Full quote (and cc to Guido Günther) since message before seems to be
delayed (or will be returned).
Investigation of 'info migration' in kvm 72 showed following result:
---8---
qemuMonitorTextGetMigrationStatus(): reply = 'Migration active
Transfer rate 0.0 kb/s
Iteration 0
Transferred 14/136192 pages
Maximum migration speed is 32.0 mb/s
'
---8---
Seems a huge effort to switch back to 'info migration' when 'info
migrate' failes ...
I suggest a new patch to detect the error in qemu-monitor when parsing
reply to 'info migrate', patch attached.
regards
Andreas Bießmann
Andreas Bießmann wrote:
This is result of further investigation of 'info migrate' issue. kvm 72 seems
to have 'info migration' rather than 'info migrate'. Maybe we could use this
command in favor of 'info migrate', but we need to know the version of command
interface. Still have to investigate the command 'info migration' in kvm 72!
Patch and further comments attached!
regards
Andreas Bießmann
---
Result of this patch with kvm 72 is:
---8---
qemuMonitorTextGetMigrationStatus(): reply = 'info version -- show the
version of qemu
info network -- show the network state
info block -- show the block devices
info blockstats -- show block device statistics
info registers -- show the cpu registers
info cpus -- show infos for each CPU
info history -- show the command line history
info irq -- show the interrupts statistics (if available)
info pic -- show i8259 (PIC) state
info pci -- show PCI info
info tlb -- show virtual to physical memory mappings
info mem -- show the active virtual memory mappings
info jit -- show dynamic compiler info
info kqemu -- show kqemu information
info kvm -- show kvm information
info usb -- show guest USB devices
info usbhost -- show host USB devices
info profile -- show profiling information
info capture -- show capture information
info snapshots -- show the currently saved VM snapshots
info pcmcia -- show guest PCMCIA status
info mice -- show which guest mouse is receiving events
info vnc -- show the vnc server status
info name -- show the current VM name
info slirp -- show SLIRP statistics
info migration -- show migration information
'
---8---
Result of this patch with qemu-kvm 0.11.1 installed is:
---8---
qemuMonitorTextGetMigrationStatus(): reply = 'Migration status: active
transferred ram: 108 kbytes
remaining ram: 540820 kbytes
total ram: 540928 kbytes
'
---8---
This message is continiously repeated. transferred ram, remaining ram and
total ram is always the same value!
Signed-off-by: Andreas Bießmann biessm...@corscience.de
---
src/qemu/qemu_monitor_text.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index 7f0e7f6..137fd7d 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -1024,6 +1024,8 @@ int qemuMonitorTextGetMigrationStatus(qemuMonitorPtr
mon,
return -1;
}
+printf(\n%s(): reply = '%s'\n, __func__, reply);
+
if ((tmp = strstr(reply, MIGRATION_PREFIX)) != NULL) {
tmp += strlen(MIGRATION_PREFIX);
end = strchr(tmp, '\r');
--
Andreas Bießmann, Dipl.-Ing. (FH)
RD Services
Corscience GmbH Co. KG
Henkestr. 91
D-91052 Erlangen
Germany
Tel: +49 9131 977986-443
Fax: +49 9131 977986-59
e-mail: biessm...@corscience.de
Internet: www.corscience.de
-
Corscience GmbH Co.KG
Sitz der Gesellschaft/Place of business: Erlangen
Amtsgericht/Local court: Fürth
Handelsregisternummer/Commercial Register No.: HRA 7510
Geschäftsführer/Managing director: Prof. Dr. Armin Bolz,
Dr. Karl-Andreas Feldhahn, Dipl.-Volksw. Marc Griefahn
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From cbb911ea32272b377e8ade9736e781c2fd7d8473 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20Bie=C3=9Fmann?= biessm...@corscience.de
Date: Thu, 18 Mar 2010 13:05:59 +0100
Subject: [PATCH] patch qemuMonitorTextGetMigrationStatus to intercept unknown command 'info migrate'
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Debian package kvm up to version 72 has not implemented the command 'info migrate'.
This command interface returns help page of info commands and looks like this:
---8---
info version -- show the version of qemu
info network -- show the network state
info block -- show the block devices
info blockstats -- show block device statistics
info registers -- show the cpu registers
info cpus -- show infos for each CPU
info history -- show the command line history
info irq -- show the interrupts statistics (if available)
info pic -- show i8259
