<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>312888</bug_id>
          
          <creation_ts>2026-04-21 06:33:53 -0700</creation_ts>
          <short_desc>[GTK] REGRESSION: inspector/debugger/async-stack-trace-basic.html is crashing</short_desc>
          <delta_ts>2026-04-22 17:45:46 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>WebKitGTK</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Alicia Boya García">aboya</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>bugs-noreply</cc>
    
    <cc>zimmermann</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2202715</commentid>
    <comment_count>0</comment_count>
    <who name="Alicia Boya García">aboya</who>
    <bug_when>2026-04-21 06:33:53 -0700</bug_when>
    <thetext>STDERR: GLib:ERROR:../../../../../jhbuild/checkout/glib/glib/gmain.c:4049:g_main_context_check_unlocked: assertion failed: (i &lt;= 0 || fds[i - 1].fd &lt; fds[i].fd)

Thread 1 (Thread 0x7f982c14dec0 (LWP 491364)):
#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=&lt;optimized out&gt;) at ./nptl/pthread_kill.c:44
#1  __pthread_kill_internal (signo=6, threadid=&lt;optimized out&gt;) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=&lt;optimized out&gt;, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3  0x00007f983943327e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4  0x00007f98394168ff in __GI_abort () at ./stdlib/abort.c:79
#5  0x00007f98381ee075 in g_assertion_message (domain=domain@entry=0x7f983828b00e &quot;GLib&quot;, file=file@entry=0x7f9838292330 &quot;../../../../../jhbuild/checkout/glib/glib/gmain.c&quot;, line=line@entry=4049, func=func@entry=0x7f983829f030 &lt;__func__.21&gt; &quot;g_main_context_check_unlocked&quot;, message=message@entry=0x5621104b6ee0 &quot;assertion failed: (i &lt;= 0 || fds[i - 1].fd &lt; fds[i].fd)&quot;) at ../../../../../jhbuild/checkout/glib/glib/gtestutils.c:3387
#6  0x00007f9838257a3e in g_assertion_message_expr (domain=domain@entry=0x7f983828b00e &quot;GLib&quot;, file=file@entry=0x7f9838292330 &quot;../../../../../jhbuild/checkout/glib/glib/gmain.c&quot;, line=line@entry=4049, func=func@entry=0x7f983829f030 &lt;__func__.21&gt; &quot;g_main_context_check_unlocked&quot;, expr=expr@entry=0x7f9838292990 &quot;i &lt;= 0 || fds[i - 1].fd &lt; fds[i].fd&quot;) at ../../../../../jhbuild/checkout/glib/glib/gtestutils.c:3413
#7  0x00007f983822a4c8 in g_main_context_check_unlocked (context=context@entry=0x56210ca45ea0, max_priority=max_priority@entry=2147483647, fds=fds@entry=0x7f9820018238, n_fds=n_fds@entry=5) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:4049
#8  0x00007f983822b69e in g_main_context_check (context=0x56210ca45ea0, max_priority=2147483647, fds=0x7f9820018238, n_fds=5) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:3986
#9  0x00007f9837ea5f45 in WTF::RunLoop::runGLibMainLoopIteration(WTF::RunLoop::MayBlock) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1
#10 0x00007f9837ea6232 in WTF::RunLoop::run() () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1
#11 0x00007f983c36e2b6 in int WebKit::AuxiliaryProcessMain&lt;WebKit::WebProcessMainGtk&gt;(int, char**) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4
#12 0x00007f98394181ca in __libc_start_call_main (main=main@entry=0x5620e7e4c7d0 &lt;main&gt;, argc=argc@entry=4, argv=argv@entry=0x7ffd90ec4ba8) at ../sysdeps/nptl/libc_start_call_main.h:58
#13 0x00007f983941828b in __libc_start_main_impl (main=0x5620e7e4c7d0 &lt;main&gt;, argc=4, argv=0x7ffd90ec4ba8, init=&lt;optimized out&gt;, fini=&lt;optimized out&gt;, rtld_fini=&lt;optimized out&gt;, stack_end=0x7ffd90ec4b98) at ../csu/libc-start.c:360
#14 0x00005620e7e4c705 in _start ()


311633@main                   NOERROR
[311634@main-311635@main]     UNKNOWN
311636@main                   NOERROR
[311637@main-311640@main]     UNKNOWN
311641@main                   CRASH (Expected: PASS)
311642@main                   NOERROR
[311643@main-311646@main]     UNKNOWN
311647@main                   NOERROR
[311648@main-311661@main]     UNKNOWN
311662@main                   CRASH (Expected: PASS)

The regression is recent, probably around 311637@main and 311641@main, but since it&apos;s somewhat flaky, it&apos;s not immediately clear.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2202716</commentid>
    <comment_count>1</comment_count>
    <who name="Alicia Boya García">aboya</who>
    <bug_when>2026-04-21 06:34:48 -0700</bug_when>
    <thetext>The crash has only been seen GTK so far.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2203473</commentid>
    <comment_count>2</comment_count>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2026-04-22 17:45:46 -0700</bug_when>
    <thetext>*** Bug 313041 has been marked as a duplicate of this bug. ***</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>