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Bug 1603561

Summary: laggy rendering and sometimes gnome-shell crash when moving large window
Product: Red Hat Enterprise Linux 7 Reporter: Tomas Hudziec <thudziec>
Component: gnome-shellAssignee: Florian Müllner <fmuellner>
Status: CLOSED WONTFIX QA Contact: Desktop QE <desktop-qa-list>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 7.6CC: tpelka
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Last Closed: 2021-02-15 07:40:46 UTC Type: Bug
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Tomas Hudziec 2018-07-19 15:43:53 UTC
Created attachment 1460859 [details]
example postscript file

Description of problem:
When moving large window beyond approx. 16000x800 size, rendering is laggy, part of window panel is black and sometimes gnome-shell crash occurs.

Version-Release number of selected component (if applicable):
gnome-shell-3.28.2-1.el7.x86_64

How reproducible:
laggy rendering always
gnome-shell crash sometimes

Steps to Reproduce:
1. open Ghostscript previewer window: $ gs test.ps
   or just: $ gs
2. resize it to beyond 16000x800 size
3. move the window

Actual results:
When resizing beyond approx. 16000 width size, window panel beyond that size become black and following messages are printed into systemd journal:
gnome-shell[8865]: Failed to allocate mask texture: Failed to create texture 2d due to size/format constraints

When moving window, rendering is laggy and sometimes gnome-shell crash occurs and it is restarted.

For the first time, gnome-shell was killed by SIGABRT:
org.gnome.Shell.desktop[7934]: [xcb] Unknown sequence number while processing queue
org.gnome.Shell.desktop[7934]: [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
org.gnome.Shell.desktop[7934]: [xcb] Aborting, sorry about that.
org.gnome.Shell.desktop[7934]: gnome-shell: xcb_io.c:259: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
org.gnome.Shell.desktop[7934]: == Stack trace for context 0x277d0a0 ==
abrt-hook-ccpp[8323]: Process 7934 (gnome-shell) of user 1000 killed by SIGABRT - dumping core

For the second time, gnome-shell was killed by SIGSEGV:
kernel: gnome-shell[8329]: segfault at 7f0ecd3cb000 ip 00007f0f545b66aa sp 00007ffdfae7f830 error 4 in i965_dri.so[7f0f544b0000+91f000]
abrt-hook-ccpp[8862]: Process 8329 (gnome-shell) of user 1000 killed by SIGSEGV - dumping core

For next approx. 3 times crash did not happen.

Expected results:
No crash should happen. Rendering should be smooth and probably some constraint to window size should be set.

Comment 4 RHEL Program Management 2021-02-15 07:40:46 UTC
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.