From: Philippe Gerum <rpm@xenomai.org>
To: 梁权 <liang_1911@163.com>
Cc: xenomai@xenomai.org
Subject: Re: every millicsecond interrupt in xenomai domain on a am355x board can cause something wrong?
Date: Sun, 2 Dec 2018 11:00:44 +0100 [thread overview]
Message-ID: <889b8735-6c75-fd3a-ef82-616bdd4b74a4@xenomai.org> (raw)
In-Reply-To: <29ea1621.1e55.1676dbe7a00.Coremail.liang_1911@163.com>
On 12/2/18 8:07 AM, 梁权 wrote:
> To simplify the problem, i do a test without QT like the following program:
> #define MALLOC_SIZE 8*1024*1024
> int main()
> {
> int err;
> char *addr=(char *)0;
> time_t now;
> struct tm *timenow;
> time(&now);
> timenow = localtime(&now);
> printf("%s\n", asctime(timenow));
> addr = (char *)malloc(MALLOC_SIZE);
> if (addr)
> printf("malloc ok\n");
> do
> {
> if (addr){
> memset(addr, 0x12, MALLOC_SIZE/2);
> memset(addr + MALLOC_SIZE/2, 0x34, MALLOC_SIZE/2);
> }
> usleep(1000);
> }while(1);
> return 0;
> }
> After i enable the interrupt for several minutes, the error occur:
> root@am335x-evm:~/tmp# ./testMemset
Ok, thanks for investing time in creating this test snippet. I'll divert
some cycles in a few days to look into this.
--
Philippe.
next prev parent reply other threads:[~2018-12-02 10:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-29 8:03 every millicsecond interrupt in xenomai domain on a am355x board can cause something wrong? 梁权
2018-11-29 11:14 ` Jan Kiszka
2018-11-29 15:15 ` 梁权
2018-11-29 15:25 ` Jan Kiszka
2018-11-29 15:58 ` 梁权
2018-11-29 14:34 ` Philippe Gerum
2018-11-29 15:27 ` 梁权
2018-11-29 15:39 ` Greg Gallagher
2018-11-29 15:50 ` 梁权
2018-11-29 16:40 ` Philippe Gerum
2018-11-30 16:44 ` 梁权
2018-12-02 7:07 ` 梁权
2018-12-02 10:00 ` Philippe Gerum [this message]
2018-12-05 4:17 ` 梁权
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