Date: Wed, 08 Sep 2004 18:25:08 +0200 From: Martin Matuska <matuska@firma.zoznam.sk> To: freebsd-geom@freebsd.org Subject: Partition table offset increment by 63 with geom mirror class Message-ID: <413F3264.1040509@firma.zoznam.sk>
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This is a multi-part message in MIME format. --------------010502020000050107030304 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Hello, I have experienced the same problem as stated in: http://lists.freebsd.org/pipermail/freebsd-current/2003-July/007708.html System: FreeBSD 5.3-BETA3 i386 Problem description: When accessing SCSI disks via gmirror, the c partition (and all sub-partitions) reports an increased offset by 63 (under GEOM). Additional data: dmesg: CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2791.01-MHz 686-class CPU) ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0x4000-0x40ff,0x3800-0x38ff mem 0xfe9e0000-0xfe9e1fff irq 50 at device 7.0 on pci4 ahd0: [GIANT-LOCKED] aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0x3400-0x34ff,0x3000-0x30ff mem 0xfe9f0000-0xfe9f1fff irq 49 at device 7.1 on pci4 ahd1: [GIANT-LOCKED] da0 at ahd1 bus 0 target 0 lun 0 da0: <SEAGATE ST336607LSUN36G 0307> Fixed Direct Access SCSI-3 device da0: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled da0: 34732MB (71132959 512 byte sectors: 255H 63S/T 4427C) da1 at ahd1 bus 0 target 1 lun 0 da1: <SEAGATE ST336607LSUN36G 0307> Fixed Direct Access SCSI-3 device da1: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled da1: 34732MB (71132959 512 byte sectors: 255H 63S/T 4427C) test# fdisk da0 ******* Working on device /dev/da0 ******* parameters extracted from in-core disklabel are: cylinders=4427 heads=255 sectors/track=63 (16065 blks/cyl) Figures below won't work with BIOS for partitions not in cyl 1 parameters to be used for BIOS calculations are: cylinders=4427 heads=255 sectors/track=63 (16065 blks/cyl) Media sector size is 512 Warning: BIOS sector numbering starts with sector 1 Information from DOS bootblock is: The data for partition 1 is: sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD) start 63, size 71119692 (34726 Meg), flag 80 (active) beg: cyl 0/ head 1/ sector 1; end: cyl 1023/ head 254/ sector 63 The data for partition 2 is: <UNUSED> The data for partition 3 is: <UNUSED> The data for partition 4 is: <UNUSED> test# bsdlabel -r /dev/da0s1 # /dev/da0s1: 8 partitions: # size offset fstype [fsize bsize bps/cpg] c: 71119692 0 unused 0 0 # "raw" part, don't edit test# gmirror label -v m1 da0 Metadata value stored on da0. Done. test# bsdlabel -r /dev/mirror/m1s1 # /dev/mirror/m1s1: 8 partitions: # size offset fstype [fsize bsize bps/cpg] c: 71119692 63 unused 0 0 # "raw" part, don't edit partition c: partition extends past end of unit bsdlabel: partition c doesn't start at 0! bsdlabel: An incorrect partition c may cause problems for standard system utilities This happens when mirroring the slice directly, too. I have the following sources compiled into my kernel: g_mirror.c: 1.25 (but I tried 1.19 from RELENG_5, too) g_mirror.h: 1.8 g_mirror_ctl.c: 1.4 --------------010502020000050107030304--
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