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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Jun 2025 12:52:01.1109 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 45a0ab47-a8fb-4c87-cca5-08dda8e6c24a X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AMS1EPF00000042.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR08MB6146 X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: B05C6C0007 X-Stat-Signature: rs89sjnasj5ymgojqnj6g1y5rdyhuj7u X-HE-Tag: 1749646327-360878 X-HE-Meta: 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 Sh39V4Wv 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 11/06/25 6:05 pm, Lorenzo Stoakes wrote: > Thanks for this! > > 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_m= erged_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= ) =3D=3D 0 (0) >> 7155 12:46:54.650730 # # # handle_uprobe_upon_merged_vma: Test termi= nated by assertion >> 7156 12:46:54.661750 # # # FAIL merge.handle_uprobe_upon_m= erged_vma >> 7157 12:46:54.662030 # # not ok 8 merge.handle_uprobe_upon_merged_vm= a >> >> 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. > OK I see the dependency chain here: > > menuconfig FTRACE > bool "Tracers" > depends on TRACING_SUPPORT > default y if DEBUG_KERNEL > help > Enable the kernel tracing infrastructure. > > if FTRACE > > ... > > endif # FTRACE > > .. > > config UPROBE_EVENTS > bool "Enable uprobes-based dynamic events" > depends on ARCH_SUPPORTS_UPROBES > depends on MMU > depends on PERF_EVENTS > select UPROBES > select PROBE_EVENTS > select DYNAMIC_EVENTS > select TRACING > default y > > ... > > > However we also need PERF_EVENTS w, which is defaulted to y if CONFIG_PRO= FILING > is set: > > config PERF_EVENTS > bool "Kernel performance events and counters" > default y if PROFILING > depends on HAVE_PERF_EVENTS > select IRQ_WORK > > ... > > > config PROFILING > bool "Profiling support" > help > Say Y here to enable the extended profiling support mechanisms us= ed > by profilers. > > So maybe to be totally and completely pedantic we should add CONFIG_PROFI= LING > here too. I don't totally understand this config stuff but I will trust you and updat= e this in v2 : ) > >> Fixes: efe99fabeb11b ("selftests/mm: add test about uprobe pte be orphan= during vma merge") >> Reported-by: Aishwarya >> Closes: https://lore.kernel.org/all/20250610103729.72440-1-aishwarya.tcv= @arm.com/ > This is already (semi-)addressed by > https://lore.kernel.org/linux-mm/20250610122209.3177587-1-pfalcato@suse.d= e/, > perhaps worth mentioning? > > Pedro's patch is still important, as for any system that hasn't happened = to set > this up, we get a skip + information rather than a failure. > >> Signed-off-by: Dev Jain > This looks correct, see above for nits etc. but: > > Reviewed-by: Lorenzo Stoakes Thanks. > >> --- >> tools/testing/selftests/mm/config | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/tools/testing/selftests/mm/config b/tools/testing/selftests= /mm/config >> index a28baa536332..e600b41030c1 100644 >> --- a/tools/testing/selftests/mm/config >> +++ b/tools/testing/selftests/mm/config >> @@ -8,3 +8,4 @@ CONFIG_GUP_TEST=3Dy >> CONFIG_TRANSPARENT_HUGEPAGE=3Dy >> CONFIG_MEM_SOFT_DIRTY=3Dy >> CONFIG_ANON_VMA_NAME=3Dy >> +CONFIG_FTRACE=3Dy >> -- >> 2.30.2 >> IMPORTANT NOTICE: The contents of this email and any attachments are confid= ential and may also be privileged. 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