44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From a7c9b9eaf75f9574c2ae80094df15942bf54c4ca Mon Sep 17 00:00:00 2001
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From: Sebastian Sumpf <sebastian.sumpf@genode-labs.com>
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Date: Fri, 11 Jan 2013 17:38:28 +0100
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Subject: [PATCH 03/15] Sigma0: raise sigma0's priority to maximum.
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When sigma0 runs on a lower priority than the rest of the threads in the system
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it might come to the point that while answering a page fault or I/O memory area
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request the timeslice of the caller (core-pager) gets fully consumed. As long as
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other threads are still executable and don't block sigma0 won't do progress
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anymore, because it runs at the lowest priority. This commit simply sets
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sigma0's priority to the highest in the system.
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Was: 'sigma0_prio.patch'
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---
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l4/pkg/l4re-core/sigma0/server/src/init.cc | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/l4/pkg/l4re-core/sigma0/server/src/init.cc b/l4/pkg/l4re-core/sigma0/server/src/init.cc
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index c2608ceb..ebd8d479 100644
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--- a/l4/pkg/l4re-core/sigma0/server/src/init.cc
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+++ b/l4/pkg/l4re-core/sigma0/server/src/init.cc
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@@ -27,6 +27,7 @@
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#include "ioports.h"
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#include "mem_man_test.h"
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#include <l4/sys/debugger.h>
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+#include <l4/sys/scheduler.h>
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/* started as the L4 sigma0 task from crt0.S */
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@@ -61,6 +62,10 @@ init(l4_kernel_info_t *info)
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l4_debugger_set_object_name(L4_BASE_FACTORY_CAP, "root factory");
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l4_debugger_set_object_name(L4_BASE_THREAD_CAP, "sigma0");
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+ l4_sched_param_t params = l4_sched_param(255);
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+ l4_scheduler_run_thread(L4_BASE_SCHEDULER_CAP, L4_BASE_THREAD_CAP, ¶ms);
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+
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+
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Page_alloc_base::init();
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init_memory(info);
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--
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2.11.0
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