From: Russell King This oops has been caused by the need to register the class before registering any objects against it. Unfortunately, the class needs to be registered asynchronously in a separate thread to avoid driver model deadlock with yenta with cardbus cards inserted or standard PCMCIA cards not being detected correctly due to a race. I think the only real solution is to remove the class_device_create_file calls from all socket drivers. This is just a simple commenting out of the calls, and should be suitable for the remainder of the -test kernels. Due to the number of cases that we're encountering with PCMCIA, I'm beginning to wonder if the driver model could be fixed to be more kind to PCMCIA by avoiding some of these ordering dependencies. None of this would be a problem if the driver model would allow PCI device drivers to register PCI devices while their probe or remove functions were executing. Below is a completely untested patch. Arnaldo - please test whether this fixes your problem. drivers/pcmcia/i82365.c | 4 ++++ 1 files changed, 4 insertions(+) diff -puN drivers/pcmcia/i82365.c~i82365-sysfs-ordering-fix drivers/pcmcia/i82365.c --- 25/drivers/pcmcia/i82365.c~i82365-sysfs-ordering-fix 2003-10-13 02:13:56.000000000 -0700 +++ 25-akpm/drivers/pcmcia/i82365.c 2003-10-13 02:13:56.000000000 -0700 @@ -1211,6 +1211,7 @@ static int i365_set_mem_map(u_short sock return 0; } /* i365_set_mem_map */ +#if 0 /* driver model ordering issue */ /*====================================================================== Routines for accessing socket information and register dumps via @@ -1250,6 +1251,7 @@ static ssize_t show_exca(struct class_de static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL); static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL); +#endif /*====================================================================*/ @@ -1414,10 +1416,12 @@ static int __init init_i82365(void) pcmcia_unregister_socket(&socket[i].socket); break; } +#if 0 /* driver model ordering issue */ class_device_create_file(&socket[i].socket.dev, &class_device_attr_info); class_device_create_file(&socket[i].socket.dev, &class_device_attr_exca); +#endif } /* Finally, schedule a polling interrupt */ _