Fix outstanding bug (FS#158).
Fix outstanding bug (FS#158).

src/cpu/o3/cpu.cc:
    Extra debugging, fix a bug brought up on bug tracker.

--HG--
extra : convert_revision : 23f8b166ba0d0af54e15b651ed28f59a1bc9d2f2

zlfben/gem5,aclifton/cpeg853-gem5,zlfben/gem5,yb-kim/gemV,yb-kim/gemV,cancro7/gem5,qizenguf/MLC-STT,qizenguf/MLC-STT,samueldotj/TeeRISC-Simulator,TUD-OS/gem5-dtu,rallylee/gem5,briancoutinho0905/2dsampling,sobercoder/gem5,gedare/gem5,kaiyuanl/gem5,powerjg/gem5-ci-test,sobercoder/gem5,TUD-OS/gem5-dtu,joerocklin/gem5,qizenguf/MLC-STT,gem5/gem5,gedare/gem5,KuroeKurose/gem5,rjschof/gem5,zlfben/gem5,gedare/gem5,KuroeKurose/gem5,powerjg/gem5-ci-test,TUD-OS/gem5-dtu,briancoutinho0905/2dsampling,HwisooSo/gemV-update,rjschof/gem5,TUD-OS/gem5-dtu,gedare/gem5,gedare/gem5,rjschof/gem5,KuroeKurose/gem5,qizenguf/MLC-STT,Weil0ng/gem5,sobercoder/gem5,yb-kim/gemV,cancro7/gem5,Weil0ng/gem5,sobercoder/gem5,samueldotj/TeeRISC-Simulator,qizenguf/MLC-STT,gem5/gem5,samueldotj/TeeRISC-Simulator,briancoutinho0905/2dsampling,briancoutinho0905/2dsampling,HwisooSo/gemV-update,joerocklin/gem5,rjschof/gem5,rallylee/gem5,zlfben/gem5,gem5/gem5,aclifton/cpeg853-gem5,KuroeKurose/gem5,rallylee/gem5,austinharris/gem5-riscv,yb-kim/gemV,SanchayanMaity/gem5,KuroeKurose/gem5,markoshorro/gem5,yb-kim/gemV,powerjg/gem5-ci-test,TUD-OS/gem5-dtu,gedare/gem5,briancoutinho0905/2dsampling,austinharris/gem5-riscv,yb-kim/gemV,markoshorro/gem5,SanchayanMaity/gem5,sobercoder/gem5,markoshorro/gem5,aclifton/cpeg853-gem5,SanchayanMaity/gem5,austinharris/gem5-riscv,cancro7/gem5,cancro7/gem5,Weil0ng/gem5,austinharris/gem5-riscv,Weil0ng/gem5,rallylee/gem5,cancro7/gem5,kaiyuanl/gem5,markoshorro/gem5,qizenguf/MLC-STT,cancro7/gem5,SanchayanMaity/gem5,rjschof/gem5,rallylee/gem5,HwisooSo/gemV-update,Weil0ng/gem5,kaiyuanl/gem5,gedare/gem5,gem5/gem5,austinharris/gem5-riscv,powerjg/gem5-ci-test,aclifton/cpeg853-gem5,markoshorro/gem5,samueldotj/TeeRISC-Simulator,rallylee/gem5,markoshorro/gem5,aclifton/cpeg853-gem5,aclifton/cpeg853-gem5,joerocklin/gem5,joerocklin/gem5,SanchayanMaity/gem5,samueldotj/TeeRISC-Simulator,yb-kim/gemV,rjschof/gem5,zlfben/gem5,markoshorro/gem5,Weil0ng/gem5,kaiyuanl/gem5,TUD-OS/gem5-dtu,briancoutinho0905/2dsampling,Weil0ng/gem5,qizenguf/MLC-STT,HwisooSo/gemV-update,powerjg/gem5-ci-test,sobercoder/gem5,austinharris/gem5-riscv,HwisooSo/gemV-update,samueldotj/TeeRISC-Simulator,aclifton/cpeg853-gem5,zlfben/gem5,zlfben/gem5,SanchayanMaity/gem5,austinharris/gem5-riscv,HwisooSo/gemV-update,joerocklin/gem5,powerjg/gem5-ci-test,kaiyuanl/gem5,yb-kim/gemV,samueldotj/TeeRISC-Simulator,joerocklin/gem5,KuroeKurose/gem5,gem5/gem5,kaiyuanl/gem5,joerocklin/gem5,gem5/gem5,KuroeKurose/gem5,gem5/gem5,kaiyuanl/gem5,TUD-OS/gem5-dtu,rjschof/gem5,briancoutinho0905/2dsampling,SanchayanMaity/gem5,rallylee/gem5,sobercoder/gem5,powerjg/gem5-ci-test,cancro7/gem5,HwisooSo/gemV-update,joerocklin/gem5