Date: Tue, 13 May 2014 18:20:32 +0200 From: Michael Tuexen <tuexen@freebsd.org> To: Aleksandr Rybalko <ray@freebsd.org> Cc: "freebsd-arm@freebsd.org" <arm@freebsd.org>, src-committers@freebsd.org Subject: Re: svn commit: r265927 - head/sys/dev/vt Message-ID: <2899E6ED-712E-46BC-960B-9847FD99431C@freebsd.org> In-Reply-To: <201405121929.s4CJTcBx010967@svn.freebsd.org> References: <201405121929.s4CJTcBx010967@svn.freebsd.org>
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Hi Aleksandr,
could it be that this commit results in the following panic when booting
a Raspberry Pi:
fb0: 656x416(0x0@0,0) 16bpp
fb0: pitch 1312, base 0x5e006000, screen_size 545792
fbd0 on fb0
VT: initialize with new VT driver "fb".
panic: mtx_lock() of spin mutex (null) @ =
/usr/home/tuexen/head/sys/dev/vt/vt_core.c:2035
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at $d: ldrb r15, [r15, r15, ror r15]!
db> where=20
Tracing pid 0 tid 100000 td 0xc06648a0
db_trace_self() at db_trace_self
pc =3D 0xc0495760 lr =3D 0xc0130fdc (db_stack_trace+0xf4)
sp =3D 0xc075ea68 fp =3D 0xc075ea80
r10 =3D 0xc0663930
db_stack_trace() at db_stack_trace+0xf4
pc =3D 0xc0130fdc lr =3D 0xc013094c (db_command+0x270)
sp =3D 0xc075ea88 fp =3D 0xc075eb28
r4 =3D 0x00000000 r5 =3D 0x00000000
r6 =3D 0x00000072
db_command() at db_command+0x270
pc =3D 0xc013094c lr =3D 0xc01306b0 (db_command_loop+0x60)
sp =3D 0xc075eb30 fp =3D 0xc075eb40
r4 =3D 0xc04d5176 r5 =3D 0xc04ef7ba
r6 =3D 0xc066391c r7 =3D 0xc0590b40
r8 =3D 0xc065a294 r9 =3D 0xc065a290
r10 =3D 0xc075ed10
db_command_loop() at db_command_loop+0x60
pc =3D 0xc01306b0 lr =3D 0xc0133078 (db_trap+0xd8)
sp =3D 0xc075eb48 fp =3D 0xc075ec68
r4 =3D 0x00000000 r5 =3D 0xc0663928
r6 =3D 0xc065a2c0
db_trap() at db_trap+0xd8
pc =3D 0xc0133078 lr =3D 0xc028de10 (kdb_trap+0xbc)
sp =3D 0xc075ec70 fp =3D 0xc075ec90
r4 =3D 0x00000000 r5 =3D 0x00000001
r6 =3D 0xc065a2c0 r7 =3D 0xc0590b40
kdb_trap() at kdb_trap+0xbc
pc =3D 0xc028de10 lr =3D 0xc04a90e0 =
(undefinedinstruction+0x298)
sp =3D 0xc075ec98 fp =3D 0xc075ed08
r4 =3D 0x00000000 r5 =3D 0x00000000
r6 =3D 0xc04a8d98 r7 =3D 0xe7ffffff
r8 =3D 0xc06648a0 r9 =3D 0xc028d6e0
r10 =3D 0xc075ed10
undefinedinstruction() at undefinedinstruction+0x298
pc =3D 0xc04a90e0 lr =3D 0xc04972dc (exception_exit)
sp =3D 0xc075ed10 fp =3D 0xc075ed68
r4 =3D 0xc04ef814 r5 =3D 0xc075edbc
r6 =3D 0xc04ed1f1 r7 =3D 0xc064c7d0
r8 =3D 0xc06648a0 r9 =3D 0xc066537c
r10 =3D 0xc064c630
exception_exit() at exception_exit
pc =3D 0xc04972dc lr =3D 0xc028d6d4 (kdb_enter+0x40)
sp =3D 0xc075ed60 fp =3D 0xc075ed68
r0 =3D 0xc065a2a4 r1 =3D 0x00000000
r2 =3D 0xc04f328a r3 =3D 0x000000ab
r4 =3D 0xc04ef814 r5 =3D 0xc075edbc
r6 =3D 0xc04ed1f1 r7 =3D 0xc064c7d0
r8 =3D 0xc06648a0 r9 =3D 0xc066537c
r10 =3D 0xc064c630 r12 =3D 0x00000000
$a() at $a
pc =3D 0xc028d6e4 lr =3D 0xc0256eb8 (vpanic+0xb4)
sp =3D 0xc075ed70 fp =3D 0xc075ed90
r4 =3D 0x00000100
vpanic() at vpanic+0xb4
pc =3D 0xc0256eb8 lr =3D 0xc0256df4 ($d)
sp =3D 0xc075ed98 fp =3D 0xc075edb0
r4 =3D 0xc064c6d0 r5 =3D 0xc04ed1f1
r6 =3D 0xc075edbc r7 =3D 0xc064c630
r8 =3D 0x00000000 r9 =3D 0x000007f3
r10 =3D 0x000007f7
$d() at $d
pc =3D 0xc0256df4 lr =3D 0xc0243240 (__mtx_lock_flags+0x134)
sp =3D 0xc075edc8 fp =3D 0xc075edf0
r4 =3D 0xc04df462 r5 =3D 0xc05a0f00
r6 =3D 0x000007f3 r7 =3D 0xc05a0f00
__mtx_lock_flags() at __mtx_lock_flags+0x134
pc =3D 0xc0243240 lr =3D 0xc0192008 (vt_resize+0x44)
sp =3D 0xc075edf8 fp =3D 0xc075ee18
r4 =3D 0xc05a0e90 r5 =3D 0xc05a0f00
r6 =3D 0xc04df462 r7 =3D 0xc05a0f50
r8 =3D 0x00000000
vt_resize() at vt_resize+0x44
pc =3D 0xc0192008 lr =3D 0xc0191f7c (vt_upgrade+0x38c)
sp =3D 0xc075ee20 fp =3D 0xc075ee88
r4 =3D 0x00000001 r5 =3D 0xc0664898
r6 =3D 0xc05a0e90 r7 =3D 0xc0523148
r8 =3D 0xc06650a4 r9 =3D 0xc06650a0
r10 =3D 0x00001bd6
vt_upgrade() at vt_upgrade+0x38c
pc =3D 0xc0191f7c lr =3D 0xc0205e14 (mi_startup+0x11c)
sp =3D 0xc075ee90 fp =3D 0xc075eea8
r4 =3D 0x00000001 r5 =3D 0xc0664898
r6 =3D 0x00000000 r7 =3D 0xc0523148
r8 =3D 0xc06650a4 r9 =3D 0xc06650a0
r10 =3D 0x00001bd6
mi_startup() at mi_startup+0x11c
pc =3D 0xc0205e14 lr =3D 0xc0100238 (virt_done+0x44)
sp =3D 0xc075eeb0 fp =3D 0x00000000
r4 =3D 0xc0100268 r5 =3D 0xc066c000
r6 =3D 0x02048740 r7 =3D 0x0010014c
r8 =3D 0x00000000 r9 =3D 0xc074d000
virt_done() at virt_done+0x44
pc =3D 0xc0100238 lr =3D 0xc0100238 (virt_done+0x44)
sp =3D 0xc075eeb0 fp =3D 0x00000000
Unable to unwind further
db>
On 12 May 2014, at 21:29, Aleksandr Rybalko <ray@freebsd.org> wrote:
> Author: ray
> Date: Mon May 12 19:29:38 2014
> New Revision: 265927
> URL: http://svnweb.freebsd.org/changeset/base/265927
>=20
> Log:
> Update terminal sizes in any case when new vt(4) driver arrive.
> (Plus remove one unused newline)
>=20
> Sponsored by: The FreeBSD Foundation
>=20
> Modified:
> head/sys/dev/vt/vt_core.c
>=20
> Modified: head/sys/dev/vt/vt_core.c
> =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
> --- head/sys/dev/vt/vt_core.c Mon May 12 19:11:39 2014 =
(r265926)
> +++ head/sys/dev/vt/vt_core.c Mon May 12 19:29:38 2014 =
(r265927)
> @@ -1981,8 +1981,11 @@ vt_upgrade(struct vt_device *vd)
> unsigned int i;
>=20
> /* Device didn't pass vd_init() or already upgraded. */
> - if (vd->vd_flags & (VDF_ASYNC|VDF_DEAD))
> + if (vd->vd_flags & (VDF_ASYNC|VDF_DEAD)) {
> + /* Refill settings with new sizes anyway. */
> + vt_resize(vd);
> return;
> + }
> vd->vd_flags |=3D VDF_ASYNC;
>=20
> for (i =3D 0; i < VT_MAXWINDOWS; i++) {
> @@ -2019,7 +2022,6 @@ vt_upgrade(struct vt_device *vd)
>=20
> /* Refill settings with new sizes. */
> vt_resize(vd);
> -
> }
>=20
> static void
>=20
>=20
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