We're trying to get a PREEMPT_RT kernel running on a BeagleBoard C4 (OMAP3 Arm architecture). We're using kernel version 2.6.33, with patches from patch-2.6.33.6-rt26.gz On boot, we start seeing messages of this form: ---- [ 4528.227294] BUG: sleeping function called from invalid context at kernel/rtmutex.c:684 [ 4528.227294] pcnt: 1 0 in_atomic(): 1, irqs_disabled(): 128, pid: 223, name: modprobe [ 4528.227355] [<c0044490>] (unwind_backtrace+0x0/0xe8) from [<c04cb4e4>] (rt_spin_lock+0x30/0x5c) [ 4528.227386] [<c04cb4e4>] (rt_spin_lock+0x30/0x5c) from [<c032e3b0>] (twl4030_sih_set_type+0x3c/0xac) [ 4528.227416] [<c032e3b0>] (twl4030_sih_set_type+0x3c/0xac) from [<c00aa944>] (__irq_set_trigger+0x34/0x88) [ 4528.227447] [<c00aa944>] (__irq_set_trigger+0x34/0x88) from [<c00ab2ec>] (__setup_irq+0x34c/0x3c0) [ 4528.227478] [<c00ab2ec>] (__setup_irq+0x34c/0x3c0) from [<c00ab430>] (request_threaded_irq+0xd0/0x148) [ 4528.227508] [<c00ab430>] (request_threaded_irq+0xd0/0x148) from [<bf021770>] (twl_rtc_probe+0x104/0x1fc [rtc_twl]) [ 4528.227539] [<bf021770>] (twl_rtc_probe+0x104/0x1fc [rtc_twl]) from [<c0324e2c>] (platform_drv_probe+0x18/0x1c) [ 4528.227569] [<c0324e2c>] (platform_drv_probe+0x18/0x1c) from [<c0323eec>] (driver_probe_device+0x98/0x194) [ 4528.227600] [<c0323eec>] (driver_probe_device+0x98/0x194) from [<c0324074>] (__driver_attach+0x8c/0x90) [ 4528.227600] [<c0324074>] (__driver_attach+0x8c/0x90) from [<c0323744>] (bus_for_each_dev+0x60/0x8c) [ 4528.227630] [<c0323744>] (bus_for_each_dev+0x60/0x8c) from [<c0323014>] (bus_add_driver+0xa0/0x240) [ 4528.227661] [<c0323014>] (bus_add_driver+0xa0/0x240) from [<c0324324>] (driver_register+0x78/0x13c) [ 4528.227661] [<c0324324>] (driver_register+0x78/0x13c) from [<c003e3c0>] (do_one_initcall+0x30/0x1c0) [ 4528.227691] [<c003e3c0>] (do_one_initcall+0x30/0x1c0) from [<c0097e40>] (sys_init_module+0xc4/0x1f8) [ 4528.227722] [<c0097e40>] (sys_init_module+0xc4/0x1f8) from [<c003ea60>] (ret_fast_syscall+0x0/0x2c) --- I'm hoping that someone will recognize this problem and be able to suggest a simple fix. Any help would be very much appreciated! Thanks, Jeremy -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
