restructure results

3 files changed, 0 insertions, 1907 deletions

diff --git a/results/classifier/014/peripherals/56937788 b/results/classifier/014/peripherals/56937788
deleted file mode 100644
index 82617706..00000000
--- a/results/classifier/014/peripherals/56937788
+++ /dev/null
@@ -1,371 +0,0 @@
-peripherals: 0.807
-user-level: 0.794
-risc-v: 0.773
-hypervisor: 0.765
-TCG: 0.760
-KVM: 0.755
-vnc: 0.743
-mistranslation: 0.735
-VMM: 0.731
-virtual: 0.730
-ppc: 0.728
-debug: 0.723
-graphic: 0.720
-operating system: 0.713
-register: 0.706
-semantic: 0.705
-device: 0.697
-i386: 0.694
-x86: 0.693
-performance: 0.692
-permissions: 0.685
-files: 0.680
-arm: 0.665
-assembly: 0.638
-boot: 0.636
-network: 0.633
-alpha: 0.631
-architecture: 0.627
-PID: 0.620
-socket: 0.613
-kernel: 0.594
-
-[Qemu-devel] [Bug] virtio-blk: qemu will crash if hotplug virtio-blk device failed
-
-I found that hotplug virtio-blk device will lead to qemu crash.
-
-Re-production steps:
-
-1.       Run VM named vm001
-
-2.       Create a virtio-blk.xml which contains wrong configurations:
-<disk device="lun" rawio="yes" type="block">
-  <driver cache="none" io="native" name="qemu" type="raw" />
-  <source dev="/dev/mapper/11-dm" />
-  <target bus="virtio" dev="vdx" />
-</disk>
-
-3.       Run command : virsh attach-device vm001 vm001
-
-Libvirt will return err msg:
-
-error: Failed to attach device from blk-scsi.xml
-
-error: internal error: unable to execute QEMU command 'device_add': Please set 
-scsi=off for virtio-blk devices in order to use virtio 1.0
-
-it means hotplug virtio-blk device failed.
-
-4.       Suspend or shutdown VM will leads to qemu crash
-
-
-
-from gdb:
-
-
-(gdb) bt
-#0  object_get_class (address@hidden) at qom/object.c:750
-#1  0x00007f9a72582e01 in virtio_vmstate_change (opaque=0x7f9a73d10960, 
-running=0, state=<optimized out>) at 
-/mnt/sdb/lzc/code/open/qemu/hw/virtio/virtio.c:2203
-#2  0x00007f9a7261ef52 in vm_state_notify (address@hidden, address@hidden) at 
-vl.c:1685
-#3  0x00007f9a7252603a in do_vm_stop (state=RUN_STATE_PAUSED) at 
-/mnt/sdb/lzc/code/open/qemu/cpus.c:941
-#4  vm_stop (address@hidden) at /mnt/sdb/lzc/code/open/qemu/cpus.c:1807
-#5  0x00007f9a7262eb1b in qmp_stop (address@hidden) at qmp.c:102
-#6  0x00007f9a7262c70a in qmp_marshal_stop (args=<optimized out>, 
-ret=<optimized out>, errp=0x7ffe63e255d8) at qmp-marshal.c:5854
-#7  0x00007f9a72897e79 in do_qmp_dispatch (errp=0x7ffe63e255d0, 
-request=0x7f9a76510120, cmds=0x7f9a72ee7980 <qmp_commands>) at 
-qapi/qmp-dispatch.c:104
-#8  qmp_dispatch (cmds=0x7f9a72ee7980 <qmp_commands>, address@hidden) at 
-qapi/qmp-dispatch.c:131
-#9  0x00007f9a725288d5 in handle_qmp_command (parser=<optimized out>, 
-tokens=<optimized out>) at /mnt/sdb/lzc/code/open/qemu/monitor.c:3852
-#10 0x00007f9a7289d514 in json_message_process_token (lexer=0x7f9a73ce4498, 
-input=0x7f9a73cc6880, type=JSON_RCURLY, x=36, y=17) at 
-qobject/json-streamer.c:105
-#11 0x00007f9a728bb69b in json_lexer_feed_char (address@hidden, ch=125 '}', 
-address@hidden) at qobject/json-lexer.c:323
-#12 0x00007f9a728bb75e in json_lexer_feed (lexer=0x7f9a73ce4498, 
-buffer=<optimized out>, size=<optimized out>) at qobject/json-lexer.c:373
-#13 0x00007f9a7289d5d9 in json_message_parser_feed (parser=<optimized out>, 
-buffer=<optimized out>, size=<optimized out>) at qobject/json-streamer.c:124
-#14 0x00007f9a7252722e in monitor_qmp_read (opaque=<optimized out>, 
-buf=<optimized out>, size=<optimized out>) at 
-/mnt/sdb/lzc/code/open/qemu/monitor.c:3894
-#15 0x00007f9a7284ee1b in tcp_chr_read (chan=<optimized out>, cond=<optimized 
-out>, opaque=<optimized out>) at chardev/char-socket.c:441
-#16 0x00007f9a6e03e99a in g_main_context_dispatch () from 
-/usr/lib64/libglib-2.0.so.0
-#17 0x00007f9a728a342c in glib_pollfds_poll () at util/main-loop.c:214
-#18 os_host_main_loop_wait (timeout=<optimized out>) at util/main-loop.c:261
-#19 main_loop_wait (address@hidden) at util/main-loop.c:515
-#20 0x00007f9a724e7547 in main_loop () at vl.c:1999
-#21 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at 
-vl.c:4877
-
-Problem happens in virtio_vmstate_change which is called by vm_state_notify,
-static void virtio_vmstate_change(void *opaque, int running, RunState state)
-{
-    VirtIODevice *vdev = opaque;
-    BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
-    VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
-    bool backend_run = running && (vdev->status & VIRTIO_CONFIG_S_DRIVER_OK);
-    vdev->vm_running = running;
-
-    if (backend_run) {
-        virtio_set_status(vdev, vdev->status);
-    }
-
-    if (k->vmstate_change) {
-        k->vmstate_change(qbus->parent, backend_run);
-    }
-
-    if (!backend_run) {
-        virtio_set_status(vdev, vdev->status);
-    }
-}
-
-Vdev's parent_bus is NULL, so qdev_get_parent_bus(DEVICE(vdev)) will crash.
-virtio_vmstate_change is added to the list vm_change_state_head at 
-virtio_blk_device_realize(virtio_init),
-but after hotplug virtio-blk failed, virtio_vmstate_change will not be removed 
-from vm_change_state_head.
-
-
-I apply a patch as follews:
-
-diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
-index 5884ce3..ea532dc 100644
---- a/hw/virtio/virtio.c
-+++ b/hw/virtio/virtio.c
-@@ -2491,6 +2491,7 @@ static void virtio_device_realize(DeviceState *dev, Error 
-**errp)
-     virtio_bus_device_plugged(vdev, &err);
-     if (err != NULL) {
-         error_propagate(errp, err);
-+        vdc->unrealize(dev, NULL);
-         return;
-     }
-
-On Tue, Oct 31, 2017 at 05:19:08AM +0000, linzhecheng wrote:
->
-I found that hotplug virtio-blk device will lead to qemu crash.
-The author posted a patch in a separate email thread.  Please see
-"[PATCH] fix: unrealize virtio device if we fail to hotplug it".
-
->
-Re-production steps:
->
->
-1.       Run VM named vm001
->
->
-2.       Create a virtio-blk.xml which contains wrong configurations:
->
-<disk device="lun" rawio="yes" type="block">
->
-<driver cache="none" io="native" name="qemu" type="raw" />
->
-<source dev="/dev/mapper/11-dm" />
->
-<target bus="virtio" dev="vdx" />
->
-</disk>
->
->
-3.       Run command : virsh attach-device vm001 vm001
->
->
-Libvirt will return err msg:
->
->
-error: Failed to attach device from blk-scsi.xml
->
->
-error: internal error: unable to execute QEMU command 'device_add': Please
->
-set scsi=off for virtio-blk devices in order to use virtio 1.0
->
->
-it means hotplug virtio-blk device failed.
->
->
-4.       Suspend or shutdown VM will leads to qemu crash
->
->
->
->
-from gdb:
->
->
->
-(gdb) bt
->
-#0  object_get_class (address@hidden) at qom/object.c:750
->
-#1  0x00007f9a72582e01 in virtio_vmstate_change (opaque=0x7f9a73d10960,
->
-running=0, state=<optimized out>) at
->
-/mnt/sdb/lzc/code/open/qemu/hw/virtio/virtio.c:2203
->
-#2  0x00007f9a7261ef52 in vm_state_notify (address@hidden, address@hidden) at
->
-vl.c:1685
->
-#3  0x00007f9a7252603a in do_vm_stop (state=RUN_STATE_PAUSED) at
->
-/mnt/sdb/lzc/code/open/qemu/cpus.c:941
->
-#4  vm_stop (address@hidden) at /mnt/sdb/lzc/code/open/qemu/cpus.c:1807
->
-#5  0x00007f9a7262eb1b in qmp_stop (address@hidden) at qmp.c:102
->
-#6  0x00007f9a7262c70a in qmp_marshal_stop (args=<optimized out>,
->
-ret=<optimized out>, errp=0x7ffe63e255d8) at qmp-marshal.c:5854
->
-#7  0x00007f9a72897e79 in do_qmp_dispatch (errp=0x7ffe63e255d0,
->
-request=0x7f9a76510120, cmds=0x7f9a72ee7980 <qmp_commands>) at
->
-qapi/qmp-dispatch.c:104
->
-#8  qmp_dispatch (cmds=0x7f9a72ee7980 <qmp_commands>, address@hidden) at
->
-qapi/qmp-dispatch.c:131
->
-#9  0x00007f9a725288d5 in handle_qmp_command (parser=<optimized out>,
->
-tokens=<optimized out>) at /mnt/sdb/lzc/code/open/qemu/monitor.c:3852
->
-#10 0x00007f9a7289d514 in json_message_process_token (lexer=0x7f9a73ce4498,
->
-input=0x7f9a73cc6880, type=JSON_RCURLY, x=36, y=17) at
->
-qobject/json-streamer.c:105
->
-#11 0x00007f9a728bb69b in json_lexer_feed_char (address@hidden, ch=125 '}',
->
-address@hidden) at qobject/json-lexer.c:323
->
-#12 0x00007f9a728bb75e in json_lexer_feed (lexer=0x7f9a73ce4498,
->
-buffer=<optimized out>, size=<optimized out>) at qobject/json-lexer.c:373
->
-#13 0x00007f9a7289d5d9 in json_message_parser_feed (parser=<optimized out>,
->
-buffer=<optimized out>, size=<optimized out>) at qobject/json-streamer.c:124
->
-#14 0x00007f9a7252722e in monitor_qmp_read (opaque=<optimized out>,
->
-buf=<optimized out>, size=<optimized out>) at
->
-/mnt/sdb/lzc/code/open/qemu/monitor.c:3894
->
-#15 0x00007f9a7284ee1b in tcp_chr_read (chan=<optimized out>, cond=<optimized
->
-out>, opaque=<optimized out>) at chardev/char-socket.c:441
->
-#16 0x00007f9a6e03e99a in g_main_context_dispatch () from
->
-/usr/lib64/libglib-2.0.so.0
->
-#17 0x00007f9a728a342c in glib_pollfds_poll () at util/main-loop.c:214
->
-#18 os_host_main_loop_wait (timeout=<optimized out>) at util/main-loop.c:261
->
-#19 main_loop_wait (address@hidden) at util/main-loop.c:515
->
-#20 0x00007f9a724e7547 in main_loop () at vl.c:1999
->
-#21 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
->
-at vl.c:4877
->
->
-Problem happens in virtio_vmstate_change which is called by vm_state_notify,
->
-static void virtio_vmstate_change(void *opaque, int running, RunState state)
->
-{
->
-VirtIODevice *vdev = opaque;
->
-BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
->
-VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
->
-bool backend_run = running && (vdev->status & VIRTIO_CONFIG_S_DRIVER_OK);
->
-vdev->vm_running = running;
->
->
-if (backend_run) {
->
-virtio_set_status(vdev, vdev->status);
->
-}
->
->
-if (k->vmstate_change) {
->
-k->vmstate_change(qbus->parent, backend_run);
->
-}
->
->
-if (!backend_run) {
->
-virtio_set_status(vdev, vdev->status);
->
-}
->
-}
->
->
-Vdev's parent_bus is NULL, so qdev_get_parent_bus(DEVICE(vdev)) will crash.
->
-virtio_vmstate_change is added to the list vm_change_state_head at
->
-virtio_blk_device_realize(virtio_init),
->
-but after hotplug virtio-blk failed, virtio_vmstate_change will not be
->
-removed from vm_change_state_head.
->
->
->
-I apply a patch as follews:
->
->
-diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
->
-index 5884ce3..ea532dc 100644
->
---- a/hw/virtio/virtio.c
->
-+++ b/hw/virtio/virtio.c
->
-@@ -2491,6 +2491,7 @@ static void virtio_device_realize(DeviceState *dev,
->
-Error **errp)
->
-virtio_bus_device_plugged(vdev, &err);
->
-if (err != NULL) {
->
-error_propagate(errp, err);
->
-+        vdc->unrealize(dev, NULL);
->
-return;
->
-}
-signature.asc
-Description:
-PGP signature
-
diff --git a/results/classifier/014/peripherals/57756589 b/results/classifier/014/peripherals/57756589
deleted file mode 100644
index 5891931d..00000000
--- a/results/classifier/014/peripherals/57756589
+++ /dev/null
@@ -1,1448 +0,0 @@
-peripherals: 0.875
-hypervisor: 0.863
-mistranslation: 0.861
-register: 0.858
-architecture: 0.856
-device: 0.853
-vnc: 0.851
-virtual: 0.845
-permissions: 0.842
-assembly: 0.841
-performance: 0.839
-ppc: 0.838
-semantic: 0.835
-operating system: 0.835
-TCG: 0.833
-VMM: 0.833
-arm: 0.828
-boot: 0.827
-user-level: 0.826
-graphic: 0.824
-network: 0.822
-socket: 0.820
-PID: 0.819
-KVM: 0.817
-kernel: 0.817
-files: 0.816
-x86: 0.814
-alpha: 0.810
-debug: 0.803
-i386: 0.782
-risc-v: 0.755
-
-[Qemu-devel] 答复: Re:   答复: Re:  答复: Re: [BUG]COLO failover hang
-
-amost like wiki，but panic in Primary Node.
-
-
-
-
-setp:
-
-1 
-
-Primary Node.
-
-x86_64-softmmu/qemu-system-x86_64 -enable-kvm -boot c -m 2048 -smp 2 -qmp stdio 
--vnc :7 -name primary -cpu qemu64,+kvmclock -device piix3-usb-uhci -usb 
--usbdevice tablet\
-
-  -drive 
-if=virtio,id=colo-disk0,driver=quorum,read-pattern=fifo,vote-threshold=1,
-
-   
-children.0.file.filename=/mnt/sdd/pure_IMG/linux/redhat/rhel_6.5_64_2U_ide,children.0.driver=qcow2
- -S \
-
-  -netdev 
-tap,id=hn1,vhost=off,script=/etc/qemu-ifup2,downscript=/etc/qemu-ifdown2 \
-
-  -device e1000,id=e1,netdev=hn1,mac=52:a4:00:12:78:67 \
-
-  -netdev 
-tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown \
-
-  -device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66 \
-
-  -chardev socket,id=mirror0,host=9.61.1.8,port=9003,server,nowait -chardev 
-socket,id=compare1,host=9.61.1.8,port=9004,server,nowait \
-
-  -chardev socket,id=compare0,host=9.61.1.8,port=9001,server,nowait -chardev 
-socket,id=compare0-0,host=9.61.1.8,port=9001 \
-
-  -chardev socket,id=compare_out,host=9.61.1.8,port=9005,server,nowait \
-
-  -chardev socket,id=compare_out0,host=9.61.1.8,port=9005 \
-
-  -object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0 \
-
-  -object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out 
--object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0 \
-
-  -object 
-colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
-
-2 Second node:
-
-x86_64-softmmu/qemu-system-x86_64 -boot c -m 2048 -smp 2 -qmp stdio -vnc :7 
--name secondary -enable-kvm -cpu qemu64,+kvmclock -device piix3-usb-uhci -usb 
--usbdevice tablet\
-
-  -drive 
-if=none,id=colo-disk0,file.filename=/mnt/sdd/pure_IMG/linux/redhat/rhel_6.5_64_2U_ide,driver=qcow2,node-name=node0
- \
-
-  -drive 
-if=virtio,id=active-disk0,driver=replication,mode=secondary,file.driver=qcow2,top-id=active-disk0,file.file.filename=/mnt/ramfstest/active_disk.img,file.backing.driver=qcow2,file.backing.file.filename=/mnt/ramfstest/hidden_disk.img,file.backing.backing=colo-disk0
-  \
-
-   -netdev 
-tap,id=hn1,vhost=off,script=/etc/qemu-ifup2,downscript=/etc/qemu-ifdown2 \
-
-  -device e1000,id=e1,netdev=hn1,mac=52:a4:00:12:78:67 \
-
-  -netdev 
-tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown \
-
-  -device e1000,netdev=hn0,mac=52:a4:00:12:78:66 -chardev 
-socket,id=red0,host=9.61.1.8,port=9003 \
-
-  -chardev socket,id=red1,host=9.61.1.8,port=9004 \
-
-  -object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0 \
-
-  -object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1 \
-
-  -object filter-rewriter,id=rew0,netdev=hn0,queue=all -incoming tcp:0:8888
-
-3  Secondary node:
-
-{'execute':'qmp_capabilities'}
-
-{ 'execute': 'nbd-server-start',
-
-  'arguments': {'addr': {'type': 'inet', 'data': {'host': '9.61.1.7', 'port': 
-'8889'} } }
-
-}
-
-{'execute': 'nbd-server-add', 'arguments': {'device': 'colo-disk0', 'writable': 
-true } }
-
-4:Primary Node：
-
-{'execute':'qmp_capabilities'}
-
-
-{ 'execute': 'human-monitor-command',
-
-  'arguments': {'command-line': 'drive_add -n buddy 
-driver=replication,mode=primary,file.driver=nbd,file.host=9.61.1.7,file.port=8889,file.export=colo-disk0,node-name=node0'}}
-
-{ 'execute':'x-blockdev-change', 'arguments':{'parent': 'colo-disk0', 'node': 
-'node0' } }
-
-{ 'execute': 'migrate-set-capabilities',
-
-      'arguments': {'capabilities': [ {'capability': 'x-colo', 'state': true } 
-] } }
-
-{ 'execute': 'migrate', 'arguments': {'uri': 'tcp:9.61.1.7:8888' } }
-
-
-
-
-then can see two runing VMs, whenever you make changes to PVM, SVM will be 
-synced.  
-
-
-
-
-5：Primary Node：
-
-echo c ＞ /proc/sysrq-trigger
-
-
-
-
-６：Secondary node:
-
-{ 'execute': 'nbd-server-stop' }
-
-{ "execute": "x-colo-lost-heartbeat" }
-
-
-
-
-then can see the Secondary node hang at recvmsg recvmsg .
-
-
-
-
-
-
-
-
-
-
-
-
-原始邮件
-
-
-
-发件人： address@hidden
-收件人：王广10165992 address@hidden
-抄送人： address@hidden address@hidden
-日 期 ：2017年03月21日 16:27
-主 题 ：Re: [Qemu-devel]  答复: Re:  答复: Re: [BUG]COLO failover hang
-
-
-
-
-
-Hi,
-
-On 2017/3/21 16:10, address@hidden wrote:
-＞ Thank you。
-＞
-＞ I have test aready。
-＞
-＞ When the Primary Node panic,the Secondary Node qemu hang at the same place。
-＞
-＞ Incorrding
-http://wiki.qemu-project.org/Features/COLO
-，kill Primary Node qemu 
-will not produce the problem,but Primary Node panic can。
-＞
-＞ I think due to the feature of channel does not support 
-QIO_CHANNEL_FEATURE_SHUTDOWN.
-＞
-＞
-
-Yes, you are right, when we do failover for primary/secondary VM, we will 
-shutdown the related
-fd in case it is stuck in the read/write fd.
-
-It seems that you didn't follow the above introduction exactly to do the test. 
-Could you
-share your test procedures ? Especially the commands used in the test.
-
-Thanks,
-Hailiang
-
-＞ when failover,channel_shutdown could not shut down the channel.
-＞
-＞
-＞ so the colo_process_incoming_thread will hang at recvmsg.
-＞
-＞
-＞ I test a patch:
-＞
-＞
-＞ diff --git a/migration/socket.c b/migration/socket.c
-＞
-＞
-＞ index 13966f1..d65a0ea 100644
-＞
-＞
-＞ --- a/migration/socket.c
-＞
-＞
-＞ +++ b/migration/socket.c
-＞
-＞
-＞ @@ -147,8 +147,9 @@ static gboolean 
-socket_accept_incoming_migration(QIOChannel *ioc,
-＞
-＞
-＞       }
-＞
-＞
-＞
-＞
-＞
-＞       trace_migration_socket_incoming_accepted()
-＞
-＞
-＞
-＞
-＞
-＞       qio_channel_set_name(QIO_CHANNEL(sioc), "migration-socket-incoming")
-＞
-＞
-＞ +    qio_channel_set_feature(QIO_CHANNEL(sioc), QIO_CHANNEL_FEATURE_SHUTDOWN)
-＞
-＞
-＞       migration_channel_process_incoming(migrate_get_current(),
-＞
-＞
-＞                                          QIO_CHANNEL(sioc))
-＞
-＞
-＞       object_unref(OBJECT(sioc))
-＞
-＞
-＞
-＞
-＞ My test will not hang any more.
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞
-＞ 原始邮件
-＞
-＞
-＞
-＞ 发件人： address@hidden
-＞ 收件人：王广10165992 address@hidden
-＞ 抄送人： address@hidden address@hidden
-＞ 日 期 ：2017年03月21日 15:58
-＞ 主 题 ：Re: [Qemu-devel]  答复: Re:  [BUG]COLO failover hang
-＞
-＞
-＞
-＞
-＞
-＞ Hi,Wang.
-＞
-＞ You can test this branch:
-＞
-＞
-https://github.com/coloft/qemu/tree/colo-v5.1-developing-COLO-frame-v21-with-shared-disk
-＞
-＞ and please follow wiki ensure your own configuration correctly.
-＞
-＞
-http://wiki.qemu-project.org/Features/COLO
-＞
-＞
-＞ Thanks
-＞
-＞ Zhang Chen
-＞
-＞
-＞ On 03/21/2017 03:27 PM, address@hidden wrote:
-＞ ＞
-＞ ＞ hi.
-＞ ＞
-＞ ＞ I test the git qemu master have the same problem.
-＞ ＞
-＞ ＞ (gdb) bt
-＞ ＞
-＞ ＞ #0  qio_channel_socket_readv (ioc=0x7f65911b4e50, iov=0x7f64ef3fd880,
-＞ ＞ niov=1, fds=0x0, nfds=0x0, errp=0x0) at io/channel-socket.c:461
-＞ ＞
-＞ ＞ #1  0x00007f658e4aa0c2 in qio_channel_read
-＞ ＞ (address@hidden, address@hidden "",
-＞ ＞ address@hidden, address@hidden) at io/channel.c:114
-＞ ＞
-＞ ＞ #2  0x00007f658e3ea990 in channel_get_buffer (opaque=＜optimized out＞,
-＞ ＞ buf=0x7f65907cb838 "", pos=＜optimized out＞, size=32768) at
-＞ ＞ migration/qemu-file-channel.c:78
-＞ ＞
-＞ ＞ #3  0x00007f658e3e97fc in qemu_fill_buffer (f=0x7f65907cb800) at
-＞ ＞ migration/qemu-file.c:295
-＞ ＞
-＞ ＞ #4  0x00007f658e3ea2e1 in qemu_peek_byte (address@hidden,
-＞ ＞ address@hidden) at migration/qemu-file.c:555
-＞ ＞
-＞ ＞ #5  0x00007f658e3ea34b in qemu_get_byte (address@hidden) at
-＞ ＞ migration/qemu-file.c:568
-＞ ＞
-＞ ＞ #6  0x00007f658e3ea552 in qemu_get_be32 (address@hidden) at
-＞ ＞ migration/qemu-file.c:648
-＞ ＞
-＞ ＞ #7  0x00007f658e3e66e5 in colo_receive_message (f=0x7f65907cb800,
-＞ ＞ address@hidden) at migration/colo.c:244
-＞ ＞
-＞ ＞ #8  0x00007f658e3e681e in colo_receive_check_message (f=＜optimized
-＞ ＞ out＞, address@hidden,
-＞ ＞ address@hidden)
-＞ ＞
-＞ ＞     at migration/colo.c:264
-＞ ＞
-＞ ＞ #9  0x00007f658e3e740e in colo_process_incoming_thread
-＞ ＞ (opaque=0x7f658eb30360 ＜mis_current.31286＞) at migration/colo.c:577
-＞ ＞
-＞ ＞ #10 0x00007f658be09df3 in start_thread () from /lib64/libpthread.so.0
-＞ ＞
-＞ ＞ #11 0x00007f65881983ed in clone () from /lib64/libc.so.6
-＞ ＞
-＞ ＞ (gdb) p ioc-＞name
-＞ ＞
-＞ ＞ $2 = 0x7f658ff7d5c0 "migration-socket-incoming"
-＞ ＞
-＞ ＞ (gdb) p ioc-＞features        Do not support QIO_CHANNEL_FEATURE_SHUTDOWN
-＞ ＞
-＞ ＞ $3 = 0
-＞ ＞
-＞ ＞
-＞ ＞ (gdb) bt
-＞ ＞
-＞ ＞ #0  socket_accept_incoming_migration (ioc=0x7fdcceeafa90,
-＞ ＞ condition=G_IO_IN, opaque=0x7fdcceeafa90) at migration/socket.c:137
-＞ ＞
-＞ ＞ #1  0x00007fdcc6966350 in g_main_dispatch (context=＜optimized out＞) at
-＞ ＞ gmain.c:3054
-＞ ＞
-＞ ＞ #2  g_main_context_dispatch (context=＜optimized out＞,
-＞ ＞ address@hidden) at gmain.c:3630
-＞ ＞
-＞ ＞ #3  0x00007fdccb8a6dcc in glib_pollfds_poll () at util/main-loop.c:213
-＞ ＞
-＞ ＞ #4  os_host_main_loop_wait (timeout=＜optimized out＞) at
-＞ ＞ util/main-loop.c:258
-＞ ＞
-＞ ＞ #5  main_loop_wait (address@hidden) at
-＞ ＞ util/main-loop.c:506
-＞ ＞
-＞ ＞ #6  0x00007fdccb526187 in main_loop () at vl.c:1898
-＞ ＞
-＞ ＞ #7  main (argc=＜optimized out＞, argv=＜optimized out＞, envp=＜optimized
-＞ ＞ out＞) at vl.c:4709
-＞ ＞
-＞ ＞ (gdb) p ioc-＞features
-＞ ＞
-＞ ＞ $1 = 6
-＞ ＞
-＞ ＞ (gdb) p ioc-＞name
-＞ ＞
-＞ ＞ $2 = 0x7fdcce1b1ab0 "migration-socket-listener"
-＞ ＞
-＞ ＞
-＞ ＞ May be socket_accept_incoming_migration should
-＞ ＞ call qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN)??
-＞ ＞
-＞ ＞
-＞ ＞ thank you.
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞ 原始邮件
-＞ ＞ address@hidden
-＞ ＞ address@hidden
-＞ ＞ address@hidden@huawei.com＞
-＞ ＞ *日 期 ：*2017年03月16日 14:46
-＞ ＞ *主 题 ：**Re: [Qemu-devel] COLO failover hang*
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞ On 03/15/2017 05:06 PM, wangguang wrote:
-＞ ＞ ＞   am testing QEMU COLO feature described here [QEMU
-＞ ＞ ＞ Wiki](
-http://wiki.qemu-project.org/Features/COLO
-).
-＞ ＞ ＞
-＞ ＞ ＞ When the Primary Node panic,the Secondary Node qemu hang.
-＞ ＞ ＞ hang at recvmsg in qio_channel_socket_readv.
-＞ ＞ ＞ And  I run  { 'execute': 'nbd-server-stop' } and { "execute":
-＞ ＞ ＞ "x-colo-lost-heartbeat" } in Secondary VM's
-＞ ＞ ＞ monitor,the  Secondary Node qemu still hang at recvmsg .
-＞ ＞ ＞
-＞ ＞ ＞ I found that the colo in qemu is not complete yet.
-＞ ＞ ＞ Do the colo have any plan for development?
-＞ ＞
-＞ ＞ Yes, We are developing. You can see some of patch we pushing.
-＞ ＞
-＞ ＞ ＞ Has anyone ever run it successfully? Any help is appreciated!
-＞ ＞
-＞ ＞ In our internal version can run it successfully,
-＞ ＞ The failover detail you can ask Zhanghailiang for help.
-＞ ＞ Next time if you have some question about COLO,
-＞ ＞ please cc me and zhanghailiang address@hidden
-＞ ＞
-＞ ＞
-＞ ＞ Thanks
-＞ ＞ Zhang Chen
-＞ ＞
-＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞ centos7.2+qemu2.7.50
-＞ ＞ ＞ (gdb) bt
-＞ ＞ ＞ #0  0x00007f3e00cc86ad in recvmsg () from /lib64/libpthread.so.0
-＞ ＞ ＞ #1  0x00007f3e0332b738 in qio_channel_socket_readv (ioc=＜optimized out＞,
-＞ ＞ ＞ iov=＜optimized out＞, niov=＜optimized out＞, fds=0x0, nfds=0x0, errp=0x0) at
-＞ ＞ ＞ io/channel-socket.c:497
-＞ ＞ ＞ #2  0x00007f3e03329472 in qio_channel_read (address@hidden,
-＞ ＞ ＞ address@hidden "", address@hidden,
-＞ ＞ ＞ address@hidden) at io/channel.c:97
-＞ ＞ ＞ #3  0x00007f3e032750e0 in channel_get_buffer (opaque=＜optimized out＞,
-＞ ＞ ＞ buf=0x7f3e05910f38 "", pos=＜optimized out＞, size=32768) at
-＞ ＞ ＞ migration/qemu-file-channel.c:78
-＞ ＞ ＞ #4  0x00007f3e0327412c in qemu_fill_buffer (f=0x7f3e05910f00) at
-＞ ＞ ＞ migration/qemu-file.c:257
-＞ ＞ ＞ #5  0x00007f3e03274a41 in qemu_peek_byte (address@hidden,
-＞ ＞ ＞ address@hidden) at migration/qemu-file.c:510
-＞ ＞ ＞ #6  0x00007f3e03274aab in qemu_get_byte (address@hidden) at
-＞ ＞ ＞ migration/qemu-file.c:523
-＞ ＞ ＞ #7  0x00007f3e03274cb2 in qemu_get_be32 (address@hidden) at
-＞ ＞ ＞ migration/qemu-file.c:603
-＞ ＞ ＞ #8  0x00007f3e03271735 in colo_receive_message (f=0x7f3e05910f00,
-＞ ＞ ＞ address@hidden) at migration/colo..c:215
-＞ ＞ ＞ #9  0x00007f3e0327250d in colo_wait_handle_message (errp=0x7f3d62bfaa48,
-＞ ＞ ＞ checkpoint_request=＜synthetic pointer＞, f=＜optimized out＞) at
-＞ ＞ ＞ migration/colo.c:546
-＞ ＞ ＞ #10 colo_process_incoming_thread (opaque=0x7f3e067245e0) at
-＞ ＞ ＞ migration/colo.c:649
-＞ ＞ ＞ #11 0x00007f3e00cc1df3 in start_thread () from /lib64/libpthread.so.0
-＞ ＞ ＞ #12 0x00007f3dfc9c03ed in clone () from /lib64/libc.so.6
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞ --
-＞ ＞ ＞ View this message in context:
-http://qemu.11.n7.nabble.com/COLO-failover-hang-tp473250.html
-＞ ＞ ＞ Sent from the Developer mailing list archive at Nabble.com.
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞ ＞
-＞ ＞
-＞ ＞ --
-＞ ＞ Thanks
-＞ ＞ Zhang Chen
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞
-＞ ＞
-＞
-
-diff --git a/migration/socket.c b/migration/socket.c
-
-
-index 13966f1..d65a0ea 100644
-
-
---- a/migration/socket.c
-
-
-+++ b/migration/socket.c
-
-
-@@ -147,8 +147,9 @@ static gboolean socket_accept_incoming_migration(QIOChannel 
-*ioc,
-
-
-     }
-
-
- 
-
-
-     trace_migration_socket_incoming_accepted()
-
-
-    
-
-
-     qio_channel_set_name(QIO_CHANNEL(sioc), "migration-socket-incoming")
-
-
-+    qio_channel_set_feature(QIO_CHANNEL(sioc), QIO_CHANNEL_FEATURE_SHUTDOWN)
-
-
-     migration_channel_process_incoming(migrate_get_current(),
-
-
-                                        QIO_CHANNEL(sioc))
-
-
-     object_unref(OBJECT(sioc))
-
-
-
-
-Is this patch ok? 
-
-I have test it . The test could not hang any more.
-
-
-
-
-
-
-
-
-
-
-
-
-原始邮件
-
-
-
-发件人： address@hidden
-收件人： address@hidden address@hidden
-抄送人： address@hidden address@hidden address@hidden
-日 期 ：2017年03月22日 09:11
-主 题 ：Re: [Qemu-devel]  答复: Re:  答复: Re: [BUG]COLO failover hang
-
-
-
-
-
-On 2017/3/21 19:56, Dr. David Alan Gilbert wrote:
-＞ * Hailiang Zhang (address@hidden) wrote:
-＞＞ Hi,
-＞＞
-＞＞ Thanks for reporting this, and i confirmed it in my test, and it is a bug.
-＞＞
-＞＞ Though we tried to call qemu_file_shutdown() to shutdown the related fd, in
-＞＞ case COLO thread/incoming thread is stuck in read/write() while do failover,
-＞＞ but it didn't take effect, because all the fd used by COLO (also migration)
-＞＞ has been wrapped by qio channel, and it will not call the shutdown API if
-＞＞ we didn't qio_channel_set_feature(QIO_CHANNEL(sioc), 
-QIO_CHANNEL_FEATURE_SHUTDOWN).
-＞＞
-＞＞ Cc: Dr. David Alan Gilbert address@hidden
-＞＞
-＞＞ I doubted migration cancel has the same problem, it may be stuck in write()
-＞＞ if we tried to cancel migration.
-＞＞
-＞＞ void fd_start_outgoing_migration(MigrationState *s, const char *fdname, 
-Error **errp)
-＞＞ {
-＞＞      qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing")
-＞＞      migration_channel_connect(s, ioc, NULL)
-＞＞      ... ...
-＞＞ We didn't call qio_channel_set_feature(QIO_CHANNEL(sioc), 
-QIO_CHANNEL_FEATURE_SHUTDOWN) above,
-＞＞ and the
-＞＞ migrate_fd_cancel()
-＞＞ {
-＞＞   ... ...
-＞＞      if (s-＞state == MIGRATION_STATUS_CANCELLING && f) {
-＞＞          qemu_file_shutdown(f)  --＞ This will not take effect. No ?
-＞＞      }
-＞＞ }
-＞
-＞ (cc'd in Daniel Berrange).
-＞ I see that we call qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN) 
-at the
-＞ top of qio_channel_socket_new  so I think that's safe isn't it?
-＞
-
-Hmm, you are right, this problem is only exist for the migration incoming fd, 
-thanks.
-
-＞ Dave
-＞
-＞＞ Thanks,
-＞＞ Hailiang
-＞＞
-＞＞ On 2017/3/21 16:10, address@hidden wrote:
-＞＞＞ Thank you。
-＞＞＞
-＞＞＞ I have test aready。
-＞＞＞
-＞＞＞ When the Primary Node panic,the Secondary Node qemu hang at the same place。
-＞＞＞
-＞＞＞ Incorrding
-http://wiki.qemu-project.org/Features/COLO
-，kill Primary Node 
-qemu will not produce the problem,but Primary Node panic can。
-＞＞＞
-＞＞＞ I think due to the feature of channel does not support 
-QIO_CHANNEL_FEATURE_SHUTDOWN.
-＞＞＞
-＞＞＞
-＞＞＞ when failover,channel_shutdown could not shut down the channel.
-＞＞＞
-＞＞＞
-＞＞＞ so the colo_process_incoming_thread will hang at recvmsg.
-＞＞＞
-＞＞＞
-＞＞＞ I test a patch:
-＞＞＞
-＞＞＞
-＞＞＞ diff --git a/migration/socket.c b/migration/socket.c
-＞＞＞
-＞＞＞
-＞＞＞ index 13966f1..d65a0ea 100644
-＞＞＞
-＞＞＞
-＞＞＞ --- a/migration/socket.c
-＞＞＞
-＞＞＞
-＞＞＞ +++ b/migration/socket.c
-＞＞＞
-＞＞＞
-＞＞＞ @@ -147,8 +147,9 @@ static gboolean 
-socket_accept_incoming_migration(QIOChannel *ioc,
-＞＞＞
-＞＞＞
-＞＞＞        }
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞        trace_migration_socket_incoming_accepted()
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞        qio_channel_set_name(QIO_CHANNEL(sioc), "migration-socket-incoming")
-＞＞＞
-＞＞＞
-＞＞＞ +    qio_channel_set_feature(QIO_CHANNEL(sioc), 
-QIO_CHANNEL_FEATURE_SHUTDOWN)
-＞＞＞
-＞＞＞
-＞＞＞        migration_channel_process_incoming(migrate_get_current(),
-＞＞＞
-＞＞＞
-＞＞＞                                           QIO_CHANNEL(sioc))
-＞＞＞
-＞＞＞
-＞＞＞        object_unref(OBJECT(sioc))
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ My test will not hang any more.
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ 原始邮件
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ 发件人： address@hidden
-＞＞＞ 收件人：王广10165992 address@hidden
-＞＞＞ 抄送人： address@hidden address@hidden
-＞＞＞ 日 期 ：2017年03月21日 15:58
-＞＞＞ 主 题 ：Re: [Qemu-devel]  答复: Re:  [BUG]COLO failover hang
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ Hi,Wang.
-＞＞＞
-＞＞＞ You can test this branch:
-＞＞＞
-＞＞＞
-https://github.com/coloft/qemu/tree/colo-v5.1-developing-COLO-frame-v21-with-shared-disk
-＞＞＞
-＞＞＞ and please follow wiki ensure your own configuration correctly.
-＞＞＞
-＞＞＞
-http://wiki.qemu-project.org/Features/COLO
-＞＞＞
-＞＞＞
-＞＞＞ Thanks
-＞＞＞
-＞＞＞ Zhang Chen
-＞＞＞
-＞＞＞
-＞＞＞ On 03/21/2017 03:27 PM, address@hidden wrote:
-＞＞＞ ＞
-＞＞＞ ＞ hi.
-＞＞＞ ＞
-＞＞＞ ＞ I test the git qemu master have the same problem.
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) bt
-＞＞＞ ＞
-＞＞＞ ＞ #0  qio_channel_socket_readv (ioc=0x7f65911b4e50, iov=0x7f64ef3fd880,
-＞＞＞ ＞ niov=1, fds=0x0, nfds=0x0, errp=0x0) at io/channel-socket.c:461
-＞＞＞ ＞
-＞＞＞ ＞ #1  0x00007f658e4aa0c2 in qio_channel_read
-＞＞＞ ＞ (address@hidden, address@hidden "",
-＞＞＞ ＞ address@hidden, address@hidden) at io/channel.c:114
-＞＞＞ ＞
-＞＞＞ ＞ #2  0x00007f658e3ea990 in channel_get_buffer (opaque=＜optimized out＞,
-＞＞＞ ＞ buf=0x7f65907cb838 "", pos=＜optimized out＞, size=32768) at
-＞＞＞ ＞ migration/qemu-file-channel.c:78
-＞＞＞ ＞
-＞＞＞ ＞ #3  0x00007f658e3e97fc in qemu_fill_buffer (f=0x7f65907cb800) at
-＞＞＞ ＞ migration/qemu-file.c:295
-＞＞＞ ＞
-＞＞＞ ＞ #4  0x00007f658e3ea2e1 in qemu_peek_byte (address@hidden,
-＞＞＞ ＞ address@hidden) at migration/qemu-file.c:555
-＞＞＞ ＞
-＞＞＞ ＞ #5  0x00007f658e3ea34b in qemu_get_byte (address@hidden) at
-＞＞＞ ＞ migration/qemu-file.c:568
-＞＞＞ ＞
-＞＞＞ ＞ #6  0x00007f658e3ea552 in qemu_get_be32 (address@hidden) at
-＞＞＞ ＞ migration/qemu-file.c:648
-＞＞＞ ＞
-＞＞＞ ＞ #7  0x00007f658e3e66e5 in colo_receive_message (f=0x7f65907cb800,
-＞＞＞ ＞ address@hidden) at migration/colo.c:244
-＞＞＞ ＞
-＞＞＞ ＞ #8  0x00007f658e3e681e in colo_receive_check_message (f=＜optimized
-＞＞＞ ＞ out＞, address@hidden,
-＞＞＞ ＞ address@hidden)
-＞＞＞ ＞
-＞＞＞ ＞     at migration/colo.c:264
-＞＞＞ ＞
-＞＞＞ ＞ #9  0x00007f658e3e740e in colo_process_incoming_thread
-＞＞＞ ＞ (opaque=0x7f658eb30360 ＜mis_current.31286＞) at migration/colo.c:577
-＞＞＞ ＞
-＞＞＞ ＞ #10 0x00007f658be09df3 in start_thread () from /lib64/libpthread.so.0
-＞＞＞ ＞
-＞＞＞ ＞ #11 0x00007f65881983ed in clone () from /lib64/libc.so.6
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞name
-＞＞＞ ＞
-＞＞＞ ＞ $2 = 0x7f658ff7d5c0 "migration-socket-incoming"
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞features        Do not support QIO_CHANNEL_FEATURE_SHUTDOWN
-＞＞＞ ＞
-＞＞＞ ＞ $3 = 0
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) bt
-＞＞＞ ＞
-＞＞＞ ＞ #0  socket_accept_incoming_migration (ioc=0x7fdcceeafa90,
-＞＞＞ ＞ condition=G_IO_IN, opaque=0x7fdcceeafa90) at migration/socket.c:137
-＞＞＞ ＞
-＞＞＞ ＞ #1  0x00007fdcc6966350 in g_main_dispatch (context=＜optimized out＞) at
-＞＞＞ ＞ gmain.c:3054
-＞＞＞ ＞
-＞＞＞ ＞ #2  g_main_context_dispatch (context=＜optimized out＞,
-＞＞＞ ＞ address@hidden) at gmain.c:3630
-＞＞＞ ＞
-＞＞＞ ＞ #3  0x00007fdccb8a6dcc in glib_pollfds_poll () at util/main-loop.c:213
-＞＞＞ ＞
-＞＞＞ ＞ #4  os_host_main_loop_wait (timeout=＜optimized out＞) at
-＞＞＞ ＞ util/main-loop.c:258
-＞＞＞ ＞
-＞＞＞ ＞ #5  main_loop_wait (address@hidden) at
-＞＞＞ ＞ util/main-loop.c:506
-＞＞＞ ＞
-＞＞＞ ＞ #6  0x00007fdccb526187 in main_loop () at vl.c:1898
-＞＞＞ ＞
-＞＞＞ ＞ #7  main (argc=＜optimized out＞, argv=＜optimized out＞, envp=＜optimized
-＞＞＞ ＞ out＞) at vl.c:4709
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞features
-＞＞＞ ＞
-＞＞＞ ＞ $1 = 6
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞name
-＞＞＞ ＞
-＞＞＞ ＞ $2 = 0x7fdcce1b1ab0 "migration-socket-listener"
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ May be socket_accept_incoming_migration should
-＞＞＞ ＞ call qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN)??
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ thank you.
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ 原始邮件
-＞＞＞ ＞ address@hidden
-＞＞＞ ＞ address@hidden
-＞＞＞ ＞ address@hidden@huawei.com＞
-＞＞＞ ＞ *日 期 ：*2017年03月16日 14:46
-＞＞＞ ＞ *主 题 ：**Re: [Qemu-devel] COLO failover hang*
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ On 03/15/2017 05:06 PM, wangguang wrote:
-＞＞＞ ＞ ＞   am testing QEMU COLO feature described here [QEMU
-＞＞＞ ＞ ＞ Wiki](
-http://wiki.qemu-project.org/Features/COLO
-).
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ When the Primary Node panic,the Secondary Node qemu hang.
-＞＞＞ ＞ ＞ hang at recvmsg in qio_channel_socket_readv.
-＞＞＞ ＞ ＞ And  I run  { 'execute': 'nbd-server-stop' } and { "execute":
-＞＞＞ ＞ ＞ "x-colo-lost-heartbeat" } in Secondary VM's
-＞＞＞ ＞ ＞ monitor,the  Secondary Node qemu still hang at recvmsg .
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ I found that the colo in qemu is not complete yet.
-＞＞＞ ＞ ＞ Do the colo have any plan for development?
-＞＞＞ ＞
-＞＞＞ ＞ Yes, We are developing. You can see some of patch we pushing.
-＞＞＞ ＞
-＞＞＞ ＞ ＞ Has anyone ever run it successfully? Any help is appreciated!
-＞＞＞ ＞
-＞＞＞ ＞ In our internal version can run it successfully,
-＞＞＞ ＞ The failover detail you can ask Zhanghailiang for help.
-＞＞＞ ＞ Next time if you have some question about COLO,
-＞＞＞ ＞ please cc me and zhanghailiang address@hidden
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ Thanks
-＞＞＞ ＞ Zhang Chen
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ centos7.2+qemu2.7.50
-＞＞＞ ＞ ＞ (gdb) bt
-＞＞＞ ＞ ＞ #0  0x00007f3e00cc86ad in recvmsg () from /lib64/libpthread.so.0
-＞＞＞ ＞ ＞ #1  0x00007f3e0332b738 in qio_channel_socket_readv (ioc=＜optimized out＞,
-＞＞＞ ＞ ＞ iov=＜optimized out＞, niov=＜optimized out＞, fds=0x0, nfds=0x0, errp=0x0) 
-at
-＞＞＞ ＞ ＞ io/channel-socket.c:497
-＞＞＞ ＞ ＞ #2  0x00007f3e03329472 in qio_channel_read (address@hidden,
-＞＞＞ ＞ ＞ address@hidden "", address@hidden,
-＞＞＞ ＞ ＞ address@hidden) at io/channel.c:97
-＞＞＞ ＞ ＞ #3  0x00007f3e032750e0 in channel_get_buffer (opaque=＜optimized out＞,
-＞＞＞ ＞ ＞ buf=0x7f3e05910f38 "", pos=＜optimized out＞, size=32768) at
-＞＞＞ ＞ ＞ migration/qemu-file-channel.c:78
-＞＞＞ ＞ ＞ #4  0x00007f3e0327412c in qemu_fill_buffer (f=0x7f3e05910f00) at
-＞＞＞ ＞ ＞ migration/qemu-file.c:257
-＞＞＞ ＞ ＞ #5  0x00007f3e03274a41 in qemu_peek_byte (address@hidden,
-＞＞＞ ＞ ＞ address@hidden) at migration/qemu-file.c:510
-＞＞＞ ＞ ＞ #6  0x00007f3e03274aab in qemu_get_byte (address@hidden) at
-＞＞＞ ＞ ＞ migration/qemu-file.c:523
-＞＞＞ ＞ ＞ #7  0x00007f3e03274cb2 in qemu_get_be32 (address@hidden) at
-＞＞＞ ＞ ＞ migration/qemu-file.c:603
-＞＞＞ ＞ ＞ #8  0x00007f3e03271735 in colo_receive_message (f=0x7f3e05910f00,
-＞＞＞ ＞ ＞ address@hidden) at migration/colo.c:215
-＞＞＞ ＞ ＞ #9  0x00007f3e0327250d in colo_wait_handle_message (errp=0x7f3d62bfaa48,
-＞＞＞ ＞ ＞ checkpoint_request=＜synthetic pointer＞, f=＜optimized out＞) at
-＞＞＞ ＞ ＞ migration/colo.c:546
-＞＞＞ ＞ ＞ #10 colo_process_incoming_thread (opaque=0x7f3e067245e0) at
-＞＞＞ ＞ ＞ migration/colo.c:649
-＞＞＞ ＞ ＞ #11 0x00007f3e00cc1df3 in start_thread () from /lib64/libpthread.so.0
-＞＞＞ ＞ ＞ #12 0x00007f3dfc9c03ed in clone () from /lib64/libc..so.6
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ --
-＞＞＞ ＞ ＞ View this message in context:
-http://qemu.11.n7.nabble.com/COLO-failover-hang-tp473250.html
-＞＞＞ ＞ ＞ Sent from the Developer mailing list archive at Nabble.com.
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ --
-＞＞＞ ＞ Thanks
-＞＞＞ ＞ Zhang Chen
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞
-＞＞
-＞ --
-＞ Dr. David Alan Gilbert / address@hidden / Manchester, UK
-＞
-＞ .
-＞
-
-Hi,
-
-On 2017/3/22 9:42, address@hidden wrote:
-diff --git a/migration/socket.c b/migration/socket.c
-
-
-index 13966f1..d65a0ea 100644
-
-
---- a/migration/socket.c
-
-
-+++ b/migration/socket.c
-
-
-@@ -147,8 +147,9 @@ static gboolean socket_accept_incoming_migration(QIOChannel 
-*ioc,
-
-
-      }
-
-
-
-
-
-      trace_migration_socket_incoming_accepted()
-
-
-
-
-
-      qio_channel_set_name(QIO_CHANNEL(sioc), "migration-socket-incoming")
-
-
-+    qio_channel_set_feature(QIO_CHANNEL(sioc), QIO_CHANNEL_FEATURE_SHUTDOWN)
-
-
-      migration_channel_process_incoming(migrate_get_current(),
-
-
-                                         QIO_CHANNEL(sioc))
-
-
-      object_unref(OBJECT(sioc))
-
-
-
-
-Is this patch ok?
-Yes, i think this works, but a better way maybe to call 
-qio_channel_set_feature()
-in qio_channel_socket_accept(), we didn't set the SHUTDOWN feature for the 
-socket accept fd,
-Or fix it by this:
-
-diff --git a/io/channel-socket.c b/io/channel-socket.c
-index f546c68..ce6894c 100644
---- a/io/channel-socket.c
-+++ b/io/channel-socket.c
-@@ -330,9 +330,8 @@ qio_channel_socket_accept(QIOChannelSocket *ioc,
-                           Error **errp)
- {
-     QIOChannelSocket *cioc;
--
--    cioc = QIO_CHANNEL_SOCKET(object_new(TYPE_QIO_CHANNEL_SOCKET));
--    cioc->fd = -1;
-+
-+    cioc = qio_channel_socket_new();
-     cioc->remoteAddrLen = sizeof(ioc->remoteAddr);
-     cioc->localAddrLen = sizeof(ioc->localAddr);
-
-
-Thanks,
-Hailiang
-I have test it . The test could not hang any more.
-
-
-
-
-
-
-
-
-
-
-
-
-原始邮件
-
-
-
-发件人： address@hidden
-收件人： address@hidden address@hidden
-抄送人： address@hidden address@hidden address@hidden
-日 期 ：2017年03月22日 09:11
-主 题 ：Re: [Qemu-devel]  答复: Re:  答复: Re: [BUG]COLO failover hang
-
-
-
-
-
-On 2017/3/21 19:56, Dr. David Alan Gilbert wrote:
-＞ * Hailiang Zhang (address@hidden) wrote:
-＞＞ Hi,
-＞＞
-＞＞ Thanks for reporting this, and i confirmed it in my test, and it is a bug.
-＞＞
-＞＞ Though we tried to call qemu_file_shutdown() to shutdown the related fd, in
-＞＞ case COLO thread/incoming thread is stuck in read/write() while do failover,
-＞＞ but it didn't take effect, because all the fd used by COLO (also migration)
-＞＞ has been wrapped by qio channel, and it will not call the shutdown API if
-＞＞ we didn't qio_channel_set_feature(QIO_CHANNEL(sioc), 
-QIO_CHANNEL_FEATURE_SHUTDOWN).
-＞＞
-＞＞ Cc: Dr. David Alan Gilbert address@hidden
-＞＞
-＞＞ I doubted migration cancel has the same problem, it may be stuck in write()
-＞＞ if we tried to cancel migration.
-＞＞
-＞＞ void fd_start_outgoing_migration(MigrationState *s, const char *fdname, 
-Error **errp)
-＞＞ {
-＞＞      qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing")
-＞＞      migration_channel_connect(s, ioc, NULL)
-＞＞      ... ...
-＞＞ We didn't call qio_channel_set_feature(QIO_CHANNEL(sioc), 
-QIO_CHANNEL_FEATURE_SHUTDOWN) above,
-＞＞ and the
-＞＞ migrate_fd_cancel()
-＞＞ {
-＞＞   ... ...
-＞＞      if (s-＞state == MIGRATION_STATUS_CANCELLING && f) {
-＞＞          qemu_file_shutdown(f)  --＞ This will not take effect. No ?
-＞＞      }
-＞＞ }
-＞
-＞ (cc'd in Daniel Berrange).
-＞ I see that we call qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN) 
-at the
-＞ top of qio_channel_socket_new  so I think that's safe isn't it?
-＞
-
-Hmm, you are right, this problem is only exist for the migration incoming fd, 
-thanks.
-
-＞ Dave
-＞
-＞＞ Thanks,
-＞＞ Hailiang
-＞＞
-＞＞ On 2017/3/21 16:10, address@hidden wrote:
-＞＞＞ Thank you。
-＞＞＞
-＞＞＞ I have test aready。
-＞＞＞
-＞＞＞ When the Primary Node panic,the Secondary Node qemu hang at the same place。
-＞＞＞
-＞＞＞ Incorrding
-http://wiki.qemu-project.org/Features/COLO
-，kill Primary Node 
-qemu will not produce the problem,but Primary Node panic can。
-＞＞＞
-＞＞＞ I think due to the feature of channel does not support 
-QIO_CHANNEL_FEATURE_SHUTDOWN.
-＞＞＞
-＞＞＞
-＞＞＞ when failover,channel_shutdown could not shut down the channel.
-＞＞＞
-＞＞＞
-＞＞＞ so the colo_process_incoming_thread will hang at recvmsg.
-＞＞＞
-＞＞＞
-＞＞＞ I test a patch:
-＞＞＞
-＞＞＞
-＞＞＞ diff --git a/migration/socket.c b/migration/socket.c
-＞＞＞
-＞＞＞
-＞＞＞ index 13966f1..d65a0ea 100644
-＞＞＞
-＞＞＞
-＞＞＞ --- a/migration/socket.c
-＞＞＞
-＞＞＞
-＞＞＞ +++ b/migration/socket.c
-＞＞＞
-＞＞＞
-＞＞＞ @@ -147,8 +147,9 @@ static gboolean 
-socket_accept_incoming_migration(QIOChannel *ioc,
-＞＞＞
-＞＞＞
-＞＞＞        }
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞        trace_migration_socket_incoming_accepted()
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞        qio_channel_set_name(QIO_CHANNEL(sioc), "migration-socket-incoming")
-＞＞＞
-＞＞＞
-＞＞＞ +    qio_channel_set_feature(QIO_CHANNEL(sioc), 
-QIO_CHANNEL_FEATURE_SHUTDOWN)
-＞＞＞
-＞＞＞
-＞＞＞        migration_channel_process_incoming(migrate_get_current(),
-＞＞＞
-＞＞＞
-＞＞＞                                           QIO_CHANNEL(sioc))
-＞＞＞
-＞＞＞
-＞＞＞        object_unref(OBJECT(sioc))
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ My test will not hang any more.
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ 原始邮件
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ 发件人： address@hidden
-＞＞＞ 收件人：王广10165992 address@hidden
-＞＞＞ 抄送人： address@hidden address@hidden
-＞＞＞ 日 期 ：2017年03月21日 15:58
-＞＞＞ 主 题 ：Re: [Qemu-devel]  答复: Re:  [BUG]COLO failover hang
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞
-＞＞＞ Hi,Wang.
-＞＞＞
-＞＞＞ You can test this branch:
-＞＞＞
-＞＞＞
-https://github.com/coloft/qemu/tree/colo-v5.1-developing-COLO-frame-v21-with-shared-disk
-＞＞＞
-＞＞＞ and please follow wiki ensure your own configuration correctly.
-＞＞＞
-＞＞＞
-http://wiki.qemu-project.org/Features/COLO
-＞＞＞
-＞＞＞
-＞＞＞ Thanks
-＞＞＞
-＞＞＞ Zhang Chen
-＞＞＞
-＞＞＞
-＞＞＞ On 03/21/2017 03:27 PM, address@hidden wrote:
-＞＞＞ ＞
-＞＞＞ ＞ hi.
-＞＞＞ ＞
-＞＞＞ ＞ I test the git qemu master have the same problem.
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) bt
-＞＞＞ ＞
-＞＞＞ ＞ #0  qio_channel_socket_readv (ioc=0x7f65911b4e50, iov=0x7f64ef3fd880,
-＞＞＞ ＞ niov=1, fds=0x0, nfds=0x0, errp=0x0) at io/channel-socket.c:461
-＞＞＞ ＞
-＞＞＞ ＞ #1  0x00007f658e4aa0c2 in qio_channel_read
-＞＞＞ ＞ (address@hidden, address@hidden "",
-＞＞＞ ＞ address@hidden, address@hidden) at io/channel.c:114
-＞＞＞ ＞
-＞＞＞ ＞ #2  0x00007f658e3ea990 in channel_get_buffer (opaque=＜optimized out＞,
-＞＞＞ ＞ buf=0x7f65907cb838 "", pos=＜optimized out＞, size=32768) at
-＞＞＞ ＞ migration/qemu-file-channel.c:78
-＞＞＞ ＞
-＞＞＞ ＞ #3  0x00007f658e3e97fc in qemu_fill_buffer (f=0x7f65907cb800) at
-＞＞＞ ＞ migration/qemu-file.c:295
-＞＞＞ ＞
-＞＞＞ ＞ #4  0x00007f658e3ea2e1 in qemu_peek_byte (address@hidden,
-＞＞＞ ＞ address@hidden) at migration/qemu-file.c:555
-＞＞＞ ＞
-＞＞＞ ＞ #5  0x00007f658e3ea34b in qemu_get_byte (address@hidden) at
-＞＞＞ ＞ migration/qemu-file.c:568
-＞＞＞ ＞
-＞＞＞ ＞ #6  0x00007f658e3ea552 in qemu_get_be32 (address@hidden) at
-＞＞＞ ＞ migration/qemu-file.c:648
-＞＞＞ ＞
-＞＞＞ ＞ #7  0x00007f658e3e66e5 in colo_receive_message (f=0x7f65907cb800,
-＞＞＞ ＞ address@hidden) at migration/colo.c:244
-＞＞＞ ＞
-＞＞＞ ＞ #8  0x00007f658e3e681e in colo_receive_check_message (f=＜optimized
-＞＞＞ ＞ out＞, address@hidden,
-＞＞＞ ＞ address@hidden)
-＞＞＞ ＞
-＞＞＞ ＞     at migration/colo.c:264
-＞＞＞ ＞
-＞＞＞ ＞ #9  0x00007f658e3e740e in colo_process_incoming_thread
-＞＞＞ ＞ (opaque=0x7f658eb30360 ＜mis_current.31286＞) at migration/colo.c:577
-＞＞＞ ＞
-＞＞＞ ＞ #10 0x00007f658be09df3 in start_thread () from /lib64/libpthread.so.0
-＞＞＞ ＞
-＞＞＞ ＞ #11 0x00007f65881983ed in clone () from /lib64/libc.so.6
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞name
-＞＞＞ ＞
-＞＞＞ ＞ $2 = 0x7f658ff7d5c0 "migration-socket-incoming"
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞features        Do not support QIO_CHANNEL_FEATURE_SHUTDOWN
-＞＞＞ ＞
-＞＞＞ ＞ $3 = 0
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) bt
-＞＞＞ ＞
-＞＞＞ ＞ #0  socket_accept_incoming_migration (ioc=0x7fdcceeafa90,
-＞＞＞ ＞ condition=G_IO_IN, opaque=0x7fdcceeafa90) at migration/socket.c:137
-＞＞＞ ＞
-＞＞＞ ＞ #1  0x00007fdcc6966350 in g_main_dispatch (context=＜optimized out＞) at
-＞＞＞ ＞ gmain.c:3054
-＞＞＞ ＞
-＞＞＞ ＞ #2  g_main_context_dispatch (context=＜optimized out＞,
-＞＞＞ ＞ address@hidden) at gmain.c:3630
-＞＞＞ ＞
-＞＞＞ ＞ #3  0x00007fdccb8a6dcc in glib_pollfds_poll () at util/main-loop.c:213
-＞＞＞ ＞
-＞＞＞ ＞ #4  os_host_main_loop_wait (timeout=＜optimized out＞) at
-＞＞＞ ＞ util/main-loop.c:258
-＞＞＞ ＞
-＞＞＞ ＞ #5  main_loop_wait (address@hidden) at
-＞＞＞ ＞ util/main-loop.c:506
-＞＞＞ ＞
-＞＞＞ ＞ #6  0x00007fdccb526187 in main_loop () at vl.c:1898
-＞＞＞ ＞
-＞＞＞ ＞ #7  main (argc=＜optimized out＞, argv=＜optimized out＞, envp=＜optimized
-＞＞＞ ＞ out＞) at vl.c:4709
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞features
-＞＞＞ ＞
-＞＞＞ ＞ $1 = 6
-＞＞＞ ＞
-＞＞＞ ＞ (gdb) p ioc-＞name
-＞＞＞ ＞
-＞＞＞ ＞ $2 = 0x7fdcce1b1ab0 "migration-socket-listener"
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ May be socket_accept_incoming_migration should
-＞＞＞ ＞ call qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN)??
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ thank you.
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ 原始邮件
-＞＞＞ ＞ address@hidden
-＞＞＞ ＞ address@hidden
-＞＞＞ ＞ address@hidden@huawei.com＞
-＞＞＞ ＞ *日 期 ：*2017年03月16日 14:46
-＞＞＞ ＞ *主 题 ：**Re: [Qemu-devel] COLO failover hang*
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ On 03/15/2017 05:06 PM, wangguang wrote:
-＞＞＞ ＞ ＞   am testing QEMU COLO feature described here [QEMU
-＞＞＞ ＞ ＞ Wiki](
-http://wiki.qemu-project.org/Features/COLO
-).
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ When the Primary Node panic,the Secondary Node qemu hang.
-＞＞＞ ＞ ＞ hang at recvmsg in qio_channel_socket_readv.
-＞＞＞ ＞ ＞ And  I run  { 'execute': 'nbd-server-stop' } and { "execute":
-＞＞＞ ＞ ＞ "x-colo-lost-heartbeat" } in Secondary VM's
-＞＞＞ ＞ ＞ monitor,the  Secondary Node qemu still hang at recvmsg .
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ I found that the colo in qemu is not complete yet.
-＞＞＞ ＞ ＞ Do the colo have any plan for development?
-＞＞＞ ＞
-＞＞＞ ＞ Yes, We are developing. You can see some of patch we pushing.
-＞＞＞ ＞
-＞＞＞ ＞ ＞ Has anyone ever run it successfully? Any help is appreciated!
-＞＞＞ ＞
-＞＞＞ ＞ In our internal version can run it successfully,
-＞＞＞ ＞ The failover detail you can ask Zhanghailiang for help.
-＞＞＞ ＞ Next time if you have some question about COLO,
-＞＞＞ ＞ please cc me and zhanghailiang address@hidden
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ Thanks
-＞＞＞ ＞ Zhang Chen
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ centos7.2+qemu2.7.50
-＞＞＞ ＞ ＞ (gdb) bt
-＞＞＞ ＞ ＞ #0  0x00007f3e00cc86ad in recvmsg () from /lib64/libpthread.so.0
-＞＞＞ ＞ ＞ #1  0x00007f3e0332b738 in qio_channel_socket_readv (ioc=＜optimized out＞,
-＞＞＞ ＞ ＞ iov=＜optimized out＞, niov=＜optimized out＞, fds=0x0, nfds=0x0, errp=0x0) 
-at
-＞＞＞ ＞ ＞ io/channel-socket.c:497
-＞＞＞ ＞ ＞ #2  0x00007f3e03329472 in qio_channel_read (address@hidden,
-＞＞＞ ＞ ＞ address@hidden "", address@hidden,
-＞＞＞ ＞ ＞ address@hidden) at io/channel.c:97
-＞＞＞ ＞ ＞ #3  0x00007f3e032750e0 in channel_get_buffer (opaque=＜optimized out＞,
-＞＞＞ ＞ ＞ buf=0x7f3e05910f38 "", pos=＜optimized out＞, size=32768) at
-＞＞＞ ＞ ＞ migration/qemu-file-channel.c:78
-＞＞＞ ＞ ＞ #4  0x00007f3e0327412c in qemu_fill_buffer (f=0x7f3e05910f00) at
-＞＞＞ ＞ ＞ migration/qemu-file.c:257
-＞＞＞ ＞ ＞ #5  0x00007f3e03274a41 in qemu_peek_byte (address@hidden,
-＞＞＞ ＞ ＞ address@hidden) at migration/qemu-file.c:510
-＞＞＞ ＞ ＞ #6  0x00007f3e03274aab in qemu_get_byte (address@hidden) at
-＞＞＞ ＞ ＞ migration/qemu-file.c:523
-＞＞＞ ＞ ＞ #7  0x00007f3e03274cb2 in qemu_get_be32 (address@hidden) at
-＞＞＞ ＞ ＞ migration/qemu-file.c:603
-＞＞＞ ＞ ＞ #8  0x00007f3e03271735 in colo_receive_message (f=0x7f3e05910f00,
-＞＞＞ ＞ ＞ address@hidden) at migration/colo.c:215
-＞＞＞ ＞ ＞ #9  0x00007f3e0327250d in colo_wait_handle_message (errp=0x7f3d62bfaa48,
-＞＞＞ ＞ ＞ checkpoint_request=＜synthetic pointer＞, f=＜optimized out＞) at
-＞＞＞ ＞ ＞ migration/colo.c:546
-＞＞＞ ＞ ＞ #10 colo_process_incoming_thread (opaque=0x7f3e067245e0) at
-＞＞＞ ＞ ＞ migration/colo.c:649
-＞＞＞ ＞ ＞ #11 0x00007f3e00cc1df3 in start_thread () from /lib64/libpthread.so.0
-＞＞＞ ＞ ＞ #12 0x00007f3dfc9c03ed in clone () from /lib64/libc..so.6
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞ --
-＞＞＞ ＞ ＞ View this message in context:
-http://qemu.11.n7.nabble.com/COLO-failover-hang-tp473250.html
-＞＞＞ ＞ ＞ Sent from the Developer mailing list archive at Nabble.com.
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞ --
-＞＞＞ ＞ Thanks
-＞＞＞ ＞ Zhang Chen
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞ ＞
-＞＞＞
-＞＞
-＞ --
-＞ Dr. David Alan Gilbert / address@hidden / Manchester, UK
-＞
-＞ .
-＞
-
diff --git a/results/classifier/014/peripherals/60339453 b/results/classifier/014/peripherals/60339453
deleted file mode 100644
index a0503d6c..00000000
--- a/results/classifier/014/peripherals/60339453
+++ /dev/null
@@ -1,88 +0,0 @@
-peripherals: 0.824
-kernel: 0.805
-register: 0.787
-boot: 0.782
-arm: 0.780
-performance: 0.764
-permissions: 0.750
-TCG: 0.748
-alpha: 0.718
-VMM: 0.712
-risc-v: 0.707
-device: 0.706
-mistranslation: 0.699
-hypervisor: 0.697
-PID: 0.685
-network: 0.682
-vnc: 0.680
-debug: 0.672
-graphic: 0.671
-operating system: 0.670
-KVM: 0.669
-user-level: 0.663
-semantic: 0.662
-architecture: 0.649
-x86: 0.647
-virtual: 0.630
-files: 0.623
-ppc: 0.615
-socket: 0.607
-i386: 0.533
-assembly: 0.486
-
-[BUG] scsi: vmw_pvscsi: Boot hangs during scsi under qemu, post commit e662502b3a78
-
-Hi,
-
-Commit e662502b3a78 ("scsi: vmw_pvscsi: Set correct residual data length"),
-and its backports to stable trees, makes kernel hang during boot, when
-ran as a VM under qemu with following parameters:
-
-  -drive file=$DISKFILE,if=none,id=sda
-  -device pvscsi
-  -device scsi-hd,bus=scsi.0,drive=sda
-
-Diving deeper, commit e662502b3a78
-
-  @@ -585,7 +585,13 @@ static void pvscsi_complete_request(struct 
-pvscsi_adapter *adapter,
-                case BTSTAT_SUCCESS:
-  +                     /*
-  +                      * Commands like INQUIRY may transfer less data than
-  +                      * requested by the initiator via bufflen. Set residual
-  +                      * count to make upper layer aware of the actual amount
-  +                      * of data returned.
-  +                      */
-  +                     scsi_set_resid(cmd, scsi_bufflen(cmd) - e->dataLen);
-
-assumes 'e->dataLen' is properly armed with actual num of bytes
-transferred; alas qemu's hw/scsi/vmw_pvscsi.c never arms the 'dataLen'
-field of the completion descriptor (kept zero).
-
-As a result, the residual count is set as the *entire* 'scsi_bufflen' of a
-good transfer, which makes upper scsi layers repeatedly ignore this
-valid transfer.
-
-Not properly arming 'dataLen' seems as an oversight in qemu, which needs
-to be fixed.
-
-However, since kernels with commit e662502b3a78 (and backports) now fail
-to boot under qemu's "-device pvscsi", a suggested workaround is to set
-the residual count *only* if 'e->dataLen' is armed, e.g:
-
-  @@ -588,7 +588,8 @@ static void pvscsi_complete_request(struct pvscsi_adapter 
-*adapter,
-                           * count to make upper layer aware of the actual 
-amount
-                           * of data returned.
-                           */
-  -                       scsi_set_resid(cmd, scsi_bufflen(cmd) - e->dataLen);
-  +                       if (e->dataLen)
-  +                               scsi_set_resid(cmd, scsi_bufflen(cmd) - 
-e->dataLen);
-
-in order to make kernels boot on old qemu binaries.
-
-Best,
-Shmulik
-