From nobody Tue Nov 30 19:53:35 2021 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 25E5518B24A1 for ; Tue, 30 Nov 2021 19:53:36 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4J3Xvz67yRz4gbx for ; Tue, 30 Nov 2021 19:53:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id B36091C786 for ; Tue, 30 Nov 2021 19:53:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 1AUJrZcf024171 for ; Tue, 30 Nov 2021 19:53:35 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 1AUJrZoY024170 for bugs@FreeBSD.org; Tue, 30 Nov 2021 19:53:35 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 260146] NFS client (13.0p5) to NFS server (12.2p6), hangs and unkillable processes Date: Tue, 30 Nov 2021 19:53:35 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: pi@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1638302015; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=EXdF78oV28ZsaA0eIAXTZuBcxNrO7pVBz7kFX496QpU=; b=TQPlWr3ZsNPYRX8WckcqP+bo+q7KUf6ys9TMYmvWKZHS3PRq+sFllJ5qi/OlSAduf1F5ck ihlBi8xM1k4ItM1lvRRqIYJG3s3XagTE5X39pV/qadKz/K6yoSOPgJvRiz6RuiQfckJ+tV MK9KvjmESt7XXQ5AAi0RUUuVQLvJlQ2SgXvCuNERqcbpWU2ak4pvj3fyqyBuB6/UPNhIc/ Ts42eSUDQ+jHeI1vdUKl7etk/WU60xK2n6jLR8fImhIZrBTLBCs6XBA9iwRHVUfr4FSA4U lOoZwgHuLqrWaCqiYd09FgG9wBhRg01ZtWgrQUHtnGAcThPran24vwGKWNeXEA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1638302015; a=rsa-sha256; cv=none; b=CCmZxa9xoybanpzyx2AVvC1j+jO1S8iJcRC9RSI4pQ1QrNrvxJqIvhSux3XOv5ISWuu9wI +mFyw+bXndCp4W0EbtqY9Jv1KPklSeAeUjzM3MOG8uHjbmfirS99sYcu7tWFxp8X/PhN0f FEXv5E7o3qGgx37j+0cIN8aQ/7CbBb4SNyQl1s0MM+49m/PsXOde7tmu/HtPiKSELRY+Il QHuzhKzsx7I8ArzTXWDhzKiHquQNU+d6FN4UEV7fuLHKzZ8wthcnqhZ1YWx3+epSqtamMu lE8CsYsBMDYWU1ov/PPz0zaZKLMpfpDlRv8RY56cIMxIUrSGQ0oRjR/1f9pK5w== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260146 Bug ID: 260146 Summary: NFS client (13.0p5) to NFS server (12.2p6), hangs and unkillable processes Product: Base System Version: 13.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: pi@FreeBSD.org NFS client (13.0p5) to NFS server (12.2p6), hangs and unkillable processes When trying to pinpoint the processes involved, using fstat: fstat proc hangs here, unkillable: mi_switch+0xc1 sleeplk+0xec lockmgr_slock_hard+0x382 nfs_lock+0x2c vop_sigdefer+0x2b vn_fill_kinfo_vnode+0xd5 export_vnode_to_sb+0x84 kern_proc_filedesc_out+0x1ee sysctl_kern_proc_filedesc+0x7d sysctl_root_handler_locked+0x91 sysctl_root+0x24c userland_sysctl+0x173 sys___sysctl+0x5f amd64_syscall+0x10c fast_syscall_common+0xf8=20 nfsdumpstate on both server and client does not show anything. - tcpdump sample between server (12.2p6) and client (13.0p5), taken on serv= er: 20:38:29.912755 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP = (6), length 176) .1015 > .2049: Flags [P.], cksum 0x95b3 (correct), seq 1984:2108, ack 1857, win 4353, options [nop,nop,TS val 1900843486 ecr 3042085228], length 124: NFS request xid 1920691674 120 getattr fh Unknown/ED995FFBDE3515680A00080000000000B3310E000000000000000000 0x0000: 4500 00b0 0000 4000 4006 0b5b d447 c32d E.....@.@..[.G.- 0x0010: d447 c330 03f7 0801 61be 799f 625c c9d9 .G.0....a.y.b\.. 0x0020: 8018 1101 95b3 0000 0101 080a 714c 91de ............qL.. 0x0030: b552 896c 8000 0078 727b 6dda 0000 0000 .R.l...xr{m..... 0x0040: 0000 0002 0001 86a3 0000 0003 0000 0001 ................ 0x0050: 0000 0001 0000 0030 61a6 30b7 0000 0018 .......0a.0..... 0x0060: xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxxxxxxxxxxxxxx 0x0070: xxxx xxxx xxxx xxxx 0000 03e8 0000 03e8 xxxxxxxx........ 0x0080: 0000 0001 0000 0000 0000 0000 0000 0000 ................ 0x0090: 0000 001c ed99 5ffb de35 1568 0a00 0800 ......_..5.h.... 0x00a0: 0000 0000 b331 0e00 0000 0000 0000 0000 .....1.......... 20:38:29.912762 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP = (6), length 168) .2049 > .1015: Flags [P.], cksum 0xce36 (correct), seq 1857:1973, ack 2108, win 29128, options [nop,nop,TS val 3042085228 ecr 1900843486], length 116: NFS reply xid 1920691674 reply ok 112 getattr DIR = 755 ids 0/0 sz 15 0x0000: 4500 00a8 0000 4000 4006 0b63 d447 c330 E.....@.@..c.G.0 0x0010: d447 c32d 0801 03f7 625c c9d9 61be 7a1b .G.-....b\..a.z. 0x0020: 8018 71c8 ce36 0000 0101 080a b552 896c ..q..6.......R.l 0x0030: 714c 91de 8000 0070 727b 6dda 0000 0001 qL.....pr{m..... 0x0040: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0050: 0000 0000 0000 0002 0000 01ed 0000 000f ................ 0x0060: 0000 0000 0000 0000 0000 0000 0000 000f ................ 0x0070: 0000 0000 0000 3000 0000 0000 0000 0008 ......0......... 0x0080: 0000 0000 fb5f 99ed 0000 0000 0000 0008 ....._.......... 0x0090: 5878 e8b4 39f5 8258 5824 2e46 0000 0000 Xx..9..XX$.F.... 0x00a0: 5878 e8b4 39f5 8a28 Xx..9..( This condition has already survived a nfs client reboot, we'll reboot the n= fs server in approx. 12 hours. So if someone has ideas what we can try to catch before we reboot the nfs server... ? --=20 You are receiving this mail because: You are the assignee for the bug.=