Date: Tue, 21 Sep 2004 13:53:08 +0200 (CEST) From: "Walter C. Pelissero" <wcp@pelissero.de> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/71968: USB disk triggers swap activity Message-ID: <200409211153.i8LBr8qh000891@hyde.home.loc> Resent-Message-ID: <200409211200.i8LC0h3B049355@freefall.freebsd.org>
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>Number: 71968 >Category: kern >Synopsis: USB disk triggers swap activity >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Sep 21 12:00:42 GMT 2004 >Closed-Date: >Last-Modified: >Originator: Walter C. Pelissero >Release: FreeBSD 5.2.1-RELEASE-p9 i386 >Organization: >Environment: System: FreeBSD hyde.home.loc 5.2.1-RELEASE-p9 FreeBSD 5.2.1-RELEASE-p9 #1: Tue Aug 24 10:06:14 CEST 2004 root@hyde.home.loc:/usr/src/sys/i386/compile/PCG-XG9 i386 Sony Vaio PCG-XG9, LaCie 160G USB2 disk with UFS2 filesystem mounted automatically by amd. >Description: When I do a substantial activity on a 160G USB2 disk the system starts an heavy ATA disk activity that looks like swapping because, even though there is still 50MB RAM available, the swap usage jumps up to 14% and then slowly reaches 17%. Soon, one by one, the programs become irresponsive and the system grinds to a halt (but the ATA activity). If I don't try it immediately, ssh from another node yields a connection timeout. Needless to say the USB keyboard and mouse die immediately, while I can still use the trackpad on the laptop. >How-To-Repeat: dd if=/dev/zero of=/path/to/the/usb/filesystem >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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