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Message-ID: <20090802111453.GA24927@elte.hu>
Date: Sun, 2 Aug 2009 13:14:53 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Catalin Marinas <catalin.marinas@....com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org
Subject: Re: kmemleak: Protect the seq start/next/stop sequence by
rcu_read_lock()
hm, some recent kmemleak patch is causing frequent hard and
soft lockups in -tip testing (-rc5 based).
The pattern is similar: the kmemleak thread keeps spinning
in scan_objects() and never seems to finish:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff82d2b560>] ? page_fault+0x0/0x30
[ 177.093253] <<EOE>> [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
Yesterday i let one of the testboxes run overnight in this
state and it never recovered from the lockup.
Unfortunately the failure is not 100% reproducible with
small variations in the config or in the kernel source -
i.e. not really bisectable. It also does not occur
immediately all the time. Turning off CONFIG_KMEMLEAK solves
the lockup.
64-bit allyesconfig seems to reproduce it with a higher
likelyhood: within 5-10 minutes after bootup an SMP testbox
locks up most of the time. UP boxes seem to survive it a lot
better.
I've captured register dumps and backtraces from one of the
testboxes, see it attached below. Config is attached as
well.
Ingo
-------------------->
Kernel 2.6.31-rc5-tip-00864-ged6f5fe-dirty on an x86_64
mercury login:
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff82d2b560>] [<ffffffff82d2b560>] page_fault+0x0/0x30
[ 177.093253] RSP: 0018:ffff880036043db0 EFLAGS: 00000046
[ 177.093253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 177.093253] RDX: ffff88003f84a000 RSI: ffff880024000000 RDI: ffff880020000000
[ 177.093253] RBP: ffff880036043e20 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: 0000000000000000 R14: ffff88003f84a000 R15: ffff880023fffff9
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff82d2b560>] ? page_fault+0x0/0x30
[ 177.093253] <<EOE>> [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba4f>] [<ffffffff8112ba4f>] time_hardirqs_off+0x3e/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000046
[ 181.588015] RAX: 0000000000000000 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba4f>] ? time_hardirqs_off+0x3e/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff8118bd42>] [<ffffffff8118bd42>] scan_block+0x40/0x123
[ 177.093253] RSP: 0018:ffff880036043de0 EFLAGS: 00010046
[ 177.093253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 177.093253] RDX: ffff88003f84a000 RSI: ffff880024000000 RDI: ffff880020000000
[ 177.093253] RBP: ffff880036043e20 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: 0000000000000000 R14: ffff88003f84a000 R15: ffff880023fffff9
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] <<EOE>> [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba4f>] [<ffffffff8112ba4f>] time_hardirqs_off+0x3e/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000046
[ 181.588015] RAX: 0000000000000000 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba4f>] ? time_hardirqs_off+0x3e/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff8118bd42>] [<ffffffff8118bd42>] scan_block+0x40/0x123
[ 177.093253] RSP: 0018:ffff880036043de0 EFLAGS: 00010046
[ 177.093253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 177.093253] RDX: ffff88003f84a000 RSI: ffff880024000000 RDI: ffff880020000000
[ 177.093253] RBP: ffff880036043e20 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: 0000000000000000 R14: ffff88003f84a000 R15: ffff880023fffff9
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] <<EOE>> [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba46>] [<ffffffff8112ba46>] time_hardirqs_off+0x35/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000096
[ 181.588015] RAX: 3d2eef9f2ecb6a80 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba46>] ? time_hardirqs_off+0x35/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff8118bd42>] [<ffffffff8118bd42>] scan_block+0x40/0x123
[ 177.093253] RSP: 0018:ffff880036043de0 EFLAGS: 00010046
[ 177.093253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 177.093253] RDX: ffff88003f84a000 RSI: ffff880024000000 RDI: ffff880020000000
[ 177.093253] RBP: ffff880036043e20 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: 0000000000000000 R14: ffff88003f84a000 R15: ffff880023fffff9
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] <<EOE>> [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba4f>] [<ffffffff8112ba4f>] time_hardirqs_off+0x3e/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000046
[ 181.588015] RAX: 0000000000000000 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba4f>] ? time_hardirqs_off+0x3e/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff8118bd42>] [<ffffffff8118bd42>] scan_block+0x40/0x123
[ 177.093253] RSP: 0018:ffff880036043de0 EFLAGS: 00010046
[ 177.093253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 177.093253] RDX: ffff88003f84a000 RSI: ffff880024000000 RDI: ffff880020000000
[ 177.093253] RBP: ffff880036043e20 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: 0000000000000000 R14: ffff88003f84a000 R15: ffff880023fffff9
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] <<EOE>> [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba46>] [<ffffffff8112ba46>] time_hardirqs_off+0x35/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000096
[ 181.588015] RAX: 3d2eef9f2ecb6a80 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba46>] ? time_hardirqs_off+0x35/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff82d2b560>] [<ffffffff82d2b560>] page_fault+0x0/0x30
[ 177.093253] RSP: 0018:ffff880036043db0 EFLAGS: 00000046
[ 177.093253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 177.093253] RDX: ffff88003f84a000 RSI: ffff880024000000 RDI: ffff880020000000
[ 177.093253] RBP: ffff880036043e20 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: 0000000000000000 R14: ffff88003f84a000 R15: ffff880023fffff9
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff82d2b560>] ? page_fault+0x0/0x30
[ 177.093253] <<EOE>> [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff81062f02>] [<ffffffff81062f02>] _flat_send_IPI_mask+0x99/0xd2
[ 181.588015] RSP: 0018:ffff880005392ca8 EFLAGS: 00000046
[ 181.588015] RAX: 0000000000000c00 RBX: 0000000000000c00 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062ea8 RDI: 0000000000000046
[ 181.588015] RBP: ffff880005392cd8 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: 0000000000000002
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062ea8>] ? _flat_send_IPI_mask+0x3f/0xd2
[ 181.588015] [<ffffffff81062f02>] ? _flat_send_IPI_mask+0x99/0xd2
[ 181.588015] <<EOE>> <IRQ> [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff82d2dec8>] [<ffffffff82d2dec8>] do_page_fault+0x68/0x359
[ 177.093253] RSP: 0018:ffff880036043cd8 EFLAGS: 00000046
[ 177.093253] RAX: 0000000000000060 RBX: 0000000000000001 RCX: 000000008103cf40
[ 177.093253] RDX: ffff88003f84a000 RSI: 0000000000000000 RDI: ffff880036043d38
[ 177.093253] RBP: ffff880036043d28 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: ffff880036043d38 R14: 0000000000000000 R15: ffff880035c33000
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff82d2dec8>] ? do_page_fault+0x68/0x359
[ 177.093253] <<EOE>> [<ffffffff82d2a187>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[ 177.093253] [<ffffffff82d2b585>] page_fault+0x25/0x30
[ 177.093253] [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba4f>] [<ffffffff8112ba4f>] time_hardirqs_off+0x3e/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000046
[ 181.588015] RAX: 0000000000000000 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba4f>] ? time_hardirqs_off+0x3e/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
[ 181.588015] SysRq : Show backtrace of all active CPUs
[ 181.588015] sending NMI to all CPUs:
[ 177.093253] NMI backtrace for cpu 1
[ 177.093253] CPU 1:
[ 177.093253] Modules linked in:
[ 177.093253] Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 177.093253] RIP: 0010:[<ffffffff82d2dec8>] [<ffffffff82d2dec8>] do_page_fault+0x68/0x359
[ 177.093253] RSP: 0018:ffff880036043cd8 EFLAGS: 00000046
[ 177.093253] RAX: 0000000000000060 RBX: 0000000000000001 RCX: 000000008103cf40
[ 177.093253] RDX: ffff88003f84a000 RSI: 0000000000000000 RDI: ffff880036043d38
[ 177.093253] RBP: ffff880036043d28 R08: 0000000000000002 R09: 0000000000000000
[ 177.093253] R10: 00000000000001cd R11: 000000002ef9ac36 R12: ffff880020000000
[ 177.093253] R13: ffff880036043d38 R14: 0000000000000000 R15: ffff880035c33000
[ 177.093253] FS: 00007f7900741780(0000) GS:ffff880005572000(0000) knlGS:00000000f7edf6c0
[ 177.093253] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 177.093253] CR2: ffff880020000000 CR3: 000000002c06f000 CR4: 00000000000006e0
[ 177.093253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 177.093253] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 177.093253] Call Trace:
[ 177.093253] <#DB[1]> <<EOE>> Pid: 6446, comm: kmemleak Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 177.093253] Call Trace:
[ 177.093253] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 177.093253] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 177.093253] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 177.093253] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 177.093253] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 177.093253] [<ffffffff82d2dec8>] ? do_page_fault+0x68/0x359
[ 177.093253] <<EOE>> [<ffffffff82d2a187>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[ 177.093253] [<ffffffff82d2b585>] page_fault+0x25/0x30
[ 177.093253] [<ffffffff8118bd42>] ? scan_block+0x40/0x123
[ 177.093253] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 177.093253] [<ffffffff8118c17e>] kmemleak_scan+0x359/0x61e
[ 177.093253] [<ffffffff8118be25>] ? kmemleak_scan+0x0/0x61e
[ 177.093253] [<ffffffff8118cbed>] ? kmemleak_scan_thread+0x0/0xd0
[ 177.093253] [<ffffffff8118cc62>] kmemleak_scan_thread+0x75/0xd0
[ 177.093253] [<ffffffff810c157c>] kthread+0xa8/0xb0
[ 177.093253] [<ffffffff8103d5ca>] child_rip+0xa/0x20
[ 177.093253] [<ffffffff8103cf10>] ? restore_args+0x0/0x30
[ 177.093253] [<ffffffff810c14b3>] ? kthreadd+0x12e/0x14f
[ 177.093253] [<ffffffff810c14d4>] ? kthread+0x0/0xb0
[ 177.093253] [<ffffffff8103d5c0>] ? child_rip+0x0/0x20
[ 181.588015] NMI backtrace for cpu 0
[ 181.588015] CPU 0:
[ 181.588015] Modules linked in:
[ 181.588015] Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81 System Product Name
[ 181.588015] RIP: 0010:[<ffffffff8112ba46>] [<ffffffff8112ba46>] time_hardirqs_off+0x35/0x47
[ 181.588015] RSP: 0018:ffff880005392c38 EFLAGS: 00000096
[ 181.588015] RAX: 3d2eef9f2ecb6a80 RBX: ffffffff83c1a020 RCX: 0000000000000000
[ 181.588015] RDX: 0000000000000000 RSI: ffffffff81062f09 RDI: ffffffff810d666d
[ 181.588015] RBP: ffff880005392c48 R08: 3d2eef9f2ecb6a80 R09: 0000000000000000
[ 181.588015] R10: 0000000000000000 R11: 0000000000018600 R12: ffffffff81062f09
[ 181.588015] R13: 0000000000000046 R14: 0000000000000003 R15: 0000000000000003
[ 181.588015] FS: 00007fcfa49ab780(0000) GS:ffff88000538f000(0000) knlGS:00000000f7edf6c0
[ 181.588015] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 181.588015] CR2: 00007fcfa3d7212f CR3: 000000002cd34000 CR4: 00000000000006f0
[ 181.588015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 181.588015] DR3: ffffffff84fa69ac DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 181.588015] Call Trace:
[ 181.588015] <#DB[1]> <<EOE>> Pid: 0, comm: swapper Tainted: G W 2.6.31-rc5-tip-00864-ged6f5fe-dirty #81
[ 181.588015] Call Trace:
[ 181.588015] <NMI> [<ffffffff82d2cc90>] nmi_watchdog_tick+0xe8/0x200
[ 181.588015] [<ffffffff810c76c8>] ? notify_die+0x3d/0x53
[ 181.588015] [<ffffffff82d2bf4a>] default_do_nmi+0x84/0x22b
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff82d2c164>] do_nmi+0x73/0xcc
[ 181.588015] [<ffffffff82d2b8a0>] nmi+0x20/0x39
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81062f09>] ? _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff810d666d>] ? trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff8112ba46>] ? time_hardirqs_off+0x35/0x47
[ 181.588015] <<EOE>> <IRQ> [<ffffffff810d659a>] trace_hardirqs_off_caller+0x32/0xe5
[ 181.588015] [<ffffffff810d666d>] trace_hardirqs_off+0x20/0x36
[ 181.588015] [<ffffffff81062f09>] _flat_send_IPI_mask+0xa0/0xd2
[ 181.588015] [<ffffffff81063002>] flat_send_IPI_all+0x35/0x83
[ 181.588015] [<ffffffff8105e888>] __trigger_all_cpu_backtrace+0x60/0xa5
[ 181.588015] [<ffffffff8181a2ff>] sysrq_handle_showallcpus+0x21/0x37
[ 181.588015] [<ffffffff81819f5f>] __handle_sysrq+0xcf/0x185
[ 181.588015] [<ffffffff8181a0bf>] handle_sysrq+0x38/0x4e
[ 181.588015] [<ffffffff81909fcb>] receive_chars+0x14c/0x29f
[ 181.588015] [<ffffffff82d2ac48>] ? _spin_lock_irqsave+0x8a/0xac
[ 181.588015] [<ffffffff8190a166>] serial8250_handle_port+0x48/0x84
[ 181.588015] [<ffffffff8190a216>] serial8250_interrupt+0x74/0x11d
[ 181.588015] [<ffffffff8110ca28>] ? handle_edge_irq+0xd5/0x13c
[ 181.588015] [<ffffffff8110a68f>] handle_IRQ_event+0x6b/0x181
[ 181.588015] [<ffffffff8110ca33>] handle_edge_irq+0xe0/0x13c
[ 181.588015] [<ffffffff8103f53e>] handle_irq+0x9d/0xbf
[ 181.588015] [<ffffffff8103b28c>] ? exit_idle+0x51/0x67
[ 181.588015] [<ffffffff82d304ba>] do_IRQ+0x72/0xe8
[ 181.588015] [<ffffffff8103ce53>] ret_from_intr+0x0/0x16
[ 181.588015] <EOI> [<ffffffff8106ae95>] ? native_safe_halt+0xb/0xd
[ 181.588015] [<ffffffff8104516a>] ? default_idle+0x6c/0xab
[ 181.588015] [<ffffffff8112bdbd>] ? stop_critical_timings+0x3d/0x54
[ 181.588015] [<ffffffff8103b3e1>] ? cpu_idle+0xf1/0x13e
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff82c1db4a>] ? rest_init+0x7e/0x94
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84122190>] ? start_kernel+0x3af/0x3cc
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff84121140>] ? early_idt_handler+0x0/0x71
[ 181.588015] [<ffffffff841212ce>] ? x86_64_start_reservations+0xb9/0xd4
[ 181.588015] [<ffffffff84121000>] ? __init_begin+0x0/0x140
[ 181.588015] [<ffffffff84121441>] ? x86_64_start_kernel+0x158/0x17b
View attachment "config" of type "text/plain" (95784 bytes)
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