https://bugzilla.suse.com/show_bug.cgi?id=1190434 https://bugzilla.suse.com/show_bug.cgi?id=1190434#c29 --- Comment #29 from David Mair <dmair@suse.com> --- For the record, the current discussion is a different bug from the original report. However... After debugging in gdb, the following error:
WARNING: invalid linux_banner pointer: 65762078756e694c crash: /var/tmp/vmlinux.xz_CSsIpp and /var/crash/2023-05-02-00:13/vmcore do not match!
Occurs in this:
if (!(sp = symbol_search("linux_banner"))) error(FATAL, "linux_banner symbol does not exist?\n"); else if ((sp->type == 'R') || (sp->type == 'r') || (THIS_KERNEL_VERSION >= LINUX(2,6,11) && (sp->type == 'D' || sp->type == 'd')) || (machine_type("ARM") && sp->type == 'T') || (machine_type("ARM64"))) linux_banner = symbol_value("linux_banner"); else get_symbol_data("linux_banner", sizeof(ulong),
The reason in the case of the coredump I'm looking at is that sp->type for linux_banner is 'B' so we take the last false block and get_symbol_data() when we should set linux_banner = symbol_value() instead. I can test my case but I won't commit it until I've seen the others experiencing it that I'm aware of reporting a patch to test sp->type == 'B' works for their versions. I don't have a crash 7 patched for now but I have a teammate who should be able to check the result using a crash 8.0.3 build I just made with a fix. -- You are receiving this mail because: You are on the CC list for the bug.