Erik Forsberg writes:
> Nikita Danilov <[EMAIL PROTECTED]> writes:
>
> >
> > Can you please try to run /usr/sbin/ksymoops on oops traceback
> > above. I am not sure that ksymoops can handle Alpha traceback, though.
>
> Hmm..
>
> Ksymoops is available on the platform, but I'm not entirely sure my
> Oops is correctly formatted, because the output looks like this:
(Just to double-check: you have ran ksymoops on Alpha, right?)
>
> --snip--
> lanfear:forsberg ~ % ksymoops -m /usr/src/linux/System.map ksymoops.alpha.reiser
> ksymoops 2.4.1 on alpha 2.4.6. Options used
> -V (default)
> -k /proc/ksyms (default)
> -l /proc/modules (default)
> -o /lib/modules/2.4.6/ (default)
> -m /usr/src/linux/System.map (specified)
>
> No modules in ksyms, skipping objects
> Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid lsmod file?
> Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says
>fffffc00004ad420, System.map says fffffc000037e8c0. Ignoring ksyms_base entry
> Unable to handle kernel paging request at virtual address 3ffffc00b7c86020
> bonnie++(380): Oops 0
> pc = [<fffffc00004aa260>] ra = [<fffffc00004aa4c0>] ps = 0000
> Using defaults from ksymoops -t elf64-alpha -a alpha
> v0 = 00000000001c0540 t0 = 0000000000000000 t1 = 00000000001ab018
> t2 = 3ffffc00b7c86040 t3 = 3ffffc00b7c86020 t4 = 0000000000000001
> t5 = 3ffffc00b7c86018 t6 = 0000000000000002 t7 = fffffc0005408000
> s0 = fffffc0007b9d8e8 s1 = 0000000000000900 s2 = fffffc0006f4a000
> s3 = fffffc000676b300 s4 = fffffc0007b9d8c0 s5 = 0000000000000000
> s6 = fffffc000709aea0
> a0 = fffffc0006f4a000 a1 = fffffc000676b300 a2 = 0000000000000000
> a3 = 0000000000000001 a4 = 0000000000000008 a5 = fffffc0006f4a018
> t8 = 0000000000000024 t9 = 40000000b0d3c024 t10= 00000000001ab018
> t11= fffffc0006f4a020 pv = fffffc000051e320 at = fffffc0006f4a01c
> gp = fffffc00005ef2b0 sp = fffffc000540bc08
> Code: 42f50406 addq t9,a5,t5
> Warning (Oops_code): trailing garbage ignored on Code: line
> Text: 'Code: 42f50406 addq t9,a5,t5'
> Garbage: 'q t9,a5,t5'
> Error (Oops_code_values): invalid value 0xadd in Code line, must be 2, 4, 8 or 16
>digits, value ignored
>
> >>PC; fffffc00004aa260 <raid1_read_balance+180/200> <=====
> Code; fffffc00004aa260 <raid1_read_balance+180/200>
> 0000000000000000 <_PC>:
> Code; fffffc00004aa260 <raid1_read_balance+180/200>
> 0: 06 04 f5 42 addq t9,a5,t5
>
> a0f003d8 ldl t6,984(a0)
> 42fc0403 addq t9,at,t2
> 42f90404 addq t9,t11,t3
> 40849524 subq t3,36,t3
> 40c49526 subq t5,36,t5
> 40649523 subq t2,36,t2
> Trace:4ad110 351644 436464 436540 350a40 3527f8 3dc8e0 34684c 346a0c 3468c8 3d74e0
>33a99c 33acd4 33b21c 33b140 34dd2c 310da0
> Warning (Oops_read): Code line not seen, dumping what data is available
>
> Trace; 00000000004ad110 Before first symbol
> Trace; 0000000000351644 Before first symbol
> Trace; 0000000000436464 Before first symbol
> Trace; 0000000000436540 Before first symbol
> Trace; 0000000000350a40 Before first symbol
> Trace; 00000000003527f8 Before first symbol
> Trace; 00000000003dc8e0 Before first symbol
> Trace; 000000000034684c Before first symbol
> Trace; 0000000000346a0c Before first symbol
> Trace; 00000000003468c8 Before first symbol
> Trace; 00000000003d74e0 Before first symbol
> Trace; 000000000033a99c Before first symbol
> Trace; 000000000033acd4 Before first symbol
> Trace; 000000000033b21c Before first symbol
> Trace; 000000000033b140 Before first symbol
> Trace; 000000000034dd2c Before first symbol
> Trace; 0000000000310da0 Before first symbol
>
>
> 4 warnings and 1 error issued. Results may not be reliable.
> --snap--
>
> The "Code line not seen.." line doesn't sound good to me.
Well, then, if you still courageous enough, do it hard manual way: take
each address from the traceback: 4ad110 351644 436464 436540 350a40
3527f8 3dc8e0 34684c 346a0c 3468c8 3d74e0 33a99c 33acd4 33b21c 33b140
34dd2c 310da0, and check by /proc/ksyms what function this address is
in. All kernel addresses have the same "prefix" part (fffffc0000),
prepend it to an address from traceback and search in the /proc/ksyms
greatest address less than result.
This doesn't look at the most interesting work on the Earth, yes.
>
> \EF
> --
> Erik Forsberg http://www.lysator.liu.se/~forsberg/
> GPG/PGP Key: 1024D/0BAC89D9 <[EMAIL PROTECTED]>
> Key Fingerprint: B308 87FC 566E 825A 5ABC 247C AC9B AB14 0BAC 89D9
Nikita.
