326b7f663e
We were obtaining different spin mutexes (which disable interrupts after aquisition) and spin waiting for delivery. For example, KSE processes do LDT operations which use smp_rendezvous, while other parts of the system are doing things like tlb shootdowns with a different mutex. This patch uses the common smp_rendezvous mutex for all MD home-grown IPIs that spinwait for delivery. Having the single mutex means that the spinloop to aquire it will enable interrupts periodically, thus avoiding the cross-ipi deadlock. Obtained from: dwhite, alc Reviewed by: jhb |
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| acpica | ||
| amd64 | ||
| compile | ||
| conf | ||
| ia32 | ||
| include | ||
| isa | ||
| linux32 | ||
| pci | ||
| Makefile | ||