The C2 compiler occasionally crashes on a continuous integration system running Linux x64 compiling com.intellij.openapi.vfs.newvfs.persistent.PersistentFSImpl::doApplyEvent with the stack looking like this:

Stack: [0x00007f932024d000,0x00007f932034e000], sp=0x00007f9320349890, free space=1010k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xbd5a30] LShiftLNode::Ideal(PhaseGVN*, bool)+0x2a0
V [libjvm.so+0xc6ca42] PhaseIterGVN::transform_old(Node*)+0x92
V [libjvm.so+0x3e11ee] ArrayCopyNode::prepare_array_copy(PhaseGVN*, bool, Node*&, Node*&, Node*&, Node*&, BasicType&, Type const*&, bool&)+0x37e
V [libjvm.so+0x3e2da1] ArrayCopyNode::Ideal(PhaseGVN*, bool)+0x1c1
V [libjvm.so+0xc6ca42] PhaseIterGVN::transform_old(Node*)+0x92
V [libjvm.so+0xc69108] PhaseIterGVN::optimize()+0x118
V [libjvm.so+0x5d7752] Compile::Optimize()+0x1332
V [libjvm.so+0x5d8b75] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, bool, DirectiveSet*)+0xe65
V [libjvm.so+0x5179b1] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x191
V [libjvm.so+0x5e1d8c] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xd2c
V [libjvm.so+0x5e2be7] CompileBroker::compiler_thread_loop()+0x677
V [libjvm.so+0xe69c20] JavaThread::thread_main_inner()+0xd0
V [libjvm.so+0xe6d230] Thread::call_run()+0xc0
V [libjvm.so+0xc23351] thread_native_entry(Thread*)+0xe1

See also attached hs_err files.
The source code for the compiled method can be found here: https://github.com/JetBrains/intellij-community/blob/836025bc355c8f0f6db6d045deee9d7c565cf933/platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/persistent/PersistentFSImpl.java#L1899C49-L1899C49