Date: Tue, 13 May 2008 12:53:28 -0700 From: Xin LI <delphij@delphij.net> To: Ben Stuyts <ben@altus-escon.com> Cc: stable@freebsd.org Subject: Re: Panic after hung rsync, probably zfs related Message-ID: <4829F1B8.1000707@delphij.net> In-Reply-To: <7A0780B6-AD8E-440B-BFDB-EC2C4ACA1A70@altus-escon.com> References: <7A0780B6-AD8E-440B-BFDB-EC2C4ACA1A70@altus-escon.com>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ben Stuyts wrote: | Hi, | | While doing an rsync from a zfs filesystem to an external usb hd (also | zfs), the rsync processes hung in zfs state. I could not kill these | processes, although the rest of the server seemingly continued to run | fine. The reboot command did not work. Next I tried a shutdown now | command. This caused a panic: Sound like you somehow run out of memory, there is an known issue with ZFS which causes livelock when there is memory pressure. Which rsync version are you using? With rsync 3.x the memory usage would drop drastically which would help to prevent this from happening. Cheers, - -- ** Help China's quake relief at http://www.redcross.org.cn/ |>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkgp8bcACgkQi+vbBBjt66DQQgCfSObZqsQNCteT9SsjDTIqAa2E xfgAnAs9reRKfjaJdS9RAco0cnD7JZp0 =J4+1 -----END PGP SIGNATURE-----
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