[Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-18 Thread pranith
** Changed in: qemu Status: Incomplete => Confirmed -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1681688 Title: qemu live migration failed Status in QEMU: Confirmed Bug description: q

[Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-18 Thread pranith
** 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/1681688 Title: qemu live migration failed Status in QEMU: Incomplete Bug description: qemu l

Re: [Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-11 Thread Laurent Vivier
On 11/04/2017 15:57, Kevin Wolf wrote: > Am 11.04.2017 um 15:35 hat 858585 jemmy geschrieben: >> Hi Kevin: >>Can you provide some information about the original bug which you want >> fix? >> >>the original comment: >>Usually guest devices don't like other writers to the same image, so

Re: [Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-11 Thread Laurent Vivier
On 11/04/2017 15:57, Kevin Wolf wrote: > Am 11.04.2017 um 15:35 hat 858585 jemmy geschrieben: >> Hi Kevin: >>Can you provide some information about the original bug which you want >> fix? >> >>the original comment: >>Usually guest devices don't like other writers to the same image, so

Re: [Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-11 Thread Kevin Wolf
Am 11.04.2017 um 15:35 hat 858585 jemmy geschrieben: > Hi Kevin: >Can you provide some information about the original bug which you want fix? > >the original comment: >Usually guest devices don't like other writers to the same image, so >they use blk_set_perm() to prevent this from

Re: [Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-11 Thread 858585 jemmy
Hi Kevin: Can you provide some information about the original bug which you want fix? the original comment: Usually guest devices don't like other writers to the same image, so they use blk_set_perm() to prevent this from happening. i don't find where the dest qemu will use blk_set

[Qemu-devel] [Bug 1681688] Re: qemu live migration failed

2017-04-11 Thread Lidong Chen
blk->root->perm is 1 when blk_new_open. the blk->root->perm is update to 3 during virtio_blk_device_realize. but after this commit, the blk->root->perm is still 1. and cause bdrv_aligned_pwritev failed. Breakpoint 1, blk_set_perm (blk=0x14c32b0, perm=3, shared_perm=29, errp=0x7fffd380) at b