Hi, [add lkml and linux-fsdevel] Am 10.02.24 um 11:06 schrieb Stefan Wahren:
Hi, we are using libgpiod-2.0.1 with Linux 6.1.49 on our Tarragon hardware platform. Recently we implemented an application which waits for GPIO interrupts and we were able to trigger a warning by naming the owner of the GPIO as "R1/S1": WARNING: CPU: 0 PID: 429 at fs/proc/generic.c:173 __xlate_proc_name+0x78/0x98 name 'R1/S1' CPU: 0 PID: 429 Comm: cb_tarragon_dri Not tainted 6.1.49-00019-g9dbc76303a17 #147 Hardware name: Freescale i.MX6 Ultralite (Device Tree) unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x24/0x2c dump_stack_lvl from __warn+0x74/0xbc __warn from warn_slowpath_fmt+0xc8/0x120 warn_slowpath_fmt from __xlate_proc_name+0x78/0x98 __xlate_proc_name from __proc_create+0x3c/0x284 __proc_create from _proc_mkdir+0x2c/0x70 _proc_mkdir from proc_mkdir_data+0x10/0x18 proc_mkdir_data from register_handler_proc+0xc8/0x118 register_handler_proc from __setup_irq+0x554/0x664 __setup_irq from request_threaded_irq+0xac/0x13c request_threaded_irq from edge_detector_setup+0xc0/0x1f8 edge_detector_setup from linereq_create+0x30c/0x384 linereq_create from vfs_ioctl+0x20/0x38 vfs_ioctl from sys_ioctl+0xbc/0x8b0 sys_ioctl from ret_fast_syscall+0x0/0x54 Exception stack(0xe0b61fa8 to 0xe0b61ff0) 1fa0: 01b019b8 01a9f428 0000000d c250b407 beeae888 beeae880 1fc0: 01b019b8 01a9f428 01af7e40 00000036 beeaeb88 beeaeb80 beeaeb58 beeaeb60 1fe0: 00000036 beeae868 b6a88569 b6a01ae6 ---[ end trace 0000000000000000 ]--- I'm not sure where this should be fixed.
since the discussion seems to stuck here [1], i reposted my original mail to a wider audience. Regards [1] - https://lore.kernel.org/linux-gpio/20240213030409.GA35527@rigel/
