Dave Anderson wrote: > Hi Gui, > > This is the patch that is queued for the next release: > > http://people.redhat.com/anderson/qemu_block_kvmclock_devices.patch Hi Dave, Thanks for the patch, i'd like to try it. Thanks Gui > > I've tested it against the dumpfile that you made available. > > Thank you for your help, and to Paolo for the patch. > > Dave > > ----- "Gui Jianfeng" <guijianfeng@xxxxxxxxxxxxxx> wrote: > >> Gui Jianfeng wrote: >>> Dave Anderson wrote: >>>> ----- "Gui Jianfeng" <guijianfeng@xxxxxxxxxxxxxx> wrote: >>>> >>>>> Dave Anderson wrote: >>>>>> ----- "Dave Anderson" <anderson@xxxxxxxxxx> wrote: >>>>>> >>>>>>> ----- "Paolo Bonzini" <pbonzini@xxxxxxxxxx> wrote: >>>>>>> >>>>>>>>> According to coredump, seems crash crashed at get_idt_base(). >>>>>>>>> device_find_instance() fails to find "cpu" instance. >>>>>>>> I think Dave already has a patch for this. >>>>>>>> >>>>>>>> Paolo >>>>>>> The patch for get_idt_base() was put in crash version 5.0.4. >>>>>>> Looking back at the mail archives, though, I don't see what >>>>>>> version Gui is/was using? >>>>>>> >>>>>>> Dave >>>>>> Now I see with the crash debug output that Gui is using version >>>>>> 5.0.3. Can you please retry Paolo's patch on top of version >>>>>> 5.0.4? >>>>>> >>>>> Hi Dave, >>>>> >>>>> I did apply Paolo's patch on top of version 5.0.4, the bug is >> still there. >>>>> I checked the 5.0.4 changelog and didn't see the fix for this. >>>> Sorry, the 5.0.4 fix I was referring to was in get_kernel_base(), >> which is >>>> called with the result from get_idt_base(). So, just to be clear, >> when it >>>> crashes in get_idt_base(), it's because device_find_instance() call >> returns >>>> a NULL? >>> That's true. >>> >>>> static uint64_t >>>> get_idt_base(struct qemu_device_list *dl) >>>> { >>>> struct qemu_device_x86 *dx86 = (struct qemu_device_x86 >> *) >>>> device_find_instance (dl, "cpu", 0); >>>> >>>> return dx86->idt.base; >>>> } >>>> >>>> So, it seems that with Paolo's patch, it can find the "block" device, but >>>> then can no longer find the "cpu" device? >>> Yes. >>> >>>> Can you make a vmlinux/vmcore pair available for me to download? >>> Ok, will do later. >> Hi Dave, >> >> Please use the following link to download the vmlinux/vmcore >> >> http://dl.dropbox.com/u/4918988/core.dump >> http://dl.dropbox.com/u/4918988/f12_vmlinux >> > > -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
