Re: [Qemu-devel] [PATCH v2] nbd: fix the co_queue multi-adding bug

2015-02-12 Thread Stefan Hajnoczi
On Tue, Feb 10, 2015 at 03:20:46PM +0800, Bin Wu wrote: > From: Bin Wu > > When we tested the VM migartion between different hosts with NBD > devices, we found if we sent a cancel command after the drive_mirror > was just started, a coroutine re-enter error would occur. The stack > was as follow:

Re: [Qemu-devel] [PATCH v2] nbd: fix the co_queue multi-adding bug

2015-02-10 Thread Paolo Bonzini
On 10/02/2015 08:20, Bin Wu wrote: > From: Bin Wu > > When we tested the VM migartion between different hosts with NBD > devices, we found if we sent a cancel command after the drive_mirror > was just started, a coroutine re-enter error would occur. The stack > was as follow: > > (gdb) bt > 00

[Qemu-devel] [PATCH v2] nbd: fix the co_queue multi-adding bug

2015-02-09 Thread Bin Wu
From: Bin Wu When we tested the VM migartion between different hosts with NBD devices, we found if we sent a cancel command after the drive_mirror was just started, a coroutine re-enter error would occur. The stack was as follow: (gdb) bt 00) 0x7fdfc744d885 in raise () from /lib64/libc.so.6