Date: Tue, 21 Aug 2018 09:20:58 -0400 From: Mike Tancsa <mike@sentex.net> To: Eugene Grosbein <eugen@grosbein.net>, FreeBSD-STABLE Mailing List <freebsd-stable@FreeBSD.org> Subject: Re: gpart strangeness Message-ID: <7886da80-d2e3-1562-07df-cb955d888e1b@sentex.net> In-Reply-To: <6be4ee74-c09d-b88f-e4ed-cadb1537e478@grosbein.net> References: <4e5b6d81-7fc5-c538-2bd2-8cd5dd040a1d@sentex.net> <6be4ee74-c09d-b88f-e4ed-cadb1537e478@grosbein.net>
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On 8/20/2018 11:34 PM, Eugene Grosbein wrote:
>> I was trying to create a single partition on a 16G mSata drive and
>> whenever I add a partition, all of a sudden the secondary GPT partion is
>> borked. Any idea whats going on here ?
>>
>
> Did you look to "dmesg -a" output for additional hints?
> What is system version?
RELENG11 r337953 AMD64
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <SATA SSD S9FM02.0> ACS-3 ATA SATA 3.x device
ada0: Serial Number DED9075313EC01677930
ada0: 600.000MB/s transfers (SATA 3.x, PIO4, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 15272MB (31277232 512 byte sectors)
Other than the message when I create the partition, nada
GEOM: diskid/DISK-DED9075313EC01677930: the secondary GPT table is
corrupt or invalid.
GEOM: diskid/DISK-DED9075313EC01677930: using the primary only --
recovery suggested.
I tried different alignment options for the partition, and no changes.
Doing MBR however seems to work for some reason
0# gpart destroy -F ada0
ada0 destroyed
0# gpart create -s mbr ada0
ada0 created
0# gpart add -t freebsd ada0
ada0s1 added
0# ls -l /dev/ada0*
crw-r----- 1 root operator - 0x4b Jan 19 23:59 /dev/ada0
crw-r----- 1 root operator - 0x7a Jan 20 22:09 /dev/ada0s1
crw-r----- 1 root operator - 0x7c Jan 20 22:09 /dev/ada0s1a
0# newfs -U -O2 /dev/ada0s1a
/dev/ada0s1a: 15272.1MB (31277168 sectors) block size 32768, fragment
size 4096
using 25 cylinder groups of 626.09MB, 20035 blks, 80256 inodes.
with soft updates
super-block backups (for fsck_ffs -b #) at:
192, 1282432, 2564672, 3846912, 5129152, 6411392, 7693632, 8975872,
10258112, 11540352, 12822592, 14104832, 15387072, 16669312, 17951552,
19233792, 20516032, 21798272, 23080512, 24362752, 25644992, 26927232,
28209472, 29491712, 30773952
0#
However, when I try to write to the disk, it crashes the box. I wonder
if this is a bad batch of mSata SSDs.... Hmmm
login: panic: ufs_dirbad: /mnt: bad dir ino 2 at offset 0: mangled entry
cpuid = 3
KDB: stack backtrace:
#0 0xffffffff80642407 at kdb_backtrace+0x67
#1 0xffffffff805fbc37 at vpanic+0x177
#2 0xffffffff805fbab3 at panic+0x43
#3 0xffffffff808255d1 at ufs_lookup_ino+0xe21
#4 0xffffffff80929f6c at VOP_CACHEDLOOKUP_APV+0x7c
#5 0xffffffff806a9c86 at vfs_cache_lookup+0xd6
#6 0xffffffff80929e4c at VOP_LOOKUP_APV+0x7c
#7 0xffffffff806b3691 at lookup+0x6d1
#8 0xffffffff806b2b59 at namei+0x489
#9 0xffffffff806c9168 at kern_statat+0x98
#10 0xffffffff806c931c at sys_fstatat+0x2c
#11 0xffffffff80889778 at amd64_syscall+0xa38
#12 0xffffffff8086a1fd at fast_syscall_common+0x101
Uptime: 1m6s
PCEngines apu3
coreboot build 20170302
4080 MB ECC DRAM
SeaBIOS (version rel-1.10.0.1)
Press F10 key now for boot menu
Booting from Hard Disk...
F1 FreeBSD
F2 FreeBSD
F5 Drive 1
F6 PXE
Boot: F1
/boot/config: -h -S115200
If I create a gpart, I can write to the disk, but there is corruption
behind the scenes
0# gpart create -s gpt ada0
ada0 created
0# gpart add -t freebsd-ufs ada0
ada0p1 added
0# newfs
newfs newfs_msdos
0# newfs -U -O2 /dev/ada0p1
/dev/ada0p1: 15272.0MB (31277152 sectors) block size 32768, fragment
size 4096
using 25 cylinder groups of 626.09MB, 20035 blks, 80256 inodes.
with soft updates
super-block backups (for fsck_ffs -b #) at:
192, 1282432, 2564672, 3846912, 5129152, 6411392, 7693632, 8975872,
10258112, 11540352, 12822592, 14104832, 15387072, 16669312, 17951552,
19233792, 20516032, 21798272, 23080512, 24362752, 25644992, 26927232,
28209472, 29491712, 30773952
0# mount /dev/ada0p1 /mnt
0# dd if=/dev/urandom of=/mnt/test1 bs=4096k count=200
200+0 records in
200+0 records out
838860800 bytes transferred in 44.383275 secs (18900381 bytes/sec)
0# md5 /mnt/test1
MD5 (/mnt/test1) = 02fba9e2f3795f13b864c8613c8ae49e
0# umount /mnt
0# mount /dev/ada0p1 /mnt
0# dd if=/dev/urandom of=/mnt/test2 bs=4096k count=100
100+0 records in
100+0 records out
419430400 bytes transferred in 22.194061 secs (18898317 bytes/sec)
0# md5 /mnt/test1
MD5 (/mnt/test1) = 318ee3900564460b14e4e80e0bb8f358
0#
---Mike
--
-------------------
Mike Tancsa, tel +1 519 651 3400 x203
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada
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