The FileSystem objects stored in the FILESYSTEM_MAP are allocated once
using new in init_filesystems() but never deleted.
Valgrind output fragment:
# valgrind --leak-check=full ./gparted
==29314== 353 (72 direct, 281 indirect) bytes in 1 blocks are definitely lost in loss record 6,287 of 6,905
==29314== at 0x4A075FC: operator new(unsigned long) (vg_replace_malloc.c:298)
>> ==29314== by 0x46EDA5: GParted::GParted_Core::init_filesystems() (GParted_Core.cc:106)
==29314== by 0x46EC5F: GParted::GParted_Core::GParted_Core() (GParted_Core.cc:96)
==29314== by 0x4A74F4: GParted::Win_GParted::Win_GParted(std::vector<Glib::ustring, std::allocator<Glib::ustring> > const&) (Win_GParted.cc:51)
==29314== by 0x4D600A: main (main.cc:56)
...
==29314== 161 (72 direct, 89 indirect) bytes in 1 blocks are definitely lost in loss record 6,119 of 6,905
==29314== at 0x4A075FC: operator new(unsigned long) (vg_replace_malloc.c:298)
>> ==29314== by 0x46F50C: GParted::GParted_Core::init_filesystems() (GParted_Core.cc:124)
==29314== by 0x46EC5F: GParted::GParted_Core::GParted_Core() (GParted_Core.cc:96)
==29314== by 0x4A74F4: GParted::Win_GParted::Win_GParted(std::vector<Glib::ustring, std::allocator<Glib::ustring> > const&) (Win_GParted.cc:51)
==29314== by 0x4D600A: main (main.cc:56)
GParted_Core.cc source:
102 void GParted_Core::init_filesystems()
103 {
104 FILESYSTEM_MAP[ FS_UNKNOWN ] = NULL ;
105 FILESYSTEM_MAP[ FS_CLEARED ] = NULL ;
>> 106 FILESYSTEM_MAP[ FS_BTRFS ] = new btrfs() ;
...
>> 124 FILESYSTEM_MAP[ FS_XFS ] = new xfs() ;
125 FILESYSTEM_MAP[ FS_BITLOCKER ] = NULL ;
Fix by deleting all FILESYSTEM_MAP pointers. Note that delete on a NULL
pointer is defined by C++ as a safe do nothing operation.
C++ FAQ / Do I need to check for null before delete p?
https://isocpp.org/wiki/faq/freestore-mgmt#delete-handles-null
Fixing this reduces the valgrind reported definitely lost memory blocks
count from 25 down to 6. 19 FileSystem objects deleted and 19 memory
blocks no longer lost.
Bug 749036 - FileSystem objects are memory leaked in init_filesystems()
Background:
GParted_Core::calibrate_partition() reloads the partition path name and
boundary to ensure they are correct before the operation is performed.
(See comments in calibrate_partition() for the reasons why this is
necessary). This also displays details of the partition being modified
in the operation details to inform the user.
The operation object contains these relevant member objects:
* partition_original
Partition before the operation is applied.
* partition_new
Partition as it is intended to be after the operation has been
applied.
* partition_copied (for the copy operation only)
Source partition being copied.
Issues:
GParted_Core::apply_operation_to_disk() was always calibrating partition
object partition_original, but for about half the operations
partition_original was not used and partition_new is used, so should be
calibrated instead.
Copy into an existing partition calibrated three partitions, the source,
destination before and destination after the operation was applied.
This doesn't really make sense in the operation details to the user.
They would expect to only see the source and destination partitions and
don't care about the distinction between the before and after
representation of the destination.
Minor issues:
The previous fix had to copy the correct partition path from the
calibrated partition_original object to the used partition_new object
for the format, label file system, name partition and change uuid
operations.
Calibrate was called for the create operation too, even though the
partition didn't yet exist. It was a no-operation.
Fix:
Stop always calibrating the partition_original object and instead
calibrate the correct partition object in each operation case. For the
copy into existing partition operation only calibrate the right two
partition objects as the user would expect.
Bug 746559 - Various operations fail when following paste into existing
partition
Format, label file system and new UUID operations would fail when
applied in a sequence to the destination partition following a previous
copy-paste operation.
Giving the copy of a file system a new label and a new UUID are the sort
of actions which should be performed when the disk containing the copy
remains attached to the same computer. This really should work.
Fragment of the failing operation details for a copy and label operation
sequence:
+ Copy /dev/sdb1 to /dev/sdb2
+ calibrate /dev/sdb2
+ calibrate copy of /dev/sdb1
+ calibrate /dev/sdb1
+ check the file system on /dev/sdb1 for errors and (if possible fix them
+ copy file system of /dev/sdb1 to /dev/sdb2
+ Set file system label "small-dst" on copy of /dev/sdb1
+ calibrate copy of /dev/sdb1
path: /dev/sdb2 (partition)
...
+ set file system label to "small-dst" on copy of /dev/sdb1
+ e2label copy of /dev/sdb1 "small-dst"
Usage: e2label device [newlabel]
This is failing because the file system specific command is passed
"copy of /dev/sdb1" as the device name. Code sequence:
1) OperationCopy::OperationCopy() sets the real path name of the
partition_new object to "copy of /dev/SRC" for display purposes.
2) GParted_Core::apply_operation_to_disk() calls calibrate_partition()
on partition_original object, restoring the real path name for
object partition_original.
3) apply_operation_to_disk() calls format(), label_filesystem() or
change_uuid() on the partition_new object, which still has the real
path name set to "copy of /dev/SRC". File system specific commands
fail with this as a path name.
Fix by copying the real path name from object partition_original to
partition_new, as is already done for the resize/move operation. Also
apply this fix to the name partition operation, because it uses the
partition_new object and so that it displays the real path name in the
operation details.
Bug 746559 - Various operations fail when following paste into existing
partition
When the partition is named in the Create New Partition dialog, set the
partition name as part of the create partition operation. Currently
this is only supported for GPTs. See
Utils::get_max_partition_name_length() for details.
Bug 746214 - Partition naming enhancements
Add a partition name entry box to the Create New Partition dialog. The
entry box is greyed out (not sensitive) for partition table types which
don't support partition naming. Currently only supported for GPTs. See
Utils::get_max_partition_name_length() for details.
There was a slightly wider gap between the file system combobox row and
the label entry row when there were only three widgets on the right hand
side of the dialog. This has been removed now that there are four
widgets so that they are all evenly spaced and they line up with the
four widgets on the left hand side.
So far the partition name can be entered and previewed, but isn't yet
applied to the disk.
Bug 746214 - Partition naming enhancements
Adding a partition name entry to the Create New Partition dialog will
need access to these two Device methods: partition_naming_supported()
and get_max_partition_length(). The Set_Data() function already takes
two parameters, only_unformatted and disktype, taken from Device member
variables.
Rather than add two more parameters to the Set_Data() function pass the
Device object instead, replacing the current only_unformatted and
disktype parameters.
Bug 746214 - Partition name enhancements
This is a small tidy-up to remove Gtk::Entry method calls on the file
system label entry box in the Create New Partition dialog which serve no
purpose.
filesystem_label_entry.set_activates_default( true );
It trying to make the Create New Partition dialog automatically
close when Enter is pressed with focus in the label entry box.
However this doesn't work, presumably because the default widget for
the dialog is not the Add button. Remove.
filesystem_label_entry.set_text( partition.get_filesystem_label() );
Initialises the text in the entry box with the file system label
from the passed partition object. The label is blank and the entry
box defaults to blank. Achieves nothing. Remove.
filesystem_label_entry.select_region( 0, filesystem_label_entry.get_text_length() );
Highlights the empty text in the entry box. Achieves nothing.
Remove.
NOTE:
The same set of Gtk::Entry method calls in Dialog_FileSystem_Label() and
Dialog_Partition_Name, which are editing the existing file system label
and partition name respectively, do work and have a useful effect so
shouldn't be removed.
Rename Gtk::Entry object entry -> filesystem_label_entry in the
Dialog_Partition_New class. This is in preparation for the introduction
of the partition name entry box in the Create New Partition dialog.
Bug 746214 - Partition name enhancements
Preview of the format operation cleared the partition name, yet when
applied, the partition name reappeared. Fix the preview to reflect
reality.
Bug 746214 - Partition naming enhancements
Previously partition naming had only been implemented for gpt. Make the
code ready to support naming of the other partition table types for
which libparted supports naming. Specifically: amiga, dvh, mac and
pc98 in addition to gpt. Document issues found with some of these
partition table types, which can relatively easily been worked around.
Leave support of naming for partition table types other than gpt
disabled, mostly just to reduce ongoing testing effort, at least until
there is any user demand for it.
Bug 746214 - Partition naming enhancements
Allow partition names to be changed whether or not the partition is
busy, rather than only when not busy, because it doesn't effect the busy
file system or change the partition boundaries in any way.
Bug 746214 - Partition naming enhancements
Attempting to create a new partition on a pc98 partition table fails
with the following libparted error:
The flag 'lvm' is not available for pc98 disk labels.
This has been broken since LVM2 Physical Volume read-write support was
first added in this commit:
c3ab62591b
Add creation of LVM2 PVs (#670171)
Fix by only clearing and setting the lvm partition flag when the type of
the partition table supports it. When creating a partition to contain
an LVM2 PV and the lvm flag is not support add the following message to
the operation results to explain that setting the lvm partition flag was
skipped and why:
Skip setting unsupported partition flag: lvm
Bug 746204 - Creating partitions on pc98 table fails with lvm flag not
available
Refactor GParted_Core::set_partition_type().
1) Set lp_partition variable earlier and use a single if lp_partition
set condition, rather than in both if conditions for the normal file
system case and the LVM2 Physical Volume case.
2) Stop calling Utils::get_filesystem_string() multiple times, instead
save the result in a local variable.
Tidies the code a little and reorders it in preparation for the
following fix to only set the lvm partition flag when support, making
that code change simpler.
Bug 746204 - Creating partitions on pc98 table fails with lvm flag not
available
In order to prevent potential corruption of newly created file systems,
when available use udisks2-inhibit with gpartedbin execution to prevent
automounting.
Original report:
Xubuntu install fail due partition auto mount defeats Gparted
https://bugs.launchpad.net/ubuntu/+source/thunar/+bug/1078445
Some GNU/Linux distributions use the udisks2 "udisksd" daemon and have
udisks2-inhibit at a known location. The known location is not in the
default PATH environment variable.
One known distribution that matches this criteria is xubuntu 14.04.
Interestingly neither kubuntu 14.04 nor ubuntu 14.04 appear to have the
udisks2 "udisksd" daemon running and do not suffer from this specific
automounting problem.
Bug 745349 - gparted wrapper script needs updated for udisks2
GParted now recognizes file system formats on disk devices without
partition tables. Update the manual with:
- how to format a disk device without a partition table
- manage flags not available for devices without partition tables
- use format to cleared to delete a file system from an unpartitioned
disk
Bug 743181 - Add unpartitioned drive read-write support
resize_move() and move() stopped using the device parameter in this
commit from 2006-07-23:
d663c3c277
removed cylindersize buffering during resize from the filesystems. It is
create() stopped using the device parameter in this commit from 2006-03-19:
ad9f2126e7
fixed issues with copying (see also #335004) cleanups + added FIXME added
For reference most other operation methods had the device parameter
removed in this earlier commit from 2005-12-07:
642f0a145b
from now on each partition has a reference to it's device. make use of new
Mike Fleetwood