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Date: Thu, 30 Aug 2018 15:48:10 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Siegfried Metz <frame@...lbox.org> Cc: linux-kernel@...r.kernel.org, tglx@...utronix.de, rafael.j.wysocki@...el.com, len.brown@...el.com, rjw@...ysocki.net, diego.viola@...il.com, rui.zhang@...el.com, viktor_jaegerskuepper@...enet.de Subject: Re: REGRESSION: boot stalls on several old dual core Intel CPUs On Thu, Aug 30, 2018 at 03:04:39PM +0200, Peter Zijlstra wrote: > On Thu, Aug 30, 2018 at 12:55:30PM +0200, Siegfried Metz wrote: > > Dear kernel developers, > > > > since mainline kernel 4.18 (up to the latest mainline kernel 4.18.5) > > Intel Core 2 Duo processors are affected by boot stalling early in the > > boot process. As it is so early there is no dmesg output (or any log). > > > > A few users in the Arch Linux community used git bisect and tracked the > > issue down to this the bad commit: > > 7197e77abcb65a71d0b21d67beb24f153a96055e clocksource: Remove kthread > > I just dug out my core2duo laptop (Lenovo T500) and build a tip/master > kernel for it (x86_64 debian distro .config). > > Seems to boot just fine.. 3/3 so far. > > Any other clues? The .config from https://bugzilla.kernel.org/attachment.cgi?id=278183 seems to boot far enough to drop me into a busybox -- it doesn't seem to contain enough bits to actually boot my system and I can't be arsed to figure out what's missing.
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