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raspberrypi / linux

Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/
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5.8.y: swap space doesn't work #3864

Open Titaniumtown opened 3 years ago

Titaniumtown commented 3 years ago

Describe the bug When swapspace is created, then specified in /etc/fstab, on kernel 5.8, free -h shows swap as 0b, but with 5.4.y, it shows it as 16gb (as it should be).

To reproduce Use kernel 5.8, create swap space and add it to fstab, observe swap being 0b when running free -h.

Expected behaviour It should show 16gb of swap when running free -h

Actual behaviour free -h shows 0b of swap when running kernel 5.8

System Model: Raspberry Pi 4 8gb OS: Arch Linux Arm (64 bit tarball that I created) version 6105bb6ab6db9d62a57ce2bb96c527a2cc46a717 kernel: 5.8.5.r936780.g1b7aa2df0963-1

Additional context Swap works on kernel 5.4

nkichukov commented 3 years ago

I am running 5.8.9 here and I have swap. Swap was there also on 5.8.0 and 5.8.2 kernels.

Does your swap appear if you manually enabled it, ie: sudo swapon <swapfile/swapdevice>

Titaniumtown commented 3 years ago

I rolled back the kernel running on it to 5.4, but I'll test that later.