--- Begin Message ---
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Subject: |
parted crashed when extended partition doesn't start on physical sector boundary |
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Date: |
Mon, 13 May 2019 16:23:15 +0200 |
Hello developer team.
parted crashed when extended partition doesn't
start on physical sector boundary.
On my older laptop's HDD the extended partition isn't aligned to
4096 bytes boundary but to 512 bytes. This is not really a problem
because extended partition has only one sector in size and the speed
reduction due to unaligned partition is not likely to be noticeable.
parted never should crash when reading such a partition table!
Please fix ASAP because this bug is at least five years old and has
many entries in Google search.
Output of: 'parted /dev/sda unit co print unit s print'
------
Backtrace has 14 calls on stack:
14: /lib/i386-linux-gnu/libparted.so.2(ped_assert+0x51) [0xb76cd471]
13: /lib/i386-linux-gnu/libparted.so.2(+0x2320a) [0xb76e820a]
12: /lib/i386-linux-gnu/libparted.so.2(+0xdaf8) [0xb76d2af8]
11: /lib/i386-linux-gnu/libparted.so.2(ped_disk_add_partition+0x2ac)
[0xb76d34fc]
10: /lib/i386-linux-gnu/libparted.so.2(+0x22af7) [0xb76e7af7]
9: /lib/i386-linux-gnu/libparted.so.2(+0x22bee) [0xb76e7bee]
8: /lib/i386-linux-gnu/libparted.so.2(+0x22b30) [0xb76e7b30]
7: /lib/i386-linux-gnu/libparted.so.2(+0x23e60) [0xb76e8e60]
6: /lib/i386-linux-gnu/libparted.so.2(ped_disk_new+0x5b) [0xb76d30cb]
5: parted(+0x682b) [0x8007282b]
4: parted(non_interactive_mode+0x8f) [0x800780bf]
3: parted(main+0x10e3) [0x80070713]
2: /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf6) [0xb74b8286]
1: parted(+0x489c) [0x8007089c]
[..]
Assertion (metadata_length > 0) at ../../../libparted/labels/dos.c:2313
in function add_logical_part_metadata() failed.
------
Output of: 'fdisk -l /dev/sda'
------------
Disk /dev/sda: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xbfd1a1b9
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 206847 204800 100M 83 Linux
/dev/sda2 * 206848 335636479 335429632 160G 7 HPFS/NTFS/exFAT
/dev/sda3 335636480 335699967 63488 31M ef EFI (FAT-12/16/32)
/dev/sda4 335703422 1953524292 1617820871 771,4G 5 Extended
/dev/sda5 335706112 339899775 4193664 2G 82 Linux swap / Solaris
/dev/sda6 339899776 457083369 117183594 55,9G 83 Linux
/dev/sda7 457085424 574269935 117184512 55,9G 83 Linux
/dev/sda8 574271984 1530140671 955868688 455,8G 83 Linux
/dev/sda9 1530142720 1851125759 320983040 153,1G 83 Linux
/dev/sda10 1851127808 1953319492 102191685 48,7G 83 Linux
/dev/sda11 1953323008 1953524292 201285 98,3M 83 Linux
------------
Best regards
Jens
--- End Message ---
--- Begin Message ---
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Subject: |
Re: bug#35715: parted crashed when extended partition doesn't start on physical sector boundary |
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Date: |
Thu, 16 May 2019 14:05:07 -0400 |
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User-agent: |
mu4e 0.9.18; emacs 25.2.2 |
This has nothing to do with alignment; it is because your first and
second extended partitions have no space between them to hold the EBR.
This space has been required by parted always and in the past all other
partitioning tools were believed to honor this requirement, but for some
unknown reason, a few people every now and then somehow find another
partititiong tool that lays out their table this way and parted won't
accept it.
Jens Schmidt writes:
> Hello developer team.
>
> parted crashed when extended partition doesn't
> start on physical sector boundary.
>
> On my older laptop's HDD the extended partition isn't aligned to
> 4096 bytes boundary but to 512 bytes. This is not really a problem
> because extended partition has only one sector in size and the speed
> reduction due to unaligned partition is not likely to be noticeable.
>
> parted never should crash when reading such a partition table!
>
> Please fix ASAP because this bug is at least five years old and has
> many entries in Google search.
>
>
> Output of: 'parted /dev/sda unit co print unit s print'
> ------
> Backtrace has 14 calls on stack:
> 14: /lib/i386-linux-gnu/libparted.so.2(ped_assert+0x51) [0xb76cd471]
> 13: /lib/i386-linux-gnu/libparted.so.2(+0x2320a) [0xb76e820a]
> 12: /lib/i386-linux-gnu/libparted.so.2(+0xdaf8) [0xb76d2af8]
> 11: /lib/i386-linux-gnu/libparted.so.2(ped_disk_add_partition+0x2ac)
> [0xb76d34fc]
> 10: /lib/i386-linux-gnu/libparted.so.2(+0x22af7) [0xb76e7af7]
> 9: /lib/i386-linux-gnu/libparted.so.2(+0x22bee) [0xb76e7bee]
> 8: /lib/i386-linux-gnu/libparted.so.2(+0x22b30) [0xb76e7b30]
> 7: /lib/i386-linux-gnu/libparted.so.2(+0x23e60) [0xb76e8e60]
> 6: /lib/i386-linux-gnu/libparted.so.2(ped_disk_new+0x5b) [0xb76d30cb]
> 5: parted(+0x682b) [0x8007282b]
> 4: parted(non_interactive_mode+0x8f) [0x800780bf]
> 3: parted(main+0x10e3) [0x80070713]
> 2: /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf6) [0xb74b8286]
> 1: parted(+0x489c) [0x8007089c]
>
> [..]
>
> Assertion (metadata_length > 0) at ../../../libparted/labels/dos.c:2313
> in function add_logical_part_metadata() failed.
> ------
>
>
> Output of: 'fdisk -l /dev/sda'
> ------------
> Disk /dev/sda: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 4096 bytes
> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
> Disklabel type: dos
> Disk identifier: 0xbfd1a1b9
>
> Device Boot Start End Sectors Size Id Type
> /dev/sda1 2048 206847 204800 100M 83 Linux
> /dev/sda2 * 206848 335636479 335429632 160G 7 HPFS/NTFS/exFAT
> /dev/sda3 335636480 335699967 63488 31M ef EFI (FAT-12/16/32)
> /dev/sda4 335703422 1953524292 1617820871 771,4G 5 Extended
> /dev/sda5 335706112 339899775 4193664 2G 82 Linux swap /
> Solaris
> /dev/sda6 339899776 457083369 117183594 55,9G 83 Linux
> /dev/sda7 457085424 574269935 117184512 55,9G 83 Linux
> /dev/sda8 574271984 1530140671 955868688 455,8G 83 Linux
> /dev/sda9 1530142720 1851125759 320983040 153,1G 83 Linux
> /dev/sda10 1851127808 1953319492 102191685 48,7G 83 Linux
> /dev/sda11 1953323008 1953524292 201285 98,3M 83 Linux
> ------------
>
>
> Best regards
> Jens
--- End Message ---