Hi,
I have an MPC860 system, 16M flash, 16M SDRAM, no disk, just kernel
support for ramdisk. root fs is nfs mounted.
I get messages like the one bellow:
swap_dup: Bad swap file entry 00480020
VM: killing process chat
swap_free: Bad swap file entry 00480020
and after a while a get an oops:
Oops: kernel access of bad area, sig: 11
NIP: C0045154 XER: 20000000 LR: C0045464 SP: C0CBBE60 REGS: c0cbbdb0
TRAP: 0300 Not tainted
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 00E9A01C, DSISR: C0000000
TASK = c0cba000[36] 'pppd' Last syscall: 142
last math 00000000 last altivec 00000000
GPR00: C0045464 C0CBBE60 C0CBA000 C0CBBE88 C01DE8C0 00000000 C010E2B8
0000001F
GPR08: C0CBA000 00000000 C0C4E03C 00000001 84444448 100B0C5C 10040000
10040000
GPR16: 10040000 10040000 10040000 10040000 C0CBBEF8 00000000 00000001
7FFFFFFF
GPR24: 00000004 00000001 00000145 C0CBBED8 00000004 C0E9A000 C0E9A008
00E9A008
Call backtrace:
C0087D84 C0045464 C0045858 C0009448 C00041DC 1001DB84 10006F24
10006A8C 0FE4BDA0 00000000
At the time of swap messages i was running a proprietary driver, my
application and few daemons.
ps
PID Uid VmSize Stat Command
1 root 584 S init
2 root SW [keventd]
3 root SWN [ksoftirqd_CPU0]
4 root SW [kswapd]
5 root SW [bdflush]
6 root SW [kupdated]
7 root SW [rpciod]
9 root 760 S -ash
21 root 616 S sectionmond
22 root 608 S sectionmond
23 root 608 S sectionmond
24 root 608 S sectionmond
25 root 612 S sectionmond
26 root 608 S sectionmond
30 root 1304 S /ppcnetsnmp/sbin/snmpd
39 root 916 S pppd /dev/ttyS1 19200 defaultroute demand idle
5 192.
109 root 680 R ps
I look on the net for some clues but it's quite confusing, i noticed
many emails on swap_dup/swap_free error messages but i couldn't figure
out what should i search for.
I tested the ram with mtest from pppboot2.0.
Has any of you an idea what is all about?
Thank you
Bogdan
