On Tue, 17 Jul 2007, Teufel wrote: > Hi, > > cvsuped kernel sources about 20 mins ago and applied Jeff's new ule patch. > System boots normaly up, but starting qemu with kqemu (either user or user > and kernel space) results immediatly in kernel trap 12 > applying Attilio's patch http://people.freebsd.org/~attilio/kqemu.diff > fixed the kernel trap, but hangs: > > spin lock 0xc0bbf780 (shed lock 1) held by 0xc5114880 (tid 100003) too long > panic: spin lock held too long > cpuid = 0 Can you enable INVARIANTS, WITNESS, KDB and DDB in your kernel? Then get me a trace when this happens and any other consoles prints that look relevant. Thanks, Jeff > > However, using Attilio's patch with the old ULE works. > > Greetings, > > Stephan > > dmesg about CPU follows: > > FreeBSD 7.0-CURRENT #27 > Timecounter "i8254" frequency 1193182 Hz quality 0 > CPU: Intel(R) Core(TM)2 CPU 6600 _at_ 2.40GHz (2404.13-MHz 686-class > CPU) > Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6 > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM> > AMD Features=0x20000000<LM> > AMD Features2=0x1<LAHF> > Cores per package: 2 > real memory = 2146828288 (2047 MB) > avail memory = 2091286528 (1994 MB) > ACPI APIC Table: <A_M_I_ OEMAPIC > > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs > cpu0 (BSP): APIC ID: 0 > cpu1 (AP): APIC ID: 1 > > > > Jeff Roberson wrote: >> http://people.freebsd.org/~jeff/ule.diff >> >> >> >> Briefly, this is still a very suitable scheduler for uniprocessor machines >> while providing stronger affinity and other performance improvements for >> multiprocessor machines. >Received on Tue Jul 17 2007 - 18:29:41 UTC
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