On Wed, Jun 11, 2025 at 05:40:11PM +0530, Dev Jain wrote:
> If CONFIG_UPROBES is not set, a merge subtest fails:
>
> 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
>
> CONFIG_UPROBES is enabled by CONFIG_UPROBE_EVENTS, which gets enabled by
> CONFIG_FTRACE. Therefore add this config to selftests/mm/config so that
> CI systems can include this config in the kernel build.
While I did consider this before sending my patch, not every architecture
supports uprobes :/ So this isn't a complete fix.
Also, does every architecture support ftrace? If not (and it does not seem so,
e.g there's an ARM variant that does not), I would guess this config fragment
blows up.
--
Pedro
