Messages in this thread Patch in this message |  | | | Date | Fri, 3 Apr 2009 17:33:32 GMT | | From | Russ Anderson <> | | Subject | [tip:x86/uv] x86, UV: system table in bios accessed after unmap |
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Commit-ID: 1a544e659cbfce178395e9a090a47d1907d0cfa8 Gitweb: http://git.kernel.org/tip/1a544e659cbfce178395e9a090a47d1907d0cfa8 Author: Russ Anderson <rja@sgi.com> AuthorDate: Mon, 30 Mar 2009 17:52:40 -0500 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Fri, 3 Apr 2009 19:25:57 +0200
x86, UV: system table in bios accessed after unmap
Use the copy of UV system table in kernel memory, not the one in bios after unmapping.
Signed-off-by: Russ Anderson <rja@sgi.com> LKML-Reference: <20090330225240.GA22776@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
--- arch/x86/kernel/bios_uv.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c index f638827..63a88e1 100644 --- a/arch/x86/kernel/bios_uv.c +++ b/arch/x86/kernel/bios_uv.c @@ -182,7 +182,8 @@ void uv_bios_init(void) memcpy(&uv_systab, tab, sizeof(struct uv_systab)); iounmap(tab); - printk(KERN_INFO "EFI UV System Table Revision %d\n", tab->revision); + printk(KERN_INFO "EFI UV System Table Revision %d\n", + uv_systab.revision); } #else /* !CONFIG_EFI */
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