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SubjectRe: 2.4.0-test12-pre4 boot failure (better than pre3 and lower)
> Most architectures dump their code as a string of bytes and print the
> code after the registers and trace back. Alpha dumps the code before
> the trace and also decodes the instructions which really confuses
> ksymoops. Somebody changed 'Trace: ' to 'Trace:' between 2.2 and 2.4
> kernels so ksymoops no longer picks the trace data.
>
> Is there any chance of changing arch/alpha/kernel/traps.c to print
> registers, trace and _raw_ code, in that order so it is more like other
> architectures? You can print the decoded instructions as well (prefix
> Decode:, not Code:) as long as the raw code bytes are also available.
>
> In the meantime, this patch to ksymoops 2.3.5 will pick up the change
> to the trace lines. It will still complain about a bad code line,
> ksymoops is built for raw data.

Didn't help much:
[wakko@kakarot:/home/wakko/ksymoops-2.3.4] ./ksymoops -v /usr/src/2.4.0-test12-pre4/vmlinux -K -L -O -m /usr/src/2.4.0-test12-pre4/System.map < /rod/home/wakko/240t12p4-boot
ksymoops 2.3.4 on alpha 2.2.17-LVM-RAID. Options used
-v /usr/src/2.4.0-test12-pre4/vmlinux (specified)
-K (specified)
-L (specified)
-O (specified)
-m /usr/src/2.4.0-test12-pre4/System.map (specified)

Unable to handle kernel paging request at virtual address 0000000000000010
swapper(53): Oops 0
pc = [<fffffc0000323270>] ra = [<fffffc0000323658>] ps = 0000
Using defaults from ksymoops -t elf64-alpha -a alpha
v0 = 0000000000000000 t0 = 0000000000000012 t1 = fffffc0000485748
t2 = fffffc0009f5c560 t3 = fffffc000046cfb0 t4 = 0000000000000000
t5 = fffffffffffffffe t6 = ffffffffffffffff t7 = fffffc0009e00000
s0 = fffffc0000323600 s1 = 0000000000000000 s2 = fffffc0009f5c560
s3 = fffffc0009f5c560 s4 = fffffc0009eb0ac0 s5 = fffffc0009eb0ac0
s6 = fffffc0009eb0ac0
a0 = fffffc00004870c8 a1 = fffffc0009e00050 a2 = fffffc00004871c8
a3 = 0000000000000000 a4 = 0000000000000001 a5 = 0000000000000000
t8 = 0000000000000001 t9 = 0000000000000003 t10= 0000000000000004
t11= 0000000000000010 pv = fffffc0000323600 at = 0000000000000000
gp = fffffc00004a3f58 sp = fffffc0009dffee0
Code: 40203001 addl t0,1,t0
Warning (Oops_code): trailing garbage ignored on Code: line
Text: 'Code: 40203001 addl t0,1,t0'
Garbage: 'l t0,1,t0'
Error (Oops_code_values): invalid value 0xadd in Code line, must be 2, 4, 8 or 16 digits, value ignored

>>PC; fffffc0000323270 <exec_usermodehelper+f0/480> <=====
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0000000000000000 <_PC>:
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0: 01 30 20 40 addl t0,0x1,t0

b82b0000 stl_c t0,0(s2)
e42001fe blt t0,.+2044
b57e0148 stq s2,328(sp)
a5480428 ldq s1,1064(t7)
a0220008 ldl t0,8(t1)
a52a0028 ldq s0,40(s1)
Trace:323658 323600
Unable to handle kernel paging request at virtual address 0000000000000010
swapper(54): Oops 0
pc = [<fffffc0000323270>] ra = [<fffffc0000323658>] ps = 0000
v0 = 0000000000000000 t0 = 0000000000000012 t1 = fffffc0000485748
t2 = fffffc0009f5c560 t3 = fffffc000046cfb0 t4 = 0000000000000000
t5 = fffffffffffffffe t6 = ffffffffffffffff t7 = fffffc0009e00000
s0 = fffffc0000323600 s1 = 0000000000000000 s2 = fffffc0009f5c560
s3 = fffffc0009f5c560 s4 = fffffc0009eb0ac0 s5 = fffffc0009eb0ac0
s6 = fffffc0009eb0ac0
a0 = fffffc00004870c8 a1 = fffffc0009e00050 a2 = fffffc00004871c8
a3 = 0000000000000000 a4 = 0000000000000001 a5 = 0000000000000000
t8 = 0000000000000001 t9 = 0000000000000003 t10= 0000000000000004
t11= 0000000000000010 pv = fffffc0000323600 at = 0000000000000000
gp = fffffc00004a3f58 sp = fffffc0009dffee0
Code: 40203001 addl t0,1,t0
Warning (Oops_code): trailing garbage ignored on Code: line
Text: 'Code: 40203001 addl t0,1,t0'
Garbage: 'l t0,1,t0'
Error (Oops_code_values): invalid value 0xadd in Code line, must be 2, 4, 8 or 16 digits, value ignored

Trace; 0000000000323658 Before first symbol
Trace; 0000000000323600 Before first symbol
>>PC; fffffc0000323270 <exec_usermodehelper+f0/480> <=====
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0000000000000000 <_PC>:
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0: 01 30 20 40 addl t0,0x1,t0

b82b0000 stl_c t0,0(s2)
e42001fe blt t0,.+2044
b57e0148 stq s2,328(sp)
a5480428 ldq s1,1064(t7)
a0220008 ldl t0,8(t1)
a52a0028 ldq s0,40(s1)
Trace:323658 323600
Unable to handle kernel paging request at virtual address 0000000000000010
swapper(56): Oops 0
pc = [<fffffc0000323270>] ra = [<fffffc0000323658>] ps = 0000
v0 = 0000000000000000 t0 = 0000000000000012 t1 = fffffc0000485748
t2 = fffffc0009f5c560 t3 = fffffc000046cfb0 t4 = 0000000000000000
t5 = fffffffffffffffe t6 = ffffffffffffffff t7 = fffffc0009e00000
s0 = fffffc0000323600 s1 = 0000000000000000 s2 = fffffc0009f5c560
s3 = fffffc0009f5c560 s4 = fffffc0009eb0ac0 s5 = fffffc0009eb0ac0
s6 = fffffc0009eb0ac0
a0 = fffffc00004870c8 a1 = fffffc0009e00050 a2 = fffffc00004871c8
a3 = 0000000000000000 a4 = 0000000000000001 a5 = 0000000000000000
t8 = 0000000000000001 t9 = 0000000000000003 t10= 0000000000000004
t11= 0000000000000010 pv = fffffc0000323600 at = 0000000000000000
gp = fffffc00004a3f58 sp = fffffc0009dffee0
Code: 40203001 addl t0,1,t0
Warning (Oops_code): trailing garbage ignored on Code: line
Text: 'Code: 40203001 addl t0,1,t0'
Garbage: 'l t0,1,t0'
Error (Oops_code_values): invalid value 0xadd in Code line, must be 2, 4, 8 or 16 digits, value ignored

Trace; 0000000000323658 Before first symbol
Trace; 0000000000323600 Before first symbol
>>PC; fffffc0000323270 <exec_usermodehelper+f0/480> <=====
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0000000000000000 <_PC>:
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0: 01 30 20 40 addl t0,0x1,t0

b82b0000 stl_c t0,0(s2)
e42001fe blt t0,.+2044
b57e0148 stq s2,328(sp)
a5480428 ldq s1,1064(t7)
a0220008 ldl t0,8(t1)
a52a0028 ldq s0,40(s1)
Trace:323658 323600
Unable to handle kernel paging request at virtual address 0000000000000010
swapper(57): Oops 0
pc = [<fffffc0000323270>] ra = [<fffffc0000323658>] ps = 0000
v0 = 0000000000000000 t0 = 0000000000000012 t1 = fffffc0000485748
t2 = fffffc0009f5c560 t3 = fffffc000046cfb0 t4 = 0000000000000000
t5 = fffffffffffffffe t6 = ffffffffffffffff t7 = fffffc0009e00000
s0 = fffffc0000323600 s1 = 0000000000000000 s2 = fffffc0009f5c560
s3 = fffffc0009f5c560 s4 = fffffc0009eb0ac0 s5 = fffffc0009eb0ac0
s6 = fffffc0009eb0ac0
a0 = fffffc00004870c8 a1 = fffffc0009e00050 a2 = fffffc00004871c8
a3 = 0000000000000000 a4 = 0000000000000001 a5 = 0000000000000000
t8 = 0000000000000001 t9 = 0000000000000003 t10= 0000000000000004
t11= 0000000000000010 pv = fffffc0000323600 at = 0000000000000000
gp = fffffc00004a3f58 sp = fffffc0009dffee0
Code: 40203001 addl t0,1,t0
Warning (Oops_code): trailing garbage ignored on Code: line
Text: 'Code: 40203001 addl t0,1,t0'
Garbage: 'l t0,1,t0'
Error (Oops_code_values): invalid value 0xadd in Code line, must be 2, 4, 8 or 16 digits, value ignored

Trace; 0000000000323658 Before first symbol
Trace; 0000000000323600 Before first symbol
>>PC; fffffc0000323270 <exec_usermodehelper+f0/480> <=====
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0000000000000000 <_PC>:
Code; fffffc0000323270 <exec_usermodehelper+f0/480>
0: 01 30 20 40 addl t0,0x1,t0

b82b0000 stl_c t0,0(s2)
e42001fe blt t0,.+2044
b57e0148 stq s2,328(sp)
a5480428 ldq s1,1064(t7)
a0220008 ldl t0,8(t1)
a52a0028 ldq s0,40(s1)
Trace:323658 323600
Warning (Oops_read): Code line not seen, dumping what data is available

Trace; 0000000000323658 Before first symbol
Trace; 0000000000323600 Before first symbol


5 warnings and 4 errors issued. Results may not be reliable.
[wakko@kakarot:/home/wakko/ksymoops-2.3.4]
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