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Date:	Fri, 13 Jul 2012 00:33:07 +0300
From:	Sami Liedes <sami.liedes@....fi>
To:	Vegard Nossum <vegardno@....uio.no>,
	Pekka Enberg <penberg@...nel.org>
Cc:	linux-kernel@...r.kernel.org
Subject: kmemcheck: Fatal error; system fails to boot when kmemcheck enabled

Hi,

Kernel 3.4.4 with kmemcheck enabled does not correctly boot on my
system, which is a x86-64, Core i7 Sandy Bridge computer with Asus
P8P67-EVO motherboard. The errors seem to be related to ACPI, but
there may be other things wrong. Userspace programs, particularly init
and in other cases some other binaries run from initramfs die with
SIGTRAP.

I have been able to boot far enough to get usable backtraces with at
least the following four sets of options (after some research, I think
the "noacpi" and "noioapic" parameters are no-ops; mentioning them for
completeness). The "Modules linked in:" lines say only <omitted>,
because the lines become too long and cause netconsole to eat most of
the messages. Here is the list from the running system without
kmemcheck (first words of /proc/kmemcheck):

   ip6_tables ebtable_nat ebtables tun cn parport_pc ppdev lp parport
   rfcomm bnep cpufreq_userspace cpufreq_stats cpufreq_powersave
   cpufreq_conservative binfmt_misc nfsd nfs nfs_acl auth_rpcgss
   fscache lockd sunrpc iptable_filter ipt_MASQUERADE ipt_REDIRECT
   iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack
   ip_tables x_tables xfs ext4 jbd2 mbcache radeon drm_kms_helper ttm
   drm i2c_algo_bit loop fuse kvm_intel kvm snd_hda_codec_hdmi
   snd_hda_codec_realtek snd_usb_audio snd_hda_intel snd_usbmidi_lib
   snd_hda_codec snd_hwdep joydev snd_pcm_oss snd_mixer_oss snd_pcm
   snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq
   acpi_cpufreq mperf ath3k coretemp eeepc_wmi button processor video
   asus_wmi sparse_keymap pci_hotplug snd_seq_device snd_timer mxm_wmi
   bluetooth wmi iTCO_wdt snd evdev rfkill psmouse serio_raw crc16
   intel_agp intel_gtt soundcore pcspkr i2c_i801 microcode i2c_core
   sha256_generic dm_crypt dm_mod raid456 async_raid6_recov
   async_memcpy async_pq async_xor xor async_tx raid6_pq md_mod nbd
   btrfs libcrc32c zlib_deflate sd_mod crc_t10dif firewire_ohci
   firewire_core r8169 crc_itu_t mii ahci libahci crc32c_intel
   ghash_clmulni_intel aesni_intel libata aes_x86_64 aes_generic
   cryptd scsi_mod e1000e thermal fan thermal_sys

=== noacpi (should be equivalent to no parameters) ===

Got this. Note that the pci_find_upstream_pcie_bridge warning also
happens on a healthy system without KMEMCHECK:

------------------------------------------------------------
WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (ffff880215822408)
00000000000000000c001000000000040000000002000000e109000000000000
 i i i i i i i i u u u u u u u u u u u u u u u u u u u u u u u u
                 ^

Pid: 1, comm: swapper/0 Not tainted 3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff81252660>] ? acpi_ns_walk_namespace+0x5f/0x173
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff812469ac>] ? acpi_ev_initialize_op_regions+0x41/0x8d
 [<ffffffff812469e7>] acpi_ev_initialize_op_regions+0x7c/0x8d
 [<ffffffff818b8838>] ? acpi_sleep_init+0xee/0xee
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
Hardware name: System Product Name
Modules linked in: <omitted>
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 <NMI>  [<ffffffff8103a7fa>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8103a845>] warn_slowpath_null+0x15/0x20
 [<ffffffff810330a9>] kmemcheck_fault+0xb9/0xd0
 [<ffffffff81033067>] kmemcheck_fault+0x77/0xd0
 [<ffffffff81032592>] ? kmemcheck_read+0x42/0x70
 [<ffffffff8142ffb5>] ? page_fault+0x25/0x30
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff81252660>] ? acpi_ns_walk_namespace+0x5f/0x173
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff812469ac>] ? acpi_ev_initialize_op_regions+0x41/0x8d
 [<ffffffff812469e7>] acpi_ev_initialize_op_regions+0x7c/0x8d
 [<ffffffff818b8838>] ? acpi_sleep_init+0xee/0xee
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
---[ end trace 4eaa2a86a8e2da23 ]---
ACPI: Executed 1 blocks of module-level executable AML code
------------[ cut here ]------------
WARNING: at kernel/smp.c:459 smp_call_function_many+0xbd/0x270()
Hardware name: System Product Name
Modules linked in: <omitted>
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 [<ffffffff8103a7fa>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8103336a>] ? kmemcheck_shadow_lookup+0x2a/0x70
 [<ffffffff8103a845>] warn_slowpath_null+0x15/0x20
 [<ffffffff810885bd>] smp_call_function_many+0xbd/0x270
 [<ffffffff8142ffb5>] ? page_fault+0x25/0x30
 [<ffffffff81031560>] ? leave_mm+0x40/0x40
 [<ffffffff81031560>] ? leave_mm+0x40/0x40
 [<ffffffff8108889d>] smp_call_function+0x1d/0x30
 [<ffffffff810888d3>] on_each_cpu+0x23/0x60
 [<ffffffff81031977>] flush_tlb_all+0x17/0x20
 [<ffffffff8110bac5>] __purge_vmap_area_lazy+0x165/0x1c0
 [<ffffffff81033067>] ? kmemcheck_fault+0x77/0xd0
 [<ffffffff8110bd85>] vm_unmap_aliases+0x165/0x180
 [<ffffffff8102e2e8>] change_page_attr_set_clr+0xb8/0x470
 [<ffffffff8142ffb5>] ? page_fault+0x25/0x30
 [<ffffffff8102eeda>] _set_memory_wb+0x2a/0x30
 [<ffffffff8102d262>] ioremap_change_attr+0x12/0x40
 [<ffffffff8102fcbd>] kernel_map_sync_memtype+0x7d/0xe0
 [<ffffffff8102cfe8>] __ioremap_caller+0x258/0x360
 [<ffffffff8102d11f>] ioremap_cache+0xf/0x20
 [<ffffffff814104a9>] acpi_os_map_memory+0xfc/0x15c
 [<ffffffff8124c739>] acpi_ex_system_memory_space_handler+0xe5/0x1e4
 [<ffffffff8124c654>] ? acpi_ex_do_logical_op+0x15f/0x15f
 [<ffffffff81246334>] acpi_ev_address_space_dispatch+0x1a5/0x1fb
 [<ffffffff812499b6>] acpi_ex_access_region+0x270/0x28d
 [<ffffffff81249d14>] acpi_ex_field_datum_io+0x10a/0x187
 [<ffffffff8124a061>] acpi_ex_write_with_update_rule+0xbd/0xc8
 [<ffffffff81249b24>] acpi_ex_insert_into_field+0x151/0x237
 [<ffffffff812496d5>] acpi_ex_write_data_to_field+0x1b9/0x1e8
 [<ffffffff8124d4f9>] acpi_ex_store_object_to_node+0x95/0xd8
 [<ffffffff8124d5f4>] acpi_ex_store+0xb8/0x238
 [<ffffffff8124ac87>] acpi_ex_opcode_1A_1T_1R+0x363/0x4b5
 [<ffffffff8124342d>] acpi_ds_exec_end_op+0xcf/0x3ee
 [<ffffffff8124335e>] ? acpi_ds_exec_begin_op+0x11e/0x11e
 [<ffffffff81254883>] acpi_ps_parse_loop+0x7c9/0x96e
 [<ffffffff81254df2>] acpi_ps_parse_aml+0x91/0x273
 [<ffffffff8125560c>] acpi_ps_execute_method+0x1c6/0x276
 [<ffffffff81250042>] acpi_ns_evaluate+0xbe/0x1a8
 [<ffffffff81250341>] acpi_ns_init_one_device+0x81/0xab
 [<ffffffff812526ba>] acpi_ns_walk_namespace+0xb9/0x173
 [<ffffffff812502c0>] ? acpi_ns_exec_module_code_list+0x194/0x194
 [<ffffffff818b8838>] ? acpi_sleep_init+0xee/0xee
 [<ffffffff81250612>] acpi_ns_initialize_devices+0xf8/0x146
 [<ffffffff8125c013>] acpi_initialize_objects+0x4a/0x53
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
---[ end trace 4eaa2a86a8e2da24 ]---
ERROR: kmemcheck: Fatal error

Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RIP: 0010:[<ffffffff81252660>]  [<ffffffff81252660>] acpi_ns_walk_namespace+0x5f/0x173
RSP: 0018:ffff8802158efd10  EFLAGS: 00010146
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 000000000000001e
RDX: 0000000000000000 RSI: 0000000000000282 RDI: 0000000000000282
RBP: ffff8802158efd70 R08: ffffffff81246140 R09: 0000000000000001
R10: 5f42535f158efd48 R11: 43534f5f158efc18 R12: ffff88021589aeb0
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88021589af00
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff880215820154 CR3: 000000000180c000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81032c4b>] kmemcheck_show+0x8b/0xa0
 [<ffffffff81033067>] kmemcheck_fault+0x77/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff812469e7>] acpi_ev_initialize_op_regions+0x7c/0x8d
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffff814389a4>] kernel_thread_helper+0x4/0x10
 [<ffffffffffffffff>] 0xffffffffffffffff

[...]

------------[ cut here ]------------
WARNING: at drivers/pci/search.c:44 pci_find_upstream_pcie_bridge+0x50/0x70()
Hardware name: System Product Name
Modules linked in: <omitted>
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 [<ffffffff8103a7fa>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8103a845>] warn_slowpath_null+0x15/0x20
 [<ffffffff81208770>] pci_find_upstream_pcie_bridge+0x50/0x70
 [<ffffffff8135754d>] intel_iommu_device_group+0x7d/0x100
 [<ffffffff8134da70>] ? bus_set_iommu+0x50/0x50
 [<ffffffff8134da9b>] add_iommu_group+0x2b/0x60
 [<ffffffff8129f17d>] bus_for_each_dev+0x4d/0x90
 [<ffffffff8134da5b>] bus_set_iommu+0x3b/0x50
 [<ffffffff818c34b4>] intel_iommu_init+0xae9/0xc1a
 [<ffffffff818939ee>] ? clean_rootfs+0x1c1/0x1c1
 [<ffffffff81896aa3>] ? memblock_find_dma_reserve+0x13d/0x13d
 [<ffffffff81896ab6>] pci_iommu_init+0x13/0x3e
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
---[ end trace 4eaa2a86a8e2da25 ]---

[...]

Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000005

Pid: 1, comm: init Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 [<ffffffff81427927>] panic+0xb5/0x1c1
 [<ffffffff8103ec6c>] do_exit+0x7bc/0x8a0
 [<ffffffff8103efea>] do_group_exit+0x3a/0xa0
 [<ffffffff8104d655>] get_signal_to_deliver+0x1a5/0x5c0
 [<ffffffff8104c0b0>] ? send_signal+0x40/0x80
 [<ffffffff81002260>] do_signal+0x60/0x950
 [<ffffffff8104c88c>] ? force_sig_info+0xdc/0x100
 [<ffffffff81002bd5>] do_notify_resume+0x65/0x80
 [<ffffffff814377fa>] int_signal+0x12/0x17
 [<ffffffff81426069>] ? run_init_process+0x1e/0x20
 [<ffffffff814260ad>] ? init_post+0x42/0xbb
 [<ffffffff81891ce0>] ? kernel_init+0x1be/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] ? kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
------------------------------------------------------------


=== "acpi=off noioapic" (should be equivalent to acpi=off) ===

Got these two backtraces:

------------------------------------------------------------
ERROR: kmemcheck: Fatal error

Pid: 597, comm: udevadm Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RIP: 0010:[<ffffffff81140d0f>]  [<ffffffff81140d0f>] address_space_init_once+0x6f/0x130
RSP: 0018:ffff8802123ef9a8  EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff880211d63e80 RCX: 0000000000000000
RDX: ffffffff81a18090 RSI: ffff880211d63d40 RDI: ffff880211d63ec0
RBP: ffff8802123ef9b8 R08: 0000000000000000 R09: 0000000000000010
R10: 000000000000000c R11: 000000000000000e R12: ffff880211d63d40
R13: ffff880211d63d40 R14: ffff880211d60000 R15: ffffea0008475800
FS:  00007f5983b707a0(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88021214eb00 CR3: 00000002123fa000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81032c4b>] kmemcheck_show+0x8b/0xa0
 [<ffffffff81033067>] kmemcheck_fault+0x77/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff81140e8e>] inode_init_once+0xbe/0x120
 [<ffffffff81140ef9>] init_once+0x9/0x10
 [<ffffffff8111cb3a>] setup_object.isra.55+0x5a/0x70
 [<ffffffff8111d907>] new_slab+0x1c7/0x2c0
 [<ffffffff81429967>] __slab_alloc.constprop.63+0x155/0x4ba
 [<ffffffff8111eed4>] kmem_cache_alloc+0xf4/0x160
 [<ffffffff81141129>] alloc_inode+0x59/0x90
 [<ffffffff811426b0>] iget_locked+0xb0/0x190
 [<ffffffff811913f2>] sysfs_get_inode+0x12/0x150
 [<ffffffff81193436>] sysfs_lookup+0x76/0x120
 [<ffffffff8113377c>] __lookup_hash+0x5c/0x120
 [<ffffffff81135b30>] do_lookup+0x2a0/0x350
 [<ffffffff81136b04>] path_lookupat+0x114/0x700
 [<ffffffff8113711c>] do_path_lookup+0x2c/0xc0
 [<ffffffff811385f8>] user_path_at_empty+0x58/0xa0
 [<ffffffff8113864c>] user_path_at+0xc/0x10
 [<ffffffff8112dda0>] vfs_fstatat+0x30/0x70
 [<ffffffff8112de16>] vfs_stat+0x16/0x20
 [<ffffffff8112dfe5>] sys_newstat+0x15/0x30
 [<ffffffff8143753d>] system_call_fastpath+0x1a/0x1f
 [<ffffffffffffffff>] 0xffffffffffffffff

[...]

ERROR: kmemcheck: Fatal error

Pid: 631, comm: modprobe Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RIP: 0010:[<ffffffff81430c46>]  [<ffffffff81430c46>] nmi_handle.isra.0+0x46/0x80
RSP: 0018:ffff88021ec07e78  EFLAGS: 00010046
RAX: ffff88021580e580 RBX: ffff88021580e580 RCX: 0000000000000001
RDX: ffffffff81432d0b RSI: ffff88021ec07ef8 RDI: 0000000000000000
RBP: ffff88021ec07eb8 R08: 00003ffffffff000 R09: ffff880000000000
R10: 00000000116e0e01 R11: 00000000fffffff4 R12: 0000000000000000
R13: ffffffff81816828 R14: 0000000000000000 R15: ffff88021ec07ef8
FS:  00007fe3eecd9700(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88021214eb00 CR3: 00000002119ad000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81032850>] kmemcheck_access+0x1d0/0x440
 [<ffffffff8103308d>] kmemcheck_fault+0x9d/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff81430d60>] do_nmi+0xe0/0x310
 [<ffffffff814302dc>] end_repeat_nmi+0x1a/0x1e
 [<ffffffff8103305f>] kmemcheck_fault+0x6f/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff811e1517>] kobject_uevent_env+0x437/0x640
 [<ffffffff811e172b>] kobject_uevent+0xb/0x10
 [<ffffffff8129e63e>] device_add+0x5ae/0x6a0
 [<ffffffffa00e8269>] scsi_add_host_with_dma+0x99/0x290 [scsi_mod]
 [<ffffffffa0174274>] ata_scsi_add_hosts+0xa4/0x130 [libata]
 [<ffffffffa016f5c3>] ata_host_register+0xf3/0x290 [libata]
 [<ffffffffa016f82e>] ata_host_activate+0xce/0x110 [libata]
 [<ffffffffa02329a7>] ahci_init_one+0x627/0xa2c [ahci]
 [<ffffffff8120803f>] pci_device_probe+0xaf/0x130
 [<ffffffff812a106d>] driver_probe_device+0x8d/0x3a0
 [<ffffffff812a141b>] __driver_attach+0x9b/0xa0
 [<ffffffff8129f17d>] bus_for_each_dev+0x4d/0x90
 [<ffffffff812a09d9>] driver_attach+0x19/0x20
 [<ffffffff812a0658>] bus_add_driver+0x1a8/0x2a0
 [<ffffffff812a1882>] driver_register+0x72/0x150
 [<ffffffff81207a09>] __pci_register_driver+0x59/0xd0
 [<ffffffffa023901e>] ahci_init+0x1e/0x20 [ahci]
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff8108d91e>] sys_init_module+0x109e/0x2070
 [<ffffffff8143753d>] system_call_fastpath+0x1a/0x1f
 [<ffffffffffffffff>] 0xffffffffffffffff
------------------------------------------------------------


=== noacpi pci=noacpi (eqv to "pci=noacpi") ===

------------------------------------------------------------
WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (ffff880215822408)
00000000000000000c001000000000040000000002000000e109000000000000
 i i i i i i i i u u u u u u u u u u u u u u u u u u u u u u u u
                 ^

Pid: 1, comm: swapper/0 Not tainted 3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RIP: 0010:[<ffffffff81353001>]  [<ffffffff81353001>] qi_submit_sync+0x2d1/0x3f0
RSP: 0018:ffff8802158efcf0  EFLAGS: 00010002
RAX: ffff880215822408 RBX: 0000000000000086 RCX: 0000000200000025
RDX: ffff880215822400 RSI: ffffc9000000c000 RDI: ffff8802158fe050
RBP: ffff8802158efd60 R08: ffffea000856c000 R09: 0000000000115c01
R10: ffff8802158fe000 R11: ffff8802158fe010 R12: 0000000000000000
R13: ffff88021581a7c0 R14: 0000000000000004 R15: ffff8802158ec180
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff88021581608c CR3: 000000000180c000 CR4: 00000000000406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff81353144>] qi_global_iec+0x24/0x30
 [<ffffffff81357d63>] iommu_set_intr_remapping+0xd3/0x170
 [<ffffffff818c3bbd>] enable_intr_remapping+0x20d/0x269
 [<ffffffff8189e85d>] enable_IR+8189eb4d>] enable_IR_x2apic+0x92/0x298
 [<ffffffff818a0ab3>] default_setup_apic_routing+0x12/0x78
 [<ffffffff8189c99c>] native_smp_prepare_cpus+0x2ba/0x2ee
 [<ffffffff81891bab>] kernel_init+0x89/0x1be
kmemcheck: Limiting number of CPUs to 1.
NMI watchdog: enabled, takes one hw-pmu counter.
PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
Hardware name: System Product Name
 [<ffffffff812836c2>] ? vt_console_print+0xa2/0x3a0
 [<ffffffff81427a6f>] printk+0x3c/0x3e
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
---[ end trace 4eaa2a86a8e2da22 ]---
 [<ffffffff810330a9>] kmemcheck_fault+0xb9/0xd0
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff8142ff90>] ? general_protection+0x30/0x30
 [<ffffffff8142ff90>] ? general_protection+0x30/0x30
 [<ffffffff8142ff90>] ? general_protection+0x30/0x30
 <<EOE>>  [<ffffffff81252660>] ? acpi_ns_walk_namespace+0x5f/0x173
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff812469ac>] ? acpi_ev_initialize_op_regions+0x41/0x8d
 [<ffffffff812469e7>] acpi_ev_initialize_op_regions+0x7c/0x8d
 [<ffffffff818b8838>] ? acpi_sleep_init+0xee/0xee
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
RSP: 0018:ffff8802158efbc8  EFLAGS: 00010286
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81250341>] acpi_ns_init_one_device+0x81/0xab
 [<ffffffff8125c013>] acpi_initialize_objects+0x4a/0x53
ACPI: SSDT 00000000df0ee018 0083B (v01  PmRef  Cpu0Cst 00003001 INTL 20051117)
ACPI: SSDT           (null) 00119 (v01  PmRef    ApCst 00003000 INTL 20051117)
R10: 5f315353158ef888 R11: 5f315353158ef888 R12: 0000000000000000
 [<ffffffff81032c4b>] kmemcheck_show+0x8b/0xa0
 [<ffffffff81254df2>] acpi_ps_parse_aml+0x91/0x273
 [<ffffffffffffffff>] 0xffffffffffffffff
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000246
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
ACPI: Power Resource [FN00] (off)
usbcore: registered new device driver usb
pci 0000:00:1c.0: PCI bridge to [bus 02-02]
pci 0000:00:1c.7: PCI bridge to [bus 08-08]
system 00:05: [io  0x0200-0x020f] has been reserved
system 00:05: [io  0xffff] has been reserved
ERROR: kmemcheck: Fatal error
R10: 0000000000000000 R11: 42334f49158efa48 R12: 0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [<ffffffff810324d9>] kmemcheck_read_strict+0x29/0xa0
 [<ffffffff8124f8cf>] acpi_ns_lookup+0x203/0x339
 [<ffffffff81256d16>] acpi_walk_resources+0x62/0xce
 [<ffffffff81252aa4>] acpi_ns_get_device_callback+0x144/0x15e
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RBP: ffff88021ec07d68 R08: 0000000000000000 R09: ffff880000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88021ec07dc0 R14: ffff880215822800 R15: 0000000000000021
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff880215820154 CR3: 000000000180c000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81032850>] kmemcheck_access+0x1d0/0x440
 [<ffffffff8103308d>] kmemcheck_fault+0x9d/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff810179f1>] intel_pmu_save_and_restart+0x11/0x20
 [<ffffffff81017b5d>] intel_pmu_handle_irq+0x15d/0x320
 [<ffffffff814313ed>] perf_event_nmi_handler+0x1d/0x20
 [<ffffffff81430c49>] nmi_handle.isra.0+0x49/0x80
 [<ffffffff81430d60>] do_nmi+0xe0/0x310
 [<ffffff0000000000004 R15: ffff8802158ec180
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff88021581608c CR3: 000000000180c000 CR4: 00000000000406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff81353144>] qi_global_iec+0x24/0x30
 [<ffffffff81357d63>] iommu_set_intr_remapping+0xd3/0x170
 [<ffffffff818c3bbd>] enable_intr_remapping+0x20d/0x269
 [<ffffffff8189e85d>] enable_IR+0x5a/0x62
 [<ffffffff8189eb4d>] enable_IR_x2apic+0x92/0x298
 [<ffffffff818a0ab3>] default_setup_apic_routing+0x12/0x78
 [<ffffffff8189c99c>] native_smp_prepare_cpus+0x2ba/0x2ee
 [<ffffffff81891bab>] kernel_init+0x89/0x1be
kmemcheck: Limiting number of CPUs to 1.
NMI watchdog: enabled, takes one hw-pmu counter.
PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
Hardware name: System Product Name
 [<ffffffff812836c2>] ? vt_console_print+0xa2/0x3a0
 [<ffffffff81427a6f>] printk+0x3c/0x3e
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
---[ end trace 4eaa2a86a8e2da22 ]---
 [<ffffffff810330a9>] kmemcheck_fault+0xb9/0xd0
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff8142ff90>] ? general_protection+0x30/0x30
 [<ffffffff8142ff90>] ? general_protection+0x30/0x30
 [<ffffffff8142ff90>] ? general_protection+0x30/0x30
 <<EOE>>  [<ffffffff81252660>] ? acpi_ns_walk_namespace+0x5f/0x173
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff81246881>] acpi_ev_execute_reg_methods+0x3d/0x127
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff812469ac>] ? acpi_ev_initialize_op_regions+0x41/0x8d
 [<ffffffff812469e7>] acpi_ev_initialize_op_regions+0x7c/0x8d
 [<ffffffff818b8838>] ? acpi_sleep_init+0xee/0xee
 [<ffffffff8125bfe8>] acpi_initialize_objects+0x1f/0x53
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
RSP: 0018:ffff8802158efbc8  EFLAGS: 00010286
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81250341>] acpi_ns_init_one_device+0x81/0xab
 [<ffffffff8125c013>] acpi_initialize_objects+0x4a/0x53
ACPI: SSDT 00000000df0ee018 0083B (v01  PmRef  Cpu0Cst 00003001 INTL 20051117)
ACPI: SSDT           (null) 00119 (v01  PmRef    ApCst 00003000 INTL 20051117)
R10: 5f315353158ef888 R11: 5f315353158ef888 R12: 0000000000000000
 [<ffffffff81032c4b>] kmemcheck_show+0x8b/0xa0
 [<ffffffff81254df2>] acpi_ps_parse_aml+0x91/0x273
 [<ffffffffffffffff>] 0xffffffffffffffff
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000246
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
ACPI: Power Resource [FN00] (off)
usbcore: registered new device driver usb
pci 0000:00:1c.0: PCI bridge to [bus 02-02]
pci 0000:00:1c.7: PCI bridge to [bus 08-08]
system 00:05: [io  0x0200-0x020f] has been reserved
system 00:05: [io  0xffff] has been reserved
ERROR: kmemcheck: Fatal error
R10: 0000000000000000 R11: 42334f49158efa48 R12: 0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [<ffffffff810324d9>] kmemcheck_read_strict+0x29/0xa0
 [<ffffffff8124f8cf>] acpi_ns_lookup+0x203/0x339
 [<ffffffff81256d16>] acpi_walk_resources+0x62/0xce
 [<ffffffff81252aa4>] acpi_ns_get_device_callback+0x144/0x15e
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RBP: ffff88021ec07d68 R08: 0000000000000000 R09: ffff880000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88021ec07dc0 R14: ffff880215822800 R15: 0000000000000021
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff880215820154 CR3: 000000000180c000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00fffff8124f8cf>] acpi_ns_lookup+0x203/0x339
 [<ffffffff81253870>] acpi_ps_get_next_namepath+0x74/0x1cf
 [<ffffffff81254570>] acpi_ps_parse_loop+0x4b6/0x96e
 [<ffffffff81254df2>] acpi_ps_parse_aml+0x91/0x273
 [<ffffffff8125560c>] acpi_ps_execute_method+0x1c6/0x276
 [<ffffffff81250042>] acpi_ns_evaluate+0xbe/0x1a8
 [<ffffffff81259cfa>] acpi_ut_evaluate_object+0x7e/0x1a7
 [<ffffffff81256a74>] acpi_rs_get_method_data+0x1a/0x40
 [<ffffffff81256d16>] acpi_walk_resources+0x62/0xce
 [<ffffffff81264e2f>] pnpacpi_parse_allocated_resource+0x3f/0x70
 [<ffffffff818ba200>] pnpacpi_add_device_handler+0x193/0x211
 [<ffffffff81252aa4>] acpi_ns_get_device_callback+0x144/0x15e
 [<ffffffff812526ba>] acpi_ns_walk_namespace+0xb9/0x173
 [<ffffffff81252949>] acpi_get_devices+0x61/0x78

[...]

IOMMU: Setting identity map for device 0000:00:1a.0 [0xdf0d6000 - 0xdf0e4fff]
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
 [<ffffffff8134da5b>] bus_set_iommu+0x3b/0x50
audit: initializing netlink socket (disabled)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
RAX: 0000000000000124 RBX: 0000000000000009 RCX: 0000000000000124
CR2: ffff880215820154 CR3: 000000000180c000 CR4: 00000000000407f0
 [<ffffffff811c8aa0>] add_disk+0x190/0x460

[...]

ERROR: kmemcheck: Fatal error
RBP: ffff88021ec03dd8 R08: ffff88021ec12140 R09: 0000000000000000
 [<ffffffff81891b15>] start_kernel+0x334/0x341
generic-usb 0003:046D:C501.0004: input,hidraw3: USB HID v1.10 Mouse [Logitech USB Receiver] on usb-0000:00:1d.0-1.3/input0
console [netcon0] enabled
netconsole: network logging started
rtc_cmos 00:06: setting system clock to 2012-07-12 19:00:02 UTC (1342119602)
Freeing unused kernel memory: 512k freed
Write protecting the kernel read-only data: 8192k
Freeing unused kernel memory: 1792k freed
Freeing unused kernel memory: 52k freed
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000005

Pid: 1, comm: init Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 [<ffffffff81427927>] panic+0xb5/0x1c1
 [<ffffffff8103ec6c>] do_exit+0x7bc/0x8a0
 [<ffffffff8103efea>] do_group_exit+0x3a/0xa0
 [<ffffffff8104d655>] get_signal_to_deliver+0x1a5/0x5c0
 [<ffffffff8104c0b0>] ? send_signal+0x40/0x80
 [<ffffffff81002260>] do_signal+0x60/0x950
 [<ffffffff8104c88c>] ? force_sig_info+0xdc/0x100
 [<ffffffff81002bd5>] do_notify_resume+0x65/0x80
 [<ffffffff814377fa>] int_signal+0x12/0x17
 [<ffffffff81426069>] ? run_init_process+0x1e/0x20
 [<ffffffff814260ad>] ? init_post+0x42/0xbb
 [<ffffffff81891ce0>] ? kernel_init+0x1be/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] ? kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
------------------------------------------------------------

=== noapic pci=noacpi noacpi (eqv to "noapic pci=noacpi") ===

------------------------------------------------------------
------------[ cut here ]------------
------------[ cut here ]------------
WARNING: at arch/x86/mm/kmemcheck/kmemcheck.c:634 kmemcheck_fault+0xb9/0xd0()
Hardware name: System Product Name
Modules linked in: <omitted>
Pid: 1, comm: swapper/0 Not tainted 3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 <NMI>  [<ffffffff8103a7fa>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8103a845>] warn_slowpath_null+0x15/0x20
 [<ffffffff810330a9>] kmemcheck_fault+0xb9/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff812836c2>] ? vt_console_print+0xa2/0x3a0
 [<ffffffff81283687>] ? vt_console_print+0x67/0x3a0
 [<ffffffff8103a7b9>] warn_slowpath_common+0x39/0xb0
 [<ffffffff81430c46>] ? nmi_handle.isra.0+0x46/0x80
 [<ffffffff8142fb8a>] ? _raw_spin_lock_irqsave+0x1a/0x40
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
 [<ffffffff81430d60>] do_nmi+0xe0/0x310
 [<ffffffff81246140>] ? acpi_ev_execute_reg_method+0x120/0x120
 [<ffffffff818b894b>] acpi_init+0x113/0x28f
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
------------[ cut here ]------------
 [<ffffffff8103336a>] ? kmemcheck_shadow_lookup+0x2a/0x70
 [<ffffffff8103a845>] warn_slowpath_null+0x15/0x20
 [<ffffffff810885bd>] smp_call_function_many+0xbd/0x270
 [<ffffffff8142ffb5>] ? page_fault+0x25/0x30
 [<ffffffff81031560>] ? leave_mm+0x40/0x40
 [<ffffffff81031560>] ? leave_mm+0x40/0x40
 [<ffffffff8108889d>] smp_call_function+0x1d/0x30
 [<ffffffff810888d3>] on_each_cpu+0x23/0x60
 [<ffffffff81031977>] flush_tlb_all+0x17/0x20
 [<ffffffff8110bac5>] __purge_vmap_area_lazy+0x165/0x1c0
 [<ffffffff81033067>] ? kmemcheck_fault+0x77/0xd0
 [<ffffffff8110bd85>] vm_unmap_aliases+0x165/0x180
 [<ffffffff8102e2e8>] change_page_attr_set_clr+0xb8/0x470
 [<ffffffff8142ffb5>] ? page_fault+0x25/0x30
 [<ffffffff8102eeda>] _set_memory_wb+0x2a/0x30
 [<ffffffff812499b6>] acpi_ex_access_region+0x270/0x28d
 [<ffffffff8124342d>] acpi_ds_exec_end_op+0xcf/0x3ee
RSP: 0018:ffff8802158ef070  EFLAGS: 00010082
RBP: ffff8802158ef0c0 R08: 0000000000000000 R09: 0000000000000000
 [<ffffffff81032c4b>] kmemcheck_show+0x8b/0xa0
 [<ffffffff81005877>] show_trace_log_lvl+0x57/0x70
 [<ffffffff81031977>] flush_tlb_all+0x17/0x20
 [<ffffffff814104a9>] acpi_os_map_memory+0xfc/0x15c
ACPI: SSDT 00000000df0f0c18 00119 (v01  PmRef    ApCst 00003000 INTL 20051117)
RAX: 0000000000000002 RBX: ffff880215a8f798 RCX: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff8124358f>] acpi_ds_exec_end_op+0x231/0x3ee
 [<ffffffff81252ca6>] acpi_evaluate_object+0x122/0x22e
 [<ffffffffffffffff>] 0xffffffffffffffff
R10: ffffffffffffffff R11: 54534f49158ef8c8 R12: ffff8802158ef8c8
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff8124f8cf>] acpi_ns_lookup+0x203/0x339
 [<ffffffff81252ca6>] acpi_evaluate_object+0x122/0x22e
 [<ffffffff8123b385>] acpi_bus_scan+0x56/0x77
 [<ffffffffffffffff>] 0xffffffffffffffff
CR2: ffff880215820154 CR3: 000000000180c000 CR4: 00000000000407f0
 [<ffffffff814302dc>] end_repeat_nmi+0x1a/0x1e
 [<ffffffff81252560>] acpi_ns_get_node+0x3f/0x9f
 [<ffffffff81252b51>] acpi_walk_namespace+0x93/0xc6
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffffffffffff>] 0xffffffffffffffff
ERROR: kmemcheck: Fatal error

Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
RIP: 0010:[<ffffffff81011f3a>]  [<ffffffff81011f3a>] x86_perf_event_update+0x2a/0xc0
RSP: 0018:ffff88021ec07d20  EFLAGS: 00010002
RAX: 00000000ffffffff RBX: 0000000000000010 RCX: 0000000000000390
RDX: 0000000000000021 RSI: 0000000000000040 RDI: ffff880215822400
RBP: ffff88021ec07d68 R08: 0000000000000000 R09: ffff880000000000
R10: ffffffffffffffff R11: 0000000000000000 R12: 0000000000000001
R13: ffff88021ec07dc0 R14: ffff880215822400 R15: 0000000000000021
FS:  0000000000000000(0000) GS:ffff88021ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff880215820154 CR3: 000000000180c000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff8103244a>] kmemcheck_error_save_bug+0x7a/0xb0
 [<ffffffff81032850>] kmemcheck_access+0x1d0/0x440
 [<ffffffff8103308d>] kmemcheck_fault+0x9d/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff810179f1>] intel_pmu_save_and_restart+0x11/0x20
 [<ffffffff81017b5d>] intel_pmu_handle_irq+0x15d/0x320
 [<ffffffff814313ed>] perf_event_nmi_handler+0x1d/0x20
 [<ffffffff81430c49>] nmi_handle.isra.0+0x49/0x80
 [<ffffffff81430d60>] do_nmi+0xe0/0x310
 [<ffffffff814302dc>] end_repeat_nmi+0x1a/0x1e
 [<ffffffff81033351>] kmemcheck_shadow_lookup+0x11/0x70
 [<ffffffff810325df>] kmemcheck_write_strict.isra.1+0x1f/0x50
 [<ffffffff810328d4>] kmemcheck_access+0x254/0x440
 [<ffffffff8103305f>] kmemcheck_fault+0x6f/0xd0
 [<ffffffff81433465>] do_page_fault+0x445/0x4d0
 [<ffffffff8142ffb5>] page_fault+0x25/0x30
 [<ffffffff812522b6>] acpi_ns_internalize_name+0x52/0x77
 [<ffffffff81252560>] acpi_ns_get_node+0x3f/0x9f
 [<ffffffff8124ffc2>] acpi_ns_evaluate+0x3e/0x1a8
 [<ffffffff81259cfa>] acpi_ut_evaluate_object+0x7e/0x1a7
 [<ffffffff81259ef6>] acpi_ut_execute_power_methods+0x3f/0x79
 [<ffffffff812533fb>] acpi_get_object_info+0x1b5/0x326
 [<ffffffff8123a8c8>] acpi_add_single_object+0x264/0xb64

[...]

IOMMU 0 0xfed90000: using Queued invalidation
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6 System manufacturer System Product Name/P8P67 EVO
R13: ffff88021278d500 R14: 0000000000000004 R15: ffff8802158ec180
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
 [<ffffffff81353196>] qi_flush_context+0x46/0x50
 [<ffffffff818c3343>] intel_iommu_init+0x978/0xc1a
 [<ffffffff81896ab6>] pci_iommu_init+0x13/0x3e
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffff814389a4>] kernel_thread_helper+0x4/0x10
 [<ffffffffffffffff>] 0xffffffffffffffff
Hardware name: System Product Name
Modules linked in: <omitted>
Pid: 1, comm: swapper/0 Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 [<ffffffff8103a7fa>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8103a845>] warn_slowpath_null+0x15/0x20
 [<ffffffff81208770>] pci_find_upstream_pcie_bridge+0x50/0x70
 [<ffffffff8135754d>] intel_iommu_device_group+0x7d/0x100
 [<ffffffff8134da70>] ? bus_set_iommu+0x50/0x50
 [<ffffffff8134da9b>] add_iommu_group+0x2b/0x60
 [<ffffffff8129f17d>] bus_for_each_dev+0x4d/0x90
 [<ffffffff8134da5b>] bus_set_iommu+0x3b/0x50
 [<ffffffff818c34b4>] intel_iommu_init+0xae9/0xc1a
 [<ffffffff818939ee>] ? clean_rootfs+0x1c1/0x1c1
 [<ffffffff81896aa3>] ? memblock_find_dma_reserve+0x13d/0x13d
 [<ffffffff81896ab6>] pci_iommu_init+0x13/0x3e
 [<ffffffff810002b2>] do_one_initcall+0x122/0x170
 [<ffffffff81891c5c>] kernel_init+0x13a/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
---[ end trace 4eaa2a86a8e2da25 ]---

[...]

Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000005

Pid: 1, comm: init Tainted: G        W    3.4.4+btrfsdebug3+kmc+ #6
Call Trace:
 [<ffffffff81427927>] panic+0xb5/0x1c1
 [<ffffffff8103ec6c>] do_exit+0x7bc/0x8a0
 [<ffffffff8103efea>] do_group_exit+0x3a/0xa0
 [<ffffffff8104d655>] get_signal_to_deliver+0x1a5/0x5c0
 [<ffffffff8104c0b0>] ? send_signal+0x40/0x80
 [<ffffffff81002260>] do_signal+0x60/0x950
 [<ffffffff8104c88c>] ? force_sig_info+0xdc/0x100
 [<ffffffff81002bd5>] do_notify_resume+0x65/0x80
 [<ffffffff814377fa>] int_signal+0x12/0x17
 [<ffffffff81426069>] ? run_init_process+0x1e/0x20
 [<ffffffff814260ad>] ? init_post+0x42/0xbb
 [<ffffffff81891ce0>] ? kernel_init+0x1be/0x1be
 [<ffffffff81891582>] ? do_early_param+0x8c/0x8c
 [<ffffffff814389a4>] ? kernel_thread_helper+0x4/0x10
 [<ffffffff81891b22>] ? start_kernel+0x341/0x341
 [<ffffffff814389a0>] ? gs_change+0x13/0x13
------------------------------------------------------------


Full dmesg outputs attached, as well as dmesg from a healthy boot
without KMEMCHECK.

	Sami

View attachment "healthy.log" of type "text/plain" (75993 bytes)

View attachment "nc.log.acpioff_noioapic" of type "text/plain" (21856 bytes)

View attachment "nc.log.noacpi" of type "text/plain" (40892 bytes)

View attachment "nc.log.noacpi_pci_noacpi" of type "text/plain" (22277 bytes)

View attachment "nc.log.noapic_pci_noacpi_noacpi" of type "text/plain" (23434 bytes)

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)

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