CONTAP-345057: MGWD jemalloc 保留释放的内存导致 VMEM 耗尽
问题描述
客户反复出现 MGWD 恐慌。
错误字符串:
spm.mgwd.process.exit:EMERGENCY
mgwd: kern.vm.mmap.return:notice]: mmap(2) by mgwd (pid 47814) for size 67108864 failed: VMEM limit exceeded, limit 4294967296, error 12.
mgwd: ucore.panicString:error]: 'mgwd: terminating with uncaught exception of type std::bad_alloc: std::bad_alloc, raising SIGABRT(6) at RIP 0x81e94c58a (pid 47814, uid 0, timestamp 1724667424)'