Re: [PULL 00/27] migration queue

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Re: [PULL 00/27] migration queue

From:	Peter Maydell
Subject:	Re: [PULL 00/27] migration queue
Date:	Thu, 4 Feb 2021 19:48:13 +0000

On Thu, 4 Feb 2021 at 17:16, Dr. David Alan Gilbert (git)
<dgilbert@redhat.com> wrote:
>
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> The following changes since commit 1ba089f2255bfdb071be3ce6ac6c3069e8012179:
>
>   Merge remote-tracking branch 'remotes/armbru/tags/pull-qmp-2021-02-04' into 
> staging (2021-02-04 14:15:35 +0000)
>
> are available in the Git repository at:
>
>   git://github.com/dagrh/qemu.git tags/pull-migration-20210204a
>
> for you to fetch changes up to ef74d46576a9e5aff96f285b74150f341a525688:
>
>   migration: introduce snapshot-{save, load, delete} QMP commands (2021-02-04 
> 16:29:03 +0000)
>
> ----------------------------------------------------------------
> Migration pull 2020-02-04
>
>  New snapshot features:
>    a) Andrey's RAM snapshot feature using userfault-wp
>    b) Dan's native-QMP snapshots
>
> Cleanups:
>    c) Jinhao's memory leeak fixes
>    d) Wainer's maybe unitialized fix
>    e) Markus's parameter fixes
>
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Fails iotest 267 on ppc64 host:
  TEST   iotest-qcow2: 267 [fail]
QEMU          --
"/home/pm215/qemu/build/all/tests/qemu-iotests/../../qemu-system-ppc64"
-nodefaults -display none -accel q
test
QEMU_IMG      -- "/home/pm215/qemu/build/all/tests/qemu-iotests/../../qemu-img"
QEMU_IO       --
"/home/pm215/qemu/build/all/tests/qemu-iotests/../../qemu-io" --cache
writeback --aio threads -f qcow2
QEMU_NBD      -- "/home/pm215/qemu/build/all/tests/qemu-iotests/../../qemu-nbd"
IMGFMT        -- qcow2
IMGPROTO      -- file
PLATFORM      -- Linux/ppc64 gcc1-power7.osuosl.org 3.10.0-862.14.4.el7.ppc64
TEST_DIR      -- /home/pm215/qemu/build/all/tests/qemu-iotests/scratch
SOCK_DIR      -- /tmp/tmpea7m6_b4
SOCKET_SCM_HELPER --
/home/pm215/qemu/build/all/tests/qemu-iotests/socket_scm_helper
--- /home/pm215/qemu/tests/qemu-iotests/267.out
+++ 267.out.bad
@@ -36,7 +36,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 24600 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )

 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
 Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none -device
virtio-blk,drive=none0
@@ -47,7 +49,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 24653 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )


 === -drive if=virtio ===
@@ -72,7 +76,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 24760 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )


 === Simple -blockdev ===
@@ -97,7 +103,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 24866 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )

 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
 Testing: -blockdev
driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev
driver=raw,file=file,node-name=raw -blockdev
driver=IMGFMT,file=raw,node-name=fmt
@@ -108,7 +116,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 24919 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )


 === -blockdev with a filter on top ===
@@ -122,7 +132,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 24972 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )


 === -blockdev with a backing file ===
@@ -137,7 +149,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 25056 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )

 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
 Testing: -blockdev
driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file
-blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt
-blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file
-blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt
@@ -148,7 +162,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 25109 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )

 Internal snapshots on overlay:
 Snapshot list:
@@ -169,7 +185,9 @@
 ID        TAG               VM SIZE                DATE     VM CLOCK     ICOUNT
 --        snap0                SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
 (qemu) loadvm snap0
-(qemu) quit
+./common.rc: line 163: 25179 Segmentation fault      ( if [ -n
"${QEMU_NEED_PID}" ]; then
+    echo $BASHPID > "${QEMU_TEST_DIR}/qemu-${_QEMU_HANDLE}.pid";
+fi; VALGRIND_QEMU="${VALGRIND_QEMU_VM}" _qemu_proc_exec
"${VALGRIND_LOGFILE}" "$QEMU_PROG" $QEMU_OPTIONS "$@" )

 Internal snapshots on overlay:
 Snapshot list:
  TEST   iotest-qcow2: 268


thanks
-- PMM

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[PULL 18/27] migration: stop returning errno from load_snapshot(), (continued)
- [PULL 18/27] migration: stop returning errno from load_snapshot(), Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 19/27] block: add ability to specify list of blockdevs during snapshot, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 20/27] block: allow specifying name of block device for vmstate storage, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 22/27] migration: control whether snapshots are ovewritten, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 23/27] migration: wire up support for snapshot device selection, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 21/27] block: rename and alter bdrv_all_find_snapshot semantics, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 25/27] iotests: add support for capturing and matching QMP events, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 26/27] iotests: fix loading of common.config from tests/ subdir, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 24/27] migration: introduce a delete_snapshot wrapper, Dr. David Alan Gilbert (git), 2021/02/04
- [PULL 27/27] migration: introduce snapshot-{save, load, delete} QMP commands, Dr. David Alan Gilbert (git), 2021/02/04
- Re: [PULL 00/27] migration queue, Peter Maydell <=
  - Re: [PULL 00/27] migration queue, Dr. David Alan Gilbert, 2021/02/04
  - Re: [PULL 00/27] migration queue, Dr. David Alan Gilbert, 2021/02/08
- [PULL 00/27] migration queue, Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 01/27] spapr_pci: Fix memory leak of vmstate_spapr_pci, Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 04/27] migration: introduce 'background-snapshot' migration capability, Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 02/27] savevm: Fix memory leak of vmstate_configuration, Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 06/27] migration: support UFFD write fault processing in ram_save_iterate(), Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 03/27] migration/qemu-file: Fix maybe uninitialized on qemu_get_buffer_in_place(), Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 05/27] migration: introduce UFFD-WP low-level interface helpers, Dr. David Alan Gilbert (git), 2021/02/08
  - [PULL 10/27] migration: Clean up signed vs. unsigned XBZRLE cache-size, Dr. David Alan Gilbert (git), 2021/02/08

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