On Wed, 13 Aug 2025 at 18:21, Mark Brown [off-list ref] wrote:

On Wed, Aug 13, 2025 at 05:46:26PM +0530, Naresh Kamboju wrote:

quoted

On Tue, 12 Aug 2025 at 23:57, Greg Kroah-Hartman

quoted

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/ (local)

- Naresh