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<!DOCTYPE bugzilla SYSTEM "https://bugzilla.yoctoproject.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.6"
          urlbase="https://bugzilla.yoctoproject.org/"
          
          maintainer="it-coreprojects-helpdesk@linuxfoundation.org"
>

    <bug>
          <bug_id>16045</bug_id>
          
          <creation_ts>2025-10-29 04:50:12 +0000</creation_ts>
          <short_desc>Intermittent error on qemuarm: failed to find screen to remove</short_desc>
          <delta_ts>2026-06-11 15:16:08 +0000</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>7</classification_id>
          <classification>Build System, Metadata &amp; Runtime</classification>
          <product>OE-Core</product>
          <component>core</component>
          <version>unspecified</version>
          <rep_platform>ARM</rep_platform>
          <op_sys>Multiple</op_sys>
          <bug_status>ACCEPTED</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>Medium+</priority>
          <bug_severity>normal</bug_severity>
          <target_milestone>6.1 M2</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Chen Qi">Qi.Chen</reporter>
          <assigned_to name="Ross Burton">ross.burton</assigned_to>
          <cc>meta.mr.watcher</cc>
    
    <cc>meta.watcher</cc>
    
    <cc>randy.macleod</cc>
    
    <cc>richard.purdie</cc>
    
    <cc>ross.burton</cc>
    
    <cc>tim.orling</cc>
          
          
          <cf_os>---</cf_os>
          <cf_regression_type>---</cf_regression_type>
          
          <cf_docchange>No (bug/feature does not impact docs)</cf_docchange>

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>103125</commentid>
    <comment_count>0</comment_count>
    <who name="Chen Qi">Qi.Chen</who>
    <bug_when>2025-10-29 04:50:12 +0000</bug_when>
    <thetext>With systemd 258, there&apos;s an intermittent error on qemuarm + core-image-sato at boot:
failed to find screen to remove

I bisected systemd repo and located the following commit:
https://github.com/systemd/systemd/commit/0ba9d06963ecb848e71951ed5e9f6f6f03b80b06
&quot;&quot;&quot;
udev: use sd_notify to communicate between worker and manager processes

Let&apos;s replace home-grown notification from worker to manager process
with sd_notify.
&quot;&quot;&quot;

Looking at the commit log, it does look like a change that could introduce such intermittent error. As the error is likely caused by some race condition.

However, that commit cannot be reverted, not only because there are a bunch of changes based on this one, but also because the change look like a reasonable one. Besides, it&apos;s possible that the real fix need to be in xserver-xorg.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>103151</commentid>
    <comment_count>1</comment_count>
    <who name="Tim Orling">tim.orling</who>
    <bug_when>2025-10-30 14:45:32 +0000</bug_when>
    <thetext>This is something that needs to be resolved for the systemd upgrade.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>103159</commentid>
    <comment_count>2</comment_count>
    <who name="Chen Qi">Qi.Chen</who>
    <bug_when>2025-10-31 02:52:08 +0000</bug_when>
    <thetext>(In reply to Tim Orling from comment #1)
&gt; This is something that needs to be resolved for the systemd upgrade.

Is there someone familiar with xserver? I think the final fix is likely to be in xserver instead of systemd.

I&apos;ve put a workaround in the patchset V4. I don&apos;t think this is a serious problem that should block systemd upgrade.

Anyway, if there&apos;s someone familiar with xserver, please take this issue. That would be really appreciated. Otherwise, I&apos;ll take care of it only when there is some real runtime issue, e.g., no desktop or something like that.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>103160</commentid>
    <comment_count>3</comment_count>
    <who name="Chen Qi">Qi.Chen</who>
    <bug_when>2025-10-31 05:32:41 +0000</bug_when>
    <thetext>I spent some time looking into this issue again. I think there might be a better solution than the current workaround.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>103161</commentid>
    <comment_count>4</comment_count>
    <who name="Chen Qi">Qi.Chen</who>
    <bug_when>2025-10-31 06:12:42 +0000</bug_when>
    <thetext>Patch: https://lists.openembedded.org/g/openembedded-core/message/225530</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>103520</commentid>
    <comment_count>5</comment_count>
    <who name="Ross Burton">ross.burton</who>
    <bug_when>2025-12-11 10:38:45 +0000</bug_when>
    <thetext>We&apos;re merging that patch but I&apos;m not entirely convinced the dependency is the optimal one, so please keep this bug open.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>104881</commentid>
    <comment_count>6</comment_count>
    <who name="Randy MacLeod">randy.macleod</who>
    <bug_when>2026-03-31 17:47:26 +0000</bug_when>
    <thetext>Bump to M4.
Ross, do you have a better approach in mind now?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>105721</commentid>
    <comment_count>7</comment_count>
    <who name="Randy MacLeod">randy.macleod</who>
    <bug_when>2026-06-04 15:26:54 +0000</bug_when>
    <thetext>Close or more optimal patch incoming ?</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>