Yesterday, I noticed that netstat had stopped working on my 2.2.17 box
(with the reiserfs 3.5.26 patches and lm-sensors/i2c-2.5.2, as it
happens), built with gcc-1.1.2.

The reason is fairly self-evident:

: loki:/# cat /proc/net/dev
: Inter-|   Receive                                                |  Transmit
:  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets 
:errs drop fifo colls carrier compressed
:     lo:%lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu
:   eth0:%lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu

Probably not right.

This is repeated in other files (I only checked /proc; its
subdirectories are probably affected too, viz /proc/net/dev above):

: loki:/# cat /proc/uptime 
: %lu.%lu %lu.%lu

: loki:/proc# cat locks 
: 1: POSIX  ADVISORY  WRITE 481 08:07:%ld %ld %ld %lx %lx %lx %lx %lx
: 1: -> POSIX  ADVISORY  WRITE 174 08:07:%ld %ld %ld %lx %lx %lx %lx %lx
: 1: -> POSIX  ADVISORY  WRITE 175 08:07:%ld %ld %ld %lx %lx %lx %lx %lx

: loki:/proc# cat meminfo 
:         total:    used:    free:  shared: buffers:  cached:
: Mem:  %lu %lu %lu %lu %lu %lu
: Swap: %lu %lu %lu
: MemTotal:  %lu kB
: MemFree:   %lu kB
: MemShared: %lu kB
: Buffers:   %lu kB
: Cached:    %lu kB
: SwapTotal: %lu kB
: SwapFree:  %lu kB

: loki:/proc# cat modules 
: lm75                %lu%ld
: lm78                %lu%ld
: sensors             %lu%ld [lm75 lm78]
: i2c-isa             %lu%ld (unused)
: i2c-piix4           %lu%ld (unused)
: i2c-core            %lu%ld [lm75 lm78 sensors i2c-isa i2c-piix4]
: sb                  %lu%ld
: uart401             %lu%ld [sb]
: sound               %lu%ld [sb uart401]
: soundlow            %lu%ld [sound]
: soundcore           %lu%ld [sb sound]
: nls_cp437           %lu%ld (autoclean)
: reiserfs            %lu%ld

: loki:/proc# cat slabinfo 
: slabinfo - version: 1.0
: kmem_cache        %lu %lu
: pio_request       %lu %lu
: tcp_tw_bucket     %lu %lu
: tcp_bind_bucket   %lu %lu
: tcp_open_request  %lu %lu
: skbuff_head_cache %lu %lu
: sock              %lu %lu
: dquot             %lu %lu
: filp              %lu %lu
: signal_queue      %lu %lu
: buffer_head       %lu %lu
: mm_struct         %lu %lu
: vm_area_struct    %lu %lu
: dentry_cache      %lu %lu
: files_cache       %lu %lu
: uid_cache         %lu %lu
: size-131072       %lu %lu
: size-65536        %lu %lu
: size-32768        %lu %lu
: size-16384        %lu %lu
: size-8192         %lu %lu
: size-4096         %lu %lu
: size-2048         %lu %lu
: size-1024         %lu %lu
: size-512          %lu %lu
: size-256          %lu %lu
: size-128          %lu %lu
: size-64           %lu %lu
: size-32           %lu %lu
: slab_cache        %lu %lu

: loki:/proc# cat stat 
: cpu  10801482 36327863 3223181 %lu
: disk 25052 2198771 0 0
: disk_rio 0 1390850 0 0
: disk_wio 0 807921 0 0
: disk_rblk 0 3675365 0 0
: disk_wblk 0 2264982 0 0
: page 0 6518171
: swap 4765642 246633
: intr 98595 50377578 501107 0 0 0 31628678 3 0 141 4926244 0 1028218 341901 1 1332247 
:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
: ctxt 810791682
: btime %lu
: processes %lu

(really weird; half the fields OK, half %lu?!?)

/proc/ksyms contains random garbage.

/proc/ioports oopses if I try to cat it, but the oops message that
results isn't much use, as the same gremlins have been at it:

: Sep 30 14:57:19 loki kernel: Unable to handle kernel NULL pointer dereference at 
:virtual address %%lx 
: Sep 30 14:57:19 loki last message repeated 2 times
: Sep 30 14:57:19 loki kernel: current->tss.cr3 = %%lx, %%cr3 = %%lx 
: Sep 30 14:57:20 loki last message repeated 2 times
: Sep 30 14:57:20 loki kernel: *pde = %%lx 
: Sep 30 14:57:20 loki last message repeated 2 times
: Sep 30 14:57:20 loki kernel: Oops: %%lx 
: Sep 30 14:57:20 loki kernel: Oops: %%lx 
: Sep 30 14:57:20 loki kernel: CPU:    0 
: Sep 30 14:57:20 loki kernel: CPU:    0 
: Sep 30 14:57:20 loki kernel: EIP:    0010:[<%lx>] 
: Sep 30 14:57:20 loki kernel: EIP:    0010:[<%lx>] 
: Sep 30 14:57:20 loki kernel: EFLAGS: %%lx 
: Sep 30 14:57:20 loki kernel: EFLAGS: %%lx 
: Sep 30 14:57:20 loki kernel: eax: %%lx   ebx: %%lx   ecx: %%lx   edx: %%lx 
: Sep 30 14:57:20 loki kernel: eax: %%lx   ebx: %%lx   ecx: %%lx   edx: %%lx 
: Sep 30 14:57:20 loki kernel: esi: %%lx   edi: %%lx   ebp: %%lx   esp: %%lx 
: Sep 30 14:57:20 loki kernel: esi: %%lx   edi: %%lx   ebp: %%lx   esp: %%lx 
: Sep 30 14:57:20 loki kernel: ds: 0018   es: 0018   ss: 0018 
: Sep 30 14:57:20 loki kernel: ds: 0018   es: 0018   ss: 0018 
: Sep 30 14:57:20 loki kernel: Process cat (pid: 14808, process nr: 171, 
:stackpage=%%lx) 
: Sep 30 14:57:20 loki kernel: Process cat (pid: 14808, process nr: 171, 
:stackpage=%%lx) 
: Sep 30 14:57:20 loki kernel: Stack: %%lx %%lx %%lx %%lx %%lx %%lx %%lx %%lx  
: Sep 30 14:57:20 loki kernel: Stack: %%lx %%lx %%lx %%lx %%lx %%lx %%lx %%lx  
: Sep 30 14:57:20 loki kernel:        %%lx %%lx %%lx %%lx %%lx %%lx %%lx %%lx  
: Sep 30 14:57:20 loki last message repeated 2 times
: Sep 30 14:57:20 loki kernel: Call Trace: [<%lx>] [<%lx>] [<%lx>] [<%lx>] [<%lx>] 
:[<%lx>] [<%lx>]  
: Sep 30 14:57:21 loki kernel:        %%lx %%lx %%lx %%lx %%lx %%lx %%lx %%lx  
: Sep 30 14:57:21 loki kernel: Call Trace: [<%lx>] [<%lx>] [<%lx>] [<%lx>] [<%lx>] 
:[<%lx>] [<%lx>]  
: Sep 30 14:57:21 loki kernel:        [<%lx>] [<%lx>] [<%lx>]  
: Sep 30 14:57:21 loki kernel:        [<%lx>] [<%lx>] [<%lx>]  
: Sep 30 14:57:21 loki kernel: Code: 80 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 89 44 
:24 10 f7 c5  
: Sep 30 14:57:21 loki kernel: Code: 80 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 89 44 
:24 10 f7 c5  

Likewise /proc/rtc.

It's not been wrong forever; it went wrong without warning at 5 days, 19
hours, 45 minutes uptime, according to procmeter.


More cats are available upon request :)

-- 
`Ergotism is what you get if you overuse the word "therefore". Egotism
 on the other hand is a form of "I" strain.' --- Paul Martin
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