Date: Tue, 21 Jun 2022 23:34:21 -0600 From: Warner Losh <imp@bsdimp.com> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: Stefan Blachmann <sblachmann@gmail.com>, Emmanuel Vadot <manu@bidouilliste.com>, Ed Maste <emaste@freebsd.org>, Poul-Henning Kamp <phk@phk.freebsd.dk>, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: Reasons for keeping sc(4) and libvgl ? Message-ID: <CANCZdfraihrmoHsu85aFWUT3zwTO%2B-x_Jbcdk0f%2Bxrr7kMxckg@mail.gmail.com> In-Reply-To: <YrKhlZnlF%2ByxZd9X@troutmask.apl.washington.edu> References: <20211126160454.3eb827365a02103169ab9adc@bidouilliste.com> <20220621201924.e9b96876c947140ac1f3b7a4@bidouilliste.com> <3d09c86a-9840-f8bf-4725-8098d958a01d@plan-b.pwste.edu.pl> <202206211901.25LJ1uBd067376@critter.freebsd.dk> <CAPyFy2Ca83X042jc5QE-g=eHAfnukHScrTSyaLRi4UxeTBasJQ@mail.gmail.com> <20220622044923.6e2fac81c1e8205872d9de11@bidouilliste.com> <CACc-My0q-Ods_O-TDru=tEwjSOaUJZZd=ZTzD46nY1gjGYO_VA@mail.gmail.com> <CANCZdfoRCB5RuszKWTQazRuseRnapVqMTANnQTR0b61AHw54aQ@mail.gmail.com> <YrKhlZnlF%2ByxZd9X@troutmask.apl.washington.edu>
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--0000000000002072b205e202b156 Content-Type: text/plain; charset="UTF-8" On Tue, Jun 21, 2022, 10:59 PM Steve Kargl <sgk@troutmask.apl.washington.edu> wrote: > On Tue, Jun 21, 2022 at 10:55:01PM -0600, Warner Losh wrote: > > On Tue, Jun 21, 2022, 9:47 PM Stefan Blachmann <sblachmann@gmail.com> > wrote: > > > > > I would kindly ask to stop pushing for removal of sc. > > > > > > > It will die soon enough if it doesn't become giant locked soon... > > > > Warner > > > > Are you deleting vt, too? > The project likely has resources to remove giant from only one console driver. That will almost certainly be vt. Warner > % grep -i giant /var/run/dmesg.boot > atkbd0: [GIANT-LOCKED] > WARNING: Device "fb" is Giant locked and may be deleted before FreeBSD > 14.0. > lock order reversal: (Giant after non-sleepable) > 2nd 0xffffffff80c02840 Giant (Giant, sleep mutex) @ > /usr/src/sys/kern/kern_synch.c:232 > lock order Giant -> vtdev established at: > lock order vtdev -> Giant attempted at: > > -- > Steve > --0000000000002072b205e202b156 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"auto"><div><br><br><div class=3D"gmail_quote"><div dir=3D"ltr" = class=3D"gmail_attr">On Tue, Jun 21, 2022, 10:59 PM Steve Kargl <<a href= =3D"mailto:sgk@troutmask.apl.washington.edu">sgk@troutmask.apl.washington.e= du</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margi= n:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Tue, Jun 21, 2= 022 at 10:55:01PM -0600, Warner Losh wrote:<br> > On Tue, Jun 21, 2022, 9:47 PM Stefan Blachmann <<a href=3D"mailto:s= blachmann@gmail.com" target=3D"_blank" rel=3D"noreferrer">sblachmann@gmail.= com</a>> wrote:<br> > <br> > > I would kindly ask to stop pushing for removal of sc.<br> > ><br> > <br> > It will die soon enough if it doesn't become giant locked soon...<= br> > <br> > Warner<br> > <br> <br> Are you deleting vt, too?<br></blockquote></div></div><div dir=3D"auto"><br= ></div><div dir=3D"auto">The project likely has resources to remove giant f= rom only one console driver. That will almost certainly be vt.</div><div di= r=3D"auto"><br></div><div dir=3D"auto">Warner=C2=A0</div><div dir=3D"auto">= <br></div><div dir=3D"auto"><div class=3D"gmail_quote"><blockquote class=3D= "gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding= -left:1ex"> <br> % grep -i giant /var/run/dmesg.boot <br> atkbd0: [GIANT-LOCKED]<br> WARNING: Device "fb" is Giant locked and may be deleted before Fr= eeBSD 14.0.<br> lock order reversal: (Giant after non-sleepable)<br> =C2=A02nd 0xffffffff80c02840 Giant (Giant, sleep mutex) @ /usr/src/sys/kern= /kern_synch.c:232<br> lock order Giant -> vtdev established at:<br> lock order vtdev -> Giant attempted at:<br> <br> -- <br> Steve<br> </blockquote></div></div></div> --0000000000002072b205e202b156--
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