<div style="line-height: 1.43; font-family: -apple-system, system-ui; font-size: 14px; color: rgb(0, 0, 0);">Hi Goetz,</div><div style="line-height: 1.43; font-family: -apple-system, system-ui; font-size: 14px; color: rgb(0, 0, 0);"><br /></div><div style="line-height: 1.43; font-family: -apple-system, system-ui; font-size: 14px; color: rgb(0, 0, 0);">Thanks for your reply.</div><div style="line-height: 1.43; font-family: -apple-system, system-ui; font-size: 14px; color: rgb(0, 0, 0);"><br /></div><div style="line-height: 1.43; font-family: -apple-system, system-ui; font-size: 14px; color: rgb(0, 0, 0);"><u><a href="https://bugs.openjdk.org/browse/JDK-8371913" target="_blank" style="text-decoration: underline;">8371913</a></u> (SIGSEGV in ZBarrierSet::AccessBarrier during virtual thread status query) is the original issue we experienced, which was marked as a duplicate of the mentioned <u><a href="https://bugs.openjdk.org/browse/JDK-8364343" target="_blank" style="text-decoration: underline;">8364343</a></u>. Fixing it would be good enough from our perspective.</div><div style="line-height: 1.43; font-family: -apple-system, system-ui; font-size: 14px; color: rgb(0, 0, 0);"><br /></div><p style="text-align: left; text-indent: 0px; line-height: 1.43; margin: 0cm;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">Sincerely Yours,</span></p><p style="text-align: left; text-indent: 0px; line-height: 1.43; margin: 0cm;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">Kent Dong</span></p><div style="line-height: 1.43;"><br /></div><article style="line-height:1.43"><div style="display:flex;align-items:center;padding-top:8px" contenteditable="false">
<div style="color:#959DA6;font-size:12px;line-height:30px">原始邮件</div>
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</div><table data-uneditable="true" style="line-height: 20px; border-radius: 6px; background-color: rgba(20, 46, 77, 0.05); margin: 0px; width: 100%;"><tbody><tr><td style="line-height: 20px; padding: 8px;"><div style="line-height: 20px; font-size: 12px;"><span style="color: rgb(92, 97, 102);">发件人：</span><span style="color: rgb(0, 0, 0);">Lindenmaier, Goetz</span> <span style="color: rgb(149, 157, 166);"><goetz.lindenmaier@sap.com></span></div><div style="line-height: 20px; font-size: 12px;"><span style="color: rgb(92, 97, 102);">发件时间：</span><span style="color: rgb(0, 0, 0);">2026年1月27日 22:49</span></div><div style="line-height: 20px; font-size: 12px;"><span style="color: rgb(92, 97, 102);">收件人：</span><span style="color: rgb(0, 0, 0);">Kent Dong</span> <span style="color: rgb(149, 157, 166);"><ch3cho@qq.com>, </span><span style="color: rgb(0, 0, 0);">jdk-updates-dev</span> <span style="color: rgb(149, 157, 166);"><jdk-updates-dev@openjdk.org></span></div><div style="line-height: 20px; font-size: 12px;"><span style="color: rgb(92, 97, 102);">主题：</span><span style="color: rgb(0, 0, 0);">RE: About backporting 8364343 fix to jdk25u</span></div></td></tr></tbody></table><div><br /></div><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-size: 11pt;">Hi Kent,</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-size: 11pt;"> </span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-size: 11pt;">This is a huge change. Backporting it is not trivial and will impose quite a risk.</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-size: 11pt;">It already caused two follow-up issues.</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-size: 11pt;">Are you sure the whole change is needed?</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;">With a better description of your problem maybe we</p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;">can identify a smaller, more directed fix for the issue?</p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"> </p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;">Best regards,</p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"> Goetz.</p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"> </p><div style="padding: 0cm 0cm 0cm 4pt; border-left: 1.5pt solid blue;"><div style="padding: 3pt 0cm 0cm; border-top: 1pt solid rgb(225, 225, 225);"><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: Calibri, sans-serif; font-size: 11pt;"><b>From:</b> jdk-updates-dev <jdk-updates-dev-retn@openjdk.org>
<b>On Behalf Of </b>Kent Dong<br />
<b>Sent:</b> Tuesday, January 27, 2026 3:42 AM<br />
<b>To:</b> jdk-updates-dev <jdk-updates-dev@openjdk.org><br />
<b>Subject:</b> About backporting 8364343 fix to jdk25u</span></p></div><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"> </p><table align="left" border="0" cellspacing="0" cellpadding="0" style="width: 100%; box-sizing: border-box; border-collapse: collapse; border-spacing: 0px;"><tbody><tr><td style="background-color: rgb(166, 166, 166); padding: 5.25pt 1.5pt; width: 0.3pt;"></td><td style="direction: ltr; text-indent: revert; line-height: revert; white-space: revert; border-width: revert; border-style: revert; border-color: revert; background-color: revert; padding: revert; word-break: revert; color: revert; width: revert; height: revert;"><p style="direction: ltr; text-indent: revert; line-height: revert; white-space: revert; margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="letter-spacing: revert; font-family: "Segoe UI", sans-serif; font-size: 9pt; color: rgb(33, 33, 33);">Some people who received this message don't often get email from
</span><span style="letter-spacing: revert; font-family: "Segoe UI", sans-serif; font-size: 9pt; color: blue;"><u><a href="mailto:ch3cho@qq.com" style="text-decoration: underline;color: blue; margin-top: 0px; margin-bottom: 0px;">ch3cho@qq.com</a></u></span><span style="letter-spacing: revert; font-family: "Segoe UI", sans-serif; font-size: 9pt; color: rgb(33, 33, 33);">. </span><span style="letter-spacing: revert; font-family: "Segoe UI", sans-serif; font-size: 9pt; color: blue;"><u><a href="https://aka.ms/LearnAboutSenderIdentification" style="text-decoration: underline;color: blue; margin-top: 0px; margin-bottom: 0px;">
Learn why this is important</a></u></span></p></td><td style="direction: ltr; text-indent: revert; line-height: revert; white-space: revert; border-width: revert; border-style: revert; border-color: revert; background-color: revert; padding: revert; word-break: revert; color: revert; width: revert; height: revert;"></td></tr></tbody></table><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">Dear guys,</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;"> </span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">We encountered a JVM crash with SEGV issue related to the bug 8364343 "Virtual Thread transition management needs to be independent of JVM TI" (</span><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: blue;"><u><a href="https://bugs.openjdk.org/browse/JDK-8364343" style="text-decoration: underline;color: blue; margin-top: 0px; margin-bottom: 0px;">https://bugs.openjdk.org/browse/JDK-8364343</a></u></span><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">) when
using OpenJDK 25.0.1. However, the bug is fixed in 26 and doesn't have the "jdk25u-fix-request" label on it. We wonder whether the patch would be backported to jdk25u project or we would have to use the non-LTS version 26 to work it around. Thanks.</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;"> </span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">Sincerely Yours,</span></p><p style="margin: 0cm; font-family: Aptos, sans-serif; font-size: 12pt;"><span style="font-family: "system-ui", serif; font-size: 10.5pt; color: black;">Kent Dong</span></p></div></article><div style="line-height: 1.43;"><br /></div>