Thanks Pavel. After messing around with the Kernel build procedure on my distro and adapting the patch slightly (filenumbers did not match) I got a working cifs module. And it solved the issue at least for the python test. I'll check tomorrow the other software where it occured.
Could you try the following patch in your setup to see if it fixes the problem?diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 047066493832..00d2ac80cd6e 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -3314,6 +3314,11 @@ smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) return; + /* Check if the server granted an oplock rather than a lease */ + if (oplock & SMB2_OPLOCK_LEVEL_EXCLUSIVE) + return smb2_set_oplock_level(cinode, oplock, epoch, + purge_cache); + if (oplock & SMB2_LEASE_READ_CACHING_HE) { new_oplock |= CIFS_CACHE_READ_FLG; strcat(message, "R"); -- Best regards, Pavel Shilovsky
