From: Len Brown
Commit a9bcaa02a5104ace6a9d9e4a9cd9192a9e7744d6
("x86/smpboot: Remove SIPI delays from cpu_up()")
Caused some Intel Core2 processors to time-out when bringing up CPU #1.
That patch reduced the SIPI delays from udelay() 300, 200
to udelay() 0, 0 on modern processors.
Several
From: Len Brown
Commit a9bcaa02a5104ace6a9d9e4a9cd9192a9e7744d6
("x86/smpboot: Remove SIPI delays from cpu_up()")
Caused some Intel Core2 processors to time-out when bringing up CPU #1.
That patch reduced the SIPI delays from udelay() 300, 200
to udelay() 0, 0 on modern
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