Date: Sun, 9 Jul 2006 23:05:30 GMT From: bymer <bymer@infostore.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/99989: detaching disk Message-ID: <200607092305.k69N5Ua6098948@www.freebsd.org> Resent-Message-ID: <200607092310.k69NAKQ7005795@freefall.freebsd.org>
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>Number: 99989 >Category: kern >Synopsis: detaching disk >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Jul 09 23:10:19 GMT 2006 >Closed-Date: >Last-Modified: >Originator: bymer >Release: FreeBSD 6.1 RELEASE - STABLE i386 >Organization: >Environment: >Description: I have several computers of different configurations (other motherboards, controllers). Each have 14-20 hdd devices (ATA & SATA). Under heavy load, all of them periodically crashed (every 10-20 hours) with "disk detached" (random disk id) error. subdisk10: detached ad10: detached g_vfs_done():ad10s1h[READ(offset=289109770240, length=65536)]error = 6 g_vfs_done():ad10s1h[READ(offset=289297481728, length=131072)]error = 6 g_vfs_done():ad10s1h[READ(offset=296795766784, length=131072)]error = 6 -- skipped -- After it kernel panic (panic: vinvalbuf: dirty bufs) or hang. After reboot process all working fine. It's appear on all FreeBSD 6 versions, from 6.0 RELEASE to 6.1-STABLE. >How-To-Repeat: See full description. >Fix: I understand that disk I/O error happened, but detaching disk it's not a good idea. It's good to control detach process from sysctl variable or similar this. >Release-Note: >Audit-Trail: >Unformatted:
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