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. Thanks. Lianbo > implement the changes to their software without needing my help. > > John Ogness > _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
