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SubjectIBM Model 350 does not like 2.4
Hi All,

I have 10 systems running 2.4 that are rock solid, but I have
1 system that has problems with 2.4. The box had run perfectly
for 46 days with 2.2.19pre2, and today I installed 2.4.1-ac3
to see how it would go. It seemed to run fine for a few minutes,
then the old problem reasserted itself:

"df" gives a segmentation fault:

iron: /root
(tty/dev/pts/0): bash: 1040 > df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/hda1 1007960 457996 498760 48% /
/dev/hda3 1198496 1082264 55352 96% /usr
Segmentation fault

Initial look at the oops implicates the sunrpc code.

This is Red Hat 7.0 with all updates applied running on a
humble pentium 166 (IBM model 350). The identical oops
occurs whether the kernel is compiled with kgcc or gcc-2.96 .

Hope this helps,

jjs

decoded ksymoops follows:

ksymoops 2.3.4 on i586 2.4.1-ac3. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.1-ac3/ (default)
-m /boot/System.map (specified)

Warning (compare_maps): ksyms_base symbol __VERSIONED_SYMBOL(shmem_file_setup) not found in System.map. Ignoring ksyms_base entry
Unable to handle kernel paging request at virtual address feff3112
c482dab4
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c482dab4>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: feff310a ebx: feff310a ecx: 00000000 edx: c36c5b20
esi: c36ef610 edi: c36c5b20 ebp: 00000000 esp: c1d31d14
ds: 0018 es: 0018 ss: 0018
Process df (pid: 1305, stackpage=c1d31000)
Stack: 08040016 c08c7300 40000000 c01b291e 00000000 c36c5b20 c36c5b20 c482db9a
c36c5b20 c1d31da0 c36c5b20 c1d31dd4 c1d31d98 c482dc9f c36c5b20 00000000
c1d31da0 c1d31e80 c482951a c1d31da0 00000000 c1d31da0 c36efc10 c482940c
Call Trace: [<c01b291e>] [<c482db9a>] [<c482dc9f>] [<c482951a>] [<c482940c>] [<c482bfc0>] [<c485f4a8>]
[<c01e177a>] [<c4858aef>] [<c012c0da>] [<c012c125>] [<c0108e0b>]
Code: 66 83 7b 08 00 75 15 a1 68 2a 29 c0 39 43 04 79 0b 8b 03 89

>>EIP; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0> <=====
Trace; c01b291e <net_tx_action+96/a4>
Trace; c482db9a <[sunrpc]rpcauth_lookup_credcache+36/8c>
Trace; c482dc9f <[sunrpc]rpcauth_bindcred+3b/54>
Trace; c482951a <[sunrpc]rpc_call_setup+36/64>
Trace; c482940c <[sunrpc]rpc_call_sync+64/9c>
Trace; c482bfc0 <[sunrpc]rpc_run_timer+0/44>
Trace; c485f4a8 <[nfs]nfs_proc_statfs+58/7c>
Trace; c01e177a <vsprintf+306/334>
Trace; c4858aef <[nfs]nfs_statfs+33/180>
Trace; c012c0da <vfs_statfs+3a/40>
Trace; c012c125 <sys_statfs+45/f4>
Trace; c0108e0b <system_call+33/38>
Code; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0>
00000000 <_EIP>:
Code; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0> <=====
0: 66 83 7b 08 00 cmpw $0x0,0x8(%ebx) <=====
Code; c482dab9 <[sunrpc]rpcauth_gc_credcache+31/b0>
5: 75 15 jne 1c <_EIP+0x1c> c482dad0 <[sunrpc]rpcauth_gc_credcache+48/b0>
Code; c482dabb <[sunrpc]rpcauth_gc_credcache+33/b0>
7: a1 68 2a 29 c0 mov 0xc0292a68,%eax
Code; c482dac0 <[sunrpc]rpcauth_gc_credcache+38/b0>
c: 39 43 04 cmp %eax,0x4(%ebx)
Code; c482dac3 <[sunrpc]rpcauth_gc_credcache+3b/b0>
f: 79 0b jns 1c <_EIP+0x1c> c482dad0 <[sunrpc]rpcauth_gc_credcache+48/b0>
Code; c482dac5 <[sunrpc]rpcauth_gc_credcache+3d/b0>
11: 8b 03 mov (%ebx),%eax
Code; c482dac7 <[sunrpc]rpcauth_gc_credcache+3f/b0>
13: 89 00 mov %eax,(%eax)

Unable to handle kernel paging request at virtual address feff3112
c482dab4
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c482dab4>]
EFLAGS: 00010286
eax: 00010a9d ebx: feff310a ecx: 00000000 edx: c36c5b20
esi: 00000000 edi: c36c5b20 ebp: 00000000 esp: c1d31d14
ds: 0018 es: 0018 ss: 0018
Process df (pid: 1308, stackpage=c1d31000)
Stack: 08048000 c08c7240 40000000 c1d31d4c 00000000 c36c5b20 c36c5b20 c482db9a
c36c5b20 c1d31da0 c36c5b20 c1d31dd4 c1d31d98 c482dc9f c36c5b20 00000000
c1d31da0 c1d31e80 c482951a c1d31da0 00000000 c1d31da0 c36efc10 c482940c
Call Trace: [<c482db9a>] [<c482dc9f>] [<c482951a>] [<c482940c>] [<c482bfc0>] [<c485f4a8>] [<c01e177a>]
[<c4858aef>] [<c012c0da>] [<c012c125>] [<c0108e0b>]
Code: 66 83 7b 08 00 75 15 a1 68 2a 29 c0 39 43 04 79 0b 8b 03 89

>>EIP; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0> <=====
Trace; c482db9a <[sunrpc]rpcauth_lookup_credcache+36/8c>
Trace; c482dc9f <[sunrpc]rpcauth_bindcred+3b/54>
Trace; c482951a <[sunrpc]rpc_call_setup+36/64>
Trace; c482940c <[sunrpc]rpc_call_sync+64/9c>
Trace; c482bfc0 <[sunrpc]rpc_run_timer+0/44>
Trace; c485f4a8 <[nfs]nfs_proc_statfs+58/7c>
Trace; c01e177a <vsprintf+306/334>
Trace; c4858aef <[nfs]nfs_statfs+33/180>
Trace; c012c0da <vfs_statfs+3a/40>
Trace; c012c125 <sys_statfs+45/f4>
Trace; c0108e0b <system_call+33/38>
Code; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0>
00000000 <_EIP>:
Code; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0> <=====
0: 66 83 7b 08 00 cmpw $0x0,0x8(%ebx) <=====
Code; c482dab9 <[sunrpc]rpcauth_gc_credcache+31/b0>
5: 75 15 jne 1c <_EIP+0x1c> c482dad0 <[sunrpc]rpcauth_gc_credcache+48/b0>
Code; c482dabb <[sunrpc]rpcauth_gc_credcache+33/b0>
7: a1 68 2a 29 c0 mov 0xc0292a68,%eax
Code; c482dac0 <[sunrpc]rpcauth_gc_credcache+38/b0>
c: 39 43 04 cmp %eax,0x4(%ebx)
Code; c482dac3 <[sunrpc]rpcauth_gc_credcache+3b/b0>
f: 79 0b jns 1c <_EIP+0x1c> c482dad0 <[sunrpc]rpcauth_gc_credcache+48/b0>
Code; c482dac5 <[sunrpc]rpcauth_gc_credcache+3d/b0>
11: 8b 03 mov (%ebx),%eax
Code; c482dac7 <[sunrpc]rpcauth_gc_credcache+3f/b0>
13: 89 00 mov %eax,(%eax)

Unable to handle kernel paging request at virtual address feff3112
c482dab4
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c482dab4>]
EFLAGS: 00010286
eax: 00010f52 ebx: feff310a ecx: 00000000 edx: c36c5b20
esi: 00000000 edi: c36c5b20 ebp: 00000000 esp: c2cd5d14
ds: 0018 es: 0018 ss: 0018
Process df (pid: 1315, stackpage=c2cd5000)
Stack: 08048000 c0d6e1b0 40000000 00000014 00000000 c36c5b20 c36c5b20 c482db9a
c36c5b20 c2cd5da0 c36c5b20 c2cd5dd4 c2cd5d98 c482dc9f c36c5b20 00000000
c2cd5da0 c2cd5e80 c482951a c2cd5da0 00000000 c2cd5da0 c36efc10 c482940c
Call Trace: [<c482db9a>] [<c482dc9f>] [<c482951a>] [<c482940c>] [<c482bfc0>] [<c485f4a8>] [<c01e177a>]
[<c4858aef>] [<c012c0da>] [<c012c125>] [<c0108e0b>]
Code: 66 83 7b 08 00 75 15 a1 68 2a 29 c0 39 43 04 79 0b 8b 03 89

>>EIP; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0> <=====
Trace; c482db9a <[sunrpc]rpcauth_lookup_credcache+36/8c>
Trace; c482dc9f <[sunrpc]rpcauth_bindcred+3b/54>
Trace; c482951a <[sunrpc]rpc_call_setup+36/64>
Trace; c482940c <[sunrpc]rpc_call_sync+64/9c>
Trace; c482bfc0 <[sunrpc]rpc_run_timer+0/44>
Trace; c485f4a8 <[nfs]nfs_proc_statfs+58/7c>
Trace; c01e177a <vsprintf+306/334>
Trace; c4858aef <[nfs]nfs_statfs+33/180>
Trace; c012c0da <vfs_statfs+3a/40>
Trace; c012c125 <sys_statfs+45/f4>
Trace; c0108e0b <system_call+33/38>
Code; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0>
00000000 <_EIP>:
Code; c482dab4 <[sunrpc]rpcauth_gc_credcache+2c/b0> <=====
0: 66 83 7b 08 00 cmpw $0x0,0x8(%ebx) <=====
Code; c482dab9 <[sunrpc]rpcauth_gc_credcache+31/b0>
5: 75 15 jne 1c <_EIP+0x1c> c482dad0 <[sunrpc]rpcauth_gc_credcache+48/b0>
Code; c482dabb <[sunrpc]rpcauth_gc_credcache+33/b0>
7: a1 68 2a 29 c0 mov 0xc0292a68,%eax
Code; c482dac0 <[sunrpc]rpcauth_gc_credcache+38/b0>
c: 39 43 04 cmp %eax,0x4(%ebx)
Code; c482dac3 <[sunrpc]rpcauth_gc_credcache+3b/b0>
f: 79 0b jns 1c <_EIP+0x1c> c482dad0 <[sunrpc]rpcauth_gc_credcache+48/b0>
Code; c482dac5 <[sunrpc]rpcauth_gc_credcache+3d/b0>
11: 8b 03 mov (%ebx),%eax
Code; c482dac7 <[sunrpc]rpcauth_gc_credcache+3f/b0>
13: 89 00 mov %eax,(%eax)


1 warning issued. Results may not be reliable.

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