on vanilla .34-rc1 i get this crash: [ 3.375120] initcall init_stack_trace+0x0/0x12 returned 0 after 136718 usecs [ 3.376739] calling init_function_trace+0x0/0x3e @ 1 [ 3.390046] Testing tracer function: [ 3.416665] BUG: unable to handle kernel paging request at ffffffffffffffaf [ 3.416666] IP: [<ffffffff81a5b222>] schedule+0x33b/0x6ed [ 3.416666] PGD 23b9067 PUD 23ba067 PMD 0 [ 3.416666] Oops: 0002 [#1] PREEMPT SMP [ 3.416666] last sysfs file: [ 3.416666] CPU 1 [ 3.416666] Pid: 40, comm: rcu_torture_rea Not tainted 2.6.34-rc1-dirty #112 / [ 3.416666] RIP: 0010:[<ffffffff81a5b222>] [<ffffffff81a5b222>] schedule+0x33b/0x6ed [ 3.416666] RSP: 0018:ffff88003c871d30 EFLAGS: 00010082 [ 3.416666] RAX: ffff88003c869640 RBX: ffff8800093d5200 RCX: 0000000001e9ab12 [ 3.416666] RDX: 0000000000334987 RSI: ffff88003c869640 RDI: ffff8800093d5200 [ 3.416666] RBP: ffffffffffffffff R08: ffff88003c869678 R09: 0000000000000001 [ 3.416666] R10: 0000000291cd04d1 R11: ffff8800093d5200 R12: ffff88003c870000 [ 3.416666] R13: ffff88003c869bb8 R14: ffff88003c871df0 R15: 0000000000000001 [ 3.416666] FS: 0000000000000000(0000) GS:ffff880009200000(0000) knlGS:0000000000000000 [ 3.416666] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 3.416666] CR2: ffffffffffffffaf CR3: 00000000023b7000 CR4: 00000000000006a0 [ 3.416666] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.523560] .. no entries found ..FAILED! [ 3.523576] initcall init_function_trace+0x0/0x3e returned -1 after 139973 usecs [ 3.523582] initcall init_function_trace+0x0/0x3e returned with error code -1 [ 3.523588] calling init_irqsoff_tracer+0x0/0x14 @ 1 [ 3.416666] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 3.416666] Process rcu_torture_rea (pid: 40, threadinfo ffff88003c870000, task ffff88003c8696) [ 3.416666] Stack: [ 3.416666] ffff88003c871d50 ffff88003c871fd8 ffff88003c869640 ffff88003c870000 [ 3.416666] <0> 0000000000000033 ffffffff8103995b 0000000000000001 000000000000002b [ 3.416666] <0> ffff88003c871fd8 ffff88003c869640 0000000000000001 ffffffff8108d451 [ 3.416666] Call Trace: [ 3.416666] [<ffffffff8103995b>] ? put_prev_task_fair+0x10/0xa4 [ 3.416666] [<ffffffff8108d451>] ? rcu_torture_reader+0x1dc/0x28c [ 3.416666] [<ffffffff8108d456>] ? rcu_torture_reader+0x1e1/0x28c [ 3.416666] [<ffffffff8108d17b>] ? rcu_torture_timer+0x0/0xfa [ 3.416666] [<ffffffff8108d275>] ? rcu_torture_reader+0x0/0x28c [ 3.416666] [<ffffffff8105a664>] ? kthread+0x9a/0xa2 [ 3.416666] [<ffffffff8106c483>] ? trace_hardirqs_on_caller+0x114/0x13f [ 3.416666] [<ffffffff81003a54>] ? kernel_thread_helper+0x4/0x10 [ 3.416666] [<ffffffff810366e7>] ? finish_task_switch+0x70/0xa5 [ 3.416666] [<ffffffff81a5e1c0>] ? restore_args+0x0/0x30 [ 3.416666] [<ffffffff8105a5ca>] ? kthread+0x0/0xa2 [ 3.416666] [<ffffffff81003a50>] ? kernel_thread_helper+0x0/0x10 [ 3.416666] Code: 30 48 89 fe 48 89 df ff 50 30 48 8b 83 a8 00 00 00 48 39 43 40 74 09 49 c7 c [ 3.416666] RIP [<ffffffff81a5b222>] schedule+0x33b/0x6ed [ 3.416666] RSP <ffff88003c871d30> [ 3.416666] CR2: ffffffffffffffaf (same config) I'll try to bisect it. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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