Date: Mon, 12 Jan 2004 10:01:39 -0500 (EST) From: Mikhail Teterin <mi@aldan.algebra.com> To: current@FreeBSD.org Subject: core-dumping over NFS Message-ID: <200401121501.i0CF1eMC047055@aldan.algebra.com>
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Hello! I've observed the following bad behaviour of -current mostly related to dumping core of a buggy program over the NFS. . 5.2-CURRENT (Dec 14) client, Solaris-8 server: created core file is empty (zero sized). . 5.2-CURRENT (Dec 14) server, RedHat-9 client: core is created properly, but sometimes the server goes into a frenzy with the sys-component (bufdaemon) taking up the entire 100% of the CPU-time (P4 at 2GHz); it only writes @4Mb/s (~14% of the disk's bandwidth) and the only cure is to restart the /etc/rc.d/nfsd; trying to, for example, switch from X11 to a textual console, when this is happening reliably hangs the machine. . 5.2-CURRENT (Dec 14) server, 5.2-RC2 (Jan 10) client: dumps happen normally with rw-mounts, but mounting the FS read-only (so as to prevent core-dumps) leads to a panic on the client... The mounts are regular and default (v3?), except for the ``intr'' flag. No rpc.lock or anything... Any comments? -mi
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