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When sigma0 runs on a lower priority than the rest of the threads in the system it might come to the point that while answering a page fault or I/O memory area request the timeslice of the caller (core-pager) gets fully consumed. As long as other threads are still executable and don't block sigma0 won't do progress anymore, because it runs at the lowest priority. This commit simply sets sigma0's priority to the highest in the system. |
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| .. | ||
| crtn_arm_binutils_2.21.1.patch | ||
| fix_exception_ip.patch | ||
| foc_caps_equal.patch | ||
| foc_exregs_ret_state.patch | ||
| foc_single_step_x86.patch | ||
| gendep.patch | ||
| jdb_kobject_names.patch | ||
| README | ||
| sigma0_prio.patch | ||
| timer_arm.patch | ||
| vexpress_detection.patch | ||
The patches in this directory are modifications of the Fiasco.OC kernel required for using this kernel with Genode. :'foc_single_step_x86.patch': This patch enables the user land to use the CPU's single stepping mode on x86_32 platforms. It is needed to enable the use of GDB monitor for user-level debugging. :'fix_exception_ip.patch': On the occurrence of undefined-instruction exceptions on ARM, Fiasco.OC reports a wrong program-counter value to the exception handler. The patch fixes the problem. :'jdb_kobject_names.patch': This patch increases the size of the JDB kernel object names buffer. The original size was too small for some Genode scenarios and caused missing thread names in the kernel debugger thread list.