[illumos] [OpenIndiana Distribution - Bug #4098] GNU parted "crash" (well, sort of)

Fri Sep 6 08:39:19 UTC 2013

Issue #4098 has been updated by Erik Larsson.

Update: I now know where the number 625137408 comes from. There seems to be some disagreement within the kernel regarding the size/capacity of this hard drive.
For /dev/rdsk/c5d0 DKIOCGMEDIAINFO says 625137408, while DKIOCEXTPARTINFO says 625142448 (which is correct).

Notably, DKIOCGMEDIAINFOEXT does not work for this particular device, which is also strange.
Also the eSATA device is not AHCI-connected due to some limitation in the controller.

In Linux (on the same hardware), the device size is consistently shown as 625142448 sectors. E.g.
<pre>
$ sudo parted /dev/sde
GNU Parted 2.3
Använder /dev/sde
Välkommen till GNU Parted! Skriv "hjälp" för att visa en lista över kommandon.
(parted) unit s                                                           
(parted) print                                                           
Modell: ATA WDC WD3200BEVT-2 (scsi)
Disk /dev/sde: 625142448s
Sektorstorlek (logisk/fysisk): 512B/512B
Partitionstabell: gpt

Nummer  Början      Slut        Storlek     Filsystem       Namn                   Flaggor
 1      40s         409639s     409600s     fat32           EFI System Partition   startbar
 2      409640s     273039400s  272629761s  hfs+            Apple_HFS_Untitled_2
 3      273301545s  378159145s  104857601s  hfs+            Apple_HFSX_Untitled_2
 4      378421290s  483278890s  104857601s  ntfs            Untitled 2
 5      483541035s  588398635s  104857601s  hfs+            Apple_HFS_Untitled_2
 6      588398636s  588400589s  1954s                                              bios_grub
 7      588400590s  623515824s  35115235s   ext4
 8      623515825s  625142414s  1626590s    linux-swap(v1)
</pre>

...and no problem is detected.

In addition, I can access the last sector of the device from within OpenIndiana:
<pre>
$ sudo dd if=/dev/rdsk/c5d0 of=lastsector bs=512 skip=625142447 count=1
Password: 
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0,0352888 s, 14,5 kB/s
</pre>
...but not the sector after the last sector:
<pre>
$ sudo dd if=/dev/rdsk/c5d0 of=lastsector bs=512 skip=625142448 count=1
0+0 records in
0+0 records out
0 bytes (0 B) copied, 6,7277e-05 s, 0,0 kB/s
</pre>
So the value returned by DKIOCGMEDIAINFO is clearly incorrect.

----------------------------------------
Bug #4098: GNU parted "crash" (well, sort of)
https://www.illumos.org/issues/4098

Author: Erik Larsson
Status: New
Priority: Normal
Assignee: OI illumos
Category: OS/Net (Kernel and Userland)
Target version: 
Difficulty: Medium
Tags: parted

When running parted on my eSATA-connected hard drive I get the following output:
---
<pre>
$ sudo parted /dev/dsk/c5d0
GNU Parted 1.8.8
Using /dev/dsk/c5d0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
print
Backtrace has 7 calls on stack:
  7: /usr/lib/libparted.so.8'ped_assert+0x33 [0xfeef5be7]
  6: /usr/lib/libparted.so.8'gpt_read+0x13a [0xfef31546]
  5: /usr/lib/libparted.so.8'ped_disk_new+0x93 [0xfeef9d8f]
  4: /usr/sbin/parted'do_print+0x84 [0x8056fe8]
  3: /usr/sbin/parted'interactive_mode+0xe3 [0x805c0a3]
  2: /usr/sbin/parted'main+0x56 [0x805959a]
  1: /usr/sbin/parted'_start+0x7d [0x8054d0d]

You found a bug in GNU Parted! Here's what you have to do:

Don't panic! The bug has most likely not affected any of your data.
Help us to fix this bug by doing the following:

Check whether the bug has already been fixed by checking
the last version of GNU Parted that you can find at:

        http://ftp.gnu.org/gnu/parted/

Please check this version prior to bug reporting.

If this has not been fixed yet or if you don't know how to check,
please visit the GNU Parted website:

        http://www.gnu.org/software/parted

for further information.

Your report should contain the version of this release (1.8.8)
along with the error message below, the output of

        parted DEVICE unit co print unit s print

and the following history of commands you entered.
Also include any additional information about your setup you
consider important.

Assertion ((PedSector) PED_LE64_TO_CPU (gpt->AlternateLBA) <= disk->dev->length
- 1) at unknown:0 in function unknown() failed.

Ignore/Cancel? i                                                          
i
Backtrace has 8 calls on stack:
  8: /usr/lib/libparted.so.8'ped_assert+0x33 [0xfeef5be7]
  7: /usr/lib/libparted.so.8'_parse_header+0x171 [0xfef30e61]
  6: /usr/lib/libparted.so.8'gpt_read+0x179 [0xfef31585]
  5: /usr/lib/libparted.so.8'ped_disk_new+0x93 [0xfeef9d8f]
  4: /usr/sbin/parted'do_print+0x84 [0x8056fe8]
  3: /usr/sbin/parted'interactive_mode+0xe3 [0x805c0a3]
  2: /usr/sbin/parted'main+0x56 [0x805959a]
  1: /usr/sbin/parted'_start+0x7d [0x8054d0d]