Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Date | Mon, 1 Sep 2003 15:28:09 -0700 | From | Andrew Morton <> | Subject | Re: repeatable, hard lockup on boot in linux-2.6.0-test4 (more details) |
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"Dale E Martin" <dmartin@cliftonlabs.com> wrote: > > > Are you able to plug any PS/2 devices into the machine, see if that makes > > a difference? > > Yes, plugging in a PS/2 mouse in addition to the USB mouse does allow the > machine to boot up. (Just tried it, thanks for the suggestion.)
OK, don't go away yet ;)
Could you please add this patch and see how far it gets? If you're keen, keep adding more DB() statements, narrow it down further?
drivers/input/serio/i8042.c | 23 ++++++++++++++++++----- include/linux/kernel.h | 1 + 2 files changed, 19 insertions(+), 5 deletions(-)
diff -puN drivers/input/serio/i8042.c~a drivers/input/serio/i8042.c --- 25/drivers/input/serio/i8042.c~a 2003-09-01 15:24:02.000000000 -0700 +++ 25-akpm/drivers/input/serio/i8042.c 2003-09-01 15:25:31.000000000 -0700 @@ -831,36 +831,49 @@ int __init i8042_init(void) { int i; + DB(); dbg_init(); + DB(); if (i8042_platform_init()) return -EBUSY; i8042_aux_values.irq = I8042_AUX_IRQ; i8042_kbd_values.irq = I8042_KBD_IRQ; + DB(); if (i8042_controller_init()) return -ENODEV; + DB(); if (i8042_dumbkbd) i8042_kbd_port.write = NULL; - for (i = 0; i < 4; i++) + for (i = 0; i < 4; i++) { + DB(); i8042_init_mux_values(i8042_mux_values + i, i8042_mux_port + i, i); + } - if (!i8042_nomux && !i8042_check_mux(&i8042_aux_values)) - for (i = 0; i < 4; i++) + if (!i8042_nomux && !i8042_check_mux(&i8042_aux_values)) { + for (i = 0; i < 4; i++) { + DB(); i8042_port_register(i8042_mux_values + i, i8042_mux_port + i); - else - if (!i8042_noaux && !i8042_check_aux(&i8042_aux_values)) + } + } else { + if (!i8042_noaux && !i8042_check_aux(&i8042_aux_values)) { + DB(); i8042_port_register(&i8042_aux_values, &i8042_aux_port); + } + } + DB(); i8042_port_register(&i8042_kbd_values, &i8042_kbd_port); init_timer(&i8042_timer); i8042_timer.function = i8042_timer_func; mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD); + DB(); register_reboot_notifier(&i8042_notifier); return 0; diff -puN include/linux/kernel.h~a include/linux/kernel.h --- 25/include/linux/kernel.h~a 2003-09-01 15:24:02.000000000 -0700 +++ 25-akpm/include/linux/kernel.h 2003-09-01 15:25:55.000000000 -0700 @@ -236,4 +236,5 @@ extern void BUILD_BUG(void); #define __FUNCTION__ (__func__) #endif +#define DB() printk("%s:%d\n", __FILE__, __LINE__) #endif _
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