On Mon, Jul 20, 2020 at 11:33:32AM +0200, Miklos Szeredi wrote: > On Mon, Jul 20, 2020 at 10:01 AM Aa Aa <[email protected]> wrote: > > > > Hi > > > > I am trying to run some java apps via virtfs and some of the file locking > > (java) doesn't work. Here an exception (java) is thrown something about > > file locking: > > > > Here is the strace output: > > > > 3541 [pid 12461] openat(AT_FDCWD, "/mnt/<redacted> > > O_WRONLY|O_CREAT|O_APPEND, 0666 <unfinished ...> > > 3542 [pid 12461] <... openat resumed>) = 180 > > 3543 [pid 12461] fstat(180, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 > > 3544 [pid 12461] fcntl(180, F_SETLKW, {l_type=F_WRLCK, l_whence=SEEK_SET, > > l_start=0, l_len=0} <unfinished ...> > > 3545 [pid 12461] <... fcntl resumed>) = -1 EOPNOTSUPP (Operation > > not supported) > > I think that's due to an incomplete implementation of POSIX locks in > virtiofsd. > > Try "no_posix_lock" option: that should make locks work, but only > locally (i.e. inside the guest). > > Vivek, do we maybe want to turn off remote posix locks by default > until the implementation is complete?
Hi Miklos, Disabling it by default till we support blocking version of locks is probably a good idea. That way it will work out of box without having to specify no_posix_lock. Anyway, we don't support virtiofs in shared mode yet. I will send a patch. Thanks Vivek _______________________________________________ Virtio-fs mailing list [email protected] https://www.redhat.com/mailman/listinfo/virtio-fs
