[Pkg-mono-svn-commits] [mono] branch master-experimental-patches/avoid_nop_instruction_on_mips created (now 8a07907)
Jo Shields
directhex at moszumanska.debian.org
Wed Nov 20 22:15:25 UTC 2013
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directhex pushed a change to branch master-experimental-patches/avoid_nop_instruction_on_mips
in repository mono.
at 8a07907 There is a bug in the silicon on Loongson 2E and 2F processors, which can cause the traditional NOP instruction (which doesn't exist on MIPS but is an alias to 'sll 0,0,0') to fail intermittently under high load. This is worked around in binutils (https://sourceware.org/ml/binutils/2009-11/msg00387.html) but that only applies to software compiled via binutils, not via a JITter like Mono. The fix uses a different no-op instruction which does not trigger the CPU bug. T [...]
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