Date: Thu, 03 Aug 2017 13:58:56 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 221202] Mbufs leak since r321253 Message-ID: <bug-221202-8@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221202 Bug ID: 221202 Summary: Mbufs leak since r321253 Product: Base System Version: CURRENT Hardware: arm64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: gergely.czuczy@harmless.hu Hello, While running some port builds over an NFS-mounted /usr/ports on my=20 aarch64 VM after r321253, I've noticed that sooner or later I'm getting=20 an error saying "kernel: [zone: mbuf_cluster] kern.ipc.nmbclusters limit=20 reached". I've tried increasing the sysctl, but after some time I always=20 got the error. I've checked the mbuf counter with ``netstat -m'' periodically during=20 the build, and noticed that the mbufs in use and mbuf clusters in use=20 are continuously increasing, I've never seen a decrease: 279943/392/280335 mbufs in use (current/cache/total) 130819/253/131072/131072 mbuf clusters in use (current/cache/total/max) According to=20 https://svnweb.freebsd.org/base/head/?view=3Dlog&pathrev=3D321253, the=20 previous commit to HEAD was r321248. I've checked it on that build as=20 well, and I couldn't reproduce the issue, mbuf counters were stable. After getting the kernel error message, the builds got stuck, some=20 processes become unresponsive, and the only way to I was aware to clear=20 the mbufs was to reboot the VM. So far what I know, is building over NFS triggers the leak. However, I=20 haven't tested it with other network activities, might also do the trick. Could you please take a look into it? If any more information is needed, please let me know, I still have my=20 test VMs at hand, I can do a few tests. Best regards, Gergely PS1: Might affect other architectures as well, I haven't tested it on anyth= ing else than aarch64. --=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-221202-8>