A reliable kernel panic (3.6.2) and system crash when visiting a particular website

A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

Hello,

I'm running vanilla Linux 3.6.2 x86 on top of CentOS 6.3 userspace.

Every time when I enter the chat roulette website, right click anywhere and choose "Settings",
 my PC crashes (with or without NVIDIA drivers running, it happens even when I'm running Vesa).

Web browser: google-chrome-stable-22.0.1229.94-161065.i386.rpm
OS: Linux 3.6.2 vanilla x86
CPU: Intel Core i5 2500 (non-overclocked)
GCC: 4.7.2 vanilla

The latest crash:

Oct 20 07:15:22 localhost kernel: [  224.293756] Modules linked in: pppoe pppox ppp_synctty ppp_async crc_ccitt ppp_generic slhc ipv6 nf_conntrack_ftp nf_conntrack_netbios_ns nf_conntrack_broadcast xt_LOG xt_limit nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_pkttype ipt_ULOG xt_owner xt_multiport iptable_filter ip_tables x_tables w83627ehf adt7475 hwmon_vid vboxpci(O) 
vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc fuse hid_generic snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi uvcvideo videobuf2_core videodev 
videobuf2_vmalloc videobuf2_memops usbhid hid sr_mod cdrom coretemp aesni_intel ablk_helper cryptd aes_i586 aes_generic microcode agpgart pcspkr snd_hda_codec_realtek 
snd_hda_intel snd_hda_codec snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd snd_page_alloc i2c_i801 sg xhci_hcd fan ehci_hcd e1000e evdev [last unloaded: nvidia]

Oct 20 07:15:22 localhost kernel: [  224.293811] Pid: 2569, comm: console-kit-dae Tainted: P           O 3.6.2-ic #2
Oct 20 07:15:22 localhost kernel: [  224.293811] Call Trace:
Oct 20 07:15:22 localhost kernel: [  224.293813]  [<c102e6bd>] warn_slowpath_common+0x6d/0xa0
Oct 20 07:15:22 localhost kernel: [  224.293817]  [<c10209eb>] ? default_send_IPI_mask_logical+0x9b/0xd0
Oct 20 07:15:22 localhost kernel: [  224.293819]  [<c10209eb>] ? default_send_IPI_mask_logical+0x9b/0xd0
Oct 20 07:15:22 localhost kernel: [  224.293822]  [<c102e76e>] warn_slowpath_fmt+0x2e/0x30
Oct 20 07:15:22 localhost kernel: [  224.293824]  [<c10209eb>] default_send_IPI_mask_logical+0x9b/0xd0
Oct 20 07:15:22 localhost kernel: [  224.293827]  [<c101eb90>] native_send_call_func_ipi+0x40/0x60
Oct 20 07:15:22 localhost kernel: [  224.293830]  [<c106aa6a>] smp_call_function_many+0x16a/0x200
Oct 20 07:15:22 localhost kernel: [  224.293834]  [<c102b116>] native_flush_tlb_others+0x26/0x30
Oct 20 07:15:22 localhost kernel: [  224.293836]  [<c102b422>] flush_tlb_page+0x82/0xd0
Oct 20 07:15:22 localhost kernel: [  224.293839]  [<c102a3a1>] ptep_set_access_flags+0x51/0x60
Oct 20 07:15:22 localhost kernel: [  224.293841]  [<c109e030>] handle_pte_fault+0x380/0xc40
Oct 20 07:15:22 localhost kernel: [  224.293846]  [<c109f6d4>] handle_mm_fault+0x1c4/0x240
Oct 20 07:15:22 localhost kernel: [  224.293848]  [<c1026870>] ? vmalloc_sync_all+0x10/0x10
Oct 20 07:15:22 localhost kernel: [  224.293852]  [<c1026967>] do_page_fault+0xf7/0x3e0
Oct 20 07:15:22 localhost kernel: [  224.293855]  [<c1051782>] ? finish_task_switch+0x42/0xa0
Oct 20 07:15:22 localhost kernel: [  224.293858]  [<c1052c1b>] ? schedule_tail+0x1b/0x90
Oct 20 07:15:22 localhost kernel: [  224.293861]  [<c1026870>] ? vmalloc_sync_all+0x10/0x10
Oct 20 07:15:22 localhost kernel: [  224.293863]  [<c12f950a>] error_code+0x5a/0x60
Oct 20 07:15:22 localhost kernel: [  224.293867]  [<c1026870>] ? vmalloc_sync_all+0x10/0x10
Oct 20 07:15:22 localhost kernel: [  224.293871] ---[ end trace c30478a5e27a7255 ]---

Another crash:

Oct 20 07:08:21 localhost kernel: [  146.992435] ------------[ cut here ]------------
Oct 20 07:08:21 localhost kernel: [  146.992444] WARNING: at arch/x86/kernel/apic/ipi.c:109 default_send_IPI_mask_logical+0x9b/0xd0()
Oct 20 07:08:21 localhost kernel: [  146.992447] Hardware name: System Product Name
Oct 20 07:08:21 localhost kernel: [  146.992448] empty IPI mask
Oct 20 07:08:21 localhost kernel: [  146.992450] Modules linked in: pppoe pppox ppp_synctty ppp_async crc_ccitt ppp_generic slhc ipv6 nf_conntrack_ftp nf_con
ntrack_netbios_ns nf_conntrack_broadcast xt_LOG xt_limit nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_pkttype ipt_ULOG xt_owner xt_mul
tiport iptable_filter ip_tables x_tables w83627ehf adt7475 hwmon_vid vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc fuse hid_generic uvcvideo
videobuf2_core videodev videobuf2_vmalloc videobuf2_memops snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi usbhid hid sg coretemp aesni_intel ablk_helper
 cryptd aes_i586 aes_generic microcode sr_mod cdrom pcspkr i2c_i801 xhci_hcd snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_seq_oss snd_seq_midi_event
 snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd snd_page_alloc ehci_hcd nvidia(PO) agpgart e1000e fan evdev
Oct 20 07:08:21 localhost kernel: [  146.992503] Pid: 2451, comm: Chrome_ProcessL Tainted: P           O 3.6.2-ic #2
Oct 20 07:08:21 localhost kernel: [  146.992504] Call Trace:
Oct 20 07:08:21 localhost kernel: [  146.992509]  [<c102e6bd>] warn_slowpath_common+0x6d/0xa0
Oct 20 07:08:21 localhost kernel: [  146.992512]  [<c10209eb>] ? default_send_IPI_mask_logical+0x9b/0xd0
Oct 20 07:08:21 localhost kernel: [  146.992514]  [<c10209eb>] ? default_send_IPI_mask_logical+0x9b/0xd0
Oct 20 07:08:21 localhost kernel: [  146.992517]  [<c102e76e>] warn_slowpath_fmt+0x2e/0x30
Oct 20 07:08:21 localhost kernel: [  146.992519]  [<c10209eb>] default_send_IPI_mask_logical+0x9b/0xd0
Oct 20 07:08:21 localhost kernel: [  146.992523]  [<c101eb90>] native_send_call_func_ipi+0x40/0x60
Oct 20 07:08:21 localhost kernel: [  146.992527]  [<c106aa6a>] smp_call_function_many+0x16a/0x200
Oct 20 07:08:21 localhost kernel: [  146.992530]  [<c102b116>] native_flush_tlb_others+0x26/0x30
Oct 20 07:08:21 localhost kernel: [  146.992532]  [<c102b422>] flush_tlb_page+0x82/0xd0
Oct 20 07:08:21 localhost kernel: [  146.992536]  [<c10aa13f>] ptep_clear_flush+0x1f/0x30
Oct 20 07:08:21 localhost kernel: [  146.992540]  [<c109e239>] handle_pte_fault+0x589/0xc40
Oct 20 07:08:21 localhost kernel: [  146.992543]  [<c10bfc7f>] ? pipe_write+0x37f/0x490
Oct 20 07:08:21 localhost kernel: [  146.992546]  [<c109f6d4>] handle_mm_fault+0x1c4/0x240
Oct 20 07:08:21 localhost kernel: [  146.992550]  [<c1026870>] ? vmalloc_sync_all+0x10/0x10
Oct 20 07:08:21 localhost kernel: [  146.992553]  [<c1026967>] do_page_fault+0xf7/0x3e0
Oct 20 07:08:21 localhost kernel: [  146.992556]  [<c10b7ddf>] ? vfs_write+0x11f/0x170
Oct 20 07:08:21 localhost kernel: [  146.992558]  [<c10b5abf>] ? filp_close+0x4f/0x80
Oct 20 07:08:21 localhost kernel: [  146.992561]  [<c10b5b5d>] ? sys_close+0x6d/0xc0
Oct 20 07:08:21 localhost kernel: [  146.992564]  [<c1026870>] ? vmalloc_sync_all+0x10/0x10
Oct 20 07:08:21 localhost kernel: [  146.992568]  [<c12f950a>] error_code+0x5a/0x60
Oct 20 07:08:21 localhost kernel: [  146.992571]  [<c1026870>] ? vmalloc_sync_all+0x10/0x10
Oct 20 07:08:21 localhost kernel: [  146.992573] ---[ end trace ac116d5460229ce4 ]---

Yet another crash:

Oct 20 07:03:25 localhost kernel: [   84.600996] chrome: Corrupted page table at address 46e15000
Oct 20 07:03:25 localhost kernel: [   84.601001] *pdpt = 0000000000000000 *pde = f000eef3f000eef3
Oct 20 07:03:25 localhost kernel: [   84.601006] Bad pagetable: 000f [#1] PREEMPT SMP
Oct 20 07:03:25 localhost kernel: [   84.601010] Modules linked in: pppoe pppox ppp_synctty ppp_async crc_ccitt ppp_generic slhc ipv6 nf_conntrack_ftp nf_con
ntrack_netbios_ns nf_conntrack_broadcast xt_LOG xt_limit nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_pkttype ipt_ULOG xt_owner xt_mul
tiport iptable_filter ip_tables x_tables w83627ehf adt7475 hwmon_vid vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc fuse hid_generic uvcvideo
videobuf2_core videodev videobuf2_vmalloc videobuf2_memops snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi usbhid hid coretemp aesni_intel ablk_helper cr
yptd aes_i586 aes_generic microcode sg sr_mod cdrom pcspkr i2c_i801 fan e1000e snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_seq_oss snd_seq_midi_eve
nt snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd snd_page_alloc xhci_hcd evdev ehci_hcd nvidia(PO) agpgart
Oct 20 07:03:25 localhost kernel: [   84.601072] Pid: 2359, comm: chrome Tainted: P           O 3.6.2-ic #2 System manufacturer System Product Name/P8P67 PRO
Oct 20 07:03:25 localhost kernel: [   84.601075] EIP: 0073:[<b4791468>] EFLAGS: 00010202 CPU: 2
Oct 20 07:03:25 localhost kernel: [   84.601079] EIP is at 0xb4791468
Oct 20 07:03:25 localhost kernel: [   84.601081] EAX: 46e15000 EBX: b785fff4 ECX: 00000007 EDX: 00000057
Oct 20 07:03:25 localhost kernel: [   84.601083] ESI: bfc48348 EDI: 46e15000 EBP: bfc482f8 ESP: bfc482e0
Oct 20 07:03:25 localhost kernel: [   84.601086]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
Oct 20 07:03:25 localhost kernel: [   84.601088] Process chrome (pid: 2359, ti=dcd88000 task=f267d360 task.ti=dcd88000)
Oct 20 07:03:25 localhost kernel: [   84.601089]
Oct 20 07:03:25 localhost kernel: [   84.601091] EIP: [<b4791468>] 0xb4791468 SS:ESP 007b:bfc482e0
Oct 20 07:03:25 localhost kernel: [   84.601097] ---[ end trace 2fe495949bdb4add ]---

I wonder what can cause it.

I will try 3.5.x soon.

Best wishes,

Artem

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sat, Oct 20, 2012 at 12:06:55PM +0000, Artem S. Tashkinov wrote:
> Hello,
> 
> I'm running vanilla Linux 3.6.2 x86 on top of CentOS 6.3 userspace.
> 
> Every time when I enter the chat roulette website, right click anywhere and choose "Settings",
>  my PC crashes (with or without NVIDIA drivers running, it happens even when I'm running Vesa).
> 
> Web browser: google-chrome-stable-22.0.1229.94-161065.i386.rpm
> OS: Linux 3.6.2 vanilla x86
> CPU: Intel Core i5 2500 (non-overclocked)
> GCC: 4.7.2 vanilla
> 
> The latest crash:
> 
> Oct 20 07:15:22 localhost kernel: [  224.293756] Modules linked in: pppoe pppox ppp_synctty ppp_async crc_ccitt ppp_generic slhc ipv6 nf_conntrack_ftp nf_conntrack_netbios_ns nf_conntrack_broadcast xt_LOG xt_limit nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_pkttype ipt_ULOG xt_owner xt_multiport iptable_filter ip_tables x_tables w83627ehf adt7475 hwmon_vid vboxpci(O) 
> vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc fuse hid_generic snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi uvcvideo videobuf2_core videodev 
> videobuf2_vmalloc videobuf2_memops usbhid hid sr_mod cdrom coretemp aesni_intel ablk_helper cryptd aes_i586 aes_generic microcode agpgart pcspkr snd_hda_codec_realtek 
> snd_hda_intel snd_hda_codec snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd snd_page_alloc i2c_i801 sg xhci_hcd fan ehci_hcd e1000e evdev [last unloaded: nvidia]
> 
> Oct 20 07:15:22 localhost kernel: [  224.293811] Pid: 2569, comm: console-kit-dae Tainted: P           O 3.6.2-ic #2

Yeah, your kernel is tainted with a proprietary module (vbox*, etc). Can
you reproduce your corruptions (this is what it looks like) without that
module?

Thanks.

-- 
Regards/Gruss,
    Boris.

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

[-- Attachment #1: Type: text/plain, Size: 491 bytes --]

On Oct 20, 2012, Borislav Petkov wrote: 

> Yeah, your kernel is tainted with a proprietary module (vbox*, etc). Can
> you reproduce your corruptions (this is what it looks like) without that
> module?

Yes, I can reproduce this panic with zero proprietary/non-free modules loaded.

The problem is the kernel doesn't even print a kernel panic - the
system just freezes completely - cursor in a text console stops blinking.

I have no means to debug it using a serial console - what can I do?

[-- Attachment #2: .config --]
[-- Type: application/octet-stream, Size: 71546 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/i386 3.6.0-rc5 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
# CONFIG_X86_64 is not set
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf32-i386"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
# CONFIG_NEED_DMA_MAP_STATE is not set
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CPU_AUTOPROBE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ZONE_DMA32 is not set
# CONFIG_AUDIT_ARCH is not set
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_X86_32_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_32_LAZY_GS=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-ecx -fcall-saved-edx"
CONFIG_ARCH_CPU_PROBE_RELEASE=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION="-ic"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_FHANDLE is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_KTIME_SCALAR=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y

#
# RCU Subsystem
#
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_RCU_FAST_NO_HZ is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_BOOST is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP 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_ANON_INODES=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y

#
# GCOV-based kernel profiling
#
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
# CONFIG_SYSV68_PARTITION is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_UNINLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
# CONFIG_INLINE_READ_UNLOCK is not set
# CONFIG_INLINE_READ_UNLOCK_BH is not set
# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
# CONFIG_INLINE_WRITE_UNLOCK is not set
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_FREEZER=y

#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
# CONFIG_X86_MPPARSE is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_EXTENDED_PLATFORM is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_X86_32_IRIS is not set
CONFIG_SCHED_OMIT_FRAME_POINTER=y
# CONFIG_PARAVIRT_GUEST is not set
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST 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 is not set
# 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_MWINCHIP3D is not set
# CONFIG_MELAN 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_MCORE2=y
# CONFIG_MATOM is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
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_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=5
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_IOMMU_HELPER is not set
CONFIG_NR_CPUS=8
# CONFIG_SCHED_SMT is not set
# CONFIG_SCHED_MC is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
# CONFIG_X86_ANCIENT_MCE is not set
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_VM86=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
CONFIG_MICROCODE=m
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=m
CONFIG_X86_CPUID=m
# CONFIG_NOHIGHMEM is not set
# CONFIG_HIGHMEM4G is not set
CONFIG_HIGHMEM64G=y
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
CONFIG_X86_PAE=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_MEMORY_FAILURE is not set
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_CLEANCACHE is not set
# CONFIG_HIGHPTE is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
# CONFIG_EFI is not set
CONFIG_SECCOMP=y
# CONFIG_CC_STACKPROTECTOR is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
CONFIG_HZ_300=y
# CONFIG_HZ_1000 is not set
CONFIG_HZ=300
CONFIG_SCHED_HRTICK=y
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x100000
CONFIG_HOTPLUG_CPU=y
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
# CONFIG_ACPI_PROCFS_POWER is not set
# CONFIG_ACPI_EC_DEBUGFS is not set
# CONFIG_ACPI_PROC_EVENT is not set
# CONFIG_ACPI_AC is not set
# CONFIG_ACPI_BATTERY is not set
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=m
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
# CONFIG_ACPI_THERMAL is not set
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=m
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_APEI is not set
# CONFIG_SFI is not set
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y

#
# x86 CPU frequency scaling drivers
#
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=y
# CONFIG_X86_POWERNOW_K6 is not set
# CONFIG_X86_POWERNOW_K7 is not set
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_GX_SUSPMOD is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_SPEEDSTEP_ICH is not set
# CONFIG_X86_SPEEDSTEP_SMI is not set
# CONFIG_X86_P4_CLOCKMOD is not set
# CONFIG_X86_CPUFREQ_NFORCE2 is not set
# CONFIG_X86_LONGRUN is not set
# CONFIG_X86_LONGHAUL is not set
# CONFIG_X86_E_POWERSAVER is not set

#
# shared options
#
# CONFIG_X86_SPEEDSTEP_LIB is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y

#
# 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_PCI_CNB20LE_QUIRK is not set
CONFIG_PCIEPORTBUS=y
CONFIG_PCIEAER=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEAER_INJECT is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEBUG=y
# CONFIG_PCIEASPM_DEFAULT is not set
CONFIG_PCIEASPM_POWERSAVE=y
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
CONFIG_HT_IRQ=y
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_IOAPIC=y
CONFIG_PCI_LABEL=y
CONFIG_ISA_DMA_API=y
# CONFIG_ISA is not set
# CONFIG_SCx200 is not set
# CONFIG_ALIX is not set
# CONFIG_NET5501 is not set
# CONFIG_GEOS is not set
CONFIG_AMD_NB=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set
# CONFIG_RAPIDIO is not set

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_HAVE_AOUT=y
# CONFIG_BINFMT_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_HAVE_TEXT_POKE_SMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
# CONFIG_IP_ROUTE_MULTIPATH is not set
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# 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=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_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_IPV6=m
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_SIT is not set
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_ACCT=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_PROCFS=y
# CONFIG_NF_CONNTRACK_EVENTS is not set
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CT_PROTO_GRE=m
# CONFIG_NF_CT_PROTO_SCTP is not set
# CONFIG_NF_CT_PROTO_UDPLITE is not set
# CONFIG_NF_CONNTRACK_AMANDA is not set
CONFIG_NF_CONNTRACK_FTP=m
# CONFIG_NF_CONNTRACK_H323 is not set
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
# CONFIG_NF_CONNTRACK_SNMP is not set
CONFIG_NF_CONNTRACK_PPTP=m
# CONFIG_NF_CONNTRACK_SANE is not set
# CONFIG_NF_CONNTRACK_SIP is not set
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NF_CT_NETLINK_TIMEOUT is not set
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_QUEUE_CT=y
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m

#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=y
CONFIG_IP_NF_IPTABLES=m
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_RPFILTER is not set
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_IP_NF_TARGET_NETMAP is not set
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
# CONFIG_NF_NAT_AMANDA is not set
CONFIG_NF_NAT_PPTP=m
# CONFIG_NF_NAT_H323 is not set
# CONFIG_NF_NAT_SIP is not set
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_ARPTABLES is not set

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_NF_CONNTRACK_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA 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_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
# CONFIG_BT_BNEP_MC_FILTER is not set
# CONFIG_BT_BNEP_PROTO_FILTER is not set
CONFIG_BT_HIDP=m

#
# Bluetooth device drivers
#
CONFIG_BT_HCIBTUSB=m
# CONFIG_BT_HCIUART is not set
# CONFIG_BT_HCIBCM203X is not set
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
# CONFIG_BT_HCIVHCI is not set
# CONFIG_BT_MRVL is not set
CONFIG_BT_ATH3K=m
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_CMA is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX 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=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_CRYPTOLOOP is not set

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_NVME 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_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
CONFIG_EEPROM_LEGACY=m
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# 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=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
CONFIG_SCSI_SCAN_ASYNC=y

#
# 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_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# 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_ATP867X 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_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR 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_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
CONFIG_MII=y
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=m
# CONFIG_E1000 is not set
CONFIG_E1000E=m
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
# CONFIG_NET_VENDOR_I825XX is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_PHYLIB is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
# CONFIG_PPP_MULTILINK is not set
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
# CONFIG_SLIP is not set
CONFIG_SLHC=m

#
# 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_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_XTKBD 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_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
CONFIG_INPUT_PCSPKR=m
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
# CONFIG_INPUT_WISTRON_BTNS is not set
# CONFIG_INPUT_ATLAS_BTNS is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_KXTJ9 is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_CMA3000 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=m
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=m
CONFIG_SERIAL_8250_PNP=m
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_MFD_HSU is not set
CONFIG_SERIAL_CORE=m
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set
# CONFIG_MWAVE is not set
# CONFIG_PC8736x_GPIO is not set
# CONFIG_NSC_GPIO is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
CONFIG_HANGCHECK_TIMER=y
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=m
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_INTEL_MID is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_SCx200_ACB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_POWER_AVS=y
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_CORETEMP=m
# CONFIG_SENSORS_IT87 is not set
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_APPLESMC is not set

#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
CONFIG_SENSORS_ATK0110=m
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_CS5535 is not set
# CONFIG_LPC_SCH is not set
# CONFIG_LPC_ICH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_REGULATOR is not set
CONFIG_MEDIA_SUPPORT=m

#
# Multimedia core support
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_MEDIA_CONTROLLER is not set
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_V4L2_COMMON=m

#
# Media drivers
#
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEOBUF2_CORE=m
CONFIG_VIDEOBUF2_MEMOPS=m
CONFIG_VIDEOBUF2_VMALLOC=m
CONFIG_VIDEO_CAPTURE_DRIVERS=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y

#
# Audio decoders, processors and mixers
#

#
# RDS decoders
#

#
# Video decoders
#

#
# Video and audio decoders
#

#
# MPEG video encoders
#

#
# Video encoders
#

#
# Camera sensor devices
#

#
# Flash devices
#

#
# Video improvement chips
#

#
# Miscelaneous helper chips
#
CONFIG_VIDEO_VIVI=m
CONFIG_V4L_USB_DRIVERS=y

#
# Webcam devices
#
CONFIG_USB_VIDEO_CLASS=m
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
# CONFIG_USB_GSPCA is not set
# CONFIG_USB_PWC is not set
# CONFIG_VIDEO_CPIA2 is not set
# CONFIG_USB_ZR364XX is not set
# CONFIG_USB_STKWEBCAM is not set
# CONFIG_USB_S2255 is not set
# CONFIG_USB_SN9C102 is not set

#
# Webcam and/or TV USB devices
#
# CONFIG_VIDEO_EM28XX is not set
# CONFIG_V4L_PLATFORM_DRIVERS is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set

#
# Graphics support
#
CONFIG_AGP=m
# 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=m
# 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_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=4
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_NOUVEAU 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_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
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_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_WMT_GE_ROPS is not set
# 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_N411 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_I740 is not set
# CONFIG_FB_I810 is not set
# CONFIG_FB_LE80578 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_VIA 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_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_GEODE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_EXYNOS_VIDEO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=256
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# 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
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
# 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
CONFIG_SND_VMASTER=y
CONFIG_SND_KCTL_JACK=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_RAWMIDI_SEQ=m
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
CONFIG_SND_EMU10K1_SEQ=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=300
CONFIG_SND_PCI=y
# 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_ASIHPI 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_AW2 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_OXYGEN 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_CTXFI 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_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
CONFIG_SND_EMU10K1=m
# 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_HDA_PREALLOC_SIZE=64
# CONFIG_SND_HDA_HWDEP is not set
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=1
CONFIG_SND_HDA_INPUT_JACK=y
# CONFIG_SND_HDA_PATCH_LOADER is not set
CONFIG_SND_HDA_CODEC_REALTEK=y
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
# CONFIG_SND_HDA_CODEC_VIA is not set
CONFIG_SND_HDA_CODEC_HDMI=y
# CONFIG_SND_HDA_CODEC_CIRRUS is not set
# CONFIG_SND_HDA_CODEC_CONEXANT is not set
# CONFIG_SND_HDA_CODEC_CA0110 is not set
# CONFIG_SND_HDA_CODEC_CA0132 is not set
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
# CONFIG_SND_HDA_CODEC_SI3054 is not set
CONFIG_SND_HDA_GENERIC=y
CONFIG_SND_HDA_POWER_SAVE=y
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=300
# 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_LOLA is not set
# CONFIG_SND_LX6464ES 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_SIS7019 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_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_USX2Y is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_US122L is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m

#
# HID support
#
CONFIG_HID=m
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=m

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=m
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=m
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=m
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=m
# CONFIG_HID_LOGITECH_DJ is not set
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
# CONFIG_HID_MAGICMOUSE is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set

#
# USB HID support
#
CONFIG_USB_HID=m
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_ARCH_HAS_XHCI=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
# CONFIG_USB_OTG is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
# CONFIG_USB_XHCI_HCD_DEBUGGING is not set
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# 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_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_CHIPIDEA is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK 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_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_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# 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_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM 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_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set

#
# USB Physical Layer drivers
#
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
# 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
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_BALLOON is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACERHDF is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_ACPI_CMPC is not set
CONFIG_INTEL_IPS=m
# CONFIG_IBM_RTL is not set
# CONFIG_XO15_EBOOK is not set
# CONFIG_SAMSUNG_Q10 is not set

#
# Hardware Spinlock drivers
#
CONFIG_CLKSRC_I8253=y
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
CONFIG_IOMMU_SUPPORT=y
# CONFIG_INTEL_IOMMU is not set

#
# Remoteproc drivers (EXPERIMENTAL)
#

#
# Rpmsg drivers (EXPERIMENTAL)
#
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y

#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
# CONFIG_DMI_SYSFS is not set
# CONFIG_ISCSI_IBFT_FIND is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_EXT4_FS_XATTR=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_XFS_RT is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_EXPORTFS=m
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

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

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=866
CONFIG_FAT_DEFAULT_IOCHARSET="utf8"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# 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_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
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 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=y
# 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=m
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=m
# 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=m
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
CONFIG_UNUSED_SYMBOLS=y
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_HIGHMEM is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_VERBOSE is not set
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
# CONFIG_KMEMCHECK is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_STRICT_DEVMEM is not set
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
# CONFIG_EARLY_PRINTK_DBGP is not set
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_DEBUG_SET_MODULE_RONX=y
# CONFIG_DEBUG_NX_TEST is not set
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=m
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_ABLK_HELPER_X86=m

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32C_INTEL is not set
# CONFIG_CRYPTO_GHASH is not set
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_AES_586=m
CONFIG_CRYPTO_AES_NI_INTEL=m
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SALSA20_586 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SERPENT_SSE2_586 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_586 is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
CONFIG_DDR=y

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sat, Oct 20, 2012 at 05:41:49PM +0000, Artem S. Tashkinov wrote:
> On Oct 20, 2012, Borislav Petkov wrote: 
> 
> > Yeah, your kernel is tainted with a proprietary module (vbox*, etc). Can
> > you reproduce your corruptions (this is what it looks like) without that
> > module?
> 
> Yes, I can reproduce this panic with zero proprietary/non-free modules loaded.
> 
> The problem is the kernel doesn't even print a kernel panic - the
> system just freezes completely - cursor in a text console stops blinking.
> 
> I have no means to debug it using a serial console - what can I do?

Ok, here's what you can try:

* You say this happens with google chrome. Does it happen if you use
another browser: firefox, etc?

* Can you build a 64-bit kernel and try the same with it? The 32-bit
userspace should work in compat mode just fine.

* Can you run memtest on your machine and check whether your DIMMs
aren't generating ECC errors? Are your DIMMs ECC, btw?

* What about netconsole? You only need another machine on the same
network: Documentation/networking/netconsole.txt.

* boot with "pause_on_oops=600" on the kernel command line to stop the
machine for 600 secs after the first oops happens. Then try to make a
photo of the screen. Make sure to disable X or to be on a text console
so that you can see the oops.

* Try enabling a bunch of debugging options in "Kernel hacking". More
specifically,

CONFIG_DETECT_HUNG_TASK
CONFIG_DEBUG_PREEMPT
CONFIG_DEBUG_SPINLOCK
CONFIG_DEBUG_MUTEXES
CONFIG_DEBUG_LOCK_ALLOC
CONFIG_PROVE_LOCKING
CONFIG_PROVE_RCU
CONFIG_DEBUG_ATOMIC_SLEEP
CONFIG_DEBUG_BUGVERBOSE
CONFIG_DEBUG_INFO
CONFIG_DEBUG_VM
CONFIG_DEBUG_VIRTUAL
CONFIG_DEBUG_MEMORY_INIT
CONFIG_DEBUG_LIST
CONFIG_X86_VERBOSE_BOOTUP
CONFIG_DEBUG_RODATA
...

I hope those should scream in case something goes awry.

HTH.

-- 
Regards/Gruss,
    Boris.

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Pavel Machek]

On Sat 2012-10-20 17:41:49, Artem S. Tashkinov wrote:
> On Oct 20, 2012, Borislav Petkov wrote: 
> 
> > Yeah, your kernel is tainted with a proprietary module (vbox*, etc). Can
> > you reproduce your corruptions (this is what it looks like) without that
> > module?
> 
> Yes, I can reproduce this panic with zero proprietary/non-free modules loaded.
> 
> The problem is the kernel doesn't even print a kernel panic - the
> system just freezes completely - cursor in a text console stops
> blinking.

bugtraq? :-).

If remote website can crash your Linux, that's quite significant news.

(Cc-ed netdev@ and security@ ... this may be important).
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

On Oct 21, 2012, Borislav Petkov wrote: 

> Ok, here's what you can try:
> 
> * You say this happens with google chrome. Does it happen if you use
> another browser: firefox, etc?
> 
> * Can you build a 64-bit kernel and try the same with it? The 32-bit
> userspace should work in compat mode just fine.
> 
> * Can you run memtest on your machine and check whether your DIMMs
> aren't generating ECC errors? Are your DIMMs ECC, btw?
> ...


I can reproduce this problem in a virtual machine, which means I have found a real
kernel or GCC bug. Alas, VirtualBox 4.2.2 hangs entirely when I run this virtual machine -
I've never seen anything like that. Windows 7 64 bit which hosts this VirtualBox cannot
even kill a VirtualBox instance.

Unfortunately even though I run the kernel with "console=ttyS0,115200 console=tty0"
parameters they don't help - I see no panic messages on a "virtual" serial port, which
looks like we've got a very deep freeze.

Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

Hi,

I can only reproduce this panic when my USB webcamera is plugged in - when
I click settings in Adobe Flash it sends some commands to my USB webcam using,
presumably, Video4Linux API calls which cause a kernel hard crash.

Your kernel debug features haven't helped at all, even the virtual machine
crashes the way I cannot get any information from it - under Windows 7 64
VirtualBox becomes an unkillable process.

I've no idea what's crashing - it can be the kernel itself, or some of v4l or usb
modules.

Artem

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sat, Oct 20, 2012 at 10:32:28PM +0200, Pavel Machek wrote:
> On Sat 2012-10-20 17:41:49, Artem S. Tashkinov wrote:
> > On Oct 20, 2012, Borislav Petkov wrote: 
> > 
> > > Yeah, your kernel is tainted with a proprietary module (vbox*, etc). Can
> > > you reproduce your corruptions (this is what it looks like) without that
> > > module?
> > 
> > Yes, I can reproduce this panic with zero proprietary/non-free modules loaded.
> > 
> > The problem is the kernel doesn't even print a kernel panic - the
> > system just freezes completely - cursor in a text console stops
> > blinking.
> 
> bugtraq? :-).
> 
> If remote website can crash your Linux, that's quite significant news.
> 
> (Cc-ed netdev@ and security@ ... this may be important).

I don't think that's the problem - I rather suspect the fact that he's
using virtualbox which is causing random corruptions by writing to
arbitrary locations.

Artem,

please remove virtualbox completely from your system, rebuild the kernel
and make sure the virtualbox kernel modules don't get loaded - simply
delete them so that they are completely gone; *and* *then* retest again.

Thanks.

-- 
Regards/Gruss,
    Boris.

Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

You don't get me - I have *no* VirtualBox (or any proprietary) modules running
- but I can reproduce this problem using *the same system running under* VirtualBox
in Windows 7 64.

It's almost definitely either a USB driver bug or video4linux driver bug:

I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
https://lkml.org/lkml/2012/10/20/35
https://lkml.org/lkml/2012/10/20/148

Here are  the last lines from my dmesg (with usbmon loaded):

[  292.164833] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0002
[  292.168091] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 00100a 0  ACK POWER sig=se0 PEC CSC
[  292.172063] hub 1-0:1.0: port 1, status 0100, change 0003, 12 Mb/s
[  292.174883] usb 1-1: USB disconnect, device number 2
[  292.178045] usb 1-1: unregistering device
[  292.183539] usb 1-1: unregistering interface 1-1:1.0
[  292.197034] usb 1-1: unregistering interface 1-1:1.1
[  292.204317] usb 1-1: unregistering interface 1-1:1.2
[  292.234519] usb 1-1: unregistering interface 1-1:1.3
[  292.236175] usb 1-1: usb_disable_device nuking all URBs
[  292.364429] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x100
[  294.364279] hub 1-0:1.0: hub_suspend
[  294.366045] usb usb1: bus auto-suspend, wakeup 1
[  294.367375] ehci_hcd 0000:00:1f.5: suspend root hub
[  296.501084] usb usb1: usb wakeup-resume
[  296.508311] usb usb1: usb auto-resume
[  296.509833] ehci_hcd 0000:00:1f.5: resume root hub
[  296.560149] hub 1-0:1.0: hub_resume
[  296.562240] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 001003 0  ACK POWER sig=se0 CSC CONNECT
[  296.566141] hub 1-0:1.0: port 1: status 0501 change 0001
[  296.670413] hub 1-0:1.0: state 7 ports 8 chg 0002 evt 0000
[  296.673222] hub 1-0:1.0: port 1, status 0501, change 0000, 480 Mb/s
[  297.311720] usb 1-1: new high-speed USB device number 3 using ehci_hcd
[  300.547237] usb 1-1: skipped 1 descriptor after configuration
[  300.549443] usb 1-1: skipped 4 descriptors after interface
[  300.552273] usb 1-1: skipped 2 descriptors after interface
[  300.556499] usb 1-1: skipped 1 descriptor after endpoint
[  300.559392] usb 1-1: skipped 2 descriptors after interface
[  300.560960] usb 1-1: skipped 1 descriptor after endpoint
[  300.562169] usb 1-1: skipped 2 descriptors after interface
[  300.563440] usb 1-1: skipped 1 descriptor after endpoint
[  300.564639] usb 1-1: skipped 2 descriptors after interface
[  300.565828] usb 1-1: skipped 2 descriptors after endpoint
[  300.567084] usb 1-1: skipped 9 descriptors after interface
[  300.569205] usb 1-1: skipped 1 descriptor after endpoint
[  300.570484] usb 1-1: skipped 53 descriptors after interface
[  300.595843] usb 1-1: default language 0x0409
[  300.602503] usb 1-1: USB interface quirks for this device: 2
[  300.605700] usb 1-1: udev 3, busnum 1, minor = 2
[  300.606959] usb 1-1: New USB device found, idVendor=046d, idProduct=081d
[  300.610298] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
[  300.613742] usb 1-1: SerialNumber: 48C5D2B0
[  300.617703] usb 1-1: usb_probe_device
[  300.620594] usb 1-1: configuration #1 chosen from 1 choice
[  300.639218] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
[  300.640736] snd-usb-audio 1-1:1.0: usb_probe_interface
[  300.642307] snd-usb-audio 1-1:1.0: usb_probe_interface - got id
[  301.050296] usb 1-1: adding 1-1:1.1 (config #1, interface 1)
[  301.054897] usb 1-1: adding 1-1:1.2 (config #1, interface 2)
[  301.056934] uvcvideo 1-1:1.2: usb_probe_interface
[  301.058072] uvcvideo 1-1:1.2: usb_probe_interface - got id
[  301.059395] uvcvideo: Found UVC 1.00 device <unnamed> (046d:081d)
[  301.090173] input: UVC Camera (046d:081d) as /devices/pci0000:00/0000:00:1f.5/usb1/1-1/1-1:1.2/input/input7
[  301.111289] usb 1-1: adding 1-1:1.3 (config #1, interface 3)
[  301.131207] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
[  301.137066] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
[  301.156451] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
[  301.158310] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
[  301.160238] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
[  301.196606] set resolution quirk: cval->res = 384
[  371.309569] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[  390.729568] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
f5ade900 2296555[  390.730023] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
437 S Ii:1:003:7[  390.736394] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
 -115:128 16 <
f5ade900 2296566256 C Ii:1:003:7 -2:128 0
[  391.100896] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
[  391.103188] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
f5ade900 2296926929 S Ii:1:003:7[  391.104889] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
 -115:128 16 <
f5ade900 2296937889 C Ii:1:003:7 -2:128 0
f5272300 2310382508 S Co:1:003:0 s 01 0b 0004 0001 0000 0
f5272300 2310407888 C Co:1:003:0 0 0
f5272300 2310408051 S Co:1:003:0 s 22 01 0100 0086 0003 3 = 80bb00
f5272300 2310412456 C Co:1:003:0 0 3 >
f5272300 2310412521 S Ci:1:003:0 s a2 81 0100 0086 0003 3 <
f5272300 2310415909 C Ci:1:003:0 0 0
f5272300 2310418133 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f5272600 2310418219 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f52720c0 2310418239 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f5272a80 2310418247 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f5272480 2310418256 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f52723c0 2310418264 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f5272d80 2310418272 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
f5272b40 2310418280 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <

Hard freeze with 100% CPU usage at this point as if some driver got into an
infinite loop or something.

All debug options from https://lkml.org/lkml/2012/10/20/116 are enabled, but
serial console is empty.

Best wishes,

Artem


On Oct 21, 2012, Borislav Petkov wrote: 

> I don't think that's the problem - I rather suspect the fact that he's
> using virtualbox which is causing random corruptions by writing to
> arbitrary locations.
> 
> 
> 
> please remove virtualbox completely from your system, rebuild the kernel
> and make sure the virtualbox kernel modules don't get loaded - simply
> delete them so that they are completely gone; *and* *then* retest again.

Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sat, Oct 20, 2012 at 11:15:17PM +0000, Artem S. Tashkinov wrote:
> You don't get me - I have *no* VirtualBox (or any proprietary) modules
> running

Ok, good. We got that out of the way - I wanted to make sure after you
replied with two other possibilities of the system freezing.

> - but I can reproduce this problem using *the same system running
> under* VirtualBox in Windows 7 64.

That's windoze as host and linux as a guest, correct?

If so, that's virtualbox's problem, I'd say.

> It's almost definitely either a USB driver bug or video4linux driver
> bug:

And you're assuming that because the freeze happens when using your usb
webcam, correct? And not otherwise?

Maybe you can describe in more detail what exactly you're doing so that
people could try to reproduce your issue.

> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
> https://lkml.org/lkml/2012/10/20/35
> https://lkml.org/lkml/2012/10/20/148

Yes, good idea. Maybe the folks there have some more ideas how to debug
this.

I'm leaving in the rest for reference.

What should be pointed out, though, is that you don't have any more
random corruptions causing oopses now that virtualbox is gone. The
freeze below is a whole another issue.

Thanks.

> Here are  the last lines from my dmesg (with usbmon loaded):
> 
> [  292.164833] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0002
> [  292.168091] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 00100a 0  ACK POWER sig=se0 PEC CSC
> [  292.172063] hub 1-0:1.0: port 1, status 0100, change 0003, 12 Mb/s
> [  292.174883] usb 1-1: USB disconnect, device number 2
> [  292.178045] usb 1-1: unregistering device
> [  292.183539] usb 1-1: unregistering interface 1-1:1.0
> [  292.197034] usb 1-1: unregistering interface 1-1:1.1
> [  292.204317] usb 1-1: unregistering interface 1-1:1.2
> [  292.234519] usb 1-1: unregistering interface 1-1:1.3
> [  292.236175] usb 1-1: usb_disable_device nuking all URBs
> [  292.364429] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x100
> [  294.364279] hub 1-0:1.0: hub_suspend
> [  294.366045] usb usb1: bus auto-suspend, wakeup 1
> [  294.367375] ehci_hcd 0000:00:1f.5: suspend root hub
> [  296.501084] usb usb1: usb wakeup-resume
> [  296.508311] usb usb1: usb auto-resume
> [  296.509833] ehci_hcd 0000:00:1f.5: resume root hub
> [  296.560149] hub 1-0:1.0: hub_resume
> [  296.562240] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 001003 0  ACK POWER sig=se0 CSC CONNECT
> [  296.566141] hub 1-0:1.0: port 1: status 0501 change 0001
> [  296.670413] hub 1-0:1.0: state 7 ports 8 chg 0002 evt 0000
> [  296.673222] hub 1-0:1.0: port 1, status 0501, change 0000, 480 Mb/s
> [  297.311720] usb 1-1: new high-speed USB device number 3 using ehci_hcd
> [  300.547237] usb 1-1: skipped 1 descriptor after configuration
> [  300.549443] usb 1-1: skipped 4 descriptors after interface
> [  300.552273] usb 1-1: skipped 2 descriptors after interface
> [  300.556499] usb 1-1: skipped 1 descriptor after endpoint
> [  300.559392] usb 1-1: skipped 2 descriptors after interface
> [  300.560960] usb 1-1: skipped 1 descriptor after endpoint
> [  300.562169] usb 1-1: skipped 2 descriptors after interface
> [  300.563440] usb 1-1: skipped 1 descriptor after endpoint
> [  300.564639] usb 1-1: skipped 2 descriptors after interface
> [  300.565828] usb 1-1: skipped 2 descriptors after endpoint
> [  300.567084] usb 1-1: skipped 9 descriptors after interface
> [  300.569205] usb 1-1: skipped 1 descriptor after endpoint
> [  300.570484] usb 1-1: skipped 53 descriptors after interface
> [  300.595843] usb 1-1: default language 0x0409
> [  300.602503] usb 1-1: USB interface quirks for this device: 2
> [  300.605700] usb 1-1: udev 3, busnum 1, minor = 2
> [  300.606959] usb 1-1: New USB device found, idVendor=046d, idProduct=081d
> [  300.610298] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
> [  300.613742] usb 1-1: SerialNumber: 48C5D2B0
> [  300.617703] usb 1-1: usb_probe_device
> [  300.620594] usb 1-1: configuration #1 chosen from 1 choice
> [  300.639218] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
> [  300.640736] snd-usb-audio 1-1:1.0: usb_probe_interface
> [  300.642307] snd-usb-audio 1-1:1.0: usb_probe_interface - got id
> [  301.050296] usb 1-1: adding 1-1:1.1 (config #1, interface 1)
> [  301.054897] usb 1-1: adding 1-1:1.2 (config #1, interface 2)
> [  301.056934] uvcvideo 1-1:1.2: usb_probe_interface
> [  301.058072] uvcvideo 1-1:1.2: usb_probe_interface - got id
> [  301.059395] uvcvideo: Found UVC 1.00 device <unnamed> (046d:081d)
> [  301.090173] input: UVC Camera (046d:081d) as /devices/pci0000:00/0000:00:1f.5/usb1/1-1/1-1:1.2/input/input7
> [  301.111289] usb 1-1: adding 1-1:1.3 (config #1, interface 3)
> [  301.131207] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.137066] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.156451] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> [  301.158310] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.160238] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.196606] set resolution quirk: cval->res = 384
> [  371.309569] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
> [  390.729568] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> f5ade900 2296555[  390.730023] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> 437 S Ii:1:003:7[  390.736394] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>  -115:128 16 <
> f5ade900 2296566256 C Ii:1:003:7 -2:128 0
> [  391.100896] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> [  391.103188] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> f5ade900 2296926929 S Ii:1:003:7[  391.104889] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>  -115:128 16 <
> f5ade900 2296937889 C Ii:1:003:7 -2:128 0
> f5272300 2310382508 S Co:1:003:0 s 01 0b 0004 0001 0000 0
> f5272300 2310407888 C Co:1:003:0 0 0
> f5272300 2310408051 S Co:1:003:0 s 22 01 0100 0086 0003 3 = 80bb00
> f5272300 2310412456 C Co:1:003:0 0 3 >
> f5272300 2310412521 S Ci:1:003:0 s a2 81 0100 0086 0003 3 <
> f5272300 2310415909 C Ci:1:003:0 0 0
> f5272300 2310418133 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272600 2310418219 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f52720c0 2310418239 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272a80 2310418247 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272480 2310418256 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f52723c0 2310418264 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272d80 2310418272 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272b40 2310418280 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> 
> Hard freeze with 100% CPU usage at this point as if some driver got into an
> infinite loop or something.
> 
> All debug options from https://lkml.org/lkml/2012/10/20/116 are enabled, but
> serial console is empty.
> 
> Best wishes,
> 
> Artem
> 
> 
> On Oct 21, 2012, Borislav Petkov wrote: 
> 
> > I don't think that's the problem - I rather suspect the fact that he's
> > using virtualbox which is causing random corruptions by writing to
> > arbitrary locations.
> > 
> > 
> > 
> > please remove virtualbox completely from your system, rebuild the kernel
> > and make sure the virtualbox kernel modules don't get loaded - simply
> > delete them so that they are completely gone; *and* *then* retest again.
> 
> 

-- 
Regards/Gruss,
    Boris.

Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sat, Oct 20, 2012 at 11:15:17PM +0000, Artem S. Tashkinov wrote:
> You don't get me - I have *no* VirtualBox (or any proprietary) modules
> running

Ok, good. We got that out of the way - I wanted to make sure after you
replied with two other possibilities of the system freezing.

> - but I can reproduce this problem using *the same system running
> under* VirtualBox in Windows 7 64.

That's windoze as host and linux as a guest, correct?

If so, that's virtualbox's problem, I'd say.

> It's almost definitely either a USB driver bug or video4linux driver
> bug:

And you're assuming that because the freeze happens when using your usb
webcam, correct? And not otherwise?

Maybe you can describe in more detail what exactly you're doing so that
people could try to reproduce your issue.

> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
> https://lkml.org/lkml/2012/10/20/35
> https://lkml.org/lkml/2012/10/20/148

Yes, good idea. Maybe the folks there have some more ideas how to debug
this.

I'm leaving in the rest for reference.

What should be pointed out, though, is that you don't have any more
random corruptions causing oopses now that virtualbox is gone. The
freeze below is a whole another issue.

Thanks.

> Here are  the last lines from my dmesg (with usbmon loaded):
> 
> [  292.164833] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0002
> [  292.168091] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 00100a 0  ACK POWER sig=se0 PEC CSC
> [  292.172063] hub 1-0:1.0: port 1, status 0100, change 0003, 12 Mb/s
> [  292.174883] usb 1-1: USB disconnect, device number 2
> [  292.178045] usb 1-1: unregistering device
> [  292.183539] usb 1-1: unregistering interface 1-1:1.0
> [  292.197034] usb 1-1: unregistering interface 1-1:1.1
> [  292.204317] usb 1-1: unregistering interface 1-1:1.2
> [  292.234519] usb 1-1: unregistering interface 1-1:1.3
> [  292.236175] usb 1-1: usb_disable_device nuking all URBs
> [  292.364429] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x100
> [  294.364279] hub 1-0:1.0: hub_suspend
> [  294.366045] usb usb1: bus auto-suspend, wakeup 1
> [  294.367375] ehci_hcd 0000:00:1f.5: suspend root hub
> [  296.501084] usb usb1: usb wakeup-resume
> [  296.508311] usb usb1: usb auto-resume
> [  296.509833] ehci_hcd 0000:00:1f.5: resume root hub
> [  296.560149] hub 1-0:1.0: hub_resume
> [  296.562240] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 001003 0  ACK POWER sig=se0 CSC CONNECT
> [  296.566141] hub 1-0:1.0: port 1: status 0501 change 0001
> [  296.670413] hub 1-0:1.0: state 7 ports 8 chg 0002 evt 0000
> [  296.673222] hub 1-0:1.0: port 1, status 0501, change 0000, 480 Mb/s
> [  297.311720] usb 1-1: new high-speed USB device number 3 using ehci_hcd
> [  300.547237] usb 1-1: skipped 1 descriptor after configuration
> [  300.549443] usb 1-1: skipped 4 descriptors after interface
> [  300.552273] usb 1-1: skipped 2 descriptors after interface
> [  300.556499] usb 1-1: skipped 1 descriptor after endpoint
> [  300.559392] usb 1-1: skipped 2 descriptors after interface
> [  300.560960] usb 1-1: skipped 1 descriptor after endpoint
> [  300.562169] usb 1-1: skipped 2 descriptors after interface
> [  300.563440] usb 1-1: skipped 1 descriptor after endpoint
> [  300.564639] usb 1-1: skipped 2 descriptors after interface
> [  300.565828] usb 1-1: skipped 2 descriptors after endpoint
> [  300.567084] usb 1-1: skipped 9 descriptors after interface
> [  300.569205] usb 1-1: skipped 1 descriptor after endpoint
> [  300.570484] usb 1-1: skipped 53 descriptors after interface
> [  300.595843] usb 1-1: default language 0x0409
> [  300.602503] usb 1-1: USB interface quirks for this device: 2
> [  300.605700] usb 1-1: udev 3, busnum 1, minor = 2
> [  300.606959] usb 1-1: New USB device found, idVendor=046d, idProduct=081d
> [  300.610298] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
> [  300.613742] usb 1-1: SerialNumber: 48C5D2B0
> [  300.617703] usb 1-1: usb_probe_device
> [  300.620594] usb 1-1: configuration #1 chosen from 1 choice
> [  300.639218] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
> [  300.640736] snd-usb-audio 1-1:1.0: usb_probe_interface
> [  300.642307] snd-usb-audio 1-1:1.0: usb_probe_interface - got id
> [  301.050296] usb 1-1: adding 1-1:1.1 (config #1, interface 1)
> [  301.054897] usb 1-1: adding 1-1:1.2 (config #1, interface 2)
> [  301.056934] uvcvideo 1-1:1.2: usb_probe_interface
> [  301.058072] uvcvideo 1-1:1.2: usb_probe_interface - got id
> [  301.059395] uvcvideo: Found UVC 1.00 device <unnamed> (046d:081d)
> [  301.090173] input: UVC Camera (046d:081d) as /devices/pci0000:00/0000:00:1f.5/usb1/1-1/1-1:1.2/input/input7
> [  301.111289] usb 1-1: adding 1-1:1.3 (config #1, interface 3)
> [  301.131207] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.137066] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.156451] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> [  301.158310] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.160238] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.196606] set resolution quirk: cval->res = 384
> [  371.309569] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
> [  390.729568] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> f5ade900 2296555[  390.730023] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> 437 S Ii:1:003:7[  390.736394] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>  -115:128 16 <
> f5ade900 2296566256 C Ii:1:003:7 -2:128 0
> [  391.100896] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> [  391.103188] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> f5ade900 2296926929 S Ii:1:003:7[  391.104889] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>  -115:128 16 <
> f5ade900 2296937889 C Ii:1:003:7 -2:128 0
> f5272300 2310382508 S Co:1:003:0 s 01 0b 0004 0001 0000 0
> f5272300 2310407888 C Co:1:003:0 0 0
> f5272300 2310408051 S Co:1:003:0 s 22 01 0100 0086 0003 3 = 80bb00
> f5272300 2310412456 C Co:1:003:0 0 3 >
> f5272300 2310412521 S Ci:1:003:0 s a2 81 0100 0086 0003 3 <
> f5272300 2310415909 C Ci:1:003:0 0 0
> f5272300 2310418133 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272600 2310418219 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f52720c0 2310418239 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272a80 2310418247 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272480 2310418256 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f52723c0 2310418264 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272d80 2310418272 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272b40 2310418280 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> 
> Hard freeze with 100% CPU usage at this point as if some driver got into an
> infinite loop or something.
> 
> All debug options from https://lkml.org/lkml/2012/10/20/116 are enabled, but
> serial console is empty.
> 
> Best wishes,
> 
> Artem
> 
> 
> On Oct 21, 2012, Borislav Petkov wrote: 
> 
> > I don't think that's the problem - I rather suspect the fact that he's
> > using virtualbox which is causing random corruptions by writing to
> > arbitrary locations.
> > 
> > 
> > 
> > please remove virtualbox completely from your system, rebuild the kernel
> > and make sure the virtualbox kernel modules don't get loaded - simply
> > delete them so that they are completely gone; *and* *then* retest again.
> 
> 

-- 
Regards/Gruss,
    Boris.
--
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Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

> On Oct 21, 2012, Borislav Petkov wrote: 
> 
> On Sat, Oct 20, 2012 at 11:15:17PM +0000, Artem S. Tashkinov wrote:
> > You don't get me - I have *no* VirtualBox (or any proprietary) modules
> > running
> 
> Ok, good. We got that out of the way - I wanted to make sure after you
> replied with two other possibilities of the system freezing.
> 
> > - but I can reproduce this problem using *the same system running
> > under* VirtualBox in Windows 7 64.
> 
> That's windoze as host and linux as a guest, correct?

Exactly.

> If so, that's virtualbox's problem, I'd say.

I can reproduce it on my host *alone* as I said in the very first message - never
before I tried to run my Linux in a virtual machine. Please, just forget about
VirtualBox - it has nothing to do with this problem.

> > It's almost definitely either a USB driver bug or video4linux driver
> > bug:
> 
> And you're assuming that because the freeze happens when using your usb
> webcam, correct? And not otherwise?

Yes, like I said earlier - only when I try to access its settings using Adobe Flash the
system crashes/freezes.

> Maybe you can describe in more detail what exactly you're doing so that
> people could try to reproduce your issue.

I don't think many people have the same webcam so it's going to be a problem. It
can be reproduced easily - just open Flash "Settings" in Google Chrome 22. The
crash will occur immediately.

> > I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
> > https://lkml.org/lkml/2012/10/20/35
> > https://lkml.org/lkml/2012/10/20/148
> 
> Yes, good idea. Maybe the folks there have some more ideas how to debug
> this.
> 
> I'm leaving in the rest for reference.
> 
> What should be pointed out, though, is that you don't have any more
> random corruptions causing oopses now that virtualbox is gone. The
> freeze below is a whole another issue.

The freeze happens on my *host* Linux PC. For an experiment I decided to
check if I could reproduce the freeze under a virtual machine - it turns out the
Linux kernel running under it also freezes.

Artem

Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Sat, 20 Oct 2012, Artem S. Tashkinov wrote:

> You don't get me - I have *no* VirtualBox (or any proprietary) modules running
> - but I can reproduce this problem using *the same system running under* VirtualBox
> in Windows 7 64.
> 
> It's almost definitely either a USB driver bug or video4linux driver bug:

Does the same thing happen with earlier kernel versions?

What about if you unload snd-usb-audio or ehci-hcd?

Alan Stern

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 01:15, Artem S. Tashkinov wrote:
> You don't get me - I have *no* VirtualBox (or any proprietary) modules running
> - but I can reproduce this problem using *the same system running under* VirtualBox
> in Windows 7 64.
> 
> It's almost definitely either a USB driver bug or video4linux driver bug:
> 
> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
> https://lkml.org/lkml/2012/10/20/35
> https://lkml.org/lkml/2012/10/20/148
> 
> Here are  the last lines from my dmesg (with usbmon loaded):
> 
> [  292.164833] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0002
> [  292.168091] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 00100a 0  ACK POWER sig=se0 PEC CSC
> [  292.172063] hub 1-0:1.0: port 1, status 0100, change 0003, 12 Mb/s
> [  292.174883] usb 1-1: USB disconnect, device number 2
> [  292.178045] usb 1-1: unregistering device
> [  292.183539] usb 1-1: unregistering interface 1-1:1.0
> [  292.197034] usb 1-1: unregistering interface 1-1:1.1
> [  292.204317] usb 1-1: unregistering interface 1-1:1.2
> [  292.234519] usb 1-1: unregistering interface 1-1:1.3
> [  292.236175] usb 1-1: usb_disable_device nuking all URBs
> [  292.364429] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x100
> [  294.364279] hub 1-0:1.0: hub_suspend
> [  294.366045] usb usb1: bus auto-suspend, wakeup 1
> [  294.367375] ehci_hcd 0000:00:1f.5: suspend root hub
> [  296.501084] usb usb1: usb wakeup-resume
> [  296.508311] usb usb1: usb auto-resume
> [  296.509833] ehci_hcd 0000:00:1f.5: resume root hub
> [  296.560149] hub 1-0:1.0: hub_resume
> [  296.562240] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 001003 0  ACK POWER sig=se0 CSC CONNECT
> [  296.566141] hub 1-0:1.0: port 1: status 0501 change 0001
> [  296.670413] hub 1-0:1.0: state 7 ports 8 chg 0002 evt 0000
> [  296.673222] hub 1-0:1.0: port 1, status 0501, change 0000, 480 Mb/s
> [  297.311720] usb 1-1: new high-speed USB device number 3 using ehci_hcd
> [  300.547237] usb 1-1: skipped 1 descriptor after configuration
> [  300.549443] usb 1-1: skipped 4 descriptors after interface
> [  300.552273] usb 1-1: skipped 2 descriptors after interface
> [  300.556499] usb 1-1: skipped 1 descriptor after endpoint
> [  300.559392] usb 1-1: skipped 2 descriptors after interface
> [  300.560960] usb 1-1: skipped 1 descriptor after endpoint
> [  300.562169] usb 1-1: skipped 2 descriptors after interface
> [  300.563440] usb 1-1: skipped 1 descriptor after endpoint
> [  300.564639] usb 1-1: skipped 2 descriptors after interface
> [  300.565828] usb 1-1: skipped 2 descriptors after endpoint
> [  300.567084] usb 1-1: skipped 9 descriptors after interface
> [  300.569205] usb 1-1: skipped 1 descriptor after endpoint
> [  300.570484] usb 1-1: skipped 53 descriptors after interface
> [  300.595843] usb 1-1: default language 0x0409
> [  300.602503] usb 1-1: USB interface quirks for this device: 2
> [  300.605700] usb 1-1: udev 3, busnum 1, minor = 2
> [  300.606959] usb 1-1: New USB device found, idVendor=046d, idProduct=081d
> [  300.610298] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
> [  300.613742] usb 1-1: SerialNumber: 48C5D2B0
> [  300.617703] usb 1-1: usb_probe_device
> [  300.620594] usb 1-1: configuration #1 chosen from 1 choice
> [  300.639218] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
> [  300.640736] snd-usb-audio 1-1:1.0: usb_probe_interface
> [  300.642307] snd-usb-audio 1-1:1.0: usb_probe_interface - got id
> [  301.050296] usb 1-1: adding 1-1:1.1 (config #1, interface 1)
> [  301.054897] usb 1-1: adding 1-1:1.2 (config #1, interface 2)
> [  301.056934] uvcvideo 1-1:1.2: usb_probe_interface
> [  301.058072] uvcvideo 1-1:1.2: usb_probe_interface - got id
> [  301.059395] uvcvideo: Found UVC 1.00 device <unnamed> (046d:081d)
> [  301.090173] input: UVC Camera (046d:081d) as /devices/pci0000:00/0000:00:1f.5/usb1/1-1/1-1:1.2/input/input7

That seems to be a Logitech model.

> [  301.111289] usb 1-1: adding 1-1:1.3 (config #1, interface 3)
> [  301.131207] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.137066] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.156451] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> [  301.158310] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.160238] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
> [  301.196606] set resolution quirk: cval->res = 384
> [  371.309569] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
> [  390.729568] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> f5ade900 2296555[  390.730023] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> 437 S Ii:1:003:7[  390.736394] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>  -115:128 16 <
> f5ade900 2296566256 C Ii:1:003:7 -2:128 0
> [  391.100896] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
> [  391.103188] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
> f5ade900 2296926929 S Ii:1:003:7[  391.104889] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>  -115:128 16 <
> f5ade900 2296937889 C Ii:1:003:7 -2:128 0
> f5272300 2310382508 S Co:1:003:0 s 01 0b 0004 0001 0000 0
> f5272300 2310407888 C Co:1:003:0 0 0
> f5272300 2310408051 S Co:1:003:0 s 22 01 0100 0086 0003 3 = 80bb00
> f5272300 2310412456 C Co:1:003:0 0 3 >
> f5272300 2310412521 S Ci:1:003:0 s a2 81 0100 0086 0003 3 <
> f5272300 2310415909 C Ci:1:003:0 0 0
> f5272300 2310418133 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272600 2310418219 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f52720c0 2310418239 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272a80 2310418247 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272480 2310418256 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f52723c0 2310418264 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272d80 2310418272 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
> f5272b40 2310418280 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <

At least this last packet was an isochronous input on ep 6 which has
state -EINPROGRESS, but that isn't necessarily related.

> Hard freeze with 100% CPU usage at this point as if some driver got into an
> infinite loop or something.

>From your first mail in this thread, I suspect that to be some sort of
memory corruption, but now you're seeing a hard freeze. Hmm.

> All debug options from https://lkml.org/lkml/2012/10/20/116 are enabled, but
> serial console is empty.

Some thoughts:

- As Alan asked, it would be interesting to separate video and audio
functions in this test, either by unloading the kernel modules one by
one or by disallowing Flash access to the devices.

- Can you reproduce this with some other webcam tool like "cheese"?

- Can you reproduce this with some other audio capture tool like
"arecord" (use "-D" to point it to the correct device, and play with
various sample rates and buffer sizes here)

- Do you have any built-in webcam or microphone? Does it work when you
use them instead?

- Does http://trust.com/service/guides/webcam/ also crash your kernel?

- if you can narrow down the issue to USB devices, please post the
output of "lsusb -v"

I tried Chrome 22 on Ubuntu with a cheap Logitech USB webcam (different
product ID than yours, though) under 3.6.0 and 3.6.2, and I can't
reproduce the issue.


Daniel

Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sun, Oct 21, 2012 at 01:57:21AM +0000, Artem S. Tashkinov wrote:
> The freeze happens on my *host* Linux PC. For an experiment I decided
> to check if I could reproduce the freeze under a virtual machine - it
> turns out the Linux kernel running under it also freezes.

I know that - but a freeze != oops - at least not necessarily. Which
means it could very well be a different issue now that vbox is gone.

Or, it could be the same issue with different incarnations: with vbox
you get the corruptions and without it, you get the freezes. I'm
assuming you do the same flash player thing in both cases?

Here's a crazy idea: can you try to reproduce it in KVM?

Thanks.

-- 
Regards/Gruss,
    Boris.

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 12:34, Daniel Mack wrote:
> On 21.10.2012 01:15, Artem S. Tashkinov wrote:
>> You don't get me - I have *no* VirtualBox (or any proprietary) modules running
>> - but I can reproduce this problem using *the same system running under* VirtualBox
>> in Windows 7 64.
>>
>> It's almost definitely either a USB driver bug or video4linux driver bug:
>>
>> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
>> https://lkml.org/lkml/2012/10/20/35
>> https://lkml.org/lkml/2012/10/20/148
>>
>> Here are  the last lines from my dmesg (with usbmon loaded):
>>
>> [  292.164833] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0002
>> [  292.168091] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 00100a 0  ACK POWER sig=se0 PEC CSC
>> [  292.172063] hub 1-0:1.0: port 1, status 0100, change 0003, 12 Mb/s
>> [  292.174883] usb 1-1: USB disconnect, device number 2
>> [  292.178045] usb 1-1: unregistering device
>> [  292.183539] usb 1-1: unregistering interface 1-1:1.0
>> [  292.197034] usb 1-1: unregistering interface 1-1:1.1
>> [  292.204317] usb 1-1: unregistering interface 1-1:1.2
>> [  292.234519] usb 1-1: unregistering interface 1-1:1.3
>> [  292.236175] usb 1-1: usb_disable_device nuking all URBs
>> [  292.364429] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x100
>> [  294.364279] hub 1-0:1.0: hub_suspend
>> [  294.366045] usb usb1: bus auto-suspend, wakeup 1
>> [  294.367375] ehci_hcd 0000:00:1f.5: suspend root hub
>> [  296.501084] usb usb1: usb wakeup-resume
>> [  296.508311] usb usb1: usb auto-resume
>> [  296.509833] ehci_hcd 0000:00:1f.5: resume root hub
>> [  296.560149] hub 1-0:1.0: hub_resume
>> [  296.562240] ehci_hcd 0000:00:1f.5: GetStatus port:1 status 001003 0  ACK POWER sig=se0 CSC CONNECT
>> [  296.566141] hub 1-0:1.0: port 1: status 0501 change 0001
>> [  296.670413] hub 1-0:1.0: state 7 ports 8 chg 0002 evt 0000
>> [  296.673222] hub 1-0:1.0: port 1, status 0501, change 0000, 480 Mb/s
>> [  297.311720] usb 1-1: new high-speed USB device number 3 using ehci_hcd
>> [  300.547237] usb 1-1: skipped 1 descriptor after configuration
>> [  300.549443] usb 1-1: skipped 4 descriptors after interface
>> [  300.552273] usb 1-1: skipped 2 descriptors after interface
>> [  300.556499] usb 1-1: skipped 1 descriptor after endpoint
>> [  300.559392] usb 1-1: skipped 2 descriptors after interface
>> [  300.560960] usb 1-1: skipped 1 descriptor after endpoint
>> [  300.562169] usb 1-1: skipped 2 descriptors after interface
>> [  300.563440] usb 1-1: skipped 1 descriptor after endpoint
>> [  300.564639] usb 1-1: skipped 2 descriptors after interface
>> [  300.565828] usb 1-1: skipped 2 descriptors after endpoint
>> [  300.567084] usb 1-1: skipped 9 descriptors after interface
>> [  300.569205] usb 1-1: skipped 1 descriptor after endpoint
>> [  300.570484] usb 1-1: skipped 53 descriptors after interface
>> [  300.595843] usb 1-1: default language 0x0409
>> [  300.602503] usb 1-1: USB interface quirks for this device: 2
>> [  300.605700] usb 1-1: udev 3, busnum 1, minor = 2
>> [  300.606959] usb 1-1: New USB device found, idVendor=046d, idProduct=081d
>> [  300.610298] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
>> [  300.613742] usb 1-1: SerialNumber: 48C5D2B0
>> [  300.617703] usb 1-1: usb_probe_device
>> [  300.620594] usb 1-1: configuration #1 chosen from 1 choice
>> [  300.639218] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
>> [  300.640736] snd-usb-audio 1-1:1.0: usb_probe_interface
>> [  300.642307] snd-usb-audio 1-1:1.0: usb_probe_interface - got id
>> [  301.050296] usb 1-1: adding 1-1:1.1 (config #1, interface 1)
>> [  301.054897] usb 1-1: adding 1-1:1.2 (config #1, interface 2)
>> [  301.056934] uvcvideo 1-1:1.2: usb_probe_interface
>> [  301.058072] uvcvideo 1-1:1.2: usb_probe_interface - got id
>> [  301.059395] uvcvideo: Found UVC 1.00 device <unnamed> (046d:081d)
>> [  301.090173] input: UVC Camera (046d:081d) as /devices/pci0000:00/0000:00:1f.5/usb1/1-1/1-1:1.2/input/input7
> 
> That seems to be a Logitech model.
> 
>> [  301.111289] usb 1-1: adding 1-1:1.3 (config #1, interface 3)
>> [  301.131207] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
>> [  301.137066] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>> [  301.156451] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
>> [  301.158310] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
>> [  301.160238] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>> [  301.196606] set resolution quirk: cval->res = 384
>> [  371.309569] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
>> [  390.729568] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
>> f5ade900 2296555[  390.730023] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
>> 437 S Ii:1:003:7[  390.736394] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>>  -115:128 16 <
>> f5ade900 2296566256 C Ii:1:003:7 -2:128 0
>> [  391.100896] ehci_hcd 0000:00:1f.5: reused qh f48d64c0 schedule
>> [  391.103188] usb 1-1: link qh16-0001/f48d64c0 start 2 [1/0 us]
>> f5ade900 2296926929 S Ii:1:003:7[  391.104889] usb 1-1: unlink qh16-0001/f48d64c0 start 2 [1/0 us]
>>  -115:128 16 <
>> f5ade900 2296937889 C Ii:1:003:7 -2:128 0
>> f5272300 2310382508 S Co:1:003:0 s 01 0b 0004 0001 0000 0
>> f5272300 2310407888 C Co:1:003:0 0 0
>> f5272300 2310408051 S Co:1:003:0 s 22 01 0100 0086 0003 3 = 80bb00
>> f5272300 2310412456 C Co:1:003:0 0 3 >
>> f5272300 2310412521 S Ci:1:003:0 s a2 81 0100 0086 0003 3 <
>> f5272300 2310415909 C Ci:1:003:0 0 0
>> f5272300 2310418133 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f5272600 2310418219 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f52720c0 2310418239 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f5272a80 2310418247 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f5272480 2310418256 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f52723c0 2310418264 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f5272d80 2310418272 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <
>> f5272b40 2310418280 S Zi:1:003:6 -115:8:0 1 -18:0:100 100 <

[...]

> I tried Chrome 22 on Ubuntu with a cheap Logitech USB webcam (different
> product ID than yours, though) under 3.6.0 and 3.6.2, and I can't
> reproduce the issue.

FWIW, I also tried Chrome 22 and Firefox 16 with kernel version 3.5.4
and 3.6.2 on Fedora 17 and everything worked as expected (with both an
external and the built-in webcam of a T420). Cheese and arecord also
work on all kernel versions and distributions I have tested so far.

So whatever causes your trouble, I assume it's rather specific to your
machine configuration and setup. More information is needed here.


Daniel

Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

On Oct 21, 2012, Borislav Petkov wrote:
>
> On Sun, Oct 21, 2012 at 01:57:21AM +0000, Artem S. Tashkinov wrote:
> > The freeze happens on my *host* Linux PC. For an experiment I decided
> > to check if I could reproduce the freeze under a virtual machine - it
> > turns out the Linux kernel running under it also freezes.
>
> I know that - but a freeze != oops - at least not necessarily. Which
> means it could very well be a different issue now that vbox is gone.
>
> Or, it could be the same issue with different incarnations: with vbox
> you get the corruptions and without it, you get the freezes. I'm
> assuming you do the same flash player thing in both cases?
>
> Here's a crazy idea: can you try to reproduce it in KVM?

OK, dismiss VBox altogether - it has a very buggy USB implementation, thus
it just hangs when trying to access my webcam.

What I've found out is that my system crashes *only* when I try to enable
usb-audio (from the same webcam) - I still have no idea how to capture a
panic message, but I ran

"while :; do dmesg -c; done" in xterm, then I got like thousands of messages
and I photographed my monitor:

http://imageshack.us/a/img685/9452/panicz.jpg

list_del corruption. prev->next should be ... but was ...

I cannot show you more as I have no serial console to use :( and the kernel
doesn't have enough time to push error messages to rsyslog and fsync
/var/log/messages

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 13:59, Artem S. Tashkinov wrote:
> On Oct 21, 2012, Borislav Petkov wrote:
>>
>> On Sun, Oct 21, 2012 at 01:57:21AM +0000, Artem S. Tashkinov wrote:
>>> The freeze happens on my *host* Linux PC. For an experiment I decided
>>> to check if I could reproduce the freeze under a virtual machine - it
>>> turns out the Linux kernel running under it also freezes.
>>
>> I know that - but a freeze != oops - at least not necessarily. Which
>> means it could very well be a different issue now that vbox is gone.
>>
>> Or, it could be the same issue with different incarnations: with vbox
>> you get the corruptions and without it, you get the freezes. I'm
>> assuming you do the same flash player thing in both cases?
>>
>> Here's a crazy idea: can you try to reproduce it in KVM?
> 
> OK, dismiss VBox altogether - it has a very buggy USB implementation, thus
> it just hangs when trying to access my webcam.

Ok.

> What I've found out is that my system crashes *only* when I try to enable
> usb-audio (from the same webcam) - I still have no idea how to capture a
> panic message, but I ran
> 
> "while :; do dmesg -c; done" in xterm, then I got like thousands of messages
> and I photographed my monitor:
> 
> http://imageshack.us/a/img685/9452/panicz.jpg

A hint at least. How did you enable the audio record exactly? Can you
reproduce this with arecord?

What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
dumps. As I said, I fail to reproduce that issue on any of my machines.


Daniel

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 13:59, Artem S. Tashkinov wrote:
> On Oct 21, 2012, Borislav Petkov wrote:
>>
>> On Sun, Oct 21, 2012 at 01:57:21AM +0000, Artem S. Tashkinov wrote:
>>> The freeze happens on my *host* Linux PC. For an experiment I decided
>>> to check if I could reproduce the freeze under a virtual machine - it
>>> turns out the Linux kernel running under it also freezes.
>>
>> I know that - but a freeze != oops - at least not necessarily. Which
>> means it could very well be a different issue now that vbox is gone.
>>
>> Or, it could be the same issue with different incarnations: with vbox
>> you get the corruptions and without it, you get the freezes. I'm
>> assuming you do the same flash player thing in both cases?
>>
>> Here's a crazy idea: can you try to reproduce it in KVM?
> 
> OK, dismiss VBox altogether - it has a very buggy USB implementation, thus
> it just hangs when trying to access my webcam.

Ok.

> What I've found out is that my system crashes *only* when I try to enable
> usb-audio (from the same webcam) - I still have no idea how to capture a
> panic message, but I ran
> 
> "while :; do dmesg -c; done" in xterm, then I got like thousands of messages
> and I photographed my monitor:
> 
> http://imageshack.us/a/img685/9452/panicz.jpg

A hint at least. How did you enable the audio record exactly? Can you
reproduce this with arecord?

What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
dumps. As I said, I fail to reproduce that issue on any of my machines.


Daniel

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Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 13:59, Artem S. Tashkinov wrote:
> On Oct 21, 2012, Borislav Petkov wrote:
>>
>> On Sun, Oct 21, 2012 at 01:57:21AM +0000, Artem S. Tashkinov wrote:
>>> The freeze happens on my *host* Linux PC. For an experiment I decided
>>> to check if I could reproduce the freeze under a virtual machine - it
>>> turns out the Linux kernel running under it also freezes.
>>
>> I know that - but a freeze != oops - at least not necessarily. Which
>> means it could very well be a different issue now that vbox is gone.
>>
>> Or, it could be the same issue with different incarnations: with vbox
>> you get the corruptions and without it, you get the freezes. I'm
>> assuming you do the same flash player thing in both cases?
>>
>> Here's a crazy idea: can you try to reproduce it in KVM?
> 
> OK, dismiss VBox altogether - it has a very buggy USB implementation, thus
> it just hangs when trying to access my webcam.
> 
> What I've found out is that my system crashes *only* when I try to enable
> usb-audio (from the same webcam)

It would also be interesting to know whether you have problems with
*only* the video capture, with some tool like "cheese". It might be
you're hitting a host controller issue here, and then isochronous input
packets on the video interface would most likely also trigger such am
effect. Actually, knowing whether that's the case would be crucial for
further debugging.


Daniel

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

On Oct 21, 2012, Daniel Mack wrote: 

> A hint at least. How did you enable the audio record exactly? Can you
> reproduce this with arecord?
> 
> What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
> dumps. As I said, I fail to reproduce that issue on any of my machines.

All other applications can read from the USB audio without problems, it's
just something in the way Adobe Flash polls my audio input which causes
a crash.

Just video capture (without audio) works just fine in Adobe Flash.

Only and only when I choose to use 

USB Device 0x46d:0x81d my system crashes in Adobe Flash.

See the screenshot:

https://bugzilla.kernel.org/attachment.cgi?id=84151

My hardware information can be fetched from here:

https://bugzilla.kernel.org/show_bug.cgi?id=49181

On a second thought that can be even an ALSA crash or pretty much
anything else.

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

On Oct 21, 2012, Daniel Mack wrote: 

> A hint at least. How did you enable the audio record exactly? Can you
> reproduce this with arecord?
> 
> What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
> dumps. As I said, I fail to reproduce that issue on any of my machines.

All other applications can read from the USB audio without problems, it's
just something in the way Adobe Flash polls my audio input which causes
a crash.

Just video capture (without audio) works just fine in Adobe Flash.

Only and only when I choose to use 

USB Device 0x46d:0x81d my system crashes in Adobe Flash.

See the screenshot:

https://bugzilla.kernel.org/attachment.cgi?id=84151

My hardware information can be fetched from here:

https://bugzilla.kernel.org/show_bug.cgi?id=49181

On a second thought that can be even an ALSA crash or pretty much
anything else.
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Re: was: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

[-- Attachment #1: Type: text/plain, Size: 1906 bytes --]

[Cc: alsa-devel]

On 21.10.2012 14:30, Artem S. Tashkinov wrote:
> On Oct 21, 2012, Daniel Mack wrote: 
> 
>> A hint at least. How did you enable the audio record exactly? Can you
>> reproduce this with arecord?
>>
>> What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
>> dumps. As I said, I fail to reproduce that issue on any of my machines.
> 
> All other applications can read from the USB audio without problems, it's
> just something in the way Adobe Flash polls my audio input which causes
> a crash.
> 
> Just video capture (without audio) works just fine in Adobe Flash.

Ok, so that pretty much rules out the host controller. I just wonder why
I still don't see it here, and I haven't heard of any such problem from
anyone else.

Some more questions:

- Which version of Flash are you running?
- Does this also happen with Firefox?
- Does flash access the device directly or via PulseAudio?
- Could you please apply the attached patch and see what it spits out to
dmesg once Flash opens the device? It returns -EINVAL in the hw_params
callback to prevent the actual streaming. On my machine with Flash
11.4.31.110, I get values of 2/44800/1/32768/2048/0, which seems sane.
Or does your machine still crash before anything is written to the logs?

> Only and only when I choose to use 
> 
> USB Device 0x46d:0x81d my system crashes in Adobe Flash.
>
> See the screenshot:
> 
> https://bugzilla.kernel.org/attachment.cgi?id=84151

When exactly does the crash happen? Right after you selected that entry
from the list? There's a little recording level meter in that dialog.
Does that show any input from the microphone?

> My hardware information can be fetched from here:
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=49181
> 
> On a second thought that can be even an ALSA crash or pretty much
> anything else.

We'll see. Thanks for your help to sort this out!


Daniel




[-- Attachment #2: snd-usb-hwparams.diff --]
[-- Type: text/x-patch, Size: 778 bytes --]

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index f782ce1..5664b45 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -453,6 +453,18 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
 	unsigned int channels, rate, format;
 	int ret, changed;
 
+
+	printk(">>> %s()\n", __func__);
+
+	printk("format: %d\n", params_format(hw_params));
+	printk("rate: %d\n", params_rate(hw_params));
+	printk("channels: %d\n", params_channels(hw_params));
+	printk("buffer bytes: %d\n", params_buffer_bytes(hw_params));
+	printk("period bytes: %d\n", params_period_bytes(hw_params));
+	printk("access: %d\n", params_access(hw_params));
+
+	return -EINVAL;
+
 	ret = snd_pcm_lib_alloc_vmalloc_buffer(substream,
 					       params_buffer_bytes(hw_params));
 	if (ret < 0)

Re: Re: was: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

> On Oct 21, 2012, Daniel Mack  wrote: 
> 
> [Cc: alsa-devel]
> 
> On 21.10.2012 14:30, Artem S. Tashkinov wrote:
> > On Oct 21, 2012, Daniel Mack wrote: 
> > 
> >> A hint at least. How did you enable the audio record exactly? Can you
> >> reproduce this with arecord?
> >>
> >> What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
> >> dumps. As I said, I fail to reproduce that issue on any of my machines.
> > 
> > All other applications can read from the USB audio without problems, it's
> > just something in the way Adobe Flash polls my audio input which causes
> > a crash.
> > 
> > Just video capture (without audio) works just fine in Adobe Flash.
> 
> Ok, so that pretty much rules out the host controller. I just wonder why
> I still don't see it here, and I haven't heard of any such problem from
> anyone else.
> 
> Some more questions:
> 
> - Which version of Flash are you running?

Google Chrome has its own version of Adobe Flash:

Name:	Shockwave Flash
Description:	Shockwave Flash 11.4 r31
Version:	11.4.31.110

> - Does this also happen with Firefox?

No, Adobe Flash in Firefox is an older version (Shockwave Flash 11.1 r102), it shows
just two input devices instead of three which the newer Flash players sees.

* HDA Intel PCH
* USB Device 0x46d:0x81d

> - Does flash access the device directly or via PulseAudio?

PA is not installed on my computer, so Flash accesses it directly via ALSA calls.

> - Could you please apply the attached patch and see what it spits out to
> dmesg once Flash opens the device? It returns -EINVAL in the hw_params
> callback to prevent the actual streaming. On my machine with Flash
> 11.4.31.110, I get values of 2/44800/1/32768/2048/0, which seems sane.
> Or does your machine still crash before anything is written to the logs?

I will try it a bit later.

> > Only and only when I choose to use 
> > 
> > USB Device 0x46d:0x81d my system crashes in Adobe Flash.
> >
> > See the screenshot:
> > 
> > https://bugzilla.kernel.org/attachment.cgi?id=84151
> 
> When exactly does the crash happen? Right after you selected that entry
> from the list? There's a little recording level meter in that dialog.
> Does that show any input from the microphone?

Yes, right after I select it and move the mouse cursor away from this combobox
so that this selection becomes active.

> > My hardware information can be fetched from here:
> > 
> > https://bugzilla.kernel.org/show_bug.cgi?id=49181
> > 
> > On a second thought that can be even an ALSA crash or pretty much
> > anything else.
> 
> We'll see. Thanks for your help to sort this out!

Thank you for your assistance!

Re: was: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 16:57, Artem S. Tashkinov wrote:
>> On Oct 21, 2012, Daniel Mack  wrote: 
>>
>> [Cc: alsa-devel]
>>
>> On 21.10.2012 14:30, Artem S. Tashkinov wrote:
>>> On Oct 21, 2012, Daniel Mack wrote: 
>>>
>>>> A hint at least. How did you enable the audio record exactly? Can you
>>>> reproduce this with arecord?
>>>>
>>>> What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
>>>> dumps. As I said, I fail to reproduce that issue on any of my machines.
>>>
>>> All other applications can read from the USB audio without problems, it's
>>> just something in the way Adobe Flash polls my audio input which causes
>>> a crash.
>>>
>>> Just video capture (without audio) works just fine in Adobe Flash.
>>
>> Ok, so that pretty much rules out the host controller. I just wonder why
>> I still don't see it here, and I haven't heard of any such problem from
>> anyone else.
>>
>> Some more questions:
>>
>> - Which version of Flash are you running?
> 
> Google Chrome has its own version of Adobe Flash:
> 
> Name:	Shockwave Flash
> Description:	Shockwave Flash 11.4 r31
> Version:	11.4.31.110

So that's the same that I'm using.

>> - Does this also happen with Firefox?
> 
> No, Adobe Flash in Firefox is an older version (Shockwave Flash 11.1 r102), it shows
> just two input devices instead of three which the newer Flash players sees.
> 
> * HDA Intel PCH
> * USB Device 0x46d:0x81d

And that works, I assume? Does the second choice in the newer Flash
version work maybe?

>> - Does flash access the device directly or via PulseAudio?
> 
> PA is not installed on my computer, so Flash accesses it directly via ALSA calls.

Ok, Same here.

>> - Could you please apply the attached patch and see what it spits out to
>> dmesg once Flash opens the device? It returns -EINVAL in the hw_params
>> callback to prevent the actual streaming. On my machine with Flash
>> 11.4.31.110, I get values of 2/44800/1/32768/2048/0, which seems sane.
>> Or does your machine still crash before anything is written to the logs?
> 
> I will try it a bit later.

Yes, we need to trace the call chain and see at which point the trouble
starts. What could help is tracing the google-chrome binary with strace
maybe. At least we would see the ioctl command sequence, if the log file
survives the crash.

As the usb list is still in Cc: - Artem's lcpci dump shows that his
machine features XHCI controllers. Can anyone think of a relation to
this problem?

And Artem, is there any way you boot your system on an older machine
that only has EHCI ports? Thinking about it, I wonder whether the freeze
in VBox and the crashes on native hardware have the same root cause. In
that case, would it be possible to share that VBox image?


Daniel

Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Sun, 21 Oct 2012, Artem S. Tashkinov wrote:

> What I've found out is that my system crashes *only* when I try to enable
> usb-audio (from the same webcam) - I still have no idea how to capture a
> panic message, but I ran
> 
> "while :; do dmesg -c; done" in xterm, then I got like thousands of messages
> and I photographed my monitor:
> 
> http://imageshack.us/a/img685/9452/panicz.jpg
> 
> list_del corruption. prev->next should be ... but was ...
> 
> I cannot show you more as I have no serial console to use :( and the kernel
> doesn't have enough time to push error messages to rsyslog and fsync
> /var/log/messages

Is it possible to use netconsole?  The screenshot above appears to be 
the end of a long series of error messages, which isn't too useful.  
The most important information is in the first error.

Alan Stern

Re: was: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Sun, 21 Oct 2012, Daniel Mack wrote:

> As the usb list is still in Cc: - Artem's lcpci dump shows that his
> machine features XHCI controllers. Can anyone think of a relation to
> this problem?
> 
> And Artem, is there any way you boot your system on an older machine
> that only has EHCI ports? Thinking about it, I wonder whether the freeze
> in VBox and the crashes on native hardware have the same root cause. In
> that case, would it be possible to share that VBox image?

Don't grasp at straws.  All of the kernel logs Artem has posted show 
ehci-hcd; none of them show xhci-hcd.  Therefore the xHCI controller is 
highly unlikely to be involved.

Alan Stern

Re: was: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Sun, 21 Oct 2012, Daniel Mack wrote:

> As the usb list is still in Cc: - Artem's lcpci dump shows that his
> machine features XHCI controllers. Can anyone think of a relation to
> this problem?
> 
> And Artem, is there any way you boot your system on an older machine
> that only has EHCI ports? Thinking about it, I wonder whether the freeze
> in VBox and the crashes on native hardware have the same root cause. In
> that case, would it be possible to share that VBox image?

Don't grasp at straws.  All of the kernel logs Artem has posted show 
ehci-hcd; none of them show xhci-hcd.  Therefore the xHCI controller is 
highly unlikely to be involved.

Alan Stern

Re: was: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On Oct 21, 2012 5:28 PM, "Alan Stern" <stern@rowland.harvard.edu> wrote:
>
> On Sun, 21 Oct 2012, Daniel Mack wrote:
>
> > As the usb list is still in Cc: - Artem's lcpci dump shows that his
> > machine features XHCI controllers. Can anyone think of a relation to
> > this problem?
> >
> > And Artem, is there any way you boot your system on an older machine
> > that only has EHCI ports? Thinking about it, I wonder whether the freeze
> > in VBox and the crashes on native hardware have the same root cause. In
> > that case, would it be possible to share that VBox image?
>
> Don't grasp at straws.  All of the kernel logs Artem has posted show
> ehci-hcd; none of them show xhci-hcd.  Therefore the xHCI controller is
> highly unlikely to be involved.

You might be right - I'm just looking for differences between his setup and
mine that would explain why nobody else sees a severe bug that is 100%
reproducible for him.

Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sun, Oct 21, 2012 at 11:59:36AM +0000, Artem S. Tashkinov wrote:
> http://imageshack.us/a/img685/9452/panicz.jpg
> 
> list_del corruption. prev->next should be ... but was ...

Btw, this is one of the debug options I told you to enable.

> I cannot show you more as I have no serial console to use :( and the kernel
> doesn't have enough time to push error messages to rsyslog and fsync
> /var/log/messages

I already told you how to catch that oops: boot with "pause_on_oops=600"
on the kernel command line and photograph the screen when the first oops
happens. This'll show us where the problem begins.

-- 
Regards/Gruss,
    Boris.

Re: Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

> 
> On Oct 21, 2012, Borislav Petkov <bp@alien8.de> wrote: 
> 
> On Sun, Oct 21, 2012 at 11:59:36AM +0000, Artem S. Tashkinov wrote:
> > http://imageshack.us/a/img685/9452/panicz.jpg
> > 
> > list_del corruption. prev->next should be ... but was ...
> 
> Btw, this is one of the debug options I told you to enable.
> 
> > I cannot show you more as I have no serial console to use :( and the kernel
> > doesn't have enough time to push error messages to rsyslog and fsync
> > /var/log/messages
> 
> I already told you how to catch that oops: boot with "pause_on_oops=600"
> on the kernel command line and photograph the screen when the first oops
> happens. This'll show us where the problem begins.

This option didn't have any effect, or maybe it's because it's such a serious crash
the kernel has no time to actually print an ooops/panic message.

dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221

I dumped them using this application:

$ cat scat.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#define O_LARGEFILE 0100000
#define BUFFER 4096
#define __USE_FILE_OFFSET64 1
#define __USE_LARGEFILE64 1

int main(int argc, char *argv[])
{
	int fd_out;
	int64_t bytes_read;
	void *buffer;

	if (argc!=2) {
		printf("Usage is: scat destination\n");
		return 1;
	}

	buffer = malloc(BUFFER * sizeof(char));
	if (buffer == NULL) {
		printf("Error: can't allocate buffers\n");
		return 2;		
	}
	memset(buffer, 0, BUFFER);

	printf("Dumping to \"%s\" ... ", argv[1]);
	fflush(NULL);

	if ((fd_out = open64(argv[1], O_WRONLY | O_LARGEFILE | O_SYNC | O_NOFOLLOW, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) == -1) {
		printf("Error: destination file can't be created\n");
		perror("open() ");
		return 2;
	}

	bytes_read = 1;

	while (bytes_read) {
		bytes_read = fread(buffer, sizeof(char), BUFFER, stdin);

		if (write(fd_out, (void *) buffer, bytes_read) != bytes_read)
		{
			printf("Error: can't write data to the destination file! Possibly a target disk is full\n");
			return 3;
		}

	}

	close(fd_out);

	printf(" OK\n");
	return 0;
}


I ran it this way: while :; do dmesg -c; done | scat /dev/sda11 (yes, straight to a hdd partition to eliminate a FS cache)

Don't judge me harshly - I'm not a programmer.

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 21:49, Artem S. Tashkinov wrote:
>>
>> On Oct 21, 2012, Borislav Petkov <bp@alien8.de> wrote: 
>>
>> On Sun, Oct 21, 2012 at 11:59:36AM +0000, Artem S. Tashkinov wrote:
>>> http://imageshack.us/a/img685/9452/panicz.jpg
>>>
>>> list_del corruption. prev->next should be ... but was ...
>>
>> Btw, this is one of the debug options I told you to enable.
>>
>>> I cannot show you more as I have no serial console to use :( and the kernel
>>> doesn't have enough time to push error messages to rsyslog and fsync
>>> /var/log/messages
>>
>> I already told you how to catch that oops: boot with "pause_on_oops=600"
>> on the kernel command line and photograph the screen when the first oops
>> happens. This'll show us where the problem begins.
> 
> This option didn't have any effect, or maybe it's because it's such a serious crash
> the kernel has no time to actually print an ooops/panic message.
> 
> dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221

Nice. Could you do that again with the patch applied I sent yo some
hours ago?


Thanks,
Daniel

Re: Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Borislav Petkov]

On Sun, Oct 21, 2012 at 07:49:01PM +0000, Artem S. Tashkinov wrote:
> I ran it this way: while :; do dmesg -c; done | scat /dev/sda11 (yes,
> straight to a hdd partition to eliminate a FS cache)

Well, I'm no fs guy but this should still go through the buffer cache. I
think the O_SYNC flag makes sure it all lands on the partition in time.
Oh well, it doesn't matter.

> Don't judge me harshly - I'm not a programmer.

If you wrote that and you're not a programmer, it certainly looks cool,
good job!.

 [ Btw, don't forget to free(buffer) at the end. ]

Also, there was a patchset recently which added a blockconsole method to
the kernel with which you can do something like that in a generic way.

Back to the issue at hand: it looks like ehci_hcd is causing some list
corruptions, maybe coming from the uvcvideo or whatever. I think the usb
people will have a better idea.

Btw, is there any particular reason you're running a 32-bit kernel?

Thanks.

-- 
Regards/Gruss,
    Boris.

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

> Nice. Could you do that again with the patch applied I sent yo some
> hours ago?

That patch was of no help - the system has crashed and I couldn't spot relevant
messages.

I've no idea what it means.

Artem

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 22:43, Artem S. Tashkinov wrote:
>> Nice. Could you do that again with the patch applied I sent yo some
>> hours ago?
> 
> That patch was of no help - the system has crashed and I couldn't spot relevant
> messages.
> 
> I've no idea what it means.

The sequence of driver callbacks issued on a stream start is

 .open()
 .hw_params()
 .prepare()
 .trigger()

If the ALSA part really causes this issue, the bad things happen either
in any of the driver callback functions or in the core underneath.

The patch I sent returns an error from the hw_params callback, and as
you still see the problem, that means that the crash happens before any
of the USB audio streaming really starts.

Could you try and return -EINVAL from snd_usb_capture_open() please?

If anyone has a better idea on how to debug this, please chime in.


Daniel

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 21.10.2012 22:43, Artem S. Tashkinov wrote:
>> Nice. Could you do that again with the patch applied I sent yo some
>> hours ago?
> 
> That patch was of no help - the system has crashed and I couldn't spot relevant
> messages.
> 
> I've no idea what it means.

The sequence of driver callbacks issued on a stream start is

 .open()
 .hw_params()
 .prepare()
 .trigger()

If the ALSA part really causes this issue, the bad things happen either
in any of the driver callback functions or in the core underneath.

The patch I sent returns an error from the hw_params callback, and as
you still see the problem, that means that the crash happens before any
of the USB audio streaming really starts.

Could you try and return -EINVAL from snd_usb_capture_open() please?

If anyone has a better idea on how to debug this, please chime in.


Daniel

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A strange Linux 3.6 bug: corrupted page table

[Artem S. Tashkinov]

Hello,

There's something strange going on with kernel 3.6.x:

https://bugzilla.redhat.com/show_bug.cgi?id=859188

My RAM is heavily tested - some time ago I ran memtest86 for 2 hours straight and
it showed no errors, besides neither my RAM, nor my CPU are overclocked.

All three people who experience this problem have Linux 3.6.x installed and this bug
didn't affect them when they ran Linux 3.5.x.

Best wishes,

Artem

Re: Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Sun, 21 Oct 2012, Artem S. Tashkinov wrote:

> dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221

The first problem in the log is endpoint list corruption.  Here's a 
debugging patch which should provide a little more information.

Alan Stern


 drivers/usb/core/hcd.c |   36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

Index: usb-3.6/drivers/usb/core/hcd.c
===================================================================
--- usb-3.6.orig/drivers/usb/core/hcd.c
+++ usb-3.6/drivers/usb/core/hcd.c
@@ -1083,6 +1083,8 @@ EXPORT_SYMBOL_GPL(usb_calc_bus_time);
 
 /*-------------------------------------------------------------------------*/
 
+static bool list_error;
+
 /**
  * usb_hcd_link_urb_to_ep - add an URB to its endpoint queue
  * @hcd: host controller to which @urb was submitted
@@ -1126,6 +1128,20 @@ int usb_hcd_link_urb_to_ep(struct usb_hc
 	 */
 	if (HCD_RH_RUNNING(hcd)) {
 		urb->unlinked = 0;
+
+		{
+			struct list_head *cur = &urb->ep->urb_list;
+			struct list_head *prev = cur->prev;
+
+			if (prev->next != cur && !list_error) {
+				list_error = true;
+				dev_err(&urb->dev->dev,
+					"ep %x list add corruption: %p %p %p\n",
+					urb->ep->desc.bEndpointAddress,
+					cur, prev, prev->next);
+			}
+		}
+
 		list_add_tail(&urb->urb_list, &urb->ep->urb_list);
 	} else {
 		rc = -ESHUTDOWN;
@@ -1193,6 +1209,26 @@ void usb_hcd_unlink_urb_from_ep(struct u
 {
 	/* clear all state linking urb to this dev (and hcd) */
 	spin_lock(&hcd_urb_list_lock);
+	{
+		struct list_head *cur = &urb->urb_list;
+		struct list_head *prev = cur->prev;
+		struct list_head *next = cur->next;
+
+		if (prev->next != cur && !list_error) {
+			list_error = true;
+			dev_err(&urb->dev->dev,
+				"ep %x list del corruption prev: %p %p %p\n",
+				urb->ep->desc.bEndpointAddress,
+				cur, prev, prev->next);
+		}
+		if (next->prev != cur && !list_error) {
+			list_error = true;
+			dev_err(&urb->dev->dev,
+				"ep %x list del corruption next: %p %p %p\n",
+				urb->ep->desc.bEndpointAddress,
+				cur, next, next->prev);
+		}
+	}
 	list_del_init(&urb->urb_list);
 	spin_unlock(&hcd_urb_list_lock);
 }

Re: Re: Re: Re: Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Sun, 21 Oct 2012, Artem S. Tashkinov wrote:

> dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221

The first problem in the log is endpoint list corruption.  Here's a 
debugging patch which should provide a little more information.

Alan Stern


 drivers/usb/core/hcd.c |   36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

Index: usb-3.6/drivers/usb/core/hcd.c
===================================================================
--- usb-3.6.orig/drivers/usb/core/hcd.c
+++ usb-3.6/drivers/usb/core/hcd.c
@@ -1083,6 +1083,8 @@ EXPORT_SYMBOL_GPL(usb_calc_bus_time);
 
 /*-------------------------------------------------------------------------*/
 
+static bool list_error;
+
 /**
  * usb_hcd_link_urb_to_ep - add an URB to its endpoint queue
  * @hcd: host controller to which @urb was submitted
@@ -1126,6 +1128,20 @@ int usb_hcd_link_urb_to_ep(struct usb_hc
 	 */
 	if (HCD_RH_RUNNING(hcd)) {
 		urb->unlinked = 0;
+
+		{
+			struct list_head *cur = &urb->ep->urb_list;
+			struct list_head *prev = cur->prev;
+
+			if (prev->next != cur && !list_error) {
+				list_error = true;
+				dev_err(&urb->dev->dev,
+					"ep %x list add corruption: %p %p %p\n",
+					urb->ep->desc.bEndpointAddress,
+					cur, prev, prev->next);
+			}
+		}
+
 		list_add_tail(&urb->urb_list, &urb->ep->urb_list);
 	} else {
 		rc = -ESHUTDOWN;
@@ -1193,6 +1209,26 @@ void usb_hcd_unlink_urb_from_ep(struct u
 {
 	/* clear all state linking urb to this dev (and hcd) */
 	spin_lock(&hcd_urb_list_lock);
+	{
+		struct list_head *cur = &urb->urb_list;
+		struct list_head *prev = cur->prev;
+		struct list_head *next = cur->next;
+
+		if (prev->next != cur && !list_error) {
+			list_error = true;
+			dev_err(&urb->dev->dev,
+				"ep %x list del corruption prev: %p %p %p\n",
+				urb->ep->desc.bEndpointAddress,
+				cur, prev, prev->next);
+		}
+		if (next->prev != cur && !list_error) {
+			list_error = true;
+			dev_err(&urb->dev->dev,
+				"ep %x list del corruption next: %p %p %p\n",
+				urb->ep->desc.bEndpointAddress,
+				cur, next, next->prev);
+		}
+	}
 	list_del_init(&urb->urb_list);
 	spin_unlock(&hcd_urb_list_lock);
 }

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 22.10.2012 17:17, Alan Stern wrote:
> On Sun, 21 Oct 2012, Artem S. Tashkinov wrote:
> 
>> dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221
> 
> The first problem in the log is endpoint list corruption.  Here's a 
> debugging patch which should provide a little more information.

Maybe add a BUG() after each of these dev_err() so we stop at the first
occurance and also see where we're coming from?




>  drivers/usb/core/hcd.c |   36 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
> 
> Index: usb-3.6/drivers/usb/core/hcd.c
> ===================================================================
> --- usb-3.6.orig/drivers/usb/core/hcd.c
> +++ usb-3.6/drivers/usb/core/hcd.c
> @@ -1083,6 +1083,8 @@ EXPORT_SYMBOL_GPL(usb_calc_bus_time);
>  
>  /*-------------------------------------------------------------------------*/
>  
> +static bool list_error;
> +
>  /**
>   * usb_hcd_link_urb_to_ep - add an URB to its endpoint queue
>   * @hcd: host controller to which @urb was submitted
> @@ -1126,6 +1128,20 @@ int usb_hcd_link_urb_to_ep(struct usb_hc
>  	 */
>  	if (HCD_RH_RUNNING(hcd)) {
>  		urb->unlinked = 0;
> +
> +		{
> +			struct list_head *cur = &urb->ep->urb_list;
> +			struct list_head *prev = cur->prev;
> +
> +			if (prev->next != cur && !list_error) {
> +				list_error = true;
> +				dev_err(&urb->dev->dev,
> +					"ep %x list add corruption: %p %p %p\n",
> +					urb->ep->desc.bEndpointAddress,
> +					cur, prev, prev->next);
> +			}
> +		}
> +
>  		list_add_tail(&urb->urb_list, &urb->ep->urb_list);
>  	} else {
>  		rc = -ESHUTDOWN;
> @@ -1193,6 +1209,26 @@ void usb_hcd_unlink_urb_from_ep(struct u
>  {
>  	/* clear all state linking urb to this dev (and hcd) */
>  	spin_lock(&hcd_urb_list_lock);
> +	{
> +		struct list_head *cur = &urb->urb_list;
> +		struct list_head *prev = cur->prev;
> +		struct list_head *next = cur->next;
> +
> +		if (prev->next != cur && !list_error) {
> +			list_error = true;
> +			dev_err(&urb->dev->dev,
> +				"ep %x list del corruption prev: %p %p %p\n",
> +				urb->ep->desc.bEndpointAddress,
> +				cur, prev, prev->next);
> +		}
> +		if (next->prev != cur && !list_error) {
> +			list_error = true;
> +			dev_err(&urb->dev->dev,
> +				"ep %x list del corruption next: %p %p %p\n",
> +				urb->ep->desc.bEndpointAddress,
> +				cur, next, next->prev);
> +		}
> +	}
>  	list_del_init(&urb->urb_list);
>  	spin_unlock(&hcd_urb_list_lock);
>  }
> 

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Mon, 22 Oct 2012, Daniel Mack wrote:

> On 22.10.2012 17:17, Alan Stern wrote:
> > On Sun, 21 Oct 2012, Artem S. Tashkinov wrote:
> > 
> >> dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221
> > 
> > The first problem in the log is endpoint list corruption.  Here's a 
> > debugging patch which should provide a little more information.
> 
> Maybe add a BUG() after each of these dev_err() so we stop at the first
> occurance and also see where we're coming from?

A BUG() at these points would crash the machine hard.  And where we
came from doesn't matter; what matters is the values in the pointers.

Alan Stern

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Mon, 22 Oct 2012, Daniel Mack wrote:

> On 22.10.2012 17:17, Alan Stern wrote:
> > On Sun, 21 Oct 2012, Artem S. Tashkinov wrote:
> > 
> >> dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221
> > 
> > The first problem in the log is endpoint list corruption.  Here's a 
> > debugging patch which should provide a little more information.
> 
> Maybe add a BUG() after each of these dev_err() so we stop at the first
> occurance and also see where we're coming from?

A BUG() at these points would crash the machine hard.  And where we
came from doesn't matter; what matters is the values in the pointers.

Alan Stern

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

On Oct 22, 2012, Alan Stern <stern@rowland.harvard.edu> wrote: 

> A BUG() at these points would crash the machine hard.  And where we
> came from doesn't matter; what matters is the values in the pointers.

OK, here's what the kernel prints with your patch:

usb 6.1.4: ep 86 list del corruption prev: e5103b54 e5103a94 e51039d4

A small delay before I got thousands of list_del corruption messages would
have been nice, but I managed to catch the message anyway.

Artem

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Mon, 22 Oct 2012, Artem S. Tashkinov wrote:

> OK, here's what the kernel prints with your patch:
> 
> usb 6.1.4: ep 86 list del corruption prev: e5103b54 e5103a94 e51039d4
> 
> A small delay before I got thousands of list_del corruption messages would
> have been nice, but I managed to catch the message anyway.

All right.  Here's a new patch, which will print more information and
will provide a 10-second delay.

For this to be useful, you should capture a usbmon trace at the same
time.  The relevant entries will show up in the trace shortly before
_and_ shortly after the error message appears.

Alan Stern

P.S.: It will help if you unplug as many of the other USB devices as
possible before running this test.



Index: usb-3.6/drivers/usb/core/hcd.c
===================================================================
--- usb-3.6.orig/drivers/usb/core/hcd.c
+++ usb-3.6/drivers/usb/core/hcd.c
@@ -1083,6 +1083,8 @@ EXPORT_SYMBOL_GPL(usb_calc_bus_time);
 
 /*-------------------------------------------------------------------------*/
 
+static bool list_error;
+
 /**
  * usb_hcd_link_urb_to_ep - add an URB to its endpoint queue
  * @hcd: host controller to which @urb was submitted
@@ -1193,6 +1195,25 @@ void usb_hcd_unlink_urb_from_ep(struct u
 {
 	/* clear all state linking urb to this dev (and hcd) */
 	spin_lock(&hcd_urb_list_lock);
+	{
+		struct list_head *cur = &urb->urb_list;
+		struct list_head *prev = cur->prev;
+		struct list_head *next = cur->next;
+
+		if (prev->next != cur && !list_error) {
+			list_error = true;
+			dev_err(&urb->dev->dev,
+				"ep %x list del corruption prev: %p %p %p %p %p\n",
+				urb->ep->desc.bEndpointAddress,
+				cur, prev, prev->next, next, next->prev);
+			dev_err(&urb->dev->dev,
+				"head %p urb %p urbprev %p urbnext %p\n",
+				&urb->ep->urb_list, urb,
+				list_entry(prev, struct urb, urb_list),
+				list_entry(next, struct urb, urb_list));
+			mdelay(10000);
+		}
+	}
 	list_del_init(&urb->urb_list);
 	spin_unlock(&hcd_urb_list_lock);
 }

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Mon, 22 Oct 2012, Artem S. Tashkinov wrote:

> OK, here's what the kernel prints with your patch:
> 
> usb 6.1.4: ep 86 list del corruption prev: e5103b54 e5103a94 e51039d4
> 
> A small delay before I got thousands of list_del corruption messages would
> have been nice, but I managed to catch the message anyway.

All right.  Here's a new patch, which will print more information and
will provide a 10-second delay.

For this to be useful, you should capture a usbmon trace at the same
time.  The relevant entries will show up in the trace shortly before
_and_ shortly after the error message appears.

Alan Stern

P.S.: It will help if you unplug as many of the other USB devices as
possible before running this test.



Index: usb-3.6/drivers/usb/core/hcd.c
===================================================================
--- usb-3.6.orig/drivers/usb/core/hcd.c
+++ usb-3.6/drivers/usb/core/hcd.c
@@ -1083,6 +1083,8 @@ EXPORT_SYMBOL_GPL(usb_calc_bus_time);
 
 /*-------------------------------------------------------------------------*/
 
+static bool list_error;
+
 /**
  * usb_hcd_link_urb_to_ep - add an URB to its endpoint queue
  * @hcd: host controller to which @urb was submitted
@@ -1193,6 +1195,25 @@ void usb_hcd_unlink_urb_from_ep(struct u
 {
 	/* clear all state linking urb to this dev (and hcd) */
 	spin_lock(&hcd_urb_list_lock);
+	{
+		struct list_head *cur = &urb->urb_list;
+		struct list_head *prev = cur->prev;
+		struct list_head *next = cur->next;
+
+		if (prev->next != cur && !list_error) {
+			list_error = true;
+			dev_err(&urb->dev->dev,
+				"ep %x list del corruption prev: %p %p %p %p %p\n",
+				urb->ep->desc.bEndpointAddress,
+				cur, prev, prev->next, next, next->prev);
+			dev_err(&urb->dev->dev,
+				"head %p urb %p urbprev %p urbnext %p\n",
+				&urb->ep->urb_list, urb,
+				list_entry(prev, struct urb, urb_list),
+				list_entry(next, struct urb, urb_list));
+			mdelay(10000);
+		}
+	}
 	list_del_init(&urb->urb_list);
 	spin_unlock(&hcd_urb_list_lock);
 }

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Christof Meerwald]

On Sat, 20 Oct 2012 23:15:17 +0000 (GMT), Artem S. Tashkinov wrote:
> It's almost definitely either a USB driver bug or video4linux driver bug:
>
> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
> https://lkml.org/lkml/2012/10/20/35
> https://lkml.org/lkml/2012/10/20/148

Not sure if it's related, but I am seeing a kernel freeze with a
usb-audio headset (connected via an external USB hub) on Linux 3.5.0
(Ubuntu 12.10) - see
http://comments.gmane.org/gmane.comp.voip.twinkle/3052 and
http://pastebin.com/aHGe1S1X for a self-contained C test.


Christof

-- 

http://cmeerw.org                              sip:cmeerw at cmeerw.org
mailto:cmeerw at cmeerw.org                   xmpp:cmeerw at cmeerw.org

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 03.11.2012 15:10, Christof Meerwald wrote:
> On Sat, 20 Oct 2012 23:15:17 +0000 (GMT), Artem S. Tashkinov wrote:
>> It's almost definitely either a USB driver bug or video4linux driver bug:
>>
>> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
>> https://lkml.org/lkml/2012/10/20/35
>> https://lkml.org/lkml/2012/10/20/148
> 
> Not sure if it's related, but I am seeing a kernel freeze with a
> usb-audio headset (connected via an external USB hub) on Linux 3.5.0
> (Ubuntu 12.10) - see

Does Ubuntu 12.10 really ship with 3.5.0? Not any more recent

> http://comments.gmane.org/gmane.comp.voip.twinkle/3052 and
> http://pastebin.com/aHGe1S1X for a self-contained C test.

Some questions:

 - Are you seeing the same issue with 3.6.x?
 - If you can reproduce this issue, could you paste the messages in
dmesg when this happens? Do they resemble to the list corruption that
was reported?
 - Do you see the same problem with 3.4?
 - Are you able to apply the patch Alan Stern posted in this thread earlier?

We should really sort this out, but I unfortunately lack a system or
setup that shows the bug.


Thanks,
Daniel

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Sven-Haegar Koch]

On Sat, 3 Nov 2012, Daniel Mack wrote:

> On 03.11.2012 15:10, Christof Meerwald wrote:
> > On Sat, 20 Oct 2012 23:15:17 +0000 (GMT), Artem S. Tashkinov wrote:
> >> It's almost definitely either a USB driver bug or video4linux driver bug:
> >>
> >> I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:
> >> https://lkml.org/lkml/2012/10/20/35
> >> https://lkml.org/lkml/2012/10/20/148
> > 
> > Not sure if it's related, but I am seeing a kernel freeze with a
> > usb-audio headset (connected via an external USB hub) on Linux 3.5.0
> > (Ubuntu 12.10) - see
> 
> Does Ubuntu 12.10 really ship with 3.5.0? Not any more recent

They ship 3.5.7 plus some more fixes, but call it 3.5.0-18.29

c'ya
sven-haegar

-- 
Three may keep a secret, if two of them are dead.
- Ben F.

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Christof Meerwald]

On Sat, Nov 03, 2012 at 03:16:36PM +0100, Daniel Mack wrote:
> On 03.11.2012 15:10, Christof Meerwald wrote:
> > http://comments.gmane.org/gmane.comp.voip.twinkle/3052 and
> > http://pastebin.com/aHGe1S1X for a self-contained C test.
> Some questions:
> 
>  - Are you seeing the same issue with 3.6.x?

I haven't tried it myself, but the other poster on
http://comments.gmane.org/gmane.comp.voip.twinkle/3052 mentions 3.6.2
(and 3.6.3)

>  - If you can reproduce this issue, could you paste the messages in
> dmesg when this happens? Do they resemble to the list corruption that
> was reported?

I am not seeing any kernel messages at all - the system just freezes
and not even the SysRq stuff works after that.

>  - Do you see the same problem with 3.4?

I upgraded from Ubuntu 12.04 (Linux 3.2) where I didn't see the
problem. However,
http://www.linuxquestions.org/questions/linux-desktop-74/twinkle-causes-linux-freeze-kernel-3-6-2-a-4175433799/
mentions 3.4.0

>  - Are you able to apply the patch Alan Stern posted in this thread earlier?

Unfortunately, I am not really in a position to apply kernel patches
at the moment.


> We should really sort this out, but I unfortunately lack a system or
> setup that shows the bug.

BTW, I have been able to reproduce the problem on a completely
different machine (also running Ubuntu 12.10, but different hardware).
The important thing appears to be that the USB audio device is
connected via a USB 2.0 hub (and then using the test code posted in
http://pastebin.com/aHGe1S1X specifying the audio device as
"plughw:Set" (or whatever it's called) seems to trigger the freeze).

So I guess another question is: do you have a USB headset connected
via a USB 2.0 hub and not seeing the problem or is your USB headset
not connected via a USB 2.0 hub? (of course, it would also be useful
if others could comment if they are seeing the problem with that setup
or not)


Christof

-- 

http://cmeerw.org                              sip:cmeerw at cmeerw.org
mailto:cmeerw at cmeerw.org                   xmpp:cmeerw at cmeerw.org

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Mon, 5 Nov 2012, Christof Meerwald wrote:

> BTW, I have been able to reproduce the problem on a completely
> different machine (also running Ubuntu 12.10, but different hardware).
> The important thing appears to be that the USB audio device is
> connected via a USB 2.0 hub (and then using the test code posted in
> http://pastebin.com/aHGe1S1X specifying the audio device as
> "plughw:Set" (or whatever it's called) seems to trigger the freeze).

Christof: Thank you for that reference, it was a big help.  After
crashing my system many times I have tracked the problem, at least in
part.  The patch below should prevent your system from freezing.


Takashi: It turns out the the problem is triggered when the audio
subsystem calls snd_usb_endpoint_stop() with wait == 0 and then calls
snd_usb_endpoint_start().  Since the driver doesn't wait for the
outstanding URBs to finish, it tries to submit them again while they
are still active.

Normally the USB core would realize this and fail the submission, but a
bug in ehci-hcd prevented this from happening.  (That bug is what the
patch below fixes.)  The URB gets added to the active list twice,
resulting in list corruption and an oops in interrupt context, which
freezes the system.

The user program that triggers the problem basically looks like this:

  snd_pcm_prepare(rec_pcm);
  snd_pcm_start(rec_pcm);
  snd_pcm_drop(rec_pcm);

  snd_pcm_prepare(rec_pcm);
  snd_pcm_start(rec_pcm);

The snd_pcm_drop call unlinks the URBs but does not wait for them to
finish.  Then the second snd_pcm_start call submits the URBs before
they have finished.

What is the right solution for this problem?

Alan Stern



Index: usb-3.7/drivers/usb/host/ehci-sched.c
===================================================================
--- usb-3.7.orig/drivers/usb/host/ehci-sched.c
+++ usb-3.7/drivers/usb/host/ehci-sched.c
@@ -1632,7 +1632,7 @@ static void itd_link_urb(
 
 	/* don't need that schedule data any more */
 	iso_sched_free (stream, iso_sched);
-	urb->hcpriv = NULL;
+	urb->hcpriv = stream;
 
 	++ehci->isoc_count;
 	enable_periodic(ehci);
@@ -2031,7 +2031,7 @@ static void sitd_link_urb(
 
 	/* don't need that schedule data any more */
 	iso_sched_free (stream, sched);
-	urb->hcpriv = NULL;
+	urb->hcpriv = stream;
 
 	++ehci->isoc_count;
 	enable_periodic(ehci);

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Takashi Iwai]

At Wed, 7 Nov 2012 12:34:43 -0500 (EST),
Alan Stern wrote:
> 
> On Mon, 5 Nov 2012, Christof Meerwald wrote:
> 
> > BTW, I have been able to reproduce the problem on a completely
> > different machine (also running Ubuntu 12.10, but different hardware).
> > The important thing appears to be that the USB audio device is
> > connected via a USB 2.0 hub (and then using the test code posted in
> > http://pastebin.com/aHGe1S1X specifying the audio device as
> > "plughw:Set" (or whatever it's called) seems to trigger the freeze).
> 
> Christof: Thank you for that reference, it was a big help.  After
> crashing my system many times I have tracked the problem, at least in
> part.  The patch below should prevent your system from freezing.
> 
> 
> Takashi: It turns out the the problem is triggered when the audio
> subsystem calls snd_usb_endpoint_stop() with wait == 0 and then calls
> snd_usb_endpoint_start().  Since the driver doesn't wait for the
> outstanding URBs to finish, it tries to submit them again while they
> are still active.
> 
> Normally the USB core would realize this and fail the submission, but a
> bug in ehci-hcd prevented this from happening.  (That bug is what the
> patch below fixes.)  The URB gets added to the active list twice,
> resulting in list corruption and an oops in interrupt context, which
> freezes the system.
> 
> The user program that triggers the problem basically looks like this:
> 
>   snd_pcm_prepare(rec_pcm);
>   snd_pcm_start(rec_pcm);
>   snd_pcm_drop(rec_pcm);
> 
>   snd_pcm_prepare(rec_pcm);
>   snd_pcm_start(rec_pcm);
> 
> The snd_pcm_drop call unlinks the URBs but does not wait for them to
> finish.  Then the second snd_pcm_start call submits the URBs before
> they have finished.
> 
> What is the right solution for this problem?

How about the patch below?  (It's for 3.6, and won't be applied cleanly
to 3.7, but easy to adapt.)


Takashi

---
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index d9de667..38830e2 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -35,6 +35,7 @@
 
 #define EP_FLAG_ACTIVATED	0
 #define EP_FLAG_RUNNING		1
+#define EP_FLAG_STOPPING	2
 
 /*
  * snd_usb_endpoint is a model that abstracts everything related to an
@@ -502,10 +503,19 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep)
 	if (alive)
 		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
 					alive, ep->ep_num);
+	clear_bit(EP_FLAG_STOPPING, &ep->flags);
 
 	return 0;
 }
 
+/* wait until urbs are really dropped */
+void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep)
+{
+	if (test_bit(EP_FLAG_STOPPING, &ep->flags))
+		wait_clear_urbs(ep);
+}
+
+
 /*
  * unlink active urbs.
  */
@@ -913,6 +923,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
 
 		if (wait)
 			wait_clear_urbs(ep);
+		else
+			set_bit(EP_FLAG_STOPPING, &ep->flags);
 	}
 }
 
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index cbbbdf2..c1540a4 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -16,6 +16,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
 			   int force, int can_sleep, int wait);
+void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct list_head *head);
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index f782ce1..aee3ab0 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -546,6 +546,11 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
 	if (snd_BUG_ON(!subs->data_endpoint))
 		return -EIO;
 
+	if (subs->sync_endpoint)
+		snd_usb_endpoint_sync_stop(subs->sync_endpoint);
+	if (subs->data_endpoint)
+		snd_usb_endpoint_sync_stop(subs->data_endpoint);
+
 	/* some unit conversions in runtime */
 	subs->data_endpoint->maxframesize =
 		bytes_to_frames(runtime, subs->data_endpoint->maxpacksize);

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Wed, 7 Nov 2012, Takashi Iwai wrote:

> > What is the right solution for this problem?
> 
> How about the patch below?  (It's for 3.6, and won't be applied cleanly
> to 3.7, but easy to adapt.)

I simplified your patch a little.  This is for 3.7, not 3.6.  I 
verified that it does fix the problem raised by the test program.

If you think this is okay, I'll submit it officially.

Alan Stern



Index: usb-3.7/sound/usb/endpoint.h
===================================================================
--- usb-3.7.orig/sound/usb/endpoint.h
+++ usb-3.7/sound/usb/endpoint.h
@@ -19,6 +19,7 @@ int snd_usb_endpoint_set_params(struct s
 int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
 			   int force, int can_sleep, int wait);
+void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct list_head *head);
Index: usb-3.7/sound/usb/pcm.c
===================================================================
--- usb-3.7.orig/sound/usb/pcm.c
+++ usb-3.7/sound/usb/pcm.c
@@ -576,6 +576,11 @@ static int snd_usb_pcm_prepare(struct sn
 		subs->need_setup_ep = false;
 	}
 
+	if (subs->sync_endpoint)
+		snd_usb_endpoint_sync_stop(subs->sync_endpoint);
+	if (subs->data_endpoint)
+		snd_usb_endpoint_sync_stop(subs->data_endpoint);
+
 	/* some unit conversions in runtime */
 	subs->data_endpoint->maxframesize =
 		bytes_to_frames(runtime, subs->data_endpoint->maxpacksize);
Index: usb-3.7/sound/usb/endpoint.c
===================================================================
--- usb-3.7.orig/sound/usb/endpoint.c
+++ usb-3.7/sound/usb/endpoint.c
@@ -481,7 +481,7 @@ __exit_unlock:
 /*
  *  wait until all urbs are processed.
  */
-static int wait_clear_urbs(struct snd_usb_endpoint *ep)
+void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep)
 {
 	unsigned long end_time = jiffies + msecs_to_jiffies(1000);
 	unsigned int i;
@@ -502,8 +502,6 @@ static int wait_clear_urbs(struct snd_us
 	if (alive)
 		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
 					alive, ep->ep_num);
-
-	return 0;
 }
 
 /*
@@ -556,7 +554,7 @@ static void release_urbs(struct snd_usb_
 
 	/* stop urbs */
 	deactivate_urbs(ep, force, 1);
-	wait_clear_urbs(ep);
+	snd_usb_endpoint_sync_stop(ep);
 
 	for (i = 0; i < ep->nurbs; i++)
 		release_urb_ctx(&ep->urb[i]);
@@ -833,7 +831,7 @@ int snd_usb_endpoint_start(struct snd_us
 	/* just to be sure */
 	deactivate_urbs(ep, 0, can_sleep);
 	if (can_sleep)
-		wait_clear_urbs(ep);
+		snd_usb_endpoint_sync_stop(ep);
 
 	ep->active_mask = 0;
 	ep->unlink_mask = 0;
@@ -917,7 +915,7 @@ void snd_usb_endpoint_stop(struct snd_us
 		ep->prepare_data_urb = NULL;
 
 		if (wait)
-			wait_clear_urbs(ep);
+			snd_usb_endpoint_sync_stop(ep);
 	}
 }
 
@@ -940,7 +938,7 @@ int snd_usb_endpoint_deactivate(struct s
 		return -EINVAL;
 
 	deactivate_urbs(ep, 1, 1);
-	wait_clear_urbs(ep);
+	snd_usb_endpoint_sync_stop(ep);
 
 	if (ep->use_count != 0)
 		return 0;

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Christof Meerwald]

On Wed, Nov 07, 2012 at 08:19:19PM +0100, Takashi Iwai wrote:
> How about the patch below?  (It's for 3.6, and won't be applied cleanly
> to 3.7, but easy to adapt.)

Thanks, that patch seems to fix the problem.


Christof

-- 

http://cmeerw.org                              sip:cmeerw at cmeerw.org
mailto:cmeerw at cmeerw.org                   xmpp:cmeerw at cmeerw.org

Re: Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Artem S. Tashkinov]

On Nov 8, 2012, Takashi Iwai  wrote: 

> How about the patch below?  (It's for 3.6, and won't be applied cleanly
> to 3.7, but easy to adapt.)

This patch fixes my problem, thank you!

You can add me as "Tested by".

Artem

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 07.11.2012 20:19, Takashi Iwai wrote:
> At Wed, 7 Nov 2012 12:34:43 -0500 (EST),
> Alan Stern wrote:
>>
>> On Mon, 5 Nov 2012, Christof Meerwald wrote:
>>
>>> BTW, I have been able to reproduce the problem on a completely
>>> different machine (also running Ubuntu 12.10, but different hardware).
>>> The important thing appears to be that the USB audio device is
>>> connected via a USB 2.0 hub (and then using the test code posted in
>>> http://pastebin.com/aHGe1S1X specifying the audio device as
>>> "plughw:Set" (or whatever it's called) seems to trigger the freeze).
>>
>> Christof: Thank you for that reference, it was a big help.  After
>> crashing my system many times I have tracked the problem, at least in
>> part.  The patch below should prevent your system from freezing.
>>
>>
>> Takashi: It turns out the the problem is triggered when the audio
>> subsystem calls snd_usb_endpoint_stop() with wait == 0 and then calls
>> snd_usb_endpoint_start().  Since the driver doesn't wait for the
>> outstanding URBs to finish, it tries to submit them again while they
>> are still active.
>>
>> Normally the USB core would realize this and fail the submission, but a
>> bug in ehci-hcd prevented this from happening.  (That bug is what the
>> patch below fixes.)  The URB gets added to the active list twice,
>> resulting in list corruption and an oops in interrupt context, which
>> freezes the system.
>>
>> The user program that triggers the problem basically looks like this:
>>
>>   snd_pcm_prepare(rec_pcm);
>>   snd_pcm_start(rec_pcm);
>>   snd_pcm_drop(rec_pcm);
>>
>>   snd_pcm_prepare(rec_pcm);
>>   snd_pcm_start(rec_pcm);
>>
>> The snd_pcm_drop call unlinks the URBs but does not wait for them to
>> finish.  Then the second snd_pcm_start call submits the URBs before
>> they have finished.


Thanks for investigating on this and to everyone who so quickyl tested
the provided patch. Seems like we got the right idea where the problem
really is.

However, the proposed patch seems wrong to me (see below).

>> What is the right solution for this problem?
> 
> How about the patch below?  (It's for 3.6, and won't be applied cleanly
> to 3.7, but easy to adapt.)
> 
> 
> Takashi
> 
> ---
> diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
> index d9de667..38830e2 100644
> --- a/sound/usb/endpoint.c
> +++ b/sound/usb/endpoint.c
> @@ -35,6 +35,7 @@
>  
>  #define EP_FLAG_ACTIVATED	0
>  #define EP_FLAG_RUNNING		1
> +#define EP_FLAG_STOPPING	2
>  
>  /*
>   * snd_usb_endpoint is a model that abstracts everything related to an
> @@ -502,10 +503,19 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep)
>  	if (alive)
>  		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
>  					alive, ep->ep_num);
> +	clear_bit(EP_FLAG_STOPPING, &ep->flags);
>  
>  	return 0;
>  }
>  
> +/* wait until urbs are really dropped */
> +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep)
> +{
> +	if (test_bit(EP_FLAG_STOPPING, &ep->flags))
> +		wait_clear_urbs(ep);
> +}
> +
> +
>  /*
>   * unlink active urbs.
>   */
> @@ -913,6 +923,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
>  
>  		if (wait)
>  			wait_clear_urbs(ep);
> +		else
> +			set_bit(EP_FLAG_STOPPING, &ep->flags);
>  	}
>  }
>  
> diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
> index cbbbdf2..c1540a4 100644
> --- a/sound/usb/endpoint.h
> +++ b/sound/usb/endpoint.h
> @@ -16,6 +16,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
>  int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
>  void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
>  			   int force, int can_sleep, int wait);
> +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep);
>  int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
>  int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
>  void snd_usb_endpoint_free(struct list_head *head);
> diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
> index f782ce1..aee3ab0 100644
> --- a/sound/usb/pcm.c
> +++ b/sound/usb/pcm.c
> @@ -546,6 +546,11 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
>  	if (snd_BUG_ON(!subs->data_endpoint))
>  		return -EIO;
>  
> +	if (subs->sync_endpoint)
> +		snd_usb_endpoint_sync_stop(subs->sync_endpoint);
> +	if (subs->data_endpoint)
> +		snd_usb_endpoint_sync_stop(subs->data_endpoint);

We can't simply stop both endpoints in the prepare callback. The essence
of the new reference-counting system is that we can use endpoints from
multiple contexts, and the logic inside endpoint.c will care about when
to start up and take down the urbs. The idea here is that endoints can
be run for many purposes, and the new implementation that was added
allows capture endpoints to run purely as timing reference for playback.

This bug needs to be fixed in the ehci controller, or we need some other
solution in the snd-usb-audio driver. I'll do some test once I'm back
from ELC.


Daniel

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Takashi Iwai]

At Thu, 08 Nov 2012 01:42:59 +0100,
Daniel Mack wrote:
> 
> On 07.11.2012 20:19, Takashi Iwai wrote:
> > At Wed, 7 Nov 2012 12:34:43 -0500 (EST),
> > Alan Stern wrote:
> >>
> >> On Mon, 5 Nov 2012, Christof Meerwald wrote:
> >>
> >>> BTW, I have been able to reproduce the problem on a completely
> >>> different machine (also running Ubuntu 12.10, but different hardware).
> >>> The important thing appears to be that the USB audio device is
> >>> connected via a USB 2.0 hub (and then using the test code posted in
> >>> http://pastebin.com/aHGe1S1X specifying the audio device as
> >>> "plughw:Set" (or whatever it's called) seems to trigger the freeze).
> >>
> >> Christof: Thank you for that reference, it was a big help.  After
> >> crashing my system many times I have tracked the problem, at least in
> >> part.  The patch below should prevent your system from freezing.
> >>
> >>
> >> Takashi: It turns out the the problem is triggered when the audio
> >> subsystem calls snd_usb_endpoint_stop() with wait == 0 and then calls
> >> snd_usb_endpoint_start().  Since the driver doesn't wait for the
> >> outstanding URBs to finish, it tries to submit them again while they
> >> are still active.
> >>
> >> Normally the USB core would realize this and fail the submission, but a
> >> bug in ehci-hcd prevented this from happening.  (That bug is what the
> >> patch below fixes.)  The URB gets added to the active list twice,
> >> resulting in list corruption and an oops in interrupt context, which
> >> freezes the system.
> >>
> >> The user program that triggers the problem basically looks like this:
> >>
> >>   snd_pcm_prepare(rec_pcm);
> >>   snd_pcm_start(rec_pcm);
> >>   snd_pcm_drop(rec_pcm);
> >>
> >>   snd_pcm_prepare(rec_pcm);
> >>   snd_pcm_start(rec_pcm);
> >>
> >> The snd_pcm_drop call unlinks the URBs but does not wait for them to
> >> finish.  Then the second snd_pcm_start call submits the URBs before
> >> they have finished.
> 
> 
> Thanks for investigating on this and to everyone who so quickyl tested
> the provided patch. Seems like we got the right idea where the problem
> really is.
> 
> However, the proposed patch seems wrong to me (see below).
> 
> >> What is the right solution for this problem?
> > 
> > How about the patch below?  (It's for 3.6, and won't be applied cleanly
> > to 3.7, but easy to adapt.)
> > 
> > 
> > Takashi
> > 
> > ---
> > diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
> > index d9de667..38830e2 100644
> > --- a/sound/usb/endpoint.c
> > +++ b/sound/usb/endpoint.c
> > @@ -35,6 +35,7 @@
> >  
> >  #define EP_FLAG_ACTIVATED	0
> >  #define EP_FLAG_RUNNING		1
> > +#define EP_FLAG_STOPPING	2
> >  
> >  /*
> >   * snd_usb_endpoint is a model that abstracts everything related to an
> > @@ -502,10 +503,19 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep)
> >  	if (alive)
> >  		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
> >  					alive, ep->ep_num);
> > +	clear_bit(EP_FLAG_STOPPING, &ep->flags);
> >  
> >  	return 0;
> >  }
> >  
> > +/* wait until urbs are really dropped */
> > +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep)
> > +{
> > +	if (test_bit(EP_FLAG_STOPPING, &ep->flags))
> > +		wait_clear_urbs(ep);
> > +}
> > +
> > +
> >  /*
> >   * unlink active urbs.
> >   */
> > @@ -913,6 +923,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
> >  
> >  		if (wait)
> >  			wait_clear_urbs(ep);
> > +		else
> > +			set_bit(EP_FLAG_STOPPING, &ep->flags);
> >  	}
> >  }
> >  
> > diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
> > index cbbbdf2..c1540a4 100644
> > --- a/sound/usb/endpoint.h
> > +++ b/sound/usb/endpoint.h
> > @@ -16,6 +16,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
> >  int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
> >  void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
> >  			   int force, int can_sleep, int wait);
> > +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep);
> >  int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
> >  int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
> >  void snd_usb_endpoint_free(struct list_head *head);
> > diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
> > index f782ce1..aee3ab0 100644
> > --- a/sound/usb/pcm.c
> > +++ b/sound/usb/pcm.c
> > @@ -546,6 +546,11 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
> >  	if (snd_BUG_ON(!subs->data_endpoint))
> >  		return -EIO;
> >  
> > +	if (subs->sync_endpoint)
> > +		snd_usb_endpoint_sync_stop(subs->sync_endpoint);
> > +	if (subs->data_endpoint)
> > +		snd_usb_endpoint_sync_stop(subs->data_endpoint);
> 
> We can't simply stop both endpoints in the prepare callback.

The new function doesn't stop the stream by itself but it just syncs
if the stream is being stopped beforehand.  So, it's safe to call it
there.

Maybe the name was confusing.  It should have been like
snd_usb_endpoint_sync_pending_stop() or such.


Takashi

> The essence
> of the new reference-counting system is that we can use endpoints from
> multiple contexts, and the logic inside endpoint.c will care about when
> to start up and take down the urbs. The idea here is that endoints can
> be run for many purposes, and the new implementation that was added
> allows capture endpoints to run purely as timing reference for playback.
> 
> This bug needs to be fixed in the ehci controller, or we need some other
> solution in the snd-usb-audio driver. I'll do some test once I'm back
> from ELC.
> 
> 
> Daniel
> 

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Takashi Iwai]

At Wed, 7 Nov 2012 15:37:17 -0500 (EST),
Alan Stern wrote:
> 
> On Wed, 7 Nov 2012, Takashi Iwai wrote:
> 
> > > What is the right solution for this problem?
> > 
> > How about the patch below?  (It's for 3.6, and won't be applied cleanly
> > to 3.7, but easy to adapt.)
> 
> I simplified your patch a little.

You can't drop the check of stopping endpoint.  As Daniel pointed,
endpoints might be still running when it's called.  I already did a
similar failure in the past, so this patch is a revised version with
the check for pending operations.

>  This is for 3.7, not 3.6.  I 
> verified that it does fix the problem raised by the test program.
> 
> If you think this is okay, I'll submit it officially.

Don't worry, my patch is also based on 3.7, too :)  3.6 patch was
provided just for convenience, testers seemed to have 3.6 systems.


thanks,

Takashi

> 
> Alan Stern
> 
> 
> 
> Index: usb-3.7/sound/usb/endpoint.h
> ===================================================================
> --- usb-3.7.orig/sound/usb/endpoint.h
> +++ usb-3.7/sound/usb/endpoint.h
> @@ -19,6 +19,7 @@ int snd_usb_endpoint_set_params(struct s
>  int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
>  void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
>  			   int force, int can_sleep, int wait);
> +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep);
>  int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
>  int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
>  void snd_usb_endpoint_free(struct list_head *head);
> Index: usb-3.7/sound/usb/pcm.c
> ===================================================================
> --- usb-3.7.orig/sound/usb/pcm.c
> +++ usb-3.7/sound/usb/pcm.c
> @@ -576,6 +576,11 @@ static int snd_usb_pcm_prepare(struct sn
>  		subs->need_setup_ep = false;
>  	}
>  
> +	if (subs->sync_endpoint)
> +		snd_usb_endpoint_sync_stop(subs->sync_endpoint);
> +	if (subs->data_endpoint)
> +		snd_usb_endpoint_sync_stop(subs->data_endpoint);
> +
>  	/* some unit conversions in runtime */
>  	subs->data_endpoint->maxframesize =
>  		bytes_to_frames(runtime, subs->data_endpoint->maxpacksize);
> Index: usb-3.7/sound/usb/endpoint.c
> ===================================================================
> --- usb-3.7.orig/sound/usb/endpoint.c
> +++ usb-3.7/sound/usb/endpoint.c
> @@ -481,7 +481,7 @@ __exit_unlock:
>  /*
>   *  wait until all urbs are processed.
>   */
> -static int wait_clear_urbs(struct snd_usb_endpoint *ep)
> +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep)
>  {
>  	unsigned long end_time = jiffies + msecs_to_jiffies(1000);
>  	unsigned int i;
> @@ -502,8 +502,6 @@ static int wait_clear_urbs(struct snd_us
>  	if (alive)
>  		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
>  					alive, ep->ep_num);
> -
> -	return 0;
>  }
>  
>  /*
> @@ -556,7 +554,7 @@ static void release_urbs(struct snd_usb_
>  
>  	/* stop urbs */
>  	deactivate_urbs(ep, force, 1);
> -	wait_clear_urbs(ep);
> +	snd_usb_endpoint_sync_stop(ep);
>  
>  	for (i = 0; i < ep->nurbs; i++)
>  		release_urb_ctx(&ep->urb[i]);
> @@ -833,7 +831,7 @@ int snd_usb_endpoint_start(struct snd_us
>  	/* just to be sure */
>  	deactivate_urbs(ep, 0, can_sleep);
>  	if (can_sleep)
> -		wait_clear_urbs(ep);
> +		snd_usb_endpoint_sync_stop(ep);
>  
>  	ep->active_mask = 0;
>  	ep->unlink_mask = 0;
> @@ -917,7 +915,7 @@ void snd_usb_endpoint_stop(struct snd_us
>  		ep->prepare_data_urb = NULL;
>  
>  		if (wait)
> -			wait_clear_urbs(ep);
> +			snd_usb_endpoint_sync_stop(ep);
>  	}
>  }
>  
> @@ -940,7 +938,7 @@ int snd_usb_endpoint_deactivate(struct s
>  		return -EINVAL;
>  
>  	deactivate_urbs(ep, 1, 1);
> -	wait_clear_urbs(ep);
> +	snd_usb_endpoint_sync_stop(ep);
>  
>  	if (ep->use_count != 0)
>  		return 0;
> 

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Daniel Mack]

On 08.11.2012 07:43, Takashi Iwai wrote:
> At Thu, 08 Nov 2012 01:42:59 +0100,
> Daniel Mack wrote:
>>
>> On 07.11.2012 20:19, Takashi Iwai wrote:
>>> At Wed, 7 Nov 2012 12:34:43 -0500 (EST),
>>> Alan Stern wrote:
>>>>
>>>> On Mon, 5 Nov 2012, Christof Meerwald wrote:
>>>>
>>>>> BTW, I have been able to reproduce the problem on a completely
>>>>> different machine (also running Ubuntu 12.10, but different hardware).
>>>>> The important thing appears to be that the USB audio device is
>>>>> connected via a USB 2.0 hub (and then using the test code posted in
>>>>> http://pastebin.com/aHGe1S1X specifying the audio device as
>>>>> "plughw:Set" (or whatever it's called) seems to trigger the freeze).
>>>>
>>>> Christof: Thank you for that reference, it was a big help.  After
>>>> crashing my system many times I have tracked the problem, at least in
>>>> part.  The patch below should prevent your system from freezing.
>>>>
>>>>
>>>> Takashi: It turns out the the problem is triggered when the audio
>>>> subsystem calls snd_usb_endpoint_stop() with wait == 0 and then calls
>>>> snd_usb_endpoint_start().  Since the driver doesn't wait for the
>>>> outstanding URBs to finish, it tries to submit them again while they
>>>> are still active.
>>>>
>>>> Normally the USB core would realize this and fail the submission, but a
>>>> bug in ehci-hcd prevented this from happening.  (That bug is what the
>>>> patch below fixes.)  The URB gets added to the active list twice,
>>>> resulting in list corruption and an oops in interrupt context, which
>>>> freezes the system.
>>>>
>>>> The user program that triggers the problem basically looks like this:
>>>>
>>>>   snd_pcm_prepare(rec_pcm);
>>>>   snd_pcm_start(rec_pcm);
>>>>   snd_pcm_drop(rec_pcm);
>>>>
>>>>   snd_pcm_prepare(rec_pcm);
>>>>   snd_pcm_start(rec_pcm);
>>>>
>>>> The snd_pcm_drop call unlinks the URBs but does not wait for them to
>>>> finish.  Then the second snd_pcm_start call submits the URBs before
>>>> they have finished.
>>
>>
>> Thanks for investigating on this and to everyone who so quickyl tested
>> the provided patch. Seems like we got the right idea where the problem
>> really is.
>>
>> However, the proposed patch seems wrong to me (see below).
>>
>>>> What is the right solution for this problem?
>>>
>>> How about the patch below?  (It's for 3.6, and won't be applied cleanly
>>> to 3.7, but easy to adapt.)
>>>
>>>
>>> Takashi
>>>
>>> ---
>>> diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
>>> index d9de667..38830e2 100644
>>> --- a/sound/usb/endpoint.c
>>> +++ b/sound/usb/endpoint.c
>>> @@ -35,6 +35,7 @@
>>>  
>>>  #define EP_FLAG_ACTIVATED	0
>>>  #define EP_FLAG_RUNNING		1
>>> +#define EP_FLAG_STOPPING	2
>>>  
>>>  /*
>>>   * snd_usb_endpoint is a model that abstracts everything related to an
>>> @@ -502,10 +503,19 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep)
>>>  	if (alive)
>>>  		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
>>>  					alive, ep->ep_num);
>>> +	clear_bit(EP_FLAG_STOPPING, &ep->flags);
>>>  
>>>  	return 0;
>>>  }
>>>  
>>> +/* wait until urbs are really dropped */
>>> +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep)
>>> +{
>>> +	if (test_bit(EP_FLAG_STOPPING, &ep->flags))
>>> +		wait_clear_urbs(ep);
>>> +}
>>> +
>>> +
>>>  /*
>>>   * unlink active urbs.
>>>   */
>>> @@ -913,6 +923,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
>>>  
>>>  		if (wait)
>>>  			wait_clear_urbs(ep);
>>> +		else
>>> +			set_bit(EP_FLAG_STOPPING, &ep->flags);
>>>  	}
>>>  }
>>>  
>>> diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
>>> index cbbbdf2..c1540a4 100644
>>> --- a/sound/usb/endpoint.h
>>> +++ b/sound/usb/endpoint.h
>>> @@ -16,6 +16,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
>>>  int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
>>>  void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
>>>  			   int force, int can_sleep, int wait);
>>> +void snd_usb_endpoint_sync_stop(struct snd_usb_endpoint *ep);
>>>  int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
>>>  int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
>>>  void snd_usb_endpoint_free(struct list_head *head);
>>> diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
>>> index f782ce1..aee3ab0 100644
>>> --- a/sound/usb/pcm.c
>>> +++ b/sound/usb/pcm.c
>>> @@ -546,6 +546,11 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
>>>  	if (snd_BUG_ON(!subs->data_endpoint))
>>>  		return -EIO;
>>>  
>>> +	if (subs->sync_endpoint)
>>> +		snd_usb_endpoint_sync_stop(subs->sync_endpoint);
>>> +	if (subs->data_endpoint)
>>> +		snd_usb_endpoint_sync_stop(subs->data_endpoint);
>>
>> We can't simply stop both endpoints in the prepare callback.
> 
> The new function doesn't stop the stream by itself but it just syncs
> if the stream is being stopped beforehand.  So, it's safe to call it
> there.
> 
> Maybe the name was confusing.  It should have been like
> snd_usb_endpoint_sync_pending_stop() or such.

Ah, right. I was errornously looking closer to Alan's patch but then
replied to yours. Alright then - thanks for explaining :)


Daniel

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Takashi Iwai]

At Thu, 08 Nov 2012 08:31:35 +0100,
Daniel Mack wrote:
(snip)
> >> We can't simply stop both endpoints in the prepare callback.
> > 
> > The new function doesn't stop the stream by itself but it just syncs
> > if the stream is being stopped beforehand.  So, it's safe to call it
> > there.
> > 
> > Maybe the name was confusing.  It should have been like
> > snd_usb_endpoint_sync_pending_stop() or such.
> 
> Ah, right. I was errornously looking closer to Alan's patch but then
> replied to yours. Alright then - thanks for explaining :)

OK, thanks for checking.

FWIW, below is the patch I applied now to for-linus branch.
Renamed the function, added the comment and put NULL check to the
function to simplify.


Takashi

---
From: Takashi Iwai <tiwai@suse.de>
Subject: [PATCH] ALSA: usb-audio: Fix crash at re-preparing the PCM stream

There are bug reports of a crash with USB-audio devices when PCM
prepare is performed immediately after the stream is stopped via
trigger callback.  It turned out that the problem is that we don't
wait until all URBs are killed.

This patch adds a new function to synchronize the pending stop
operation on an endpoint, and calls in the prepare callback for
avoiding the crash above.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=49181

Reported-and-tested-by: Artem S. Tashkinov <t.artem@lycos.com>
Cc: <stable@vger.kernel.org> [v3.6]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 13 +++++++++++++
 sound/usb/endpoint.h |  1 +
 sound/usb/pcm.c      |  3 +++
 3 files changed, 17 insertions(+)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 7f78c6d..34de6f2 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -35,6 +35,7 @@
 
 #define EP_FLAG_ACTIVATED	0
 #define EP_FLAG_RUNNING		1
+#define EP_FLAG_STOPPING	2
 
 /*
  * snd_usb_endpoint is a model that abstracts everything related to an
@@ -502,10 +503,20 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep)
 	if (alive)
 		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
 					alive, ep->ep_num);
+	clear_bit(EP_FLAG_STOPPING, &ep->flags);
 
 	return 0;
 }
 
+/* sync the pending stop operation;
+ * this function itself doesn't trigger the stop operation
+ */
+void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep)
+{
+	if (ep && test_bit(EP_FLAG_STOPPING, &ep->flags))
+		wait_clear_urbs(ep);
+}
+
 /*
  * unlink active urbs.
  */
@@ -918,6 +929,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
 
 		if (wait)
 			wait_clear_urbs(ep);
+		else
+			set_bit(EP_FLAG_STOPPING, &ep->flags);
 	}
 }
 
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 6376ccf..3d4c970 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -19,6 +19,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
 			   int force, int can_sleep, int wait);
+void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct list_head *head);
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 37428f7..5c12a3f 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -568,6 +568,9 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
 		goto unlock;
 	}
 
+	snd_usb_endpoint_sync_pending_stop(subs->sync_endpoint);
+	snd_usb_endpoint_sync_pending_stop(subs->data_endpoint);
+
 	ret = set_format(subs, subs->cur_audiofmt);
 	if (ret < 0)
 		goto unlock;
-- 
1.8.0

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Alan Stern]

On Thu, 8 Nov 2012, Takashi Iwai wrote:

> At Thu, 08 Nov 2012 08:31:35 +0100,
> Daniel Mack wrote:
> (snip)
> > >> We can't simply stop both endpoints in the prepare callback.
> > > 
> > > The new function doesn't stop the stream by itself but it just syncs
> > > if the stream is being stopped beforehand.  So, it's safe to call it
> > > there.
> > > 
> > > Maybe the name was confusing.  It should have been like
> > > snd_usb_endpoint_sync_pending_stop() or such.
> > 
> > Ah, right. I was errornously looking closer to Alan's patch but then
> > replied to yours. Alright then - thanks for explaining :)
> 
> OK, thanks for checking.
> 
> FWIW, below is the patch I applied now to for-linus branch.
> Renamed the function, added the comment and put NULL check to the
> function to simplify.

Thanks for fixing this.  Is your patch marked for -stable?

I have submitted a patch for ehci-hcd, so we should be all set.

Alan Stern

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

[Takashi Iwai]

At Thu, 8 Nov 2012 10:55:50 -0500 (EST),
Alan Stern wrote:
> 
> On Thu, 8 Nov 2012, Takashi Iwai wrote:
> 
> > At Thu, 08 Nov 2012 08:31:35 +0100,
> > Daniel Mack wrote:
> > (snip)
> > > >> We can't simply stop both endpoints in the prepare callback.
> > > > 
> > > > The new function doesn't stop the stream by itself but it just syncs
> > > > if the stream is being stopped beforehand.  So, it's safe to call it
> > > > there.
> > > > 
> > > > Maybe the name was confusing.  It should have been like
> > > > snd_usb_endpoint_sync_pending_stop() or such.
> > > 
> > > Ah, right. I was errornously looking closer to Alan's patch but then
> > > replied to yours. Alright then - thanks for explaining :)
> > 
> > OK, thanks for checking.
> > 
> > FWIW, below is the patch I applied now to for-linus branch.
> > Renamed the function, added the comment and put NULL check to the
> > function to simplify.
> 
> Thanks for fixing this.  Is your patch marked for -stable?

Yes.  I'm going to send a pull request to Linus tomorrow.

> I have submitted a patch for ehci-hcd, so we should be all set.

OK, thanks!


Takashi