Messages in this thread | | | Date | Sun, 18 Nov 2007 20:09:51 +0100 | From | Jiri Slaby <> | Subject | Re: broken suspend [Was: 2.6.24-rc2-mm1] |
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On 11/18/2007 06:07 PM, Alan Stern wrote: > You'll get more useful results if you redo your changes to > notifier_call_chain(). Have it print out the address of the routine > _before_ making the call, and don't limit it to 20. That way you'll > know exactly which notifier routine ends up hanging.
The problem is, that notifier_call_chain is called again and again zillion times by somebody else...
Anyway you led me to another idea: * _cpu_down printk("%s: u\n", __func__); BUBAK=1; /* CPU is completely dead: tell everyone. Too late to complain. */ if (raw_notifier_call_chain(&cpu_chain, CPU_DEAD | 0x88000 | mod, hcpu) == NOTIFY_BAD) BUG(); BUBAK=0; ----- * notifier_call_chain unsigned int a = val & 0x88000; unsigned int yes = a == 0x88000;
nb = rcu_dereference(*nl);
if (a && a != 0x88000) printk("Somebody calls with val: %lx\n", val); else val &= ~0x88000;
while (nb && nr_to_call) { next_nb = rcu_dereference(nb->next); if (unlikely(BUBAK && yes)) printk("%s: %p\n", __func__, nb->notifier_call); ret = nb->notifier_call(nb, val, v); ----- gives coretemp_cpu_callback -> coretemp_device_remove -> platform_device_unregister, so coretemp seems to be what I have and you don't.
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