1:22 a.m.
On Wed, Jun 09, 2021 at 04:01:20PM +0200, Christophe Leroy wrote:
Le 09/06/2021 à 15:55, kernel test robot a écrit :
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 368094df48e680fa51cedb68537408cfa64b788e
> commit: 4eeef098b43242ed145c83fba9989d586d707589 powerpc/44x: Remove STDBINUTILS
kconfig option
> date: 4 months ago
> config: powerpc-randconfig-r012-20210609 (attached as .config)
> compiler: powerpc-linux-gcc (GCC) 9.3.0
That's a BTRFS issue, and not directly linked to the above mentioned commit. Before
that commit the
problem was already present.
Problem is that with 256k PAGE_SIZE, following BUILD_BUG() pops up:
BUILD_BUG_ON((BTRFS_MAX_COMPRESSED % PAGE_SIZE) != 0)
A 256K page is a problem for btrfs, until now I was not even aware
there's an architecture supporting that so. That the build fails is
probably best thing. Maximum metadata nodesize supported is 64K and
having that on a 256K page would need deeper changes, no top of the
currently developed subpage changes (that do 4K blocks on 64K pages).