Bug 479588

Description of problem:

Parted crashes when trying to print out a GPT disk label on a pen drive. This is not encountered on other disk labels (eg., msdos, sun).


Version-Release number of selected component (if applicable):

parted-1.8.8-8.fc10.x86_64


Steps to Reproduce:

1. Create a GPT disk label using parted's mklabel command.
2. Try to print out the newly created disk label using parted's print command.

  
Actual results:

[root@ginger ~]# gdb parted
GNU gdb Fedora (6.8-29.fc10)
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu"...
(gdb) run /dev/sdc
Starting program: /sbin/parted /dev/sdc
GNU Parted 1.8.8
Using /dev/sdc
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
*** glibc detected *** /sbin/parted: double free or corruption (out): 0x000000000083a2c0 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3221677ec8]
/lib64/libc.so.6(cfree+0x76)[0x322167a486]
/lib64/libparted-1.8.so.8[0x322224077f]
/lib64/libparted-1.8.so.8[0x32222414e3]
/lib64/libparted-1.8.so.8(ped_disk_new+0x9a)[0x3222215aea]
/sbin/parted[0x406c2c]
/sbin/parted(interactive_mode+0xfc)[0x40d50c]
/sbin/parted(main+0x8f)[0x40a7cf]
/lib64/libc.so.6(__libc_start_main+0xe6)[0x322161e576]
/sbin/parted[0x405349]
======= Memory map: ========
[..]
Program received signal SIGABRT, Aborted.
0x0000003221632f05 in raise (sig=<value optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
64	  return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
Missing separate debuginfos, use: debuginfo-install device-mapper-libs-1.02.27-7.fc10.x86_64 libgcc-4.3.2-7.x86_64
(gdb) 
(gdb) bt
#0  0x0000003221632f05 in raise (sig=<value optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x0000003221634a73 in abort () at abort.c:88
#2  0x0000003221672438 in __libc_message (do_abort=2, 
    fmt=0x322173c428 "*** glibc detected *** %s: %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#3  0x0000003221677ec8 in malloc_printerr (action=2, 
    str=0x322173c510 "double free or corruption (out)", 
    ptr=<value optimized out>) at malloc.c:5994
#4  0x000000322167a486 in __libc_free (mem=0x3221732880) at malloc.c:3625
#5  0x000000322224077f in pth_free (pth=0x83a250) at gpt.c:328
#6  0x00000032222414e3 in gpt_read (disk=0x838570) at gpt.c:954
#7  0x0000003222215aea in ped_disk_new (dev=0x833920) at disk.c:209
#8  0x0000000000406c2c in do_print (dev=0x7fffffffe638) at parted.c:1279
#9  0x000000000040d50c in interactive_mode (dev=0x7fffffffe638, 
    cmd_list=<value optimized out>) at ui.c:1502
#10 0x000000000040a7cf in main (argc=0, argv=0x7fffffffe728) at parted.c:2482
(gdb) 


Expected results:

The GPT disk label should be printed.


Additional info:

The current Git master correctly prints out the GPT disk label:

[rishi@ginger parted-hacking]$ sudo parted/parted /dev/sdc
[sudo] password for rishi: 
GNU Parted 1.8.8.1.95-9193
Using /dev/sdc
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: CCore Flash Disk (scsi)
Disk /dev/sdc: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name     Flags
 1      17.4kB  2048MB  2048MB  fat16        usbdisk  boot 

(parted)