Re: [PATCH 6.16 000/627] 6.16.1-rc1 review

[Naresh Kamboju <naresh.kamboju@linaro.org>]

On Wed, 13 Aug 2025 at 18:21, Mark Brown <broonie@kernel.org> wrote:
>
> On Wed, Aug 13, 2025 at 05:46:26PM +0530, Naresh Kamboju wrote:
> > On Tue, 12 Aug 2025 at 23:57, Greg Kroah-Hartman
>
> > The following list of LTP syscalls failure noticed on qemu-arm64 with
> > stable-rc 6.16.1-rc1 with CONFIG_ARM64_64K_PAGES=y build configuration.
> >
> > Most failures report ENOSPC (28) or mkswap errors, which may be related
> > to disk space handling in the 64K page configuration on qemu-arm64.
> >
> > The issue is reproducible on multiple runs.
> >
> > * qemu-arm64, ltp-syscalls - 64K page size test failures list,
> >
> >   - fallocate04
> >   - fallocate05
> >   - fdatasync03
> >   - fsync01
> >   - fsync04
> >   - ioctl_fiemap01
> >   - swapoff01
> >   - swapoff02
> >   - swapon01
> >   - swapon02
> >   - swapon03
> >   - sync01
> >   - sync_file_range02
> >   - syncfs01

These test failures are not seen on Linus tree v6.16 or v6.15.

>
> I'm also seeing epoll_ctl04 failing on Raspberry Pi 4, there's a bisect
> still running but I suspect given the error message:

Right !
LTP syscalls epoll_ctl04 test is failing on Linux mainline as well
with this error on LKFT CI system on several platforms.

>
> epoll_ctl04.c:59: TFAIL: epoll_ctl(..., EPOLL_CTL_ADD, ...) with number of nesting is 5 expected EINVAL: ELOOP (40)
>
> that it might be:
>
> # bad: [b47ce23d38c737a2f84af2b18c5e6b6e09e4932d] eventpoll: Fix semi-unbounded recursion
>
> which already got tested, or something adjacent.

A patch has been proposed to update the LTP test case to align with
recent changes in the Linux kernel code.

[LTP] [PATCH] syscalls/epoll_ctl04: add ELOOP to expected errnos

-https://lore.kernel.org/ltp/39ee7abdee12e22074b40d46775d69d37725b932.1754386027.git.jstancek@redhat.com/

- Naresh