<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto">Nice, gonna check whether it happens in my case. Thanks for your report, I'll let you know if i need anything more from you.<br><br>Maria</div><br><br><div class="gmail_quote"><div dir="auto">On 20 October 2024 23:25:46 GMT-04:00, benli ye <danielbenliye@gmail.com> wrote:</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div>Hi!</div><div><br></div><div>Yes, you are right. Only one thing that I need to correct is that address which is repeated added and deleted is not the next hop address, it’s just a normal address on the interface.</div><div>I will try to make it reproduce easily.</div><div><br></div><div>Thanks,</div><div>Daniel </div><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Oct 18, 2024, at 21:03, Maria Matějka <mq@jmq.cz> wrote:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Hi!</p><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">On Fri, Oct 18, 2024 at 08:50:18PM +0800, benli ye wrote:</p><blockquote style="margin: 0.5em; padding-left: 0.5em; border-left-width: 2px; border-left-style: solid; border-left-color: rgb(230, 230, 230); color: rgb(68, 68, 68); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><p style="margin: 1em 0px;">Thanks for your response. I have reproduced this issue in our test environment. However, it may not be easy to reproduce again.</p><p style="margin: 1em 0px;">Our bird conf example: (image) I have make a shell script to add and remove an IP address of an interface repeatedly. Somehow, I get a 100% cpu issue for bird.</p></blockquote><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">So basically, before we dive into it.</p><ul style="padding-left: 1.7em; margin-top: 1em; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><li>a device and kernel protocol</li><li>a static protocol with lots of multipath routes</li><li>repeatedly adding and deleting one of the nexthop addresses at the interface</li><li>everything else seems irrelevant</li></ul><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Do I understand that correctly?</p><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">The reason why I’m asking – we need to catch the bug way earlier than when it hangs, as the hang is a symptom. The direct cause is somewhere else and it’s hard to find where without an actual reproducer.</p><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Thanks,<br>Maria</p><p style="margin: 1em 0px; caret-color: rgb(0, 0, 0); font-family: serif; font-size: 10.8px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">–<br>Maria Matejka (she/her) |<span class="Apple-converted-space"> </span><a href="https://maria.jmq.cz/" style="">https://maria.jmq.cz/</a></p></div></blockquote></div><br></blockquote></div><div dir="auto"><div class='k9mail-signature'>-- <br>Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.</div></div></body></html>