Linux-kernel mailing list archive 1999-23,: Re: [patch] fix for SMP stuck on IPI-TLB-flush [Re: 2.2.9-ac2 locks solid]

# Re: [patch] fix for SMP stuck on IPI-TLB-flush [Re: 2.2.9-ac2 locks solid]

Ingo Molnar (mingo@chiara.csoma.elte.hu)
Mon, 7 Jun 1999 19:00:40 +0200 (CEST)

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On Mon, 7 Jun 1999, Andrea Arcangeli wrote:

> With this patch applyed a piece of code with irq disabled can also call
> lock_kernel() without risk to deadlock [...]

this again is only hiding the real bug. All places that aquire the kernel
lock with IRQs disabled are likely to be buggy.

-- mingo

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