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Date:	Sat, 11 Jun 2011 17:23:07 +0200
From:	wzab <wzab@....pw.edu.pl>
To:	linux-kernel@...r.kernel.org
CC:	wzab@....pw.edu.pl
Subject: kmemcheck error and panic when booting 2.6.39.1 , however acpi=off
 allows to boot

Hi,

Today I've tried to investigate more thoroughly why one of my machine 
doesn't boot with 2.6.39.1
I've performed four reboots with different parameters, recording serial 
console output to files:

crash6.txt - booting with HT in BIOS on, parameters: kmemleak=on
crash7.txt - booting with HT in BIOS on, parameters: slub_debug kmemleak=on
crash8.txt - booting with HT in BIOS off, parameters: slub_debug kmemleak=on
crash9.txt - booting with HT in BIOS on, parameters: slub_debug 
kmemleak=on acpi=off

In all cases there was a problem detected in kmemcheck:

crash6.txt:
[   69.689737] ------------[ cut here ]------------
[   69.690605] WARNING: at arch/x86/mm/kmemcheck/kmemcheck.c:634 
kmemcheck_fault+0xa5/0xc0()
[   69.690605] Hardware name:
[   69.690605] Modules linked in:
[   69.690605] Pid: 1, comm: swapper Not tainted 2.6.39.1 #3
[   69.690605] Call Trace:
[   69.690605]  [<c013de0d>] warn_slowpath_common+0x6d/0xa0
[   69.690605]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   69.690605]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   69.690605]  [<c013de5d>] warn_slowpath_null+0x1d/0x20
[   69.690605]  [<c0128ce5>] kmemcheck_fault+0xa5/0xc0
[   69.690605]  [<c0124480>] do_page_fault+0x270/0x440
[   69.690605]  [<c0128cad>] ? kmemcheck_fault+0x6d/0xc0
[   69.690605]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.690605]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   69.690605]  [<c04663f3>] error_code+0x5f/0x64
[   69.690605]  [<c012007b>] ? io_apic_set_pci_routing+0x4b/0x60
[   69.690605]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   69.690605]  [<c0111dbf>] ? p4_pmu_handle_irq+0x7f/0x1b0
[   69.690605]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.690605]  [<c0128469>] ? kmemcheck_save_addr+0x19/0x40
[   69.690605]  [<c012880b>] ? kmemcheck_show_addr+0xb/0x20
[   69.690605]  [<c012896e>] ? kmemcheck_show_all+0x2e/0x40
[   69.690605]  [<c010f098>] perf_event_nmi_handler+0x28/0xa0
[   69.690605]  [<c015f1c5>] notifier_call_chain+0x75/0xe0
[   69.690605]  [<c015f700>] __atomic_notifier_call_chain+0x60/0x90
[   69.690605]  [<c015f6a0>] ? register_reboot_notifier+0x20/0x20
[   69.690605]  [<c015f74a>] atomic_notifier_call_chain+0x1a/0x20
[   69.690605]  [<c015f86d>] notify_die+0x2d/0x30
[   69.690605]  [<c0102d72>] default_do_nmi+0x32/0x280
[   69.690605]  [<c010369f>] do_nmi+0x7f/0x90
[   69.690605]  [<c04664a5>] nmi_stack_correct+0x28/0x2d
[   69.690605]  [<c010378c>] ? do_debug+0xc/0x190
[   69.690605]  [<c0466446>] debug_stack_correct+0x2e/0x34
[   69.690605]  [<c028f6ef>] ? prio_tree_insert+0xdf/0x190
[   69.690605]  [<c01c68e0>] create_object+0x140/0x230
[   69.690605]  [<c04543a7>] kmemleak_alloc+0x27/0x50
[   69.690605]  [<c01c3b79>] kmem_cache_alloc+0xc9/0x110
[   69.690605]  [<c02ac306>] dma_debug_init+0x96/0x140
[   69.690605]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690605]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690605]  [<c0624d50>] pci_iommu_init+0x13/0x48
[   69.690605]  [<c01011f0>] do_one_initcall+0x30/0x170
[   69.690605]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690605]  [<c0624d3d>] ? iommu_setup+0x1fd/0x1fd
[   69.690605]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690605]  [<c061f7f8>] kernel_init+0x9b/0x12f
[   69.690605]  [<c0466bba>] kernel_thread_helper+0x6/0xd
[   69.690605] ---[ end trace 93d72a36b9146f22 ]---

crash7.txt:
[   69.687496] ------------[ cut here ]------------
[   69.690015] WARNING: at arch/x86/mm/kmemcheck/kmemcheck.c:634 
kmemcheck_fault+0xa5/0xc0()
[   69.690015] Hardware name:
[   69.690015] Modules linked in:
[   69.690015] Pid: 1, comm: swapper Not tainted 2.6.39.1 #3
[   69.690015] Call Trace:
[   69.690015]  [<c013de0d>] warn_slowpath_common+0x6d/0xa0
[   69.690015]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   69.690015]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   69.690015]  [<c013de5d>] warn_slowpath_null+0x1d/0x20
[   69.690015]  [<c0128ce5>] kmemcheck_fault+0xa5/0xc0
[   69.690015]  [<c0124480>] do_page_fault+0x270/0x440
[   69.690015]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.690015]  [<c0128469>] ? kmemcheck_save_addr+0x19/0x40
[   69.690015]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.690015]  [<c0128469>] ? kmemcheck_save_addr+0x19/0x40
[   69.690015]  [<c0128713>] ? kmemcheck_read_strict+0x33/0x80
[   69.690015]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   69.690015]  [<c04663f3>] error_code+0x5f/0x64
[   69.690015]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   69.690015]  [<c0111dbf>] ? p4_pmu_handle_irq+0x7f/0x1b0
[   69.690015]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.690015]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.690015]  [<c010f098>] perf_event_nmi_handler+0x28/0xa0
[   69.690015]  [<c015f1c5>] notifier_call_chain+0x75/0xe0
[   69.690015]  [<c015f700>] __atomic_notifier_call_chain+0x60/0x90
[   69.690015]  [<c015f6a0>] ? register_reboot_notifier+0x20/0x20
[   69.690015]  [<c015f74a>] atomic_notifier_call_chain+0x1a/0x20
[   69.690015]  [<c015f86d>] notify_die+0x2d/0x30
[   69.690015]  [<c0102d72>] default_do_nmi+0x32/0x280
[   69.690015]  [<c010369f>] do_nmi+0x7f/0x90
[   69.690015]  [<c04664a5>] nmi_stack_correct+0x28/0x2d
[   69.690015]  [<c012007b>] ? io_apic_set_pci_routing+0x4b/0x60
[   69.690015]  [<c016ce46>] ? trace_hardirqs_off_caller+0xa6/0xf0
[   69.690015]  [<c0295b64>] trace_hardirqs_off_thunk+0xc/0x18
[   69.690015]  [<c0465de6>] ? ret_from_exception+0x6/0x6
[   69.690015]  [<c01c007b>] ? unuse_pte+0xfb/0x120
[   69.690015]  [<c01c67f2>] ? create_object+0x52/0x230
[   69.690015]  [<c04543a7>] kmemleak_alloc+0x27/0x50
[   69.690015]  [<c01c3b79>] kmem_cache_alloc+0xc9/0x110
[   69.690015]  [<c02ac306>] dma_debug_init+0x96/0x140
[   69.690015]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690015]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690015]  [<c0624d50>] pci_iommu_init+0x13/0x48
[   69.690015]  [<c01011f0>] do_one_initcall+0x30/0x170
[   69.690015]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690015]  [<c0624d3d>] ? iommu_setup+0x1fd/0x1fd
[   69.690015]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.690015]  [<c061f7f8>] kernel_init+0x9b/0x12f
[   69.690015]  [<c0466bba>] kernel_thread_helper+0x6/0xd
[   69.690015] ---[ end trace 93d72a36b9146f22 ]---

crash8.txt:
[   69.663411] ------------[ cut here ]------------
[   69.663411] WARNING: at arch/x86/mm/kmemcheck/kmemcheck.c:634 
kmemcheck_fault+0xa5/0xc0()
[   69.663411] Hardware name:
[   69.663411] Modules linked in:
[   69.663411] Pid: 1, comm: swapper Not tainted 2.6.39.1 #3
[   69.663411] Call Trace:
[   69.663411]  [<c013de0d>] warn_slowpath_common+0x6d/0xa0
[   69.663411]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   69.663411]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   69.663411]  [<c013de5d>] warn_slowpath_null+0x1d/0x20
[   69.663411]  [<c0128ce5>] kmemcheck_fault+0xa5/0xc0
[   69.663411]  [<c0124480>] do_page_fault+0x270/0x440
[   69.663411]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   69.663411]  [<c01093f6>] ? native_sched_clock+0x26/0x90
[   69.663411]  [<c015ffc3>] ? sched_clock_local+0xd3/0x1c0
[   69.663411]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   69.663411]  [<c04663f3>] error_code+0x5f/0x64
[   69.663411]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   69.663411]  [<c0111dbf>] ? p4_pmu_handle_irq+0x7f/0x1b0
[   69.663411]  [<c012896e>] ? kmemcheck_show_all+0x2e/0x40
[   69.663411]  [<c0128469>] ? kmemcheck_save_addr+0x19/0x40
[   69.663411]  [<c0128713>] ? kmemcheck_read_strict+0x33/0x80
[   69.663411]  [<c010f098>] perf_event_nmi_handler+0x28/0xa0
[   69.663411]  [<c015f1c5>] notifier_call_chain+0x75/0xe0
[   69.663411]  [<c012896e>] ? kmemcheck_show_all+0x2e/0x40
[   69.663411]  [<c015f700>] __atomic_notifier_call_chain+0x60/0x90
[   69.663411]  [<c015f6a0>] ? register_reboot_notifier+0x20/0x20
[   69.663411]  [<c015f74a>] atomic_notifier_call_chain+0x1a/0x20
[   69.663411]  [<c015f86d>] notify_die+0x2d/0x30
[   69.663411]  [<c0102d72>] default_do_nmi+0x32/0x280
[   69.663411]  [<c010369f>] do_nmi+0x7f/0x90
[   69.663411]  [<c04664a5>] nmi_stack_correct+0x28/0x2d
[   69.663411]  [<c046638c>] ? spurious_interrupt_bug+0xc/0xc
[   69.663411]  [<c028f42c>] ? prio_tree_replace+0x4c/0x60
[   69.663411]  [<c028f739>] prio_tree_insert+0x129/0x190
[   69.663411]  [<c01c68e0>] create_object+0x140/0x230
[   69.663411]  [<c04543a7>] kmemleak_alloc+0x27/0x50
[   69.663411]  [<c01c3b79>] kmem_cache_alloc+0xc9/0x110
[   69.663411]  [<c02ac306>] dma_debug_init+0x96/0x140
[   69.663411]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.663411]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.663411]  [<c0624d50>] pci_iommu_init+0x13/0x48
[   69.663411]  [<c01011f0>] do_one_initcall+0x30/0x170
[   69.663411]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.663411]  [<c0624d3d>] ? iommu_setup+0x1fd/0x1fd
[   69.663411]  [<c061f75d>] ? start_kernel+0x322/0x322
[   69.663411]  [<c061f7f8>] kernel_init+0x9b/0x12f
[   69.663411]  [<c0466bba>] kernel_thread_helper+0x6/0xd
[   69.663411] ---[ end trace 93d72a36b9146f22 ]---

crash9.txt:
[   61.373342] ------------[ cut here ]------------
[   61.373348] WARNING: at arch/x86/mm/kmemcheck/kmemcheck.c:634 
kmemcheck_fault+0xa5/0xc0()
[   61.373348] Hardware name:
[   61.373348] Modules linked in:
[   61.373348] Pid: 1, comm: swapper Not tainted 2.6.39.1 #3
[   61.373348] Call Trace:
[   61.373348]  [<c013de0d>] warn_slowpath_common+0x6d/0xa0
[   61.373348]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   61.373348]  [<c0128ce5>] ? kmemcheck_fault+0xa5/0xc0
[   61.373348]  [<c013de5d>] warn_slowpath_null+0x1d/0x20
[   61.373348]  [<c0128ce5>] kmemcheck_fault+0xa5/0xc0
[   61.373348]  [<c0124480>] do_page_fault+0x270/0x440
[   61.373348]  [<c0128713>] ? kmemcheck_read_strict+0x33/0x80
[   61.373348]  [<c0128469>] ? kmemcheck_save_addr+0x19/0x40
[   61.373348]  [<c0128713>] ? kmemcheck_read_strict+0x33/0x80
[   61.373348]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   61.373348]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   61.373348]  [<c04663f3>] error_code+0x5f/0x64
[   61.373348]  [<c0124210>] ? vmalloc_sync_all+0x100/0x100
[   61.373348]  [<c0111dbf>] ? p4_pmu_handle_irq+0x7f/0x1b0
[   61.373348]  [<c0128713>] ? kmemcheck_read_strict+0x33/0x80
[   61.373348]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   61.373348]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   61.373348]  [<c010f098>] perf_event_nmi_handler+0x28/0xa0
[   61.373348]  [<c015f1c5>] notifier_call_chain+0x75/0xe0
[   61.373348]  [<c015f700>] __atomic_notifier_call_chain+0x60/0x90
[   61.373348]  [<c015f6a0>] ? register_reboot_notifier+0x20/0x20
[   61.373348]  [<c015f74a>] atomic_notifier_call_chain+0x1a/0x20
[   61.373348]  [<c015f86d>] notify_die+0x2d/0x30
[   61.373348]  [<c0102d72>] default_do_nmi+0x32/0x280
[   61.373348]  [<c0128cad>] ? kmemcheck_fault+0x6d/0xc0
[   61.373348]  [<c010369f>] do_nmi+0x7f/0x90
[   61.373348]  [<c04664a5>] nmi_stack_correct+0x28/0x2d
[   61.373348]  [<c012007b>] ? io_apic_set_pci_routing+0x4b/0x60
[   61.373348]  [<c01093d0>] ? time_cpufreq_notifier+0x140/0x140
[   61.373348]  [<c015ffc3>] ? sched_clock_local+0xd3/0x1c0
[   61.373348]  [<c012880b>] ? kmemcheck_show_addr+0xb/0x20
[   61.373348]  [<c012896e>] ? kmemcheck_show_all+0x2e/0x40
[   61.373348]  [<c0128cad>] ? kmemcheck_fault+0x6d/0xc0
[   61.373348]  [<c0160259>] sched_clock_cpu+0xf9/0x190
[   61.373348]  [<c0128e2e>] ? kmemcheck_pte_lookup+0xe/0x40
[   61.373348]  [<c0160309>] local_clock+0x19/0x60
[   61.373348]  [<c016d33d>] lock_release_holdtime+0x2d/0x160
[   61.373348]  [<c0128d1a>] ? kmemcheck_trap+0x1a/0x30
[   61.373348]  [<c01728dc>] lock_release_nested+0x8c/0x110
[   61.373348]  [<c02a60da>] ? debug_object_deactivate+0x8a/0xf0
[   61.373348]  [<c01729ab>] __lock_release+0x4b/0xe0
[   61.373348]  [<c0172a89>] lock_release+0x49/0x70
[   61.373348]  [<c02a60da>] ? debug_object_deactivate+0x8a/0xf0
[   61.373348]  [<c0465cb9>] _raw_spin_unlock_irqrestore+0x19/0x70
[   61.373348]  [<c02a60da>] debug_object_deactivate+0x8a/0xf0
[   61.373348]  [<c015d4ed>] __run_hrtimer.clone.22+0x2d/0x120
[   61.373348]  [<c0465116>] ? _raw_spin_lock+0x66/0x70
[   61.373348]  [<c015dffd>] hrtimer_interrupt+0x17d/0x260
[   61.373348]  [<c012898b>] ? kmemcheck_hide_addr+0xb/0x20
[   61.373348]  [<c011c370>] smp_apic_timer_interrupt+0x50/0x90
[   61.373348]  [<c0295b64>] ? trace_hardirqs_off_thunk+0xc/0x18
[   61.373348]  [<c04661b7>] apic_timer_interrupt+0x2f/0x34
[   61.373348]  [<c029007b>] ? radix_tree_callback+0x4b/0x60
[   61.373348]  [<c0225eda>] ? sysfs_find_dirent+0x2a/0x50
[   61.373348]  [<c0226077>] __sysfs_add_one+0x27/0x90
[   61.373348]  [<c02260f8>] sysfs_add_one+0x18/0xb0
[   61.373348]  [<c022695a>] sysfs_do_create_link+0xea/0x1f0
[   61.373348]  [<c0226a72>] sysfs_create_link+0x12/0x20
[   61.373348]  [<c0341a44>] device_add+0x154/0x350
[   61.373348]  [<c0341c52>] device_register+0x12/0x20
[   61.373348]  [<c0341d01>] device_create_vargs+0xa1/0xc0
[   61.373348]  [<c0341d48>] device_create+0x28/0x30
[   61.373348]  [<c030386f>] tty_register_device+0x7f/0x100
[   61.373348]  [<c0290035>] ? radix_tree_callback+0x5/0x60
[   61.373348]  [<c0465ec8>] ? restore_all+0xf/0xf
[   61.373348]  [<c028da00>] ? kobject_cleanup+0x100/0x110
[   61.373348]  [<c0303d73>] tty_register_driver+0xf3/0x240
[   61.373348]  [<c0640a11>] legacy_pty_init+0x159/0x188
[   61.373348]  [<c061f75d>] ? start_kernel+0x322/0x322
[   61.373348]  [<c0640c6c>] pty_init+0x8/0x11
[   61.373348]  [<c01011f0>] do_one_initcall+0x30/0x170
[   61.373348]  [<c061f75d>] ? start_kernel+0x322/0x322
[   61.373348]  [<c0640c64>] ? unix98_pty_init+0x224/0x224
[   61.373348]  [<c061f75d>] ? start_kernel+0x322/0x322
[   61.373348]  [<c061f7f8>] kernel_init+0x9b/0x12f
[   61.373348]  [<c0466bba>] kernel_thread_helper+0x6/0xd
[   61.373348] ---[ end trace 93d72a36b9146f22 ]---

All above errors look very similar, however further operation of the kernel
depends on boot parameters.
Only with "acpi=off" the system started completely, and I was able to log in
into gdm, and later switch it off in normal way (crash8.txt).
With other parameters kernel panicked during the boot.

I attach the crashes.tar.z2 file containing logs (crash?.txt) and 
configuration
of my kernel (config). Hardware details of my machine were already provided
in previous messages in this thread.
-- 
Regards,
Wojtek

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