kevin/linux
1
Fork 0
Code
944d2647dd
linux/arch/x86_64/kernel
History
Andi Kleen 944d2647dd [PATCH] x86_64: Drop global bit from early low mappings 
Drop global bit from early low mappings

Suggested by Linus, originally also proposed by Suresh.

This fixes a race condition with early start of udev, originally
tracked down by Suresh B. Siddha. The problem was that switching
to the user space VM would not clear the global low mappings
for the beginning of memory, which lead to memory corruption.

Drop the global bits.

The kernel mapping stays global because it should stay constant.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-04 15:56:52 -07:00
..
acpi [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
cpufreq Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
aperture.c [PATCH] x86-64: Don't allocate aperture when swiotlb is enabled and no AGP found 2005-09-12 10:49:56 -07:00
apic.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
asm-offsets.c [PATCH] x86-64: Some cleanup and optimization to the processor data area. 2005-09-12 10:49:58 -07:00
crash.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
e820.c [PATCH] x86_64: e820.c needs module.h 2005-09-17 11:50:00 -07:00
early_printk.c [PATCH] x86-64: Add simnow console 2005-09-12 10:49:58 -07:00
entry.S [PATCH] x86-64: Fix CFI information 2005-09-12 10:50:56 -07:00
genapic_cluster.c [PATCH] x86-64: Remove obsolete APIC "write around" bug workaround 2005-09-12 10:49:55 -07:00
genapic_flat.c [PATCH] x86-64: Delivery mode should be APIC_DM_FIXED when using physical mode. 2005-09-12 10:50:56 -07:00
genapic.c [PATCH] x86-64: Use physflat on Intel for < 8 CPUs with CPU hotplug 2005-09-12 10:50:56 -07:00
head64.c [PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options 2005-06-23 09:45:06 -07:00
head.S [PATCH] x86_64: Drop global bit from early low mappings 2005-10-04 15:56:52 -07:00
i387.c [PATCH] x86_64: Change init sections for CPU hotplug support 2005-06-25 16:24:30 -07:00
i8259.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
init_task.c [PATCH] x86-64: Set the stack pointer correctly in init_thread and init_tss 2005-09-12 10:50:57 -07:00
io_apic.c Partially revert "Fix time going twice as fast problem on ATI Xpress chipsets" 2005-09-14 15:56:27 -07:00
ioport.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c [PATCH] Remove unnecessary BUG_ON in irq.c 2005-09-12 10:50:55 -07:00
kprobes.c [PATCH] utilization of kprobe_mutex is incorrect on x86_64 2005-09-30 12:41:20 -07:00
ldt.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machine_kexec.c [PATCH] x86_64 machine_kexec: Use standard pagetable helpers 2005-07-29 13:12:49 -07:00
Makefile [PATCH] x86-64: Merge msr.c with i386 version 2005-09-12 10:50:57 -07:00
mce_intel.c [PATCH] x86_64: Change init sections for CPU hotplug support 2005-06-25 16:24:30 -07:00
mce.c [PATCH] x86_64: Fix mce_log 2005-09-29 15:41:42 -07:00
module.c [PATCH] uml: kludgy compilation fixes for x86-64 subarch modules support 2005-05-05 16:36:33 -07:00
mpparse.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
nmi.c [PATCH] x86_64: NMI watchdog frequency calculation adjustments 2005-09-13 08:22:33 -07:00
pci-dma.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-gart.c [PATCH] x86-64: Micro optimization to dma_alloc_coherent node lookup 2005-09-12 10:49:57 -07:00
pci-nommu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pmtimer.c [PATCH] x86_64: Add pmtimer support 2005-05-17 07:59:15 -07:00
process.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
ptrace.c [PATCH] x86_64: TASK_SIZE fixes for compatibility mode processes 2005-06-21 18:46:12 -07:00
reboot.c [PATCH] x86_64 sync machine_power_off with i386 2005-07-26 14:35:45 -07:00
relocate_kernel.S [PATCH] kexec: x86_64 kexec implementation 2005-06-25 16:24:50 -07:00
setup64.c [PATCH] x86-64: Only allocate per cpu data for possible CPUs, not compiled in CPUs. 2005-09-12 10:49:58 -07:00
setup.c [PATCH] x86_64: Fix numa node topology detection for srat based x86_64 boxes 2005-10-03 10:54:22 -07:00
signal.c [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
smp.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
smpboot.c [PATCH] x86-64: more gratitious linux/irq.h includes 2005-09-12 10:50:58 -07:00
suspend_asm.S kbuild: alpha,x86_64 use generic asm-offsets.h support 2005-09-09 21:28:48 +02:00
suspend.c [PATCH] x86-64: Clean up includes in arch/x86_64/kernel/suspend.c 2005-09-12 10:50:57 -07:00
sys_x86_64.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
syscall.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
time.c [PATCH] x86-64: Fix bad assumption that dualcore cpus have synced TSCs 2005-09-28 07:46:41 -07:00
trampoline.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
traps.c [PATCH] x86-64: reduce x86-64 bug frame by 4 bytes 2005-09-12 10:50:58 -07:00
vmlinux.lds.S [PATCH] x86_64 linker script cleanups for debug sections 2005-09-10 12:00:17 -07:00
vsyscall.c [PATCH] x86-64: Prevent gcc 4 from optimizing away vsyscalls 2005-09-12 10:50:56 -07:00
x8664_ksyms.c [LIB]: Consolidate _atomic_dec_and_lock() 2005-09-14 21:47:01 -07:00