Qemu on Zynq Hanging

[Joel Sherrill]

On Wed, Mar 10, 2021 at 11:42 AM Chris Johns <chrisj at rtems.org> wrote:

> On 11/3/21 1:22 am, Joel Sherrill wrote:
> > I see qemu hanging for days testing zynq. This is on the Xeon Centos
> computer I
> > use for batch and automated testing.
> >
> > This is ps but top shows six qemu processes having around 2231:52 in CPU
> time
> > used and using 100% CPU. Luckily this machine has more cores than this.
> >
> >   Any ideas?
> Looks like a bug in the tester not timing out these tests. It maybe timing
> out
> but the kill may not be stopping qemu or the testing is missing the timeout
> event. The fact qemu is not finishing by it's self is a contributing
> factor. It
> would require some debugging to find out which it is.
>
> Tests not finishing should be a handled state no matter the reason.
>
> > [joel at devel ~]$ ps -efl | grep test
> > 2 S joel      4423 30108 98  80   0 - 448725 poll_s Mar08 ?
> 1-13:11:11
> > qemu-system-arm -no-reboot -nographic -net none -serial null -serial
> mon:stdio
> > -M xilinx-zynq-a9 -m 256M -kernel
> > ./arm-rtems6/c/xilinx_zynq_a9_qemu/testsuites/tmtests/tm12.exe
> > 0 R joel      6493 30568  0  80   0 - 28204 -      08:20 pts/1
>  00:00:00 grep
> > --color=auto test
> > 2 S joel     15440 30108 97  80   0 - 448715 poll_s Mar08 ?
> 1-14:29:27
> > qemu-system-arm -no-reboot -nographic -net none -serial null -serial
> mon:stdio
> > -M xilinx-zynq-a9 -m 256M -kernel
> > ./arm-rtems6/c/xilinx_zynq_a9_qemu/testsuites/psxtests/psxsysconf.exe
> > 2 S joel     15981 30108 97  80   0 - 448707 poll_s Mar08 ?
> 1-14:26:10
> > qemu-system-arm -no-reboot -nographic -net none -serial null -serial
> mon:stdio
> > -M xilinx-zynq-a9 -m 256M -kernel
> >
> ./arm-rtems6/c/xilinx_zynq_a9_qemu/testsuites/psxtmtests/psxtmbarrier01.exe
> > 2 S joel     19281 30108 97  80   0 - 497737 poll_s Mar08 ?
> 1-14:12:14
> > qemu-system-arm -no-reboot -nographic -net none -serial null -serial
> mon:stdio
> > -M xilinx-zynq-a9 -m 256M -kernel
> > ./arm-rtems6/c/xilinx_zynq_a9_qemu/testsuites/psxtmtests/psxtmsem04.exe
> > 2 S joel     24394 30108 97  80   0 - 448708 poll_s Mar08 ?
> 1-13:52:24
> > qemu-system-arm -no-reboot -nographic -net none -serial null -serial
> mon:stdio
> > -M xilinx-zynq-a9 -m 256M -kernel
> > ./arm-rtems6/c/xilinx_zynq_a9_qemu/testsuites/sptests/sp48.exe
> > 2 S joel     28252 30108 98  80   0 - 497719 poll_s Mar08 ?
> 1-13:38:38
> > qemu-system-arm -no-reboot -nographic -net none -serial null -serial
> mon:stdio
> > -M xilinx-zynq-a9 -m 256M -kernel
> > ./arm-rtems6/c/xilinx_zynq_a9_qemu/testsuites/sptests/spfatal04.exe
> > 0 S joel     30108  6096  0  80   0 - 967025 futex_ Mar08 ?
> 00:00:22
> > python /home/joel/rtems-cron-6/tools/6/bin/rtems-test
> > --rtems-tools=/home/joel/rtems-cron-6/tools/6
> --rtems-bsp=xilinx_zynq_a9_qemu
> > --log=run.log --mail --mail-from=joel at rtems.org <mailto:joel at rtems.org>
> > --mail-to=build at rtems.org <mailto:build at rtems.org> .
>
> Can you kill these tests by hand? If so what was the kill command?
>

Yep. Just use kill PID. I realized that -9 wasn't needed over the few times
this
has happened:

ps -efl | grep test | cut -c10-19 | xargs -e kill


>
> Chris
>
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