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Bug 1918702 - There's a logic bug here In function startX at pyanaconda/core/util.py
Summary: There's a logic bug here In function startX at pyanaconda/core/util.py
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: anaconda
Version: 8.3
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.0
Assignee: Vladimír Slávik
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-01-21 12:20 UTC by liuxin
Modified: 2021-11-10 00:47 UTC (History)
6 users (show)

Fixed In Version: anaconda-33.16.5.1-1.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1955306 (view as bug list)
Environment:
Last Closed: 2021-11-09 18:42:11 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Logs from 33.16.5.2-1.el8 (993.50 KB, application/x-tar)
2021-06-03 15:42 UTC, Zdenek Veleba 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Github rhinstaller anaconda pull 3141 0 None open Handle correctly too slow X11 start 2021-03-17 14:54:45 UTC
Red Hat Product Errata RHBA-2021:4254 0 None None None 2021-11-09 18:42:34 UTC

Description liuxin 2021-01-21 12:20:41 UTC 
Description of problem:
There's a logic bug here In function startX at pyanaconda/core/util.py
    the program triggers a timeout and executes sigalrm_handler When the Xorg service starts too slowly and exceeds the timeout time, which executes the raise exiterror causing the finally block to be executed.
    The finally block will cancel processing of the SIGUSER1 signal, which will cause the signuser1 sent to Anaconda after the Xorg service is started to fail to process and the program will die


Version-Release number of selected component (if applicable):
anaconda 33.17

How reproducible:
In the function startX add code `time.sleep(0.5)` after the code `signal.alarm(timeout)` and add boot options: inst.xtimeout=1

Steps to Reproduce:
1. add code `time.sleep(0.5)` after the code `signal.alarm(timeout)` in function startX
2.make a new setup iso
3.add boot options: inst.xtimeout=1

Actual results:
X startup failed, falling back to text mode
Pane is dead(signal 10, date)

Expected results:
X startup failed, falling back to text mode
no other failed and i can setup os through text mode

Additional info:
NA
Comment 1 Vladimír Slávik 2021-01-21 15:06:18 UTC 
PR submitted by author to fix the issue - thank you! https://github.com/rhinstaller/anaconda/pull/3107
Comment 2 Jan Stodola 2021-03-17 14:54:46 UTC 
New PR URL: https://github.com/rhinstaller/anaconda/pull/3141
Comment 3 Vladimír Slávik 2021-04-16 13:51:57 UTC 
See https://github.com/rhinstaller/anaconda/pull/3295 which links most of the related developments since last time posted here.
Comment 6 Vladimír Slávik 2021-05-06 18:11:59 UTC 
Last developments in https://github.com/rhinstaller/anaconda/pull/3304
Comment 7 Vladimír Slávik 2021-05-07 12:43:57 UTC 
PR merged.
Comment 8 Vladimír Slávik 2021-05-12 13:35:14 UTC 
Looks like this bug was from the beginning for RHEL 8, although I treated it as for Rawhide. Sorry. That means all links above are upstream only. But from now on, let's keep it for RHEL 8.
Comment 9 Vladimír Slávik 2021-05-12 14:28:59 UTC 
https://github.com/rhinstaller/anaconda/pull/3365
Comment 10 Vladimír Slávik 2021-05-13 16:04:44 UTC 
PR merged.
Comment 11 Zdenek Veleba 2021-06-03 15:41:27 UTC 
Tested with anaconda 33.16.5.2-1.el8

If network is enabled, ip=dhcp on kernel cmdline, it works as expected.
Anaconda informs that X did not start and offers to continue installation via VNC or text mode.

If network is not enabled, anaconda throws exception and user cannot continue with the installation.
See attached logs.
Comment 12 Zdenek Veleba 2021-06-03 15:42:31 UTC 
Created attachment 1788865 [details]
Logs from 33.16.5.2-1.el8
Comment 15 Zdenek Veleba 2021-06-08 11:54:39 UTC 
After discussion and more testing we found that the reproduction steps were causing unrelated issue.

Pre-verified - anaconda 33.16.5.2-1.el8 in RHEL-8.5.0-20210524.t.19
Comment 19 Jan Stodola 2021-06-23 17:22:16 UTC 
anaconda-33.16.5.1-1.el8 is present in compose RHEL-8.5.0-20210622.n.0, moving to VERIFIED.
Comment 21 errata-xmlrpc 2021-11-09 18:42:11 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (anaconda bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4254
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