[Bug 2064827] Re: [5.19.0-1030-lowlatency] BUG: kernel NULL pointer dereference, address: 00000000000006b1
Hi Yes, I'm using kernel 5 version because kernel 6 was braking for me, I can retry it. I'm using lowlatency because this machine does some streaming and storing streams, and I noticed tiny better performance, but that's maybe my imagination. I don't do any CPU pinning or realtime processes. This OS was working for weeks on previous motherboard, I updated motherboard to newer so I can use DDR5, and problems with kernel appeared. The same CPU, the same OS. I run memtest for few hours and there were no problems. Naively I was thinking that DDR5 will decrease power usage because the machine does a lot of data moving, and that done faster will be better, but it did nothing :) I will update the kernel then, and if it starts breaking more, I suppose I would need to create more bugs :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064827 Title: [5.19.0-1030-lowlatency] BUG: kernel NULL pointer dereference, address: 06b1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2064827/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2064827] Re: [5.19.0-1030-lowlatency] BUG: kernel NULL pointer dereference, address: 00000000000006b1
Hi Sophi, The 5.19 HWE kernel for Jammy is no longer supported. Its support period was for the lifetime of the 22.10 Kinetic Kudu release, which is now end of life. Can you upgrade to a supported kernel, e.g. the latest 5.15 Jammy kernel or the current 6.5 HWE kernel, and retry? Is there any reason you are using the -lowlatency variant? $ sudo apt install linux-lowlatency-hwe-22.04 $ sudo reboot $ uname -rv 6.5.0-28-lowlatency #29.1~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr 4 17:17:55 UTC or $ sudo apt install linux-generic-hwe-22.04 for the -generic variant. Thanks, Matthew -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064827 Title: [5.19.0-1030-lowlatency] BUG: kernel NULL pointer dereference, address: 06b1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2064827/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
