Failed test: test/hotspot/jtreg/compiler/uncommontrap/TestDeoptOOM.java

# Internal Error (/home/build/jdk-jdk/src/hotspot/share/logging/logDecorations.cpp:84), pid=15978, tid=16015
# assert(written >= 0) failed: Decorations buffer overflow

Call stack:
#10 0xb5ee543c in report_vm_error(char const*, int, char const*, char const*, ...) ()
#11 0xb654153c in LogDecorations::LogDecorations(LogLevel::type, LogTagSet const&, LogDecorators const&) ()
#12 0xb654ec54 in LogTagSet::vwrite(LogLevel::type, char const*, std::__va_list) ()
#13 0xb654dde4 in LogTargetHandle::print(char const*, ...) ()
#14 0xb654dcec in LogStream::write(char const*, unsigned int) ()
#15 0xb675e99c in OopMapCacheEntry::verify_mask(CellTypeState*, CellTypeState*, int, int) ()
#16 0xb675ebcc in OopMapForCacheEntry::fill_stackmap_for_opcodes(BytecodeStream*, CellTypeState*, CellTypeState*, int) ()
#17 0xb611fd64 in GenerateOopMap::do_method(int, int, int, int) ()
#18 0xb6121858 in GenerateOopMap::interp1(BytecodeStream*) ()
#19 0xb6121f4c in GenerateOopMap::interp_bb(BasicBlock*) ()
#20 0xb675dd0c in OopMapForCacheEntry::compute_map(Thread*) ()
#21 0xb6760098 in OopMapCacheEntry::fill(methodHandle const&, int) ()
#22 0xb6760e18 in OopMapCache::compute_one_oop_map(methodHandle const&, int, InterpreterOopMap*) ()
#23 0xb5feb2bc in frame::describe(FrameValues&, int) ()
#24 0xb6a772e8 in JavaThread::print_frame_layout(int, bool) ()
#25 0xb5f0a3e0 in Deoptimization::unpack_frames(JavaThread*, int) ()
#26 0xb336bc4c in ?? ()

Issue caused by printf function (LogDecorations::create_uptime_decoration -> jio_snprintf) with value of double type - in non-aligned stack mode the function prints big mess to provided char buffer and overflows them.