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Mon, 07 Jul 2025 06:14:33 -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 References: In-Reply-To: From: Oleg Nauman Date: Mon, 7 Jul 2025 16:14:22 +0300 X-Gm-Features: Ac12FXxOktypKHSmGieO2pbhgn_vp7dRjtOhtBqSd5weWZaD6fXXPLpmSsfWmY0 Message-ID: Subject: Re: tail -f is broken in recent CURRENT ( afd5bc630930 Sunday Jul 6 ) To: Konstantin Belousov Cc: FreeBSD Current , David Wolfskill Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 4bbPpg4CCmz426B X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; TAGGED_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US] On Mon, Jul 7, 2025 at 3:53=E2=80=AFPM Konstantin Belousov wrote: > > On Mon, Jul 07, 2025 at 03:36:12PM +0300, Oleg Nauman wrote: > > I noticed that > > tail -f /var/log/messages never receive updates if running with recent > > CURRENT ( afd5bc630930 Sunday Jul 6 ) > > > > 60092: read(3,"talled\nJul 6 16:59:54 mysystem pkg-static[86368]: > > gstreamer1-plugins-mpg123-1.26.2 deinstalled\nJul 6 16:59:57 mysytem > > pkg"...,32768) =3D 2666 (0xa6a) > > 60092: munmap(0x801403000,297578) =3D 0 (0x0) > > 60092: read(3,0x80182c600,32768) =3D 0 (0x0) > > 60092: kqueue() =3D 5 (0x5) > > 60092: fstatfs(3,{ > > fstypename=3Dufs,mntonname=3D/,mntfromname=3D/dev/gpt/FreeBSD-UFS,fsid= =3D133a996124e0f956 > > }) =3D 0 (0x0) > > 60092: kevent(5,{ 3,EVFILT_READ,EV_ADD|EV_ENABLE|EV_CLEAR,0,0,0x0 > > },1,0x0,0,{ 0.000000000 }) =3D 0 (0x0) > > 60092: kevent(5,0x0,0,0x801814000,1,0x0) ERR#4 'Interrupted > > system call' <--- killed at this point by me > > 60095: select(7,{ 6 },0x0,0x0,0x0) ERR#4 'Interrupted sys= tem call' > > 60092: SIGNAL 2 (SIGINT) code=3DSI_KERNEL > > 60095: SIGNAL 2 (SIGINT) code=3DSI_KERNEL > > 60095: process killed, signal =3D 2 > > 60092: process killed, signal =3D 2 > > > > Likely something is wrong with kqueue and/or kevent > > Try this > > diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h > index 3ed469bdce6d..2c6947103c94 100644 > --- a/sys/sys/vnode.h > +++ b/sys/sys/vnode.h > @@ -1032,7 +1032,7 @@ void vop_rename_fail(struct vop_rename_args *a= p); > #define VOP_WRITE_POST(ap, ret) = \ > noffset =3D (ap)->a_uio->uio_offset; = \ > if (noffset > ooffset) { \ > - if (VN_KNLIST_EMPTY((ap)->a_vp)) { \ > + if (!VN_KNLIST_EMPTY((ap)->a_vp)) { \ > VFS_KNOTE_LOCKED((ap)->a_vp, NOTE_WRITE | \ > (noffset > osize ? NOTE_EXTEND : 0)); \ > } \ > Buildworld is running, please give me two hours or so Thank you