mirror of
git://git.yoctoproject.org/linux-yocto.git
synced 2025-07-05 13:25:20 +02:00
6c94a16ba2
[ Upstream commit 197c1eaa7ba633a482ed7588eea6fd4aa57e08d4 ]
When running the mincore_selftest on a system with an XFS file system, it
failed the "check_file_mmap" test case due to the read-ahead pages reaching
the end of the file. The failure log is as below:
RUN global.check_file_mmap ...
mincore_selftest.c:264:check_file_mmap:Expected i (1024) < vec_size (1024)
mincore_selftest.c:265:check_file_mmap:Read-ahead pages reached the end of the file
check_file_mmap: Test failed
FAIL global.check_file_mmap
This is because the read-ahead window size of the XFS file system on this
machine is 4 MB, which is larger than the size from the #PF address to the
end of the file. As a result, all the pages for this file are populated.
blockdev --getra /dev/nvme0n1p5
8192
blockdev --getbsz /dev/nvme0n1p5
512
This issue can be fixed by extending the current FILE_SIZE 4MB to a larger
number, but it will still fail if the read-ahead window size of the file
system is larger enough. Additionally, in the real world, read-ahead pages
reaching the end of the file can happen and is an expected behavior.
Therefore, allowing read-ahead pages to reach the end of the file is a
better choice for the "check_file_mmap" test case.
Link: https://lore.kernel.org/r/20250311080940.21413-1-qiuxu.zhuo@intel.com
Reported-by: Yi Lai <yi1.lai@intel.com>
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
|---|---|---|
| .. | ||
| accounting | ||
| arch | ||
| bootconfig | ||
| bpf | ||
| build | ||
| certs | ||
| cgroup | ||
| counter | ||
| debugging | ||
| edid | ||
| firewire | ||
| firmware | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| io_uring | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| objtool | ||
| pci | ||
| pcmcia | ||
| perf | ||
| power | ||
| rcu | ||
| scripts | ||
| spi | ||
| testing | ||
| thermal | ||
| time | ||
| tracing | ||
| usb | ||
| verification | ||
| virtio | ||
| vm | ||
| wmi | ||
| Makefile | ||