Hi,
I'm having some problems with my dual SparcServer 20. While
doing a chmod() in /dev (while booting), it gives the following oops.
The strange thing is : if I boot with console=/dev/ttyS1 ,
with /dev/console being a symlink to /dev/ttyS0, the oops doesn't
happen (but I don't get kernel messages, not even on ttyS1)
The kernel was compiled with 2.95.2 (debian potato).
This oops is 100% reproducible.
I also get semi-random lockups (probably) during disk-io.
I had (probably) the same problem with 2.2.14.
Frank
ksymoops 2.3.4 on sparc 2.2.20. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.2.20/ (default)
-m /boot/System.map-2.2.20 (default)
Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.
No modules in ksyms, skipping objects
Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid lsmod file?
Warning (compare_maps): ksyms_base symbol module_list_R__ver_module_list not found in System.map. Ignoring ksyms_base entry
Unable to handle kernel NULL pointer dereference<1>tsk->mm->context = 00000059
tsk->mm->pgd = f7bb3000
"@'/ ,. \`@"
/_| \__/ |_\
\__U_/
chmod(97): Oops
PSR: 401000c4 PC: f005d51c NPC: f005d520 Y: 1b000000
Using defaults from ksymoops -t elf32-sparc -a sparc
g0: f007a4f8 g1: f03c49b0 g2: 00000000 g3: 000000a0 g4: f004de20 g5: f01b8265 g6: f798a000 g7: 00000014
o0: 00000000 o1: 00000900 o2: 00001000 o3: 000000c9 o4: f7e25600 o5: 00000014 sp: f798bc18 o7: f0079c94
l0: 00000000 l1: f7e25600 l2: 00000000 l3: f0409b3c l4: 00000008 l5: f01b8265 l6: f798a000 l7: f0052a84
i0: 00000000 i1: 000242ab i2: f01f3cd8 i3: 00000000 i4: 00000000 i5: 0000b700 fp: f798bc80 i7: f005d974
Caller[f005d974]
Caller[f005d9d8]
Caller[f007bb38]
Caller[f0055230]
Caller[f0055638]
Caller[f0055744]
Caller[f0052ab8]
Caller[f00154bc]
Caller[f00c36b4]
Instruction DUMP: 02800017 b0102000 b0100010 <d0062068> 80a20011 32bffffa e0040000 d0062018 80a20019
>>PC; f005d51c <find_inode+20/78> <=====
>>O7; f0079c94 <inode_getblk+68/294>
>>I7; f005d974 <iget4+50/a4>
Trace; f005d974 <iget4+50/a4>
Trace; f005d9d8 <iget+10/20>
Trace; f007bb38 <ext2_lookup+78/ac>
Trace; f0055230 <real_lookup+6c/100>
Trace; f0055638 <lookup_dentry+2ac/398>
Trace; f0055744 <__namei+20/68>
Trace; f0052ab8 <sys_newlstat+34/c8>
Trace; f00154bc <syscall_is_too_hard+34/40>
Trace; f00c36b4 <nlm_lookup_file+18c/248>
Code; f005d510 <find_inode+14/78>
0000000000000000 <_PC>:
Code; f005d510 <find_inode+14/78>
0: 02 80 00 17 be 5c <_PC+0x5c> f005d56c <find_inode+70/78>
Code; f005d514 <find_inode+18/78>
4: b0 10 20 00 clr %i0
Code; f005d518 <find_inode+1c/78>
8: b0 10 00 10 mov %l0, %i0
Code; f005d51c <find_inode+20/78> <=====
c: d0 06 20 68 ld [ %i0 + 0x68 ], %o0 <=====
Code; f005d520 <find_inode+24/78>
10: 80 a2 00 11 cmp %o0, %l1
Code; f005d524 <find_inode+28/78>
14: 32 bf ff fa bne,a fffffffffffffffc <_PC+0xfffffffffffffffc> f005d50c <find_inode+10/78>
Code; f005d528 <find_inode+2c/78>
18: e0 04 00 00 ld [ %l0 ], %l0
Code; f005d52c <find_inode+30/78>
1c: d0 06 20 18 ld [ %i0 + 0x18 ], %o0
Code; f005d530 <find_inode+34/78>
20: 80 a2 00 19 cmp %o0, %i1
3 warnings issued. Results may not be reliable.
> > > OK. If I can get my cpio file down to reasonable size, and still crash the
> > > system, I'll put it online and send you an URL.
> > Oook.
> http://www.xs4all.be/~gevaerts/ca.cpio.gz
> (+- 1.5 MB, 26 MB uncompressed)
> (contains one postscript file of some calvin & hobbes strips)
> cat ca.cpio.gz|gunzip|cpio -ivmd
> hangs my system reliably.
kala@louise:/ap/tmp/t$ wget -q http://www.xs4all.be/~gevaerts/ca.cpio.gz
kala@louise:/ap/tmp/t$ ls -l
total 1476
-rw-r--r-- 1 kala users 1503405 Apr 29 22:27 ca.cpio.gz
kala@louise:/ap/tmp/t$ time cat ca.cpio.gz| gunzip| cpio -ivmd
cpio: warning: archive header has reverse byte-order
ch.ps
50867 blocks
real 0m18.468s
user 0m8.330s
sys 0m17.060s
kala@louise:/ap/tmp/t$ ls -la
total 26952
drwxr-xr-x 2 kala users 4096 Apr 29 23:10 ./
drwxrwxrwt 3 root root 4096 Apr 29 23:08 ../
-rw-r--r-- 1 kala users 1503405 Apr 29 22:27 ca.cpio.gz
-rw-rw-r-- 1 kala users 26043638 Jan 29 22:05 ch.ps
hmmmmm.
what now?
T.
--
"hello it's not like i read my mail so that you have where to offer to sell me
a giant turnip or anything else thankyou." -tomas szepe <[email protected]>