On Mar 21 2007 23:58, Eric Dumazet wrote:
quoted text
> Hi all
>
> On i386 , 2.6.20 / 2.6.21-rc4 :
>
> # gdb vmlinux /proc/kcore
> error
> # file /proc/kcore
> error

00:11 ichi:/hld # file /proc/kcore
/proc/kcore: ELF 32-bit LSB core file Intel 80386, version 1 (SYSV),
SVR4-style, from 'vmlinux'
00:11 ichi:/hld # hexdump -C /proc/kcore | head -n5
00000000  7f 45 4c 46 01 01 01 00  00 00 00 00 00 00 00 00  |.ELF............|
00000010  04 00 03 00 01 00 00 00  00 00 00 00 34 00 00 00  |............4...|
00000020  00 00 00 00 00 00 00 00  34 00 20 00 03 00 00 00  |........4. .....|
00000030  00 00 00 00 04 00 00 00  94 00 00 00 00 00 00 00  |................|
00000040  00 00 00 00 a8 06 00 00  00 00 00 00 00 00 00 00  |................|
00:11 ichi:/hld # uname -rm
2.6.20.2 i686

quoted text
>
>
> Apparently we can not llseek() anymore on this file (returns -EINVAL)
>
> On x86_64 2.6.20 it's working
>
> # file /proc/kcore
> /proc/kcore: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style
>
>
> On i386 2.6.14 it's working too.
>
> Eric
> -
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>

Jan
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