2011/9/7 Andrey V. Elsukov <ae_at_freebsd.org>: > On 07.09.2011 04:21, Mikael Fridh wrote: >> Hi gurus, >> >> FreeBSD freebsd9.mg8.tmtowtdi.se 9.0-BETA2 FreeBSD 9.0-BETA2 #0: Wed >> Aug 31 18:07:44 UTC 2011 >> root_at_farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >> >> When resizing a partition, on first attempt it uses up the whole disk. >> Only on second attempt it resizes to the correct target size. >> >> Resizing from any smaller size to a larger size initially uses up the >> whole disk, like if -s was not used at all even if it's as little as >> one logical disk block. >> >> I'm wondering if anyone else can reproduce. > > I can't reproduce. > > So, can you enable G_F_CTLDUMP flag and try it again, and show what you > will get? > Just use: > # sysctl kern.geom.debugflags=0x80 > # gpart resize -i 2 -s 33554432 md0 > > On the console (and in the log files) will be printed some info. I saw your patch and will try to patch and try it. For completion here is the information you requested. freebsd9# gpart add -t freebsd-swap -s 200 -l testswap ada0 ada0p5 added freebsd9# gpart show ada0 => 34 3907029101 ada0 GPT (1.8T) 34 30 - free - (15k) 64 128 1 freebsd-boot (64k) 192 33554240 2 freebsd-swap (16G) 33554432 209715200 3 freebsd-zfs (100G) 243269632 3663757312 4 freebsd-zfs (1.7T) 3907026944 200 5 freebsd-swap (100k) 3907027144 1991 - free - (995k) freebsd9# sysctl kern.geom.debugflags=0x80 kern.geom.debugflags: 0 -> 128 freebsd9# gpart resize -i 5 -s 800 ada0 ada0p5 resized freebsd9# gpart show ada0 => 34 3907029101 ada0 GPT (1.8T) 34 30 - free - (15k) 64 128 1 freebsd-boot (64k) 192 33554240 2 freebsd-swap (16G) 33554432 209715200 3 freebsd-zfs (100G) 243269632 3663757312 4 freebsd-zfs (1.7T) 3907026944 2184 5 freebsd-swap (1.1M) 3907029128 7 - free - (3.5k) freebsd9# diskinfo -v ada0 ada0 512 # sectorsize 2000398934016 # mediasize in bytes (1.8T) 3907029168 # mediasize in sectors 4096 # stripesize 0 # stripeoffset 3876021 # Cylinders according to firmware. 16 # Heads according to firmware. 63 # Sectors according to firmware. WD-WCAVY1880124 # Disk ident. dmesg output from gpart add and 2 sequential gpart resizes (gpart resize -i 5 -s 800 ada0): * add: Dump of gctl request at 0xfffffe0002b94a80: param: "class" [R5] = "PART" param: "verb" [R4] = "add" param: "version" [R4] = 00 00 00 00 param: "type" [R13] = "freebsd-swap" param: "size" [R4] = "200" param: "label" [R9] = "testswap" param: "start" [R11] = "3907026944" param: "flags" [R2] = "C" param: "arg0" [R5] = "ada0" param: "output" [RW4096] = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * resize 1: Dump of gctl request at 0xfffffe0002b94c80: param: "class" [R5] = "PART" param: "verb" [R7] = "resize" param: "version" [R4] = 00 00 00 00 param: "index" [R8] = 05 00 00 00 00 00 00 00 param: "size" [R5] = "2184" param: "flags" [R2] = "C" param: "arg0" [R5] = "ada0" param: "output" [RW4096] = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * resize 2: Dump of gctl request at 0xfffffe0002b93680: param: "class" [R5] = "PART" param: "verb" [R7] = "resize" param: "version" [R4] = 00 00 00 00 param: "index" [R8] = 05 00 00 00 00 00 00 00 param: "size" [R4] = "800" param: "flags" [R2] = "C" param: "arg0" [R5] = "ada0" param: "output" [RW4096] = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -- Mikael FridhReceived on Wed Sep 07 2011 - 18:27:41 UTC
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