On Sun, Jan 07, 2024 at 08:21:35PM +0200, Manolis Stamatogiannakis wrote: > I am trying to get plocate to run on an old ARM-based NAS running Debian > bookworm. Building the database with updatedb works fine, but plocate > command itself blocks forever without giving any results back. > > I attached gdb to the process, and the source of the problem appears to > be related to the use of io_uring. > > Trying to understand what is going on, I ran plocate under strace as > root. Surprisingly, it ran without blocking.
This is interesting, but fundamentally pretty impossible to debug from my side. It sounds very much like a timing-related bug, which is probably why strace affects it (everything goes much slower); another common case is that one attaches strace to a running process, which causes the io_uring syscall to return EINTR, which gets things running again. Is this reproducible every time? > * reports an error for not being able to access the database when run > under strace as user (which sounds like the expected behaviour) Yes, this is expected. > Architecture: armel (armv5tel) > Kernel: Linux 6.1.0-17-marvell (UP) Is this even supported by Debian anymore? /* Steinar */ -- Homepage: https://www.sesse.net/
