Date: Thu, 16 Oct 2014 21:10:27 -0700 From: Xin Li <delphij@delphij.net> To: "James R. Van Artsdalen" <james-freebsd-fs2@jrv.org>, d@delphij.net Cc: freebsd-fs@freebsd.org, "James R. Van Artsdalen" <james-freebsd-current@jrv.org>, current@freebsd.org Subject: Re: zfs recv hangs in kmem arena Message-ID: <544096B3.20306@delphij.net> In-Reply-To: <54409050.4070401@jrv.org> References: <54250AE9.6070609@jrv.org> <543FAB3C.4090503@jrv.org> <543FEE6F.5050007@delphij.net> <54409050.4070401@jrv.org>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 10/16/14 8:43 PM, James R. Van Artsdalen wrote: > On 10/16/2014 11:12 AM, Xin Li wrote: >>> On 9/26/2014 1:42 AM, James R. Van Artsdalen wrote: >>>> FreeBSD BLACKIE.housenet.jrv 10.1-BETA2 FreeBSD 10.1-BETA2 >>>> #2 r272070M: Wed Sep 24 17:36:56 CDT 2014 >>>> james@BLACKIE.housenet.jrv:/usr/obj/usr/src/sys/GENERIC >>>> amd64 >>>> >>>> With current STABLE10 I am unable to replicate a ZFS pool >>>> using zfs send/recv without zfs hanging in state "kmem >>>> arena", within the first 4TB or so (of a 23TB Pool). > >> What does procstat -kk 1176 (or the PID of your 'zfs' process >> that stuck in that state) say? >> >> Cheers, >> > SUPERTEX:/root# ps -lp 866 UID PID PPID CPU PRI NI VSZ RSS > MWCHAN STAT TT TIME COMMAND 0 866 863 0 52 0 66800 > 29716 kmem are D+ 1 57:40.82 zfs recv -duvF BIGTOX > SUPERTEX:/root# procstat -kk 866 PID TID COMM TDNAME > KSTACK 866 101573 zfs - mi_switch+0xe1 > sleepq_wait+0x3a _cv_wait+0x16d vmem_xalloc+0x568 vmem_alloc+0x3d > kmem_malloc+0x33 keg_alloc_slab+0xcd keg_fetch_slab+0x151 > zone_fetch_slab+0x7e zone_import+0x40 uma_zalloc_arg+0x34e > arc_get_data_buf+0x31a arc_buf_alloc+0xaa dmu_buf_will_fill+0x169 > dmu_write+0xfc dmu_recv_stream+0xd40 zfs_ioc_recv+0x94e > zfsdev_ioctl+0x5ca Do you have any special tuning in your /boot/loader.conf? Cheers, -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJUQJazAAoJEJW2GBstM+ns6dQQAK4NM6X40d7tS7pqoTQvZbrD U0u5kid703tWgAlSFzvORxeOEB94BxcHu/z1a68nGhUlL2kip8SirWV9A1rqBpes i4T6asHYTcFj4OvaPfSoA7lSVsZIaLK+RscraN1b7hehSG9UExeYF8D7cRIguhoa 1Gnlv5iZZkjJZGjR0R6DmxC8C1CyNxAZBXnj1L+ofpgUzqH0Rw2TCW1XVKqMcxvI 5lpt+V0uu7MPNgjzgVy/1z5ZD2SUBPco0eHuN/Npj0c6HkmHkoWqd53vxrBhlyCP eDbzLw7QTO7PaV5hAuC9y9/X1JGlmTVa0GP2irKuE5t1bAbVwUPQqpn+iiFs1Le8 34fL/jkCeSBY6voYYj100CBU1/1mZOh93wuY6FdMVWPJp/bsjbDUtKZUmosGU86j ZMikfVNl5Jc5dmH30JGFCDOWzfaFq+V34toSfYIihaBQPyFov0Mr7De5MvQ7VJ7D qiXDcfAXE99CXzAboYpruwrbxyxTqhUmXlWp2uCPqvmo0WhVUsROmhhXhWXkG3tS S7L0n4X8kgklveirZWq/oDsg4JXNTP2ernNdAYyhD7TbG/N4INdFaVuqZkDVDgny ibwY0HEzg2zskJOJBqr9a21fZx6c2dvJ1n+j5BaAq6ve2Hw2NyvUVWfMTknp4I8j t/JJtsDNs9xokH/veS3J =aBKI -----END PGP SIGNATURE-----
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