lkml.org 
[lkml]   [2007]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: EIP is at device_shutdown+0x32/0x60
    On Thu, 15 Nov 2007 21:55:34 +0900,
    Yasunori Goto <y-goto@jp.fujitsu.com> wrote:

    > /**
    > * device_shutdown - call ->shutdown() on each device to shutdown.
    > */
    > void device_shutdown(void)
    > {
    > struct device * dev, *devn;
    >
    > list_for_each_entry_safe_reverse(dev, devn, &devices_kset->list,
    > kobj.entry) {
    > if (dev->bus && dev->bus->shutdown) {
    > dev_dbg(dev, "shutdown\n");
    > dev->bus->shutdown(dev);
    > } else if (dev->driver && dev->driver->shutdown) {
    > dev_dbg(dev, "shutdown\n");
    > dev->driver->shutdown(dev);
    > }
    > }
    > }
    > --------
    > When oops occured, dev->driver pointed kset_ktype's address,
    > and dev->driver->shutdown was the address of bus_type_list.
    > So, Oops was caused by "Illegal operation fault".
    > kset_ktypes is pointed by system_kset.
    >
    > If my understanding is correct, this loop can't distinguish between
    > struct device and struct kset, but both are connected in this list,
    > right? It may be the cause of this.

    Uh. This fits with my observations on s390 as well (the list is not
    corrupted, but it contains entities that are not devices...)

    The other entries under /sys/devices (on my system css0, platform,
    qeth) are all struct devices. This sysdev stuff is headache-inducing :(
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-11-15 14:19    [W:0.022 / U:4.516 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site