* [Qemu-devel] [Bug 1749016] [NEW] VHDX BAT and Metadata Region Header Required Bit Not Set
@ 2018-02-12 21:44 Michael Fruchtman
2018-03-06 11:03 ` Stefan Hajnoczi
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Michael Fruchtman @ 2018-02-12 21:44 UTC (permalink / raw)
To: qemu-devel
Public bug reported:
When converting a VMDK to VHDX the resulting VHDX's Region table has a
small error. According to the VHDX specification the BAT and Metadata
entries for the region header required bit should be set to 1. In a
VHDX created by qemu-img, this bit is not set.
See Table 4: Known Region Properties of the VHDX specification.
The structure format is as following from Structure 4: Region Table
Entry:
struct VHDX_REGION_TABLE_ENTRY {
GUID Guid;
UINT64 FileOffset;
UINT32 Length;
UINT32 Required:1;
UINT32 Reserved:31;
}
The Required bit for VHDX specified BAT and Metadata Regions Required
bit in the entry is not set as required in the current specification.
VHDX Region Table in a valid VHDX
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 01 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 01 00 00 00
VHDX Region Table in a VHDX converted by qemu-img from VMDK
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 00 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 00 00 00 00
The fist bit at 0x0003002A and 0x0003004A should be set to 1.
** Affects: qemu
Importance: Undecided
Status: New
** Tags: qemu-img vhdx
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1749016
Title:
VHDX BAT and Metadata Region Header Required Bit Not Set
Status in QEMU:
New
Bug description:
When converting a VMDK to VHDX the resulting VHDX's Region table has a
small error. According to the VHDX specification the BAT and Metadata
entries for the region header required bit should be set to 1. In a
VHDX created by qemu-img, this bit is not set.
See Table 4: Known Region Properties of the VHDX specification.
The structure format is as following from Structure 4: Region Table
Entry:
struct VHDX_REGION_TABLE_ENTRY {
GUID Guid;
UINT64 FileOffset;
UINT32 Length;
UINT32 Required:1;
UINT32 Reserved:31;
}
The Required bit for VHDX specified BAT and Metadata Regions Required
bit in the entry is not set as required in the current specification.
VHDX Region Table in a valid VHDX
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 01 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 01 00 00 00
VHDX Region Table in a VHDX converted by qemu-img from VMDK
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 00 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 00 00 00 00
The fist bit at 0x0003002A and 0x0003004A should be set to 1.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1749016/+subscriptions
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] [Bug 1749016] [NEW] VHDX BAT and Metadata Region Header Required Bit Not Set
2018-02-12 21:44 [Qemu-devel] [Bug 1749016] [NEW] VHDX BAT and Metadata Region Header Required Bit Not Set Michael Fruchtman
@ 2018-03-06 11:03 ` Stefan Hajnoczi
2021-04-21 6:25 ` [Bug 1749016] " Thomas Huth
2021-06-21 4:17 ` Launchpad Bug Tracker
2 siblings, 0 replies; 4+ messages in thread
From: Stefan Hajnoczi @ 2018-03-06 11:03 UTC (permalink / raw)
To: Bug 1749016; +Cc: qemu-devel, Jeff Cody
[-- Attachment #1: Type: text/plain, Size: 4081 bytes --]
On Mon, Feb 12, 2018 at 09:44:09PM -0000, Michael Fruchtman wrote:
> Public bug reported:
>
> When converting a VMDK to VHDX the resulting VHDX's Region table has a
> small error. According to the VHDX specification the BAT and Metadata
> entries for the region header required bit should be set to 1. In a
> VHDX created by qemu-img, this bit is not set.
CCing Jeff Cody, VHDX maintainer.
>
> See Table 4: Known Region Properties of the VHDX specification.
>
> The structure format is as following from Structure 4: Region Table
> Entry:
>
> struct VHDX_REGION_TABLE_ENTRY {
> GUID Guid;
> UINT64 FileOffset;
> UINT32 Length;
> UINT32 Required:1;
> UINT32 Reserved:31;
> }
>
> The Required bit for VHDX specified BAT and Metadata Regions Required
> bit in the entry is not set as required in the current specification.
>
> VHDX Region Table in a valid VHDX
>
> Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
> 0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
> 0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 01 00 00 00
> 0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
> 0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 01 00 00 00
>
> VHDX Region Table in a VHDX converted by qemu-img from VMDK
>
> Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
> 0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
> 0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 00 00 00 00
> 0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
> 0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 00 00 00 00
>
> The fist bit at 0x0003002A and 0x0003004A should be set to 1.
>
> ** Affects: qemu
> Importance: Undecided
> Status: New
>
>
> ** Tags: qemu-img vhdx
>
> --
> You received this bug notification because you are a member of qemu-
> devel-ml, which is subscribed to QEMU.
> https://bugs.launchpad.net/bugs/1749016
>
> Title:
> VHDX BAT and Metadata Region Header Required Bit Not Set
>
> Status in QEMU:
> New
>
> Bug description:
> When converting a VMDK to VHDX the resulting VHDX's Region table has a
> small error. According to the VHDX specification the BAT and Metadata
> entries for the region header required bit should be set to 1. In a
> VHDX created by qemu-img, this bit is not set.
>
> See Table 4: Known Region Properties of the VHDX specification.
>
> The structure format is as following from Structure 4: Region Table
> Entry:
>
> struct VHDX_REGION_TABLE_ENTRY {
> GUID Guid;
> UINT64 FileOffset;
> UINT32 Length;
> UINT32 Required:1;
> UINT32 Reserved:31;
> }
>
> The Required bit for VHDX specified BAT and Metadata Regions Required
> bit in the entry is not set as required in the current specification.
>
> VHDX Region Table in a valid VHDX
>
> Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
> 0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
> 0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 01 00 00 00
> 0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
> 0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 01 00 00 00
>
> VHDX Region Table in a VHDX converted by qemu-img from VMDK
>
> Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
> 0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
> 0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 00 00 00 00
> 0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
> 0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 00 00 00 00
>
> The fist bit at 0x0003002A and 0x0003004A should be set to 1.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1749016/+subscriptions
>
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug 1749016] Re: VHDX BAT and Metadata Region Header Required Bit Not Set
2018-02-12 21:44 [Qemu-devel] [Bug 1749016] [NEW] VHDX BAT and Metadata Region Header Required Bit Not Set Michael Fruchtman
2018-03-06 11:03 ` Stefan Hajnoczi
@ 2021-04-21 6:25 ` Thomas Huth
2021-06-21 4:17 ` Launchpad Bug Tracker
2 siblings, 0 replies; 4+ messages in thread
From: Thomas Huth @ 2021-04-21 6:25 UTC (permalink / raw)
To: qemu-devel
The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience.
** Changed in: qemu
Status: New => Incomplete
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1749016
Title:
VHDX BAT and Metadata Region Header Required Bit Not Set
Status in QEMU:
Incomplete
Bug description:
When converting a VMDK to VHDX the resulting VHDX's Region table has a
small error. According to the VHDX specification the BAT and Metadata
entries for the region header required bit should be set to 1. In a
VHDX created by qemu-img, this bit is not set.
See Table 4: Known Region Properties of the VHDX specification.
The structure format is as following from Structure 4: Region Table
Entry:
struct VHDX_REGION_TABLE_ENTRY {
GUID Guid;
UINT64 FileOffset;
UINT32 Length;
UINT32 Required:1;
UINT32 Reserved:31;
}
The Required bit for VHDX specified BAT and Metadata Regions Required
bit in the entry is not set as required in the current specification.
VHDX Region Table in a valid VHDX
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 01 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 01 00 00 00
VHDX Region Table in a VHDX converted by qemu-img from VMDK
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 00 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 00 00 00 00
The fist bit at 0x0003002A and 0x0003004A should be set to 1.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1749016/+subscriptions
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug 1749016] Re: VHDX BAT and Metadata Region Header Required Bit Not Set
2018-02-12 21:44 [Qemu-devel] [Bug 1749016] [NEW] VHDX BAT and Metadata Region Header Required Bit Not Set Michael Fruchtman
2018-03-06 11:03 ` Stefan Hajnoczi
2021-04-21 6:25 ` [Bug 1749016] " Thomas Huth
@ 2021-06-21 4:17 ` Launchpad Bug Tracker
2 siblings, 0 replies; 4+ messages in thread
From: Launchpad Bug Tracker @ 2021-06-21 4:17 UTC (permalink / raw)
To: qemu-devel
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1749016
Title:
VHDX BAT and Metadata Region Header Required Bit Not Set
Status in QEMU:
Expired
Bug description:
When converting a VMDK to VHDX the resulting VHDX's Region table has a
small error. According to the VHDX specification the BAT and Metadata
entries for the region header required bit should be set to 1. In a
VHDX created by qemu-img, this bit is not set.
See Table 4: Known Region Properties of the VHDX specification.
The structure format is as following from Structure 4: Region Table
Entry:
struct VHDX_REGION_TABLE_ENTRY {
GUID Guid;
UINT64 FileOffset;
UINT32 Length;
UINT32 Required:1;
UINT32 Reserved:31;
}
The Required bit for VHDX specified BAT and Metadata Regions Required
bit in the entry is not set as required in the current specification.
VHDX Region Table in a valid VHDX
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 01 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 01 00 00 00
VHDX Region Table in a VHDX converted by qemu-img from VMDK
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
0x00030000 72 65 67 69 AE 8C 6B C6 02 00 00 00 00 00 00 00
0x00030010 66 77 C2 2D 23 F6 00 42 9D 64 11 5E 9B FD 4A 08
0x00030020 00 00 30 00 00 00 00 00 00 00 10 00 00 00 00 00
0x00030030 06 A2 7C 8B 90 47 9A 4B B8 FE 57 5F 05 0F 88 6E
0x00030040 00 00 20 00 00 00 00 00 00 00 10 00 00 00 00 00
The fist bit at 0x0003002A and 0x0003004A should be set to 1.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1749016/+subscriptions
^ permalink raw reply [flat|nested] 4+ messages in thread
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2018-02-12 21:44 [Qemu-devel] [Bug 1749016] [NEW] VHDX BAT and Metadata Region Header Required Bit Not Set Michael Fruchtman
2018-03-06 11:03 ` Stefan Hajnoczi
2021-04-21 6:25 ` [Bug 1749016] " Thomas Huth
2021-06-21 4:17 ` Launchpad Bug Tracker
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