Hi Beyil, > I do have an old system (Phenom 1090T CPU) on a motherboard that has a > 1394a controller built in that the 6.5.0-10 kernel works properly on...
Indeed. I also own AMD 880G chipset machine with AMD Sempron 145 CPU. It works well even if using the issued version of kernel. Furthermore, VIA VT6307 card without ASM1083 also works well in the machine. > would some sort of system report from that machine help in tracking down > the issue? or even a report from the system with the issue with an > earlier kernel (6.2.0-36) with the card installed?? I know the phenom > is a pre-ryzen so it may be totally missing a CPU command structure that > is possibly effected, and the Lunar kernel which isn't effected may also > be missing something even though the rest of the system is with the up > to date 23.10 build.. would be interesting if somehow could run a 6.5 kernel under the 6.2 kernel to get a log of some sort. Thanks for your suggestion, while the problem occurs due to operations which is not so special, at least, it is not unique instructions supported by AMD Ryzen CPU. The cause is to access to registers by the way of standard PCI express way in some situations. > I have VirtualBox installed but that provides its own "box" and doesn't > really use the current hardware... In the case that we utilize PCI passthrough to bind the issued 1394 OHCI card to guest system, I note that the guest system can bring the system reboot to host system, if the guest system run with v6.5 kernel or later. > also my motherboard has 2 PCIe slots, one connected directly to the > CPU and another connected through the B550 chipset the reboot loop > happens regardless of which slot is used. I mainly use the one through > the B550 chipset to not restrict airflow into the GPU. Indeed. I also experienced that changing PCIe slot is helpless to solve the issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2043905 Title: VT6307 IEEE1394 card causes reboot loop Status in Linux: In Progress Status in linux package in Ubuntu: New Bug description: used the live USB for Kubuntu and UbuntuStudio 23.10 as well as upgraded to Mantic 6.5.0-10-generic from a Lunar 6.2.0-36 that works... all of the 6.5.0 64 bit kernel versions do a reboot loop prior to the splash screen display. Processor is an AMD Ryzen 5600X, MSI MPG B550 GAMING PLUS Motherboard with 64 gig 3200 ddr4 ram. AMD Radeon RX6600 graphics... latest BIOS firmware is installed, "fwupdmrg refresh --force && fwupdmrg update" in root terminal reports no available updates. in the advanced options of grub I can boot into mantic with the lunar 6.2.0-36 kernel. Cell phone video capture of the bad boot included... Further testing found that a Mantic beta July 3rd build will boot (6.3 kernel) booting to the current live Kubuntu USB with the 6.5.0-9 kernel and removing hardware 1 piece at a time then replacing if the loop occurred found that as soon as a VT6307 PCIe card is removed the 6.5.0-9 and 6.5.0-10 kernels will boot properly. as soon as the card is reinstalled the panic reboot loop starts up again... If there was a log generated from the loop I have been unable to find one in the /var/log directory... I have been unable to get kdump to work... To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/2043905/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
