Description of problem: Had a machine livelock, register dump + backtrace showed one CPU stuck on a lock in prune_icache. Unfortunately I didn't have netdump or a serial console configured, so it was impossible to gather backtraces from the other CPUs. Version-Release number of selected component (if applicable): 2.4.22-1.2166.nptl How reproducible: Only happened once
Created attachment 98129 [details] screenshot of register dump/stack trace
Does 2188 fix this ? Could be another victim of the broken low-latency patch
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