Package: qt6-l10n-tools Version: 6.11.2-2 Severity: normal Tags: upstream Control: affects -1 stellarium
stellarium builds die because of too low address space to process a 5MiB .po file (po/CMakeLists.txt runs lconvert -i X.po -o X.qm. Qt's loadPO() slurps the whole file): lines.append(dev.readLine().trimmed()); In Qt 6.11, QIODevice::readLineInto() (qtbase/src/corelib/io/qiodevice.cpp) does: """ line->resize(qsizetype(qMin(maxSize, 1 + readBytes + d->buffer.chunkSize()))); ... line->resize(readBytes); """ The buffer is never released. chunkSize() is 32767, so every line allocates exactly 32768 bytes, and the final shrink resize() keeps that capacity (Qt's QByteArray::resize() documents "never shrinks capacity; use squeeze()"). trimmed() then returns *this (nothing left to trim) — a shared copy — so the 32 KiB block is retained in "lines" forever. The ~5MiB file will use over 4GiB of memory to process. Qt5 is okay because that built the same stellarium version on 32 bit systems successfully before. I am not sure where to report it upstream, so I bring it up here.
