man > proc_pid_wchan(5)

proc_pid_wchan(5)                        File Formats Manual                       proc_pid_wchan(5)

NAME
       /proc/pid/wchan - wait channel

DESCRIPTION
       /proc/pid/wchan (since Linux 2.6.0)
              The  symbolic  name  corresponding  to the location in the kernel where the process is
              sleeping.

              Permission  to  access   this   file   is   governed   by   a   ptrace   access   mode
              PTRACE_MODE_READ_FSCREDS check; see ptrace(2).

SEE ALSO
       proc(5)

Linux man-pages 6.7                          2023-08-15                            proc_pid_wchan(5)