On 10/24/2011 04:25 PM, Dave Anderson wrote: > > The question is that: 'virsh dump' can not be used when host pci device > > is used by guest. We are discussing how to fix the problem. We have > > determined > > that introduce a new monitor command dump. Jan suggested that the core > > file's > > format is gdb standard core format. Does crash support such format? If no, > > is it possible to support such format? > > If you are talking about an ELF core dump of the user-space qemu-kvm process > running on the host, then it's certainly not supported.
No, an ELF image of the guest's physical memory. > As to whether it's possible, I suppose it could be done if a > phyical-memory-read > function could be created for it, similar to what I asked about for live > analysis > of a guest kernel run on/from the KVM host. We could use the gdb protocol for this. Currently it reads/writes virtual memory, but we could extend the gdbserver command to make these commands apply to physical memory. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.
