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 try to make some time for this. 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 implement the changes to their software without needing my help. John Ogness _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
