From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.66.174.4 with SMTP id bo4mr21652375pac.23.1424104487081; Mon, 16 Feb 2015 08:34:47 -0800 (PST) X-Received: by 10.182.78.65 with SMTP id z1mr147005obw.10.1424104486931; Mon, 16 Feb 2015 08:34:46 -0800 (PST) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!feeder.eternal-september.org!feeder.erje.net!eu.feeder.erje.net!newspeer1.nac.net!border2.nntp.dca1.giganews.com!nntp.giganews.com!hl2no17312851igb.0!news-out.google.com!db6ni25589igc.0!nntp.google.com!hl2no11918680igb.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Mon, 16 Feb 2015 08:34:46 -0800 (PST) In-Reply-To: <27492d6c-3bf8-4eb9-8ebb-4d9f621235eb@googlegroups.com> Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=74.203.194.21; posting-account=bXcJoAoAAAAWI5APBG37o4XwnD4kTuQQ NNTP-Posting-Host: 74.203.194.21 References: <27492d6c-3bf8-4eb9-8ebb-4d9f621235eb@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <89771f8d-aa21-4676-b02b-a98e51d3cc85@googlegroups.com> Subject: Re: Ravenscar and context switching for Cortex-M4 From: Patrick Noffke Injection-Date: Mon, 16 Feb 2015 16:34:46 +0000 Content-Type: text/plain; charset=ISO-8859-1 Xref: news.eternal-september.org comp.lang.ada:24970 Date: 2015-02-16T08:34:46-08:00 List-Id: On Monday, February 16, 2015 at 10:28:00 AM UTC-6, Patrick Noffke wrote: > 6. T2 (SPI task) executes twice. Upon the second execution, I get a program error because Object.Entry_Queue is null. The exception is raised in s-tposen-raven.adb (line 167 in my copy) in Protected_Single_Entry_Call. Just to clarify -- the exception is because Object.Entry_Queue is *not* null. Patrick