Date: Thu, 08 Jan 2026 19:49:19 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 292283] (JAVA) NFSv4.1 client trying to set FATTR4_SYSTEM or FATTR4_HIDDEN gets EPERM for file and dir creation attemps Message-ID: <bug-292283-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292283 Bug ID: 292283 Summary: (JAVA) NFSv4.1 client trying to set FATTR4_SYSTEM or FATTR4_HIDDEN gets EPERM for file and dir creation attemps Product: Base System Version: 15.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: aurelien.couderc2002@gmail.com Our CI uses this script to quickly setup a FreeBSD NFSv4.1 server for testing. The script worked with FreeBSD 14.2, but with FreeBSD 15.0 all files are suddenly read-only (write access gets EPERM): sysrc rpcbind_enable="YES" sysrc mountd_enable="YES" sysrc nfs_server_enable=YES sysrc nfsv4_server_enable=YES sysrc nfsuserd_flags="-domain GLOBAL.LOC" sysrc nfsuserd_enable=YES sysrc nfscbd_enable=YES printf 'vfs.nfs.enable_uidtostring=0\n' >>'/etc/sysctl.conf' printf 'vfs.nfsd.enable_stringtouid=0\n' >>'/etc/sysctl.conf' printf 'vfs.nfsd.issue_delegations=1\n' >>'/etc/sysctl.conf' mkdir /nfsdata chmod a+rwxt /nfsdata printf 'V4: /\n' >'/etc/exports' printf '/nfsdata -network=80.247.17.0 -mask=255.255.255.0 -sec=sys\n' >>'/etc/exports' service nfsd start The failed NFS4.2 op looks like this in wireshark: Network File System, Ops(8): SEQUENCE, PUTFH, SAVEFH, OPEN, GETFH, GETATTR, RESTOREFH, GETATTR [Program Version: 4] [V4 Procedure: COMPOUND (1)] Tag: open minorversion: 2 Operations (count: 8): SEQUENCE, PUTFH, SAVEFH, OPEN, GETFH, GETATTR, RESTOREFH, GETATTR Opcode: SEQUENCE (53) Opcode: PUTFH (22) Opcode: SAVEFH (32) Opcode: OPEN (18) seqid: 0x00000000 share_access: OPEN4_SHARE_ACCESS_WRITE (2) share_deny: OPEN4_SHARE_DENY_NONE (0) clientid: 0x0000000000000000 owner: <DATA> Open Type: OPEN4_CREATE (1) Create Mode: UNCHECKED4 (0) Attr mask[0]: 0x02000010 (Size, Hidden) reqd_attr: Size (4) size: 0 reco_attr: Hidden (25) fattr4_hidden: No Attr mask[1]: 0x00004002 (Mode, System) reco_attr: Mode (33) mode: 0644, Name: Unknown, Read permission for owner, Write permission for owner, Read permission for group, Read permission for others reco_attr: System (46) fattr4_system: No Claim Type: CLAIM_NULL (0) Name: u length: 1 contents: u fill bytes: opaque data Opcode: GETFH (10) Opcode: GETATTR (9) Opcode: RESTOREFH (31) Opcode: GETATTR (9) [Main Opcode: OPEN (18)] Based on comments in freebsd-hackers@ this is an issue with ZFS, see https://lists.freebsd.org/archives/freebsd-hackers/2026-January/005476.html -- You are receiving this mail because: You are the assignee for the bug.home | help
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