kern/141235: 8.0 no longer provides /dev entries for all disk slices [regression]

[dieterbsd at engineer.com]

The following reply was made to PR kern/141235; it has been noted by GNATS.

From: dieterbsd at engineer.com
To: bug-followup at freebsd.org, jh at FreeBSD.org
Cc: freebsd at sopwith.solgatos.com, freebsd-bugs at FreeBSD.org
Subject: Re: kern/141235: 8.0 no longer provides /dev entries for all disk slices
 [regression]
Date: Thu, 27 May 2010 18:51:00 -0400

 > This is probably related to GEOM_PART_*. Could you confirm that by=20
 replacing
 > GEOM_PART_* options in your kernel config with GEOM_MBR and GEOM_BSD?
 
 opt_geom.h previously contained:
 
 #define GEOM_LABEL 1
 #define GEOM_PART_EBR 1
 #define GEOM_PART_GPT 1
 #define GEOM_PART_MBR 1
 #define GEOM_PART_EBR_COMPAT 1
 #define GEOM_PART_BSD 1
 
 Added GEOM_MBR and GEOM_BSD to config file.
 (previous config file was stock GENERIC)
 
 opt_geom.h now:
 
 #define GEOM_BSD 1
 #define GEOM_LABEL 1
 #define GEOM_PART_EBR 1
 #define GEOM_PART_GPT 1
 #define GEOM_PART_MBR 1
 #define GEOM_PART_EBR_COMPAT 1
 #define GEOM_PART_BSD 1
 #define GEOM_MBR 1
 
 7.1 kernel works properly:
 
 ls -l /dev/ad4*
 crw-r-----  1 root  operator    0,  85 May 27 19:24 /dev/ad4
 crw-r-----  1 root  operator    0,  89 May 27 19:24 /dev/ad4s1
 crw-r-----  1 root  operator    0,  90 May 27 19:24 /dev/ad4s2
 crw-r-----  1 root  operator    0,  91 May 27 19:24 /dev/ad4s3
 crw-r-----  1 root  operator    0,  98 May 27 19:24 /dev/ad4s3a
 crw-r-----  1 root  operator    0,  99 May 27 19:24 /dev/ad4s3c
 crw-r-----  1 root  operator    0,  92 May 27 19:24 /dev/ad4s4
 crw-r-----  1 root  operator    0, 100 May 27 19:24 /dev/ad4s4a
 crw-r-----  1 root  operator    0, 101 May 27 19:24 /dev/ad4s4b
 crw-r-----  1 root  operator    0, 102 May 27 19:24 /dev/ad4s4c
 
 ls -l /dev/ad20*
 crw-r-----  1 root  operator    0, 120 May 27 19:24 /dev/ad20
 crw-r-----  1 root  operator    0, 163 May 27 19:24 /dev/ad20s1
 crw-r-----  1 root  operator    0, 164 May 27 19:24 /dev/ad20s2
 crw-r-----  1 root  operator    0, 165 May 27 19:24 /dev/ad20s3
 crw-r-----  1 root  operator    0, 166 May 27 19:24 /dev/ad20s4
 crw-r-----  1 root  operator    0, 194 May 27 19:24 /dev/ad20s5        =20
 extended partition
 #
 
 -------------------------
 
 stock 8.0 kernel:
 
 (ada4 in 8.0 is same disk as ad20 in 7.1)
 
 ls -l /dev/ad4*
 crw-r-----  1 root  operator    0, 102 May 27 12:13 /dev/ad4
 crw-r-----  1 root  operator    0, 103 May 27 12:13 /dev/ad4s1
 crw-r-----  1 root  operator    0, 104 May 27 12:13 /dev/ad4s2
 crw-r-----  1 root  operator    0, 105 May 27 12:13 /dev/ad4s3
 crw-r-----  1 root  operator    0, 109 May 27 12:13 /dev/ad4s3a
 crw-r-----  1 root  operator    0, 106 May 27 12:13 /dev/ad4s4
 crw-r-----  1 root  operator    0, 110 May 27 12:13 /dev/ad4s4a
 crw-r-----  1 root  operator    0, 111 May 27 12:13 /dev/ad4s4b
 
 ls -l /dev/ada4*
 crw-r-----  1 root  operator    0, 180 May 27 12:13 /dev/ada4
 crw-r-----  1 root  operator    0, 223 May 27 12:13 /dev/ada4s1
 crw-r-----  1 root  operator    0, 224 May 27 12:13 /dev/ada4s2
 crw-r-----  1 root  operator    0, 225 May 27 12:13 /dev/ada4s3
 crw-r-----  1 root  operator    0, 226 May 27 12:13 /dev/ada4s4
 
 /dev/ada4s5 is missing
 
 ----------
 
 8.0 with GEOM_MBR and GEOM_BSD:
 
 ls -l /dev/ad4*
 crw-r-----  1 root  operator    0, 106 May 27 12:02 /dev/ad4
 crw-r-----  1 root  operator    0, 116 May 27 12:02 /dev/ad4s1
 crw-r-----  1 root  operator    0, 117 May 27 12:02 /dev/ad4s2
 crw-r-----  1 root  operator    0, 118 May 27 12:02 /dev/ad4s3
 crw-r-----  1 root  operator    0, 131 May 27 12:02 /dev/ad4s3a
 crw-r-----  1 root  operator    0, 131 May 27 12:02 /dev/ad4s3a        =20
 dup ?
 crw-r-----  1 root  operator    0, 132 May 27 12:02 /dev/ad4s3c
 crw-r-----  1 root  operator    0, 161 May 27 12:02 /dev/ad4s3ca       =20
 ?
 crw-r-----  1 root  operator    0, 119 May 27 12:02 /dev/ad4s4
 crw-r-----  1 root  operator    0, 134 May 27 12:02 /dev/ad4s4a
 crw-r-----  1 root  operator    0, 135 May 27 12:02 /dev/ad4s4b
 crw-r-----  1 root  operator    0, 136 May 27 12:02 /dev/ad4s4c
 crw-r-----  1 root  operator    0, 166 May 27 12:02 /dev/ad4s4ca       =20
 ?
 crw-r-----  1 root  operator    0, 167 May 27 12:02 /dev/ad4s4cb       =20
 ?
 
 ls -l /dev/ada4* | cat -v
 crw-r-----  1 root  operator    1,  29 May 27 12:02 /dev/ada4
 crw-r-----  1 root  operator    1,  72 May 27 12:02 /dev/ada4s1
 crw-r-----  1 root  operator    1,  72 May 27 12:02 /dev/ada4s1        =20
 dup ?
 crw-r-----  1 root  operator    1,  73 May 27 12:02 /dev/ada4s2
 crw-r-----  1 root  operator    1,  73 May 27 12:02 /dev/ada4s2        =20
 dup ?
 crw-r-----  1 root  operator    1,  74 May 27 12:02 /dev/ada4s3
 crw-r-----  1 root  operator    1,  74 May 27 12:02 /dev/ada4s3        =20
 dup ?
 crw-r-----  1 root  operator    1,  75 May 27 12:02 /dev/ada4s4
 crw-r-----  1 root  operator    1,  75 May 27 12:02 /dev/ada4s4        =20
 dup ?
 crw-r-----  1 root  operator    1, 193 May 27 12:02 /dev/ada4s4s1      =20
 ?
 crw-r-----  1 root  operator    1, 193 May 27 12:02 /dev/ada4s4s1      =20
 ?
 crw-r-----  1 root  operator    1, 192 May 27 12:02 /dev/ada4s5        =20
 extended partition showed up
 
 So the extended partition showed up, but now I have some duplicate /dev=20
 entries
 and some oddball bogus entries.