在 2020年07月02日 21:31, Petr Mladek 写道: > On Thu 2020-07-02 17:43:22, lijiang wrote: >> 在 2020年07月02日 17:02, John Ogness 写道: >>> On 2020-07-02, lijiang <lijiang@xxxxxxxxxx> wrote: >>>> About the VMCOREINFO part, I made some tests based on the kernel patch >>>> v3, the makedumpfile and crash-utility can work as expected with your >>>> patch(userspace patch), but, unfortunately, the vmcore-dmesg(kexec-tools) >>>> can't correctly read the printk ring buffer information, and get the >>>> following error: >>>> >>>> "Missing the log_buf symbol" >>>> >>>> The kexec-tools(vmcore-dmesg) should also have a similar patch, just like >>>> in the makedumpfile and crash-utility. >>> >>> Yes, a patch for this is needed (as well as for any other related >>> software floating around the internet). >>> >>> I have no RFC patches for vmcore-dmesg. Looking at the code, I think it >>> would be quite straight forward to port the makedumpfile patch. I will >> >> Yes, it should be a similar patch. >> >>> try to make some time for this. >>> >> That would be nice. Thank you, John Ogness. >> >>> I do not want to patch any other software for this. I think with 3 >>> examples (crash, makedumpfile, vmcore-dmesg), others should be able to >> >> It's good enough to have the patch for the makedumpfile, crash and vmcore-dmesg, >> which can ensure the kdump(userspace) work well. > > I agree that this three are the most important ones and should be > enough. > > Thanks a lot for working on it and testing it. > My pleasure. I will test the vmcore-dmesg later. Thanks. Lianbo > Best Regards, > Petr > _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
