https://bugs.kde.org/show_bug.cgi?id=507216
--- Comment #1 from tcanabr...@kde.org --- but why woyld anyone keep 300 konsole windows open? i honestly dont think this is a bug. On Sat, 19 Jul 2025 at 07:43 Askar Safin <bugzilla_nore...@kde.org> wrote: > https://bugs.kde.org/show_bug.cgi?id=507216 > > Bug ID: 507216 > Summary: Konsole fails if I open 300 windows with "QProcess: > Cannot create pipe (Too many open files)"; please, > raise RLIMIT_NOFILE > Classification: Applications > Product: konsole > Version First 25.04.2 > Reported In: > Platform: Debian testing > OS: Linux > Status: REPORTED > Severity: normal > Priority: NOR > Component: single-process > Assignee: konsole-de...@kde.org > Reporter: safinas...@mail.ru > Target Milestone: --- > > SUMMARY > Konsole fails if I open 300 windows with "QProcess: Cannot create pipe (Too > many open files)" > > STEPS TO REPRODUCE > Try to open 300 Konsole windows > > OBSERVED RESULT > All windows close on its own > > EXPECTED RESULT > Windows should not close on its own > > SOFTWARE/OS VERSIONS > Linux/KDE Plasma: Debian Trixie 13, x86_64 > uname -a: Linux comp 6.12.35+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian > 6.12.35-1 (2025-07-03) x86_64 GNU/Linux > KDE Plasma Version: 6.3.5 > KDE Frameworks Version: 6.13.0 > Qt Version: 6.8.2 > Konsole version: 25.04.2 > Wayland > > ADDITIONAL INFORMATION > "journalctl" shows this: > > Jul 19 07:41:26 comp konsole[2187]: org.kde.konsole: foregroundProcessGroup > master_fd < 0 > Jul 19 07:41:26 comp konsole[2187]: QLayout: Cannot add a null widget to > QHBoxLayout/ > Jul 19 07:41:26 comp konsole[2187]: kf.pty: Can't open a pseudo teletype > Jul 19 07:41:26 comp konsole[2187]: org.kde.konsole: foregroundProcessGroup > master_fd < 0 > Jul 19 07:41:26 comp konsole[2187]: QProcess: Cannot create pipe (Too many > open > files) > Jul 19 07:41:26 comp konsole[2187]: QProcess: Cannot create pipe (Too many > open > files) > Jul 19 07:41:26 comp konsole[2187]: QLayout: Cannot add a null widget to > QHBoxLayout/ > Jul 19 07:41:27 comp konsole[2187]: kf.pty: Can't open a pseudo teletype > Jul 19 07:41:27 comp konsole[2187]: org.kde.konsole: foregroundProcessGroup > master_fd < 0 > Jul 19 07:41:27 comp konsole[2187]: QProcess: Cannot create pipe (Too many > open > files) > Jul 19 07:41:27 comp konsole[2187]: QProcess: Cannot create pipe (Too many > open > files) > Jul 19 07:41:27 comp konsole[2187]: QLayout: Cannot add a null widget to > QHBoxLayout/ > Jul 19 07:41:27 comp konsole[2187]: kf.pty: Can't open a pseudo teletype > Jul 19 07:41:27 comp konsole[2187]: org.kde.konsole: foregroundProcessGroup > master_fd < 0 > Jul 19 07:41:27 comp konsole[2187]: QLayout: Cannot add a null widget to > QHBoxLayout/ > Jul 19 07:41:27 comp konsole[2187]: kf.pty: Can't open a pseudo teletype > Jul 19 07:41:27 comp konsole[2187]: org.kde.konsole: foregroundProcessGroup > master_fd < 0 > Jul 19 07:41:27 comp konsole[2187]: The Wayland connection experienced a > fatal > error: Too many open files > Jul 19 07:41:27 comp konsole[4941]: QLayout: Cannot add a null widget to > QHBoxLayout/ > Jul 19 07:41:27 comp systemd[1371]: > app-org.kde.konsole@282b2f16ea744533bf654a1f827f5aad.service: Main process > exited, code=exited, status=255/EXCEPTION > Jul 19 07:41:27 comp systemd[1371]: > app-org.kde.konsole@282b2f16ea744533bf654a1f827f5aad.service: Failed with > result 'exit-code'. > Jul 19 07:41:27 comp systemd[1371]: > app-org.kde.konsole@282b2f16ea744533bf654a1f827f5aad.service: Consumed > 314ms > CPU time, 130.2M memory peak. > Jul 19 07:41:27 comp systemd[1371]: app-org.kde.konsole-2187.scope: > Consumed > 42.811s CPU time, 11.8G memory peak. > > So, it seems Konsole opens too many files. > > I added DefaultLimitNOFILE=524288:524288 to /etc/systemd/user.conf and > /etc/systemd/system.conf . > And the bug disappeared. > So I suggest to follow advice in this Poettering blog > https://0pointer.net/blog/file-descriptor-limits.html and to raise > RLIMIT_NOFILE at startup. > Possibly this change should be propagated to all KDE apps or even to all Qt > apps > > -- > You are receiving this mail because: > You are the assignee for the bug. -- You are receiving this mail because: You are watching all bug changes.
