[linux-next:master] [gpio] b31c68fd85: kernel-selftests.gpio.gpio-aggregator.sh.fail

[kernel test robot <oliver.sang@intel.com>]

Hello,

kernel test robot noticed "kernel-selftests.gpio.gpio-aggregator.sh.fail" on:

commit: b31c68fd851e74526ad963362ea205eb97b9a710 ("gpio: aggregator: handle runtime registration of gpio_desc in gpiochip_fwd")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 262858079afde6d367ce3db183c74d8a43a0e83f]

in testcase: kernel-selftests
version: kernel-selftests-x86_64-592a93fea16b-1_20250918
with following parameters:

	group: gpio



config: x86_64-rhel-9.4-kselftests
compiler: gcc-14
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202509281206.a7334ae8-lkp@intel.com


# timeout set to 300
# selftests: gpio: gpio-aggregator.sh
# trap: SIGTERM: bad trap
# 1. GPIO aggregator creation/deletion
# 1.1. Creation/deletion via configfs
# 1.1.1. Minimum creation/deletion
# 1.1.2. Complex creation/deletion
# 1.1.3. Can't instantiate a chip without any line
# 1.1.4. Can't instantiate a chip with invalid configuration
# 1.1.5. Can't instantiate a chip asynchronously via deferred probe
# 1.1.6. Can't instantiate a chip with _sysfs prefix
# 1.2. Creation/deletion via sysfs
# 1.2.1. Minimum creation/deletion
# 1.2.2. Complex creation/deletion
# 1.2.3. Asynchronous creation with deferred probe
# 1.2.4. Can't instantiate a chip with invalid configuration
# 2. GPIO aggregator configuration
# 2.1. Configuring aggregators instantiated via configfs
# 2.1.1. While offline
# 2.1.1.1. Line can be added/removed
# 2.1.1.2. Line key can be modified
# 2.1.1.3. Line name can be modified
# 2.1.1.4. Line offset can be modified
# 2.1.1.5. Can re-enable a chip after valid reconfiguration
# 2.1.1.7. Can't re-enable a chip with invalid reconfiguration
# 2.1.2. While online
# 2.1.2.1. Can't add/remove line
# 2.1.2.2. Can't modify line key
# 2.1.2.3. Can't modify line name
# 2.1.2.4. Can't modify line offset
# 2.2. Configuring aggregators instantiated via sysfs
# 2.2.1. While online
# 2.2.1.1. Can toggle live
# 2.2.1.2. Can't add/remove line
# 2.2.1.3. Can't modify line key
# 2.2.1.4. Can't modify line name
# 2.2.1.5. Can't modify line offset
# 2.2.2. While waiting for deferred probe
# 2.2.2.1. Can't add/remove line despite live = 0
# 2.2.2.2. Can't modify line key
# 2.2.2.3. Can't modify line name
# 2.2.2.4. Can't modify line offset
# 2.2.2.5. Can't toggle live
# 2.2.3. While offline
# 2.2.3.1. Can't add/remove line despite live = 0
# 2.2.3.2. Line key can be modified
# 2.2.3.3. Line name can be modified
# 2.2.3.4. Line offset can be modified
# 2.2.3.5. Can re-enable a chip with valid reconfiguration
# 2.2.3.6. Can't re-enable a chip with invalid reconfiguration
# 3. Module unload
# 3.1. Can't unload module if there is at least one device created via configfs
# 3.2. Can unload module if there is no device created via configfs
# 4. GPIO forwarder functional
# 4.1. Forwarding set values
# 4.2. Forwarding set config
# incorrect value read from sysfs
# GPIO gpio-aggregator test FAIL
not ok 3 selftests: gpio: gpio-aggregator.sh # exit=1



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250928/202509281206.a7334ae8-lkp@intel.com



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https://github.com/intel/lkp-tests/wiki