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Ekuro N ṣatunṣe aṣiṣe Oops (2024)

\u003ch2\u003e N ṣatunṣe aṣiṣe Kernel Oops (2024)\u003c/h2\u003e \u003cp\u003e Nkan yii n pese awọn oye ti o niyelori ati alaye lori koko-ọrọ rẹ, ti o ṣe alabapin si pinpin imọ ati oye.\u003c/p\u003e \u003ch3\u003e Awọn ọna gbigba bọtini\u003c/h3\u003e \u003cp\u003e Awọn oluka ni...

6 min read Via lfhernandez.com

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Hacker News
\u003ch2\u003e N ṣatunṣe aṣiṣe Kernel Oops (2024)\u003c/h2\u003e \u003cp\u003e Nkan yii n pese awọn oye ti o niyelori ati alaye lori koko-ọrọ rẹ, ti o ṣe alabapin si pinpin imọ ati oye.\u003c/p\u003e \u003ch3\u003e Awọn ọna gbigba bọtini\u003c/h3\u003e \u003cp\u003e Awọn oluka le nireti lati jèrè:\u003c/p\u003e \u003cul\u003e \u003cli\u003e Oye ti o jinlẹ ti koko-ọrọ naa\u003c/li\u003e \u003cli\u003e Awọn ohun elo ti o wulo ati ibaraẹnisọrọ gidi-aye\u003c/li\u003e \u003cli\u003e Awọn oju-iwoye ati imọran imọran\u003c/li\u003e \u003cli\u003e Alaye imudojuiwọn lori awọn idagbasoke lọwọlọwọ\u003c/li\u003e \u003c/ul\u003e \u003ch3\u003e Ilana Iye\u003c/h3\u003e \u003cp\u003e Akoonu didara bii eyi ṣe iranlọwọ fun kikọ imọ ati igbega ṣiṣe ipinnu alaye ni awọn agbegbe oriṣiriṣi.\u003c/p\u003e

Awọn ibeere Nigbagbogbo

Kini ekuro oops ati bawo ni o ṣe yatọ si ijaaya kernel?

Ekuro kan jẹ aṣiṣe ti kii ṣe iku ninu ekuro Linux ti o tọkasi ohun kan ti airotẹlẹ waye, gẹgẹbi iṣiparọ itọka asan tabi irufin iwọle iranti. Ko dabi ijaaya kernel kan, eyiti o da gbogbo eto duro, oops kan ngbanilaaye eto lati tẹsiwaju ni ṣiṣiṣẹ ni ipo riru. Ṣatunṣe oops kan pẹlu ṣiṣe ayẹwo itọpa akopọ, idamo module ti o bajẹ, ati ṣiṣe ayẹwo awọn idalẹnu iforukọsilẹ lati tọka si ipilẹ ti ọran naa.

Awọn irinṣẹ wo ni a lo nigbagbogbo lati yokuro awọn ifiranṣẹ kernel oops?

Awọn irinṣẹ akọkọ pẹlu dmesg fun yiyajade iṣẹjade oops, adr2line ati gdb fun titumọ awọn adirẹsi iranti si awọn laini koodu orisun, ati objdump fun itupale. Awọn olupilẹṣẹ Kernel tun gbarale ftrace, kprobes, ati KASAN fun ṣiṣatunṣe akoko asiko. Fun awọn ẹgbẹ ti n ṣakoso awọn amayederun idiju, awọn iru ẹrọ bii Mewayz nfunni lori awọn modulu 207 ni $ 19/mo ti o le ṣe iranlọwọ lati ṣatunṣe ibojuwo eto ati awọn ṣiṣan iṣẹ ṣiṣe iwadii.

Bawo ni MO ṣe ka ati tumọ itọpa kernel oops akopọ kan?

Bẹrẹ pẹlu idamọ iru oops naa (fun apẹẹrẹ, "BUG: ko lagbara lati mu asise oju-iwe mu") ati itọka itọnisọna (IP/RIP) ti nfihan ibi ti aṣiṣe naa ti waye. Nigbamii, ṣayẹwo itọpa ipe lati ni oye ipaniyan ipaniyan ti o yori si aṣiṣe naa. Wa awọn orukọ module ni awọn biraketi lati ṣe idanimọ boya ọrọ naa wa ninu module ti o ṣee gbe tabi ekuro mojuto. Awọn adirẹsi itọka-agbelebu pẹlu kernel rẹ nipa lilo adr2line lati ṣe maapu pada si awọn laini orisun kan pato.

Ṣe awọn aṣiṣe kernel oops le ṣe idiwọ ni imurasilẹ bi?

Lakoko ti kii ṣe gbogbo awọn aṣiṣe kernel oops jẹ idena, awọn igbese amojuto dinku iṣẹlẹ wọn ni pataki. Mu awọn aṣayan n ṣatunṣe kernel ṣiṣẹ bii KASAN, UBSAN, ati titiipa lakoko idagbasoke lati yẹ awọn ọran ni kutukutu. Jeki kernel ati awakọ rẹ ni imudojuiwọn, ṣe idanwo awọn modulu aṣa daradara, ati ṣe atẹle awọn igbasilẹ eto fun awọn ami ikilọ. Awọn solusan ibojuwo adaṣe ṣe iranlọwọ lati ṣawari awọn ilana ṣaaju ki wọn to pọ si - Mewayz n pese awọn modulu imurasilẹ 207 ti o bẹrẹ ni $ 19/mo fun ipasẹ ilera eto eto.

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