Date: Tue, 20 Dec 2005 09:49:38 +0530 From: Joseph Koshy <joseph.koshy@gmail.com> To: "Maxim M. Kazachek" <stranger@sberbank.sibnet.ru> Cc: stable@freebsd.org Subject: Re: 6.0/amd64 boot hang if apic enabled on IBM x336 Message-ID: <84dead720512192019q576b0c17ifc7626df472ab580@mail.gmail.com> In-Reply-To: <20051219232434.Q21691@sbk-gw.sibnet.ru> References: <6eb82e0512190529r6a08b505sc483ef43c43889a@mail.gmail.com> <20051219195521.T20708@sbk-gw.sibnet.ru> <84dead720512190622m387d6e78vc2e3b8657f8f2a0d@mail.gmail.com> <20051219232434.Q21691@sbk-gw.sibnet.ru>
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mk> The question I have. Does Intel CPU have HTT in amd64 mk> mode? jk> Yes, AFAIK. mk> Would you tell me how to enable HTT? mk> I've set 2 parameters mk> hyperthreading_allowed=3D"1" mk> hlt_logical_cpus=3D"0" mk> but FreeBSD 6.0-RELEASE does not start logical CPU Please check if your CPU supports multiple HTT "logical CPUs" in the first place. If it does, your dmesg output should be something like the snippet below: >>>><<<<>>>><<<< CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.20-MHz K8-class CPU) Origin =3D "GenuineIntel" Id =3D 0xf41 Stepping =3D 1 Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,= MCA,C MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=3D0x641d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,CX16,<b14>> AMD Features=3D0x20100800<SYSCALL,NX,LM> Hyperthreading: 2 logical CPUs ... FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 6 cpu3 (AP): APIC ID: 7 >>>><<<<>>>><<<< -- FreeBSD Volunteer, http://people.freebsd.org/~jkoshy
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