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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-13 11:05:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-13 11:05:51 +0200 |
| commit | accba5f3965d6a9d1bf7c1e1a7995d17e9d521b6 (patch) | |
| tree | 8fb40782e79472ed882ff2098d4dd295557278ee /arch/x86/boot/main.c | |
| parent | 6852fd9b86d05063c6ef49d2e12e061cc7f6a105 (diff) | |
| parent | 4480f15b3306f43bbb0310d461142b4e897ca45b (diff) | |
Merge branch 'linus' into oprofile-v2
Conflicts:
arch/x86/kernel/apic_32.c
arch/x86/oprofile/nmi_int.c
include/linux/pci_ids.h
Diffstat (limited to 'arch/x86/boot/main.c')
| -rw-r--r-- | arch/x86/boot/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c index 2296164b54d2..197421db1af1 100644 --- a/arch/x86/boot/main.c +++ b/arch/x86/boot/main.c @@ -73,6 +73,11 @@ static void keyboard_set_repeat(void) */ static void query_ist(void) { + /* Some older BIOSes apparently crash on this call, so filter + it from machines too old to have SpeedStep at all. */ + if (cpu.level < 6) + return; + asm("int $0x15" : "=a" (boot_params.ist_info.signature), "=b" (boot_params.ist_info.command), |