Date: Thu, 10 Nov 2016 23:47:16 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-scsi@FreeBSD.org Subject: [Bug 211990] iscsi fails to reconnect and does not release devices Message-ID: <bug-211990-5312-5jxslI7RBL@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-211990-5312@https.bugs.freebsd.org/bugzilla/> References: <bug-211990-5312@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211990 --- Comment #31 from Julien Cigar <julien@perdition.city> --- Y(In reply to Steven Hartland from comment #29) Yes it seems so: root@filer1:/var/log # vmstat -z | head -n 1; vmstat -z | grep mbuf ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP mbuf_packet: 256, 3200070, 1024, 3431,94881716, 0, 0 mbuf: 256, 3200070, 257, 3103,566359041, 0, 0 mbuf_cluster: 2048, 500010, 4455, 133,15367798, 0, 0 mbuf_jumbo_page: 4096, 250005, 0, 161,102798544, 0, 0 mbuf_jumbo_9k: 9216, 74075, 256, 120,52036055, 304, 0 mbuf_jumbo_16k: 16384, 41667, 0, 0, 0, 0, 0 mbuf_ext_refcnt: 4, 0, 0, 0, 0, 0, 0 > You'd have to catch it when the issue is occurring to confirm not so easy :) but every time I have a WARNING: 10.20.30.32 (iqn.2016-08.lan.prod:target0): no ping reply (NOP-In) after 30 seconds; reconnecting I have a small increase in the "requests for 9k jumbo clusters denied" coun= ter > If you have plenty of ram you could just trying doubling kern.ipc.nmbjumb= o9 to see if the problem goes away? The machine has only 8GB of RAM (and ZFS), I think I'll first test with a 1= 500 MTU and -tso --=20 You are receiving this mail because: You are on the CC list for the bug.=
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