Date: Thu, 11 Aug 2011 13:31:13 -0400 From: Andrew Duane <aduane@juniper.net> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Dumping core over NFS Message-ID: <AC6674AB7BC78549BB231821ABF7A9AEB72924DB25@EMBX01-WF.jnpr.net>
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We have a strange problem in 6.2 that we're wondering if anyone else has se= en. If a process is dumping core to an NFS-mounted directory, sending SIGIN= T, SIGTERM, or SIGKILL to that process causes NFS to wedge. The nfs_asyncio= starts complaining that 20 iods are already processing the mount, but noth= ing makes any forward progress. Sending SIGUSR1, SIGUSR2, or SIGABRT seem to work fine, as does any signal = if the core dump is going to a local filesystem. Before I dig into this apparent deadlock, just wondering if it's been seen = before. ................................... Andrew Duane Juniper Networks o +1 978 589 0551 m +1 603-770-7088 aduane@juniper.net
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