From nobody Mon Oct 9 16:51:05 2023 X-Original-To: freebsd-current@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 4S44nC4h9zz4x2gt for ; Mon, 9 Oct 2023 16:51:43 +0000 (UTC) (envelope-from arunodhayam89@gmail.com) Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1D4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4S44nB559xz3cpy for ; Mon, 9 Oct 2023 16:51:42 +0000 (UTC) (envelope-from arunodhayam89@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20230601 header.b="Iurzqom/"; spf=pass (mx1.freebsd.org: domain of arunodhayam89@gmail.com designates 2607:f8b0:4864:20::d2c as permitted sender) smtp.mailfrom=arunodhayam89@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-io1-xd2c.google.com with SMTP id ca18e2360f4ac-79f909071c3so195469439f.0 for ; Mon, 09 Oct 2023 09:51:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1696870301; x=1697475101; darn=freebsd.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=mh4lUfMaXromjilLyY0dn6XEazCjjVLDlGpmUeebdxM=; b=Iurzqom/KVKQ5XUAVEzkNcy+Qom1PqjkTA1Ujf6OFEaOpnMtaaPG50i2t8cXkVLlnw nbkx63plu8VIUmzIipyJEKYQh+ftVgvPnKStpVyDrWOQmPIXXHjeB9xPsniobfWZRDdm QM8wwJa7QToRYLdVbeJiMXviNm0/94n8SGhKQW1f66CSobtmDDfmukHMXt4yQRcJL7G1 /X47hTd8Qajf9bNzmegrKoH5JKJaXqoB61O3RhYy98ixkkDAJTAHkpIKBPNRTXrnCIUY pAJxkVb2ttOtKa9jRUc/aL+yc9l6+acQE09dX5syJ5TsJwEPqCQKtbw/KOFao1i4Nr/n 5wsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696870301; x=1697475101; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=mh4lUfMaXromjilLyY0dn6XEazCjjVLDlGpmUeebdxM=; b=UhtnnQeoFqdXOiHtYxBqyRXglseNqhZVzH+kZ6iYuEyahs3VeVz8xyLWclPvpH3PHP hcEAJ/cf8Gex1SNcQJtGpJj++9ShqFJiF1KoJ9tSPEhexqk10/V66LKPnd2v1zTyte12 gV+9TtqQT0XJQHLg/9VieXbx9IK2otb/m4ipOg0U6+sYMKoS/xEjl+AI08Xd9ivyQZWk PHhjSDyvOnLJ8G62sz7LEuVh/B6lQPfK4LOdg2HJx5AlMPmMvdegLT7QjDA6+iZFvX3T QGUzXjti4oyvFhfC5em82HE6p8bKRFcDVeBzu1WvbyJEIEMlZrZLwsKXuYfggb0UOqHI RP0Q== X-Gm-Message-State: AOJu0YwfE17gIHX4nResNQ/kP6aylY01O5s5b8STJY080eAqXvixuMAI zgH0zAGZ87Ozt/Ks+3oGHik569iUEnXu1Z8H9W095Zamn7Jj7fpW X-Google-Smtp-Source: AGHT+IFsWa/CvdDNm3EooWKeZMlP7r+3K5g7Z4yrtWX1dTFT47N7dP8DnQ7JBJUtH4UZj5FTj0Ma31Pi4e649tqbAeM= X-Received: by 2002:a5e:9404:0:b0:785:ca70:46a2 with SMTP id q4-20020a5e9404000000b00785ca7046a2mr18680967ioj.4.1696870301168; Mon, 09 Oct 2023 09:51:41 -0700 (PDT) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 From: Arun Varghese Date: Mon, 9 Oct 2023 22:21:05 +0530 Message-ID: Subject: LOR seen on 13.x kernel To: freebsd-current@freebsd.org Content-Type: multipart/alternative; boundary="00000000000087fb2f06074b67b8" X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.90 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.98)[-0.983]; NEURAL_HAM_LONG(-0.92)[-0.920]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; RCPT_COUNT_ONE(0.00)[1]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; BLOCKLISTDE_FAIL(0.00)[2607:f8b0:4864:20::d2c:server fail]; ARC_NA(0.00)[]; RCVD_TLS_LAST(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::d2c:from]; DKIM_TRACE(0.00)[gmail.com:+]; MID_RHS_MATCH_FROMTLD(0.00)[]; TO_DN_NONE(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; RCVD_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org] X-Rspamd-Queue-Id: 4S44nB559xz3cpy --00000000000087fb2f06074b67b8 Content-Type: text/plain; charset="UTF-8" Hi All, Seeing the below LOR in the 13.x kernel, is this a known issue ? Could this cause vnode to max out and slow down the system. Is there a patch available?(or can we ignore this ?) kernel: Waiting (max 60 seconds) for system process `vnlru' to stop...done kernel: Waiting (max 60 seconds) for system process `bufdaemon' to stop...done kernel: Waiting (max 60 seconds) for system process `syncer' to stop... kernel: Syncing disks, vnodes remaining...114 lock order reversal: kernel: 1st 0xfffff80003b26068 syncer (syncer) @ kern/vfs_subr.c:1853 kernel: 2nd 0xfffff800038902d8 devfs (devfs) @ ufs/ffs/ffs_vfsops.c:1632 kernel: KDB: stack backtrace: kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0x fffffe022f899630 kernel: witness_checkorder() at witness_checkorder+0xc87/frame 0x fffffe022f8996c0 kernel: __lockmgr_args() at __lockmgr_args+0x745/frame 0xfffffe022f8997f0 kernel: vop_stdlock() at vop_stdlock+0x3c/frame 0xfffffe022f899810 kernel: VOP_LOCK1_APV() at VOP_LOCK1_APV+0xab/frame 0xfffffe022f899840 kernel: _vn_lock() at _vn_lock+0x43/frame 0xfffffe022f8998a0 kernel: ffs_sync() at ffs_sync+0x2f9/frame 0xfffffe022f899970 kernel: sync_fsync() at sync_fsync+0xfa/frame 0xfffffe022f8999b0 kernel: VOP_FSYNC_APV() at VOP_FSYNC_APV+0xc4/frame 0xfffffe022f8999e0 kernel: sched_sync() at sched_sync+0x338/frame 0xfffffe022f899a70 kernel: fork_exit() at fork_exit+0x71/frame 0xfffffe022f899ab0 kernel: fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe022f899ab0 Regards Arun --00000000000087fb2f06074b67b8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
<= div id=3D"gmail-:1au" class=3D"gmail-a3s gmail-aiL">
H= i All,
Seeing the below LOR in the 13.x kernel, is this a kno= wn issue ?
Could this cause vnode to max out and slow down the sy= stem.
Is there a patch available?(or can we ignore this ?)

=
kernel: Wa= iting (max = 60 seconds) for system process `vnlru' to stop...done
<= br>
kernel: Waiting (max 60 seconds) for system process `bufdaemon= 9; to stop...done

kernel: Waiting (<= span style=3D"color:rgb(220,220,170)">max 60 seconds) for system proce= ss `syncer' to stop...

kernel: Syncing disks, vnodes remaining...114 lock order reversal:

kernel: 1st 0xfffff80003b26068 syncer (syncer) = @ kern/vfs_s= ubr.c:1853

kernel: 2nd 0xfffff800038902d8 devfs (devfs) @ ufs/= ffs/ffs_vfsops.c:1632

kernel: KDB: stack backtrace:

kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0= x2b/frame 0xfffffe022f899630

kernel: witness_checkorder() at witness= _checkorder+0xc87/frame 0x= fffffe022f8996c0

kernel: _= _lockmgr_args() at __lockmgr_args+0x745/frame 0xfffffe0= 22f8997f0

kernel: vop_stdlock() at vop_stdlock+0x= 3c/frame 0xfffffe022f899810

kernel: VOP_LOCK1_APV() at VOP_LOCK1_APV= +0xab/frame 0xfffffe022f899840

kernel: _vn_lock() at _vn_l= ock+0x43/frame 0xfffffe022f8998a0

kernel: ffs_sync()= at ffs_sync+0x2f9/frame 0= xfffffe022f899970

kernel: = sync_fsync() at sync_fsync+0xfa/frame 0xfffffe022f8999b= 0

kernel: VOP_FSYNC_APV() at VOP_FSYNC_APV+0xc4/frame 0xfffffe022f8999e0 <= /div>
kernel: sched_sync() at sched_sync+= 0x338/frame = 0xfffffe022f899a70

kernel: fork_exit() at fork_exit+0x71/frame 0xfffffe022f899ab0

kernel: fork_trampoline() = at fork_trampoline+0xe/frame 0xfffffe022f899ab0=

Regards
Arun<= br>
<= /div>
--00000000000087fb2f06074b67b8--