From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>,
Bruce Schlobohm <bruce.schlobohm@intel.com>,
Roland Scheidegger <rscheidegger_lists@hispeed.ch>,
Kevin Stanton <kevin.b.stanton@intel.com>,
Allen Hung <allen_hung@dell.com>
Subject: [patch 0/2] tsc/adjust: Cure suspend/resume issues and prevent TSC deadline timer irq storm
Date: Tue, 13 Dec 2016 13:14:17 -0000 [thread overview]
Message-ID: <20161213131115.764824574@linutronix.de> (raw)
Roland reported interesting TSC ADJUST register wreckage on his DELL
machine, which seems to populate that MSR with a random number generator.
Deeper investagation into fixing this wreckage unearthed another special
feature which is designed by Intel: Negative TSC adjuste values cause
interrupt storms on the TSC deadline timer. Further details in patch 2/2
Thanks
tglx
next reply other threads:[~2016-12-13 13:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-13 13:14 Thomas Gleixner [this message]
2016-12-13 13:14 ` [patch 1/2] x86/tsc: Validate TSC_ADJUST after resume Thomas Gleixner
2016-12-13 13:22 ` Peter Zijlstra
2016-12-13 13:23 ` Thomas Gleixner
2016-12-15 10:52 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2016-12-13 13:14 ` [patch 2/2] x86/tsc: Force TSC_ADJUST register to value >= zero Thomas Gleixner
2016-12-13 13:43 ` Peter Zijlstra
2016-12-13 15:49 ` Thomas Gleixner
2016-12-15 10:53 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2016-12-16 11:46 ` [patch 2/2] " Thomas Gleixner
2016-12-16 11:52 ` Ingo Molnar
2016-12-16 11:53 ` Thomas Gleixner
2016-12-16 13:33 ` Thomas Gleixner
2016-12-13 16:34 ` [patch 0/2] tsc/adjust: Cure suspend/resume issues and prevent TSC deadline timer irq storm Roland Scheidegger
2016-12-13 16:46 ` Thomas Gleixner
2016-12-14 1:36 ` Roland Scheidegger
2016-12-14 7:31 ` Thomas Gleixner
2016-12-14 20:59 ` Thomas Gleixner
2016-12-14 21:40 ` Thomas Gleixner
2016-12-14 22:54 ` Roland Scheidegger
2016-12-15 9:31 ` Thomas Gleixner
2017-01-26 23:40 ` Stanton, Kevin B
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