At 03/08/2012 01:38 AM, Luiz Capitulino Wrote: > On Mon, 5 Mar 2012 21:41:02 -0300 > Luiz Capitulino <lcapitul...@redhat.com> wrote: > >> On Mon, 05 Mar 2012 17:12:00 +0800 >> Wen Congyang <we...@cn.fujitsu.com> wrote: >> >>> At 03/02/2012 05:59 PM, Wen Congyang Wrote: >>>> Hi, all >>>> >>>> 'virsh dump' can not work when host pci device is used by guest. We have >>>> discussed this issue here: >>>> http://lists.nongnu.org/archive/html/qemu-devel/2011-10/msg00736.html >>>> >>>> The last version is here: >>>> http://lists.nongnu.org/archive/html/qemu-devel/2012-02/msg04228.html >>>> >>>> We have determined to introduce a new command dump to dump memory. The core >>>> file's format can be elf. >>>> >>>> Note: >>>> 1. The guest should be x86 or x86_64. The other arch is not supported now. >>>> 2. If you use old gdb, gdb may crash. I use gdb-7.3.1, and it does not >>>> crash. >>>> 3. If the OS is in the second kernel, gdb may not work well, and crash can >>>> work by specifying '--machdep phys_addr=xxx' in the command line. The >>>> reason is that the second kernel will update the page table, and we can >>>> not get the page table for the first kernel. >>>> 4. The cpu's state is stored in QEMU note. You neet to modify crash to use >>>> it to calculate phys_base. >>>> 5. If the guest OS is 32 bit and the memory size is larger than 4G, the >>>> vmcore >>>> is elf64 format. You should use the gdb which is built with >>>> --enable-64-bit-bfd. >>>> 6. This patchset is based on the upstream tree, and apply one patch that >>>> is still >>>> in Luiz Capitulino's tree, because I use the API qemu_get_fd() in this >>>> patchset. >>>> >>> >>> Hi, Jan, Luiz Capitulino >>> Do you have any comments? >> >> I haven't had a chance to review it yet, will do in the next few days. > > Wen, I've started reviewing this but before I ask you to make more changes > to this series, it's better to wait for a conclusion of the asynchronous > command discussion thread: > > http://lists.gnu.org/archive/html/qemu-devel/2012-03/msg01067.html
OK. I see this thread. Thanks Wen Congyang > > >
