<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> Hi Paolo,</div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">Sorry for the delay. <span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); display: inline !important;"> I disabled UBSAN for all my builds as it's just not sustainable to hunt for issues in hundreds of possible modules and HW configurations.</span></span></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"><br> </span></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">Having that said, I can certainly test your patch and it would be easier for me if you can provide the link (or a patch file) to it so I can rebuild the kernel for my environment and re-test. </span><br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"><br> </span></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">--Andrew</span></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </div> <div id="appendonsend"></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Paolo Pisati <paolo.pisati@canonical.com><br> <b>Sent:</b> Wednesday, September 8, 2021 5:29 AM<br> <b>To:</b> Andrew Moes <mail@andrii.me><br> <b>Cc:</b> kernel-team@lists.ubuntu.com <kernel-team@lists.ubuntu.com><br> <b>Subject:</b> Re: PROBLEM: UBSAN enabled in 5.14 and 5.13.14 kernels leads to kernel crash</font> <div> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">On Sat, Sep 04, 2021 at 08:20:31PM +0000, Andrew Moes wrote:<br> > Hi,<br> > <br> > Problematic<br> > change: [1]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ubuntu.com%2Farchives%2Fkernel-team%2F2021-August%2F12&data=04%7C01%7C%7C5454f3d9dadf45fc584708d972ab3bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637666902032503492%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=VajNgVAlQ3Elgbi1aVeKNw7NsTdxe1NzHmZZd%2FaOyZA%3D&reserved=0<br> > 3425.html<br> > <br> > Affected kernels: 5.14, 5.14.1 and 5.13.14<br> > <br> > Last working kernel: 5.13.13<br> > <br> > Problem statement:<br> > <br> > The server with NVDIMMs won't boot throwing lots of misleading errors.<br> <br> Hi Andrew,<br> <br> your issue looks very similar to LP1942215[1]: can you install the test kernel<br> provided in #12 and follow up with your results there?<br> <br> Thank you.<br> <br> 1: <a href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.launchpad.net%2Fubuntu%2F%2Bsource%2Flinux%2F%2Bbug%2F1942215&data=04%7C01%7C%7C5454f3d9dadf45fc584708d972ab3bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637666902032503492%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Rw4o%2B5mVamzPGD%2F0GBSnD37XdKIvBMxgBtRhUTVypgc%3D&reserved=0"> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.launchpad.net%2Fubuntu%2F%2Bsource%2Flinux%2F%2Bbug%2F1942215&data=04%7C01%7C%7C5454f3d9dadf45fc584708d972ab3bdf%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637666902032503492%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Rw4o%2B5mVamzPGD%2F0GBSnD37XdKIvBMxgBtRhUTVypgc%3D&reserved=0</a><br> -- <br> bye,<br> p.<br> </div> </span></font></div> </body> </html>