Date: Sun, 27 Jan 2008 15:37:50 GMT From: Bernard Steiner <bernard.steiner@lahmeyer.de> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/120044: incorrect MSDOSFS label fries administrative access to GEOM Message-ID: <200801271537.m0RFboux018399@www.freebsd.org> Resent-Message-ID: <200801271540.m0RFeBeT014098@freefall.freebsd.org>
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>Number: 120044 >Category: kern >Synopsis: incorrect MSDOSFS label fries administrative access to GEOM >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Jan 27 15:40:11 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Bernard Steiner >Release: 6.3-STABLE >Organization: >Environment: FreeBSD grimma.anydomain.de 6.3-STABLE FreeBSD 6.3-STABLE #13: Fri Jan 25 20:23:36 CET 2008 root@grimma.anydomain.de:/usr/obj/usr/src/sys/GRIMMA amd64 >Description: An unexpected msdosfs label can fry GEOM. I have an old memory stick which happens to have (had ;-) a non-standard MSDOSFS label on it, viz: Jan 26 11:28:34 grimma kernel: umass0: vendor 0x0c76 product 0x0005, rev 1.10/1.00, addr 3 Jan 26 11:28:34 grimma kernel: da0 at umass-sim0 bus 0 target 0 lun 0 Jan 26 11:28:34 grimma kernel: da0: (JetFlash Transcend 1.00) Removable Direct Access SCSI-2 device Jan 26 11:28:34 grimma kernel: da0: 1.000MB/s transfers Jan 26 11:28:34 grimma kernel: da0: 61MB (126600 512 byte sectors: 64H 32S/T 61C) Jan 26 11:28:35 grimma kernel: GEOM_LABEL: Label for provider da0 is msdosfs/(A0)(EA)(FF)(FF)(FF). (I replaced less-than and greater-than in those lines) Doing something like "gmirror status" while that memory stick is inserted yields a nice "Cannot get GEOM tree: Unknown error: -1." Note that the operation of the actual gmirror (and glabel, geli) devices is not affected afaik. The same stick works perfectly after being re-mlabel-d to a decent name. Stops working if the label is re-set to those unprintables... >How-To-Repeat: mlabel an msdosfs filesystem to 0xa0 0xea 0xff 0xff 0xff >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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