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linux/arch/i386/kernel
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Tian Kevin c8cbee61c9 ACPI: preserve the ebx value in acpi_copy_wakeup_routine 
Register %ebx serves as the "global offset table base register" for
position-independent code.  For absolute code, %ebx serves as a local
register and has no specified role in the function calling sequence.  In
either case, a function must preserve the register value for the caller.

acpi_copy_wakeup_routine overrides %ebx without saving it, this may corrupt
the called data.

Kevin found that most time the value of Sx is saved in %esi, however
sometimes compiler also uses %ebx.  When this happens, suspends fails since
sleep value in ebx is changed by acpi_copy_wakeup_routine.

The same funtion in X86_64 doesn't have this problem.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Looks-okay-to: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-24 08:59:12 -07:00
..
acpi ACPI: preserve the ebx value in acpi_copy_wakeup_routine 2007-06-24 08:59:12 -07:00
cpu x86_64: fix link warning between for .text and .init.text 2007-06-20 14:27:26 -07:00
.gitignore [PATCH] x86: gitignore some autogenerated files for i386 2006-02-14 16:09:35 -08:00
alternative.c Revert "[PATCH] x86: __pa and __pa_symbol address space separation" 2007-05-07 08:44:24 -07:00
apic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
apm.c apm: fix incorrect comment 2007-05-08 11:15:10 -07:00
asm-offsets.c [PATCH] i386: map enough initial memory to create lowmem mappings 2007-05-02 19:27:16 +02:00
bootflag.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cpuid.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crash_dump.c [PATCH] kdump: read previous kernel's memory 2006-01-10 08:01:28 -08:00
crash.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
doublefault.c [PATCH] i386: i386 separate hardware-defined TSS from Linux additions 2007-05-02 19:27:13 +02:00
e820.c [PATCH] i386: Drop noisy e820 debugging printks 2007-05-02 19:27:21 +02:00
early_printk.c
efi_stub.S [PATCH] x86: remove unused include from efi_stub.S 2006-09-26 08:48:56 -07:00
efi.c EFI: warn only for pre-1.00 system tables 2007-05-08 11:15:10 -07:00
entry.S [PATCH] i386: fix wrong comment for syscall stack layout 2007-05-02 19:27:19 +02:00
head.S Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization" 2007-05-10 09:26:53 -07:00
hpet.c [PATCH] Add suspend/resume for HPET 2007-03-29 10:25:32 -07:00
i386_ksyms.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
i387.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i8237.c [PATCH] mmc (mainly): add "or later" clause to licence statement. 2006-10-01 00:39:23 -07:00
i8253.c [VOYAGER] clockevents: correct boot cpu is zero assumption 2007-05-01 10:06:42 -05:00
i8259.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io_apic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ioport.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
irq.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
kprobes.c Kprobes: The ON/OFF knob thru debugfs 2007-05-08 11:15:19 -07:00
ldt.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
legacy_serial.c x86, serial: convert legacy COM ports to platform devices 2007-05-08 11:15:23 -07:00
machine_kexec.c [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
Makefile i386: move common parts of smp into their own file 2007-05-15 08:54:00 -07:00
mca.c [PATCH] i386: replace kmalloc+memset with kzalloc 2006-12-07 02:14:19 +01:00
microcode.c microcode: fix section mismatch warning 2007-06-01 08:18:30 -07:00
module.c [PATCH] Generic BUG for i386 2006-12-08 08:28:39 -08:00
mpparse.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
msr.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
nmi.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
numaq.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
paravirt.c Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization" 2007-05-10 09:26:53 -07:00
pci-dma.c x86: Disable DAC on VIA bridges 2007-06-20 14:27:25 -07:00
pcspeaker.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
process.c SLUB: i386 support 2007-05-12 11:26:22 -07:00
ptrace.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
quirks.c [PATCH] x86: revert x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525 2007-05-02 19:27:04 +02:00
reboot_fixups.c [PATCH] i386: clean up mach_reboot_fixups 2007-05-02 19:27:06 +02:00
reboot.c Work around Dell E520 BIOS reboot bug 2007-06-01 08:18:28 -07:00
relocate_kernel.S [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
scx200.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
setup.c [PATCH] clocksource init adjustments (fix bug #7426) 2007-03-05 07:57:53 -08:00
sigframe.h [PATCH] __user annotations for pointers in i386 sigframe 2005-09-09 10:31:59 -07:00
signal.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
smp.c i386: don't check_pgt_cache in flush_tlb_mm 2007-05-17 05:23:05 -07:00
smpboot.c smpboot: fix cachesize comparison in smp_tune_scheduling() 2007-05-31 07:55:16 -07:00
smpcommon.c i386: move common parts of smp into their own file 2007-05-15 08:54:00 -07:00
srat.c ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT 2007-02-02 21:47:33 -05:00
summit.c
sys_i386.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
syscall_table.S signal/timer/event: eventfd wire up x86 arches 2007-05-11 08:29:37 -07:00
sysenter.c [PATCH] i386: In compat mode, the return value here was uninitialized. 2007-05-02 19:27:16 +02:00
time.c [PATCH] i386: pit_latch_buggy has no effect 2007-05-02 19:27:05 +02:00
topology.c Replace remaining references to "driverfs" with "sysfs". 2007-02-17 19:13:42 +01:00
trampoline.S [PATCH] i386: Rename boot_gdt_table to boot_gdt 2007-05-02 19:27:10 +02:00
traps.c Revert "ipmi: add new IPMI nmi watchdog handling" 2007-05-14 15:24:24 -07:00
tsc_sync.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
tsc.c [PATCH] i386: remove xtime_lock'ing around cpufreq notifier 2007-05-02 19:27:18 +02:00
verify_cpu.S i386: Enable CX8/PGE CPUID bits early on VIA C3 2007-05-21 09:56:57 -07:00
vm86.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
vmi.c Fix vmi.c compilation 2007-06-01 08:18:27 -07:00
vmiclock.c [PATCH] i386: Convert VMI timer to use clock events 2007-05-02 19:27:16 +02:00
vmlinux.lds.S all-archs: consolidate .data section definition in asm-generic 2007-05-19 09:11:57 +02:00
vsyscall-int80.S
vsyscall-note.S
vsyscall-sigreturn.S [PATCH] Mark unwind info for signal trampolines in vDSOs 2006-03-31 12:18:52 -08:00
vsyscall-sysenter.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
vsyscall.lds.S [PATCH] i386: VDSO_PRELINK warning fix 2007-05-02 19:27:09 +02:00
vsyscall.S