JDK-8331295 : C2: High memory usage reported in PhaseChaitin::Split
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 23,24
  • Priority: P4
  • Status: In Progress
  • Resolution: Unresolved
  • Submitted: 2024-04-29
  • Updated: 2024-08-08
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JDK 24
24Unresolved
Related Reports
Duplicate :  
JDK-8337821 - C2: Hit MemLimit in PhaseChaitin::Split
Relates :  
JDK-8331185 - Enable compiler memory limits in debug builds
Relates :  
JDK-8331283 - [AArch64] C2: Register Allocator uses > 1GB in compiler/c2/TestFindNode.java
Description
Found by [~vnkozlov] when testing the upcoming 1GB default memory limit for compilations in Oracle's CI (https://github.com/openjdk/jdk/pull/18969).

He reported that when started with `-XX:CompileCommand=memlimit,*.*,1g~crash`, the test reaches the 1GB memory limit for its compilation. https://github.com/openjdk/jdk/pull/18969#issuecomment-2080024827

However, unlike the other memory limit break he reported for `compiler/c2/TestFindNode.java`, I was unable to reproduce the problem on my machines. Still, someone at Oracle should look at it.

Original Quote Vladimir:

compiler/loopopts/TestDeepGraphVerifyIterativeGVN.java failed on aarch64 when run with stress flags:

-XX:+UnlockDiagnosticVMOptions -XX:-TieredCompilation -XX:+StressArrayCopyMacroNode -XX:+StressLCM -XX:+StressGCM -XX:+StressIGVN -XX:+StressCCP -XX:+StressMacroExpansion -XX:+StressMethodHandleLinkerInlining -XX:+StressCompiledExceptionHandlers

#  Internal Error (/workspace/open/src/hotspot/share/compiler/compilationMemoryStatistic.cpp:551), pid=912622, tid=912639
#  fatal error: c2 compiler/c2/TestFindNode::test(()V): Hit MemLimit (limit: 1073741824 now: 1073824544)

V  [libjvm.so+0x97496c]  report_fatal(VMErrorType, char const*, int, char const*, ...)+0x108  (debug.cpp:214)
V  [libjvm.so+0x8a9e2c]  CompilationMemoryStatistic::on_arena_change(long, Arena const*)+0x5bc  (compilationMemoryStatistic.cpp:551)
V  [libjvm.so+0x58ee70]  Arena::grow(unsigned long, AllocFailStrategy::AllocFailEnum)+0x10c  (arena.cpp:300)
V  [libjvm.so+0x13eb86c]  PhaseChaitin::Split(unsigned int, ResourceArea*)+0x3ac  (resourceArea.inline.hpp:35)
V  [libjvm.so+0x798a44]  PhaseChaitin::Register_Allocate()+0x554  (chaitin.cpp:553)
V  [libjvm.so+0x8ced88]  Compile::Code_Gen()+0x284  (compile.cpp:2988)
V  [libjvm.so+0x8d1128]  Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1588  (compile.cpp:896)
V  [libjvm.so+0x72d480]  C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x17c  (c2compiler.cpp:142)
Comments
Repeating my comment from JDK-8337821 here so that it is not forgotten: "After fixing the (potential) issue, please remove the flag -XX:CompileCommand=MemLimit,*.*,0 from VectorReplicateLongSpecialImmTest.java."
06-08-2024
See also JDK-8337821.
06-08-2024
Another one with CTW: # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (/workspace/open/src/hotspot/share/compiler/compilationMemoryStatistic.cpp:559), pid=262086, tid=262100 # fatal error: c2 com/zerog/ia/installer/IAStatusLog::<clinit>(()V): Hit MemLimit (limit: 1073741824 now: 1073771408) Current CompileTask: C2:86570 9900 b com.zerog.ia.installer.IAStatusLog::<clinit> (219 bytes) Stack: [0x0000ffff76c0b000,0x0000ffff76e09000], sp=0x0000ffff76e03650, free space=2017k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x167e0c4] VMError::report_and_die(int, char const*, char const*, std::__va_list, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x424 (compilationMemoryStatistic.cpp:559) V [libjvm.so+0x973edc] report_fatal(VMErrorType, char const*, int, char const*, ...)+0x108 (debug.cpp:214) V [libjvm.so+0x8a9360] CompilationMemoryStatistic::on_arena_change(long, Arena const*)+0x370 (compilationMemoryStatistic.cpp:559) V [libjvm.so+0x58d460] Arena::grow(unsigned long, AllocFailStrategy::AllocFailEnum)+0x10c (arena.cpp:299) V [libjvm.so+0x13f3904] PhaseChaitin::Split(unsigned int, ResourceArea*)+0x3c4 (resourceArea.inline.hpp:35) V [libjvm.so+0x7975f4] PhaseChaitin::Register_Allocate()+0x554 (chaitin.cpp:553) V [libjvm.so+0x8ce4a8] Compile::Code_Gen()+0x284 (compile.cpp:2983) V [libjvm.so+0x8d0834] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1540 (compile.cpp:886) V [libjvm.so+0x72cd00] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x17c (c2compiler.cpp:142) V [libjvm.so+0x8dc48c] CompileBroker::invoke_compiler_on_method(CompileTask*)+0x7cc (compileBroker.cpp:2303) V [libjvm.so+0x8dcfd4] CompileBroker::compiler_thread_loop()+0x514 (compileBroker.cpp:1961) V [libjvm.so+0xd3faac] JavaThread::thread_main_inner()+0xcc (javaThread.cpp:759) V [libjvm.so+0x15a3960] Thread::call_run()+0xac (thread.cpp:225) V [libjvm.so+0x12fa384] thread_native_entry(Thread*)+0x130 (os_linux.cpp:846) C [libpthread.so.0+0x7950] start_thread+0x190
06-06-2024
similar crash occured on windows platform https://mach5.us.oracle.com/mdash/jobs/mach5-one-jdk-23+24-1954-tier9-20240522-2025-11095420?search=mach5-one-jdk-23%2B24-1954-tier9-20240522-2025-11095420-tier9-comp-Xcomp-jck_api_javax_swing-any-x64-debug-689 test result : https://mach5.us.oracle.com:10060/api/v1/results/mach5-one-jdk-23+24-1954-tier9-20240522-2025-11095420-tier9-comp-Xcomp-jck_api_javax_swing-any-x64-debug-689-1716416841-1441/log
23-05-2024
ILW = Excessive memory usage which might be expected, single test, no workaround = MLH = P4
30-04-2024
This test failure: # Internal Error (/workspace/open/src/hotspot/share/compiler/compilationMemoryStatistic.cpp:551), pid=2435878, tid=2435913 # fatal error: c2 compiler/loopopts/TestDeepGraphVerifyIterativeGVN::main(([Ljava/lang/String;)V): Hit MemLimit again (limit: 1073741824 now: 1073886384) # # JRE version: Java(TM) SE Runtime Environment (23.0) (fastdebug build 23-internal-2024-04-26-1717393.vladimir.kozlov.jdkgit2) # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 23-internal-2024-04-26-1717393.vladimir.kozlov.jdkgit2, compiled mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-aarch64) Current CompileTask: C2:54689 11 b compiler.loopopts.TestDeepGraphVerifyIterativeGVN::main (3529 bytes) Stack: [0x0000ffff607eb000,0x0000ffff609e9000], sp=0x0000ffff609e2cc0, free space=2015k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x1676114] VMError::report_and_die(int, char const*, char const*, std::__va_list, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x424 (compilationMemoryStatistic.cpp:551) V [libjvm.so+0x97496c] report_fatal(VMErrorType, char const*, int, char const*, ...)+0x108 (debug.cpp:214) V [libjvm.so+0x8a9e2c] CompilationMemoryStatistic::on_arena_change(long, Arena const*)+0x5bc (compilationMemoryStatistic.cpp:551) V [libjvm.so+0x58ee70] Arena::grow(unsigned long, AllocFailStrategy::AllocFailEnum)+0x10c (arena.cpp:300) V [libjvm.so+0x153f6b4] Symbol::as_C_string() const+0x24 (symbol.cpp:140) V [libjvm.so+0x8a9bd0] CompilationMemoryStatistic::on_arena_change(long, Arena const*)+0x360 (compilationMemoryStatistic.cpp:162) V [libjvm.so+0x58ee70] Arena::grow(unsigned long, AllocFailStrategy::AllocFailEnum)+0x10c (arena.cpp:300) V [libjvm.so+0x13eb86c] PhaseChaitin::Split(unsigned int, ResourceArea*)+0x3ac (resourceArea.inline.hpp:35) V [libjvm.so+0x798a44] PhaseChaitin::Register_Allocate()+0x554 (chaitin.cpp:553) V [libjvm.so+0x8ced88] Compile::Code_Gen()+0x284 (compile.cpp:2988) V [libjvm.so+0x8d1128] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1588 (compile.cpp:896) V [libjvm.so+0x72d480] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x17c (c2compiler.cpp:142)
29-04-2024