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FS#4176 - Crashing or rebooting early in boot on x86_64 #9157

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openwrt-bot opened this issue Dec 4, 2021 · 0 comments
Open

FS#4176 - Crashing or rebooting early in boot on x86_64 #9157

openwrt-bot opened this issue Dec 4, 2021 · 0 comments
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flyspray kernel release/21.02

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@openwrt-bot openwrt-bot commented Dec 4, 2021

ShadowFlare:

I hadn't updated my VM in a while, so sorry for finding this so late.

I have a VM on Hyper-V Server 2019 that had been running OpenWrt 21.02 RC3 on x86_64 with EFI and using squashfs as the rootfs type in a generation 2 (EFI-supporting) Hyper-V VM, and recently I tried updating to a build of 21.02.1. Very early in boot (after Grub, while OpenWrt is booting) it just reboots, and keeps doing this repeatedly. I tried to watch for any error message flashing on the screen just before the reboot, but I couldn't spot anything, and also the failsafe option from the boot menu doesn't help.

I've tested this with a fresh clean install without my configs on a new virtual hard drive, and the problem still occurs. Other than my own build of 21.02.1, I've found it happens on the official builds, too. I checkpointed the VM and started testing official builds, finding that it started with 21.02 release (RC4 was fine) and it continues through to 21.02.1 and also a snapshot build from master that I tried.

I skimmed through the few commits between RC4 and 21.02 release and found this commit affecting x86_64:

[[https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=750b966866b098a2e9a8693d313111ed1e892ab6]]

After reverting the change in my local tree, rebuilding 21.02.1, and installing the image on my VM, it boots successfully with no problems.

@aparcar aparcar added release/21.02 kernel labels Feb 22, 2022
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