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App hangs on macOS / Apple Silicon when run under Rosetta #76356

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App hangs on macOS / Apple Silicon when run under Rosetta#76356
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area-VM-coreclr
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Description

@theolivenbaum
theolivenbaum
opened on Sep 29, 2022

Description

We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.

The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.

Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?

Thanks!

Reproduction Steps

Don't have anything yet, but this happens on our macOS app when running on Apple Silicon

Expected behavior

App runs without hanging. Note that this is fine on Intel-based macOS devices.

Actual behavior

App hangs forever and needs to be killed.

Regression?

No response

Known Workarounds

No response

Configuration

Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.

Other information

No response

Metadata

Metadata

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No one assigned

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      , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
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btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
      Skip to content
      App hangs on macOS / Apple Silicon when run under Rosetta #76356
      Closed
      Closed
      App hangs on macOS / Apple Silicon when run under Rosetta#76356
      Labels
      area-VM-coreclr
      Milestone
      Future
      Description
      @theolivenbaum
      theolivenbaum
      opened on Sep 29, 2022
      Description
      We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
      The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
      Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
      Thanks!
      Reproduction Steps
      Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
      Expected behavior
      App runs without hanging. Note that this is fine on Intel-based macOS devices.
      Actual behavior
      App hangs forever and needs to be killed.
      Regression?
      No response
      Known Workarounds
      No response
      Configuration
      Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
      Other information
      No response
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        area-VM-coreclr
        Type
        No type
        Projects
        No projects
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          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
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document.head.appendChild(style);
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} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
          Skip to content
          App hangs on macOS / Apple Silicon when run under Rosetta #76356
          Closed
          Closed
          App hangs on macOS / Apple Silicon when run under Rosetta#76356
          Labels
          area-VM-coreclr
          Milestone
          Future
          Description
          @theolivenbaum
          theolivenbaum
          opened on Sep 29, 2022
          Description
          We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
          The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
          Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
          Thanks!
          Reproduction Steps
          Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
          Expected behavior
          App runs without hanging. Note that this is fine on Intel-based macOS devices.
          Actual behavior
          App hangs forever and needs to be killed.
          Regression?
          No response
          Known Workarounds
          No response
          Configuration
          Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
          Other information
          No response
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            area-VM-coreclr
            Type
            No type
            Projects
            No projects
              Milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
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var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
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if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
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terms.forEach(function(term) {
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span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
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node.parentNode.replaceChild(frag, node);
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} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
              Skip to content
              App hangs on macOS / Apple Silicon when run under Rosetta #76356
              Closed
              Closed
              App hangs on macOS / Apple Silicon when run under Rosetta#76356
              Labels
              area-VM-coreclr
              Milestone
              Future
              Description
              @theolivenbaum
              theolivenbaum
              opened on Sep 29, 2022
              Description
              We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
              The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
              Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
              Thanks!
              Reproduction Steps
              Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
              Expected behavior
              App runs without hanging. Note that this is fine on Intel-based macOS devices.
              Actual behavior
              App hangs forever and needs to be killed.
              Regression?
              No response
              Known Workarounds
              No response
              Configuration
              Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
              Other information
              No response
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                area-VM-coreclr
                Type
                No type
                Projects
                No projects
                  Milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
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mutations.forEach(function(m) {
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if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
                  Skip to content
                  App hangs on macOS / Apple Silicon when run under Rosetta #76356
                  Closed
                  Closed
                  App hangs on macOS / Apple Silicon when run under Rosetta#76356
                  Labels
                  area-VM-coreclr
                  Milestone
                  Future
                  Description
                  @theolivenbaum
                  theolivenbaum
                  opened on Sep 29, 2022
                  Description
                  We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
                  The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
                  Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
                  Thanks!
                  Reproduction Steps
                  Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
                  Expected behavior
                  App runs without hanging. Note that this is fine on Intel-based macOS devices.
                  Actual behavior
                  App hangs forever and needs to be killed.
                  Regression?
                  No response
                  Known Workarounds
                  No response
                  Configuration
                  Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
                  Other information
                  No response
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    area-VM-coreclr
                    Type
                    No type
                    Projects
                    No projects
                      Milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
                      Skip to content
                      App hangs on macOS / Apple Silicon when run under Rosetta #76356
                      Closed
                      Closed
                      App hangs on macOS / Apple Silicon when run under Rosetta#76356
                      Labels
                      area-VM-coreclr
                      Milestone
                      Future
                      Description
                      @theolivenbaum
                      theolivenbaum
                      opened on Sep 29, 2022
                      Description
                      We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
                      The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
                      Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
                      Thanks!
                      Reproduction Steps
                      Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
                      Expected behavior
                      App runs without hanging. Note that this is fine on Intel-based macOS devices.
                      Actual behavior
                      App hangs forever and needs to be killed.
                      Regression?
                      No response
                      Known Workarounds
                      No response
                      Configuration
                      Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
                      Other information
                      No response
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        area-VM-coreclr
                        Type
                        No type
                        Projects
                        No projects
                          Milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
                          Skip to content
                          App hangs on macOS / Apple Silicon when run under Rosetta #76356
                          Closed
                          Closed
                          App hangs on macOS / Apple Silicon when run under Rosetta#76356
                          Labels
                          area-VM-coreclr
                          Milestone
                          Future
                          Description
                          @theolivenbaum
                          theolivenbaum
                          opened on Sep 29, 2022
                          Description
                          We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
                          The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
                          Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
                          Thanks!
                          Reproduction Steps
                          Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
                          Expected behavior
                          App runs without hanging. Note that this is fine on Intel-based macOS devices.
                          Actual behavior
                          App hangs forever and needs to be killed.
                          Regression?
                          No response
                          Known Workarounds
                          No response
                          Configuration
                          Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
                          Other information
                          No response
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            area-VM-coreclr
                            Type
                            No type
                            Projects
                            No projects
                              Milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
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.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
App hangs on macOS / Apple Silicon when run under Rosetta · Issue #76356 · dotnet/runtime · GitHub
                              Skip to content
                              App hangs on macOS / Apple Silicon when run under Rosetta #76356
                              Closed
                              Closed
                              App hangs on macOS / Apple Silicon when run under Rosetta#76356
                              Labels
                              area-VM-coreclr
                              Milestone
                              Future
                              Description
                              @theolivenbaum
                              theolivenbaum
                              opened on Sep 29, 2022
                              Description
                              We're trying to diagnose an issue some of our users are hitting when running our app under Rosetta 2. The issue happens both in net60 and the latest net70 preview.
                              The app just stops responding to any input and hangs forever, sometimes in an idle state, sometimes still using 30% CPU but doing nothing. Logs also stop being emitted, so I'm just assuming the whole process is stuck.
                              Is there any hits or documentation available on how to debug or get a process dump when running a dotnet app under Rosetta?
                              Thanks!
                              Reproduction Steps
                              Don't have anything yet, but this happens on our macOS app when running on Apple Silicon
                              Expected behavior
                              App runs without hanging. Note that this is fine on Intel-based macOS devices.
                              Actual behavior
                              App hangs forever and needs to be killed.
                              Regression?
                              No response
                              Known Workarounds
                              No response
                              Configuration
                              Issue happens on both net60 and net70 latest preview. Running on ARM64 (i.e. Apple Silicon) under Rosetta, latest macOS 12.
                              Other information
                              No response
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                area-VM-coreclr
                                Type
                                No type
                                Projects
                                No projects
                                  Milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions