On Tue, Jun 10, 2025 at 11:37:29AM +0100, Aishwarya wrote:
Hi,
kselftest-mm test 'merge.handle_uprobe_upon_merged_vma' is failing against mainline master v6.16-rc1 with Arm64 on Ampere Altra/TX2 in our CI. The kernel was built using defconfig along with the additional config fragment from:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tool...
I understand the failure is already being discussed and is expected to be addressed by including sys/syscall.h.Sharing this observation here for reference.
This is a different problem.
A bisect identified commit efe99fabeb11b030c89a7dc5a5e7a7558d0dc7ec as the first bad commit. This was bisected against tag v6.16-rc1 from:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
This test passes on Linux version v6.15-13627-g119b1e61a769.
Failure log:
7151 12:46:54.627936 # # # RUN merge.handle_uprobe_upon_merged_vma ... 7152 12:46:54.639014 # # f /sys/bus/event_source/devices/uprobe/type 7153 12:46:54.639306 # # fopen: No such file or directory 7154 12:46:54.650451 # # # merge.c:473:handle_uprobe_upon_merged_vma:Expected read_sysfs("/sys/bus/event_source/devices/uprobe/type", &type) (1) == 0 (0) 7155 12:46:54.650730 # # # handle_uprobe_upon_merged_vma: Test terminated by assertion 7156 12:46:54.661750 # # # FAIL merge.handle_uprobe_upon_merged_vma 7157 12:46:54.662030 # # not ok 8 merge.handle_uprobe_upon_merged_vma
So, basically we're not finding the uprobe (I guess CONFIG_UPROBES isn't set in defconfig, and it's not in the mm/config either), and the test just fails instead of skipping.