Hi,
The change for 1394 OHCI driver, aimed at suppressing the unexpected
system reboot in AMD Ryzen machine[1], has been merged into Linux kernel
v6.7[2]. It has also been applied to the following releases of stable and
longterm kernels.
* 6.6.11[3]
* 6.1.72[4]
* 5.15.147[5]
* 5.10.208[6]
* 5.4.267[7]
* 4.19.305[8]
* 4.14.336[9]
Once the downstream distribution project provides the corresponding kernel
packages, you should no longer encounter the unexpected system reboot.
Note that the following combination of hardware is not necessarily suitable,
depending on your use case:
* Any type of AMD Ryzen machine
* 1394 OHCI hardware consists of:
* Asmedia ASM1083/1085
* VIA VT6306/6307/6308
When working with time-aware protocol, such as audio sample processing, it
is advisable to avoid the combination. The change accompanies a functional
limitation that the software stack does not provides precise hardware time
in this case.
If you choose to continue using AMD Ryzen machine, the recommendation is
to replace the 1394 OHCI hardware with another one. Conversely, if you
choose to continue using the 1394 OHCI hardware, the recommendation is to
use the machine provided by vendors other than AMD.
Thanks for your report and long patience.
[1] https://git.kernel.org/torvalds/linux/c/ac9184fbb847
[2]
https://lore.kernel.org/lkml/CAHk-=widprp4xohucsde7e16yzjlyjwra-dk0he1mnfpmf6...@mail.gmail.com/
[3] https://lore.kernel.org/lkml/2024011058-sheep-thrower-d2f8@gregkh/
[4] https://lore.kernel.org/lkml/2024011052-unsightly-bronze-e628@gregkh/
[5] https://lore.kernel.org/lkml/2024011541-defective-scuff-c55e@gregkh/
[6] https://lore.kernel.org/lkml/2024011532-lustiness-hybrid-fc72@gregkh/
[7] https://lore.kernel.org/lkml/2024011519-mating-tag-1f62@gregkh/
[8] https://lore.kernel.org/lkml/2024011508-shakiness-resonant-f15e@gregkh/
[9] https://lore.kernel.org/lkml/2024011046-ecology-tiptoeing-ce50@gregkh/
Thanks
Takashi Sakamoto
** Changed in: linux (Ubuntu)
Status: New => Fix Committed
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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:
Fix Committed
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...
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