Date: Tue, 03 Apr 2018 18:04:25 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-stable@FreeBSD.org Subject: [Bug 227213] FreeBSD 10.4 kernel deadlocks on sysctlmemlock Message-ID: <bug-227213-8075-5qBAhJISl6@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-227213-8075@https.bugs.freebsd.org/bugzilla/> References: <bug-227213-8075@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227213 --- Comment #9 from Mark Knight <markk@knigma.org> --- You asked: > What do you use vm.defer_swapspace_pageouts=3D1 for? After moving existing disks to a new chassis I have more RAM than swap and repartitioning would be a pain - I really don't need 16GB of swap! Without = this sysctl I was finding my swap was becoming full and lots of associated "out = of swap space" error. Since adding this sysctl that problem as ceased. I hope = 11.x won't have the same problem... As requested, here's a fresh kernel dump created as follows: 1) Disabled snmpd and snmptrapd in /etc/rc.conf, so definitely no snmpd running 2) reboot with 10.4 kernel 3) Login to console as root 4) Type ps <return> 5) Deadlock occurs 6) CTRL-T shows [sysctl-mem] 7) Ctrl-Alt-ESC followed by call doadump http://www.knigma.org/scratch/core.txt.1 http://www.knigma.org/scratch/vmcore.1.gz Kernel is the same file as before, so no need to download that again! Many thanks!! --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-227213-8075-5qBAhJISl6>