Date: Sat, 23 Oct 1999 12:55:56 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/14486: repeated arrival/departure of disks leads to panic in dscheck Message-ID: <199910231955.MAA00406@quarm.feral.com>
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>Number: 14486 >Category: kern >Synopsis: repeated arrival/departure of disks leads to panic in dscheck >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Oct 23 13:00:00 PDT 1999 >Closed-Date: >Last-Modified: >Originator: Matthew Jacob >Release: FreeBSD 4.0-19991022-CURRENT i386 >Organization: Feral Software >Environment: 2xPPro x86. >Description: repeated arrivals/departures of disks, sometimes with the labels changed, yields a panic: Stopped at dscheck+0x53: movl 0x10(%edx),%esi db> t dscheck(c3327a38,0) at dscheck+0x53 diskstrategy(c3327a38,c0ae4780,200,c0a4db80,0) at diskstrategy+0xad readdisklabel(c0ae4780,c0a51600,c0a4db80,c0b1e8e0,c0a4db80) at readdisklabel+0x5 3 dsopen(c0a4db80,2000,0,c0b1e8ec,c0b1e8f0) at dsopen+0x248 diskopen(c0a4db80,1,2000,c7c77800,0) at diskopen+0xdb spec_open(c86afe08,c86afde0,c020ecd9,c86afe08,c86afe7c) at spec_open+0x154 spec_vnoperate(c86afe08,c86afe7c,c0190ace,c86afe08,0) at spec_vnoperate+0x15 ufs_vnoperatespec(c86afe08,0,c86aff80,fffffffc,100) at ufs_vnoperatespec+0x15 vn_open(c86afed8,1,dfd,c7c77800,3) at vn_open+0x37e open(c7c77800,c86aff80,1,1b0a,bfbfdad1) at open+0xbb syscall(2f,2f,2f,bfbfdad1,1b0a) at syscall+0x1b1 Xsyscall() at Xsyscall+0x3a with Supervisor page niot present... This should be enough information for the responsible designers to do the appropriate hardening. >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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