Subject: port-amiga/29020: pmap panic 2: pmap_remove_mapping: ptste == NULL
To: None <port-amiga-maintainer@netbsd.org, gnats-admin@netbsd.org,>
From: S.P.Zeidler <spz@serpens.de>
List: netbsd-bugs
Date: 01/20/2005 12:22:00
>Number: 29020
>Category: port-amiga
>Synopsis: pmap panic full mfs
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: port-amiga-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu Jan 20 12:22:00 +0000 2005
>Originator: S.P.Zeidler
>Release: NetBSD 2.0
>Organization:
dis-
>Environment:
System: NetBSD serpens.de 2.0 NetBSD 2.0 (SERPENS) #0: Sun Dec 26 10:47:05 CET 2004 spz@aquila:/home/netbsd/obj.amiga/sys/arch/amiga/compile/SERPENS amiga
Architecture: m68k
Machine: amiga
>Description:
the mfs /tmp filled up in /etc/daily before the panic:
Jan 15 04:16:41 serpens /netbsd: uid 32767, pid 14995, command find, on /tmp: file system full
Jan 15 04:16:42 serpens /netbsd: uid 0, pid 12916, command join, on /tmp: file system full
panic: pmap_remove_mapping: ptste == NULL
Stopped in pid 21922.1 (sh) at netbsd:cpu_Debugger+0x6: unlk a6
db> call_sicallback: 48312 more dynamic structures 48340 total
trace
cpu_Debugger(485b,20506000,4d9fcbc,4d9fcc0,17d70e) + 6
panic(1be0e3,dffe000,e000000,1,20000) + f8
pmap_remove_mapping(516580,dffe000,20507ffc,1) + 57a
pmap_remove(516580,dfe0000,e000000) + da
uvm_unmap_remove(4aaf050,0,e000000,4d9fd54) + d6
uvm_unmap(4aaf050,0,e000000) + 92
uvmspace_exec(4ab0e80,0,e000000,592fb28,1) + 68
sys_execve(4ab0e80,4d9ff44,4d9ff3c) + 3ec
syscall_plain(3b,4ab0e80,4d9ffb4,38194,38194) + 80
syscall(3b) + 4e
trap0() + e
db> show registers
d0 0x2700 start+0x236
d1 0x8
d2 0x100
d3 0x1be0e3 mem_cdevsw+0x21f
d4 0xb9da000 emul_netbsd_aoutm68k_object+0xb7a45ec
d5 0xdffe000 emul_netbsd_aoutm68k_object+0xddc85ec
d6 0x18
d7 0x24
a0 0x29e000 emul_netbsd_aoutm68k_object+0x685ec
a1 0
a2 0xebfec printf
a3 0x516580 emul_netbsd_aoutm68k_object+0x2e0b6c
a4 0x233f14 vm_physmem+0x4
a5 0x131e84 uvm_rb_subtree_space
a6 0x4d9fc60 emul_netbsd_aoutm68k_object+0x4b6a24c
sp 0xdfff7b4 emul_netbsd_aoutm68k_object+0xddc9da0
pc 0x14297c cpu_Debugger+0x6
sr 0x2000
netbsd:cpu_Debugger+0x6: unlk a6
>How-To-Repeat:
busy system plus mfs /tmp filling up
>Fix: