[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

[release/8.0] [mono][interp] Keep delegate alive during invocation - #102159

Merged
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832
May 29, 2024
Merged

[release/8.0] [mono][interp] Keep delegate alive during invocation#102159
BrzVlad merged 1 commit into
dotnet:release/8.0-stagingfrom
BrzVlad:backport-100832

Conversation

@BrzVlad

Copy link
Copy Markdown
Member

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.

Backport of #100832 to release/8.0-staging

Customer Impact

Invoking a delegate for a dynamic method was potentially broken in interpreter because the method could end up being collected during execution. While this bug shouldn't be a regression from .net7, it started showing up relatively recently in various test suites, maybe caused by upgrades to toolchain/system. #101831, likely #101988

Testing

Over one month of testing on our CI without any problems

Risk

Low

When invoking a delegate, we were overwritting the stack slot containing the delegate object reference. In the case of invoking a delegate for a dynamic method, we were running into issues when the delegate object is collected while the method is executed because the method code is also discarded.
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @BrzVlad, @kotlarmilos
See info in area-owners.md if you want to be subscribed.

@BrzVlad
BrzVlad requested a review from vitek-karasMay 13, 2024 14:50
@BrzVladBrzVlad added this to the 8.0.x milestone May 13, 2024
@BrzVladBrzVlad changed the title [release/8.0-staging] [mono][interp] Keep delegate alive during invocation[release/8.0] [mono][interp] Keep delegate alive during invocationMay 13, 2024
@lambdageek
lambdageek requested a review from kgMay 13, 2024 15:49
kg
kg approved these changes May 13, 2024
@lewinglewing added the Servicing-consider Issue for next servicing release review label May 13, 2024
@lewinglewing added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels May 22, 2024
@BrzVlad
BrzVlad merged commit 7b08fa8 into dotnet:release/8.0-stagingMay 29, 2024
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 28, 2024
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@BrzVlad@kg@lewing