Datum a čas výpadku: 2018-01-05 03:00 CET Očekavaná délka: 60 minut Výpadek se týká serverů: node1.prg, node2.prg, node3.prg, node4.prg, node3.brq, node1.pgnd Typ výpadku: restart Důvod: Aplikovani zaplaty pro chybu v Intel CPU Výpadek řeší: Pavel Šnajdr, Jakub Skokan, Richard Marko Byla nalezena vazna chyba v Intelich procesorech. Bohuzel jedeme jenom na Intelu, takze budeme muset aplikovat patch do jadra, ktery nam pravdepodobne o neco uzere z CPU vykonu. Jak to pisu, tak patch pro nase jadro jeste neni; pokud neprijde od OpenVZ, naportujeme patch od Red Hatu, jakmile bude venku. V takovem pripade upravime plan rebootu, abychom meli vic casu to otestovat. Odkazu, o co jde, je hodne, kdyztak hodte 'Intel PTI bug' do Sveho Oblibeneho Vyhledavace (tm), vyplivne toho hromadu -> https://www.reddit.com/r/sysadmin/comments/7nl8r0/intel_bug_incoming/ ENGLISH: Date and time: 2018-01-05 03:00 CET Expected duration: 60 minutes Affected systems: node1.prg, node2.prg, node3.prg, node4.prg, node3.brq, node1.pgnd Outage type: restart Reason: Intel CPU bug workaround Handled by: Pavel Šnajdr, Jakub Skokan, Richard Marko A severe bug has been found in Intel CPUs. Unfortunately Intel is all we have now, so we have to apply a workaround as a kernel patch. Which, for one, will slow down performance of our systems. And as of writing this, the patch is not out for our kernel yet (or any nicely portable version for this venerable kernel); but should be soon, at least from Red Hat, if not OpenVZ team (in which case we'll change the announcements accordingly to allow for more QA before deploying). There's a lot of sources, for one of them all (and then Your Favorite Search Engine should spit out tons of other resources if you search for 'Intel PTI bug') -> https://www.reddit.com/r/sysadmin/comments/7nl8r0/intel_bug_incoming/ -----BEGIN BASE64 ENCODED PARSEABLE JSON----- eyJpZCI6NDI1LCJwbGFubmVkIjp0cnVlLCJiZWdpbnNfYXQiOiIyMDE4LTAx LTA1VDAzOjAwOjAwKzAxOjAwIiwiZHVyYXRpb24iOjYwLCJ0eXBlIjoicmVz dGFydCIsImVudGl0aWVzIjpbeyJuYW1lIjoiTm9kZSIsImlkIjoxMDEsImxh YmVsIjoibm9kZTEucHJnIn0seyJuYW1lIjoiTm9kZSIsImlkIjoxMDIsImxh YmVsIjoibm9kZTIucHJnIn0seyJuYW1lIjoiTm9kZSIsImlkIjoxMDMsImxh YmVsIjoibm9kZTMucHJnIn0seyJuYW1lIjoiTm9kZSIsImlkIjoxMDQsImxh YmVsIjoibm9kZTQucHJnIn0seyJuYW1lIjoiTm9kZSIsImlkIjoyMTIsImxh YmVsIjoibm9kZTMuYnJxIn0seyJuYW1lIjoiTm9kZSIsImlkIjozMDAsImxh YmVsIjoibm9kZTEucGduZCJ9XSwiaGFuZGxlcnMiOlsiUGF2ZWwgxaBuYWpk ciIsIkpha3ViIFNrb2thbiIsIlJpY2hhcmQgTWFya28iXSwidHJhbnNsYXRp b25zIjp7ImVuIjp7InN1bW1hcnkiOiJJbnRlbCBDUFUgYnVnIHdvcmthcm91 bmQiLCJkZXNjcmlwdGlvbiI6IkEgc2V2ZXJlIGJ1ZyBoYXMgYmVlbiBmb3Vu ZCBpbiBJbnRlbCBDUFVzLiBVbmZvcnR1bmF0ZWx5IEludGVsIGlzIGFsbFxy XG53ZSBoYXZlIG5vdywgc28gd2UgaGF2ZSB0byBhcHBseSBhIHdvcmthcm91 bmQgYXMgYSBrZXJuZWwgcGF0Y2guIFdoaWNoLFxyXG5mb3Igb25lLCB3aWxs IHNsb3cgZG93biBwZXJmb3JtYW5jZSBvZiBvdXIgc3lzdGVtcy4gQW5kIGFz IG9mIHdyaXRpbmdcclxudGhpcywgdGhlIHBhdGNoIGlzIG5vdCBvdXQgZm9y IG91ciBrZXJuZWwgeWV0IChvciBhbnkgbmljZWx5IHBvcnRhYmxlXHJcbnZl cnNpb24gZm9yIHRoaXMgdmVuZXJhYmxlIGtlcm5lbCk7IGJ1dCBzaG91bGQg YmUgc29vbiwgYXQgbGVhc3QgZnJvbVxyXG5SZWQgSGF0LCBpZiBub3QgT3Bl blZaIHRlYW0gKGluIHdoaWNoIGNhc2Ugd2UnbGwgY2hhbmdlIHRoZSBhbm5v dW5jZW1lbnRzXHJcbmFjY29yZGluZ2x5IHRvIGFsbG93IGZvciBtb3JlIFFB IGJlZm9yZSBkZXBsb3lpbmcpLlxyXG5cclxuVGhlcmUncyBhIGxvdCBvZiBz b3VyY2VzLCBmb3Igb25lIG9mIHRoZW0gYWxsIChhbmQgdGhlbiBZb3VyIEZh dm9yaXRlXHJcblNlYXJjaCBFbmdpbmUgc2hvdWxkIHNwaXQgb3V0IHRvbnMg b2Ygb3RoZXIgcmVzb3VyY2VzIGlmIHlvdSBzZWFyY2hcclxuZm9yICdJbnRl bCBQVEkgYnVnJykgLVx1MDAzZVxyXG5cclxuaHR0cHM6Ly93d3cucmVkZGl0 LmNvbS9yL3N5c2FkbWluL2NvbW1lbnRzLzdubDhyMC9pbnRlbF9idWdfaW5j b21pbmcvIn0sImNzIjp7InN1bW1hcnkiOiJBcGxpa292YW5pIHphcGxhdHkg cHJvIGNoeWJ1IHYgSW50ZWwgQ1BVIiwiZGVzY3JpcHRpb24iOiJCeWxhIG5h bGV6ZW5hIHZhem5hIGNoeWJhIHYgSW50ZWxpY2ggcHJvY2Vzb3JlY2guIEJv aHV6ZWwgamVkZW1lIGplbm9tXHJcbm5hIEludGVsdSwgdGFremUgYnVkZW1l IG11c2V0IGFwbGlrb3ZhdCBwYXRjaCBkbyBqYWRyYSwga3RlcnkgbmFtXHJc bnByYXZkZXBvZG9ibmUgbyBuZWNvIHV6ZXJlIHogQ1BVIHZ5a29udS4gSmFr IHRvIHBpc3UsIHRhayBwYXRjaCBwcm8gbmFzZVxyXG5qYWRybyBqZXN0ZSBu ZW5pOyBwb2t1ZCBuZXByaWpkZSBvZCBPcGVuVlosIG5hcG9ydHVqZW1lIHBh dGNoIG9kIFJlZCBIYXR1LFxyXG5qYWttaWxlIGJ1ZGUgdmVua3UuIFYgdGFr b3ZlbSBwcmlwYWRlIHVwcmF2aW1lIHBsYW4gcmVib290dSwgYWJ5Y2hvbSBt ZWxpXHJcbnZpYyBjYXN1IHRvIG90ZXN0b3ZhdC5cclxuXHJcbk9ka2F6dSwg byBjbyBqZGUsIGplIGhvZG5lLCBrZHl6dGFrIGhvZHRlICdJbnRlbCBQVEkg YnVnJyBkbyBTdmVob1xyXG5PYmxpYmVuZWhvIFZ5aGxlZGF2YWNlICh0bSks IHZ5cGxpdm5lIHRvaG8gaHJvbWFkdSAtXHUwMDNlXHJcblxyXG5odHRwczov L3d3dy5yZWRkaXQuY29tL3Ivc3lzYWRtaW4vY29tbWVudHMvN25sOHIwL2lu dGVsX2J1Z19pbmNvbWluZy8ifX19 -----END BASE64 ENCODED PARSEABLE JSON-----