Subject: port-dreamcast/26569: Panic running regress/sys/kern/umount
To: None <gnats-bugs@gnats.NetBSD.org>
From: None <skrll@netbsd.org>
List: netbsd-bugs
Date: 08/06/2004 10:09:35
>Number: 26569
>Category: port-dreamcast
>Synopsis: Panic running regress/sys/kern/umount
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: port-dreamcast-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Aug 06 12:34:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator: Nick Hudson
>Release: NetBSD 2.0G
>Organization:
Nope
>Environment:
NetBSD dc 2.0G NetBSD 2.0G (DC) #0: Tue Jul 27 12:29:09 BST 2004 nick@arthur:/usr/obj/dreamcast/usr/src/sys/arch/dreamcast/compile/DC dreamcast
>Description:
tlb_handler panic on NetBSD/dreamcast
vnd0: no disk label
vnd0: no disk label
panic: tlb_handler: invalid user-space access from kernel mode va=0x00000000, ssr=0x400000f0, spc=0x8c1077ee lwp=0x8c2ebe10 onfault=0x0
Stopped in pid 2736.1 (disklabel) at 0x8c10433a: mov r14, r15
db>
db> show registers
r0 0xf0
r1 0x8c104334
r2 0x88c
r3 0x8c1ae000
r4 0x400000f1
r5 0xd
r6 0
r7 0
r8 0x8c0b84a4
r9 0x8c142d54
r10 0
r11 0x100
r12 0
r13 0x8cfee5a0
r14 0xc2399a34
r15 0xc2399a34
pr 0x8c0b7bcc
spc 0x8c10433a
ssr 0x400000f0
mach 0
macl 0
8c1077d8 <pmap_extract>:
8c1077d8: 86 2f mov.l r8,@-r15
8c1077da: 96 2f mov.l r9,@-r15
8c1077dc: e6 2f mov.l r14,@-r15
8c1077de: 22 4f sts.l pr,@-r15
8c1077e0: f3 6e mov r15,r14
8c1077e2: 53 68 mov r5,r8
8c1077e4: 0d d0 mov.l 8c10781c <pmap_extract+0x44>,r0 ! 0x8c107d68
8c1077e6: 0b 40 jsr @r0
8c1077e8: 63 69 mov r6,r9
8c1077ea: 08 20 tst r0,r0
8c1077ec: 03 89 bt 8c1077f6 <pmap_extract+0x1e>
8c1077ee: 02 61 mov.l @r0,r1
>How-To-Repeat:
Run regress/sys/kern/umount
>Fix:
No
>Release-Note:
>Audit-Trail:
>Unformatted: