Date: Thu, 20 Nov 2003 03:18:55 +0100 From: Pav Lucistnik <pav@FreeBSD.org> To: freebsd-current@FreeBSD.org Subject: GEOM CD panic reloaded Message-ID: <1069294734.717.5.camel@hood.oook.cz>
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Hi, GEOM still panics when you insert second CD with non-data tracks,
even with phk's and sos's fixes. Both kernel and world are from Nov 20
0100 UTC
uname -a
FreeBSD hood.oook.cz 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Thu Nov 20
02:59:56 CET 2003 =20
Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address =3D 0x1c
fault code =3D supervisor read, page not present
instruction pointer =3D 0x8:0xc05a5e53
stack pointer =3D 0x10:0xde007c68
frame pointer =3D 0x10:0xde007c80
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 2 (g_event)
trap number =3D 12
panic: page fault
cpuid =3D 0;=20
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1 0xc05886d1 in boot (howto=3D256) at /usr/src/sys/kern/kern_shutdown.c:3=
72
#2 0xc0588b1f in panic () at /usr/src/sys/kern/kern_shutdown.c:550
#3 0xc070b846 in trap_fatal (frame=3D0xde007c28, eva=3D0) at /usr/src/sys/=
i386/i386/trap.c:821
#4 0xc070b4c2 in trap_pfault (frame=3D0xde007c28, usermode=3D0, eva=3D28) =
at /usr/src/sys/i386/i386/trap.c:735
#5 0xc070b01d in trap (frame=3D
{tf_fs =3D 24, tf_es =3D 16, tf_ds =3D 16, tf_edi =3D 0, tf_esi =3D -=
969426560, tf_ebp =3D -570393472, tf_isp =3D -570393516, tf_ebx =3D -970579=
488, tf_edx =3D 0, tf_ecx =3D -1065553212, tf_eax =3D 1, tf_trapno =3D 12, =
tf_err =3D 0, tf_eip =3D -1067819437, tf_cs =3D 8, tf_eflags =3D 66051, tf_=
esp =3D -968736384, tf_ss =3D -570393448}) at /usr/src/sys/i386/i386/trap.c=
:420
#6 0xc06f6ff8 in calltrap () at {standard input}:94
#7 0xc054ece8 in g_destroy_provider (pp=3D0xc62621e0) at /usr/src/sys/geom=
/geom_subr.c:426
#8 0xc054bc95 in g_orphan_register (pp=3D0xc637b980) at /usr/src/sys/geom/=
geom_event.c:143
#9 0xc054bdbc in one_event () at /usr/src/sys/geom/geom_event.c:169
#10 0xc054bfe5 in g_run_events () at /usr/src/sys/geom/geom_event.c:202
#11 0xc054d015 in g_event_procbody () at /usr/src/sys/geom/geom_kern.c:134
#12 0xc0570f60 in fork_exit (callout=3D0xc054cff0 <g_event_procbody>, arg=
=3D0x0, frame=3D0x0) at /usr/src/sys/kern/kern_fork.c:793
(kgdb) up 7
#7 0xc054ece8 in g_destroy_provider (pp=3D0xc62621e0) at /usr/src/sys/geom=
/geom_subr.c:426
426 devstat_remove_entry(pp->stat);
(kgdb) print *pp
$1 =3D {name =3D 0x0, provider =3D {le_next =3D 0x0, le_prev =3D 0x0}, geom=
=3D 0x0, consumers =3D {lh_first =3D 0x0}, acr =3D 0, acw =3D 0, ace =3D 0=
, error =3D 0, orphan =3D {tqe_next =3D 0x0, tqe_prev =3D 0x0}, index =3D 0=
,=20
mediasize =3D 0, sectorsize =3D 0, stripesize =3D 0, stripeoffset =3D 0, =
stat =3D 0x0, nstart =3D 0, nend =3D 0, flags =3D 0}
(kgdb) print *gp
$4 =3D {name =3D 0xc6219af0 "acd0", class =3D 0xc077aaa0, geom =3D {le_next=
=3D 0x0, le_prev =3D 0xc077aac4}, consumer =3D {lh_first =3D 0x0}, provide=
r =3D {lh_first =3D 0xc6424580}, geoms =3D {tqe_next =3D 0xc637bc00,=20
tqe_prev =3D 0xc236bc98}, rank =3D 1, start =3D 0xc0494fb0 <acd_geom_st=
art>, spoiled =3D 0, dumpconf =3D 0, access =3D 0xc0493fc0 <acd_geom_access=
>, orphan =3D 0, ioctl =3D 0xc0494230 <acd_geom_ioctl>,=20
softc =3D 0xc6253800, flags =3D 0}
(kgdb) up
#8 0xc054bc95 in g_orphan_register (pp=3D0xc637b980) at /usr/src/sys/geom/=
geom_event.c:143
143 g_destroy_provider(pp);
(kgdb) print *pp
$5 =3D {name =3D 0xc6219af0 "acd0", provider =3D {le_next =3D 0xc077aaa0, l=
e_prev =3D 0x0}, geom =3D 0xc077aac4, consumers =3D {lh_first =3D 0x0}, acr=
=3D -968735360, acw =3D -969425920, ace =3D -1036600168, error =3D 1,=20
orphan =3D {tqe_next =3D 0xc0494fb0, tqe_prev =3D 0x0}, index =3D 0, medi=
asize =3D 3226025920, sectorsize =3D 3226026544, stripesize =3D 3324327936,=
stripeoffset =3D 0, stat =3D 0x0, nstart =3D 0, nend =3D 0, flags =3D 0}
This looks painfully similar to panic I was reporting on Nov 10.
How to reproduce:
1. Insert non-data CD like VideoCD
2. cdcontrol -f /dev/acd0 info
3. Play it (mplayer -vcd 2)
4. Insert ordinary data CD
5. cdcontrol -f /dev/acd0 info
It prints correct information of new CD and instantly panics.
--=20
Pav Lucistnik <pav@FreeBSD.org>
<pav@oook.cz>
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