From 2c7116ea711c3ff3fe8bf080d3f69646b9c968aa Mon Sep 17 00:00:00 2001 From: Robert Toyonaga Date: Fri, 23 Jan 2026 09:59:34 -0500 Subject: [PATCH] remove whitespace. Add extra message fro linux ENOMEM on uncommit --- src/hotspot/os/linux/os_linux.cpp | 3 +++ src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp | 1 - 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/src/hotspot/os/linux/os_linux.cpp b/src/hotspot/os/linux/os_linux.cpp index ed9d35e1696..c9094495701 100644 --- a/src/hotspot/os/linux/os_linux.cpp +++ b/src/hotspot/os/linux/os_linux.cpp @@ -3453,6 +3453,9 @@ bool os::pd_uncommit_memory(char* addr, size_t size, bool exec) { log_trace(os, map)("mmap failed: " RANGEFMT " errno=(%s)", RANGEFMTARGS(addr, size), os::strerror(ep.saved_errno())); + if (ep.saved_errno() == ENOMEM) { + fatal("Failed to uncommit " RANGEFMT " It is possible that the process's maximum number of mappings would have been exceeded. Try increasing the limit.", RANGEFMTARGS(addr, size)); + } return false; } return true; diff --git a/src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp b/src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp index 4bc703d76cc..3efbb4fcd58 100644 --- a/src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp +++ b/src/hotspot/share/memory/metaspace/virtualSpaceNode.cpp @@ -192,7 +192,6 @@ void VirtualSpaceNode::uncommit_range(MetaWord* p, size_t word_size) { // Uncommit... os::uncommit_memory((char*)p, word_size * BytesPerWord, false); - ASAN_POISON_MEMORY_REGION((char*)p, word_size * BytesPerWord); UL2(debug, "... uncommitted %zu words.", committed_words_in_range);