Dave Johnson writes: > > Got this crash with recent 2.6 CVS version. > > CONFIG_SMP and CONFIG_PREEMPT are both on. This in on a sb1250 rev > B2. > > The PC it was trying to lookup is in preempt_schedule_irq(). Without > preempt_schedule_irq in mfinfo[] it ended up with the wrong function > and then dereferenced a NULL FP. Looks like more than preempt_schedule_irq are missing. I've got these in .sched.text: ffffffff8031ea70 T __sched_text_start ffffffff8031eb88 T __down_interruptible ffffffff8031ed18 T schedule ffffffff8031f7e8 T preempt_schedule ffffffff8031f8a8 T preempt_schedule_irq ffffffff8031f9b0 T wait_for_completion ffffffff8031fae0 T wait_for_completion_timeout ffffffff8031fc58 T wait_for_completion_interruptible ffffffff8031fdf0 T wait_for_completion_interruptible_timeout ffffffff8031ff98 T interruptible_sleep_on ffffffff80320070 T interruptible_sleep_on_timeout ffffffff80320160 T sleep_on ffffffff80320238 T sleep_on_timeout ffffffff80320328 T cond_resched ffffffff803203c0 T cond_resched_softirq ffffffff80320478 T yield ffffffff803204b8 T io_schedule ffffffff80320548 T io_schedule_timeout ffffffff803205d8 T console_conditional_schedule ffffffff80320610 T schedule_timeout ffffffff803206f0 t nanosleep_restart ffffffff803207f0 T __wait_on_bit ffffffff80320910 T out_of_line_wait_on_bit ffffffff803209e0 T __wait_on_bit_lock ffffffff80320b28 T out_of_line_wait_on_bit_lock ffffffff80320bf8 T __down_read ffffffff80320d00 T __down_write ffffffff80320e10 T __lock_text_start ffffffff80320e10 T __sched_text_end All of those should be in mfinfo[] with omit_fp 1 for those in kernel/sched.c and 0 for elsewhere. Or am I missing something here? -- Dave Johnson Starent Networks
