https://bugs.kde.org/show_bug.cgi?id=513523
Bug ID: 513523
Summary: Dolphin often hangs when creating a directory on a
NTFS volume
Classification: Applications
Product: dolphin
Version First 25.12.0
Reported In:
Platform: CachyOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: view-engine: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
When creating a directory on a NTFS volume using Dolphin, Dolphin can hang
indefinitely until SIGTERM'ed. This occurs with both the ntfs-3g and in-kernel
ntfs3 driver.
The apparent cause is that Dolphin enters an infinite event loop after
directory creation, continuously receiving and processing Wayland events (file
descriptor 3). The strace shows a repeating pattern of poll() → recvmsg() →
EAGAIN cycling indefinitely, consuming 100% CPU. The directory is successfully
created, but Dolphin gets stuck in what appears to be a widget update feedback
loop. This is indicated via a repeating pattern of the following messages in
strace:
```
139678 recvmsg(3, {msg_namelen=0}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = -1 EAGAIN
(Resource temporarily unavailable)
139678 poll([{fd=3, events=POLLIN}, {fd=12, events=POLLIN}], 2, -1) = 1
([{fd=3, revents=POLLIN}])
139678 recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="\34\0\0\0\2\0\24\0\204`\205\3\0c\3\0\0000\0\0\34\0\0\0\5\0\10\0",
iov_len=1776}, {iov_base="", iov_len=2320}], msg_iovlen=2, msg_controllen=0,
msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 28
```
STEPS TO REPRODUCE
1. Open Dolphin to a mounted NTFS volume
2. Create a directory inside the currently visible directory (repeat until bug
occurs, it shouldn't take more than a few attempts)
OBSERVED RESULT
Dolphin hangs, consuming 100% of CPU
EXPECTED RESULT
Dolphin should not hang
SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux
Dolphin Version: 25.12.0
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.18.1-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor
Memory: 64 GiB of RAM (62.4 GiB usable)
Graphics Processor: AMD Radeon RX 7900 XTX
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