Re: [PATCH v2 3/8] kexec: export PG_offline to VMCOREINFO

2019-03-11 Thread Dave Young
> > The patch has been merged, would you mind to send a documentation patch > > for the vmcoreinfo, which is added recently in > > Documentation/kdump/vmcoreinfo.txt > > > > A brief description about how this vmcoreinfo field is used is good to > > have. > > > > Turns out, it was already docume

Re: [PATCH v2 3/8] kexec: export PG_offline to VMCOREINFO

2019-03-11 Thread David Hildenbrand
On 11.03.19 10:04, Dave Young wrote: > Hi David, > On 11/22/18 at 11:06am, David Hildenbrand wrote: >> Right now, pages inflated as part of a balloon driver will be dumped >> by dump tools like makedumpfile. While XEN is able to check in the >> crash kernel whether a certain pfn is actuall backed b

Re: [PATCH v2 3/8] kexec: export PG_offline to VMCOREINFO

2019-03-11 Thread Dave Young
Hi David, On 11/22/18 at 11:06am, David Hildenbrand wrote: > Right now, pages inflated as part of a balloon driver will be dumped > by dump tools like makedumpfile. While XEN is able to check in the > crash kernel whether a certain pfn is actuall backed by memory in the > hypervisor (see xen_oldmem

[PATCH v2 3/8] kexec: export PG_offline to VMCOREINFO

2018-11-22 Thread David Hildenbrand
Right now, pages inflated as part of a balloon driver will be dumped by dump tools like makedumpfile. While XEN is able to check in the crash kernel whether a certain pfn is actuall backed by memory in the hypervisor (see xen_oldmem_pfn_is_ram) and optimize this case, dumps of other balloon inflate