starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-02-04 05:35:20 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

PSEUDOCONSOLE_INHERIT_CURSOR sends DSR CPR to terminal, if the process is closed before a response is received, conhost will max out a core #15192

New Issue
Open
opened 2026-01-31 04:31:05 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 04:31:05 +00:00
Owner
Copy Link

Originally created by @Tyriar on GitHub (Sep 13, 2021).

Windows Terminal version (or Windows build number)

19042.1165

Other Software

VS Code/node-pty based on main

Steps to reproduce

  1. Use PSEUDOCONSOLE_INHERIT_CURSOR to when using conpty
  2. Don't respond to CSI 6 n in terminal
  3. Close the terminal program

Expected Behavior

Conpty should handle this more gracefully, perhaps a timeout should be used when the CPR response isn't received and continue on ignoring PSEUDOCONSOLE_INHERIT_CURSOR ?

Actual Behavior

The conhost process maxes out a CPU core

FWIW I worked around the issue by making sure a terminal is available to respond to the sequence on Windows (I'm in the process of building terminal buffer restoration/process revive after restarts).

Originally created by @Tyriar on GitHub (Sep 13, 2021). ### Windows Terminal version (or Windows build number) 19042.1165 ### Other Software VS Code/node-pty based on `main` ### Steps to reproduce 1. Use PSEUDOCONSOLE_INHERIT_CURSOR to when using conpty 2. Don't respond to CSI 6 n in terminal 3. Close the terminal program ### Expected Behavior Conpty should handle this more gracefully, perhaps a timeout should be used when the CPR response isn't received and continue on ignoring PSEUDOCONSOLE_INHERIT_CURSOR ? ### Actual Behavior The conhost process maxes out a CPU core --- FWIW I worked around the issue by making sure a terminal is available to respond to the sequence on Windows (I'm in the process of building terminal buffer restoration/process revive after restarts).
claunia added the Issue-BugIn-PRNeeds-Tag-FixArea-ServerProduct-ConptyPriority-1 labels 2026-01-31 04:31:06 +00:00
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
⛺ Reserved
A11yCO
A11yMAS
A11ySev1
A11ySev2
A11ySev3
A11yTTValidated
A11yUsable
A11yVoiceAccess
A11yWCAG
Area-Accessibility
Area-AtlasEngine
Area-AzureShell
Area-Build
Area-Build
Area-Chat
Area-CmdPal
Area-CodeHealth
Area-Commandline
Area-CookedRead
Area-DefApp
Area-Extensibility
Area-Fonts
Area-GroupPolicy
Area-i18n
Area-Input
Area-Interaction
Area-Interop
Area-Localization
Area-Output
Area-Performance
Area-Portable
Area-Quality
Area-Remoting
Area-Rendering
Area-Schema
Area-Server
Area-Settings
Area-SettingsUI
Area-ShellExtension
Area-ShellExtension
Area-ShellExtension
Area-Suggestions
Area-Suggestions
Area-TerminalConnection
Area-TerminalControl
Area-Theming
Area-UserInterface
Area-VT
Area-Windowing
Area-WPFControl
AutoMerge
Blocking-Ingestion
Culprit-Centennial
Culprit-WinUI
Disability-All
Disability-Blind
Disability-LowVision
Disability-Mobility
External-Blocked-WinUI3
Fixed
Gathering-Data
good first issue
HCL-E+D
HCL-WindowsTerminal
Help Wanted
Impact-Compatibility
Impact-Compliance
Impact-Correctness
Impact-Visual
In-PR
InclusionBacklog
InclusionBacklog-Windows TerminalWin32
InclusionCommitted-202206
Issue-Bug
Issue-Docs
Issue-Feature
Issue-Feature
Issue-Question
Issue-Samples
Issue-Scenario
Issue-Task
Needs-Attention
Needs-Author-Feedback
Needs-Bisect
Needs-Discussion
Needs-Repro
Needs-Tag-Fix
Needs-Tag-Fix
Needs-Triage
No-Recent-Activity
Priority-0
Priority-1
Priority-2
Priority-3
Product-Cmd.exe
Product-Colortool
Product-Colortool
Product-Colortool
Product-Conhost
Product-Conpty
Product-Meta
Product-Powershell
Product-Terminal
Product-WSL
pull-request
Mirrored from GitHub Pull Request
 Resolution-Answered
Resolution-By-Design
Resolution-Duplicate
Resolution-External
Resolution-Fix-Available
Resolution-Fix-Committed
Resolution-No-Repro
Resolution-Won't-Fix
Severity-Blocking
Severity-Crash
Severity-DataLoss
spam
this-will-be-a-breaking-change
Tracking-External
WindowsTerminal_Win32
Work-Item
zAskModeBug
zInbox-Bug
No Label Area-Server In-PR Issue-Bug Needs-Tag-Fix Priority-1 Product-Conpty
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
claunia
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/terminal#15192
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?