On 2011-11-21 06:06, Wen Congyang wrote: > At 11/18/2011 08:46 PM, Jan Kiszka Write: >> On 2011-11-16 14:29, Dave Anderson wrote: >>> >>> >>> ----- Original Message ----- >>>> 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 >>>> >>>> We have determined to introduce a new command dump to dump memory. >>>> The core file's format can be elf. >>>> >>>> I created a kdump-elf vmcore, and found that it can be used by both >>>> crash and gdb: >>>> > >>> From an enterprise/support point of view, the wholesale replacement >>> of the current use of the savevm dumpfile format by "virsh dump" with >>> this ELF style format would be a *huge* improvement. >> >> Yes, fully agree. Would be cool if that could actually work for both >> crash and gdb. Looking forward! > > Because the memory size for x86 machine can greater than 4G, so we should > create elf64 format core file for 32bit OS. > > I create a vmcore: the guest OS is 32-bit, and the vmcore is elf64 format. > I can use crash to anaylyze it, but gdb can not do the same thing. > > I create a kdump-elf64 vmcore on 32-bit machine, and gdb still can not > anaylyze > it. > > Does gdb support elf64 format core file on x86 box? >
Dunno, but I'm trying to pull in some interested gdb folks. Jan
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