Messages in this thread | | | Date | Thu, 31 Mar 2011 11:35:28 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 2/9] x86 idle: remove NOP cpuinfo_x86.hlt_works_ok flag |
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* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > Btw., we used to auto-detect broken HLT systems IIRC - but that got lost > > already. We should at least honor the boot parameter. > > I don't believe we ever auto detected them or found a way to do so. That > was why the HLT message was printed before hlt was executed.
Yeah - the CPU hang was unrecoverably deep so no auto-detection was possible.
That's seriously ancient stuff - still, keeping the boot option around (<10 lines of code) does not hurt anyone.
Thanks,
Ingo
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