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| author | Shaohua Li <shaohua.li@intel.com> | 2005-06-25 14:54:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:28 -0700 |
| commit | d92de65cab5980c16d4a1c326c1ef9a591892883 (patch) | |
| tree | 98f3ae9c33f18a126d7e0f2e800b6b65631180d0 | |
| parent | a13db56624c2a9d6c0dae0a693b25b0e58de9ea3 (diff) | |
| download | linux-stable-d92de65cab5980c16d4a1c326c1ef9a591892883.tar.gz linux-stable-d92de65cab5980c16d4a1c326c1ef9a591892883.tar.bz2 linux-stable-d92de65cab5980c16d4a1c326c1ef9a591892883.zip | |
[PATCH] variable overflow after hundreds round of hotplug CPU
I'm doing the cpu hotplug stress test and found a variable ('ready') is
overflow after several hundreds rounds of cpu hotplug. Here is a fix.
Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/i386/kernel/head.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index e966fc8c44c4..4477bb107098 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S @@ -299,7 +299,6 @@ is386: movl $2,%ecx # set MP movl %eax,%cr0 call check_x87 - incb ready lgdt cpu_gdt_descr lidt idt_descr ljmp $(__KERNEL_CS),$1f @@ -316,8 +315,9 @@ is386: movl $2,%ecx # set MP lldt %ax cld # gcc2 wants the direction flag cleared at all times #ifdef CONFIG_SMP - movb ready, %cl - cmpb $1,%cl + movb ready, %cl + movb $1, ready + cmpb $0,%cl je 1f # the first CPU calls start_kernel # all other CPUs call initialize_secondary call initialize_secondary |