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Message-ID: <20090810184527.GA9601@elte.hu> Date: Mon, 10 Aug 2009 20:45:27 +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() * Catalin Marinas <catalin.marinas@....com> wrote: > Hi Ingo, > > On Sun, 2009-08-02 at 13:14 +0200, Ingo Molnar wrote: > > hm, some recent kmemleak patch is causing frequent hard and > > soft lockups in -tip testing (-rc5 based). > > Thanks for reporting this. It shouldn't be caused by the patch > mentioned in the subject as this only deals with reading the seq > file which doesn't seem to be the case here. Since i turned off kmemleak in -tip completely via the patch below i havent had a single such lockup. Have you tried the config i sent - does it work fine for you? For me it locks up on various boxes within a couple of minutes - without doing anything particular beyond building a kernel or so. Ingo -------------> >From da0ce636e98cc3aababc0cb93c2dc5b6e9421a22 Mon Sep 17 00:00:00 2001 From: Ingo Molnar <mingo@...e.hu> Date: Sun, 2 Aug 2009 12:59:58 +0200 Subject: [PATCH] kmemleak: Disable it for now kmemleak causes various lockups on 64-bit x86 kernels: 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 Signed-off-by: Ingo Molnar <mingo@...e.hu> --- lib/Kconfig.debug | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index b9c3be4..ea7c4ac 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -342,6 +342,7 @@ config DEBUG_KMEMLEAK select DEBUG_FS if SYSFS select STACKTRACE if STACKTRACE_SUPPORT select KALLSYMS + depends on 0 help Say Y here if you want to enable the memory leak detector. The memory allocation/freeing is traced in a way -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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