On Sat, 1 December 2007 21:54:56 +0100, Ingo Molnar wrote: > * J??rn Engel <joern@xxxxxxxxx> wrote: > > > > stopped custom tracer. > > BUG: spinlock recursion on CPU#0, sh/953 > > lock: c030f280, .magic: dead4ead, .owner: sh/953, .owner_cpu: 0 > > Pid: 953, comm: sh Not tainted 2.6.24-rc3-ge1cca7e8-dirty #2 > > [<c0103a04>] show_trace_log_lvl+0x35/0x54 > > [<c010450a>] show_trace+0x2c/0x2e > > [<c0104e6d>] dump_stack+0x84/0x8a > > [<c01ded7c>] spin_bug+0xa7/0xae > > [<c01def14>] _raw_spin_lock+0x45/0xfa > > [<c02a02b1>] _spin_lock_irqsave+0x68/0x7a > > [<c01087e7>] pit_read+0x14/0x99 > > [<c0130ee9>] get_monotonic_cycles+0xf/0x2d > > ah. You should mark pit_read() function as notrace. PIT clocksource is > rare. (add the 'notrace' word to the function prototype) Hardly a change at all. Apart from some offsets, this dump is identical. stopped custom tracer. BUG: spinlock recursion on CPU#0, sh/954 lock: c030f280, .magic: dead4ead, .owner: sh/954, .owner_cpu: 0 Pid: 954, comm: sh Not tainted 2.6.24-rc3-ge1cca7e8-dirty #3 [<c0103a04>] show_trace_log_lvl+0x35/0x54 [<c010450a>] show_trace+0x2c/0x2e [<c0104e6d>] dump_stack+0x84/0x8a [<c01ded7c>] spin_bug+0xa7/0xae [<c01def14>] _raw_spin_lock+0x45/0xfa [<c02a02b1>] _spin_lock_irqsave+0x68/0x7a [<c01087e2>] pit_read+0xf/0x91 [<c0130ee1>] get_monotonic_cycles+0xf/0x2d [<c013c0e7>] now+0x2a/0x7c [<c013c333>] ____trace+0x4d/0x1e8 [<c013dbeb>] __mcount+0x95/0xa6 [<c010d354>] mcount+0x14/0x18 [<c0135a3c>] lock_acquired+0xe/0x1d7 [<c02a02b9>] _spin_lock_irqsave+0x70/0x7a [<c01087e2>] pit_read+0xf/0x91 [<c0130789>] update_wall_time+0x23/0x692 [<c012174e>] do_timer+0x24/0xb1 [<c01331f6>] tick_periodic+0x49/0x84 [<c0133253>] tick_handle_periodic+0x22/0x73 [<c0106315>] timer_interrupt+0x4f/0x56 [<c013e2bf>] handle_IRQ_event+0x24/0x4f [<c013f442>] handle_edge_irq+0xb8/0x125 [<c01054ee>] do_IRQ+0x89/0xa3 [<c01033df>] common_interrupt+0x23/0x28 [<c010d354>] mcount+0x14/0x18 [<c0120130>] sysctl_head_finish+0xc/0x33 [<c0192d64>] proc_sys_write+0x96/0xa0 [<c015d91c>] vfs_write+0xa6/0x14c [<c015df66>] sys_write+0x4c/0x70 [<c0102a1f>] syscall_call+0x7/0xb ======================= Jörn -- Don't worry about people stealing your ideas. If your ideas are any good, you'll have to ram them down people's throats. -- Howard Aiken quoted by Ken Iverson quoted by Jim Horning quoted by Raph Levien, 1979 _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
