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openSUSE:Evergreen:11.1:kernel-2.6.32
kexec-tools
kexec-tools-proc-iomem-xen.diff
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File kexec-tools-proc-iomem-xen.diff of Package kexec-tools
From: Bernhard Walle <bwalle@suse.de> Subject: [PATCH] Don't use /sys/firmware/memmap with Xen On Xen (Dom0) kernels, the /sys/firmware/memmap is wrong. Just use the old /proc/iomem there. Signed-off-by: Bernhard Walle <bwalle@suse.de> --- kexec/arch/i386/kexec-x86-common.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/kexec/arch/i386/kexec-x86-common.c +++ b/kexec/arch/i386/kexec-x86-common.c @@ -147,7 +147,13 @@ int get_memory_ranges(struct memory_rang { int ret, i; - if (have_sys_firmware_memmap()) + /* + * When using Xen, /sys/firmware/memmap (i.e., the E820 map) is + * wrong, it just provides one large memory are and that cannot + * be used for Kdump. Use always the /proc/iomem interface there + * even if we have /sys/firmware/memmap. + */ + if (!xen_present() && have_sys_firmware_memmap()) ret = get_memory_ranges_sysfs(range, ranges); else ret = get_memory_ranges_proc_iomem(range, ranges);
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