Symbol: reset_vga is in a bss section cannot set

[Roger R. Cruz]

Binary package hint: kexec-tools

I'm running privately compiled Ubuntu 10.4 and a privately compiled version of kexec-tools-2.0.1-1ubuntu3.diff applied to kexec-tools-2.0.1. When I try to run kexec via the following command

/sbin/kexec -p --args-linux --append=root=/dev/mapper/NxVG-NxDisk5 ro quiet splash kdump_needed irqpoll maxcpus=1 reset_devices kdump-xenversion=3.4.2 kdump-linuxversion=2.6.32-orc --ramdisk=/boot/initrd.img-2.6.32-orc /boot/vmlinuz-2.6.32-orc-kdump

I get the following error:

Symbol: reset_vga is in a bss section cannot set

The crashkernel being downloaded is also a privately build Ubuntu 10.4 with SMP disabled, and kernel crash dumps enabled.

This used to work fine in Ubuntu 9.04 with kexec-tools-2.0.0 (again, all privately compiled from sources).

Any help would be appreciated

Thanks
Roger R. Cruz

[Roger R. Cruz (roger-cruz-virtualcomputer)]

I got through this problem after several hours of debugging the ELF format and the purgatory code. The symbol information for this variables appears to point to a table not allowed by kexec. By adding the compiler flag "no-zero-initialized-in-bss", I was allowed to install the kernel.

diff -r 5237ea698c92 kexec-tools-2.0.1/purgatory/Makefile
--- a/kexec-tools-2.0.1/purgatory/Makefile
+++ b/kexec-tools-2.0.1/purgatory/Makefile
@@ -47,7 +47,7 @@
 $(PURGATORY): CC=$(TARGET_CC)
 $(PURGATORY): CFLAGS+=$(PURGATORY_EXTRA_CFLAGS) \
         $($(ARCH)_PURGATORY_EXTRA_CFLAGS) \
- -Os -fno-builtin -ffreestanding
+ -Os -fno-builtin -ffreestanding -fno-zero-initialized-in-bss

 $(PURGATORY): CPPFLAGS=$($(ARCH)_PURGATORY_EXTRA_CFLAGS) \
    -I$(srcdir)/purgatory/include \