Bug 510494

Summary: kate memory leak
Product: [Applications] kate Reporter: testc2n14
Component: generalAssignee: KWrite Developers <kwrite-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: waqar.17a
Priority: NOR    
Version First Reported In: 25.08.2   
Target Milestone: ---   
Platform: Gentoo Packages   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description testc2n14 2025-10-11 13:36:02 UTC
basicaly when i open a proton log (4.5 gb) file with kate and tell it to go to the bottom of the file kate freezes and got up to 45 gb of ram useage befor i rushed to go and kill it via mission center


STEPS TO REPRODUCE
open proton log file
OBSERVED RESULT
kate freezes and uses 45 gb of ram

EXPECTED RESULT
kate dosen't freeze and uses alot less then 45 gb of ram

SOFTWARE/OS VERSIONS
```
c2@gentoobtw ~ $ fastfetch
         -/oyddmdhs+:.                 c2@gentoobtw
     -odNMMMMMMMMNNmhy+-`              ------------
   -yNMMMMMMMMMMMNNNmmdhy+-            OS: Gentoo Linux x86_64
 `omMMMMMMMMMMMMNmdmmmmddhhy/`         Kernel: Linux 6.17.1-cachyos
 omMMMMMMMMMMMNhhyyyohmdddhhhdo`       Uptime: 13 mins
.ydMMMMMMMMMMdhs++so/smdddhhhhdm+`     Packages: 2136 (emerge), 28 (flatpak-system), 1 (flatpak-user)
 oyhdmNMMMMMMMNdyooydmddddhhhhyhNd.    Shell: bash 5.3.3
  :oyhhdNNMMMMMMMNNNmmdddhhhhhyymMh    Display (Odyssey G7): 3840x2160 in 31", 165 Hz [External, HDR]
    .:+sydNMMMMMNNNmmmdddhhhhhhmMmy    DE: KDE Plasma 6.4.5
       /mMMMMMMNNNmmmdddhhhhhmMNhs:    WM: KWin (Wayland)
    `oNMMMMMMMNNNmmmddddhhdmMNhs+`     WM Theme: Infinity-Solid-Aurorae-6
  `sNMMMMMMMMNNNmmmdddddmNMmhs/.       Theme: Breeze (Custum_blues_and_purples) [Qt], Breeze-Dark [GTK2], Breeze [GTK3/4]
 /NMMMMMMMMNNNNmmmdddmNMNdso:`         Icons: Vivid-Dark-Icons [Qt], Vivid-Dark-Icons [GTK2/3/4]
+MMMMMMMNNNNNmmmmdmNMNdso/-            Font: Noto Sans (10pt) [Qt], Noto Sans (10pt) [GTK2/3/4]
yMMNNNNNNNmmmmmNNMmhs+/-`              Cursor: breeze (24px)
/hMMNNNNNNNNMNdhs++/-`                 Terminal: konsole 25.8.2
`/ohdmmddhys+++/:.`                    CPU: AMD Ryzen 9 9950X3D (32) @ 5.76 GHz
  `-//////:--.                         GPU 1: AMD Radeon RX 7900 XTX [Discrete]
                                       GPU 2: AMD Radeon RX 6600 [Discrete]
                                       gpu driver: AMD Radeon RX 6600 (radeonsi, navi23, LLVM 20.1.8, DRM 3.64, 6.17.1-cachyos)
                                       Memory: 9.12 GiB / 93.94 GiB (10%)
                                       Swap: 10.44 GiB / 16.00 GiB (65%)
                                       Disk (/): 615.34 GiB / 914.07 GiB (67%) - xfs
                                       Disk (/run/media/hdd): 4.88 TiB / 10.83 TiB (45%) - ext4
                                       Disk (/run/media/nvme2): 125.46 GiB / 232.88 GiB (54%) - btrfs
                                       Disk (/run/media/pciessd): 27.50 GiB / 476.71 GiB (6%) - xfs
                                       Disk (/run/media/wdssd): 1.03 TiB / 1.82 TiB (57%) - xfs
                                       Locale: en_US.UTF-8

                                                               
                                                               
c2@gentoobtw ~ $ 
```
Comment 1 Waqar Ahmed 2025-10-11 16:51:13 UTC
Whats the highlighting set to? See bottom right corner. Can you disable highlighting by selecting Normal and then check if it affects memory usage?

Also, would it be possible for you to share the file in question?
Comment 2 testc2n14 2025-10-11 23:14:14 UTC
(In reply to Waqar Ahmed from comment #1)
> Whats the highlighting set to? See bottom right corner. Can you disable
> highlighting by selecting Normal and then check if it affects memory usage?
> 
> Also, would it be possible for you to share the file in question?

all settings in kate are set to default, i have not messed with them at all, i am uploading the file to google drive rn but it's going to take atleast an hour to upload
Comment 3 Waqar Ahmed 2025-10-12 11:53:37 UTC
Perhaps zip compress the file, log files become much smaller after compression usually.

1. Can you tell me how many lines are there in the file?
2. Can you rename the file so that it has .txt extension (for e.g., abc.txt) and then open it and see if it affects memory usage?
Comment 4 Bug Janitor Service 2025-10-27 03:47:20 UTC
๐Ÿ›๐Ÿงน โš ๏ธ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 5 Bug Janitor Service 2025-11-11 03:48:18 UTC
๐Ÿ›๐Ÿงน This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.