An gano wani lamari mai mahimmanci a cikin kunshin GPSD, wanda ake amfani da shi don fitar da cikakkun bayanai na lokaci da matsayi daga na'urorin GPS, wanda, a ranar 24 ga Oktoba, za a mayar da lokaci zuwa makonni 1024, watau. lokaci zai canza zuwa Maris 2002. Batun ya bayyana a cikin sakin 3.20 zuwa 3.22 wanda ya haɗa kuma an daidaita shi a cikin sakin GPSD 3.23. Duk masu amfani da tsarin da ke amfani da GPSD suna buƙatar shigar da sabuntawa cikin gaggawa, ko kuma su kasance cikin shiri don gazawa.
Tasirin kuskuren na iya haifar da gazawar da ba za a iya faɗi ba akan tsarin daban-daban, gami da waɗanda ba sa amfani da GPSD kai tsaye, tunda ana amfani da wannan aikace-aikacen don samun sahihan bayanan lokacin akan wasu sabar NTP da aka yi amfani da su don daidaitawa lokaci. Lokacin canjawa lokaci, tsarin zai iya fuskantar matsaloli tare da tantancewa (misali, kalmomin shiga na lokaci ɗaya, Kerberos da sauran hanyoyin tabbatar da samun dama waɗanda ke da lokacin inganci za su daina aiki), tare da tabbatar da takaddun shaida, tare da lissafin da ke sarrafa kewayon lokaci (misali, lissafin lokacin zaman mai amfani). Hakanan ana samun GPSD akan nau'ikan na'urori masu haɗawa da na hannu, waɗanda yawancinsu ba sa karɓar sabuntawar firmware.
Ka'idar GPS tana ba da lissafin mako guda wanda ya ƙidaya makonni tun 5 ga Janairu, 1980. Matsalar ita ce, lokacin watsa shirye-shirye, 10 ragowa ne kawai aka ware don wannan ma'auni, wanda ke nuna ambaliya a kowane mako 1023 (shekaru 19.7). An yi ambaliya ta farko a cikin 1999, na biyu a cikin 2019, na uku kuma a cikin 2038. Wadannan abubuwan da suka faru ana bin diddigin su ta hanyar furodusoshi kuma ana ba su masu kulawa na musamman. A halin yanzu, an aiwatar da sabon tsarin saƙon GPS (CNAV) a layi daya, wanda aka keɓe rago 13 don ma'ajin (watau, ana tsammanin zazzagewa kawai a cikin 2137).
A cikin GPSD, an yi kuskure a cikin ma'ana don gyara bayyanar ƙarin na biyu (ƙara don daidaita agogon atomic na duniya tare da lokacin astronomical na Duniya), wanda saboda haka za a cire 24 da wuri daga lissafin mako na Oktoba. 2021, 1024. Kamar yadda marubucin lambar ya ɗauka, canjin ya kamata ya faru a ranar 31 ga Disamba, 2022, amma fassarar wannan kwanan wata zuwa adadin makonni an yi kuskure ba daidai ba kuma adadin makonni da aka bayar a cikin cak ɗin ya faɗi ƙarƙashin Oktoba 2021 ( ana nuna darajar 2180 maimakon 2600). /* lambar makon duba lafiya, zamanin GPS, da sakan tsalle * Ba ya aiki da kyau tare da koma baya saboda tsalle_tsalle * na iya kasancewa daga mai karɓa, ko daga BUILD_LEAPSECONDS. */ idan (0 < zaman->yanayin->leap_second && 19> session->context->leap_seconds && 2180 < week) {/* zaci tsalle na biyu = 19 by 31 Dec 2022 * haka sati> 2180 shine hanya a nan gaba , kar a yarda da shi */ mako -= 1024; GPSD_LOG(LOG_WARN, & session->context->kuskure, "Rukunin satin GPS. Daidaitacce sati %u don tsalle %d\n", mako, zaman->context->leap_seconds); }
source: budenet.ru