Re: recent head having significantly less "avail memory"
Date: Mon, 13 Sep 2021 22:12:33 UTC
On Mon, Sep 13, 2021 at 10:07:46PM +0200, Guido Falsi wrote: > On 13/09/21 19:08, Konstantin Belousov wrote: > > On Mon, Sep 13, 2021 at 02:59:25PM +0200, Guido Falsi via freebsd-current wrote: > > > Hi, > > > > > > I updated head recently and today I noticed a difference which looks wrong. > > > > > > At boodt the new head shows signifcantly less avail memory than before, > > > around 3 GiB less. > > > > > > I moved from commit 71fbc6faed6  where I got: > > > > > > Aug 28 22:03:03 marvin kernel: real memory = 17179869184 (16384 MB) > > > Aug 28 22:03:03 marvin kernel: avail memory = 16590352384 (15821 MB) > > > > > > to commit 7955efd574b  where I get: > > > > > > Sep 13 10:44:40 marvin kernel: real memory = 17179869184 (16384 MB) > > > Sep 13 10:44:40 marvin kernel: avail memory = 13298876416 (12682 MB) > > > > > > I'm seeing this on multiple machines. > > > > > > Unluckily bisecting and trying an older loader.efi in sseparate tests did > > > not give me any more insight. > > > > > > The recent changes to efi loader, starting with commit 6032b6ba9596  look > > > like a possible trigger to this, but I have been unable to confirm it. > > > > > > Any suggesstions on how to proceed to debug thiss? ANy idea what a fix could > > > be? > > > > Is this UEFI or bios boot? > > Provide verbose dmesg for old and new boots on the same machine. > > For UEFI boot, show output of 'sysctl machdep.efi_map', again for old > > and new boots. > > > > I shared the data you request here: > > https://www.madpilot.net/cloud/s/ENW5zF7jfmrmFeG Thanks. If you do on the loader prompt for the new (AKA bad) kernel copy_staging enable and then boot, does the report of avail memory becomes good?