAJ9NrlhIx0S5FDwh4JzgqWRLGrdbJQCfZ1lN KvLXuyQEANVoksUtiWeMKjE= =/GL2 -----END PGP SIGNATURE----- --zYM0uCDKw75PZbzx--
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