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SubjectRe: BIO Usage Error or Conflicting Designs

Jens,

Here is back at you sir.

Andre Hedrick
Linux Disk Certification Project Linux ATA Development
ksymoops 2.3.5 on i686 2.5.2-pre11. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.5.2-pre11/ (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?
cpu: 0, clocks: 2660067, slice: 886689
cpu: 1, clocks: 2660067, slice: 886689
kernel BUG at highmem.c:374!
invalid operand: 0000
CPU: 1
EIP: 0010:[<c0144478>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: 0000001d ebx: 00000070 ecx: c03785ac edx: 00003ce8
esi: c045ea64 edi: 00038000 ebp: f76bf2c4 esp: f6321de4
ds: 0018 es: 0018 ss: 0018
Process hdparm (pid: 924, stackpage=f6321000)
Stack: c02fe555 00000176 00000000 c045ea64 00000002 f76bf2c4 00000001 00000246
c1effecc 00000000 f1aabd84 00000020 00000000 00000000 c022092e 00038000
00000070 f6321e60 00000000 f7c33344 c045ea64 f76bf2c4 00000002 00000000
Call Trace: [<c022092e>] [<c020f21e>] [<c0220f9f>] [<c02210f1>] [<c02211d9>]
[<c014b31c>] [<c014f46f>] [<c014f3d0>] [<c013477e>] [<c0134cc2>] [<c0134bd0>]
[<c014706e>] [<c010935f>]
Code: 0f 0b 83 c4 08 c7 44 24 24 70 00 00 00 8b 1d 68 b9 43 c0 8b

>>EIP; c0144478 <create_bounce+68/310> <=====
Trace; c022092e <__make_request+5e/590>
Trace; c020f21e <set_cursor+6e/80>
Trace; c0220f9f <generic_make_request+13f/1c0>
Trace; c02210f1 <submit_bio+81/90>
Trace; c02211d9 <submit_bh+d9/e0>
Trace; c014b31c <block_read_full_page+1ec/200>
Trace; c014f46f <blkdev_readpage+f/20>
Trace; c014f3d0 <blkdev_get_block+0/40>
Trace; c013477e <do_generic_file_read+34e/560>
Trace; c0134cc2 <generic_file_read+92/190>
Trace; c0134bd0 <file_read_actor+0/60>
Trace; c014706e <sys_read+8e/d0>
Trace; c010935f <system_call+33/38>
Code; c0144478 <create_bounce+68/310>
00000000 <_EIP>:
Code; c0144478 <create_bounce+68/310> <=====
0: 0f 0b ud2a <=====
Code; c014447a <create_bounce+6a/310>
2: 83 c4 08 add $0x8,%esp
Code; c014447d <create_bounce+6d/310>
5: c7 44 24 24 70 00 00 movl $0x70,0x24(%esp,1)
Code; c0144484 <create_bounce+74/310>
c: 00
Code; c0144485 <create_bounce+75/310>
d: 8b 1d 68 b9 43 c0 mov 0xc043b968,%ebx
Code; c014448b <create_bounce+7b/310>
13: 8b 00 mov (%eax),%eax


1 warning issued. Results may not be reliable.

[root@xathy DiskPerf-1.0.7]# hdparm -t /dev/hde

/dev/hde:
Timing buffered disk reads: kernel BUG at highmem.c:374!
invalid operand: 0000
CPU: 1
EIP: 0010:[<c0144478>] Not tainted
EFLAGS: 00010286
eax: 0000001d ebx: 00000070 ecx: c03785ac edx: 00003ce8
esi: c045ea64 edi: 00038000 ebp: f76bf2c4 esp: f6321de4
ds: 0018 es: 0018 ss: 0018
Process hdparm (pid: 924, stackpage=f6321000)
Stack: c02fe555 00000176 00000000 c045ea64 00000002 f76bf2c4 00000001 00000246
c1effecc 00000000 f1aabd84 00000020 00000000 00000000 c022092e 00038000
00000070 f6321e60 00000000 f7c33344 c045ea64 f76bf2c4 00000002 00000000
Call Trace: [<c022092e>] [<c020f21e>] [<c0220f9f>] [<c02210f1>] [<c02211d9>]
[<c014b31c>] [<c014f46f>] [<c014f3d0>] [<c013477e>] [<c0134cc2>] [<c0134bd0>]
[<c014706e>] [<c010935f>]

Code: 0f 0b 83 c4 08 c7 44 24 24 70 00 00 00 8b 1d 68 b9 43 c0 8b
Segmentation fault

[root@xathy DiskPerf-1.0.7]# hdparm -v /dev/hde

/dev/hde:
multcount = 0 (off)
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 55488/255/63, sectors = 320173056, start = 0

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