Date: Wed, 25 Apr 2001 09:48:49 -0700 (PDT) From: nsayer@quack.kfu.com To: FreeBSD-gnats-submit@freebsd.org Subject: bin/26842: dump with h flag takes a very long time Message-ID: <200104251648.f3PGmnt64348@medusa.kfu.com>
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>Number: 26842 >Category: bin >Synopsis: dump with h flag takes a very long time >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Apr 25 09:50:01 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Nick Sayer >Release: FreeBSD 4.3-RELEASE i386 >Organization: just me >Environment: System: FreeBSD medusa.kfu.com 4.3-RELEASE FreeBSD 4.3-RELEASE #6: Sat Apr 21 08:52:25 PDT 2001 nsayer@medusa.kfu.com:/usr/obj/usr/src/sys/MEDUSA i386 % df -i /usr Filesystem 1K-blocks Used Avail Capacity iused ifree %iused Mounted on /dev/ad0s1e 1744767 993637 611549 62% 157845 278633 36% /usr The filesystem has chflags nodump on /usr/src, /usr/obj, /usr/sup and /usr/ports. Nowhere else. Machine is a K6-233. >Description: The problem was noticed with the amanda port. Amanda does a dump 0fhs /dev/null 0 1048576 /usr and waits until the end of pass II to get an estimate of how much space the real dump will take. On this machine, with 4.3-RELEASE, the above command can take upwards of a half hour to complete pass II. dump 0fs /dev/null 1048576 /usr completes pass II almost immediately. Something about hierarchical dump flag processing has added exponentially to the amount of time Pass II takes to complete. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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