Public bug reported: When attempting to convert Microsoft's 10X emulator image (19563) vhdx [1], qemu-img terminates abruptly with an assertion failure. (Newer versions of the vhdx exhibit the same issue.)
> qemu-img.exe convert flash.vhdx flash.vhd ** ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0) Bail out! ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0) Exception code=0x80000003 flags=0x0 at 0x00007FFAFDC59302 Tested with qemu-img.exe --version qemu-img version 4.2.50 (v4.2.0-676-g3a63b24a1b-dirty) Possibly related: 1719870 Partial Powershell cmdlet output: PS> Get-Vhd flash.vhdx VhdFormat : VHDX VhdType : Dynamic FileSize : 8365539328 Size : 137438953472 MinimumSize : 137438953472 LogicalSectorSize : 4096 PhysicalSectorSize : 4096 BlockSize : 1048576 ParentPath : DiskIdentifier : 7BE7C459-AE5D-451A-9368-05875120F702 FragmentationPercentage : 11 Alignment : 1 Attached : False DiskNumber : IsPMEMCompatible : False AddressAbstractionType : None Number : [1] https://1drv.ms/u/s!AnjdAnZZcu-GpNFK_-tcNAq_4Aug8w?e=5JB6s0 ** Affects: qemu Importance: Undecided Status: New ** Tags: qemu-img ** Description changed: When attempting to convert Microsoft's 10X emulator image (19563) vhdx [1], qemu-img terminates abruptly with an assertion failure. (Newer versions of the vhdx exhibit the same issue.) + + > qemu-img.exe convert flash.vhdx flash.vhd + ** + ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0) + Bail out! ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0) + Exception code=0x80000003 flags=0x0 at 0x00007FFAFDC59302 Tested with qemu-img.exe --version qemu-img version 4.2.50 (v4.2.0-676-g3a63b24a1b-dirty) Possibly related: 1719870 Partial Powershell cmdlet output: PS> Get-Vhd flash.vhdx VhdFormat : VHDX VhdType : Dynamic FileSize : 8365539328 Size : 137438953472 MinimumSize : 137438953472 LogicalSectorSize : 4096 PhysicalSectorSize : 4096 BlockSize : 1048576 ParentPath : DiskIdentifier : 7BE7C459-AE5D-451A-9368-05875120F702 FragmentationPercentage : 11 Alignment : 1 Attached : False DiskNumber : IsPMEMCompatible : False AddressAbstractionType : None Number : - [1] https://1drv.ms/u/s!AnjdAnZZcu-GpNFK_-tcNAq_4Aug8w?e=5JB6s0 -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1870039 Title: windows qemu-img fails to convert vhdx, assertion failure Status in QEMU: New Bug description: When attempting to convert Microsoft's 10X emulator image (19563) vhdx [1], qemu-img terminates abruptly with an assertion failure. (Newer versions of the vhdx exhibit the same issue.) > qemu-img.exe convert flash.vhdx flash.vhd ** ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0) Bail out! ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0) Exception code=0x80000003 flags=0x0 at 0x00007FFAFDC59302 Tested with qemu-img.exe --version qemu-img version 4.2.50 (v4.2.0-676-g3a63b24a1b-dirty) Possibly related: 1719870 Partial Powershell cmdlet output: PS> Get-Vhd flash.vhdx VhdFormat : VHDX VhdType : Dynamic FileSize : 8365539328 Size : 137438953472 MinimumSize : 137438953472 LogicalSectorSize : 4096 PhysicalSectorSize : 4096 BlockSize : 1048576 ParentPath : DiskIdentifier : 7BE7C459-AE5D-451A-9368-05875120F702 FragmentationPercentage : 11 Alignment : 1 Attached : False DiskNumber : IsPMEMCompatible : False AddressAbstractionType : None Number : [1] https://1drv.ms/u/s!AnjdAnZZcu-GpNFK_-tcNAq_4Aug8w?e=5JB6s0 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1870039/+subscriptions
