On Sun, 1 Apr 2007, Pavel Machek wrote:
>
> > @@ -183,7 +183,8 @@ int driver_register(struct device_driver
> > void driver_unregister(struct device_driver * drv)
> > {
> > bus_remove_driver(drv);
> > - wait_for_completion(&drv->unloaded);
> > + if (!drv->unloaded.done)
> > +
Hi!
> @@ -183,7 +183,8 @@ int driver_register(struct device_driver
> void driver_unregister(struct device_driver * drv)
> {
> bus_remove_driver(drv);
> - wait_for_completion(&drv->unloaded);
> + if (!drv->unloaded.done)
> + WARN_ON(1);
> }
WARN_ON(!done)?
* Greg KH <[EMAIL PROTECTED]> wrote:
> Something has grabbed a reference to the driver...
>
> Oh wait, is this code a module or built into the kernel?
>
> If it's built in, there's still a reference counting bug in the
> module/driver hookup logic as we really don't have a "module" yet we
> a
On Fri, 2007-03-30 at 12:32 -0700, Greg KH wrote:
> On Fri, Mar 30, 2007 at 07:46:19PM +0200, Ingo Molnar wrote:
> >
> > * Greg KH <[EMAIL PROTECTED]> wrote:
> >
> > > > BUG: at drivers/base/driver.c:187 driver_unregister()
> > > > [] show_trace_log_lvl+0x19/0x2e
> > > > [] show_trace+0x12/0
On Fri, Mar 30, 2007 at 07:46:19PM +0200, Ingo Molnar wrote:
>
> * Greg KH <[EMAIL PROTECTED]> wrote:
>
> > > BUG: at drivers/base/driver.c:187 driver_unregister()
> > > [] show_trace_log_lvl+0x19/0x2e
> > > [] show_trace+0x12/0x14
> > > [] dump_stack+0x14/0x16
> > > [] driver_unregister
* Greg KH <[EMAIL PROTECTED]> wrote:
> > BUG: at drivers/base/driver.c:187 driver_unregister()
> > [] show_trace_log_lvl+0x19/0x2e
> > [] show_trace+0x12/0x14
> > [] dump_stack+0x14/0x16
> > [] driver_unregister+0x3d/0x43
> > [] pci_unregister_driver+0x10/0x5f
> > [] slgt_init+0x9b/0
On Fri, Mar 30, 2007 at 02:04:16PM +0200, Ingo Molnar wrote:
>
> i just found a new category of driver regressions in 2.6.21, doing
> allyesconfig bzImage bootup tests: the init methods of various drivers
> hangs in driver_unregister().
>
> It is caused by this problem: the semantics of driver_
i just found a new category of driver regressions in 2.6.21, doing
allyesconfig bzImage bootup tests: the init methods of various drivers
hangs in driver_unregister().
It is caused by this problem: the semantics of driver_unregister() [also
implicitly called in pci_driver_unregister()] has app
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