[RTEMS Project] #3060: ARMv7-M interrupt processing is broken
RTEMS trac
trac at rtems.org
Fri Jul 7 11:28:26 UTC 2017
#3060: ARMv7-M interrupt processing is broken
-----------------------------+------------------------------
Reporter: Sebastian Huber | Owner: Sebastian Huber
Type: defect | Status: closed
Priority: normal | Milestone: 4.11.2
Component: cpukit | Version: 4.11
Severity: normal | Resolution: fixed
Keywords: |
-----------------------------+------------------------------
Changes (by Sebastian Huber <sebastian.huber@…>):
* status: assigned => closed
* resolution: => fixed
Comment:
In [changeset:"7e91901303219f10cf865906931c07c31d2e37f4/rtems"
7e91901/rtems]:
{{{
#!CommitTicketReference repository="rtems"
revision="7e91901303219f10cf865906931c07c31d2e37f4"
arm: Fix ARMv7-M interrupt processing
Right after a "msr basepri_max, %[basepri]" instruction an interrupt
service may still take place (observed at least on Cortex-M7). However,
pendable service calls that are activated during this interrupt service
may be delayed until interrupts are enable again. The
_ARMV7M_Pendable_service_call() did not check that a thread dispatch is
allowed. Move this test from _ARMV7M_Interrupt_service_leave() to
_ARMV7M_Pendable_service_call().
Close #3060.
}}}
--
Ticket URL: <http://devel.rtems.org/ticket/3060#comment:3>
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