----- Original Message ----- > >>>But it only happens when I use KDUMP format instead of NETDUMP_ELF32. > I cannot reconfirm this. Please forget about it. Yes, that's right -- the old NETDUMP_ELF32 format only contained one PT_LOAD segment, so you'll have to make the minor adjustments to make it KDUMP_ELF32. > I forgot to mention one thing. I had to remove the following line from > symbol.c as my target is non-SMP > 1413: lm->mod_percpu = ULONG(modbuf + OFFSET(module_percpu)); > I hope you will find a better way. > > Best Regards, > > Takuo Try this: --- symbols.c 7 Jun 2011 14:35:36 -0000 1.238 +++ symbols.c 21 Jun 2011 13:09:12 -0000 @@ -1410,7 +1410,8 @@ lm->mod_ext_symcnt = mcnt; lm->mod_init_module_ptr = ULONG(modbuf + OFFSET(module_module_init)); - lm->mod_percpu = ULONG(modbuf + OFFSET(module_percpu)); + if (VALID_MEMBER(module_percpu)) + lm->mod_percpu = ULONG(modbuf + OFFSET(module_percpu)); if (THIS_KERNEL_VERSION >= LINUX(2,6,27)) { lm->mod_etext_guess = lm->mod_base + UINT(modbuf + OFFSET(module_core_text_size)); Although I don't see the module.percpu member surrounded by #ifdef CONFIG_SMP in the upstream or older kernels. What does the module structure look like in your kernel sources? Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility