News: 0001531103

  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Intel Core 2 CPUs Have Been Affected By An Annoying Linux Kernel Bug For 5+ Years

([Intel] 5 Hours Ago Intel Core 2)


A fix was merged to the Linux 6.14 kernel on Friday -- and also for back-porting to existing Linux stable kernels over the coming days -- for fixing an annoying problem with Intel Core 2 processors. The problem, which was introduced to the Linux kernel back in 2019, could lead to system stalls and boot delays for those still using Intel Core 2 CPUs with modern distributions.

It looks like not many are still using Intel Core 2 CPUs with Linux or if they are just sticking to older kernels / distributions. A fix was merged yesterday for a Linux kernel bug introduced in late 2019 to the Intel Idle driver. A few months back a user [1]reported a Linux kernel regression that when upgrading from Debian Bullseye to Debian Bookworm, he found his system getting stuck in the boot process for more than 60 seconds.

The issue comes down to the modern Intel Idle driver not implementing a workaround for Intel Core 2 generation processors where the time stamp counter (TSC) stops in C2 and deeper C-states. In turn this causes stalls and boot delays. The ACPI driver had marked the TSC unstable when noting this situation while only now the Intel Idle driver is making this workaround.

So [2]this fix is merged to Linux 6.14 Git ahead of Linux 6.14-rc5 on Sunday to fix this stalled boot / stuck behavior on old Intel Core 2 systems. The workaround will also be back-ported to stable series in the coming days for those still relying on Intel Core 2 hardware.



[1] https://lore.kernel.org/all/10cf96aa-1276-4bd4-8966-c890377030c3@yahoo.fr/

[2] https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c157d351460bcf202970e97e611cb6b54a3dd4a4



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I Want My Bugs!

An entymologist in Georgia is threatening to sue Microsoft over false
advertising in Windows 2000. "According to Microsoft, Win2K contains
63,000 bugs," he explained. "However, the shrink-wrapped box I purchased
at CompUSSR only had one cockroach along with some worthless papers and a
shiny drink coaster. I got ripped off."

The entymologist hoped that the 63,000 promised bugs would greatly add to
his insect collection. "I had my doubts that Microsoft could deliver
63,000 insects in one small box for only US$299," he said. "However, with
a company as innovative as Microsoft, the sky is the limit. Or at least
that's what I thought." He then asked angrily, "Where do I want to go
today? Back to the store for a refund!"