After Linux runs on the Nuvoton NUC972 (arm9 system) for a while, some shell commands stop working properly
I run the Linux system on the hardware and run a custom application on a Nuvoton NUC972 (arm9 processor based system). The application implements complex functions, one of which is the TCP server. Failures occur every few days (time is not fixed, sometimes days, sometimes one month).
Symptoms:
- After SSH login, after inputting the commands such as
topandreboot, the command line has no display. Pressing any keyboard key is invalid, even if the ctrl+c key combination is invalid. - Enter
ping 192.168.1.1. After the command line only displays one line of results, there is no display. - Some commands are normal, for example:
ls,ps -efcommands. - You can log in again using ssh.
- If you kill my application process, it will become a zombie process.
I feel that part of the system is not functioning properly, but it is not completely abnormal. I followed up for a few months and didn't know how to troubleshoot the issue?
embedded-linux
edited Feb 10 at 15:53
JakeGould
32k1098140
asked Feb 10 at 15:43
crazycrazy
11
add a comment |
I run the Linux system on the hardware and run a custom application on a Nuvoton NUC972 (arm9 processor based system). The application implements complex functions, one of which is the TCP server. Failures occur every few days (time is not fixed, sometimes days, sometimes one month).
Symptoms:
- After SSH login, after inputting the commands such as
topandreboot, the command line has no display. Pressing any keyboard key is invalid, even if the ctrl+c key combination is invalid. - Enter
ping 192.168.1.1. After the command line only displays one line of results, there is no display. - Some commands are normal, for example:
ls,ps -efcommands. - You can log in again using ssh.
- If you kill my application process, it will become a zombie process.
I feel that part of the system is not functioning properly, but it is not completely abnormal. I followed up for a few months and didn't know how to troubleshoot the issue?
embedded-linux
edited Feb 10 at 15:53
JakeGould
32k1098140
asked Feb 10 at 15:43
crazycrazy
11
add a comment |
I run the Linux system on the hardware and run a custom application on a Nuvoton NUC972 (arm9 processor based system). The application implements complex functions, one of which is the TCP server. Failures occur every few days (time is not fixed, sometimes days, sometimes one month).
Symptoms:
- After SSH login, after inputting the commands such as
topandreboot, the command line has no display. Pressing any keyboard key is invalid, even if the ctrl+c key combination is invalid. - Enter
ping 192.168.1.1. After the command line only displays one line of results, there is no display. - Some commands are normal, for example:
ls,ps -efcommands. - You can log in again using ssh.
- If you kill my application process, it will become a zombie process.
I feel that part of the system is not functioning properly, but it is not completely abnormal. I followed up for a few months and didn't know how to troubleshoot the issue?
embedded-linux
edited Feb 10 at 15:53
JakeGould
32k1098140
asked Feb 10 at 15:43
crazycrazy
11
I run the Linux system on the hardware and run a custom application on a Nuvoton NUC972 (arm9 processor based system). The application implements complex functions, one of which is the TCP server. Failures occur every few days (time is not fixed, sometimes days, sometimes one month).
Symptoms:
- After SSH login, after inputting the commands such as
topandreboot, the command line has no display. Pressing any keyboard key is invalid, even if the ctrl+c key combination is invalid. - Enter
ping 192.168.1.1. After the command line only displays one line of results, there is no display. - Some commands are normal, for example:
ls,ps -efcommands. - You can log in again using ssh.
- If you kill my application process, it will become a zombie process.
I feel that part of the system is not functioning properly, but it is not completely abnormal. I followed up for a few months and didn't know how to troubleshoot the issue?
embedded-linux
embedded-linux
edited Feb 10 at 15:53
JakeGould
32k1098140
asked Feb 10 at 15:43
crazycrazy
11
edited Feb 10 at 15:53
JakeGould
32k1098140
asked Feb 10 at 15:43
crazycrazy
11
edited Feb 10 at 15:53
JakeGould
32k1098140
edited Feb 10 at 15:53
JakeGould
32k1098140
edited Feb 10 at 15:53
JakeGould
32k1098140
32k1098140
asked Feb 10 at 15:43
crazycrazy
11
asked Feb 10 at 15:43
crazycrazy
11
asked Feb 10 at 15:43
crazycrazy
11
11
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "3"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1404166%2fafter-linux-runs-on-the-nuvoton-nuc972-arm9-system-for-a-while-some-shell-com%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Super User!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1404166%2fafter-linux-runs-on-the-nuvoton-nuc972-arm9-system-for-a-while-some-shell-com%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
