* Re: 2.6.24-rc5-mm1 -- inconsistent {in-softirq-W} -> {softirq-on-R} usage.
From: Herbert Xu @ 2007-12-16 3:10 UTC (permalink / raw)
To: Andrew Morton; +Cc: miles.lane, linux-kernel, netdev, mingo, a.p.zijlstra
In-Reply-To: <20071215031341.66dc0d05.akpm@linux-foundation.org>
Andrew Morton <akpm@linux-foundation.org> wrote:
>
> My suspicion is that you've hit bad breakage in networking and lockdep just
> isn't sufficiently robust to handle what it's being given.
>
> Can you suggest a way in which others can reproduce this?
I can reproduce this now. I suspect it's to do with the namespace
work. I'll let you know when I have digged further.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* Re: 2.6.24-rc5-mm1: cat /proc/net/packet -> oops
From: Herbert Xu @ 2007-12-16 3:07 UTC (permalink / raw)
To: Mariusz Kozlowski; +Cc: akpm, jgarzik, linux-kernel, netdev, davem, den, xemul
In-Reply-To: <200712160118.58611.m.kozlowski@tuxland.pl>
Mariusz Kozlowski <m.kozlowski@tuxland.pl> wrote:
>
> git-ubi.patch
> GOOD
> #
> git-net.patch
> BAD
> ipsec-fix-reversed-icmp6-policy-check.patch
>
> but this seems to be far from precise :)
I suspect namespace borkage. But just because you pin-pointed
my patch I'll try to track it down :)
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* Re: [PATCH 3/3] [UDP6]: Counter increment on BH mode
From: Herbert Xu @ 2007-12-16 2:36 UTC (permalink / raw)
To: Ingo Molnar
Cc: Alexey Kuznetsov, Wang Chen, Gerrit Renker, davem, andi, netdev,
Linux Kernel Mailing List, Christoph Lameter
In-Reply-To: <20071215184327.GA21434@elte.hu>
On Sat, Dec 15, 2007 at 07:43:28PM +0100, Ingo Molnar wrote:
>
> we could perhaps introduce stat_smp_processor_id(), which signals that
> the CPU id is used for statistical purposes and does not have to be
> exact? In any case, your patch looks good too.
Unfortunately that doesn't work because we can then have two
CPUs trying to update the same counter which may corrupt it.
However, an optimisation is indeed possible with some work.
If we can get the address of the per-cpu counter against
some sort of a per-cpu base pointer, e.g., %gs on x86, then
we can do
incq %gs:(%rax)
where %rax would be the offset with %gs as the base. This would
obviate the need for the CPU ID and therefore avoid disabling
preemption.
Hmm, wasn't Christoph working on something like that?
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* [SNMP]: Fix SNMP counters with PREEMPT
From: Herbert Xu @ 2007-12-16 2:30 UTC (permalink / raw)
To: Eric Dumazet
Cc: Alexey Kuznetsov, Wang Chen, Gerrit Renker, davem, andi, netdev,
Linux Kernel Mailing List, Christoph Lameter, Ingo Molnar
In-Reply-To: <476408D7.50205@cosmosbay.com>
On Sat, Dec 15, 2007 at 06:03:19PM +0100, Eric Dumazet wrote:
>
> How come you change SNMP_INC_STATS_USER() but not SNMP_INC_STATS() ?
Heh, my brain must have blocked me from seeing it because it's
too hard :)
Let's fix it the stupid way first and I'll do a local_t conversion
later.
[SNMP]: Fix SNMP counters with PREEMPT
The SNMP macros use raw_smp_processor_id() in process context
which is illegal because the process may be preempted and then
migrated to another CPU.
This patch makes it use get_cpu/put_cpu to disable preemption.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Thanks,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
diff --git a/include/net/snmp.h b/include/net/snmp.h
index 9c5793d..fbb6666 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -23,6 +23,7 @@
#include <linux/cache.h>
#include <linux/snmp.h>
+#include <linux/smp.h>
/*
* Mibs are stored in array of unsigned long.
@@ -135,14 +136,26 @@ struct linux_mib {
#define SNMP_INC_STATS_BH(mib, field) \
(per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field]++)
#define SNMP_INC_STATS_USER(mib, field) \
- (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field]++)
+ do { \
+ per_cpu_ptr(mib[1], get_cpu())->mibs[field]++; \
+ put_cpu(); \
+ } while (0)
#define SNMP_INC_STATS(mib, field) \
- (per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id())->mibs[field]++)
+ do { \
+ per_cpu_ptr(mib[!in_softirq()], get_cpu())->mibs[field]++; \
+ put_cpu(); \
+ } while (0)
#define SNMP_DEC_STATS(mib, field) \
- (per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id())->mibs[field]--)
+ do { \
+ per_cpu_ptr(mib[!in_softirq()], get_cpu())->mibs[field]--; \
+ put_cpu(); \
+ } while (0)
#define SNMP_ADD_STATS_BH(mib, field, addend) \
(per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field] += addend)
#define SNMP_ADD_STATS_USER(mib, field, addend) \
- (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field] += addend)
+ do { \
+ per_cpu_ptr(mib[1], get_cpu())->mibs[field] += addend; \
+ put_cpu(); \
+ } while (0)
#endif
^ permalink raw reply related
* Re: [Bugme-new] [Bug 9543] New: RTNL: assertion failed at net/ipv6/addrconf.c (2164)/RTNL: assertion failed at net/ipv4/devinet.c (1055)
From: Herbert Xu @ 2007-12-16 2:27 UTC (permalink / raw)
To: Andy Gospodarek
Cc: herbert, olel, fubar, akpm, bugme-daemon, shemminger, davem,
netdev
In-Reply-To: <bdfc5d6e0712150709k2dc0a845n84c494c519298f8d@mail.gmail.com>
Andy Gospodarek <andy@greyhouse.net> wrote:
>
> I agree with you completely, Herbet, which is why I was surprised that
> my first apparently did not resolve the issue. I felt it should
> have....
Did it change all occurrences of read_lock(&bond->lock) to
read_lock_bh? If so I better look at the lockdep output again.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* Re: 2.6.24-rc5-mm1: cat /proc/net/packet -> oops
From: Mariusz Kozlowski @ 2007-12-16 0:18 UTC (permalink / raw)
To: Andrew Morton, jgarzik; +Cc: linux-kernel, netdev
In-Reply-To: <20071213024050.7d6e5f3e.akpm@linux-foundation.org>
[-- Attachment #1: Type: text/plain, Size: 3514 bytes --]
Hello,
As one of usual tests I run the following script:
for i in `find /proc -type f`; do
echo -n "cat $i > /dev/null ... ";
cat $i > /dev/null;
echo "done";
done
This time the culprit is /proc/net/packet. cat process gets killed
$ cat /proc/net/packet
Segmentation fault
and lost in lots of messages from the script but for some reason there is no
info in syslog (why?). I could capture the oops only when issued sysrq-7
or grater. That's why I didn't catch the oops earlier.
I found it because the bug makes my sparc64 box need a hardware reset most of the
time it happens and produces oops 2 screens long. x86 kills the cat process but
system is still usable and running fine. Bisection points to:
git-ubi.patch
GOOD
#
git-net.patch
BAD
ipsec-fix-reversed-icmp6-policy-check.patch
but this seems to be far from precise :)
$ grep ^commit git-net.patch | wc -l
361
Not sure if this is important but when bisecting the mm tree the oops got shorter
at some point so maybe some other patch is also involved. This one is from x86:
[ 194.508398] BUG: unable to handle kernel paging request at virtual address bbbbbd47
[ 194.508412] printing eip: c0135d59 *pde = 00000000
[ 194.508419] Oops: 0000 [#1] PREEMPT
[ 194.508424] last sysfs file: /devices/pci0000:00/0000:00:01.0/0000:01:05.0/resource
[ 194.508428] Modules linked in: usbhid hid orinoco_cs orinoco hermes pcmcia firmware_class uhci_hcd ehci_hcd usbcore psmouse yenta_socket rsrc_nonstatic rtc 8139too
[ 194.508443]
[ 194.508447] Pid: 5368, comm: cat Not tainted (2.6.24-rc5 #9)
[ 194.508450] EIP: 0060:[<c0135d59>] EFLAGS: 00210046 CPU: 0
[ 194.508466] EIP is at __lock_acquire+0x5b/0xfc4
[ 194.508469] EAX: 00200002 EBX: 00200246 ECX: bbbbbd43 EDX: 00000002
[ 194.508472] ESI: bbbbbd43 EDI: 00000000 EBP: d816ce80 ESP: d816ce14
[ 194.508475] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 194.508479] Process cat (pid: 5368, ti=d816c000 task=d826a000 task.ti=d816c000)
[ 194.508481] Stack: c0135a21 d826a000 00000000 d816ce38 c0135697 00000000 d826a000 c0146ded
[ 194.508490] c1304f98 00000002 00000000 bbbbbd43 00000001 d826a000 d816cec0 c013681d
[ 194.508498] 00000006 00000003 c03daa08 00000001 00000044 000002ad 00000000 00000005
[ 194.508506] Call Trace:
[ 194.508508] [<c01035d8>] show_trace_log_lvl+0x1a/0x30
[ 194.508518] [<c0103693>] show_stack_log_lvl+0xa5/0xca
[ 194.508523] [<c0103787>] show_registers+0xcf/0x23f
[ 194.508528] [<c0103a04>] die+0x10d/0x1f5
[ 194.508532] [<c0110cee>] do_page_fault+0x27e/0x5f0
[ 194.508540] [<c034684a>] error_code+0x6a/0x70
[ 194.508550] [<c0136d20>] lock_acquire+0x5e/0x76
[ 194.508555] [<c03461a6>] _read_lock+0x35/0x42
[ 194.508560] [<c02d957a>] sock_i_ino+0x14/0x30
[ 194.508568] [<c032c7e8>] packet_seq_show+0x19/0xa0
[ 194.508576] [<c0179f5c>] seq_read+0x19a/0x29e
[ 194.508583] [<c0191b25>] proc_reg_read+0x57/0x78
[ 194.508590] [<c0161c8a>] vfs_read+0x89/0x11d
[ 194.508596] [<c0162054>] sys_read+0x3d/0x64
[ 194.508600] [<c010261a>] sysenter_past_esp+0x5f/0xa5
[ 194.508605] =======================
[ 194.508607] Code: c0 85 c0 0f 84 64 03 00 00 9c 58 f6 c4 02 0f 85 b8 07 00 00 83 ff 07 0f 87 de 07 00 00 85 ff 8d 76 00 0f 85 4f 03 00 00 8b 4d c0 <8b> 71 04 85 f6 0f 84 41 03 00 00 89 f0 e8 d8 d7 ff ff 85 c0 0f
[ 194.508651] EIP: [<c0135d59>] __lock_acquire+0x5b/0xfc4 SS:ESP 0068:d816ce14
[ 194.508660] note: cat[5368] exited with preempt_count 2
.config attached.
Regards,
Mariusz
[-- Attachment #2: .config --]
[-- Type: text/plain, Size: 41742 bytes --]
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.24-rc5
# Sun Dec 16 00:22:27 2007
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
# CONFIG_X86_64 is not set
CONFIG_X86=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_SEMAPHORE_SLEEPERS=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_RWSEM_GENERIC_SPINLOCK is not set
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_GENERIC_TIME_VSYSCALL is not set
CONFIG_ARCH_SUPPORTS_OPROFILE=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ZONE_DMA32 is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y
# CONFIG_AUDIT_ARCH is not set
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_KTIME_SCALAR=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
# CONFIG_CGROUPS is not set
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_FAIR_USER_SCHED=y
# CONFIG_FAIR_CGROUP_SCHED is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
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_SLUB_DEBUG=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
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 is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_LSF is not set
# CONFIG_BLK_DEV_BSG is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
CONFIG_IOSCHED_DEADLINE=y
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_DEFAULT_AS is not set
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# 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_X86_VSMP is not set
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
# CONFIG_PARAVIRT_GUEST 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_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_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_GENERIC_CPU is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_X86_XADD=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=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_FAMILY=4
# CONFIG_HPET_TIMER is not set
CONFIG_ARCH_SUPPORTS_KVM=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_X86_UP_APIC=y
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
# CONFIG_X86_MCE_P4THERMAL is not set
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
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
CONFIG_PAGE_OFFSET=0xC0000000
# CONFIG_X86_PAE is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=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_SPARSEMEM_VMEMMAP_ENABLE is not set
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_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 is not set
CONFIG_PHYSICAL_START=0x100000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x100000
# CONFIG_COMPAT_VDSO is not set
#
# Power management options
#
CONFIG_PM=y
# CONFIG_PM_LEGACY is not set
# CONFIG_PM_DEBUG is not set
# CONFIG_SUSPEND is not set
# CONFIG_HIBERNATION is not set
CONFIG_ACPI=y
# CONFIG_ACPI_PROCFS is not set
# CONFIG_ACPI_PROCFS_POWER is not set
# CONFIG_ACPI_PROC_EVENT is not set
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 is not set
CONFIG_ACPI_SBS=y
#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# CONFIG_CPU_IDLE is not set
#
# Bus options (PCI etc.)
#
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_PCI_DOMAINS=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_ARCH_SUPPORTS_MSI=y
# CONFIG_PCI_MSI is not set
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
CONFIG_HT_IRQ=y
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=y
# CONFIG_PCMCIA_DEBUG is not set
CONFIG_PCMCIA=m
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y
#
# PC-card bridges
#
CONFIG_YENTA=m
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=m
CONFIG_I82092=m
CONFIG_I82365=m
CONFIG_TCIC=m
CONFIG_PCMCIA_PROBE=y
CONFIG_PCCARD_NONSTATIC=m
# CONFIG_HOTPLUG_PCI is not set
#
# Executable file formats / Emulations
#
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_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 is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG 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 is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
# 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
# CONFIG_NET_SCHED is not set
CONFIG_NET_SCH_FIFO=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_HAMRADIO=y
#
# Packet Radio protocols
#
CONFIG_AX25=m
CONFIG_AX25_DAMA_SLAVE=y
CONFIG_NETROM=m
CONFIG_ROSE=m
#
# AX.25 network device drivers
#
CONFIG_MKISS=m
CONFIG_6PACK=m
CONFIG_BPQETHER=m
# CONFIG_DMASCC is not set
CONFIG_SCC=m
CONFIG_SCC_DELAY=y
CONFIG_SCC_TRXECHO=y
CONFIG_BAYCOM_SER_FDX=m
CONFIG_BAYCOM_SER_HDX=m
CONFIG_BAYCOM_PAR=m
CONFIG_BAYCOM_EPP=m
CONFIG_YAM=m
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
#
# Wireless
#
CONFIG_CFG80211=y
CONFIG_NL80211=y
CONFIG_WIRELESS_EXT=y
CONFIG_MAC80211=y
CONFIG_MAC80211_RCSIMPLE=y
# CONFIG_MAC80211_DEBUG is not set
CONFIG_IEEE80211=m
# CONFIG_IEEE80211_DEBUG is not set
CONFIG_IEEE80211_CRYPT_WEP=m
CONFIG_IEEE80211_CRYPT_CCMP=m
CONFIG_IEEE80211_CRYPT_TKIP=m
CONFIG_IEEE80211_SOFTMAC=m
# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
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 is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_PC_PCMCIA is not set
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
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 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 is not set
CONFIG_TIFM_CORE=m
CONFIG_IDE=y
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_IDECS is not set
# CONFIG_BLK_DEV_DELKIN is not set
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
CONFIG_BLK_DEV_IDESCSI=m
# 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 is not set
# CONFIG_BLK_DEV_PLATFORM is not set
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
CONFIG_BLK_DEV_ALI15X3=y
# CONFIG_WDC_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 is not set
# 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
#
# Other IDE chipsets support
#
#
# Note: most of these also require special kernel boot parameters
#
# CONFIG_BLK_DEV_4DRIVES is not set
# CONFIG_BLK_DEV_ALI14XX is not set
# CONFIG_BLK_DEV_DTC2278 is not set
# CONFIG_BLK_DEV_HT6560B is not set
# CONFIG_BLK_DEV_QD65XX is not set
# CONFIG_BLK_DEV_UMC8672 is not set
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDE_ARCH_OBSOLETE_INIT=y
# 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=m
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR 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=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
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_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
# CONFIG_FIREWIRE_OHCI is not set
# CONFIG_FIREWIRE_SBP2 is not set
CONFIG_IEEE1394=m
#
# Subsystem Options
#
# CONFIG_IEEE1394_VERBOSEDEBUG is not set
#
# Controllers
#
#
# Texas Instruments PCILynx requires I2C
#
# CONFIG_IEEE1394_OHCI1394 is not set
#
# Protocols
#
# CONFIG_IEEE1394_SBP2 is not set
# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
# CONFIG_IEEE1394_ETH1394 is not set
# CONFIG_IEEE1394_RAWIO is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_IP1000 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_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 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_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=m
# CONFIG_8139TOO_PIO is not set
# 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 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
# CONFIG_PCMCIA_RAYCS is not set
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_LIBERTAS is not set
# CONFIG_AIRO is not set
CONFIG_HERMES=m
# CONFIG_PLX_HERMES is not set
# CONFIG_TMD_HERMES is not set
# CONFIG_NORTEL_HERMES is not set
# CONFIG_PCI_HERMES is not set
CONFIG_PCMCIA_HERMES=m
# CONFIG_PCMCIA_SPECTRUM is not set
# CONFIG_ATMEL is not set
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_WL3501 is not set
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_RTL8187 is not set
# CONFIG_ADM8211 is not set
# CONFIG_P54_COMMON is not set
# CONFIG_IWLWIFI is not set
# CONFIG_HOSTAP is not set
# CONFIG_BCM43XX is not set
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_ZD1211RW is not set
# CONFIG_RT2X00 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 is not set
# CONFIG_NET_PCMCIA 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=y
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=y
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
CONFIG_NETCONSOLE=m
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV 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_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=m
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_PS2_ELANTECH 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 is not set
CONFIG_FIX_EARLYCON_MEM=y
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
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_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=m
#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 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=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_HWMON is not set
# CONFIG_WATCHDOG is not set
#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
# 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 is not set
#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_ALI is not set
CONFIG_AGP_ATI=y
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_AMD64 is not set
# CONFIG_AGP_INTEL is not set
# 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=y
# 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_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_SYS_FOPS is not set
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
CONFIG_FB_VESA=y
# CONFIG_FB_EFI is not set
# CONFIG_FB_HECUBA is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I810 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_INTEL is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_CYBLA is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_GEODE is not set
# CONFIG_FB_VIRTUAL is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_CORGI is not set
# CONFIG_BACKLIGHT_PROGEAR is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_VIDEO_SELECT=y
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
#
# Sound
#
CONFIG_SOUND=y
#
# Advanced Linux Sound Architecture
#
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_RAWMIDI=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 is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
#
# Generic devices
#
CONFIG_SND_MPU401_UART=y
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_SC6000 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=y
# 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 is not set
# 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 is not set
# 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
#
# PCMCIA devices
#
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_PDAUDIOCF 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=m
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set
#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE 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=m
# CONFIG_USB_DEBUG is not set
#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_SUSPEND=y
CONFIG_USB_PERSIST=y
# CONFIG_USB_OTG is not set
#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_SPLIT_ISO=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_ISP116X_HCD=m
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
CONFIG_USB_SL811_CS=m
CONFIG_USB_R8A66597_HCD=m
#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#
#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_FREECOM=y
CONFIG_USB_STORAGE_ISD200=y
CONFIG_USB_STORAGE_DPCM=y
CONFIG_USB_STORAGE_USBAT=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
CONFIG_USB_STORAGE_ALAUDA=y
CONFIG_USB_STORAGE_KARMA=y
CONFIG_USB_LIBUSUAL=y
#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USB_MON=y
#
# USB port drivers
#
CONFIG_USB_USS720=m
#
# USB Serial Converter support
#
CONFIG_USB_SERIAL=m
# CONFIG_USB_SERIAL_GENERIC is not set
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_AIRPRIME=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
# CONFIG_USB_SERIAL_CH341 is not set
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP2101=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
# CONFIG_USB_SERIAL_KEYSPAN_MPR is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19QW is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19QI is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49WLC is not set
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
# CONFIG_USB_SERIAL_OTI6858 is not set
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_DEBUG=m
CONFIG_USB_EZUSB=y
#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_AUERSWALD=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_BERRY_CHARGE=m
CONFIG_USB_LED=m
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_PHIDGET=m
CONFIG_USB_PHIDGETKIT=m
CONFIG_USB_PHIDGETMOTORCONTROL=m
CONFIG_USB_PHIDGETSERVO=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=m
CONFIG_USB_IOWARRIOR=m
CONFIG_USB_TEST=m
#
# USB DSL modem support
#
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_PASSWORDS is not set
#
# MMC/SD Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
#
# MMC/SD Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
# CONFIG_MMC_RICOH_MMC is not set
CONFIG_MMC_WBSD=m
CONFIG_MMC_TIFM_SD=m
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC=y
#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_MM_EDAC=m
CONFIG_EDAC_AMD76X=m
CONFIG_EDAC_E7XXX=m
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82875P=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I82860=m
CONFIG_EDAC_R82600=m
CONFIG_EDAC_I5000=m
CONFIG_RTC_LIB=m
CONFIG_RTC_CLASS=m
#
# 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=m
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=m
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_STK17TA8=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_V3020=m
#
# on-CPU RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_VIRTUALIZATION=y
# CONFIG_KVM is not set
# CONFIG_LGUEST is not set
#
# Userspace I/O
#
# CONFIG_UIO is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
# CONFIG_DMIID 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 is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
# 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_MINIX_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 is not set
# CONFIG_FUSE_FS is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=1250
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-2"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
# CONFIG_NTFS_RW 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_CONFIGFS_FS=m
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# 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
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
# CONFIG_NFSD_V4 is not set
CONFIG_NFSD_TCP=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
# CONFIG_SUNRPC_BIND34 is not set
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp1250"
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-2"
CONFIG_NLS_CODEPAGE_437=m
# 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=m
# 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=m
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
# 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=m
CONFIG_DLM=m
# CONFIG_DLM_DEBUG is not set
# CONFIG_INSTRUMENTATION is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_WARN_DEPRECATED=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
CONFIG_SLUB_DEBUG_ON=y
CONFIG_DEBUG_PREEMPT=y
# CONFIG_DEBUG_RT_MUTEXES is not set
# 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 is not set
CONFIG_TRACE_IRQFLAGS=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_VM=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
CONFIG_FRAME_POINTER=y
# CONFIG_FORCED_INLINING is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES 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 is not set
CONFIG_4KSTACKS=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y
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=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_TGR192 is not set
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_XTS 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=y
# 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=y
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_SEED 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_AUTHENC is not set
# CONFIG_CRYPTO_HW is not set
#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
^ permalink raw reply
* Re: [PATCH] e1000: Dump the eeprom when a user encounters a bad checksum
From: Kok, Auke @ 2007-12-15 20:35 UTC (permalink / raw)
To: Joe Perches
Cc: Auke Kok, jeff, netdev, davem, john.ronciak, jesse.brandeburg,
Randy Dunlap
In-Reply-To: <1197682306.4861.72.camel@localhost>
Joe Perches wrote:
> On Fri, 2007-12-14 at 15:35 -0800, Auke Kok wrote:
>> + printk(KERN_ERR "/*********************/\n");
>> + printk(KERN_ERR "Current EEPROM: 0x%04x\nCalculated : 0x%04x\n",
>> + csum_old, csum_new);
>
> Multiline printks need a KERN_<level> after every newline. Perhaps:
>
> printk(KERN_ERR "Current EEPROM: 0x%04x\n"
> KERN_ERR "Calculated : 0x%04x\n",
> csum_old, csum_new);
>
>> + printk(KERN_ERR "Offset Values\n");
>> + printk(KERN_ERR "====== ======\n");
>> + for (i = 0; i < eeprom.len; i += 16)
>> + printk(KERN_ERR "0x%04x "
>> + "%02x %02x %02x %02x %02x %02x %02x %02x "
>> + "%02x %02x %02x %02x %02x %02x %02x %02x\n",
>> + i, data[i], data[i + 1], data[i + 2], data[i + 3],
>> + data[i + 4], data[i + 5], data[i + 6], data[i + 7],
>> + data[i + 8], data[i + 9], data[i + 10], data[i + 11],
>> + data[i + 12], data[i + 13], data[i + 14], data[i + 15]);
>
> print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data,
> eeprom.len, true);
>
>> + printk(KERN_ERR "Include this output when contacting your support "
>> + "provider.\n\nThis is not a software error! Something bad "
>> + "happened to your hardware or\nEEPROM image. Ignoring this "
>> + "problem could result in further problems,\npossibly loss "
>> + "of data, corruption or system hangs!\n\n");
>> + printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, "
>> + "which is invalid\nand requires you to set the proper MAC "
>> + "address manually before continuing\nto enable this network "
>> + "device.\n\n");
>> + printk(KERN_ERR "Please inspect the EEPROM dump and report the issue "
>> + "to your hardware vendor\nor Intel Customer Support: "
>> + "linux-nics@intel.com\n");
>
> multiline printks...
>
given these and Randy's comments I'll respin this and resubmit. thanks for the
comments!
Auke
^ permalink raw reply
* Re: Regression: Wireshark sees no packets in 2.6.24-rc3
From: Johannes Berg @ 2007-12-15 19:57 UTC (permalink / raw)
To: Ray Lee; +Cc: Gabriel C, Rafael J. Wysocki, netdev, LKML
In-Reply-To: <2c0942db0712150016r149d285bs8f4e1c444e71afea@mail.gmail.com>
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On Sat, 2007-12-15 at 00:16 -0800, Ray Lee wrote:
> On Dec 14, 2007 11:09 PM, Ray Lee <ray@madrabbit.org> wrote:
> > On Dec 14, 2007 6:41 PM, Gabriel C <nix.or.die@googlemail.com> wrote:
> > Correct, absolutely no traffic. So if it works for you, then either
> > it's something that got fixed between -rc3 and -rc5, or something odd
> > when I did a make oldconfig, I suppose. (Or because I'm on an x86-64
> > kernel?) Regardless, -rc5 is currently building, and I'll try it in
> > the morning.
>
> -rc5 works great. Really don't know what's different between my -rc3
> and -rc5 builds.
I have an -rc3+wireless bits which also works great wrt.
tcpdump/wireshark.
johannes
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^ permalink raw reply
* Re: [PATCH 3/3] [UDP6]: Counter increment on BH mode
From: Ingo Molnar @ 2007-12-15 18:43 UTC (permalink / raw)
To: Herbert Xu
Cc: Alexey Kuznetsov, Wang Chen, Gerrit Renker, davem, andi, netdev,
Linux Kernel Mailing List, Christoph Lameter
In-Reply-To: <20071215135851.GA29063@gondor.apana.org.au>
* Herbert Xu <herbert@gondor.apana.org.au> wrote:
> Ob Tue, Dec 04, 2007 at 12:17:23AM +1100, Herbert Xu wrote:
> >
> > Never mind, we already have that in local_t and as Alexey correctly
> > points out, USER is still going to be the expensive variant with the
> > preempt_disable (well until BH gets threaded). So how about this patch?
>
> I didn't hear any objections so here is the patch again.
>
> [SNMP]: Fix SNMP counters with PREEMPT
>
> The SNMP macros use raw_smp_processor_id() in process context which is
> illegal because the process may be preempted and then migrated to
> another CPU.
nit: please use 'invalid' instead of 'illegal'.
> This patch makes it use get_cpu/put_cpu to disable preemption.
>
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
> - (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field]++)
> + do { \
> + per_cpu_ptr(mib[1], get_cpu())->mibs[field]++; \
> + put_cpu(); \
> + } while (0)
> - (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field] += addend)
> + do { \
> + per_cpu_ptr(mib[1], get_cpu())->mibs[field] += addend; \
> + put_cpu(); \
> + } while (0)
we could perhaps introduce stat_smp_processor_id(), which signals that
the CPU id is used for statistical purposes and does not have to be
exact? In any case, your patch looks good too.
Ingo
^ permalink raw reply
* Re: 2.6.24-rc5-mm1 -- inconsistent {in-softirq-W} -> {softirq-on-R} usage.
From: Jarek Poplawski @ 2007-12-15 18:42 UTC (permalink / raw)
To: Andrew Morton
Cc: Miles Lane, linux-kernel, netdev, Ingo Molnar, Peter Zijlstra
In-Reply-To: <20071215031341.66dc0d05.akpm@linux-foundation.org>
Andrew Morton wrote, On 12/15/2007 12:13 PM:
> On Fri, 14 Dec 2007 22:58:24 -0500 "Miles Lane" <miles.lane@gmail.com> wrote:
...
>> I applied the patch and then tried my test again. This time my system
>> locked up.
>> Perhaps I should open a new thread for this, since the problem looks
>> pretty different.
>>
>> Dec 14 21:32:55 feargod kernel: process `cat' is using deprecated
>> sysctl (syscall) net.ipv6.neigh.default.retrans_time; Use
>> net.ipv6.neigh.default.retran
>> s_time_ms instead.
>> Dec 14 21:32:55 feargod kernel:
>> Dec 14 21:32:55 feargod kernel: =====================================
>> Dec 14 21:32:55 feargod kernel: [ BUG: bad unlock balance detected! ]
>> Dec 14 21:32:55 feargod kernel: -------------------------------------
>> Dec 14 21:32:55 feargod kernel: cat/6180 is trying to release lock
>> (kkkkkkk�����H3��) at:
>> Dec 14 21:32:55 feargod kernel: [packet_seq_stop+0xe/0x10]
>> packet_seq_stop+0xe/0x10
>> Dec 14 21:32:55 feargod kernel: but there are no more locks to release!
>> Dec 14 21:32:55 feargod kernel:
>> Dec 14 21:32:55 feargod kernel: other info that might help us debug this:
>> Dec 14 21:32:55 feargod kernel: 2 locks held by cat/6180:
>> Dec 14 21:32:55 feargod kernel: #0: (&p->lock){--..}, at:
>> [crypto_algapi:seq_read+0x25/0x191c1] seq_read+0x25/0x26f
>> Dec 14 21:32:55 feargod kernel: #1:
>> (&net->packet.sklist_lock){-.--}, at: [packet_seq_start+0x14/0x4d]
>> packet_seq_start+0x14/0x4d
Miles, I didn't check this yet, but since there were some considerable
changes, including locking, you could try with reverting some of these
last 3 patches to net/packet by Denis:
http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.25.git;a=history;f=net/packet/af_packet.c;h=485af5691d64270a02322925a6ccfad9d02b7f78;hb=HEAD
Regards,
Jarek P.
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^ permalink raw reply
* Re: [PATCH 3/3] [UDP6]: Counter increment on BH mode
From: Eric Dumazet @ 2007-12-15 17:03 UTC (permalink / raw)
To: Herbert Xu
Cc: Alexey Kuznetsov, Wang Chen, Gerrit Renker, davem, andi, netdev,
Linux Kernel Mailing List, Christoph Lameter, Ingo Molnar
In-Reply-To: <20071215135851.GA29063@gondor.apana.org.au>
Herbert Xu a écrit :
> Ob Tue, Dec 04, 2007 at 12:17:23AM +1100, Herbert Xu wrote:
>> Never mind, we already have that in local_t and as Alexey correctly
>> points out, USER is still going to be the expensive variant with the
>> preempt_disable (well until BH gets threaded). So how about this patch?
>
> I didn't hear any objections so here is the patch again.
>
> [SNMP]: Fix SNMP counters with PREEMPT
>
> The SNMP macros use raw_smp_processor_id() in process context
> which is illegal because the process may be preempted and then
> migrated to another CPU.
>
> This patch makes it use get_cpu/put_cpu to disable preemption.
>
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
>
> Cheers,
#define SNMP_INC_STATS_USER(mib, field) \
- (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field]++)
+ do { \
+ per_cpu_ptr(mib[1], get_cpu())->mibs[field]++; \
+ put_cpu(); \
+ } while (0)
#define SNMP_INC_STATS(mib, field) \
(per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id())->mibs[field]++)
How come you change SNMP_INC_STATS_USER() but not SNMP_INC_STATS() ?
^ permalink raw reply
* Re: 2.6.24-rc5-mm1 -- inconsistent {in-softirq-W} -> {softirq-on-R} usage.
From: Jarek Poplawski @ 2007-12-15 17:06 UTC (permalink / raw)
To: Andrew Morton
Cc: Miles Lane, linux-kernel, netdev, Ingo Molnar, Peter Zijlstra
In-Reply-To: <20071215031341.66dc0d05.akpm@linux-foundation.org>
Andrew Morton wrote, On 12/15/2007 12:13 PM:
> On Fri, 14 Dec 2007 22:58:24 -0500 "Miles Lane" <miles.lane@gmail.com> wrote:
>
>> On Dec 14, 2007 6:36 PM, Andrew Morton <akpm@linux-foundation.org> wrote:
>>> On Fri, 14 Dec 2007 17:13:21 -0500
>>> "Miles Lane" <miles.lane@gmail.com> wrote:
...
>>>> Pid: 6944, comm: cat Not tainted (2.6.24-rc5-mm1 #26)
...
>>>> note: cat[6944] exited with preempt_count 4
...
>> Dec 14 21:32:55 feargod kernel: cat/6180 is trying to release lock
...
> Can you suggest a way in which others can reproduce this?
Buy a cat?
Jarek P.
^ permalink raw reply
* Re: [PATCH 2/4] [CORE]: datagram: mem_scheudle functions
From: Herbert Xu @ 2007-12-15 15:32 UTC (permalink / raw)
To: Hideo AOKI
Cc: David Miller, netdev, Takahiro Yasui, Masami Hiramatsu,
Satoshi Oshima, billfink, Andi Kleen, Evgeniy Polyakov,
Stephen Hemminger, yoshfuji, Yumiko Sugita
In-Reply-To: <476362D8.4070807@redhat.com>
On Sat, Dec 15, 2007 at 12:15:04AM -0500, Hideo AOKI wrote:
> This patch includes changes in network core sub system for memory
> accounting.
>
> Memory scheduling, charging, uncharging and reclaiming functions are
> added. These functions use sk_forward_alloc to store socket local
> accounting. They also need to use lock to keep consistency of
> sk_forward_alloc and memory_allocated. They currently support only
> datagram protocols.
Thanks for the patch. I think it's generally on the right track
but there's still a few issues with the implementation.
> + spin_lock_irqsave(&sk->sk_lock.slock, flags);
Please use bh_lock_sock since this must never be used from an
IRQ handler.
> +static inline void sk_mem_reclaim(struct sock *sk)
> +{
> + if (sk->sk_type == SOCK_DGRAM)
> + sk_datagram_mem_reclaim(sk);
> +}
Please get rid of these wrappers since we should only get here
for datagram protocols.
> +static inline int sk_account_wmem_charge(struct sock *sk, int size)
> +{
> + unsigned long flags;
> +
> + /* account if protocol supports memory accounting. */
> + if (!sk->sk_prot->memory_allocated || sk->sk_type != SOCK_DGRAM)
> + return 1;
> +
> + spin_lock_irqsave(&sk->sk_lock.slock, flags);
> + if (sk_datagram_wmem_schedule(sk, size)) {
> + sk->sk_forward_alloc -= size;
> + spin_unlock_irqrestore(&sk->sk_lock.slock, flags);
> + return 1;
> + }
> + spin_unlock_irqrestore(&sk->sk_lock.slock, flags);
> + return 0;
> +}
This is probably too big to inline.
> +static inline int sk_account_rmem_charge(struct sock *sk, int size)
> +{
> + unsigned long flags;
> +
> + /* account if protocol supports memory accounting. */
> + if (!sk->sk_prot->memory_allocated || sk->sk_type != SOCK_DGRAM)
> + return 1;
> +
> + spin_lock_irqsave(&sk->sk_lock.slock, flags);
> + if (sk_datagram_rmem_schedule(sk, size)) {
> + sk->sk_forward_alloc -= size;
> + spin_unlock_irqrestore(&sk->sk_lock.slock, flags);
> + return 1;
> + }
> + spin_unlock_irqrestore(&sk->sk_lock.slock, flags);
> + return 0;
> +}
Why are we duplicating the rmem/wmem versions when they're identical?
> -int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
> +int sock_queue_rcv_skb_with_owner(struct sock *sk, struct sk_buff *skb,
> + void set_owner_r(struct sk_buff *nskb,
> + struct sock* nsk))
Just make a new function for this rather than playing with function
pointers.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* Re: [Bugme-new] [Bug 9543] New: RTNL: assertion failed at net/ipv6/addrconf.c (2164)/RTNL: assertion failed at net/ipv4/devinet.c (1055)
From: Andy Gospodarek @ 2007-12-15 15:09 UTC (permalink / raw)
To: Herbert Xu
Cc: Krzysztof Oledzki, Jay Vosburgh, Andrew Morton, bugme-daemon,
shemminger, davem, netdev
In-Reply-To: <20071215041052.GA25324@gondor.apana.org.au>
On Dec 14, 2007 11:10 PM, Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Fri, Dec 14, 2007 at 05:47:22PM -0500, Andy Gospodarek wrote:
> >
> > I'm guessing if we go back to using a write-lock for bond->lock this
> > will go back to working again, but I'm not totally convinced since there
> > are plenty of places where we used a read-lock with it.
>
> Sorry I forgot to cc you earlier Andy.
>
> But to fix this you need make sure that all read locks on bond->lock
> in process context disable BH. This is because at least one write
> lock can be taken from BH context.
I agree with you completely, Herbet, which is why I was surprised that
my first apparently did not resolve the issue. I felt it should
have....
> You don't need to turn the read locks into write locks however.
>
> This is also something that we can undo once the set_multicast
> interface has been fixed to not take the tx lock.
>
> Cheers,
> --
> Visit Openswan at http://www.openswan.org/
> Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
>
^ permalink raw reply
* Re: [PATCH 2/4] datagram: mem_scheudle functions
From: Herbert Xu @ 2007-12-15 14:45 UTC (permalink / raw)
To: Hideo AOKI
Cc: netdev, David Miller, Satoshi Oshima, Bill Fink, Andi Kleen,
Evgeniy Polyakov, Stephen Hemminger, yoshfuji, Yumiko Sugita
In-Reply-To: <47549B05.5090507@redhat.com>
On Mon, Dec 03, 2007 at 07:10:45PM -0500, Hideo AOKI wrote:
>
> Because we have to call wmem_schedule function in ip_append_data()
> which is used by several protocols both stream and datagram.
> I just thought adding the sk_wmem_schedule() was only way to call
> proper function from ip_append_data().
ip_append_data can't possibly work for stream protocols. So
which stream protocol is calling it?
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* Re: [PATCH 3/3] [UDP6]: Counter increment on BH mode
From: Herbert Xu @ 2007-12-15 13:58 UTC (permalink / raw)
To: Alexey Kuznetsov
Cc: Wang Chen, Gerrit Renker, davem, andi, netdev,
Linux Kernel Mailing List, Christoph Lameter, Ingo Molnar
In-Reply-To: <20071203131723.GA30312@gondor.apana.org.au>
Ob Tue, Dec 04, 2007 at 12:17:23AM +1100, Herbert Xu wrote:
>
> Never mind, we already have that in local_t and as Alexey correctly
> points out, USER is still going to be the expensive variant with the
> preempt_disable (well until BH gets threaded). So how about this patch?
I didn't hear any objections so here is the patch again.
[SNMP]: Fix SNMP counters with PREEMPT
The SNMP macros use raw_smp_processor_id() in process context
which is illegal because the process may be preempted and then
migrated to another CPU.
This patch makes it use get_cpu/put_cpu to disable preemption.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
diff --git a/include/net/snmp.h b/include/net/snmp.h
index ea206bf..9444b54 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -23,6 +23,7 @@
#include <linux/cache.h>
#include <linux/snmp.h>
+#include <linux/smp.h>
/*
* Mibs are stored in array of unsigned long.
@@ -137,7 +138,10 @@ struct linux_mib {
#define SNMP_INC_STATS_OFFSET_BH(mib, field, offset) \
(per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field + (offset)]++)
#define SNMP_INC_STATS_USER(mib, field) \
- (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field]++)
+ do { \
+ per_cpu_ptr(mib[1], get_cpu())->mibs[field]++; \
+ put_cpu(); \
+ } while (0)
#define SNMP_INC_STATS(mib, field) \
(per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id())->mibs[field]++)
#define SNMP_DEC_STATS(mib, field) \
@@ -145,6 +149,9 @@ struct linux_mib {
#define SNMP_ADD_STATS_BH(mib, field, addend) \
(per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field] += addend)
#define SNMP_ADD_STATS_USER(mib, field, addend) \
- (per_cpu_ptr(mib[1], raw_smp_processor_id())->mibs[field] += addend)
+ do { \
+ per_cpu_ptr(mib[1], get_cpu())->mibs[field] += addend; \
+ put_cpu(); \
+ } while (0)
#endif
^ permalink raw reply related
* Re: Reproducible data corruption with sendfile+vsftp - splice regression?
From: Holger Hoffstaette @ 2007-12-15 13:43 UTC (permalink / raw)
To: linux-kernel; +Cc: netdev
In-Reply-To: <20071206184426.GA32599@electric-eye.fr.zoreil.com>
On Thu, 06 Dec 2007 19:44:26 +0100, Francois Romieu wrote:
> Holger Hoffstaette <holger@wizards.de> : [...]
>> Maybe turning off sendfile or NAPI just lead to random success - so far
>> it really looks like tso on the r8169 is the common cause.
>
> TSO on the r8169 is the magic switch but the regression makes imvho more
> sense from a VM pov:
>
> - the corrupted file has the same size as the expected file
> - the corrupted file exhibits holes which come as a multiple of 4096 bytes
> (8*4k, 2 places, there may be more)
> - the r8169 driver does not know what a page is
> - the 8169 hardware has a small 8192 bytes Tx buffer
>
> It would be nice if someone could do a sendfile + vsftp test with TSO on a
> different hardware. While I could not reproduce the corruption when simply
> downloading a file that I had copied on the server with scp, it triggered
> almost immediately after I copied it locally and tried to download the
> copy.
I tested 2.6.24-rc5 on my T60 (Intel e1000 built with NAPI) and installed
vsftp/apache with sendfile and enabled all offload options incl. TSO.
Repeated downloads of >500 MB with ftp or wget over the NIC onto ram- or
physical disk gives no corruption whatsoever. Speed of download to ramdisk
is a nice continuous 125 MB/sec.
Looks like the r8169 or the driver after all..
thanks
Holger
^ permalink raw reply
* Re: [patch 2/4] net: use mutex_is_locked() for ASSERT_RTNL()
From: Herbert Xu @ 2007-12-15 13:10 UTC (permalink / raw)
To: Andrew Morton; +Cc: David Miller, netdev, Eric W. Biederman
In-Reply-To: <20071215024810.20b8a5ae.akpm@linux-foundation.org>
On Sat, Dec 15, 2007 at 02:48:10AM -0800, Andrew Morton wrote:
>
> When Eric said
>
> > Way way deep in mutex debugging on the slowpath there is a unreadable
> > and incomprehensible WARN_ON in muxtex_trylock that will trigger if
> > you have 10 tons of debugging turned on, and you are in,
> > interrupt context, and you manage to hit the slow path. I think that
> > is a pretty unlikely scenario.
>
> I think he's still right. That's if the warning which he managed to find
> even still exists.
Well at the very start he said:
: When mutex debugging is on taking a mutex complains if we are not
: allowed to sleep. At that point we have called netif_tx_lock_bh
: so we are clearly not allowed to sleep. Arguably this is not a
: problem for mutex_trylock.
This is what threw me off as it implied that we were warning about
ASSERT_RTNL calls in any atomic context, including those with just
soft IRQs disabled, which is an important distinction for the
networking subsystem.
Had he said that it was just IRQ handlers rather than soft IRQs
then we wouldn't be having this discussion now :)
> I think the change which Eric proposed is a good one: it converts
> ASSERT_RTNL() from an atomic rmw which dirties a cacheline which will
> sometimes be owned by a different CPU into a plain old read. It's going to
> make ASSERT_RTNL() heaps cheaper.
I agree. Although paths using ASSERT_RTNL shouldn't be performance
critical since the RTNL should only be held for control operations
as opposed to data transport.
> Now as a separate issue we (ie: you) need to work out what _other_ things
> you want ASSERT_RTNL to check apart from "rtnl must be held".
Since we have now established that ASSERT_RTNL never actually
warned about usage on paths with BH off, I think Eric's original
patch is fine as it is and I owe him an apology.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply
* [PATCH] sky2: check pci_register_driver() error
From: Akinobu Mita @ 2007-12-15 11:58 UTC (permalink / raw)
To: netdev; +Cc: Stephen Hemminger
Check pci_register_driver() error and clean up debugfs entries
if error happened.
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---
drivers/net/sky2.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
Index: 2.6-git/drivers/net/sky2.c
===================================================================
--- 2.6-git.orig/drivers/net/sky2.c
+++ 2.6-git/drivers/net/sky2.c
@@ -4426,8 +4426,15 @@ static struct pci_driver sky2_driver = {
static int __init sky2_init_module(void)
{
+ int err;
+
sky2_debug_init();
- return pci_register_driver(&sky2_driver);
+ err = pci_register_driver(&sky2_driver);
+ if (err) {
+ sky2_debug_cleanup();
+ return err;
+ }
+ return 0;
}
static void __exit sky2_cleanup_module(void)
^ permalink raw reply
* Re: 2.6.24-rc5-mm1 -- inconsistent {in-softirq-W} -> {softirq-on-R} usage.
From: Andrew Morton @ 2007-12-15 11:13 UTC (permalink / raw)
To: Miles Lane; +Cc: linux-kernel, netdev, Ingo Molnar, Peter Zijlstra
In-Reply-To: <a44ae5cd0712141958o10d9a320h3b8173019ac6b0eb@mail.gmail.com>
On Fri, 14 Dec 2007 22:58:24 -0500 "Miles Lane" <miles.lane@gmail.com> wrote:
> On Dec 14, 2007 6:36 PM, Andrew Morton <akpm@linux-foundation.org> wrote:
> > On Fri, 14 Dec 2007 17:13:21 -0500
> > "Miles Lane" <miles.lane@gmail.com> wrote:
> >
> >
> > > Sorry Andrew, I don't know who to forward this problem to.
> > >
> > > I tried running: find /proc | xargs cat
> > > and got this:
> > >
> > > =================================
> > > [ INFO: inconsistent lock state ]
> > > 2.6.24-rc5-mm1 #26
> > > ---------------------------------
> > > inconsistent {in-softirq-W} -> {softirq-on-R} usage.
> > > cat/6944 [HC0[0]:SC0[0]:HE1:SE1] takes:
> > > BUG: unable to handle kernel paging request at virtual address 0f1eff0b
> > > printing ip: c01fe64d *pde = 00000000
> > > Oops: 0000 [#1] PREEMPT SMP
> > > last sysfs file: /sys/block/sda/sda3/stat
> > > Modules linked in: aes_generic i915 drm rfcomm l2cap bluetooth
> > > cpufreq_stats cpufreq_conservative cpufreq_performance sbs sbshc
> > > dm_crypt sbp2 parport_pc lp parport pcmcia arc4 ecb crypto_blkcipher
> > > cryptomgr crypto_algapi tifm_7xx1 tifm_core yenta_socket
> > > rsrc_nonstatic pcmcia_core iwl3945 iTCO_wdt iTCO_vendor_support
> > > watchdog_core watchdog_dev snd_hda_intel mac80211 snd_pcm_oss
> > > snd_mixer_oss cfg80211 snd_pcm sky2 snd_seq_dummy snd_seq_oss
> > > snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer
> > > snd_seq_device snd soundcore snd_page_alloc shpchp pci_hotplug
> > > firewire_ohci firewire_core crc_itu_t ata_generic piix ide_core
> > >
> > > Pid: 6944, comm: cat Not tainted (2.6.24-rc5-mm1 #26)
> > > EIP: 0060:[<c01fe64d>] EFLAGS: 00210097 CPU: 0
> > > EIP is at strnlen+0x9/0x1c
> > > EAX: 0f1eff0b EBX: 0f1eff0b ECX: 0f1eff0b EDX: fffffffe
> > > ESI: c05b74f6 EDI: d6267d94 EBP: d6267cc8 ESP: d6267cc8
> > > DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> > > Process cat (pid: 6944, ti=d6267000 task=d5a09000 task.ti=d6267000)
> > > Stack: d6267cfc c01fdd22 00000400 c05b74f4 00000001 c05b78f4 00000000 ffffffff
> > > ffffffff c048f503 00000400 d5a09000 00000002 d6267d0c c01fdf41 d6267d94
> > > db68c04a d6267d74 c012ae81 d6267d94 00000028 c05b89f7 00200046 00000000
> > > Call Trace:
> > > [<c0108eb2>] show_trace_log_lvl+0x12/0x25
> > > [<c0108f4f>] show_stack_log_lvl+0x8a/0x95
> > > [<c0108fe4>] show_registers+0x8a/0x1bd
> > > [<c010922f>] die+0x118/0x1dc
> > > [<c03cf706>] do_page_fault+0x5a4/0x681
> > > [<c03cdd72>] error_code+0x72/0x78
> > > [<c01fdd22>] vsnprintf+0x277/0x40e
> > > [<c01fdf41>] vscnprintf+0xe/0x1d
> > > [<c012ae81>] vprintk+0xcb/0x2f3
> > > [<c012b0be>] printk+0x15/0x17
> > > [<c0145e55>] print_lock_name+0x4e/0xa2
> > > [<c0146099>] print_lock+0xe/0x3a
> > > [<c01464cf>] print_usage_bug+0xbc/0x117
> > > [<c0146fb6>] mark_lock+0x2e7/0x3fe
> > > [<c0147b9a>] __lock_acquire+0x498/0xbf4
> > > [<c014836c>] lock_acquire+0x76/0x9d
> > > [<c03cd6d2>] _read_lock+0x23/0x32
> > > [<c03491ae>] sock_i_ino+0x14/0x30
> > > [<c03c88ed>] packet_seq_show+0x22/0x75
> > > [<c019b41a>] seq_read+0x19d/0x26f
> > > [<c01b0ded>] proc_reg_read+0x60/0x74
> > > [<c01854aa>] vfs_read+0x8a/0x106
> > > [<c01858a8>] sys_read+0x3b/0x60
> > > [<c0107cea>] sysenter_past_esp+0x6b/0xc1
> > > =======================
> > > Code: 01 00 00 00 4f 89 fa 5f 89 d0 5d c3 55 85 c9 89 e5 57 89 c7 89
> > > d0 74 05 f2 ae 75 01 4f 89 f8 5f 5d c3 55 89 c1 89 e5 89 c8 eb 06 <80>
> > > 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 5d c3 90 90 90 55 83
> > > EIP: [<c01fe64d>] strnlen+0x9/0x1c SS:ESP 0068:d6267cc8
> > > note: cat[6944] exited with preempt_count 4
> >
> > I'd say you hit a networking locking bug and then when trying to report
> > that bug, lockdep crashed.
> >
> > The networking bug looks to be around sock_i_ino()'s taking of
> > sk_callback_lock with softirq's enabled. Perhaps this will fix it.
> >
> > diff -puN net/core/sock.c~a net/core/sock.c
> > --- a/net/core/sock.c~a
> > +++ a/net/core/sock.c
> > @@ -1115,9 +1115,9 @@ int sock_i_uid(struct sock *sk)
> > {
> > int uid;
> >
> > - read_lock(&sk->sk_callback_lock);
> > + read_lock_bh(&sk->sk_callback_lock);
> > uid = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : 0;
> > - read_unlock(&sk->sk_callback_lock);
> > + read_unlock_bh(&sk->sk_callback_lock);
> > return uid;
> > }
> >
> > @@ -1125,9 +1125,9 @@ unsigned long sock_i_ino(struct sock *sk
> > {
> > unsigned long ino;
> >
> > - read_lock(&sk->sk_callback_lock);
> > + read_lock_bh(&sk->sk_callback_lock);
> > ino = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_ino : 0;
> > - read_unlock(&sk->sk_callback_lock);
> > + read_unlock_bh(&sk->sk_callback_lock);
> > return ino;
> > }
> >
> > _
> >
> >
>
> I applied the patch and then tried my test again. This time my system
> locked up.
> Perhaps I should open a new thread for this, since the problem looks
> pretty different.
>
> Dec 14 21:32:55 feargod kernel: process `cat' is using deprecated
> sysctl (syscall) net.ipv6.neigh.default.retrans_time; Use
> net.ipv6.neigh.default.retran
> s_time_ms instead.
> Dec 14 21:32:55 feargod kernel:
> Dec 14 21:32:55 feargod kernel: =====================================
> Dec 14 21:32:55 feargod kernel: [ BUG: bad unlock balance detected! ]
> Dec 14 21:32:55 feargod kernel: -------------------------------------
> Dec 14 21:32:55 feargod kernel: cat/6180 is trying to release lock
> (kkkkkkk�����H3��) at:
> Dec 14 21:32:55 feargod kernel: [packet_seq_stop+0xe/0x10]
> packet_seq_stop+0xe/0x10
> Dec 14 21:32:55 feargod kernel: but there are no more locks to release!
> Dec 14 21:32:55 feargod kernel:
> Dec 14 21:32:55 feargod kernel: other info that might help us debug this:
> Dec 14 21:32:55 feargod kernel: 2 locks held by cat/6180:
> Dec 14 21:32:55 feargod kernel: #0: (&p->lock){--..}, at:
> [crypto_algapi:seq_read+0x25/0x191c1] seq_read+0x25/0x26f
> Dec 14 21:32:55 feargod kernel: #1:
> (&net->packet.sklist_lock){-.--}, at: [packet_seq_start+0x14/0x4d]
> packet_seq_start+0x14/0x4d
Bit of a mess. We don't know whether lockdep is broken or if networking is
just feeding it garbage. Or both.
My suspicion is that you've hit bad breakage in networking and lockdep just
isn't sufficiently robust to handle what it's being given.
Can you suggest a way in which others can reproduce this?
What happens if you run the same test with CONFIG_LOCKDEP=n?
^ permalink raw reply
* Re: [NETFILTER] xt_hashlimit : speedups hash_dst()
From: Eric Dumazet @ 2007-12-15 11:04 UTC (permalink / raw)
To: Jarek Poplawski; +Cc: Patrick McHardy, netfilter-devel, netdev
In-Reply-To: <4763AF65.4070200@gmail.com>
Jarek Poplawski a écrit :
> Eric Dumazet wrote, On 12/14/2007 10:37 PM:
>
>> Jarek Poplawski a écrit :
>>> Eric Dumazet wrote, On 12/14/2007 12:09 PM:
>>> ...
>>>
>>>> + /*
>>>> + * Instead of returning hash % ht->cfg.size (implying a divide)
>>>> + * we return the high 32 bits of the (hash * ht->cfg.size) that will
>>>> + * give results between [0 and cfg.size-1] and same hash distribution,
>>>> + * but using a multiply, less expensive than a divide
>>>> + */
>>>> + return ((u64)hash * ht->cfg.size) >> 32;
>>> Are we sure of the same hash distribution? Probably I miss something,
>>> but: if this 'hash' is well distributed on 32 bits, and ht->cfg.size
>>> is smaller than 32 bits, e.g. 256 (8 bits), then this multiplication
>>> moves to the higher 32 of u64 only max. 8 bits of the most significant
>>> byte, and the other three bytes are never used, while division is
>>> always affected by all four bytes...
>> Not sure what you are saying... but if size=256, then, yes, we want a final
>> result between 0 and 255, so three bytes are nul.
>
> Eric, it would be nice to acknowledge David's suggestion that this hash
> size is always power of two here, because otherwise at least your words
> about the same hash distribution according to the "%" variant could be
> wrong (but I don't say the final result would be wrong). Maybe I mix
> up these sizes, but it seems this could be set by a user, and I didn't
> find anything about this power of two necessity?
>
size is not a power of two here.
I prefer to let admins chose their size, since it makes attacker life more
difficult :)
For example, I can tell you I have a server, were size is between 2.000.000
and 3.500.000, I dont want to be forced to use 2097152
A multiply is cheap, at least on current hardware.
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^ permalink raw reply
* Re: [patch 2/4] net: use mutex_is_locked() for ASSERT_RTNL()
From: Andrew Morton @ 2007-12-15 10:48 UTC (permalink / raw)
To: Herbert Xu; +Cc: David Miller, netdev
In-Reply-To: <20071215061021.GA26247@gondor.apana.org.au>
On Sat, 15 Dec 2007 14:10:21 +0800 Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Fri, Dec 14, 2007 at 09:44:18PM -0800, Andrew Morton wrote:
> >
> > That sounds like a bug in mutex_trylock() to me.
>
> I was relying on
>
> http://kerneltrap.org/mailarchive/linux-netdev/2007/9/28/325129
>
> which seems to be a bogus claim now that I actually look at the
> source code. So in that case I'm OK with your patch as long as
> it warns about hard IRQ usage.
When Eric said
> Way way deep in mutex debugging on the slowpath there is a unreadable
> and incomprehensible WARN_ON in muxtex_trylock that will trigger if
> you have 10 tons of debugging turned on, and you are in,
> interrupt context, and you manage to hit the slow path. I think that
> is a pretty unlikely scenario.
I think he's still right. That's if the warning which he managed to find
even still exists.
I think the change which Eric proposed is a good one: it converts
ASSERT_RTNL() from an atomic rmw which dirties a cacheline which will
sometimes be owned by a different CPU into a plain old read. It's going to
make ASSERT_RTNL() heaps cheaper.
<looks at mutex_is_locked(), rofls at "static inline fastcall", fixes it>
Now as a separate issue we (ie: you) need to work out what _other_ things
you want ASSERT_RTNL to check apart from "rtnl must be held".
If you want to check that no locks are held (which I think is a bit weird,
but whatever) then add might_sleep().
If you want to check that we're not in interrupt context or whatever, then
add the checks and be happy. might_sleep() will of course check for
in_interrupt(), in_irq(), etc so if you go with a might_sleep() then
nothing else needs to be added.
While doing this I'd also suggest that the thing should be uninlined -
it'll probably generate less text and it'll give considerably more
flexibility for adding new debug fetures. Ones which might be controlled at
compile time or runtime. ie:
void __assert_rtnl(const char *file, int line);
#define ASSERT_RTNL() __assert_rtnl(__FILE__, __LINE__)
^ permalink raw reply
* Re: [NETFILTER] xt_hashlimit : speedups hash_dst()
From: Jarek Poplawski @ 2007-12-15 10:41 UTC (permalink / raw)
To: Eric Dumazet; +Cc: Patrick McHardy, netfilter-devel, netdev
In-Reply-To: <4762F78B.80302@cosmosbay.com>
Eric Dumazet wrote, On 12/14/2007 10:37 PM:
> Jarek Poplawski a écrit :
>> Eric Dumazet wrote, On 12/14/2007 12:09 PM:
>> ...
>>
>>> + /*
>>> + * Instead of returning hash % ht->cfg.size (implying a divide)
>>> + * we return the high 32 bits of the (hash * ht->cfg.size) that will
>>> + * give results between [0 and cfg.size-1] and same hash distribution,
>>> + * but using a multiply, less expensive than a divide
>>> + */
>>> + return ((u64)hash * ht->cfg.size) >> 32;
>> Are we sure of the same hash distribution? Probably I miss something,
>> but: if this 'hash' is well distributed on 32 bits, and ht->cfg.size
>> is smaller than 32 bits, e.g. 256 (8 bits), then this multiplication
>> moves to the higher 32 of u64 only max. 8 bits of the most significant
>> byte, and the other three bytes are never used, while division is
>> always affected by all four bytes...
>
> Not sure what you are saying... but if size=256, then, yes, we want a final
> result between 0 and 255, so three bytes are nul.
Eric, it would be nice to acknowledge David's suggestion that this hash
size is always power of two here, because otherwise at least your words
about the same hash distribution according to the "%" variant could be
wrong (but I don't say the final result would be wrong). Maybe I mix
up these sizes, but it seems this could be set by a user, and I didn't
find anything about this power of two necessity?
Regards,
Jarek P.
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^ permalink raw reply
* Re: Reproducible data corruption with sendfile+vsftp - splice regression?
From: Holger Hoffstaette @ 2007-12-15 10:24 UTC (permalink / raw)
To: netdev; +Cc: linux-kernel
In-Reply-To: <pan.2007.12.13.02.19.40.200510@wizards.de>
On Thu, 13 Dec 2007 03:19:43 +0100, Holger Hoffstaette wrote:
> I have now gone back to enable TSO since vsftp with sendfile really seems
> to be the only app that causes this. I have simply set it to
> use_sendfile=NO and no corruption occurs at all; the machine is stable and
> fast.
In the good tradition of proving myself wrong I can reliably create
corrupted files by wget-ting from apache (with sendfile enabled) as
well, so no more TSO after all. No TSO, no corruption.
The same also happens on a different machine with a r8169 (same model).
Tickless kernel makes no difference either. Shot in the dark, but hey..
Holger
^ permalink raw reply
* [PATCH take2] [AX25] circular locking with AX25 connection timeout
From: Jarek Poplawski @ 2007-12-15 10:18 UTC (permalink / raw)
To: Bernard Pidoux; +Cc: David Miller, Ralf Baechle DL5RB, Linux Netdev List
In-Reply-To: <476303C8.2060507@ccr.jussieu.fr>
On Fri, Dec 14, 2007 at 11:29:28PM +0100, Bernard Pidoux wrote:
> Hi,
>
> This patch cancels a circular locking conflict that appeared with a timeout
> of an AX25 connection.
>
> signed off by Jarek Poplawski
One spurious space less here, and maybe a few more words to the changelog.
Regards,
Jarek P.
---------------->
Subject: [PATCH] [NET] AX25: locking dependencies fix in ax25_disconnect
Bernard Pidoux reported these lockdep warnings:
[ INFO: possible irq lock inversion dependency detected ]
2.6.23.1 #1
---------------------------------------------------------
fpac/4933 just changed the state of lock:
(slock-AF_AX25){--..}, at: [<d8be3312>] ax25_disconnect+0x46/0xaf
[ax25]
but this lock was taken by another, soft-irq-safe lock in the past:
(ax25_list_lock){-+..}
and interrupts could create inverse lock ordering between them.
[...]
[ INFO: inconsistent lock state ]
2.6.23.1 #1
---------------------------------
inconsistent {in-softirq-W} -> {softirq-on-W} usage.
ax25_call/4005 [HC0[0]:SC0[0]:HE1:SE1] takes:
(slock-AF_AX25){-+..}, at: [<d8b79312>] ax25_disconnect+0x46/0xaf [ax25]
[...]
This means slock-AF_AX25 could be taken both from softirq and process
context with softirqs enabled, so it's endangered itself, but also makes
ax25_list_lock vulnerable. It was not 100% verified if the real lockup
can happen, but this fix isn't very costly and looks safe anyway.
(It was tested by Bernard with 2.6.23.9 and 2.6.24-rc5 kernels.)
Reported_by: Bernard Pidoux <pidoux@ccr.jussieu.fr>
Tested_by: Bernard Pidoux <pidoux@ccr.jussieu.fr>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
---
diff -Nurp linux-2.6.24-rc2-/net/ax25/ax25_subr.c linux-2.6.24-rc2+/net/ax25/ax25_subr.c
--- linux-2.6.24-rc2-/net/ax25/ax25_subr.c 2007-10-09 22:31:38.000000000 +0200
+++ linux-2.6.24-rc2+/net/ax25/ax25_subr.c 2007-11-28 11:51:12.000000000 +0100
@@ -279,6 +279,7 @@ void ax25_disconnect(ax25_cb *ax25, int
ax25_link_failed(ax25, reason);
if (ax25->sk != NULL) {
+ local_bh_disable();
bh_lock_sock(ax25->sk);
ax25->sk->sk_state = TCP_CLOSE;
ax25->sk->sk_err = reason;
@@ -288,5 +289,6 @@ void ax25_disconnect(ax25_cb *ax25, int
sock_set_flag(ax25->sk, SOCK_DEAD);
}
bh_unlock_sock(ax25->sk);
+ local_bh_enable();
}
}
^ permalink raw reply
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