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* Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2
@ 2007-06-19 17:09 Mathieu Desnoyers
  2007-06-19 20:01 ` Problem with global_flush_tlb() on i386 (x86_64? too) " Mathieu Desnoyers
  2007-06-20  1:23 ` Problem with global_flush_tlb() on i386 " Anthony Liguori
  0 siblings, 2 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-19 17:09 UTC (permalink / raw)
  To: linux-kernel, akpm; +Cc: mbligh

Hi,

Trying to test my "Text Edit Lock" patches, I ran into a problem related
to global_flush_tlb() not doing its job at updating the page flags when,
it seems, the page has been recently accessed. Therefore, it can only be
reproduced by doing a couple of iterations.

I run on a Pentium 4 with the following characteristics:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping        : 1
cpu MHz         : 3000.201
cache size      : 1024 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
constant_tsc pebs bts sync_rdtsc pni monitor ds_cpl cid xtpr
bogomips        : 6007.49
clflush size    : 64

config :
CONFIG_X86_INVLPG=y (complete .config at the end)
CONFIG_PARAVIRT=y/n


(notice that pge and clflush features are present)

The kernel is configured in UP (I first saw the problem in SMT, but
switched to UP and it is still there).

I provide a really crude hackish test module that shows the problematic
behavior below.

Whenever I run the module using global_flush_tlb(), I get the following
OOPS:


[ 1112.512389] Init Attr RX
[ 1112.521691] Init Attr RX end
[ 1113.702965] Loop 0
[ 1113.709171] Attr RWX 621545
[ 1113.717662] Attr RX 621545
[ 1113.725869] Attr RWX 432917
[ 1113.734295] Attr RX 432917
[ 1113.742460] Attr RWX 973425
[ 1113.750885] Attr RX 973425
[ 1113.759048] Attr RWX 453890
[ 1113.767490] Attr RX 453890
[ 1113.775653] Attr RWX 1035918
[ 1113.784341] Attr RX 1035918
[ 1113.792764] Attr RWX 1038276
[ 1113.801449] Attr RX 1038276
[ 1113.809902] Attr RWX 71394
[ 1113.818067] Attr RX 71394
[ 1113.825970] Attr RWX 88253
[ 1113.834134] Attr RX 88253
[ 1113.842039] Attr RWX 108029
[ 1113.850505] Attr RX 108029
[ 1113.858670] Attr RWX 767772
[ 1113.867095] Attr RX 767772
[ 1113.875259] Attr RWX 251394
[ 1113.883694] Attr RX 251394
[ 1113.891859] Attr RWX 817582
[ 1113.900376] Attr RX 817582
[ 1113.908540] Attr RWX 577819
[ 1113.916965] Attr RX 577819
[ 1113.925127] Attr RWX 56979
[ 1113.933293] Attr RX 56979
[ 1113.941195] Attr RWX 72953
[ 1113.949361] Attr RX 72953
[ 1113.957265] Attr RWX 94222
[ 1113.965445] BUG: unable to handle kernel paging request at virtual address c3a1700e
[ 1113.988291]  printing eip:
[ 1113.996340] f885e0a6
[ 1114.002835] *pde = 038c6163
[ 1114.011145] *pte = 03a17163
[ 1114.019455] Oops: 0003 [#1]
[ 1114.027766] PREEMPT 
[ 1114.034268] LTT NESTING LEVEL : 0 
[ 1114.044402] Modules linked in: test_rodata ltt_statedump ltt_control sky2 skge rtc snd_hda_intel
[ 1114.070679] CPU:    0
[ 1114.070680] EIP:    0060:[<f885e0a6>]    Not tainted VLI
[ 1114.070681] EFLAGS: 00010282   (2.6.22-rc4-mm2-testssmp #129)
[ 1114.110395] EIP is at my_open+0xa6/0x124 [test_rodata]
[ 1114.125711] eax: c3a00000   ebx: 0001700e   ecx: c39e4000   edx: 00000000
[ 1114.145953] esi: 36f1700e   edi: f885e000   ebp: c39e5ebc   esp: c39e5ea0
[ 1114.166195] ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
[ 1114.183583] Process cat (pid: 4112, ti=c39e4000 task=c38ac1b0 task.ti=c39e4000)
[ 1114.204862] Stack: f885e223 0001700e 00000000 0000f000 c31d3480 00000000 f885e000 c39e5ed8 
[ 1114.229843]        c01a3c2a c39d2540 c368d4a8 c39d2540 00000000 c368d4a8 c39e5ef8 c016f5d9 
[ 1114.254830]        c1c0eec0 c378ccfc c39e5eec c39d2540 00008000 c39e5f1c c39e5f0c c016f76b 
[ 1114.279814] Call Trace:
[ 1114.287620]  [<c01a3c2a>] proc_reg_open+0x42/0x68
[ 1114.301655]  [<c016f5d9>] __dentry_open+0xe6/0x1e2
[ 1114.315944]  [<c016f76b>] nameidata_to_filp+0x35/0x3f
[ 1114.331008]  [<c016f7b0>] do_filp_open+0x3b/0x43
[ 1114.344777]  [<c016f7fb>] do_sys_open+0x43/0x116
[ 1114.358545]  [<c016f906>] sys_open+0x1c/0x1e
[ 1114.371274]  [<c0104128>] syscall_call+0x7/0xb
[ 1114.384524]  [<ffffe410>] 0xffffe410
[ 1114.395178]  =======================
[ 1114.405823] INFO: lockdep is turned off.
[ 1114.417504] Code: 60 df 7c c0 b9 63 01 00 00 ba 01 00 00 00 e8 3f 7d 8b c7 0f ae f0 89 f6 e8 5c 80 8b c7 0f ae f0 89 f6 a1 88 eb 85 f8 0f b6 55 f0 <88> 14 03 0f ae f0 89 f6 89 d8 03 05 88 eb 85 f8 05 00 00 00 40 
[ 1114.474329] EIP: [<f885e0a6>] my_open+0xa6/0x124 [test_rodata] SS:ESP 0068:c39e5ea0
[ 1114.497187] BUG: sleeping function called from invalid context at kernel/rwsem.c:20
[ 1114.520025] in_atomic():0, irqs_disabled():1
[ 1114.532744] INFO: lockdep is turned off.
[ 1114.544427] irq event stamp: 1894
[ 1114.554293] hardirqs last  enabled at (1893): [<c03c892b>] _spin_unlock_irq+0x22/0x4e
[ 1114.577666] hardirqs last disabled at (1894): [<c03c8584>] _spin_lock_irqsave+0x25/0x61
[ 1114.601556] softirqs last  enabled at (1886): [<c0122988>] __do_softirq+0xe1/0x184
[ 1114.624149] softirqs last disabled at (1875): [<c0122a9d>] do_softirq+0x72/0x77
[ 1114.645969]  [<c01051bc>] dump_trace+0x1d5/0x204
[ 1114.659737]  [<c0105205>] show_trace_log_lvl+0x1a/0x30
[ 1114.675060]  [<c0105fc2>] show_trace+0x12/0x14
[ 1114.688308]  [<c0105fd9>] dump_stack+0x15/0x17
[ 1114.701557]  [<c0118dbf>] __might_sleep+0xcf/0xe1
[ 1114.715584]  [<c013273c>] down_read+0x18/0x4b
[ 1114.728574]  [<c011f4a0>] exit_mm+0x27/0xd1
[ 1114.741045]  [<c0120bc1>] do_exit+0x10f/0x88f
[ 1114.754035]  [<c01058ef>] do_trap+0x0/0x152
[ 1114.766503]  [<c0115553>] do_page_fault+0x310/0x7ed
[ 1114.781050]  [<c03c8bda>] error_code+0x6a/0x70
[ 1114.794303]  [<f885e0a6>] my_open+0xa6/0x124 [test_rodata]
[ 1114.810665]  [<c01a3c2a>] proc_reg_open+0x42/0x68
[ 1114.824692]  [<c016f5d9>] __dentry_open+0xe6/0x1e2
[ 1114.838979]  [<c016f76b>] nameidata_to_filp+0x35/0x3f
[ 1114.854044]  [<c016f7b0>] do_filp_open+0x3b/0x43
[ 1114.867811]  [<c016f7fb>] do_sys_open+0x43/0x116
[ 1114.881579]  [<c016f906>] sys_open+0x1c/0x1e
[ 1114.894308]  [<c0104128>] syscall_call+0x7/0xb
[ 1114.907557]  [<ffffe410>] 0xffffe410
[ 1114.918212]  =======================

This is clearly the memory write I am trying to do in the page of
which I just changed the attributes to RWX.

If I remove the variable read before I change the flags, it starts
working correctly (as far as I have tested...).

If I use my own my_local_tlb_flush() function (not SMP aware) instead of
global_flush_tlb(), it works correctly.

I also tried just calling clflush on the modified page just after the
global_flush_tlb(), and the problem was still there.

I therefore suspect that

include/asm-i386/tlbflush.h:
#define __native_flush_tlb_global()                                     \
        do {                                                            \
                unsigned int tmpreg, cr4, cr4_orig;                     \
                                                                        \
                __asm__ __volatile__(                                   \
                        "movl %%cr4, %2;  # turn off PGE     \n"        \
                        "movl %2, %1;                        \n"        \
                        "andl %3, %1;                        \n"        \
                        "movl %1, %%cr4;                     \n"        \
                        "movl %%cr3, %0;                     \n"        \
                        "movl %0, %%cr3;  # flush TLB        \n"        \
                        "movl %2, %%cr4;  # turn PGE back on \n"        \
                        : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \
                        : "i" (~X86_CR4_PGE)                            \
                        : "memory");                                    \
        } while (0)

is not doing its job correctly. The problem does not seem to be caused
by PARAVIRT, because it is still buggy even if I disable the PARAVIRT
config option.

This is as far as I went digging into this. Is "movl %0, %%cr3;  # flush
TLB" really flushing the local TLB ? Should invlpg be used instead ?

If you have some advice, it would be welcome,

Thanks,

Mathieu

---- BEGIN ---
/*
 * test-rodata.c
 *
 */

#include <linux/marker.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <asm/timex.h>
#include <asm/ptrace.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>

#define NR_LOOPS 5
#define ASIZE (1024*1024)

volatile char value;
char *array;

struct proc_dir_entry *pentry = NULL;

/*
 * Flush local TLB with invlpg and cache for one address on P4 */
static void my_local_tlb_flush(void *address)
{
	mb();
	__native_flush_tlb_single(address);
	mb();
	asm volatile("clflush (%0)" :: "r" (address));
	mb();
}

static int my_open(struct inode *inode, struct file *file)
{
	unsigned int i,j;

	for(i=0; i<NR_LOOPS; i++) {
		printk("Loop %u\n", i);
		for(j=0; j<ASIZE; j+=4096) {
			/* "random" offset */
			unsigned int offset = get_cycles() % ASIZE;
			/* preload in cache by reading */
			value = array[offset];
			/* Setting page for writing */
			printk("Attr RWX %u\n", offset);
			mb();
			change_page_attr(virt_to_page(&array[offset]), 1,
			__pgprot((_PAGE_KERNEL_EXEC | _PAGE_GLOBAL) | _PAGE_RW));
			mb();
			global_flush_tlb();
			mb();
			//FIX the issue my_local_tlb_flush(&array[offset]);

			/* memory write */
			array[offset] = (char)j;

			/* Setting the page read-only */
			mb();
			change_page_attr(virt_to_page(&array[offset]), 1,
			__pgprot((_PAGE_KERNEL_EXEC & ~_PAGE_RW) | _PAGE_GLOBAL));
			//FIX the issue my_local_tlb_flush(&array[offset]);
			mb();
			global_flush_tlb();
			mb();
			printk("Attr RX %u\n", offset);
		}
	}

	return -EPERM;
}


static struct file_operations my_operations = {
	.open = my_open,
};

int init_module(void)
{
	pentry = create_proc_entry("testrodata", 0444, NULL);
	if (pentry)
		pentry->proc_fops = &my_operations;
	array = kzalloc(ASIZE, GFP_KERNEL);
	printk("Init Attr RX\n");
	change_page_attr(virt_to_page(array), ASIZE/4096,
	__pgprot((_PAGE_KERNEL_EXEC & ~_PAGE_RW) | _PAGE_GLOBAL));
	global_flush_tlb();
	printk("Init Attr RX end\n");


	return 0;
}

void cleanup_module(void)
{
	printk("Exit Attr RWX\n");
	change_page_attr(virt_to_page(array), ASIZE/4096,
	__pgprot((_PAGE_KERNEL) | _PAGE_GLOBAL));
	global_flush_tlb();
	printk("Exit Attr RWX end\n");

	kfree(array);
	remove_proc_entry("testrodata", NULL);
}

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mathieu Desnoyers");
MODULE_DESCRIPTION("rodata test");
--- END ---

Complete .config :

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.22-rc4-mm2
# Tue Jun 19 09:50:24 2007
#
CONFIG_X86_32=y
CONFIG_GENERIC_TIME=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_SEMAPHORE_SLEEPERS=y
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
CONFIG_QUICKLIST=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_DMI=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32

#
# General setup
#
CONFIG_LOCALVERSION="-testssmp"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SWAP_PREFETCH=y
CONFIG_SYSVIPC=y
# CONFIG_IPC_NS is not set
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_UTS_NS is not set
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CONTAINER_DEBUG is not set
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_CONTAINER_CPUACCT is not set
CONFIG_RELAY=y
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROC_SMAPS=y
CONFIG_PROC_CLEAR_REFS=y
CONFIG_PROC_PAGEMAP=y
CONFIG_PROC_KPAGEMAP=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_BLOCK=y
CONFIG_LBD=y
# CONFIG_BLK_DEV_IO_TRACE is not set
CONFIG_LSF=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_AS=y
# CONFIG_DEFAULT_DEADLINE is not set
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="anticipatory"

#
# Processor type and features
#
# CONFIG_TICK_ONESHOT is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
# CONFIG_SMP is not set
CONFIG_X86_PC=y
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_NUMAQ is not set
# CONFIG_X86_SUMMIT is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_VISWS is not set
# CONFIG_X86_GENERICARCH is not set
# CONFIG_X86_ES7000 is not set
CONFIG_PARAVIRT=y
# CONFIG_XEN is not set
# CONFIG_VMI is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MCORE2 is not set
CONFIG_MPENTIUM4=y
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_X86_XADD=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_MODEL=4
# CONFIG_HPET_TIMER is not set
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
# CONFIG_X86_UP_APIC is not set
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
CONFIG_VM86=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_DELL_RBU is not set
CONFIG_DCDBAS=m
CONFIG_DMIID=y
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_2G_OPT is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_RESOURCES_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_NR_QUICK=1
CONFIG_VIRT_TO_BUS=y
# CONFIG_HIGHPTE is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
# CONFIG_EFI is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x100000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x100000
CONFIG_COMPAT_VDSO=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

#
# Power management options (ACPI, APM)
#
CONFIG_PM=y
# CONFIG_PM_LEGACY is not set
# CONFIG_PM_DEBUG is not set
# CONFIG_PM_SYSFS_DEPRECATED is not set
# CONFIG_SOFTWARE_SUSPEND is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_SLEEP_PROC_FS=y
# CONFIG_ACPI_SLEEP_PROC_SLEEP is not set
CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_ASUS is not set
# CONFIG_ACPI_TOSHIBA is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_SBS is not set
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# CPU idle PM support
#
# CONFIG_CPU_IDLE is not set

#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
# CONFIG_PCIEPORTBUS is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
CONFIG_ISA_DMA_API=y
CONFIG_ISA=y
# CONFIG_EISA is not set
# CONFIG_MCA is not set
# CONFIG_SCx200 is not set
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_MISC=y

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IP_VS is not set
# CONFIG_IPV6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
# CONFIG_NF_CONNTRACK_ENABLED is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set

#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_QUEUE=y
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
CONFIG_IEEE80211=m
CONFIG_IEEE80211_DEBUG=y
CONFIG_IEEE80211_CRYPT_WEP=m
CONFIG_IEEE80211_CRYPT_CCMP=m
# CONFIG_IEEE80211_CRYPT_TKIP is not set
# CONFIG_IEEE80211_SOFTMAC is not set
# CONFIG_RFKILL is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set

#
# Protocols
#
# CONFIG_ISAPNP is not set
# CONFIG_PNPBIOS is not set
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_FD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_MISC_DEVICES=y
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_BLINK is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_BLK_DEV_IDEACPI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_CMD640=y
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_CS5535 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
# CONFIG_IDE_ARM is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
CONFIG_SCSI_DPT_I2O=m
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SEAGATE is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_ULTRASTOR is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_ACPI=y
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_SVW is not set
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIL24 is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5535 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_QDI is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_WINBOND_VLB is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_CD_NO_IDESCSI is not set
# CONFIG_MD is not set

#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
# CONFIG_FUSION_SPI is not set
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
CONFIG_IEEE1394=y

#
# Subsystem Options
#
# CONFIG_IEEE1394_VERBOSEDEBUG is not set

#
# Controllers
#

#
# Texas Instruments PCILynx requires I2C
#
CONFIG_IEEE1394_OHCI1394=y

#
# Protocols
#
# CONFIG_IEEE1394_VIDEO1394 is not set
# CONFIG_IEEE1394_SBP2 is not set
# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
# CONFIG_IEEE1394_ETH1394 is not set
# CONFIG_IEEE1394_DV1394 is not set
CONFIG_IEEE1394_RAWIO=y
# CONFIG_I2O is not set
CONFIG_MACINTOSH_DRIVERS=y
# CONFIG_MAC_EMUMOUSEBTN is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_NET_SB1000 is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_NET_TULIP is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_CS89x0 is not set
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
CONFIG_SKGE=m
CONFIG_SKY2=m
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_IXGB is not set
CONFIG_S2IO=m
# CONFIG_S2IO_NAPI is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_RTL818X is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET_MII is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_NVRAM is not set
CONFIG_RTC=m
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set
CONFIG_AGP=y
# CONFIG_AGP_ALI is not set
# CONFIG_AGP_ATI is not set
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=y
# CONFIG_AGP_NVIDIA is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_SWORKS is not set
# CONFIG_AGP_VIA is not set
# CONFIG_AGP_EFFICEON is not set
CONFIG_DRM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_I810 is not set
# CONFIG_DRM_I830 is not set
# CONFIG_DRM_I915 is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_MWAVE is not set
# CONFIG_PC8736x_GPIO is not set
# CONFIG_NSC_GPIO is not set
# CONFIG_CS5535_GPIO is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_HPET is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set

#
# SPI support
#
# CONFIG_SPI is not set
# CONFIG_SPI_MASTER is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_CORETEMP is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
CONFIG_DAB=y
# CONFIG_USB_DABUSB is not set

#
# Graphics support
#
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
# CONFIG_FB is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
# CONFIG_VIDEO_SELECT is not set
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y

#
# Sound
#
CONFIG_SOUND=y

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=y
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_RTCTIMER is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set

#
# ISA devices
#
# CONFIG_SND_ADLIB is not set
# CONFIG_SND_AD1816A is not set
# CONFIG_SND_AD1848 is not set
# CONFIG_SND_ALS100 is not set
# CONFIG_SND_AZT2320 is not set
# CONFIG_SND_CMI8330 is not set
# CONFIG_SND_CS4231 is not set
# CONFIG_SND_CS4232 is not set
# CONFIG_SND_CS4236 is not set
# CONFIG_SND_DT019X is not set
# CONFIG_SND_ES968 is not set
# CONFIG_SND_ES1688 is not set
# CONFIG_SND_ES18XX is not set
# CONFIG_SND_GUSCLASSIC is not set
# CONFIG_SND_GUSEXTREME is not set
# CONFIG_SND_GUSMAX is not set
# CONFIG_SND_INTERWAVE is not set
# CONFIG_SND_INTERWAVE_STB is not set
# CONFIG_SND_OPL3SA2 is not set
# CONFIG_SND_OPTI92X_AD1848 is not set
# CONFIG_SND_OPTI92X_CS4231 is not set
# CONFIG_SND_OPTI93X is not set
# CONFIG_SND_MIRO is not set
# CONFIG_SND_SB8 is not set
# CONFIG_SND_SB16 is not set
# CONFIG_SND_SBAWE is not set
# CONFIG_SND_SGALAXY is not set
# CONFIG_SND_SSCAPE is not set
# CONFIG_SND_WAVEFRONT is not set

#
# PCI devices
#
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5530 is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
CONFIG_SND_HDA_INTEL=m
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
CONFIG_SND_INTEL8X0=y
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_AC97_POWER_SAVE is not set

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_USX2Y is not set
# CONFIG_SND_USB_CAIAQ is not set

#
# System on Chip audio support
#
# CONFIG_SND_SOC is not set

#
# SoC Audio support for SuperH
#

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_PERSIST is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=y

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
CONFIG_USB_MON=y

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
CONFIG_USB_CYTHERM=m
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_GOTEMP is not set

#
# USB DSL modem support
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
# CONFIG_EDAC is not set

#
# Real Time Clock
#
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#

#
# DMA Engine support
#
# CONFIG_DMA_ENGINE is not set

#
# DMA Clients
#

#
# DMA Devices
#
CONFIG_AUXDISPLAY=y
# CONFIG_KS0108 is not set
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
CONFIG_KVM_AMD=m

#
# Userspace I/O
#
# CONFIG_UIO is not set
# CONFIG_LGUEST is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISER4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
# CONFIG_CONFIGFS_FS is not set

#
# Layered filesystems
#
# CONFIG_UNION_FS is not set

#
# Miscellaneous filesystems
#
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=y
# CONFIG_NFSD_V3 is not set
CONFIG_NFSD_TCP=y
CONFIG_LOCKD=y
CONFIG_EXPORTFS=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_SUNRPC_BIND34 is not set
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Distributed Lock Manager
#
# CONFIG_DLM is not set
CONFIG_INSTRUMENTATION=y
# CONFIG_PROFILING is not set
# CONFIG_KPROBES is not set
CONFIG_IMMEDIATE=y
CONFIG_MARKERS=y
CONFIG_LTT=y
CONFIG_LTT_TRACER=y
CONFIG_LTT_RELAY=y
CONFIG_LTT_SERIALIZE=y
CONFIG_LTT_ALIGNMENT=y
# CONFIG_LTT_HEARTBEAT is not set
CONFIG_LTT_TEST_TSC=y
CONFIG_LTT_USERSPACE_GENERIC=y
CONFIG_LTT_NETLINK_CONTROL=m
CONFIG_LTT_STATEDUMP=m

#
# Probes
#
CONFIG_LTT_PROBE_CORE=m
CONFIG_LTT_PROBE_FS=m
CONFIG_LTT_PROBE_KERNEL=m
CONFIG_LTT_PROBE_ARCH=m
CONFIG_LTT_PROBE_MM=m
CONFIG_LTT_PROBE_NET=m
CONFIG_LTT_PROBE_LIST=m
CONFIG_LTT_PROBE_LOCKING=m
# CONFIG_LTT_PROBE_STACK is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_DEBUG_PREEMPT=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
CONFIG_LOCKDEP=y
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_LOCKDEP=y
CONFIG_TRACE_IRQFLAGS=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_HIGHMEM=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_LIST=y
CONFIG_FRAME_POINTER=y
CONFIG_UNWIND_INFO=y
CONFIG_STACK_UNWIND=y
# CONFIG_PROFILE_LIKELY is not set
CONFIG_FORCED_INLINING=y
# CONFIG_DEBUG_SYNCHRO_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_EARLY_PRINTK=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_4KSTACKS is not set
CONFIG_DOUBLEFAULT=y

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=m
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_MANAGER=m
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_586 is not set
# CONFIG_CRYPTO_SERPENT is not set
CONFIG_CRYPTO_AES=m
# CONFIG_CRYPTO_AES_586 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_DEFLATE is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_PADLOCK is not set
CONFIG_CRYPTO_DEV_GEODE=m

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_AUDIT_GENERIC=y
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_KTIME_SCALAR=y


-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2
  2007-06-19 17:09 Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2 Mathieu Desnoyers
@ 2007-06-19 20:01 ` Mathieu Desnoyers
  2007-06-19 21:10   ` [PATCH] Workaround change_page_attr() and global_flush_tlb() df_list inconsistency on i386 Mathieu Desnoyers
  2007-06-20  9:01   ` Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2 Andi Kleen
  2007-06-20  1:23 ` Problem with global_flush_tlb() on i386 " Anthony Liguori
  1 sibling, 2 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-19 20:01 UTC (permalink / raw)
  To: linux-kernel, akpm, ak, mingo; +Cc: mbligh

Looking more closely into the code to find the cause of the
change_page_addr()/global_flush_tlb() inconsistency, I see where the
problem could be:

In arch/i386/mm/pageattr.c:
__change_page_attr adds the page to the df_list for deferred removal
when it is replaced by a large page (going back to the normal flags).
This list is walked by global_flush_tlb(); it calls flush_map() and
__free_page for each of these pages.

flush_map() is the only call that ends up doing a clflush/wbinvd and
__flush_tlb_all() on every cpu. However, this is only done when there
are pages recombined in a large page. It never happens when we set the
page flags to something unusual in __change_page_attr().

The x86_64 implementation seems to work around this issue by doing a
flush_map() independently of the deferred_pages list. It will therefore
call __flush_tlb_all(), which should flush the TLB, but even there, I
wonder if it should call clflush on the pages that had their flags
modified by __change_page_attr() ?

Some input about the best way to fix this (adding the modified pages to
the deferred list in __change_page_attr() or flushing all the TLBs, and
all caches, independently of the deferred pages list in
global_flush_tlb()) would be appreciated. If we add the pages that
simply had their flags modified to the df_list, would it be ok to issue
a __free_page on them ?

Thanks,

Mathieu

* Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca) wrote:
> Hi,
> 
> Trying to test my "Text Edit Lock" patches, I ran into a problem related
> to global_flush_tlb() not doing its job at updating the page flags when,
> it seems, the page has been recently accessed. Therefore, it can only be
> reproduced by doing a couple of iterations.
> 
> I run on a Pentium 4 with the following characteristics:
> 
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 4
> model name      : Intel(R) Pentium(R) 4 CPU 3.00GHz
> stepping        : 1
> cpu MHz         : 3000.201
> cache size      : 1024 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 5
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
> constant_tsc pebs bts sync_rdtsc pni monitor ds_cpl cid xtpr
> bogomips        : 6007.49
> clflush size    : 64
> 
> config :
> CONFIG_X86_INVLPG=y (complete .config at the end)
> CONFIG_PARAVIRT=y/n
> 
> 
> (notice that pge and clflush features are present)
> 
> The kernel is configured in UP (I first saw the problem in SMT, but
> switched to UP and it is still there).
> 
> I provide a really crude hackish test module that shows the problematic
> behavior below.
> 
> Whenever I run the module using global_flush_tlb(), I get the following
> OOPS:
> 
> 
> [ 1112.512389] Init Attr RX
> [ 1112.521691] Init Attr RX end
> [ 1113.702965] Loop 0
> [ 1113.709171] Attr RWX 621545
> [ 1113.717662] Attr RX 621545
> [ 1113.725869] Attr RWX 432917
> [ 1113.734295] Attr RX 432917
> [ 1113.742460] Attr RWX 973425
> [ 1113.750885] Attr RX 973425
> [ 1113.759048] Attr RWX 453890
> [ 1113.767490] Attr RX 453890
> [ 1113.775653] Attr RWX 1035918
> [ 1113.784341] Attr RX 1035918
> [ 1113.792764] Attr RWX 1038276
> [ 1113.801449] Attr RX 1038276
> [ 1113.809902] Attr RWX 71394
> [ 1113.818067] Attr RX 71394
> [ 1113.825970] Attr RWX 88253
> [ 1113.834134] Attr RX 88253
> [ 1113.842039] Attr RWX 108029
> [ 1113.850505] Attr RX 108029
> [ 1113.858670] Attr RWX 767772
> [ 1113.867095] Attr RX 767772
> [ 1113.875259] Attr RWX 251394
> [ 1113.883694] Attr RX 251394
> [ 1113.891859] Attr RWX 817582
> [ 1113.900376] Attr RX 817582
> [ 1113.908540] Attr RWX 577819
> [ 1113.916965] Attr RX 577819
> [ 1113.925127] Attr RWX 56979
> [ 1113.933293] Attr RX 56979
> [ 1113.941195] Attr RWX 72953
> [ 1113.949361] Attr RX 72953
> [ 1113.957265] Attr RWX 94222
> [ 1113.965445] BUG: unable to handle kernel paging request at virtual address c3a1700e
> [ 1113.988291]  printing eip:
> [ 1113.996340] f885e0a6
> [ 1114.002835] *pde = 038c6163
> [ 1114.011145] *pte = 03a17163
> [ 1114.019455] Oops: 0003 [#1]
> [ 1114.027766] PREEMPT 
> [ 1114.034268] LTT NESTING LEVEL : 0 
> [ 1114.044402] Modules linked in: test_rodata ltt_statedump ltt_control sky2 skge rtc snd_hda_intel
> [ 1114.070679] CPU:    0
> [ 1114.070680] EIP:    0060:[<f885e0a6>]    Not tainted VLI
> [ 1114.070681] EFLAGS: 00010282   (2.6.22-rc4-mm2-testssmp #129)
> [ 1114.110395] EIP is at my_open+0xa6/0x124 [test_rodata]
> [ 1114.125711] eax: c3a00000   ebx: 0001700e   ecx: c39e4000   edx: 00000000
> [ 1114.145953] esi: 36f1700e   edi: f885e000   ebp: c39e5ebc   esp: c39e5ea0
> [ 1114.166195] ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
> [ 1114.183583] Process cat (pid: 4112, ti=c39e4000 task=c38ac1b0 task.ti=c39e4000)
> [ 1114.204862] Stack: f885e223 0001700e 00000000 0000f000 c31d3480 00000000 f885e000 c39e5ed8 
> [ 1114.229843]        c01a3c2a c39d2540 c368d4a8 c39d2540 00000000 c368d4a8 c39e5ef8 c016f5d9 
> [ 1114.254830]        c1c0eec0 c378ccfc c39e5eec c39d2540 00008000 c39e5f1c c39e5f0c c016f76b 
> [ 1114.279814] Call Trace:
> [ 1114.287620]  [<c01a3c2a>] proc_reg_open+0x42/0x68
> [ 1114.301655]  [<c016f5d9>] __dentry_open+0xe6/0x1e2
> [ 1114.315944]  [<c016f76b>] nameidata_to_filp+0x35/0x3f
> [ 1114.331008]  [<c016f7b0>] do_filp_open+0x3b/0x43
> [ 1114.344777]  [<c016f7fb>] do_sys_open+0x43/0x116
> [ 1114.358545]  [<c016f906>] sys_open+0x1c/0x1e
> [ 1114.371274]  [<c0104128>] syscall_call+0x7/0xb
> [ 1114.384524]  [<ffffe410>] 0xffffe410
> [ 1114.395178]  =======================
> [ 1114.405823] INFO: lockdep is turned off.
> [ 1114.417504] Code: 60 df 7c c0 b9 63 01 00 00 ba 01 00 00 00 e8 3f 7d 8b c7 0f ae f0 89 f6 e8 5c 80 8b c7 0f ae f0 89 f6 a1 88 eb 85 f8 0f b6 55 f0 <88> 14 03 0f ae f0 89 f6 89 d8 03 05 88 eb 85 f8 05 00 00 00 40 
> [ 1114.474329] EIP: [<f885e0a6>] my_open+0xa6/0x124 [test_rodata] SS:ESP 0068:c39e5ea0
> [ 1114.497187] BUG: sleeping function called from invalid context at kernel/rwsem.c:20
> [ 1114.520025] in_atomic():0, irqs_disabled():1
> [ 1114.532744] INFO: lockdep is turned off.
> [ 1114.544427] irq event stamp: 1894
> [ 1114.554293] hardirqs last  enabled at (1893): [<c03c892b>] _spin_unlock_irq+0x22/0x4e
> [ 1114.577666] hardirqs last disabled at (1894): [<c03c8584>] _spin_lock_irqsave+0x25/0x61
> [ 1114.601556] softirqs last  enabled at (1886): [<c0122988>] __do_softirq+0xe1/0x184
> [ 1114.624149] softirqs last disabled at (1875): [<c0122a9d>] do_softirq+0x72/0x77
> [ 1114.645969]  [<c01051bc>] dump_trace+0x1d5/0x204
> [ 1114.659737]  [<c0105205>] show_trace_log_lvl+0x1a/0x30
> [ 1114.675060]  [<c0105fc2>] show_trace+0x12/0x14
> [ 1114.688308]  [<c0105fd9>] dump_stack+0x15/0x17
> [ 1114.701557]  [<c0118dbf>] __might_sleep+0xcf/0xe1
> [ 1114.715584]  [<c013273c>] down_read+0x18/0x4b
> [ 1114.728574]  [<c011f4a0>] exit_mm+0x27/0xd1
> [ 1114.741045]  [<c0120bc1>] do_exit+0x10f/0x88f
> [ 1114.754035]  [<c01058ef>] do_trap+0x0/0x152
> [ 1114.766503]  [<c0115553>] do_page_fault+0x310/0x7ed
> [ 1114.781050]  [<c03c8bda>] error_code+0x6a/0x70
> [ 1114.794303]  [<f885e0a6>] my_open+0xa6/0x124 [test_rodata]
> [ 1114.810665]  [<c01a3c2a>] proc_reg_open+0x42/0x68
> [ 1114.824692]  [<c016f5d9>] __dentry_open+0xe6/0x1e2
> [ 1114.838979]  [<c016f76b>] nameidata_to_filp+0x35/0x3f
> [ 1114.854044]  [<c016f7b0>] do_filp_open+0x3b/0x43
> [ 1114.867811]  [<c016f7fb>] do_sys_open+0x43/0x116
> [ 1114.881579]  [<c016f906>] sys_open+0x1c/0x1e
> [ 1114.894308]  [<c0104128>] syscall_call+0x7/0xb
> [ 1114.907557]  [<ffffe410>] 0xffffe410
> [ 1114.918212]  =======================
> 
> This is clearly the memory write I am trying to do in the page of
> which I just changed the attributes to RWX.
> 
> If I remove the variable read before I change the flags, it starts
> working correctly (as far as I have tested...).
> 
> If I use my own my_local_tlb_flush() function (not SMP aware) instead of
> global_flush_tlb(), it works correctly.
> 
> I also tried just calling clflush on the modified page just after the
> global_flush_tlb(), and the problem was still there.
> 
> I therefore suspect that
> 
> include/asm-i386/tlbflush.h:
> #define __native_flush_tlb_global()                                     \
>         do {                                                            \
>                 unsigned int tmpreg, cr4, cr4_orig;                     \
>                                                                         \
>                 __asm__ __volatile__(                                   \
>                         "movl %%cr4, %2;  # turn off PGE     \n"        \
>                         "movl %2, %1;                        \n"        \
>                         "andl %3, %1;                        \n"        \
>                         "movl %1, %%cr4;                     \n"        \
>                         "movl %%cr3, %0;                     \n"        \
>                         "movl %0, %%cr3;  # flush TLB        \n"        \
>                         "movl %2, %%cr4;  # turn PGE back on \n"        \
>                         : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \
>                         : "i" (~X86_CR4_PGE)                            \
>                         : "memory");                                    \
>         } while (0)
> 
> is not doing its job correctly. The problem does not seem to be caused
> by PARAVIRT, because it is still buggy even if I disable the PARAVIRT
> config option.
> 
> This is as far as I went digging into this. Is "movl %0, %%cr3;  # flush
> TLB" really flushing the local TLB ? Should invlpg be used instead ?
> 
> If you have some advice, it would be welcome,
> 
> Thanks,
> 
> Mathieu
> 
> ---- BEGIN ---
> /*
>  * test-rodata.c
>  *
>  */
> 
> #include <linux/marker.h>
> #include <linux/module.h>
> #include <linux/proc_fs.h>
> #include <linux/sched.h>
> #include <linux/slab.h>
> #include <asm/timex.h>
> #include <asm/ptrace.h>
> #include <asm/cacheflush.h>
> #include <asm/tlbflush.h>
> 
> #define NR_LOOPS 5
> #define ASIZE (1024*1024)
> 
> volatile char value;
> char *array;
> 
> struct proc_dir_entry *pentry = NULL;
> 
> /*
>  * Flush local TLB with invlpg and cache for one address on P4 */
> static void my_local_tlb_flush(void *address)
> {
> 	mb();
> 	__native_flush_tlb_single(address);
> 	mb();
> 	asm volatile("clflush (%0)" :: "r" (address));
> 	mb();
> }
> 
> static int my_open(struct inode *inode, struct file *file)
> {
> 	unsigned int i,j;
> 
> 	for(i=0; i<NR_LOOPS; i++) {
> 		printk("Loop %u\n", i);
> 		for(j=0; j<ASIZE; j+=4096) {
> 			/* "random" offset */
> 			unsigned int offset = get_cycles() % ASIZE;
> 			/* preload in cache by reading */
> 			value = array[offset];
> 			/* Setting page for writing */
> 			printk("Attr RWX %u\n", offset);
> 			mb();
> 			change_page_attr(virt_to_page(&array[offset]), 1,
> 			__pgprot((_PAGE_KERNEL_EXEC | _PAGE_GLOBAL) | _PAGE_RW));
> 			mb();
> 			global_flush_tlb();
> 			mb();
> 			//FIX the issue my_local_tlb_flush(&array[offset]);
> 
> 			/* memory write */
> 			array[offset] = (char)j;
> 
> 			/* Setting the page read-only */
> 			mb();
> 			change_page_attr(virt_to_page(&array[offset]), 1,
> 			__pgprot((_PAGE_KERNEL_EXEC & ~_PAGE_RW) | _PAGE_GLOBAL));
> 			//FIX the issue my_local_tlb_flush(&array[offset]);
> 			mb();
> 			global_flush_tlb();
> 			mb();
> 			printk("Attr RX %u\n", offset);
> 		}
> 	}
> 
> 	return -EPERM;
> }
> 
> 
> static struct file_operations my_operations = {
> 	.open = my_open,
> };
> 
> int init_module(void)
> {
> 	pentry = create_proc_entry("testrodata", 0444, NULL);
> 	if (pentry)
> 		pentry->proc_fops = &my_operations;
> 	array = kzalloc(ASIZE, GFP_KERNEL);
> 	printk("Init Attr RX\n");
> 	change_page_attr(virt_to_page(array), ASIZE/4096,
> 	__pgprot((_PAGE_KERNEL_EXEC & ~_PAGE_RW) | _PAGE_GLOBAL));
> 	global_flush_tlb();
> 	printk("Init Attr RX end\n");
> 
> 
> 	return 0;
> }
> 
> void cleanup_module(void)
> {
> 	printk("Exit Attr RWX\n");
> 	change_page_attr(virt_to_page(array), ASIZE/4096,
> 	__pgprot((_PAGE_KERNEL) | _PAGE_GLOBAL));
> 	global_flush_tlb();
> 	printk("Exit Attr RWX end\n");
> 
> 	kfree(array);
> 	remove_proc_entry("testrodata", NULL);
> }
> 
> MODULE_LICENSE("GPL");
> MODULE_AUTHOR("Mathieu Desnoyers");
> MODULE_DESCRIPTION("rodata test");
> --- END ---
> 
> Complete .config :
> 
> #
> # Automatically generated make config: don't edit
> # Linux kernel version: 2.6.22-rc4-mm2
> # Tue Jun 19 09:50:24 2007
> #
> CONFIG_X86_32=y
> CONFIG_GENERIC_TIME=y
> CONFIG_CLOCKSOURCE_WATCHDOG=y
> CONFIG_GENERIC_CLOCKEVENTS=y
> CONFIG_LOCKDEP_SUPPORT=y
> CONFIG_STACKTRACE_SUPPORT=y
> CONFIG_SEMAPHORE_SLEEPERS=y
> CONFIG_X86=y
> CONFIG_MMU=y
> CONFIG_ZONE_DMA=y
> CONFIG_QUICKLIST=y
> CONFIG_GENERIC_ISA_DMA=y
> CONFIG_GENERIC_IOMAP=y
> CONFIG_GENERIC_BUG=y
> CONFIG_GENERIC_HWEIGHT=y
> CONFIG_ARCH_MAY_HAVE_PC_FDC=y
> CONFIG_DMI=y
> CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
> 
> #
> # Code maturity level options
> #
> CONFIG_EXPERIMENTAL=y
> CONFIG_BROKEN_ON_SMP=y
> CONFIG_LOCK_KERNEL=y
> CONFIG_INIT_ENV_ARG_LIMIT=32
> 
> #
> # General setup
> #
> CONFIG_LOCALVERSION="-testssmp"
> # CONFIG_LOCALVERSION_AUTO is not set
> CONFIG_SWAP=y
> CONFIG_SWAP_PREFETCH=y
> CONFIG_SYSVIPC=y
> # CONFIG_IPC_NS is not set
> CONFIG_SYSVIPC_SYSCTL=y
> CONFIG_POSIX_MQUEUE=y
> # CONFIG_BSD_PROCESS_ACCT is not set
> # CONFIG_TASKSTATS is not set
> # CONFIG_UTS_NS is not set
> CONFIG_AUDIT=y
> CONFIG_AUDITSYSCALL=y
> # CONFIG_IKCONFIG is not set
> CONFIG_LOG_BUF_SHIFT=17
> # CONFIG_CONTAINER_DEBUG is not set
> CONFIG_SYSFS_DEPRECATED=y
> # CONFIG_CONTAINER_CPUACCT is not set
> CONFIG_RELAY=y
> # CONFIG_BLK_DEV_INITRD is not set
> # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
> CONFIG_SYSCTL=y
> CONFIG_EMBEDDED=y
> CONFIG_UID16=y
> CONFIG_SYSCTL_SYSCALL=y
> CONFIG_KALLSYMS=y
> CONFIG_KALLSYMS_ALL=y
> # CONFIG_KALLSYMS_EXTRA_PASS is not set
> CONFIG_HOTPLUG=y
> CONFIG_PRINTK=y
> CONFIG_BUG=y
> CONFIG_ELF_CORE=y
> CONFIG_BASE_FULL=y
> CONFIG_FUTEX=y
> CONFIG_ANON_INODES=y
> CONFIG_EPOLL=y
> CONFIG_SIGNALFD=y
> CONFIG_TIMERFD=y
> CONFIG_EVENTFD=y
> CONFIG_SHMEM=y
> CONFIG_VM_EVENT_COUNTERS=y
> CONFIG_SLAB=y
> # CONFIG_SLUB is not set
> # CONFIG_SLOB is not set
> CONFIG_PROC_SMAPS=y
> CONFIG_PROC_CLEAR_REFS=y
> CONFIG_PROC_PAGEMAP=y
> CONFIG_PROC_KPAGEMAP=y
> CONFIG_RT_MUTEXES=y
> # CONFIG_TINY_SHMEM is not set
> CONFIG_BASE_SMALL=0
> CONFIG_MODULES=y
> CONFIG_MODULE_UNLOAD=y
> # CONFIG_MODULE_FORCE_UNLOAD is not set
> # CONFIG_MODVERSIONS is not set
> # CONFIG_MODULE_SRCVERSION_ALL is not set
> CONFIG_KMOD=y
> CONFIG_BLOCK=y
> CONFIG_LBD=y
> # CONFIG_BLK_DEV_IO_TRACE is not set
> CONFIG_LSF=y
> 
> #
> # IO Schedulers
> #
> CONFIG_IOSCHED_NOOP=y
> CONFIG_IOSCHED_AS=y
> CONFIG_IOSCHED_DEADLINE=y
> CONFIG_IOSCHED_CFQ=y
> CONFIG_DEFAULT_AS=y
> # CONFIG_DEFAULT_DEADLINE is not set
> # CONFIG_DEFAULT_CFQ is not set
> # CONFIG_DEFAULT_NOOP is not set
> CONFIG_DEFAULT_IOSCHED="anticipatory"
> 
> #
> # Processor type and features
> #
> # CONFIG_TICK_ONESHOT is not set
> # CONFIG_NO_HZ is not set
> # CONFIG_HIGH_RES_TIMERS is not set
> # CONFIG_SMP is not set
> CONFIG_X86_PC=y
> # CONFIG_X86_ELAN is not set
> # CONFIG_X86_VOYAGER is not set
> # CONFIG_X86_NUMAQ is not set
> # CONFIG_X86_SUMMIT is not set
> # CONFIG_X86_BIGSMP is not set
> # CONFIG_X86_VISWS is not set
> # CONFIG_X86_GENERICARCH is not set
> # CONFIG_X86_ES7000 is not set
> CONFIG_PARAVIRT=y
> # CONFIG_XEN is not set
> # CONFIG_VMI is not set
> # CONFIG_M386 is not set
> # CONFIG_M486 is not set
> # CONFIG_M586 is not set
> # CONFIG_M586TSC is not set
> # CONFIG_M586MMX is not set
> # CONFIG_M686 is not set
> # CONFIG_MPENTIUMII is not set
> # CONFIG_MPENTIUMIII is not set
> # CONFIG_MPENTIUMM is not set
> # CONFIG_MCORE2 is not set
> CONFIG_MPENTIUM4=y
> # CONFIG_MK6 is not set
> # CONFIG_MK7 is not set
> # CONFIG_MK8 is not set
> # CONFIG_MCRUSOE is not set
> # CONFIG_MEFFICEON is not set
> # CONFIG_MWINCHIPC6 is not set
> # CONFIG_MWINCHIP2 is not set
> # CONFIG_MWINCHIP3D is not set
> # CONFIG_MGEODEGX1 is not set
> # CONFIG_MGEODE_LX is not set
> # CONFIG_MCYRIXIII is not set
> # CONFIG_MVIAC3_2 is not set
> # CONFIG_MVIAC7 is not set
> # CONFIG_X86_GENERIC is not set
> CONFIG_X86_CMPXCHG=y
> CONFIG_X86_L1_CACHE_SHIFT=7
> CONFIG_X86_XADD=y
> CONFIG_RWSEM_XCHGADD_ALGORITHM=y
> # CONFIG_ARCH_HAS_ILOG2_U32 is not set
> # CONFIG_ARCH_HAS_ILOG2_U64 is not set
> CONFIG_GENERIC_CALIBRATE_DELAY=y
> CONFIG_X86_WP_WORKS_OK=y
> CONFIG_X86_INVLPG=y
> CONFIG_X86_BSWAP=y
> CONFIG_X86_POPAD_OK=y
> CONFIG_X86_CMPXCHG64=y
> CONFIG_X86_GOOD_APIC=y
> CONFIG_X86_INTEL_USERCOPY=y
> CONFIG_X86_USE_PPRO_CHECKSUM=y
> CONFIG_X86_TSC=y
> CONFIG_X86_CMOV=y
> CONFIG_X86_MINIMUM_CPU_MODEL=4
> # CONFIG_HPET_TIMER is not set
> # CONFIG_PREEMPT_NONE is not set
> # CONFIG_PREEMPT_VOLUNTARY is not set
> CONFIG_PREEMPT=y
> CONFIG_PREEMPT_BKL=y
> # CONFIG_X86_UP_APIC is not set
> CONFIG_X86_MCE=y
> CONFIG_X86_MCE_NONFATAL=y
> CONFIG_VM86=y
> # CONFIG_TOSHIBA is not set
> # CONFIG_I8K is not set
> # CONFIG_X86_REBOOTFIXUPS is not set
> # CONFIG_MICROCODE is not set
> # CONFIG_X86_MSR is not set
> # CONFIG_X86_CPUID is not set
> 
> #
> # Firmware Drivers
> #
> # CONFIG_EDD is not set
> # CONFIG_DELL_RBU is not set
> CONFIG_DCDBAS=m
> CONFIG_DMIID=y
> # CONFIG_NOHIGHMEM is not set
> CONFIG_HIGHMEM4G=y
> # CONFIG_HIGHMEM64G is not set
> CONFIG_VMSPLIT_3G=y
> # CONFIG_VMSPLIT_3G_OPT is not set
> # CONFIG_VMSPLIT_2G is not set
> # CONFIG_VMSPLIT_2G_OPT is not set
> # CONFIG_VMSPLIT_1G is not set
> CONFIG_PAGE_OFFSET=0xC0000000
> CONFIG_HIGHMEM=y
> CONFIG_ARCH_FLATMEM_ENABLE=y
> CONFIG_ARCH_SPARSEMEM_ENABLE=y
> CONFIG_ARCH_SELECT_MEMORY_MODEL=y
> CONFIG_ARCH_POPULATES_NODE_MAP=y
> CONFIG_SELECT_MEMORY_MODEL=y
> CONFIG_FLATMEM_MANUAL=y
> # CONFIG_DISCONTIGMEM_MANUAL is not set
> # CONFIG_SPARSEMEM_MANUAL is not set
> CONFIG_FLATMEM=y
> CONFIG_FLAT_NODE_MEM_MAP=y
> CONFIG_SPARSEMEM_STATIC=y
> CONFIG_SPLIT_PTLOCK_CPUS=4
> # CONFIG_RESOURCES_64BIT is not set
> CONFIG_ZONE_DMA_FLAG=1
> CONFIG_BOUNCE=y
> CONFIG_NR_QUICK=1
> CONFIG_VIRT_TO_BUS=y
> # CONFIG_HIGHPTE is not set
> # CONFIG_MATH_EMULATION is not set
> CONFIG_MTRR=y
> # CONFIG_EFI is not set
> CONFIG_SECCOMP=y
> # CONFIG_HZ_100 is not set
> CONFIG_HZ_250=y
> # CONFIG_HZ_300 is not set
> # CONFIG_HZ_1000 is not set
> CONFIG_HZ=250
> CONFIG_KEXEC=y
> # CONFIG_CRASH_DUMP is not set
> CONFIG_PHYSICAL_START=0x100000
> # CONFIG_RELOCATABLE is not set
> CONFIG_PHYSICAL_ALIGN=0x100000
> CONFIG_COMPAT_VDSO=y
> CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
> 
> #
> # Power management options (ACPI, APM)
> #
> CONFIG_PM=y
> # CONFIG_PM_LEGACY is not set
> # CONFIG_PM_DEBUG is not set
> # CONFIG_PM_SYSFS_DEPRECATED is not set
> # CONFIG_SOFTWARE_SUSPEND is not set
> CONFIG_ACPI=y
> CONFIG_ACPI_SLEEP=y
> CONFIG_ACPI_SLEEP_PROC_FS=y
> # CONFIG_ACPI_SLEEP_PROC_SLEEP is not set
> CONFIG_ACPI_PROCFS=y
> CONFIG_ACPI_AC=y
> CONFIG_ACPI_BATTERY=y
> CONFIG_ACPI_BUTTON=y
> CONFIG_ACPI_FAN=y
> # CONFIG_ACPI_DOCK is not set
> CONFIG_ACPI_PROCESSOR=y
> CONFIG_ACPI_THERMAL=y
> # CONFIG_ACPI_ASUS is not set
> # CONFIG_ACPI_TOSHIBA is not set
> CONFIG_ACPI_BLACKLIST_YEAR=0
> # CONFIG_ACPI_DEBUG is not set
> CONFIG_ACPI_EC=y
> CONFIG_ACPI_POWER=y
> CONFIG_ACPI_SYSTEM=y
> CONFIG_X86_PM_TIMER=y
> CONFIG_ACPI_CONTAINER=y
> # CONFIG_ACPI_SBS is not set
> # CONFIG_APM is not set
> 
> #
> # CPU Frequency scaling
> #
> # CONFIG_CPU_FREQ is not set
> 
> #
> # CPU idle PM support
> #
> # CONFIG_CPU_IDLE is not set
> 
> #
> # Bus options (PCI, PCMCIA, EISA, MCA, ISA)
> #
> CONFIG_PCI=y
> # CONFIG_PCI_GOBIOS is not set
> # CONFIG_PCI_GOMMCONFIG is not set
> # CONFIG_PCI_GODIRECT is not set
> CONFIG_PCI_GOANY=y
> CONFIG_PCI_BIOS=y
> CONFIG_PCI_DIRECT=y
> CONFIG_PCI_MMCONFIG=y
> # CONFIG_PCIEPORTBUS is not set
> # CONFIG_ARCH_SUPPORTS_MSI is not set
> # CONFIG_PCI_DEBUG is not set
> CONFIG_ISA_DMA_API=y
> CONFIG_ISA=y
> # CONFIG_EISA is not set
> # CONFIG_MCA is not set
> # CONFIG_SCx200 is not set
> # CONFIG_PCCARD is not set
> # CONFIG_HOTPLUG_PCI is not set
> 
> #
> # Executable file formats
> #
> CONFIG_BINFMT_ELF=y
> CONFIG_BINFMT_AOUT=y
> CONFIG_BINFMT_MISC=y
> 
> #
> # Networking
> #
> CONFIG_NET=y
> 
> #
> # Networking options
> #
> CONFIG_PACKET=y
> # CONFIG_PACKET_MMAP is not set
> CONFIG_UNIX=y
> CONFIG_XFRM=y
> # CONFIG_XFRM_USER is not set
> # CONFIG_XFRM_SUB_POLICY is not set
> # CONFIG_XFRM_MIGRATE is not set
> # CONFIG_NET_KEY is not set
> CONFIG_INET=y
> CONFIG_IP_MULTICAST=y
> # CONFIG_IP_ADVANCED_ROUTER is not set
> CONFIG_IP_FIB_HASH=y
> # CONFIG_IP_PNP is not set
> # CONFIG_NET_IPIP is not set
> # CONFIG_NET_IPGRE is not set
> # CONFIG_IP_MROUTE is not set
> # CONFIG_ARPD is not set
> # CONFIG_SYN_COOKIES is not set
> # CONFIG_INET_AH is not set
> # CONFIG_INET_ESP is not set
> # CONFIG_INET_IPCOMP is not set
> # CONFIG_INET_XFRM_TUNNEL is not set
> # CONFIG_INET_TUNNEL is not set
> CONFIG_INET_XFRM_MODE_TRANSPORT=y
> CONFIG_INET_XFRM_MODE_TUNNEL=y
> CONFIG_INET_XFRM_MODE_BEET=y
> CONFIG_INET_DIAG=m
> CONFIG_INET_TCP_DIAG=m
> # CONFIG_TCP_CONG_ADVANCED is not set
> CONFIG_TCP_CONG_CUBIC=y
> CONFIG_DEFAULT_TCP_CONG="cubic"
> # CONFIG_TCP_MD5SIG is not set
> # CONFIG_IP_VS is not set
> # CONFIG_IPV6 is not set
> # CONFIG_INET6_XFRM_TUNNEL is not set
> # CONFIG_INET6_TUNNEL is not set
> # CONFIG_NETWORK_SECMARK is not set
> CONFIG_NETFILTER=y
> # CONFIG_NETFILTER_DEBUG is not set
> 
> #
> # Core Netfilter Configuration
> #
> CONFIG_NETFILTER_NETLINK=y
> CONFIG_NETFILTER_NETLINK_QUEUE=m
> CONFIG_NETFILTER_NETLINK_LOG=m
> # CONFIG_NF_CONNTRACK_ENABLED is not set
> # CONFIG_NF_CONNTRACK is not set
> # CONFIG_NETFILTER_XTABLES is not set
> 
> #
> # IP: Netfilter Configuration
> #
> CONFIG_IP_NF_QUEUE=y
> # CONFIG_IP_NF_IPTABLES is not set
> # CONFIG_IP_NF_ARPTABLES is not set
> # CONFIG_IP_DCCP is not set
> # CONFIG_IP_SCTP is not set
> # CONFIG_TIPC is not set
> # CONFIG_ATM is not set
> # CONFIG_BRIDGE is not set
> # CONFIG_VLAN_8021Q is not set
> # CONFIG_DECNET is not set
> # CONFIG_LLC2 is not set
> # CONFIG_IPX is not set
> # CONFIG_ATALK is not set
> # CONFIG_X25 is not set
> # CONFIG_LAPB is not set
> # CONFIG_ECONET is not set
> # CONFIG_WAN_ROUTER is not set
> 
> #
> # QoS and/or fair queueing
> #
> # CONFIG_NET_SCHED is not set
> 
> #
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> # CONFIG_HAMRADIO is not set
> # CONFIG_IRDA is not set
> # CONFIG_BT is not set
> # CONFIG_AF_RXRPC is not set
> 
> #
> # Wireless
> #
> # CONFIG_CFG80211 is not set
> # CONFIG_WIRELESS_EXT is not set
> # CONFIG_MAC80211 is not set
> CONFIG_IEEE80211=m
> CONFIG_IEEE80211_DEBUG=y
> CONFIG_IEEE80211_CRYPT_WEP=m
> CONFIG_IEEE80211_CRYPT_CCMP=m
> # CONFIG_IEEE80211_CRYPT_TKIP is not set
> # CONFIG_IEEE80211_SOFTMAC is not set
> # CONFIG_RFKILL is not set
> 
> #
> # Device Drivers
> #
> 
> #
> # Generic Driver Options
> #
> CONFIG_STANDALONE=y
> CONFIG_PREVENT_FIRMWARE_BUILD=y
> CONFIG_FW_LOADER=m
> # CONFIG_DEBUG_DRIVER is not set
> # CONFIG_DEBUG_DEVRES is not set
> # CONFIG_SYS_HYPERVISOR is not set
> CONFIG_CONNECTOR=y
> CONFIG_PROC_EVENTS=y
> # CONFIG_MTD is not set
> CONFIG_PARPORT=y
> CONFIG_PARPORT_PC=y
> # CONFIG_PARPORT_SERIAL is not set
> # CONFIG_PARPORT_PC_FIFO is not set
> # CONFIG_PARPORT_PC_SUPERIO is not set
> # CONFIG_PARPORT_GSC is not set
> # CONFIG_PARPORT_AX88796 is not set
> # CONFIG_PARPORT_1284 is not set
> CONFIG_PNP=y
> # CONFIG_PNP_DEBUG is not set
> 
> #
> # Protocols
> #
> # CONFIG_ISAPNP is not set
> # CONFIG_PNPBIOS is not set
> CONFIG_PNPACPI=y
> CONFIG_BLK_DEV=y
> CONFIG_BLK_DEV_FD=y
> # CONFIG_BLK_DEV_XD is not set
> # CONFIG_PARIDE is not set
> # CONFIG_BLK_CPQ_DA is not set
> # CONFIG_BLK_CPQ_CISS_DA is not set
> # CONFIG_BLK_DEV_DAC960 is not set
> # CONFIG_BLK_DEV_UMEM is not set
> # CONFIG_BLK_DEV_COW_COMMON is not set
> CONFIG_BLK_DEV_LOOP=m
> # CONFIG_BLK_DEV_CRYPTOLOOP is not set
> # CONFIG_BLK_DEV_NBD is not set
> # CONFIG_BLK_DEV_SX8 is not set
> # CONFIG_BLK_DEV_UB is not set
> # CONFIG_BLK_DEV_RAM is not set
> # CONFIG_CDROM_PKTCDVD is not set
> # CONFIG_ATA_OVER_ETH is not set
> CONFIG_MISC_DEVICES=y
> # CONFIG_IBM_ASM is not set
> # CONFIG_PHANTOM is not set
> # CONFIG_SGI_IOC4 is not set
> # CONFIG_TIFM_CORE is not set
> # CONFIG_SONY_LAPTOP is not set
> # CONFIG_THINKPAD_ACPI is not set
> # CONFIG_BLINK is not set
> # CONFIG_EEPROM_93CX6 is not set
> CONFIG_IDE=y
> CONFIG_IDE_MAX_HWIFS=4
> CONFIG_BLK_DEV_IDE=y
> 
> #
> # Please see Documentation/ide.txt for help/info on IDE drives
> #
> # CONFIG_BLK_DEV_IDE_SATA is not set
> # CONFIG_BLK_DEV_HD_IDE is not set
> CONFIG_BLK_DEV_IDEDISK=y
> CONFIG_IDEDISK_MULTI_MODE=y
> CONFIG_BLK_DEV_IDECD=y
> # CONFIG_BLK_DEV_IDETAPE is not set
> # CONFIG_BLK_DEV_IDEFLOPPY is not set
> # CONFIG_BLK_DEV_IDESCSI is not set
> # CONFIG_BLK_DEV_IDEACPI is not set
> # CONFIG_IDE_TASK_IOCTL is not set
> CONFIG_IDE_PROC_FS=y
> 
> #
> # IDE chipset support/bugfixes
> #
> CONFIG_IDE_GENERIC=y
> CONFIG_BLK_DEV_CMD640=y
> # CONFIG_BLK_DEV_CMD640_ENHANCED is not set
> # CONFIG_BLK_DEV_IDEPNP is not set
> CONFIG_BLK_DEV_IDEPCI=y
> CONFIG_IDEPCI_SHARE_IRQ=y
> CONFIG_IDEPCI_PCIBUS_ORDER=y
> # CONFIG_BLK_DEV_OFFBOARD is not set
> CONFIG_BLK_DEV_GENERIC=y
> # CONFIG_BLK_DEV_OPTI621 is not set
> CONFIG_BLK_DEV_RZ1000=y
> CONFIG_BLK_DEV_IDEDMA_PCI=y
> # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
> # CONFIG_IDEDMA_ONLYDISK is not set
> # CONFIG_BLK_DEV_AEC62XX is not set
> # CONFIG_BLK_DEV_ALI15X3 is not set
> # CONFIG_BLK_DEV_AMD74XX is not set
> # CONFIG_BLK_DEV_ATIIXP is not set
> # CONFIG_BLK_DEV_CMD64X is not set
> # CONFIG_BLK_DEV_TRIFLEX is not set
> # CONFIG_BLK_DEV_CY82C693 is not set
> # CONFIG_BLK_DEV_CS5520 is not set
> # CONFIG_BLK_DEV_CS5530 is not set
> # CONFIG_BLK_DEV_CS5535 is not set
> # CONFIG_BLK_DEV_HPT34X is not set
> # CONFIG_BLK_DEV_HPT366 is not set
> # CONFIG_BLK_DEV_JMICRON is not set
> # CONFIG_BLK_DEV_SC1200 is not set
> CONFIG_BLK_DEV_PIIX=y
> # CONFIG_BLK_DEV_IT8213 is not set
> # CONFIG_BLK_DEV_IT821X is not set
> # CONFIG_BLK_DEV_NS87415 is not set
> # CONFIG_BLK_DEV_PDC202XX_OLD is not set
> # CONFIG_BLK_DEV_PDC202XX_NEW is not set
> # CONFIG_BLK_DEV_SVWKS is not set
> # CONFIG_BLK_DEV_SIIMAGE is not set
> # CONFIG_BLK_DEV_SIS5513 is not set
> # CONFIG_BLK_DEV_SLC90E66 is not set
> # CONFIG_BLK_DEV_TRM290 is not set
> # CONFIG_BLK_DEV_VIA82CXXX is not set
> # CONFIG_BLK_DEV_TC86C001 is not set
> # CONFIG_IDE_ARM is not set
> # CONFIG_IDE_CHIPSETS is not set
> CONFIG_BLK_DEV_IDEDMA=y
> # CONFIG_IDEDMA_IVB is not set
> # CONFIG_BLK_DEV_HD is not set
> 
> #
> # SCSI device support
> #
> # CONFIG_RAID_ATTRS is not set
> CONFIG_SCSI=y
> CONFIG_SCSI_DMA=y
> # CONFIG_SCSI_TGT is not set
> # CONFIG_SCSI_NETLINK is not set
> CONFIG_SCSI_PROC_FS=y
> 
> #
> # SCSI support type (disk, tape, CD-ROM)
> #
> CONFIG_BLK_DEV_SD=y
> # CONFIG_CHR_DEV_ST is not set
> # CONFIG_CHR_DEV_OSST is not set
> # CONFIG_BLK_DEV_SR is not set
> CONFIG_CHR_DEV_SG=y
> # CONFIG_CHR_DEV_SCH is not set
> 
> #
> # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
> #
> # CONFIG_SCSI_MULTI_LUN is not set
> # CONFIG_SCSI_CONSTANTS is not set
> # CONFIG_SCSI_LOGGING is not set
> # CONFIG_SCSI_SCAN_ASYNC is not set
> CONFIG_SCSI_WAIT_SCAN=m
> 
> #
> # SCSI Transports
> #
> # CONFIG_SCSI_SPI_ATTRS is not set
> # CONFIG_SCSI_FC_ATTRS is not set
> # CONFIG_SCSI_ISCSI_ATTRS is not set
> # CONFIG_SCSI_SAS_ATTRS is not set
> # CONFIG_SCSI_SAS_LIBSAS is not set
> CONFIG_SCSI_LOWLEVEL=y
> # CONFIG_ISCSI_TCP is not set
> # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
> # CONFIG_SCSI_3W_9XXX is not set
> # CONFIG_SCSI_7000FASST is not set
> # CONFIG_SCSI_ACARD is not set
> # CONFIG_SCSI_AHA152X is not set
> # CONFIG_SCSI_AHA1542 is not set
> # CONFIG_SCSI_AACRAID is not set
> # CONFIG_SCSI_AIC7XXX is not set
> # CONFIG_SCSI_AIC7XXX_OLD is not set
> # CONFIG_SCSI_AIC79XX is not set
> # CONFIG_SCSI_AIC94XX is not set
> CONFIG_SCSI_DPT_I2O=m
> # CONFIG_SCSI_ADVANSYS is not set
> # CONFIG_SCSI_IN2000 is not set
> # CONFIG_SCSI_ARCMSR is not set
> # CONFIG_MEGARAID_NEWGEN is not set
> # CONFIG_MEGARAID_LEGACY is not set
> # CONFIG_MEGARAID_SAS is not set
> # CONFIG_SCSI_HPTIOP is not set
> # CONFIG_SCSI_BUSLOGIC is not set
> # CONFIG_SCSI_DMX3191D is not set
> # CONFIG_SCSI_DTC3280 is not set
> # CONFIG_SCSI_EATA is not set
> # CONFIG_SCSI_FUTURE_DOMAIN is not set
> # CONFIG_SCSI_GDTH is not set
> # CONFIG_SCSI_GENERIC_NCR5380 is not set
> # CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
> # CONFIG_SCSI_IPS is not set
> # CONFIG_SCSI_INITIO is not set
> # CONFIG_SCSI_INIA100 is not set
> # CONFIG_SCSI_PPA is not set
> # CONFIG_SCSI_IMM is not set
> # CONFIG_SCSI_NCR53C406A is not set
> # CONFIG_SCSI_STEX is not set
> # CONFIG_SCSI_SYM53C8XX_2 is not set
> # CONFIG_SCSI_IPR is not set
> # CONFIG_SCSI_PAS16 is not set
> # CONFIG_SCSI_PSI240I is not set
> # CONFIG_SCSI_QLOGIC_FAS is not set
> # CONFIG_SCSI_QLOGIC_1280 is not set
> # CONFIG_SCSI_QLA_FC is not set
> # CONFIG_SCSI_QLA_ISCSI is not set
> # CONFIG_SCSI_LPFC is not set
> # CONFIG_SCSI_SEAGATE is not set
> # CONFIG_SCSI_SYM53C416 is not set
> # CONFIG_SCSI_DC395x is not set
> # CONFIG_SCSI_DC390T is not set
> # CONFIG_SCSI_T128 is not set
> # CONFIG_SCSI_U14_34F is not set
> # CONFIG_SCSI_ULTRASTOR is not set
> # CONFIG_SCSI_NSP32 is not set
> # CONFIG_SCSI_DEBUG is not set
> # CONFIG_SCSI_SRP is not set
> CONFIG_ATA=y
> # CONFIG_ATA_NONSTANDARD is not set
> CONFIG_ATA_ACPI=y
> # CONFIG_SATA_AHCI is not set
> # CONFIG_SATA_SVW is not set
> CONFIG_ATA_PIIX=y
> # CONFIG_SATA_MV is not set
> # CONFIG_SATA_NV is not set
> # CONFIG_PDC_ADMA is not set
> # CONFIG_SATA_QSTOR is not set
> # CONFIG_SATA_PROMISE is not set
> # CONFIG_SATA_SX4 is not set
> # CONFIG_SATA_SIL is not set
> # CONFIG_SATA_SIL24 is not set
> # CONFIG_SATA_SIS is not set
> # CONFIG_SATA_ULI is not set
> # CONFIG_SATA_VIA is not set
> # CONFIG_SATA_VITESSE is not set
> # CONFIG_SATA_INIC162X is not set
> # CONFIG_PATA_ALI is not set
> # CONFIG_PATA_AMD is not set
> # CONFIG_PATA_ARTOP is not set
> # CONFIG_PATA_ATIIXP is not set
> # CONFIG_PATA_CMD640_PCI is not set
> # CONFIG_PATA_CMD64X is not set
> # CONFIG_PATA_CS5520 is not set
> # CONFIG_PATA_CS5530 is not set
> # CONFIG_PATA_CS5535 is not set
> # CONFIG_PATA_CYPRESS is not set
> # CONFIG_PATA_EFAR is not set
> # CONFIG_ATA_GENERIC is not set
> # CONFIG_PATA_HPT366 is not set
> # CONFIG_PATA_HPT37X is not set
> # CONFIG_PATA_HPT3X2N is not set
> # CONFIG_PATA_HPT3X3 is not set
> # CONFIG_PATA_IT821X is not set
> # CONFIG_PATA_IT8213 is not set
> # CONFIG_PATA_JMICRON is not set
> # CONFIG_PATA_LEGACY is not set
> # CONFIG_PATA_TRIFLEX is not set
> # CONFIG_PATA_MARVELL is not set
> # CONFIG_PATA_MPIIX is not set
> # CONFIG_PATA_OLDPIIX is not set
> # CONFIG_PATA_NETCELL is not set
> # CONFIG_PATA_NS87410 is not set
> # CONFIG_PATA_OPTI is not set
> # CONFIG_PATA_OPTIDMA is not set
> # CONFIG_PATA_PDC_OLD is not set
> # CONFIG_PATA_QDI is not set
> # CONFIG_PATA_RADISYS is not set
> # CONFIG_PATA_RZ1000 is not set
> # CONFIG_PATA_SC1200 is not set
> # CONFIG_PATA_SERVERWORKS is not set
> # CONFIG_PATA_PDC2027X is not set
> # CONFIG_PATA_SIL680 is not set
> # CONFIG_PATA_SIS is not set
> # CONFIG_PATA_VIA is not set
> # CONFIG_PATA_WINBOND is not set
> # CONFIG_PATA_WINBOND_VLB is not set
> # CONFIG_PATA_PLATFORM is not set
> # CONFIG_CD_NO_IDESCSI is not set
> # CONFIG_MD is not set
> 
> #
> # Fusion MPT device support
> #
> # CONFIG_FUSION is not set
> # CONFIG_FUSION_SPI is not set
> # CONFIG_FUSION_FC is not set
> # CONFIG_FUSION_SAS is not set
> 
> #
> # IEEE 1394 (FireWire) support
> #
> # CONFIG_FIREWIRE is not set
> CONFIG_IEEE1394=y
> 
> #
> # Subsystem Options
> #
> # CONFIG_IEEE1394_VERBOSEDEBUG is not set
> 
> #
> # Controllers
> #
> 
> #
> # Texas Instruments PCILynx requires I2C
> #
> CONFIG_IEEE1394_OHCI1394=y
> 
> #
> # Protocols
> #
> # CONFIG_IEEE1394_VIDEO1394 is not set
> # CONFIG_IEEE1394_SBP2 is not set
> # CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
> # CONFIG_IEEE1394_ETH1394 is not set
> # CONFIG_IEEE1394_DV1394 is not set
> CONFIG_IEEE1394_RAWIO=y
> # CONFIG_I2O is not set
> CONFIG_MACINTOSH_DRIVERS=y
> # CONFIG_MAC_EMUMOUSEBTN is not set
> CONFIG_NETDEVICES=y
> CONFIG_DUMMY=m
> # CONFIG_BONDING is not set
> # CONFIG_EQUALIZER is not set
> CONFIG_TUN=m
> # CONFIG_NET_SB1000 is not set
> # CONFIG_ARCNET is not set
> # CONFIG_PHYLIB is not set
> CONFIG_NET_ETHERNET=y
> CONFIG_MII=y
> # CONFIG_HAPPYMEAL is not set
> # CONFIG_SUNGEM is not set
> # CONFIG_CASSINI is not set
> # CONFIG_NET_VENDOR_3COM is not set
> # CONFIG_LANCE is not set
> # CONFIG_NET_VENDOR_SMC is not set
> # CONFIG_NET_VENDOR_RACAL is not set
> # CONFIG_NET_TULIP is not set
> # CONFIG_AT1700 is not set
> # CONFIG_DEPCA is not set
> # CONFIG_HP100 is not set
> # CONFIG_NET_ISA is not set
> CONFIG_NET_PCI=y
> # CONFIG_PCNET32 is not set
> # CONFIG_AMD8111_ETH is not set
> # CONFIG_ADAPTEC_STARFIRE is not set
> # CONFIG_AC3200 is not set
> # CONFIG_APRICOT is not set
> # CONFIG_B44 is not set
> # CONFIG_FORCEDETH is not set
> # CONFIG_CS89x0 is not set
> # CONFIG_DGRS is not set
> # CONFIG_EEPRO100 is not set
> # CONFIG_E100 is not set
> # CONFIG_FEALNX is not set
> # CONFIG_NATSEMI is not set
> # CONFIG_NE2K_PCI is not set
> # CONFIG_8139CP is not set
> CONFIG_8139TOO=y
> CONFIG_8139TOO_PIO=y
> # CONFIG_8139TOO_TUNE_TWISTER is not set
> # CONFIG_8139TOO_8129 is not set
> # CONFIG_8139_OLD_RX_RESET is not set
> # CONFIG_SIS900 is not set
> # CONFIG_EPIC100 is not set
> # CONFIG_SUNDANCE is not set
> # CONFIG_TLAN is not set
> # CONFIG_VIA_RHINE is not set
> # CONFIG_SC92031 is not set
> # CONFIG_NET_POCKET is not set
> CONFIG_NETDEV_1000=y
> # CONFIG_ACENIC is not set
> # CONFIG_DL2K is not set
> # CONFIG_E1000 is not set
> # CONFIG_NS83820 is not set
> # CONFIG_HAMACHI is not set
> # CONFIG_YELLOWFIN is not set
> # CONFIG_R8169 is not set
> # CONFIG_SIS190 is not set
> CONFIG_SKGE=m
> CONFIG_SKY2=m
> # CONFIG_SK98LIN is not set
> # CONFIG_VIA_VELOCITY is not set
> # CONFIG_TIGON3 is not set
> # CONFIG_BNX2 is not set
> # CONFIG_QLA3XXX is not set
> # CONFIG_ATL1 is not set
> CONFIG_NETDEV_10000=y
> # CONFIG_CHELSIO_T1 is not set
> # CONFIG_CHELSIO_T3 is not set
> # CONFIG_IXGB is not set
> CONFIG_S2IO=m
> # CONFIG_S2IO_NAPI is not set
> # CONFIG_MYRI10GE is not set
> # CONFIG_NETXEN_NIC is not set
> # CONFIG_MLX4_CORE is not set
> # CONFIG_TR is not set
> 
> #
> # Wireless LAN
> #
> # CONFIG_WLAN_PRE80211 is not set
> # CONFIG_WLAN_80211 is not set
> # CONFIG_RTL818X is not set
> 
> #
> # USB Network Adapters
> #
> # CONFIG_USB_CATC is not set
> # CONFIG_USB_KAWETH is not set
> # CONFIG_USB_PEGASUS is not set
> # CONFIG_USB_RTL8150 is not set
> # CONFIG_USB_USBNET_MII is not set
> # CONFIG_USB_USBNET is not set
> # CONFIG_WAN is not set
> # CONFIG_FDDI is not set
> # CONFIG_HIPPI is not set
> # CONFIG_PLIP is not set
> # CONFIG_PPP is not set
> # CONFIG_SLIP is not set
> # CONFIG_NET_FC is not set
> # CONFIG_SHAPER is not set
> # CONFIG_NETCONSOLE is not set
> # CONFIG_NETPOLL is not set
> # CONFIG_NET_POLL_CONTROLLER is not set
> # CONFIG_ISDN is not set
> # CONFIG_PHONE is not set
> 
> #
> # Input device support
> #
> CONFIG_INPUT=y
> # CONFIG_INPUT_FF_MEMLESS is not set
> 
> #
> # Userland interfaces
> #
> CONFIG_INPUT_MOUSEDEV=y
> CONFIG_INPUT_MOUSEDEV_PSAUX=y
> CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
> CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> # CONFIG_INPUT_JOYDEV is not set
> # CONFIG_INPUT_TSDEV is not set
> # CONFIG_INPUT_EVDEV is not set
> # CONFIG_INPUT_EVBUG is not set
> 
> #
> # Input Device Drivers
> #
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> # CONFIG_KEYBOARD_SUNKBD is not set
> # CONFIG_KEYBOARD_LKKBD is not set
> # CONFIG_KEYBOARD_XTKBD is not set
> # CONFIG_KEYBOARD_NEWTON is not set
> # CONFIG_KEYBOARD_STOWAWAY is not set
> CONFIG_INPUT_MOUSE=y
> CONFIG_MOUSE_PS2=y
> CONFIG_MOUSE_PS2_ALPS=y
> CONFIG_MOUSE_PS2_LOGIPS2PP=y
> CONFIG_MOUSE_PS2_SYNAPTICS=y
> CONFIG_MOUSE_PS2_LIFEBOOK=y
> CONFIG_MOUSE_PS2_TRACKPOINT=y
> # CONFIG_MOUSE_PS2_TOUCHKIT is not set
> # CONFIG_MOUSE_SERIAL is not set
> # CONFIG_MOUSE_APPLETOUCH is not set
> # CONFIG_MOUSE_INPORT is not set
> # CONFIG_MOUSE_LOGIBM is not set
> # CONFIG_MOUSE_PC110PAD is not set
> # CONFIG_MOUSE_VSXXXAA is not set
> # CONFIG_INPUT_JOYSTICK is not set
> # CONFIG_INPUT_TABLET is not set
> # CONFIG_INPUT_TOUCHSCREEN is not set
> # CONFIG_INPUT_MISC is not set
> 
> #
> # Hardware I/O ports
> #
> CONFIG_SERIO=y
> CONFIG_SERIO_I8042=y
> # CONFIG_SERIO_SERPORT is not set
> # CONFIG_SERIO_CT82C710 is not set
> # CONFIG_SERIO_PARKBD is not set
> # CONFIG_SERIO_PCIPS2 is not set
> CONFIG_SERIO_LIBPS2=y
> # CONFIG_SERIO_RAW is not set
> # CONFIG_GAMEPORT is not set
> 
> #
> # Character devices
> #
> CONFIG_VT=y
> CONFIG_VT_CONSOLE=y
> CONFIG_HW_CONSOLE=y
> # CONFIG_VT_HW_CONSOLE_BINDING is not set
> # CONFIG_SERIAL_NONSTANDARD is not set
> # CONFIG_NOZOMI is not set
> 
> #
> # Serial drivers
> #
> CONFIG_SERIAL_8250=y
> CONFIG_SERIAL_8250_CONSOLE=y
> CONFIG_FIX_EARLYCON_MEM=y
> CONFIG_SERIAL_8250_PCI=y
> CONFIG_SERIAL_8250_PNP=y
> CONFIG_SERIAL_8250_NR_UARTS=4
> CONFIG_SERIAL_8250_RUNTIME_UARTS=4
> # CONFIG_SERIAL_8250_EXTENDED is not set
> 
> #
> # Non-8250 serial port support
> #
> CONFIG_SERIAL_CORE=y
> CONFIG_SERIAL_CORE_CONSOLE=y
> # CONFIG_SERIAL_JSM is not set
> CONFIG_UNIX98_PTYS=y
> CONFIG_LEGACY_PTYS=y
> CONFIG_LEGACY_PTY_COUNT=256
> CONFIG_PRINTER=y
> # CONFIG_LP_CONSOLE is not set
> # CONFIG_PPDEV is not set
> # CONFIG_TIPAR is not set
> # CONFIG_IPMI_HANDLER is not set
> # CONFIG_WATCHDOG is not set
> # CONFIG_HW_RANDOM is not set
> # CONFIG_NVRAM is not set
> CONFIG_RTC=m
> # CONFIG_GEN_RTC is not set
> # CONFIG_DTLK is not set
> # CONFIG_R3964 is not set
> # CONFIG_APPLICOM is not set
> # CONFIG_SONYPI is not set
> CONFIG_AGP=y
> # CONFIG_AGP_ALI is not set
> # CONFIG_AGP_ATI is not set
> # CONFIG_AGP_AMD is not set
> # CONFIG_AGP_AMD64 is not set
> CONFIG_AGP_INTEL=y
> # CONFIG_AGP_NVIDIA is not set
> # CONFIG_AGP_SIS is not set
> # CONFIG_AGP_SWORKS is not set
> # CONFIG_AGP_VIA is not set
> # CONFIG_AGP_EFFICEON is not set
> CONFIG_DRM=y
> # CONFIG_DRM_TDFX is not set
> # CONFIG_DRM_R128 is not set
> # CONFIG_DRM_RADEON is not set
> # CONFIG_DRM_I810 is not set
> # CONFIG_DRM_I830 is not set
> # CONFIG_DRM_I915 is not set
> # CONFIG_DRM_MGA is not set
> # CONFIG_DRM_SIS is not set
> # CONFIG_DRM_VIA is not set
> # CONFIG_DRM_SAVAGE is not set
> # CONFIG_MWAVE is not set
> # CONFIG_PC8736x_GPIO is not set
> # CONFIG_NSC_GPIO is not set
> # CONFIG_CS5535_GPIO is not set
> # CONFIG_RAW_DRIVER is not set
> # CONFIG_HPET is not set
> # CONFIG_HANGCHECK_TIMER is not set
> # CONFIG_TCG_TPM is not set
> # CONFIG_TELCLOCK is not set
> CONFIG_DEVPORT=y
> # CONFIG_I2C is not set
> 
> #
> # SPI support
> #
> # CONFIG_SPI is not set
> # CONFIG_SPI_MASTER is not set
> # CONFIG_W1 is not set
> # CONFIG_POWER_SUPPLY is not set
> CONFIG_HWMON=y
> # CONFIG_HWMON_VID is not set
> # CONFIG_SENSORS_ABITUGURU is not set
> # CONFIG_SENSORS_K8TEMP is not set
> # CONFIG_SENSORS_F71805F is not set
> # CONFIG_SENSORS_CORETEMP is not set
> # CONFIG_SENSORS_PC87360 is not set
> # CONFIG_SENSORS_PC87427 is not set
> # CONFIG_SENSORS_SIS5595 is not set
> # CONFIG_SENSORS_SMSC47M1 is not set
> # CONFIG_SENSORS_SMSC47B397 is not set
> # CONFIG_SENSORS_VIA686A is not set
> # CONFIG_SENSORS_VT1211 is not set
> # CONFIG_SENSORS_W83627HF is not set
> # CONFIG_SENSORS_HDAPS is not set
> # CONFIG_SENSORS_APPLESMC is not set
> # CONFIG_HWMON_DEBUG_CHIP is not set
> 
> #
> # Sonics Silicon Backplane
> #
> # CONFIG_SSB is not set
> 
> #
> # Multifunction device drivers
> #
> # CONFIG_MFD_SM501 is not set
> 
> #
> # Multimedia devices
> #
> # CONFIG_VIDEO_DEV is not set
> # CONFIG_DVB_CORE is not set
> CONFIG_DAB=y
> # CONFIG_USB_DABUSB is not set
> 
> #
> # Graphics support
> #
> # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
> 
> #
> # Display device support
> #
> # CONFIG_DISPLAY_SUPPORT is not set
> # CONFIG_VGASTATE is not set
> CONFIG_VIDEO_OUTPUT_CONTROL=m
> # CONFIG_FB is not set
> 
> #
> # Console display driver support
> #
> CONFIG_VGA_CONSOLE=y
> # CONFIG_VGACON_SOFT_SCROLLBACK is not set
> # CONFIG_VIDEO_SELECT is not set
> # CONFIG_MDA_CONSOLE is not set
> CONFIG_DUMMY_CONSOLE=y
> 
> #
> # Sound
> #
> CONFIG_SOUND=y
> 
> #
> # Advanced Linux Sound Architecture
> #
> CONFIG_SND=y
> CONFIG_SND_TIMER=y
> CONFIG_SND_PCM=y
> CONFIG_SND_SEQUENCER=y
> # CONFIG_SND_SEQ_DUMMY is not set
> CONFIG_SND_OSSEMUL=y
> CONFIG_SND_MIXER_OSS=y
> CONFIG_SND_PCM_OSS=y
> CONFIG_SND_PCM_OSS_PLUGINS=y
> CONFIG_SND_SEQUENCER_OSS=y
> # CONFIG_SND_RTCTIMER is not set
> # CONFIG_SND_DYNAMIC_MINORS is not set
> CONFIG_SND_SUPPORT_OLD_API=y
> CONFIG_SND_VERBOSE_PROCFS=y
> # CONFIG_SND_VERBOSE_PRINTK is not set
> # CONFIG_SND_DEBUG is not set
> 
> #
> # Generic devices
> #
> CONFIG_SND_AC97_CODEC=y
> # CONFIG_SND_DUMMY is not set
> # CONFIG_SND_VIRMIDI is not set
> # CONFIG_SND_MTPAV is not set
> # CONFIG_SND_MTS64 is not set
> # CONFIG_SND_SERIAL_U16550 is not set
> # CONFIG_SND_MPU401 is not set
> # CONFIG_SND_PORTMAN2X4 is not set
> 
> #
> # ISA devices
> #
> # CONFIG_SND_ADLIB is not set
> # CONFIG_SND_AD1816A is not set
> # CONFIG_SND_AD1848 is not set
> # CONFIG_SND_ALS100 is not set
> # CONFIG_SND_AZT2320 is not set
> # CONFIG_SND_CMI8330 is not set
> # CONFIG_SND_CS4231 is not set
> # CONFIG_SND_CS4232 is not set
> # CONFIG_SND_CS4236 is not set
> # CONFIG_SND_DT019X is not set
> # CONFIG_SND_ES968 is not set
> # CONFIG_SND_ES1688 is not set
> # CONFIG_SND_ES18XX is not set
> # CONFIG_SND_GUSCLASSIC is not set
> # CONFIG_SND_GUSEXTREME is not set
> # CONFIG_SND_GUSMAX is not set
> # CONFIG_SND_INTERWAVE is not set
> # CONFIG_SND_INTERWAVE_STB is not set
> # CONFIG_SND_OPL3SA2 is not set
> # CONFIG_SND_OPTI92X_AD1848 is not set
> # CONFIG_SND_OPTI92X_CS4231 is not set
> # CONFIG_SND_OPTI93X is not set
> # CONFIG_SND_MIRO is not set
> # CONFIG_SND_SB8 is not set
> # CONFIG_SND_SB16 is not set
> # CONFIG_SND_SBAWE is not set
> # CONFIG_SND_SGALAXY is not set
> # CONFIG_SND_SSCAPE is not set
> # CONFIG_SND_WAVEFRONT is not set
> 
> #
> # PCI devices
> #
> # CONFIG_SND_AD1889 is not set
> # CONFIG_SND_ALS300 is not set
> # CONFIG_SND_ALS4000 is not set
> # CONFIG_SND_ALI5451 is not set
> # CONFIG_SND_ATIIXP is not set
> # CONFIG_SND_ATIIXP_MODEM is not set
> # CONFIG_SND_AU8810 is not set
> # CONFIG_SND_AU8820 is not set
> # CONFIG_SND_AU8830 is not set
> # CONFIG_SND_AZT3328 is not set
> # CONFIG_SND_BT87X is not set
> # CONFIG_SND_CA0106 is not set
> # CONFIG_SND_CMIPCI is not set
> # CONFIG_SND_CS4281 is not set
> # CONFIG_SND_CS46XX is not set
> # CONFIG_SND_CS5530 is not set
> # CONFIG_SND_CS5535AUDIO is not set
> # CONFIG_SND_DARLA20 is not set
> # CONFIG_SND_GINA20 is not set
> # CONFIG_SND_LAYLA20 is not set
> # CONFIG_SND_DARLA24 is not set
> # CONFIG_SND_GINA24 is not set
> # CONFIG_SND_LAYLA24 is not set
> # CONFIG_SND_MONA is not set
> # CONFIG_SND_MIA is not set
> # CONFIG_SND_ECHO3G is not set
> # CONFIG_SND_INDIGO is not set
> # CONFIG_SND_INDIGOIO is not set
> # CONFIG_SND_INDIGODJ is not set
> # CONFIG_SND_EMU10K1 is not set
> # CONFIG_SND_EMU10K1X is not set
> # CONFIG_SND_ENS1370 is not set
> # CONFIG_SND_ENS1371 is not set
> # CONFIG_SND_ES1938 is not set
> # CONFIG_SND_ES1968 is not set
> # CONFIG_SND_FM801 is not set
> CONFIG_SND_HDA_INTEL=m
> # CONFIG_SND_HDSP is not set
> # CONFIG_SND_HDSPM is not set
> # CONFIG_SND_ICE1712 is not set
> # CONFIG_SND_ICE1724 is not set
> CONFIG_SND_INTEL8X0=y
> # CONFIG_SND_INTEL8X0M is not set
> # CONFIG_SND_KORG1212 is not set
> # CONFIG_SND_MAESTRO3 is not set
> # CONFIG_SND_MIXART is not set
> # CONFIG_SND_NM256 is not set
> # CONFIG_SND_PCXHR is not set
> # CONFIG_SND_RIPTIDE is not set
> # CONFIG_SND_RME32 is not set
> # CONFIG_SND_RME96 is not set
> # CONFIG_SND_RME9652 is not set
> # CONFIG_SND_SONICVIBES is not set
> # CONFIG_SND_TRIDENT is not set
> # CONFIG_SND_VIA82XX is not set
> # CONFIG_SND_VIA82XX_MODEM is not set
> # CONFIG_SND_VX222 is not set
> # CONFIG_SND_YMFPCI is not set
> # CONFIG_SND_AC97_POWER_SAVE is not set
> 
> #
> # USB devices
> #
> # CONFIG_SND_USB_AUDIO is not set
> # CONFIG_SND_USB_USX2Y is not set
> # CONFIG_SND_USB_CAIAQ is not set
> 
> #
> # System on Chip audio support
> #
> # CONFIG_SND_SOC is not set
> 
> #
> # SoC Audio support for SuperH
> #
> 
> #
> # Open Sound System
> #
> # CONFIG_SOUND_PRIME is not set
> CONFIG_AC97_BUS=y
> CONFIG_HID_SUPPORT=y
> CONFIG_HID=y
> # CONFIG_HID_DEBUG is not set
> # CONFIG_HIDRAW is not set
> 
> #
> # USB Input Devices
> #
> CONFIG_USB_HID=y
> # CONFIG_USB_HIDINPUT_POWERBOOK is not set
> # CONFIG_HID_FF is not set
> # CONFIG_USB_HIDDEV is not set
> CONFIG_USB_SUPPORT=y
> CONFIG_USB_ARCH_HAS_HCD=y
> CONFIG_USB_ARCH_HAS_OHCI=y
> CONFIG_USB_ARCH_HAS_EHCI=y
> CONFIG_USB=y
> # CONFIG_USB_DEBUG is not set
> 
> #
> # Miscellaneous USB options
> #
> CONFIG_USB_DEVICEFS=y
> # CONFIG_USB_DEVICE_CLASS is not set
> # CONFIG_USB_DYNAMIC_MINORS is not set
> # CONFIG_USB_SUSPEND is not set
> # CONFIG_USB_PERSIST is not set
> # CONFIG_USB_OTG is not set
> 
> #
> # USB Host Controller Drivers
> #
> CONFIG_USB_EHCI_HCD=y
> # CONFIG_USB_EHCI_SPLIT_ISO is not set
> # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
> # CONFIG_USB_EHCI_TT_NEWSCHED is not set
> # CONFIG_USB_EHCI_FSL is not set
> # CONFIG_USB_ISP116X_HCD is not set
> # CONFIG_USB_OHCI_HCD is not set
> CONFIG_USB_UHCI_HCD=y
> # CONFIG_USB_SL811_HCD is not set
> # CONFIG_USB_R8A66597_HCD is not set
> 
> #
> # USB Device Class drivers
> #
> # CONFIG_USB_ACM is not set
> CONFIG_USB_PRINTER=y
> 
> #
> # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
> #
> 
> #
> # may also be needed; see USB_STORAGE Help for more information
> #
> CONFIG_USB_STORAGE=y
> # CONFIG_USB_STORAGE_DEBUG is not set
> # CONFIG_USB_STORAGE_DATAFAB is not set
> # CONFIG_USB_STORAGE_FREECOM is not set
> # CONFIG_USB_STORAGE_ISD200 is not set
> # CONFIG_USB_STORAGE_DPCM is not set
> # CONFIG_USB_STORAGE_USBAT is not set
> # CONFIG_USB_STORAGE_SDDR09 is not set
> # CONFIG_USB_STORAGE_SDDR55 is not set
> # CONFIG_USB_STORAGE_JUMPSHOT is not set
> # CONFIG_USB_STORAGE_ALAUDA is not set
> # CONFIG_USB_STORAGE_KARMA is not set
> # CONFIG_USB_LIBUSUAL is not set
> 
> #
> # USB Imaging devices
> #
> # CONFIG_USB_MDC800 is not set
> # CONFIG_USB_MICROTEK is not set
> CONFIG_USB_MON=y
> 
> #
> # USB port drivers
> #
> # CONFIG_USB_USS720 is not set
> 
> #
> # USB Serial Converter support
> #
> # CONFIG_USB_SERIAL is not set
> 
> #
> # USB Miscellaneous drivers
> #
> # CONFIG_USB_EMI62 is not set
> # CONFIG_USB_EMI26 is not set
> # CONFIG_USB_ADUTUX is not set
> # CONFIG_USB_AUERSWALD is not set
> # CONFIG_USB_RIO500 is not set
> # CONFIG_USB_LEGOTOWER is not set
> # CONFIG_USB_LCD is not set
> # CONFIG_USB_BERRY_CHARGE is not set
> # CONFIG_USB_LED is not set
> # CONFIG_USB_CYPRESS_CY7C63 is not set
> CONFIG_USB_CYTHERM=m
> # CONFIG_USB_PHIDGET is not set
> # CONFIG_USB_IDMOUSE is not set
> # CONFIG_USB_FTDI_ELAN is not set
> # CONFIG_USB_APPLEDISPLAY is not set
> # CONFIG_USB_SISUSBVGA is not set
> # CONFIG_USB_LD is not set
> # CONFIG_USB_TRANCEVIBRATOR is not set
> # CONFIG_USB_IOWARRIOR is not set
> # CONFIG_USB_TEST is not set
> # CONFIG_USB_GOTEMP is not set
> 
> #
> # USB DSL modem support
> #
> 
> #
> # USB Gadget Support
> #
> # CONFIG_USB_GADGET is not set
> # CONFIG_MMC is not set
> # CONFIG_NEW_LEDS is not set
> # CONFIG_INFINIBAND is not set
> # CONFIG_EDAC is not set
> 
> #
> # Real Time Clock
> #
> CONFIG_RTC_LIB=y
> CONFIG_RTC_CLASS=y
> CONFIG_RTC_HCTOSYS=y
> CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> # CONFIG_RTC_DEBUG is not set
> 
> #
> # RTC interfaces
> #
> CONFIG_RTC_INTF_SYSFS=y
> CONFIG_RTC_INTF_PROC=y
> CONFIG_RTC_INTF_DEV=y
> # CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
> # CONFIG_RTC_DRV_TEST is not set
> 
> #
> # I2C RTC drivers
> #
> 
> #
> # SPI RTC drivers
> #
> 
> #
> # Platform RTC drivers
> #
> # CONFIG_RTC_DRV_CMOS is not set
> # CONFIG_RTC_DRV_DS1553 is not set
> # CONFIG_RTC_DRV_DS1742 is not set
> # CONFIG_RTC_DRV_M48T86 is not set
> # CONFIG_RTC_DRV_V3020 is not set
> 
> #
> # on-CPU RTC drivers
> #
> 
> #
> # DMA Engine support
> #
> # CONFIG_DMA_ENGINE is not set
> 
> #
> # DMA Clients
> #
> 
> #
> # DMA Devices
> #
> CONFIG_AUXDISPLAY=y
> # CONFIG_KS0108 is not set
> CONFIG_VIRTUALIZATION=y
> CONFIG_KVM=m
> CONFIG_KVM_INTEL=m
> CONFIG_KVM_AMD=m
> 
> #
> # Userspace I/O
> #
> # CONFIG_UIO is not set
> # CONFIG_LGUEST is not set
> 
> #
> # File systems
> #
> CONFIG_EXT2_FS=y
> # CONFIG_EXT2_FS_XATTR is not set
> # CONFIG_EXT2_FS_XIP is not set
> CONFIG_EXT3_FS=y
> CONFIG_EXT3_FS_XATTR=y
> # CONFIG_EXT3_FS_POSIX_ACL is not set
> # CONFIG_EXT3_FS_SECURITY is not set
> # CONFIG_EXT4DEV_FS is not set
> CONFIG_JBD=y
> # CONFIG_JBD_DEBUG is not set
> CONFIG_FS_MBCACHE=y
> # CONFIG_REISER4_FS is not set
> # CONFIG_REISERFS_FS is not set
> # CONFIG_JFS_FS is not set
> # CONFIG_FS_POSIX_ACL is not set
> # CONFIG_XFS_FS is not set
> # CONFIG_GFS2_FS is not set
> # CONFIG_OCFS2_FS is not set
> # CONFIG_ROMFS_FS is not set
> CONFIG_INOTIFY=y
> CONFIG_INOTIFY_USER=y
> # CONFIG_QUOTA is not set
> CONFIG_DNOTIFY=y
> # CONFIG_AUTOFS_FS is not set
> CONFIG_AUTOFS4_FS=y
> CONFIG_FUSE_FS=y
> 
> #
> # CD-ROM/DVD Filesystems
> #
> CONFIG_ISO9660_FS=y
> CONFIG_JOLIET=y
> # CONFIG_ZISOFS is not set
> CONFIG_UDF_FS=y
> CONFIG_UDF_NLS=y
> 
> #
> # DOS/FAT/NT Filesystems
> #
> CONFIG_FAT_FS=y
> CONFIG_MSDOS_FS=y
> CONFIG_VFAT_FS=y
> CONFIG_FAT_DEFAULT_CODEPAGE=437
> CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
> # CONFIG_NTFS_FS is not set
> 
> #
> # Pseudo filesystems
> #
> CONFIG_PROC_FS=y
> CONFIG_PROC_KCORE=y
> CONFIG_PROC_SYSCTL=y
> CONFIG_SYSFS=y
> CONFIG_TMPFS=y
> # CONFIG_TMPFS_POSIX_ACL is not set
> # CONFIG_HUGETLBFS is not set
> # CONFIG_HUGETLB_PAGE is not set
> CONFIG_RAMFS=y
> # CONFIG_CONFIGFS_FS is not set
> 
> #
> # Layered filesystems
> #
> # CONFIG_UNION_FS is not set
> 
> #
> # Miscellaneous filesystems
> #
> # CONFIG_HFS_FS is not set
> # CONFIG_HFSPLUS_FS is not set
> # CONFIG_BEFS_FS is not set
> # CONFIG_BFS_FS is not set
> # CONFIG_EFS_FS is not set
> # CONFIG_CRAMFS is not set
> # CONFIG_VXFS_FS is not set
> # CONFIG_HPFS_FS is not set
> # CONFIG_QNX4FS_FS is not set
> 
> #
> # Network File Systems
> #
> CONFIG_NFS_FS=y
> # CONFIG_NFS_V3 is not set
> # CONFIG_NFS_V4 is not set
> # CONFIG_NFS_DIRECTIO is not set
> CONFIG_NFSD=y
> # CONFIG_NFSD_V3 is not set
> CONFIG_NFSD_TCP=y
> CONFIG_LOCKD=y
> CONFIG_EXPORTFS=y
> CONFIG_NFS_COMMON=y
> CONFIG_SUNRPC=y
> # CONFIG_SUNRPC_BIND34 is not set
> # CONFIG_RPCSEC_GSS_KRB5 is not set
> # CONFIG_RPCSEC_GSS_SPKM3 is not set
> # CONFIG_SMB_FS is not set
> # CONFIG_CIFS is not set
> # CONFIG_NCP_FS is not set
> # CONFIG_CODA_FS is not set
> # CONFIG_AFS_FS is not set
> # CONFIG_9P_FS is not set
> 
> #
> # Partition Types
> #
> # CONFIG_PARTITION_ADVANCED is not set
> CONFIG_MSDOS_PARTITION=y
> 
> #
> # Native Language Support
> #
> CONFIG_NLS=y
> CONFIG_NLS_DEFAULT="iso8859-1"
> CONFIG_NLS_CODEPAGE_437=y
> # CONFIG_NLS_CODEPAGE_737 is not set
> # CONFIG_NLS_CODEPAGE_775 is not set
> # CONFIG_NLS_CODEPAGE_850 is not set
> # CONFIG_NLS_CODEPAGE_852 is not set
> # CONFIG_NLS_CODEPAGE_855 is not set
> # CONFIG_NLS_CODEPAGE_857 is not set
> # CONFIG_NLS_CODEPAGE_860 is not set
> # CONFIG_NLS_CODEPAGE_861 is not set
> # CONFIG_NLS_CODEPAGE_862 is not set
> # CONFIG_NLS_CODEPAGE_863 is not set
> # CONFIG_NLS_CODEPAGE_864 is not set
> # CONFIG_NLS_CODEPAGE_865 is not set
> # CONFIG_NLS_CODEPAGE_866 is not set
> # CONFIG_NLS_CODEPAGE_869 is not set
> # CONFIG_NLS_CODEPAGE_936 is not set
> # CONFIG_NLS_CODEPAGE_950 is not set
> # CONFIG_NLS_CODEPAGE_932 is not set
> # CONFIG_NLS_CODEPAGE_949 is not set
> # CONFIG_NLS_CODEPAGE_874 is not set
> # CONFIG_NLS_ISO8859_8 is not set
> # CONFIG_NLS_CODEPAGE_1250 is not set
> # CONFIG_NLS_CODEPAGE_1251 is not set
> # CONFIG_NLS_ASCII is not set
> CONFIG_NLS_ISO8859_1=y
> # CONFIG_NLS_ISO8859_2 is not set
> # CONFIG_NLS_ISO8859_3 is not set
> # CONFIG_NLS_ISO8859_4 is not set
> # CONFIG_NLS_ISO8859_5 is not set
> # CONFIG_NLS_ISO8859_6 is not set
> # CONFIG_NLS_ISO8859_7 is not set
> # CONFIG_NLS_ISO8859_9 is not set
> # CONFIG_NLS_ISO8859_13 is not set
> # CONFIG_NLS_ISO8859_14 is not set
> # CONFIG_NLS_ISO8859_15 is not set
> # CONFIG_NLS_KOI8_R is not set
> # CONFIG_NLS_KOI8_U is not set
> # CONFIG_NLS_UTF8 is not set
> 
> #
> # Distributed Lock Manager
> #
> # CONFIG_DLM is not set
> CONFIG_INSTRUMENTATION=y
> # CONFIG_PROFILING is not set
> # CONFIG_KPROBES is not set
> CONFIG_IMMEDIATE=y
> CONFIG_MARKERS=y
> CONFIG_LTT=y
> CONFIG_LTT_TRACER=y
> CONFIG_LTT_RELAY=y
> CONFIG_LTT_SERIALIZE=y
> CONFIG_LTT_ALIGNMENT=y
> # CONFIG_LTT_HEARTBEAT is not set
> CONFIG_LTT_TEST_TSC=y
> CONFIG_LTT_USERSPACE_GENERIC=y
> CONFIG_LTT_NETLINK_CONTROL=m
> CONFIG_LTT_STATEDUMP=m
> 
> #
> # Probes
> #
> CONFIG_LTT_PROBE_CORE=m
> CONFIG_LTT_PROBE_FS=m
> CONFIG_LTT_PROBE_KERNEL=m
> CONFIG_LTT_PROBE_ARCH=m
> CONFIG_LTT_PROBE_MM=m
> CONFIG_LTT_PROBE_NET=m
> CONFIG_LTT_PROBE_LIST=m
> CONFIG_LTT_PROBE_LOCKING=m
> # CONFIG_LTT_PROBE_STACK is not set
> 
> #
> # Kernel hacking
> #
> CONFIG_TRACE_IRQFLAGS_SUPPORT=y
> CONFIG_PRINTK_TIME=y
> CONFIG_ENABLE_MUST_CHECK=y
> CONFIG_MAGIC_SYSRQ=y
> CONFIG_UNUSED_SYMBOLS=y
> # CONFIG_PAGE_OWNER is not set
> CONFIG_DEBUG_FS=y
> # CONFIG_HEADERS_CHECK is not set
> CONFIG_DEBUG_KERNEL=y
> # CONFIG_DEBUG_SHIRQ is not set
> CONFIG_DETECT_SOFTLOCKUP=y
> # CONFIG_SCHEDSTATS is not set
> # CONFIG_TIMER_STATS is not set
> # CONFIG_DEBUG_SLAB is not set
> CONFIG_DEBUG_PREEMPT=y
> CONFIG_DEBUG_RT_MUTEXES=y
> CONFIG_DEBUG_PI_LIST=y
> # CONFIG_RT_MUTEX_TESTER is not set
> CONFIG_DEBUG_SPINLOCK=y
> CONFIG_DEBUG_MUTEXES=y
> CONFIG_DEBUG_LOCK_ALLOC=y
> CONFIG_PROVE_LOCKING=y
> CONFIG_LOCKDEP=y
> # CONFIG_LOCK_STAT is not set
> CONFIG_DEBUG_LOCKDEP=y
> CONFIG_TRACE_IRQFLAGS=y
> CONFIG_DEBUG_SPINLOCK_SLEEP=y
> # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
> CONFIG_STACKTRACE=y
> # CONFIG_DEBUG_KOBJECT is not set
> CONFIG_DEBUG_HIGHMEM=y
> CONFIG_DEBUG_BUGVERBOSE=y
> CONFIG_DEBUG_INFO=y
> CONFIG_DEBUG_VM=y
> CONFIG_DEBUG_LIST=y
> CONFIG_FRAME_POINTER=y
> CONFIG_UNWIND_INFO=y
> CONFIG_STACK_UNWIND=y
> # CONFIG_PROFILE_LIKELY is not set
> CONFIG_FORCED_INLINING=y
> # CONFIG_DEBUG_SYNCHRO_TEST is not set
> # CONFIG_RCU_TORTURE_TEST is not set
> # CONFIG_FAULT_INJECTION is not set
> CONFIG_EARLY_PRINTK=y
> # CONFIG_DEBUG_STACKOVERFLOW is not set
> # CONFIG_DEBUG_STACK_USAGE is not set
> # CONFIG_DEBUG_PAGEALLOC is not set
> CONFIG_DEBUG_RODATA=y
> # CONFIG_4KSTACKS is not set
> CONFIG_DOUBLEFAULT=y
> 
> #
> # Security options
> #
> # CONFIG_KEYS is not set
> # CONFIG_SECURITY is not set
> # CONFIG_SECURITY_FILE_CAPABILITIES is not set
> CONFIG_CRYPTO=y
> CONFIG_CRYPTO_ALGAPI=m
> CONFIG_CRYPTO_BLKCIPHER=m
> CONFIG_CRYPTO_MANAGER=m
> # CONFIG_CRYPTO_HMAC is not set
> # CONFIG_CRYPTO_XCBC is not set
> # CONFIG_CRYPTO_NULL is not set
> # CONFIG_CRYPTO_MD4 is not set
> # CONFIG_CRYPTO_MD5 is not set
> # CONFIG_CRYPTO_SHA1 is not set
> # CONFIG_CRYPTO_SHA256 is not set
> # CONFIG_CRYPTO_SHA512 is not set
> # CONFIG_CRYPTO_WP512 is not set
> # CONFIG_CRYPTO_TGR192 is not set
> # CONFIG_CRYPTO_GF128MUL is not set
> CONFIG_CRYPTO_ECB=m
> CONFIG_CRYPTO_CBC=m
> CONFIG_CRYPTO_PCBC=m
> # CONFIG_CRYPTO_LRW is not set
> # CONFIG_CRYPTO_CRYPTD is not set
> # CONFIG_CRYPTO_DES is not set
> # CONFIG_CRYPTO_FCRYPT is not set
> # CONFIG_CRYPTO_BLOWFISH is not set
> # CONFIG_CRYPTO_TWOFISH is not set
> # CONFIG_CRYPTO_TWOFISH_586 is not set
> # CONFIG_CRYPTO_SERPENT is not set
> CONFIG_CRYPTO_AES=m
> # CONFIG_CRYPTO_AES_586 is not set
> # CONFIG_CRYPTO_CAST5 is not set
> # CONFIG_CRYPTO_CAST6 is not set
> # CONFIG_CRYPTO_TEA is not set
> CONFIG_CRYPTO_ARC4=m
> # CONFIG_CRYPTO_KHAZAD is not set
> # CONFIG_CRYPTO_ANUBIS is not set
> # CONFIG_CRYPTO_DEFLATE is not set
> CONFIG_CRYPTO_MICHAEL_MIC=m
> # CONFIG_CRYPTO_CRC32C is not set
> # CONFIG_CRYPTO_CAMELLIA is not set
> # CONFIG_CRYPTO_TEST is not set
> CONFIG_CRYPTO_HW=y
> # CONFIG_CRYPTO_DEV_PADLOCK is not set
> CONFIG_CRYPTO_DEV_GEODE=m
> 
> #
> # Library routines
> #
> CONFIG_BITREVERSE=y
> # CONFIG_CRC_CCITT is not set
> # CONFIG_CRC16 is not set
> # CONFIG_CRC_ITU_T is not set
> CONFIG_CRC32=y
> # CONFIG_CRC7 is not set
> CONFIG_LIBCRC32C=m
> CONFIG_AUDIT_GENERIC=y
> CONFIG_PLIST=y
> CONFIG_HAS_IOMEM=y
> CONFIG_HAS_IOPORT=y
> CONFIG_HAS_DMA=y
> CONFIG_GENERIC_HARDIRQS=y
> CONFIG_GENERIC_IRQ_PROBE=y
> CONFIG_X86_BIOS_REBOOT=y
> CONFIG_KTIME_SCALAR=y
> 
> 
> -- 
> Mathieu Desnoyers
> Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH] Workaround change_page_attr() and global_flush_tlb() df_list inconsistency on i386
  2007-06-19 20:01 ` Problem with global_flush_tlb() on i386 (x86_64? too) " Mathieu Desnoyers
@ 2007-06-19 21:10   ` Mathieu Desnoyers
  2007-06-20  9:01   ` Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2 Andi Kleen
  1 sibling, 0 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-19 21:10 UTC (permalink / raw)
  To: linux-kernel, akpm, ak, mingo; +Cc: mbligh

* Mathieu Desnoyers (compudj@krystal.dyndns.org) wrote:
> Looking more closely into the code to find the cause of the
> change_page_addr()/global_flush_tlb() inconsistency, I see where the
> problem could be:
> 
> In arch/i386/mm/pageattr.c:
> __change_page_attr adds the page to the df_list for deferred removal
> when it is replaced by a large page (going back to the normal flags).
> This list is walked by global_flush_tlb(); it calls flush_map() and
> __free_page for each of these pages.
> 
> flush_map() is the only call that ends up doing a clflush/wbinvd and
> __flush_tlb_all() on every cpu. However, this is only done when there
> are pages recombined in a large page. It never happens when we set the
> page flags to something unusual in __change_page_attr().
> 
> The x86_64 implementation seems to work around this issue by doing a
> flush_map() independently of the deferred_pages list. It will therefore
> call __flush_tlb_all(), which should flush the TLB, but even there, I
> wonder if it should call clflush on the pages that had their flags
> modified by __change_page_attr() ?
> 
> Some input about the best way to fix this (adding the modified pages to
> the deferred list in __change_page_attr() or flushing all the TLBs, and
> all caches, independently of the deferred pages list in
> global_flush_tlb()) would be appreciated. If we add the pages that
> simply had their flags modified to the df_list, would it be ok to issue
> a __free_page on them ?
> 


Workaround change_page_attr() and global_flush_tlb() df_list inconsistency on i386

global_flush_tlb() does not flush the tlb of pages that had their flags changed
by change_page_attr(). It only deals with the pages that are set back to their
normal flags.

Waiting for comments about a cleaner fix, this one does the job.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
 arch/i386/mm/pageattr.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-2.6-lttng/arch/i386/mm/pageattr.c
===================================================================
--- linux-2.6-lttng.orig/arch/i386/mm/pageattr.c	2007-06-19 15:34:14.000000000 -0400
+++ linux-2.6-lttng/arch/i386/mm/pageattr.c	2007-06-19 16:49:52.000000000 -0400
@@ -232,6 +232,8 @@
 			flush_map(page_address(pg));
 		__free_page(pg);
 	}
+	/* Workaround change page attr list missing entries */
+	flush_map(NULL);
 }
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2
  2007-06-19 17:09 Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2 Mathieu Desnoyers
  2007-06-19 20:01 ` Problem with global_flush_tlb() on i386 (x86_64? too) " Mathieu Desnoyers
@ 2007-06-20  1:23 ` Anthony Liguori
  2007-06-20  1:32   ` Mathieu Desnoyers
  2007-06-20  1:49   ` Mathieu Desnoyers
  1 sibling, 2 replies; 12+ messages in thread
From: Anthony Liguori @ 2007-06-20  1:23 UTC (permalink / raw)
  To: Mathieu Desnoyers; +Cc: linux-kernel, akpm, mbligh

Mathieu Desnoyers wrote:
> Hi,
> 
> Trying to test my "Text Edit Lock" patches, I ran into a problem related
> to global_flush_tlb() not doing its job at updating the page flags when,
> it seems, the page has been recently accessed. Therefore, it can only be
> reproduced by doing a couple of iterations.
> 
> I run on a Pentium 4 with the following characteristics:
> 
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 4
> model name      : Intel(R) Pentium(R) 4 CPU 3.00GHz
> stepping        : 1
> cpu MHz         : 3000.201
> cache size      : 1024 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 5
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
> constant_tsc pebs bts sync_rdtsc pni monitor ds_cpl cid xtpr
> bogomips        : 6007.49
> clflush size    : 64
> 
> config :
> CONFIG_X86_INVLPG=y (complete .config at the end)
> CONFIG_PARAVIRT=y/n
> 
> 
> (notice that pge and clflush features are present)
> 
> The kernel is configured in UP (I first saw the problem in SMT, but
> switched to UP and it is still there).
> 
> I provide a really crude hackish test module that shows the problematic
> behavior below.
> 
> Whenever I run the module using global_flush_tlb(), I get the following
> OOPS:
> 
> 
> [ 1112.512389] Init Attr RX
> [ 1112.521691] Init Attr RX end
> [ 1113.702965] Loop 0
> [ 1113.709171] Attr RWX 621545
> [ 1113.717662] Attr RX 621545
> [ 1113.725869] Attr RWX 432917
> [ 1113.734295] Attr RX 432917
> [ 1113.742460] Attr RWX 973425
> [ 1113.750885] Attr RX 973425
> [ 1113.759048] Attr RWX 453890
> [ 1113.767490] Attr RX 453890
> [ 1113.775653] Attr RWX 1035918
> [ 1113.784341] Attr RX 1035918
> [ 1113.792764] Attr RWX 1038276
> [ 1113.801449] Attr RX 1038276
> [ 1113.809902] Attr RWX 71394
> [ 1113.818067] Attr RX 71394
> [ 1113.825970] Attr RWX 88253
> [ 1113.834134] Attr RX 88253
> [ 1113.842039] Attr RWX 108029
> [ 1113.850505] Attr RX 108029
> [ 1113.858670] Attr RWX 767772
> [ 1113.867095] Attr RX 767772
> [ 1113.875259] Attr RWX 251394
> [ 1113.883694] Attr RX 251394
> [ 1113.891859] Attr RWX 817582
> [ 1113.900376] Attr RX 817582
> [ 1113.908540] Attr RWX 577819
> [ 1113.916965] Attr RX 577819
> [ 1113.925127] Attr RWX 56979
> [ 1113.933293] Attr RX 56979
> [ 1113.941195] Attr RWX 72953
> [ 1113.949361] Attr RX 72953
> [ 1113.957265] Attr RWX 94222
> [ 1113.965445] BUG: unable to handle kernel paging request at virtual address c3a1700e
> [ 1113.988291]  printing eip:
> [ 1113.996340] f885e0a6
> [ 1114.002835] *pde = 038c6163
> [ 1114.011145] *pte = 03a17163
> [ 1114.019455] Oops: 0003 [#1]
> [ 1114.027766] PREEMPT 
> [ 1114.034268] LTT NESTING LEVEL : 0 
> [ 1114.044402] Modules linked in: test_rodata ltt_statedump ltt_control sky2 skge rtc snd_hda_intel
> [ 1114.070679] CPU:    0
> [ 1114.070680] EIP:    0060:[<f885e0a6>]    Not tainted VLI
> [ 1114.070681] EFLAGS: 00010282   (2.6.22-rc4-mm2-testssmp #129)
> [ 1114.110395] EIP is at my_open+0xa6/0x124 [test_rodata]
> [ 1114.125711] eax: c3a00000   ebx: 0001700e   ecx: c39e4000   edx: 00000000
> [ 1114.145953] esi: 36f1700e   edi: f885e000   ebp: c39e5ebc   esp: c39e5ea0
> [ 1114.166195] ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
> [ 1114.183583] Process cat (pid: 4112, ti=c39e4000 task=c38ac1b0 task.ti=c39e4000)
> [ 1114.204862] Stack: f885e223 0001700e 00000000 0000f000 c31d3480 00000000 f885e000 c39e5ed8 
> [ 1114.229843]        c01a3c2a c39d2540 c368d4a8 c39d2540 00000000 c368d4a8 c39e5ef8 c016f5d9 
> [ 1114.254830]        c1c0eec0 c378ccfc c39e5eec c39d2540 00008000 c39e5f1c c39e5f0c c016f76b 
> [ 1114.279814] Call Trace:
> [ 1114.287620]  [<c01a3c2a>] proc_reg_open+0x42/0x68
> [ 1114.301655]  [<c016f5d9>] __dentry_open+0xe6/0x1e2
> [ 1114.315944]  [<c016f76b>] nameidata_to_filp+0x35/0x3f
> [ 1114.331008]  [<c016f7b0>] do_filp_open+0x3b/0x43
> [ 1114.344777]  [<c016f7fb>] do_sys_open+0x43/0x116
> [ 1114.358545]  [<c016f906>] sys_open+0x1c/0x1e
> [ 1114.371274]  [<c0104128>] syscall_call+0x7/0xb
> [ 1114.384524]  [<ffffe410>] 0xffffe410
> [ 1114.395178]  =======================
> [ 1114.405823] INFO: lockdep is turned off.
> [ 1114.417504] Code: 60 df 7c c0 b9 63 01 00 00 ba 01 00 00 00 e8 3f 7d 8b c7 0f ae f0 89 f6 e8 5c 80 8b c7 0f ae f0 89 f6 a1 88 eb 85 f8 0f b6 55 f0 <88> 14 03 0f ae f0 89 f6 89 d8 03 05 88 eb 85 f8 05 00 00 00 40 
> [ 1114.474329] EIP: [<f885e0a6>] my_open+0xa6/0x124 [test_rodata] SS:ESP 0068:c39e5ea0
> [ 1114.497187] BUG: sleeping function called from invalid context at kernel/rwsem.c:20
> [ 1114.520025] in_atomic():0, irqs_disabled():1
> [ 1114.532744] INFO: lockdep is turned off.
> [ 1114.544427] irq event stamp: 1894
> [ 1114.554293] hardirqs last  enabled at (1893): [<c03c892b>] _spin_unlock_irq+0x22/0x4e
> [ 1114.577666] hardirqs last disabled at (1894): [<c03c8584>] _spin_lock_irqsave+0x25/0x61
> [ 1114.601556] softirqs last  enabled at (1886): [<c0122988>] __do_softirq+0xe1/0x184
> [ 1114.624149] softirqs last disabled at (1875): [<c0122a9d>] do_softirq+0x72/0x77
> [ 1114.645969]  [<c01051bc>] dump_trace+0x1d5/0x204
> [ 1114.659737]  [<c0105205>] show_trace_log_lvl+0x1a/0x30
> [ 1114.675060]  [<c0105fc2>] show_trace+0x12/0x14
> [ 1114.688308]  [<c0105fd9>] dump_stack+0x15/0x17
> [ 1114.701557]  [<c0118dbf>] __might_sleep+0xcf/0xe1
> [ 1114.715584]  [<c013273c>] down_read+0x18/0x4b
> [ 1114.728574]  [<c011f4a0>] exit_mm+0x27/0xd1
> [ 1114.741045]  [<c0120bc1>] do_exit+0x10f/0x88f
> [ 1114.754035]  [<c01058ef>] do_trap+0x0/0x152
> [ 1114.766503]  [<c0115553>] do_page_fault+0x310/0x7ed
> [ 1114.781050]  [<c03c8bda>] error_code+0x6a/0x70
> [ 1114.794303]  [<f885e0a6>] my_open+0xa6/0x124 [test_rodata]
> [ 1114.810665]  [<c01a3c2a>] proc_reg_open+0x42/0x68
> [ 1114.824692]  [<c016f5d9>] __dentry_open+0xe6/0x1e2
> [ 1114.838979]  [<c016f76b>] nameidata_to_filp+0x35/0x3f
> [ 1114.854044]  [<c016f7b0>] do_filp_open+0x3b/0x43
> [ 1114.867811]  [<c016f7fb>] do_sys_open+0x43/0x116
> [ 1114.881579]  [<c016f906>] sys_open+0x1c/0x1e
> [ 1114.894308]  [<c0104128>] syscall_call+0x7/0xb
> [ 1114.907557]  [<ffffe410>] 0xffffe410
> [ 1114.918212]  =======================
> 
> This is clearly the memory write I am trying to do in the page of
> which I just changed the attributes to RWX.
> 
> If I remove the variable read before I change the flags, it starts
> working correctly (as far as I have tested...).
> 
> If I use my own my_local_tlb_flush() function (not SMP aware) instead of
> global_flush_tlb(), it works correctly.
> 

What is your my_local_tlb_flush() and are you calling with preemption 
disabled?

> I also tried just calling clflush on the modified page just after the
> global_flush_tlb(), and the problem was still there.
> 
> I therefore suspect that
> 
> include/asm-i386/tlbflush.h:
> #define __native_flush_tlb_global()                                     \
>         do {                                                            \
>                 unsigned int tmpreg, cr4, cr4_orig;                     \
>                                                                         \
>                 __asm__ __volatile__(                                   \
>                         "movl %%cr4, %2;  # turn off PGE     \n"        \
>                         "movl %2, %1;                        \n"        \
>                         "andl %3, %1;                        \n"        \
>                         "movl %1, %%cr4;                     \n"        \
>                         "movl %%cr3, %0;                     \n"        \
>                         "movl %0, %%cr3;  # flush TLB        \n"        \
>                         "movl %2, %%cr4;  # turn PGE back on \n"        \
>                         : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \
>                         : "i" (~X86_CR4_PGE)                            \
>                         : "memory");                                    \
>         } while (0)
> 
> is not doing its job correctly. The problem does not seem to be caused
> by PARAVIRT, because it is still buggy even if I disable the PARAVIRT
> config option.

This is actually very conservative seeing as how disabling CR4.PGE 
should be sufficient to flush global pages on modern processors.  I 
suspect you're getting preempted while it's running.

Regards,

Anthony Liguori

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2
  2007-06-20  1:23 ` Problem with global_flush_tlb() on i386 " Anthony Liguori
@ 2007-06-20  1:32   ` Mathieu Desnoyers
  2007-06-20  1:49   ` Mathieu Desnoyers
  1 sibling, 0 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-20  1:32 UTC (permalink / raw)
  To: Anthony Liguori; +Cc: linux-kernel, akpm, mbligh

* Anthony Liguori (anthony@codemonkey.ws) wrote:
> Mathieu Desnoyers wrote:
> >Hi,
> >
> >Trying to test my "Text Edit Lock" patches, I ran into a problem related
> >to global_flush_tlb() not doing its job at updating the page flags when,
> >it seems, the page has been recently accessed. Therefore, it can only be
> >reproduced by doing a couple of iterations.
> >
....
> >This is clearly the memory write I am trying to do in the page of
> >which I just changed the attributes to RWX.
> >
> >If I remove the variable read before I change the flags, it starts
> >working correctly (as far as I have tested...).
> >
> >If I use my own my_local_tlb_flush() function (not SMP aware) instead of
> >global_flush_tlb(), it works correctly.
> >
> 
> What is your my_local_tlb_flush() and are you calling with preemption 
> disabled?
> 

The implementation was below in the email. Full preemption was enabled.

> >I also tried just calling clflush on the modified page just after the
> >global_flush_tlb(), and the problem was still there.
> >
> >I therefore suspect that
> >
> >include/asm-i386/tlbflush.h:
> >#define __native_flush_tlb_global()                                     \
> >        do {                                                            \
> >                unsigned int tmpreg, cr4, cr4_orig;                     \
> >                                                                        \
> >                __asm__ __volatile__(                                   \
> >                        "movl %%cr4, %2;  # turn off PGE     \n"        \
> >                        "movl %2, %1;                        \n"        \
> >                        "andl %3, %1;                        \n"        \
> >                        "movl %1, %%cr4;                     \n"        \
> >                        "movl %%cr3, %0;                     \n"        \
> >                        "movl %0, %%cr3;  # flush TLB        \n"        \
> >                        "movl %2, %%cr4;  # turn PGE back on \n"        \
> >                        : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \
> >                        : "i" (~X86_CR4_PGE)                            \
> >                        : "memory");                                    \
> >        } while (0)
> >
> >is not doing its job correctly. The problem does not seem to be caused
> >by PARAVIRT, because it is still buggy even if I disable the PARAVIRT
> >config option.
> 
> This is actually very conservative seeing as how disabling CR4.PGE 
> should be sufficient to flush global pages on modern processors.  I 
> suspect you're getting preempted while it's running.
> 

Thanks for the advice, but please have a look at my follow-up on the
issue, where I spotted the problem more precisely. It also affects
ioremap, which also uses global_flush_tlb(). I guess this bug is worth
being fixed quickly, even if it is just by applying my workaround (which
is _really_ conservative).

Regards,

Mathieu

> Regards,
> 
> Anthony Liguori

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2
  2007-06-20  1:23 ` Problem with global_flush_tlb() on i386 " Anthony Liguori
  2007-06-20  1:32   ` Mathieu Desnoyers
@ 2007-06-20  1:49   ` Mathieu Desnoyers
  1 sibling, 0 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-20  1:49 UTC (permalink / raw)
  To: Anthony Liguori; +Cc: linux-kernel, akpm, mbligh

* Anthony Liguori (anthony@codemonkey.ws) wrote:
 
> This is actually very conservative seeing as how disabling CR4.PGE 
> should be sufficient to flush global pages on modern processors.  I 
> suspect you're getting preempted while it's running.
> 

Sorry, I just realized that I rejected your preemption explanation
without explaining why:

1 - In my "Text Section" lock code, which is the original place where I
triggered the problem, I take a spinlock around these operations, which
disables preemption.

2 - My sample module plays alone in its own data structures: there is
only one thread accessing the data at a given time (because I do only
one file open at a given time, which I control).

Regards,

Mathieu


-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2
  2007-06-19 20:01 ` Problem with global_flush_tlb() on i386 (x86_64? too) " Mathieu Desnoyers
  2007-06-19 21:10   ` [PATCH] Workaround change_page_attr() and global_flush_tlb() df_list inconsistency on i386 Mathieu Desnoyers
@ 2007-06-20  9:01   ` Andi Kleen
  2007-06-20 16:46     ` Mathieu Desnoyers
  1 sibling, 1 reply; 12+ messages in thread
From: Andi Kleen @ 2007-06-20  9:01 UTC (permalink / raw)
  To: Mathieu Desnoyers; +Cc: linux-kernel, akpm, mingo, mbligh

On Tuesday 19 June 2007 22:01:36 Mathieu Desnoyers wrote:
> Looking more closely into the code to find the cause of the
> change_page_addr()/global_flush_tlb() inconsistency, I see where the
> problem could be:

Yes it's a known problem. I have a hack queued for .22 and there
are proposed patches for .23 too.

ftp://ftp.firstfloor.org/pub/ak/x86_64/late-merge/patches/cpa-flush

-ANdi

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2
  2007-06-20  9:01   ` Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2 Andi Kleen
@ 2007-06-20 16:46     ` Mathieu Desnoyers
  2007-06-20 17:53       ` Andi Kleen
  0 siblings, 1 reply; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-20 16:46 UTC (permalink / raw)
  To: Andi Kleen; +Cc: linux-kernel, akpm, mingo, mbligh

* Andi Kleen (ak@suse.de) wrote:
> On Tuesday 19 June 2007 22:01:36 Mathieu Desnoyers wrote:
> > Looking more closely into the code to find the cause of the
> > change_page_addr()/global_flush_tlb() inconsistency, I see where the
> > problem could be:
> 
> Yes it's a known problem. I have a hack queued for .22 and there
> are proposed patches for .23 too.
> 
> ftp://ftp.firstfloor.org/pub/ak/x86_64/late-merge/patches/cpa-flush
> 
> -ANdi
> 

Hi Andi,

Although I cannot find it at the specified URL, I suspect it is already
in Andrew's tree, in 2.6.22-rc4-mm2, under the name

"x86_64-mm-cpa-cache-flush.patch"

But Andrew's
"revert-x86_64-mm-cpa-cache-flush.patch"

Is applied subsequently, along with the Changelog:

From: Andrew Morton <akpm@linux-foundation.org>

This causes my dual-pIII to hang after "write protecting kernel memory".

config: http://userweb.kernel.org/~akpm/config-vmm.txt

Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Is the version found in 2.6.22-rc4-mm2 the latest ?

I propose to verify if the i386:

if (!PageReserved(kpte_page)) {
   if (cpu_has_pse

check should be also integrated into the global flush tlb ? It would
cause machines not supporting PSE to try to free non existing large
pages, and also would cause problems with reserved pages.

It does not seem to fix the hang on my P4 neither though.

Mathieu

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2
  2007-06-20 16:46     ` Mathieu Desnoyers
@ 2007-06-20 17:53       ` Andi Kleen
  2007-06-20 18:14         ` Mathieu Desnoyers
  2007-06-20 19:39         ` [PATCH] fix x86_64-mm-cpa-cache-flush.patch " Mathieu Desnoyers
  0 siblings, 2 replies; 12+ messages in thread
From: Andi Kleen @ 2007-06-20 17:53 UTC (permalink / raw)
  To: Mathieu Desnoyers; +Cc: linux-kernel, akpm, mingo, mbligh

On Wednesday 20 June 2007 18:46, Mathieu Desnoyers wrote:
> * Andi Kleen (ak@suse.de) wrote:
> > On Tuesday 19 June 2007 22:01:36 Mathieu Desnoyers wrote:
> > > Looking more closely into the code to find the cause of the
> > > change_page_addr()/global_flush_tlb() inconsistency, I see where the
> > > problem could be:
> >
> > Yes it's a known problem. I have a hack queued for .22 and there
> > are proposed patches for .23 too.
> >
> > ftp://ftp.firstfloor.org/pub/ak/x86_64/late-merge/patches/cpa-flush
> >
> > -ANdi
>
> Hi Andi,
>
> Although I cannot find it at the specified URL, I suspect it is already
> in Andrew's tree, in 2.6.22-rc4-mm2, under the name

Try again

> "x86_64-mm-cpa-cache-flush.patch"

No, that's a different patch with also at least one known bug.

-Andi

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2
  2007-06-20 17:53       ` Andi Kleen
@ 2007-06-20 18:14         ` Mathieu Desnoyers
  2007-06-20 19:39         ` [PATCH] fix x86_64-mm-cpa-cache-flush.patch " Mathieu Desnoyers
  1 sibling, 0 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-20 18:14 UTC (permalink / raw)
  To: Andi Kleen; +Cc: linux-kernel, akpm, mingo, mbligh

* Andi Kleen (ak@suse.de) wrote:
> On Wednesday 20 June 2007 18:46, Mathieu Desnoyers wrote:
> > * Andi Kleen (ak@suse.de) wrote:
> > > On Tuesday 19 June 2007 22:01:36 Mathieu Desnoyers wrote:
> > > > Looking more closely into the code to find the cause of the
> > > > change_page_addr()/global_flush_tlb() inconsistency, I see where the
> > > > problem could be:
> > >
> > > Yes it's a known problem. I have a hack queued for .22 and there
> > > are proposed patches for .23 too.
> > >
> > > ftp://ftp.firstfloor.org/pub/ak/x86_64/late-merge/patches/cpa-flush
> > >
> > > -ANdi
> >
> > Hi Andi,
> >
> > Although I cannot find it at the specified URL, I suspect it is already
> > in Andrew's tree, in 2.6.22-rc4-mm2, under the name
> 
> Try again
> 
> > "x86_64-mm-cpa-cache-flush.patch"
> 
> No, that's a different patch with also at least one known bug.
> 
> -Andi

Yeah, I guess disabling clflush and calling wbinvd and a full TLB flush
on every CPU is the safe way to go.

However, digging in your previous patch (in Andrew's tree), I think I
found a potential cause for the problem:

__change_page_attr does a list_add of &kpte_page->lru. If I am not
mistaken, there can be more than one consecutive struct page *page
having their PTE in the same kpte_page. Therefore, it would generate
many list_add of the same kpte_page, which would cause a loop in the
linked list, and therefore a system hang.

Does it make sense ?

Mathieu

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH] fix x86_64-mm-cpa-cache-flush.patch in 2.6.22-rc4-mm2
  2007-06-20 17:53       ` Andi Kleen
  2007-06-20 18:14         ` Mathieu Desnoyers
@ 2007-06-20 19:39         ` Mathieu Desnoyers
       [not found]           ` <20070625212553.ec2caba9.akpm@linux-foundation.org>
  1 sibling, 1 reply; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-20 19:39 UTC (permalink / raw)
  To: Andi Kleen; +Cc: linux-kernel, akpm, mingo, mbligh

* Andi Kleen (ak@suse.de) wrote:
> On Wednesday 20 June 2007 18:46, Mathieu Desnoyers wrote:
> > * Andi Kleen (ak@suse.de) wrote:
> > > On Tuesday 19 June 2007 22:01:36 Mathieu Desnoyers wrote:
> > > > Looking more closely into the code to find the cause of the
> > > > change_page_addr()/global_flush_tlb() inconsistency, I see where the
> > > > problem could be:
> > >
> > > Yes it's a known problem. I have a hack queued for .22 and there
> > > are proposed patches for .23 too.
> > >
> > > ftp://ftp.firstfloor.org/pub/ak/x86_64/late-merge/patches/cpa-flush
> > >
> > > -ANdi
> >
> > Hi Andi,
> >
> > Although I cannot find it at the specified URL, I suspect it is already
> > in Andrew's tree, in 2.6.22-rc4-mm2, under the name
> 
> Try again
> 
> > "x86_64-mm-cpa-cache-flush.patch"
> 
> No, that's a different patch with also at least one known bug.
> 
> -Andi

I just fixed x86_64 and i386, using a high order bit of private as a
flag "page needs deferred flush". It works well on i386, not tested on
x86_64.


x86_64 mm CPA cache flush fix for i386 and x86_64

Andi's patch introduced a hang for i386 machines when write protecting pages.

1st fix : use the appropritate checks in global flush tlb.
2nd fix : the hang was caused by multiple list_add of the same
kpte_page. Use a high order bit to keep track of which kpte_pages are
currently in the list and waiting for deferred flush.

This patch applies on top of the x86_64-mm-cpa-cache-flush.patch in the -mm
tree (2.6.22-rc4-mm2).

(note: the revert-x86_64-mm-cpa-cache-flush.patch must be discarded from the -mm
tree)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
 arch/i386/mm/pageattr.c         |   24 +++++++++++++++++++-----
 arch/x86_64/mm/pageattr.c       |   16 ++++++++++++----
 include/asm-i386/cacheflush.h   |   11 +++++++++++
 include/asm-x86_64/cacheflush.h |   11 +++++++++++
 4 files changed, 53 insertions(+), 9 deletions(-)

Index: linux-2.6-lttng/arch/i386/mm/pageattr.c
===================================================================
--- linux-2.6-lttng.orig/arch/i386/mm/pageattr.c	2007-06-20 12:51:10.000000000 -0400
+++ linux-2.6-lttng/arch/i386/mm/pageattr.c	2007-06-20 15:28:56.000000000 -0400
@@ -53,6 +53,9 @@
 	/*
 	 * page_private is used to track the number of entries in
 	 * the page table page that have non standard attributes.
+	 * We use the highest bit to tell is the page needs to be flushed,
+	 * therefore page_private_cpa_count() must be used to read the count.
+	 * Count increment and decrement never overflow on the highest bit.
 	 */
 	SetPagePrivate(base);
 	page_private(base) = 0;
@@ -160,7 +163,7 @@
 		page_private(kpte_page)++;
 	} else if (!pte_huge(*kpte)) {
 		set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL));
-		BUG_ON(page_private(kpte_page) == 0);
+		BUG_ON(page_private_cpa_count(kpte_page) == 0);
 		page_private(kpte_page)--;
 	} else
 		BUG();
@@ -170,10 +173,12 @@
 	 * time (not via split_large_page) and in turn we must not
 	 * replace it with a largepage.
 	 */
-
-	list_add(&kpte_page->lru, &df_list);
+	if (!(page_private(kpte_page) & CPA_FLUSH)) {
+		page_private(kpte_page) |= CPA_FLUSH;
+		list_add(&kpte_page->lru, &df_list);
+	}
 	if (!PageReserved(kpte_page)) {
-		if (cpu_has_pse && (page_private(kpte_page) == 0)) {
+		if (cpu_has_pse && (page_private_cpa_count(kpte_page) == 0)) {
 			paravirt_release_pt(page_to_pfn(kpte_page));
 			revert_page(kpte_page, address);
 		}
@@ -228,9 +233,13 @@
 	if (!cpu_has_clflush)
 		flush_map(NULL);
 	list_for_each_entry_safe(pg, next, &l, lru) {
+		list_del(&pg->lru);
+		page_private(pg) &= ~CPA_FLUSH;
 		if (cpu_has_clflush)
 			flush_map(page_address(pg));
-		if (page_private(pg) != 0)
+
+		if (PageReserved(pg) || !cpu_has_pse
+				|| page_private_cpa_count(pg) != 0)
 			continue;
 		ClearPagePrivate(pg);
 		__free_page(pg);
@@ -252,6 +261,11 @@
 	change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
 	/* we should perform an IPI and flush all tlbs,
 	 * but that can deadlock->flush only current cpu.
+	 *
+	 * FIXME : this is utterly buggy; it does not clean the df_list
+	 * populated by change_page_attr and could cause a double addition to
+	 * this list. With what exactly would the IPI deadlock ?
+	 * Mathieu Desnoyers
 	 */
 	__flush_tlb_all();
 }
Index: linux-2.6-lttng/include/asm-i386/cacheflush.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-i386/cacheflush.h	2007-06-20 14:53:39.000000000 -0400
+++ linux-2.6-lttng/include/asm-i386/cacheflush.h	2007-06-20 15:23:07.000000000 -0400
@@ -4,6 +4,17 @@
 /* Keep includes the same across arches.  */
 #include <linux/mm.h>
 
+/* Use the highest bit of the page's private field to flag the kpte page as
+ * needing a flush. The lower bits are used as a counter of the number of ptes
+ * with special flags, within the page, which will never use the highest bit.
+ * pte_t being 8 bytes in size,
+ * 4096/sizeof(pte_t) = 512, which holds in 9 bits.
+ * For Large pages:
+ * 4MB/sizeof(pte_t) = 524288, which holds in 19 bits.
+ */
+#define CPA_FLUSH	(1UL<<31)
+#define page_private_cpa_count(page)	(page_private(page) & (~CPA_FLUSH))
+
 /* Caches aren't brain-dead on the intel. */
 #define flush_cache_all()			do { } while (0)
 #define flush_cache_mm(mm)			do { } while (0)
Index: linux-2.6-lttng/include/asm-x86_64/cacheflush.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86_64/cacheflush.h	2007-06-20 14:55:23.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86_64/cacheflush.h	2007-06-20 15:22:49.000000000 -0400
@@ -4,6 +4,17 @@
 /* Keep includes the same across arches.  */
 #include <linux/mm.h>
 
+/* Use the highest bit of the page's private field to flag the kpte page as
+ * needing a flush. The lower bits are used as a counter of the number of ptes
+ * with special flags, within the page, which will never use the highest bit.
+ * pte_t being 8 bytes in size,
+ * 4096/sizeof(pte_t) = 512, which holds in 9 bits.
+ * For Large pages:
+ * 4MB/sizeof(pte_t) = 524288, which holds in 19 bits.
+ */
+#define CPA_FLUSH	(1UL<<63)
+#define page_private_cpa_count(page)	(page_private(page) & (~CPA_FLUSH))
+
 /* Caches aren't brain-dead on the intel. */
 #define flush_cache_all()			do { } while (0)
 #define flush_cache_mm(mm)			do { } while (0)
Index: linux-2.6-lttng/arch/x86_64/mm/pageattr.c
===================================================================
--- linux-2.6-lttng.orig/arch/x86_64/mm/pageattr.c	2007-06-20 15:00:04.000000000 -0400
+++ linux-2.6-lttng/arch/x86_64/mm/pageattr.c	2007-06-20 15:24:35.000000000 -0400
@@ -47,6 +47,9 @@
 	/*
 	 * page_private is used to track the number of entries in
 	 * the page table page have non standard attributes.
+	 * We use the highest bit to tell is the page needs to be flushed,
+	 * therefore page_private_cpa_count() must be used to read the count.
+	 * Count increment and decrement never overflow on the highest bit.
 	 */
 	SetPagePrivate(base);
 	page_private(base) = 0;
@@ -79,6 +82,7 @@
 		asm volatile("wbinvd" ::: "memory");
 	list_for_each_entry(pg, l, lru) {
 		void *adr = page_address(pg);
+		page_private(pg) &= ~CPA_FLUSH;
 		if (cpu_has_clflush)
 			cache_flush_page(adr);
 	}
@@ -94,7 +98,10 @@
 
 static inline void save_page(struct page *fpage)
 {
-	list_add(&fpage->lru, &deferred_pages);
+	if (!(page_private(fpage) & CPA_FLUSH)) {
+		page_private(kpte_page) |= CPA_FLUSH;
+		list_add(&fpage->lru, &deferred_pages);
+	}
 }
 
 /* 
@@ -150,7 +157,7 @@
 		page_private(kpte_page)++;
 	} else if (!pte_huge(*kpte)) {
 		set_pte(kpte, pfn_pte(pfn, ref_prot));
-		BUG_ON(page_private(kpte_page) == 0);
+		BUG_ON(page_private_cpa_count(kpte_page) == 0);
 		page_private(kpte_page)--;
 	} else
 		BUG();
@@ -159,7 +166,7 @@
  	BUG_ON(PageReserved(kpte_page));
 
 	save_page(kpte_page);
-	if (page_private(kpte_page) == 0)
+	if (page_private_cpa_count(kpte_page) == 0)
 		revert_page(address, ref_prot);
 	return 0;
 } 
@@ -232,7 +239,8 @@
 	flush_map(&l);
 
 	list_for_each_entry_safe(pg, next, &l, lru) {
-		if (page_private(pg) != 0)
+		list_del(&pg->lru);
+		if (page_private_cpa_count(pg) != 0)
 			continue;
 		ClearPagePrivate(pg);
 		__free_page(pg);
-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] fix x86_64-mm-cpa-cache-flush.patch in 2.6.22-rc4-mm2
       [not found]           ` <20070625212553.ec2caba9.akpm@linux-foundation.org>
@ 2007-06-29  4:20             ` Mathieu Desnoyers
  0 siblings, 0 replies; 12+ messages in thread
From: Mathieu Desnoyers @ 2007-06-29  4:20 UTC (permalink / raw)
  To: Andrew Morton; +Cc: Andi Kleen, linux-kernel

> Seems that Andi has changed
> ftp://ftp.firstfloor.org/pub/ak/x86_64/quilt/patches/cpa-cache-flush so
> hopefully these fixes will not be needed any more..
> 

Hrm, actually, something is very wrong with this patch. Please see
comments below.


...
> Index: linux/arch/x86_64/mm/pageattr.c
> ===================================================================
> --- linux.orig/arch/x86_64/mm/pageattr.c
> +++ linux/arch/x86_64/mm/pageattr.c
> @@ -234,7 +235,10 @@ void global_flush_tlb(void)
>  	flush_map(&l);
>  
>  	list_for_each_entry_safe(pg, next, &l, lru) {
> +		if (page_private(pg) != 0)
> +			continue;
>  		ClearPagePrivate(pg);
> +		clear_bit(PG_arch_1, &pg->flags);


First issue:

clear_bit should be before the if (page_private(pg) != 0). As a result,
in the current patch, the flush won't be done the second time flags
are changed in a page, because the bit would only be cleared when each
pte within the page are set back to normal page attributes.

I would also suggest putting a list_del before the if (page_private(pg)
!= 0). It is not required, but would make sure the pointers are
poisoned.

>  		__free_page(pg);
>  	} 
>  } 
> Index: linux/arch/i386/mm/pageattr.c
> ===================================================================
> --- linux.orig/arch/i386/mm/pageattr.c
> +++ linux/arch/i386/mm/pageattr.c
> @@ -82,7 +82,7 @@ static void flush_kernel_map(void *arg)
>  	struct page *p;
>  
>  	/* High level code is not ready for clflush yet */
> -	if (0 && cpu_has_clflush) {
> +	if (cpu_has_clflush) {
>  		list_for_each_entry (p, lh, lru)
>  			cache_flush_page(p);
>  	} else if (boot_cpu_data.x86_model >= 4)
> @@ -136,6 +136,12 @@ static inline void revert_page(struct pa
>  			    ref_prot));
>  }
>  
> +static inline void save_page(struct page *kpte_page)
> +{
> +	if (!test_and_set_bit(PG_arch_1, &kpte_page->flags))
> +		list_add(&kpte_page->lru, &df_list);
> +}
> +
>  static int
>  __change_page_attr(struct page *page, pgprot_t prot)
>  { 
> @@ -150,6 +156,9 @@ __change_page_attr(struct page *page, pg
>  	if (!kpte)
>  		return -EINVAL;
>  	kpte_page = virt_to_page(kpte);
> +	BUG_ON(PageLRU(kpte_page));
> +	BUG_ON(PageCompound(kpte_page));
> +
>  	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) { 
>  		if (!pte_huge(*kpte)) {
>  			set_pte_atomic(kpte, mk_pte(page, prot)); 
> @@ -179,11 +188,11 @@ __change_page_attr(struct page *page, pg
>  	 * time (not via split_large_page) and in turn we must not
>  	 * replace it with a largepage.
>  	 */
> +
> +	save_page(kpte_page);
>  	if (!PageReserved(kpte_page)) {
>  		if (cpu_has_pse && (page_private(kpte_page) == 0)) {
> -			ClearPagePrivate(kpte_page);
>  			paravirt_release_pt(page_to_pfn(kpte_page));
> -			list_add(&kpte_page->lru, &df_list);
>  			revert_page(kpte_page, address);
>  		}
>  	}
> @@ -236,6 +245,10 @@ void global_flush_tlb(void)
>  	spin_unlock_irq(&cpa_lock);
>  	flush_map(&l);
>  	list_for_each_entry_safe(pg, next, &l, lru) {
> +		if (page_private(pg) != 0)
> +			continue;
> +		ClearPagePrivate(pg);
> +		clear_bit(PG_arch_1, &pg->flags);

Same two issues pointed for x86_64 applies here: clear_bit and a
list_del should be put before the if statement.

Mathieu

>  		__free_page(pg);
>  	}
>  }


-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2007-06-29  4:20 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-06-19 17:09 Problem with global_flush_tlb() on i386 in 2.6.22-rc4-mm2 Mathieu Desnoyers
2007-06-19 20:01 ` Problem with global_flush_tlb() on i386 (x86_64? too) " Mathieu Desnoyers
2007-06-19 21:10   ` [PATCH] Workaround change_page_attr() and global_flush_tlb() df_list inconsistency on i386 Mathieu Desnoyers
2007-06-20  9:01   ` Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2 Andi Kleen
2007-06-20 16:46     ` Mathieu Desnoyers
2007-06-20 17:53       ` Andi Kleen
2007-06-20 18:14         ` Mathieu Desnoyers
2007-06-20 19:39         ` [PATCH] fix x86_64-mm-cpa-cache-flush.patch " Mathieu Desnoyers
     [not found]           ` <20070625212553.ec2caba9.akpm@linux-foundation.org>
2007-06-29  4:20             ` Mathieu Desnoyers
2007-06-20  1:23 ` Problem with global_flush_tlb() on i386 " Anthony Liguori
2007-06-20  1:32   ` Mathieu Desnoyers
2007-06-20  1:49   ` Mathieu Desnoyers

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