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Full Discussion: /proc is eating my disk man
Top Forums UNIX for Dummies Questions & Answers /proc is eating my disk man Post 34009 by hcclnoodles on Thursday 30th of January 2003 09:22:47 AM
Old 01-30-2003
/proc is eating my disk man

hi

I have an sun ultra 5 running a firewall which has logging enabled (essential). The disk is sliced up with /proc on / (c0t0d0s0). / is sliced at 3 gig. My problem is this, one afternoon, a manager asked me to retrieve some firewall logs, so i went into the relevant directory (also on the / slice) and typed 'ls -l', for some reason the last 6 days logs were empty (0 bytes), so my first instinct was to run 'df -k' to see how much space was left on /, as i thought it was at 100%, so at root i used 'du -sk *' to check what was eating the space, everything was fine apart from /proc which reported 2.6 gig. I delved deeper and indeed found directories ie 156 and 24967 which both came in at nearly a gig each.

Everthing I have read has said that /proc is virtual and these direcotries dont actuall eat any space, but if this is the case how come DF and DU report on it and how come when DF reports 100% on / because of these so called virtual files, It doesnt allow me to write anything to the disk, Ive even tried to create afile on /
using 'touch file' with no joy

Any help on this extremely frustrating matter would be greatly appreciated

regards
Gary
 

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NETWORK_NAMESPACES(7)					     Linux Programmer's Manual					     NETWORK_NAMESPACES(7)

NAME
network_namespaces - overview of Linux network namespaces DESCRIPTION
Network namespaces provide isolation of the system resources associated with networking: network devices, IPv4 and IPv6 protocol stacks, IP routing tables, firewall rules, the /proc/net directory (which is a symbolic link to /proc/PID/net), the /sys/class/net directory, various files under /proc/sys/net, port numbers (sockets), and so on. A physical network device can live in exactly one network namespace. When a network namespace is freed (i.e., when the last process in the namespace terminates), its physical network devices are moved back to the initial network namespace (not to the parent of the process). A virtual network (veth(4)) device pair provides a pipe-like abstraction that can be used to create tunnels between network namespaces, and can be used to create a bridge to a physical network device in another namespace. When a namespace is freed, the veth(4) devices that it contains are destroyed. Use of network namespaces requires a kernel that is configured with the CONFIG_NET_NS option. SEE ALSO
nsenter(1), unshare(1), clone(2), veth(4), proc(5), sysfs(5), namespaces(7), user_namespaces(7), brctl(8), ip(8), ip-address(8), ip- link(8), ip-netns(8), iptables(8), ovs-vsctl(8) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 2018-02-02 NETWORK_NAMESPACES(7)
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