Messages in this thread | | | Date | Sun, 7 Nov 2004 23:42:25 -0800 | From | Andrew Morton <> | Subject | Re: 2.6.10-rc1-mm3 |
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Ingo Molnar <mingo@elte.hu> wrote: > > > Weird. Can you send me the .config? > > reproducible here too with Paul's .config.
Me too. The problem starts out at tty_register_driver():
if ( !(driver->flags & TTY_DRIVER_NO_DEVFS) ) { for(i = 0; i < driver->num; i++) tty_register_device(driver, i, NULL);
That NULL for the struct device* propagates all the way down to class_hotplug_name() and bang. This bug is present in Linus's tree.
0xc026d8ce in class_hotplug_name (kset=0xc03ccf80, kobj=0xc17b3614) at drivers/base/class.c:278 278 return class_dev->class->name; (gdb) bt #0 0xc026d8ce in class_hotplug_name (kset=0xc03ccf80, kobj=0xc17b3614) at drivers/base/class.c:278 #1 0xc02164eb in kobject_hotplug (kobj=0xc17b3614, action=0) at lib/kobject_uevent.c:243 #2 0xc0215f3a in kobject_add (kobj=0xc17b3614) at lib/kobject.c:188 #3 0xc026db46 in class_device_add (class_dev=0xc17b360c) at drivers/base/class.c:401 #4 0xc026dc0d in class_device_register (class_dev=0xc17b360c) at drivers/base/class.c:427 #5 0xc026e09f in class_simple_device_add (cs=0xcffa3d80, dev=0, device=0x0, fmt=0x0) at drivers/base/class_simple.c:153 #6 0xc0254b8d in tty_register_device (driver=0xc1781c00, index=0, device=0x0) at drivers/char/tty_io.c:2708 #7 0xc0254ed0 in tty_register_driver (driver=0xc1781c00) at drivers/char/tty_io.c:2845 #8 0xc0577a1b in legacy_pty_init () at drivers/char/pty.c:299 #9 0xc0577be9 in pty_init () at drivers/char/pty.c:406 #10 0xc05647da in do_initcalls () at init/main.c:625 #11 0xc056484e in do_basic_setup () at init/main.c:668 #12 0xc0100410 in init (unused=0x80) at init/main.c:736 #13 0xc0104255 in kernel_thread_helper () at arch/i386/kernel/process.c:293
I assume that tty_register_driver is at fault, but will call in Greg for adjudication. - 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/
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