search for: pmemsave

Displaying 10 results from an estimated 10 matches for "pmemsave".

2012 Mar 20
2
qemu-monitor-command
Hello Everyone, I am working on a grad school project for virtual introspection. I have a vm running (with 512mb of memory) and want to access the pmemsave function through virsh with the qemu-monitor-command. I am typing the following: virsh qemu-monitor-command --hmp Shawn 'pmemsave 0 536870912 image.dump' Shawn is the name of my vm and image.dump is the name of my output file. No matter what I do, I keep getting: Could not open ...
2012 Aug 31
1
virDomainMemoryPeek: bad behavior under workload
...xecution (in paused state). What do I need is the complete linear memory image, byte per byte, nothing special; I will give this output to tools and parsers like Volatility to get the value from it. I looked around and the only way to get the memory in such a way is using the QEMU monitor command `pmemsave`. I am using libvirt through its Python bindings and the virDomainQemuMonitorCommand seems not to be exposed by the API so, as suggested in some mails I read into the mailig list, I switched to virDomainMemoryPeek. Using this function keeps up to 14-16 seconds to read 512Mb of memory with the 64Kb...
2015 May 29
2
Re: virDomainCoreDumpWithFormat files created as root
...t; is running under. If (by default) your qemu processes run under > root:root so will the coredump. > I changed default settings but it didn't work. I can see the qemu processes now belonging to my user but yet the core dump is root:root. I used to generate such file with plain QMP 'pmemsave' command and it was creating it under libvirt-qemu group which was a bit better. This new command is way more handy but if I can't sort this issue out I'll need to fallback to the previous one. I set in /etc/libvirt/qemu.conf the keys user = "myuser" group = "mygroup&qu...
2017 Apr 28
2
Re: Libvirtd freezes
On 04/27/2017 04:31 PM, Stefano Ricci wrote: > Here is the backtrace of the libvirt process just started [Just a side note, you shouldn't top post on technical lists. Gmail sucks at this.] > > https://pastebin.com/R66myzFp Looks like libvirtd is trying to spawn /usr/bin/qemu-system-x86_64 but it takes ages to init. In the debug logs you might see the actual command line that
2017 Apr 29
2
Re: Libvirtd freezes
...> "query-acpi-ospm-status"}, {"name": "qom-set"}, {"name": > "qom-list-types"}, {"name": "qom-list"}, {"name": "qom-get"}, {"name": > "qmp_capabilities"}, {"name": "pmemsave"}, {"name": "object-del"}, > {"name": "object-add"}, {"name": "netdev_del"} ....... > So it would not look like a qemu bug. Well, this does not prove that qemu replies to all commands issued by libvirt. For that we would need d...
2015 May 29
0
Re: virDomainCoreDumpWithFormat files created as root
...ning under. If (by default) your qemu processes run under >> root:root so will the coredump. > > I changed default settings but it didn't work. I can see the qemu processes now belonging to my user but yet the core dump is root:root. I used to generate such file with plain QMP 'pmemsave' command and it was creating it under libvirt-qemu group which was a bit better. This new command is way more handy but if I can't sort this issue out I'll need to fallback to the previous one. > > I set in /etc/libvirt/qemu.conf the keys > > user = "myuser" >...
2017 Apr 29
0
Re: Libvirtd freezes
...uot;name": "query-acpi-ospm-status"}, {"name": "qom-set"}, {"name": "qom-list-types"}, {"name": "qom-list"}, {"name": "qom-get"}, {"name": "qmp_capabilities"}, {"name": "pmemsave"}, {"name": "object-del"}, {"name": "object-add"}, {"name": "netdev_del"} ....... So it would not look like a qemu bug. Stefano
2015 May 28
3
virDomainCoreDumpWithFormat files created as root
Greetings, I am dumping a guest VM memory for inspection using the command "virDomainCoreDumpWithFormat" and the created files appear to belong to root (both user and group). I have searched around but didn't find any answer. Is there a way to instruct QEMU to create those files under a different user? Thank you.
2017 Apr 30
0
Re: Libvirtd freezes
...uot;query-acpi-ospm-status"}, {"name": "qom-set"}, {"name": >> "qom-list-types"}, {"name": "qom-list"}, {"name": "qom-get"}, {"name": >> "qmp_capabilities"}, {"name": "pmemsave"}, {"name": "object-del"}, >> {"name": "object-add"}, {"name": "netdev_del"} ....... >> So it would not look like a qemu bug. > > Well, this does not prove that qemu replies to all commands issued by > libvirt. Fo...
2011 Mar 25
0
Some notes on using QMP to hot plug disks
...;}, {"name": "system_reset"}, {"name": "system_powerdown"}, {"name": "device_add"}, {"name": "device_del"}, {"name": "cpu"}, {"name": "memsave"}, {"name": "pmemsave"}, {"name": "migrate"}, {"name": "migrate_cancel"}, {"name": "migrate_set_speed"}, {"name": "client_migrate_info"}, {"name": "migrate_set_downtime"}, {"name": "netdev_add&qu...